/* ===========================================================
   desktop.css — the Electron shell layout.
   The app only ships as a desktop window now, so this file owns
   the whole structural layout: a fixed nav rail, a conversation
   list, and a content pane. Nothing here adapts to phones.
   =========================================================== */

/* -----------------------------------------------------------
   1. shell — rail | list | content
   ----------------------------------------------------------- */
.app{
  display:grid;
  grid-template-columns:var(--rail-w) var(--list-w) minmax(0,1fr);
  grid-template-rows:minmax(0,1fr);
  grid-template-areas:"rail list content";
  width:100%;
  height:100dvh;
  overflow:hidden;
  background:var(--paper);
}

/* macOS traffic lights sit over the rail; leave room for them. */
html.electron-shell .tabbar{padding-top:38px}

/* the nav rail: vertical, always visible */
.tabbar{
  grid-area:rail;
  display:flex;
  flex-direction:column;
  align-items:stretch;
  justify-content:flex-start;
  gap:var(--sp-1);
  padding:var(--sp-4) var(--sp-2);
  border-right:1px solid var(--line);
  background:var(--paper);
  order:0;
  flex:0 0 auto;
}
.tabbar .tab{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  height:58px;
  padding:0;
  border:0;
  border-radius:var(--r-md);
  background:none;
  color:var(--ink-3);
  cursor:pointer;
  font:inherit;
  transition:background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.tabbar .tab:hover{background:var(--surface-2);color:var(--ink-2)}
.tabbar .tab.on{background:var(--accent-soft);color:var(--accent)}
.tabbar .tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.tabbar .tab svg{width:21px;height:21px;flex:0 0 auto}
.tabbar .tab-label{
  font-size:var(--fs-2xs);
  font-weight:500;
  letter-spacing:.02em;
  line-height:1;
}

/* -----------------------------------------------------------
   2. panes — placement depends on the active tab
   -----------------------------------------------------------
   Inbox is the only split view: the conversation list keeps the middle
   column while the chat fills the content column. Every other tab is a
   full-page read, so it spans both columns and nothing sits beside it. */
.list-view,
.tab-view,
.view.chat-view,
.moments-view,
.study-view,
.mine-view,
.search-view{
  display:flex;
  flex-direction:column;
  min-width:0;
  min-height:0;
  overflow:hidden;
  padding-bottom:0;
  background:var(--paper);
}

/* the inbox list owns the middle column, with or without an open chat */
.list-view{
  grid-area:list;
  border-right:1px solid var(--line);
}

/* Chat sits to the right of the list; hidden until a conversation opens.
   display:none also stops it from swallowing clicks meant for the rail. */
.view.chat-view{
  grid-area:content;
  transform:none;
  border-left:0;
  position:relative;
  z-index:1;
  display:none!important;
  pointer-events:none;
}
.view.chat-view.open{
  display:flex!important;
  pointer-events:auto;
}

/* A full-page tab takes the list column as well, so the middle never blanks.
   Column 1 is the rail, so these start at 2 and run to the last line. */
.tab-view,
.search-view{
  grid-column:2 / -1;
  grid-row:1;
}

.list-view[hidden],
.tab-view[hidden],
.search-view[hidden]{display:none!important}

/* the back button only makes sense on a phone; the rail replaces it */
.chat-view .back{display:none}

/* -----------------------------------------------------------
   3. headers — one quiet bar per pane
   ----------------------------------------------------------- */
.bar,
.list-bar,
.search-bar{
  flex:0 0 auto;
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  height:var(--bar-h);
  padding:0 var(--sp-5);
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.list-bar{padding:0 var(--sp-4) 0 var(--sp-5)}
.bar .who{flex:1 1 auto;min-width:0}
.bar .who.center{align-items:flex-start;justify-content:center}
.chat-view .who.center{
  align-items:flex-start;
  max-width:none;
  height:auto;
  justify-content:center;
}
.bar .name{
  font-family:var(--font-display);
  font-size:var(--fs-lg);
  font-weight:600;
  letter-spacing:-.2px;
  color:var(--ink);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.chat-view .who.center .name{font-size:var(--fs-lg)}
.bar .sub{
  margin-top:1px;
  font-size:var(--fs-xs);
  color:var(--ink-3);
}
.list-actions{display:flex;align-items:center;gap:var(--sp-1)}
.plus-btn{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  padding:0;
  border:0;
  border-radius:var(--r-sm);
  background:none;
  color:var(--ink-3);
  cursor:pointer;
  transition:background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.plus-btn:hover{background:var(--surface-2);color:var(--ink)}
.plus-btn svg{display:block}

/* the chat's overflow menu button */
.more{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  padding:0;
  border:0;
  border-radius:var(--r-sm);
  background:none;
  color:var(--ink-3);
  cursor:pointer;
}
.more:hover{background:var(--surface-2);color:var(--ink)}

/* -----------------------------------------------------------
   4. Floating surfaces
   -----------------------------------------------------------
   One visual language for everything that pops over the page:
   - a soft shadow, a hairline border and a 14px radius
   - 6px padding with 8px inner rows
   - the same enter animation everywhere
   Menus anchor under their trigger; panels centre themselves. */
@keyframes pp-pop-in{
  from{opacity:0;transform:translateY(-4px) scale(.985)}
  to{opacity:1;transform:none}
}
@keyframes pp-fade-in{
  from{opacity:0}
  to{opacity:1}
}
@keyframes pp-dialog-in{
  from{opacity:0;transform:translateY(8px) scale(.99)}
  to{opacity:1;transform:none}
}

/* dropdown menus (chat overflow, list overflow, composer "+") */
.menu,
.plus-panel{
  position:absolute;
  z-index:60;
  display:flex;
  flex-direction:column;
  gap:1px;
  min-width:196px;
  padding:6px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--surface);
  box-shadow:0 12px 32px rgba(19,19,18,.13), 0 2px 6px rgba(19,19,18,.06);
  animation:pp-pop-in var(--dur-1) var(--ease);
  transform-origin:top right;
}
.menu[hidden],
.plus-panel[hidden]{display:none}

.menu{
  top:calc(var(--bar-h) + 4px);
  right:var(--sp-4);
}
.list-menu{right:var(--sp-4)}
/* the composer's panel opens upward, anchored to the "+" button */
.plus-panel{
  top:auto;
  bottom:calc(100% + 8px);
  right:0;
  min-width:160px;
  transform-origin:bottom right;
}

.menu button,
.plus-panel button{
  display:flex;
  align-items:center;
  justify-content:flex-start;
  width:100%;
  padding:8px 10px;
  border:0;
  border-radius:var(--r-xs);
  background:none;
  color:var(--ink);
  font:inherit;
  font-size:var(--fs-md);
  line-height:1.35;
  text-align:left;
  cursor:pointer;
  transition:background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.menu button:hover,
.plus-panel button:hover{background:var(--surface-2)}
.menu button:active,
.plus-panel button:active{background:var(--line-soft)}
.menu button[hidden]{display:none}
/* destructive rows read red without a separate class */
.menu button#reset{color:var(--red)}
.menu button#reset:hover{background:var(--red-soft)}

/* -----------------------------------------------------------
   5. conversation list
   ----------------------------------------------------------- */
.rows{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  overscroll-behavior:contain;
  padding:var(--sp-2) 0 var(--sp-6);
}
.pal-row{
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  padding:11px var(--sp-5);
  cursor:pointer;
  border-left:2px solid transparent;
  transition:background var(--dur-1) var(--ease);
}
.pal-row:hover{background:var(--surface-2)}
.pal-row.on{
  background:var(--accent-soft);
  border-left-color:var(--accent);
}
.pal-row .unread-dot{
  width:7px;
  height:7px;
  border-radius:var(--r-full);
  background:var(--accent);
  flex:0 0 auto;
}

/* -----------------------------------------------------------
   6. chat transcript
   ----------------------------------------------------------- */
.chat{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  overscroll-behavior:contain;
  display:flex;
  flex-direction:column;
  gap:var(--sp-3);
  padding:var(--sp-5) var(--sp-6);
}

/* Per-message tools (translate / 精读 / 朗读 …). On a phone these lived behind
   a long-press menu because a finger tap is precious; with a mouse they can sit
   under the bubble, so give them a readable size and a hover state. */
.tools{
  display:flex;
  align-items:center;
  gap:var(--sp-4);
  margin-top:6px;
  padding-left:2px;
}
.tools .tr-btn{
  padding:3px 8px;
  border:0;
  border-radius:var(--r-xs);
  background:none;
  color:var(--ink-3);
  font:inherit;
  font-size:var(--fs-sm);
  letter-spacing:0;
  cursor:pointer;
  transition:background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.tools .tr-btn:hover{background:var(--surface-2);color:var(--ink)}
.tools .tr-btn:disabled{color:var(--ink-4);cursor:default}
.tools .tr-btn:disabled:hover{background:none}
.tools .sep{color:var(--line);font-size:10px;line-height:1}

/* -----------------------------------------------------------
   7. composer — a card pinned to the bottom of the chat pane
   ----------------------------------------------------------- */
.composer{
  flex:0 0 auto;
  display:flex;
  align-items:flex-end;
  gap:var(--sp-2);
  margin:0 var(--sp-6) var(--sp-5);
  padding:var(--sp-2) var(--sp-2) var(--sp-2) var(--sp-3);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--surface);
  box-shadow:var(--shadow-sm);
  position:relative;
}
.composer textarea{
  flex:1 1 auto;
  min-height:24px;
  max-height:168px;
  padding:6px 0;
  border:0;
  background:none;
  color:var(--ink);
  font:inherit;
  font-size:var(--fs-base);
  line-height:1.45;
  resize:none;
  outline:none;
}
.composer textarea::placeholder{color:var(--ink-4)}
.composer #send{
  flex:0 0 auto;
  height:32px;
  padding:0 var(--sp-4);
  border:0;
  border-radius:var(--r-sm);
  background:var(--accent);
  color:var(--accent-ink);
  font:inherit;
  font-size:var(--fs-sm);
  font-weight:600;
  cursor:pointer;
  transition:opacity var(--dur-1) var(--ease);
}
.composer #send:hover{opacity:.88}
.composer .mic-btn,
.composer .at-btn{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  flex:0 0 auto;
  padding:0;
  border:0;
  border-radius:var(--r-sm);
  background:none;
  color:var(--ink-3);
  font:inherit;
  font-size:var(--fs-lg);
  cursor:pointer;
}
.composer .mic-btn:hover,
.composer .at-btn:hover{background:var(--surface-2);color:var(--ink)}

/* .plus-panel is defined with the other floating surfaces in section 4. */

/* -----------------------------------------------------------
   8. overlays — search, sheets, auth, welcome
   ----------------------------------------------------------- */
.search-view{grid-area:content;border-left:0}
.search-view[hidden]{display:none!important}
.search-bar input{
  flex:1 1 auto;
  height:30px;
  padding:0 var(--sp-3);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  color:var(--ink);
  font:inherit;
  font-size:var(--fs-sm);
  outline:none;
}
.search-bar input:focus{border-color:var(--accent)}
.search-cancel{
  flex:0 0 auto;
  padding:4px 8px;
  border:0;
  border-radius:var(--r-xs);
  background:none;
  color:var(--ink-2);
  font:inherit;
  font-size:var(--fs-sm);
  cursor:pointer;
}

/* The sheet is a centred dialog on desktop, not a phone slide-up. It dims the
   page behind it with a scrim drawn by ::backdrop-free means: a fixed pseudo
   element keeps the markup unchanged. */
.sheet{
  position:fixed;
  inset:0;
  z-index:90;
  display:flex;
  flex-direction:column;
  width:min(760px,86vw);
  height:min(80dvh,760px);
  margin:auto;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--surface);
  box-shadow:0 24px 64px rgba(19,19,18,.22), 0 4px 12px rgba(19,19,18,.08);
  overflow:hidden;
  animation:pp-dialog-in var(--dur-2) var(--ease);
}
/* the scrim sits behind the dialog box */
.sheet::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:-1;
  background:rgba(19,19,18,.28);
  backdrop-filter:blur(2px);
  animation:pp-fade-in var(--dur-1) var(--ease);
}
.sheet[hidden],
.sheet:not(.open){display:none}

/* The legacy rules pad for phone safe areas (notch, home indicator) and use a
   12px gutter, which reads as cramped inside a 760px desktop dialog. */
.sheet-bar{
  height:56px;
  padding:0 var(--sp-5);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-3);
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.sheet-back{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  padding:0;
  border:0;
  border-radius:var(--r-sm);
  background:none;
  color:var(--ink-2);
  font:inherit;
  font-size:22px;
  line-height:1;
  cursor:pointer;
  transition:background var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.sheet-back:hover{background:var(--surface-2);color:var(--ink)}
.sheet-title{
  flex:1 1 auto;
  font-family:var(--font-display);
  font-size:var(--fs-xl);
  font-weight:600;
  letter-spacing:-.2px;
  color:var(--ink);
  text-align:center;
}
.sheet-body{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  padding:var(--sp-6) var(--sp-7) var(--sp-7);
  background:var(--surface);
  scrollbar-width:thin;
  scrollbar-color:var(--line) transparent;
}
.sheet-body::-webkit-scrollbar{display:block;width:10px}
.sheet-body::-webkit-scrollbar-thumb{
  border:3px solid transparent;
  border-radius:var(--r-full);
  background-clip:content-box;
  background-color:var(--line);
}

/* auth screen: a single centred card */
.auth-view{
  position:fixed;
  inset:0;
  z-index:90;
  display:grid;
  place-items:center;
  background:var(--bg);
}
.auth-view[hidden]{display:none!important}
.auth-card{
  width:min(380px,90vw);
  padding:var(--sp-7);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--paper);
  box-shadow:var(--shadow-md);
}

/* welcome flow */
.welcome{
  position:fixed;
  inset:0;
  z-index:85;
  display:grid;
  place-items:center;
  overflow-y:auto;
  background:var(--bg);
}
.welcome[hidden]{display:none!important}
.welcome-inner{
  width:min(560px,90vw);
  padding:var(--sp-8) 0;
}

/* The action sheet is a centred menu card on desktop, not a bottom drawer.
   style.css paints it as a full-width sheet stuck to the bottom edge, so
   every property that shapes it has to be reset here. */
.action-sheet{
  position:fixed;
  inset:0;
  z-index:95;
  display:grid;
  place-items:center;
  padding:var(--sp-6);
  background:rgba(19,19,18,.34);
  backdrop-filter:blur(3px);
  animation:pp-fade-in var(--dur-1) var(--ease);
}
.action-sheet[hidden]{display:none}

.as-panel{
  display:flex;
  flex-direction:column;
  gap:1px;
  width:min(340px,90vw);
  max-height:min(70dvh,560px);
  overflow-y:auto;
  padding:6px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--surface);
  box-shadow:0 20px 48px rgba(19,19,18,.2), 0 3px 10px rgba(19,19,18,.08);
  animation:pp-dialog-in var(--dur-2) var(--ease);
}
.as-panel button{
  display:flex;
  align-items:center;
  justify-content:flex-start;
  width:100%;
  padding:9px 10px;
  border:0;
  border-radius:var(--r-xs);
  background:none;
  color:var(--ink);
  font:inherit;
  font-size:var(--fs-md);
  line-height:1.35;
  text-align:left;
  cursor:pointer;
  transition:background var(--dur-1) var(--ease);
}
.as-panel button:hover{background:var(--surface-2)}
.as-panel button.danger{color:var(--red)}
.as-panel button.danger:hover{background:var(--red-soft)}
.as-panel button.cancel{
  margin-top:5px;
  padding-top:11px;
  border-top:1px solid var(--line);
  border-radius:0;
  color:var(--ink-3);
  justify-content:center;
}

/* emoji picker: same surface language, anchored above the composer */
.emoji-panel{
  position:fixed;
  z-index:75;
  width:min(352px,90vw);
  max-height:300px;
  overflow-y:auto;
  padding:8px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--surface);
  box-shadow:0 16px 40px rgba(19,19,18,.16), 0 2px 8px rgba(19,19,18,.07);
  animation:pp-pop-in var(--dur-1) var(--ease);
}
.emoji-panel[hidden]{display:none}

/* toast: a quiet pill above the composer, never blocking clicks */
.toast{
  position:fixed;
  left:50%;
  bottom:var(--sp-8);
  z-index:120;
  transform:translateX(-50%) translateY(6px);
  padding:8px var(--sp-4);
  border-radius:var(--r-full);
  background:var(--ink);
  color:var(--paper);
  font-size:var(--fs-sm);
  box-shadow:0 8px 24px rgba(19,19,18,.18);
  opacity:0;
  pointer-events:none;
  transition:opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* -----------------------------------------------------------
   9. a comfortable reading measure for long-form panes
   ----------------------------------------------------------- */
.moments-body,
.study-view,
.mine-view{
  overflow-y:auto;
  overscroll-behavior:contain;
}
.moments-body > *,
.study-view > *,
.mine-view > *{
  width:100%;
  max-width:var(--measure);
  margin-inline:auto;
  padding-inline:var(--sp-7);
}

/* -----------------------------------------------------------
   10. scrollbars — thin and quiet on desktop
   ----------------------------------------------------------- */
.rows,
.chat,
.moments-body,
.study-view,
.mine-view,
.search-body,
.emoji-panel{
  scrollbar-width:thin;
  scrollbar-color:var(--line) transparent;
}
.rows::-webkit-scrollbar,
.chat::-webkit-scrollbar,
.moments-body::-webkit-scrollbar,
.study-view::-webkit-scrollbar,
.mine-view::-webkit-scrollbar,
.search-body::-webkit-scrollbar{
  width:10px;
}
.rows::-webkit-scrollbar-thumb,
.chat::-webkit-scrollbar-thumb,
.moments-body::-webkit-scrollbar-thumb,
.study-view::-webkit-scrollbar-thumb,
.mine-view::-webkit-scrollbar-thumb,
.search-body::-webkit-scrollbar-thumb{
  border:3px solid transparent;
  border-radius:var(--r-full);
  background-clip:content-box;
  background-color:var(--line);
}
.rows::-webkit-scrollbar-track,
.chat::-webkit-scrollbar-track,
.moments-body::-webkit-scrollbar-track,
.study-view::-webkit-scrollbar-track,
.mine-view::-webkit-scrollbar-track,
.search-body::-webkit-scrollbar-track{background:transparent}

/* -----------------------------------------------------------
   11. cloud sync panel
   ----------------------------------------------------------- */
.sync-panel{
  display:flex;
  flex-direction:column;
  gap:var(--sp-5);
}
.sync-head h3{
  margin:0 0 4px;
  font-family:var(--font-display);
  font-size:var(--fs-lg);
  font-weight:600;
  color:var(--ink);
}
.sync-head p{
  margin:0;
  font-size:var(--fs-sm);
  color:var(--ink-3);
  line-height:1.5;
}
.sync-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:var(--sp-4);
}
.sync-col{
  padding:var(--sp-4);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--surface);
}
.sync-col > b{
  display:block;
  margin-bottom:var(--sp-3);
  font-size:var(--fs-sm);
  font-weight:600;
  color:var(--ink-2);
  letter-spacing:.02em;
}
.sync-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:5px 0;
  font-size:var(--fs-sm);
  color:var(--ink-3);
  border-top:1px solid var(--line-soft);
}
.sync-row:first-of-type{border-top:0}
.sync-row b{
  font-family:var(--font-mono);
  font-size:var(--fs-sm);
  font-weight:500;
  color:var(--ink);
}
.sync-none{
  padding:var(--sp-4) 0;
  font-size:var(--fs-sm);
  color:var(--ink-4);
  text-align:center;
}
.sync-actions{
  display:flex;
  gap:var(--sp-3);
}
.sync-btn{
  flex:1 1 auto;
  height:38px;
  padding:0 var(--sp-4);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  color:var(--ink);
  font:inherit;
  font-size:var(--fs-sm);
  font-weight:500;
  cursor:pointer;
  transition:background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.sync-btn:hover{background:var(--surface-2);border-color:var(--ink-4)}
.sync-btn:disabled{opacity:.55;cursor:default}
.sync-btn.primary{
  border-color:var(--accent);
  background:var(--accent);
  color:var(--accent-ink);
}
.sync-btn.primary:hover{opacity:.9;background:var(--accent)}

/* -----------------------------------------------------------
   12. cloud recovery banner
   ----------------------------------------------------------- */
.sync-prompt{
  position:fixed;
  left:50%;
  bottom:var(--sp-7);
  z-index:110;
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  padding:var(--sp-3) var(--sp-3) var(--sp-3) var(--sp-4);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--surface);
  box-shadow:0 16px 40px rgba(19,19,18,.18), 0 2px 8px rgba(19,19,18,.07);
  transform:translateX(-50%) translateY(10px);
  opacity:0;
  pointer-events:none;
  transition:opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
}
.sync-prompt[hidden]{display:none}
.sync-prompt.show{
  opacity:1;
  transform:translateX(-50%) translateY(0);
  pointer-events:auto;
}
.sp-text{
  display:flex;
  flex-direction:column;
  gap:1px;
  min-width:0;
}
.sp-text b{
  font-size:var(--fs-md);
  font-weight:600;
  color:var(--ink);
}
.sp-text span{
  font-size:var(--fs-sm);
  color:var(--ink-3);
}
.sp-go{
  flex:0 0 auto;
  height:32px;
  padding:0 var(--sp-4);
  border:0;
  border-radius:var(--r-sm);
  background:var(--accent);
  color:var(--accent-ink);
  font:inherit;
  font-size:var(--fs-sm);
  font-weight:600;
  cursor:pointer;
  transition:opacity var(--dur-1) var(--ease);
}
.sp-go:hover{opacity:.9}
.sp-go:disabled{opacity:.55;cursor:default}
.sp-later{
  flex:0 0 auto;
  height:32px;
  padding:0 var(--sp-3);
  border:0;
  border-radius:var(--r-sm);
  background:none;
  color:var(--ink-3);
  font:inherit;
  font-size:var(--fs-sm);
  cursor:pointer;
}
.sp-later:hover{background:var(--surface-2);color:var(--ink)}

/* -----------------------------------------------------------
   13. model candidate chips
   -----------------------------------------------------------
   设置面板里「模型名称」下面的一排按钮：一眼看到有哪些可选，
   点一下填进输入框，输入框本身仍可自由编辑。 */
.model-chips{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-top:6px;
}
.model-chip{
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:var(--r-full);
  background:var(--surface);
  color:var(--ink-2);
  font:inherit;
  font-size:var(--fs-xs);
  line-height:1.5;
  cursor:pointer;
  transition:background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.model-chip:hover{
  border-color:var(--accent);
  color:var(--accent);
  background:var(--accent-soft);
}
.model-chip.on{
  border-color:var(--accent);
  background:var(--accent);
  color:var(--accent-ink);
}

/* ===========================================================
   v3 — quiet literary salon
   A warmer paper palette, a full-height rail, editorial type,
   and a calmer chat surface. These rules sit last on purpose.
   =========================================================== */

:root{
  --bg:#E9E3D9;
  --paper:#FBF8F2;
  --paper-2:#F4EEE4;
  --surface:#FFFCF7;
  --surface-2:#F6F0E7;
  --line:#E4DBCE;
  --line-soft:#EFE7DB;
  --ink:#1D1B17;
  --ink-2:#5B554B;
  --ink-3:#8C8375;
  --ink-4:#B9AF9F;
  --accent:#234E3B;
  --accent-ink:#F8F3E9;
  --accent-soft:#E4EEE6;
  --gold:#B08D57;
  --gold-soft:#F3E9D8;
  --red:#A84334;
  --red-soft:#F7E8E4;
  --amber:#A9772B;
  --amber-soft:#F8EFDF;
  --bubble:#FFFCF7;
  --font-body:"Avenir Next","SF Pro Text",-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",sans-serif;
  --font-display:"Iowan Old Style","Palatino Linotype","Songti SC",Georgia,"Times New Roman",serif;
  --font-mono:"SF Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --shadow-sm:0 1px 2px rgba(29,27,23,.04);
  --shadow-md:0 12px 34px rgba(29,27,23,.08);
  --shadow-lg:0 28px 80px rgba(29,27,23,.16);
  --rail-w:86px;
  --list-w:360px;
  --bar-h:92px;
  --measure:760px;
}

[data-theme="dark"]{
  --bg:#11100E;
  --paper:#171512;
  --paper-2:#1D1A16;
  --surface:#211E19;
  --surface-2:#28241E;
  --line:#332E26;
  --line-soft:#28231D;
  --ink:#F1EBDD;
  --ink-2:#BDB4A3;
  --ink-3:#8E8575;
  --ink-4:#5E574B;
  --accent:#8DBBA2;
  --accent-ink:#11100E;
  --accent-soft:#203127;
  --gold:#C4A46D;
  --gold-soft:#2E271B;
  --red:#D87868;
  --red-soft:#33201B;
  --amber:#D4A55F;
  --amber-soft:#2E2718;
  --bubble:#211E19;
  color-scheme:dark;
}

html,body{background:var(--bg)}
body{font-family:var(--font-body);color:var(--ink)}

/* the framed app ------------------------------------------------ */
.app{
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(176,141,87,.10), transparent 46%),
    radial-gradient(90% 70% at 0% 100%, rgba(35,78,59,.06), transparent 50%),
    var(--paper);
}
.view,.list-view,.tab-view,.moments-view,.study-view,.mine-view,.search-view{background:var(--paper)}

/* rail ---------------------------------------------------------- */
.tabbar{
  grid-area:rail!important;
  align-self:stretch!important;
  margin-top:0!important;
  border-top:0!important;
  border-right:1px solid var(--line);
  background:linear-gradient(180deg,var(--paper-2),var(--paper) 38%);
  padding:22px 12px 18px;
  gap:5px;
}
html.electron-shell .tabbar{padding-top:40px}
.rail-brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
  padding:4px 0 26px;
}
.rail-mark{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--accent);
  color:var(--accent-ink);
  font-family:var(--font-display);
  font-size:23px;font-weight:600;
  box-shadow:0 8px 22px rgba(35,78,59,.22);
}
.rail-word{
  font-family:var(--font-display);
  font-size:11px;letter-spacing:.16em;text-transform:lowercase;
  color:var(--ink-3);
}
.tabbar .tab{
  flex:0 0 auto;
  height:64px;
  border-radius:16px;
  color:var(--ink-3);
  transition:background var(--dur-1) var(--ease),color var(--dur-1) var(--ease),transform var(--dur-1) var(--ease);
}
.tabbar .tab .tab-label{font-size:10px;letter-spacing:.05em;font-weight:500}
.tabbar .tab:hover{background:var(--surface);color:var(--ink)}
.tabbar .tab.on{background:var(--accent-soft);color:var(--accent)}
.tabbar .tab.on:hover{background:var(--accent-soft)}
#tabMine{margin-top:auto}
#tabMine::before{
  content:"";
  display:block;
  height:1px;
  margin:0 14px 12px;
  background:var(--line);
  position:absolute;
  left:12px;right:12px;top:-7px;
}
#tabMine{position:relative}

/* inbox list ---------------------------------------------------- */
.list-view{
  grid-area:list!important;
  border-right:1px solid var(--line);
  background:var(--paper);
}
.list-bar{
  height:var(--bar-h);
  padding:17px 18px 12px 24px;
  align-items:flex-start;
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.list-kicker{
  font-family:var(--font-mono);
  font-size:9px;letter-spacing:.18em;color:var(--gold);
  margin-bottom:2px;
}
.list-bar .who .name{
  font-family:var(--font-display);
  font-size:31px;font-weight:600;line-height:1;letter-spacing:-.035em;
}
.list-bar .who .sub{
  display:block;
  margin-top:5px;
  font-family:var(--font-body);
  font-size:11.5px;letter-spacing:0;text-transform:none;color:var(--ink-3);
}
.list-actions{gap:4px;margin-top:5px}
.plus-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid transparent;
  color:var(--ink-3);
}
.plus-btn:hover{background:var(--surface);border-color:var(--line);color:var(--ink)}
.rows{padding:8px 12px 26px;background:var(--paper)}
.pal-row{
  min-height:76px;
  padding:12px 14px;
  margin:0 0 4px;
  border:1px solid transparent;
  border-radius:16px;
  background:transparent;
  transition:background var(--dur-1) var(--ease),border-color var(--dur-1) var(--ease),transform var(--dur-1) var(--ease),box-shadow var(--dur-1) var(--ease);
}
.pal-row:hover{
  background:var(--surface);
  border-color:var(--line-soft);
  transform:translateY(-1px);
  box-shadow:var(--shadow-sm);
}
.pal-row .av{
  width:46px;height:46px;
  font-family:var(--font-display);
  font-size:19px;
  border:1px solid rgba(255,255,255,.5);
  box-shadow:0 3px 10px rgba(29,27,23,.06);
}
.pal-top b{font-size:15.5px;font-weight:600;letter-spacing:-.01em}
.pal-top span{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.02em;color:var(--ink-4)}
.pal-last{margin-top:3px;font-size:12.5px;color:var(--ink-3);line-height:1.45}
.unread-dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--gold);margin-left:7px;vertical-align:middle;
  box-shadow:0 0 0 3px var(--gold-soft);
}
.list-menu{
  top:calc(var(--bar-h) - 8px);
  right:18px;
  min-width:170px;
  padding:6px;
  border:1px solid var(--line);
  border-radius:14px;
  background:var(--surface);
  box-shadow:var(--shadow-md);
}
.list-menu button{
  display:block;width:100%;
  padding:11px 12px;
  border-radius:9px;
  text-align:left;
  font-size:13.5px;
  color:var(--ink-2);
}
.list-menu button:hover{background:var(--surface-2);color:var(--ink)}

/* welcome ------------------------------------------------------- */
.welcome-view{
  grid-area:content!important;
  position:relative!important;
  inset:auto!important;
  display:flex;
  overflow-y:auto;
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(176,141,87,.09), transparent 46%),
    var(--paper);
}
.welcome-view[hidden]{display:none!important}
.welcome-inner{
  width:100%;max-width:980px;
  margin:auto;
  padding:clamp(44px,6vw,82px) clamp(28px,5vw,72px);
}
.welcome-kicker{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.22em;color:var(--gold)}
.welcome-title{
  margin:16px 0 16px;
  font-family:var(--font-display);
  font-size:clamp(42px,5vw,70px);
  font-weight:500;
  line-height:1.02;
  letter-spacing:-.04em;
  color:var(--ink);
}
.welcome-title em{font-style:italic;color:var(--accent)}
.welcome-sub{
  max-width:470px;
  margin:0;
  color:var(--ink-2);
  font-size:14.5px;line-height:1.7;
}
.welcome-cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:10px;
  margin:36px 0 30px;
}
.welcome-card{
  display:flex;align-items:flex-start;gap:12px;
  min-height:116px;
  padding:17px;
  text-align:left;
  border:1px solid var(--line);
  border-radius:18px;
  background:color-mix(in srgb, var(--surface) 88%, transparent);
  transition:transform var(--dur-2) var(--ease),border-color var(--dur-2) var(--ease),box-shadow var(--dur-2) var(--ease),background var(--dur-2) var(--ease);
}
.welcome-card:hover{
  transform:translateY(-3px);
  border-color:var(--gold);
  background:var(--surface);
  box-shadow:var(--shadow-md);
}
.welcome-avatar{
  flex:0 0 42px;width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:50%;
  font-family:var(--font-display);font-size:19px;color:#4B3A22;
  background:var(--gold-soft);
}
.welcome-avatar.emma{background:#EDE2CF;color:#6A4D24}
.welcome-avatar.marcus{background:#DDE6EC;color:#345069}
.welcome-avatar.nadia{background:#E1EADF;color:#3D5A37}
.welcome-card-body{min-width:0;flex:1}
.welcome-card-body b{display:block;font-family:var(--font-display);font-size:19px;font-weight:600;line-height:1.2}
.welcome-card-body span{display:block;margin-top:5px;color:var(--ink-3);font-size:11.5px;line-height:1.5}
.welcome-card i{margin-left:auto;color:var(--gold);font-style:normal;font-size:15px}
.welcome-prompt{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.welcome-prompt-label{width:100%;font-family:var(--font-mono);font-size:9px;letter-spacing:.2em;color:var(--gold)}
.welcome-prompt p{
  flex:1 1 320px;
  margin:0;
  font-family:var(--font-display);
  font-size:clamp(18px,2vw,23px);
  line-height:1.35;letter-spacing:-.015em;color:var(--ink-2);
}
.welcome-cta{
  flex:0 0 auto;
  height:46px;padding:0 22px;
  display:inline-flex;align-items:center;gap:10px;
  border-radius:var(--r-full);
  background:var(--accent);color:var(--accent-ink);
  font-size:13.5px;font-weight:600;letter-spacing:.01em;
  box-shadow:0 8px 22px rgba(35,78,59,.2);
  transition:transform var(--dur-1) var(--ease),filter var(--dur-1) var(--ease);
}
.welcome-cta:hover{transform:translateY(-1px);filter:brightness(1.05)}
.welcome-cta span{font-size:17px;line-height:1}

/* chat ---------------------------------------------------------- */
.chat-view{
  grid-area:content!important;
  border-left:0!important;
  background:var(--paper);
}
.chat-view .bar{
  height:var(--bar-h);
  padding:0 28px;
  justify-content:flex-start;
  border-bottom:1px solid var(--line);
  background:color-mix(in srgb,var(--paper) 92%,transparent);
  backdrop-filter:blur(10px);
}
.chat-view .back,#backBtn{display:none!important}
.chat-avatar{cursor:pointer;
  flex:0 0 44px;width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--gold-soft);color:#5D4624;
  font-family:var(--font-display);font-size:20px;font-weight:600;
  margin-right:13px;
}
.chat-avatar.emma{background:#EDE2CF;color:#6A4D24}
.chat-avatar.marcus{background:#DDE6EC;color:#345069}
.chat-avatar.nadia{background:#E1EADF;color:#3D5A37}
.chat-avatar.gloria{background:#EAD9E3;color:#6B3550}
.chat-avatar.group{background:var(--surface-2);color:var(--ink-2);font-size:13px;letter-spacing:.03em}
.chat-view .who.center{
  position:static;
  left:auto;top:auto;transform:none;
  align-items:flex-start;
  justify-content:flex-start;
  max-width:none;height:auto;
  display:flex;flex-direction:column;
  text-align:left;
}
.chat-view .who.center .name{
  font-family:var(--font-display);
  font-size:23px;font-weight:600;line-height:1.1;letter-spacing:-.025em;
  justify-content:flex-start;
}
.chat-view .who.center .sub{
  margin-top:4px;
  font-family:var(--font-body);
  font-size:11px;letter-spacing:.01em;text-transform:none;color:var(--ink-3);
}
.chat-view .more{margin-left:auto;width:36px;height:36px;border-radius:50%}
.chat-view .more:hover{background:var(--surface-2);color:var(--ink)}
.menu{
  border:1px solid var(--line);
  border-radius:16px;
  background:var(--surface);
  box-shadow:var(--shadow-md);
  padding:6px;
}
.menu button{border-radius:9px;padding:10px 12px;font-size:13.5px;color:var(--ink-2)}
.menu button:hover{background:var(--surface-2);color:var(--ink)}

.chat{
  padding:26px max(28px,calc((100% - 760px)/2)) 18px;
  background:
    radial-gradient(80% 100% at 100% 0%, rgba(176,141,87,.045), transparent 55%),
    var(--paper);
}
.stamp{
  text-align:center;
  margin:8px 0 24px;
  font-family:var(--font-mono);
  font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-4);
}
.row{gap:11px;margin-bottom:22px}
.col{max-width:min(76%,620px)}
.av{
  width:35px;height:35px;
  font-family:var(--font-display);font-size:14px;
  border:1px solid rgba(255,255,255,.55);
  box-shadow:0 2px 8px rgba(29,27,23,.05);
}
.bubble{
  padding:13px 17px;
  border-radius:19px;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--ink);
  box-shadow:var(--shadow-sm);
  font-size:15px;line-height:1.6;
}
.row.ai .bubble{
  font-family:var(--font-display);
  font-size:16.5px;line-height:1.55;
  border-bottom-left-radius:6px;
}
.row.me .bubble{
  background:var(--accent);
  color:var(--accent-ink);
  border-color:transparent;
  border-bottom-right-radius:6px;
  box-shadow:0 8px 20px rgba(35,78,59,.14);
}
.sender-name{font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-4);margin:0 0 5px 3px}
.tools,.tools-right{
  opacity:0;
  pointer-events:none;
  transform:translateY(-2px);
  transition:opacity var(--dur-1) var(--ease),transform var(--dur-1) var(--ease);
}
.row:hover .tools,.row:hover .tools-right,.row:focus-within .tools,.row:focus-within .tools-right{
  opacity:1;pointer-events:auto;transform:none;
}
.tr-btn,.chip{
  border-radius:var(--r-full);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-3);
  font-size:11px;padding:4px 10px;
}
.tr-btn:hover,.chip:hover{border-color:var(--gold);color:var(--ink)}
.chip .dot{background:var(--gold)}
.tr{background:var(--surface);border-color:var(--line);border-radius:14px;font-size:13px;color:var(--ink-2)}
.fb{background:var(--surface);border-color:var(--line);border-radius:16px}

.composer{
  padding:12px max(28px,calc((100% - 760px)/2)) 22px;
  border-top:0;
  background:linear-gradient(180deg,transparent,var(--paper) 34%);
  gap:9px;
  align-items:flex-end;
}
.composer textarea{
  min-height:48px;height:48px;
  padding:14px 18px;
  border-radius:22px;
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  font-size:15px;
}
.composer textarea:focus{
  background:var(--surface);
  border-color:var(--gold);
  box-shadow:0 0 0 3px var(--gold-soft);
}
.composer textarea::placeholder{color:var(--ink-4)}
.mic-btn,.at-btn{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:50%;
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--ink-3);
}
.mic-btn:hover,.at-btn:hover{border-color:var(--gold);color:var(--ink)}
#send{
  height:44px;min-width:76px;
  padding:0 21px;
  border-radius:var(--r-full);
  background:var(--accent);color:var(--accent-ink);
  font-size:13.5px;font-weight:600;
  box-shadow:0 8px 20px rgba(35,78,59,.18);
  transition:transform var(--dur-1) var(--ease),filter var(--dur-1) var(--ease);
}
#send:hover{transform:translateY(-1px);filter:brightness(1.05)}
#send:active{transform:none;filter:brightness(.96)}

/* page heads / moments ----------------------------------------- */
.page-head{
  width:100%;max-width:900px;
  margin:0 auto;
  padding:38px 0 18px;
  flex:0 0 auto;
}
.page-kicker{font-family:var(--font-mono);font-size:9px;letter-spacing:.2em;color:var(--gold)}
.page-head h1{
  margin:10px 0 8px;
  font-family:var(--font-display);
  font-size:clamp(36px,4vw,54px);
  font-weight:500;line-height:1.02;letter-spacing:-.04em;
}
.page-head p{max-width:520px;margin:0;color:var(--ink-2);font-size:14px;line-height:1.6}

.moments-view{
  overflow-y:auto;
  overscroll-behavior:contain;
  padding:0 clamp(24px,4vw,48px) 0;
}
.moments-body{
  width:100%;max-width:900px;
  margin:0 auto;
  padding:0 0 64px;
  flex:1 1 auto;min-height:0;
  overflow:visible;
}
.moments-body > *{max-width:none!important;margin-inline:0!important}
.moment-compose{
  width:100%;
  display:flex;align-items:center;gap:12px;
  min-height:62px;
  padding:0 19px;
  margin-bottom:18px;
  border:1px solid var(--line);
  border-radius:18px;
  background:var(--surface);
  color:var(--ink-3);
  text-align:left;
  box-shadow:var(--shadow-sm);
  transition:border-color var(--dur-1) var(--ease),box-shadow var(--dur-1) var(--ease);
}
.moment-compose:hover{border-color:var(--gold);box-shadow:var(--shadow-md)}
.moment-compose b{margin-left:auto;color:var(--gold);font-size:19px}
.moment{
  position:relative;
  padding:22px 23px 18px;
  margin-bottom:14px;
  border:1px solid var(--line);
  border-radius:22px;
  background:var(--surface);
  box-shadow:var(--shadow-sm);
  transition:border-color var(--dur-1) var(--ease),box-shadow var(--dur-1) var(--ease);
}
.moment:hover{border-color:color-mix(in srgb,var(--line) 60%,var(--gold));box-shadow:var(--shadow-md)}
.moment-head{gap:12px}
.moment-head .av{width:44px;height:44px;font-size:18px}
.moment-head b{font-family:var(--font-display);font-size:18px;font-weight:600}
.moment-head span{font-family:var(--font-mono);font-size:9.5px;color:var(--ink-4);letter-spacing:.04em}
.moment-text{
  margin:15px 0 4px;
  font-family:var(--font-display);
  font-size:clamp(20px,2.1vw,25px);
  line-height:1.38;letter-spacing:-.015em;
  max-width:680px;
}
.moment-art{
  position:absolute;top:19px;right:21px;
  font-size:21px;opacity:.55;
}
.moment-img{margin-top:14px;border-radius:16px;max-height:460px;object-fit:cover}
.moment .en-actions{
  margin-top:8px;
  gap:14px;
  opacity:1;
  pointer-events:auto;
  transform:none;
}
.moment .en-actions .tr-btn{
  border:0;
  background:none;
  padding:0;
  border-radius:0;
  color:var(--ink-3);
  font-family:var(--font-body);
  font-size:11.5px;
  letter-spacing:.02em;
}
.moment .en-actions .tr-btn:hover{color:var(--gold);background:none;border:0}
.moment-comments{
  margin-top:10px;padding-top:10px;
  border-top:1px solid var(--line-soft);
}
.moment-comment{padding:6px 0;font-size:13px;color:var(--ink-2)}
.moment-comment b{font-family:var(--font-display);font-size:14px;color:var(--ink)}
.comment-reply,.comment-like,.comment-del{font-size:10px;color:var(--ink-4)}
.moment-add input{
  height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-full);
  background:var(--surface-2);
  padding:0 14px;
}
.moment-add button{height:38px;padding:0 16px;border-radius:var(--r-full);background:var(--accent);color:var(--accent-ink);font-size:12.5px}
.moment-like{
  margin-top:12px;
  height:34px;padding:0 13px;
  border:1px solid var(--line);
  border-radius:var(--r-full);
  color:var(--ink-3);font-size:12px;
}
.moment-like.on{border-color:var(--red);color:var(--red);background:var(--red-soft)}
.moment-del{position:absolute;right:20px;bottom:18px;font-size:10px;color:var(--ink-4)}

/* study --------------------------------------------------------- */
.study-view,.mine-view{
  overflow-y:auto;
  overscroll-behavior:contain;
  padding:0 clamp(24px,4vw,48px) 56px;
}
.study-view > *,.mine-view > *{
  width:100%;
  max-width:900px!important;
  margin-inline:auto!important;
  flex:0 0 auto;
}
.study-head{
  position:relative;
  margin-bottom:16px;
  padding:30px 32px 28px;
  border:1px solid var(--line);
  border-radius:24px;
  background:
    radial-gradient(100% 120% at 100% 0%, rgba(176,141,87,.1), transparent 52%),
    var(--surface);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.study-kicker{font-family:var(--font-mono);font-size:9px;letter-spacing:.2em;color:var(--gold)}
.study-main{margin-top:10px;display:flex;align-items:flex-start;gap:2px;font-family:var(--font-display);color:var(--ink)}
.study-num{font-size:clamp(64px,8vw,112px);line-height:.82;letter-spacing:-.07em}
.study-pct{margin-top:8px;font-size:20px;color:var(--gold)}
.study-caption{margin-top:8px;color:var(--ink-2);font-size:13.5px}
.study-block{
  margin-bottom:12px;
  padding:4px 8px 8px 22px;
  border:1px solid var(--line);
  border-radius:20px;
  background:var(--surface);
  box-shadow:var(--shadow-sm);
}
.study-block-title{
  padding:15px 0 6px;
  font-family:var(--font-mono);font-size:9.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);
}
.study-row{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:15px 13px 15px 0;
  border-top:1px solid var(--line-soft);
  text-align:left;
}
.study-block-title + .study-row{border-top:0}
.study-row:hover{background:var(--surface-2);border-radius:12px}
.study-row b{display:block;font-family:var(--font-display);font-size:19px;font-weight:600;line-height:1.25}
.study-row span{display:block;margin-top:2px;color:var(--ink-3);font-size:11.5px}
.study-arrow{color:var(--gold);font-size:18px;flex:0 0 auto}
.study-saved{
  margin-top:8px;padding:4px 8px 8px 22px;
  border:1px solid var(--line);border-radius:20px;background:var(--surface);
}
.study-quote{
  display:block;width:100%;padding:14px 12px 14px 0;
  border-top:1px solid var(--line-soft);text-align:left;
}
.study-quote b{display:block;font-family:var(--font-display);font-size:16px;font-weight:500;line-height:1.4}
.study-quote span{display:block;margin-top:3px;color:var(--ink-3);font-size:12px}

/* mine ---------------------------------------------------------- */
.mine-profile{
  display:flex;align-items:center;gap:17px;
  margin-bottom:16px;
  padding:24px 26px;
  border:1px solid var(--line);
  border-radius:24px;
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(176,141,87,.08), transparent 55%),
    var(--surface);
  box-shadow:var(--shadow-sm);
  cursor:pointer;
  transition:border-color var(--dur-1) var(--ease),box-shadow var(--dur-1) var(--ease),transform var(--dur-1) var(--ease);
}
.mine-profile:hover{border-color:var(--gold);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.mine-avatar{
  width:64px;height:64px;flex:0 0 64px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--accent);color:var(--accent-ink);
  font-family:var(--font-display);font-size:26px;font-weight:600;
}
.mine-info b{display:block;font-family:var(--font-display);font-size:26px;font-weight:600;line-height:1.15}
.mine-info > span{display:block;margin-top:2px;color:var(--ink-3);font-size:12px}
.mine-badges{margin-top:8px;display:flex;gap:6px;flex-wrap:wrap}
.mine-badge{
  font-style:normal;font-family:var(--font-mono);font-size:9px;letter-spacing:.06em;
  padding:4px 8px;border:1px solid var(--line);border-radius:var(--r-full);color:var(--ink-3);
}
.mine-section{
  margin-bottom:14px;
  padding:4px 8px 8px 22px;
  border:1px solid var(--line);
  border-radius:20px;
  background:var(--surface);
  box-shadow:var(--shadow-sm);
}
.mine-section-title{
  padding:15px 0 6px;
  font-family:var(--font-mono);font-size:9.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);
}
.mine-row{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:15px 13px 15px 0;
  border-top:1px solid var(--line-soft);
  text-align:left;
}
.mine-section-title + .mine-row{border-top:0}
.mine-row:hover{background:var(--surface-2);border-radius:12px}
.mine-row b{display:block;font-size:14.5px;font-weight:600;letter-spacing:-.01em}
.mine-row span{display:block;margin-top:2px;color:var(--ink-3);font-size:11.5px}
.mine-row.danger b,.mine-row.danger span{color:var(--red)}
.mine-arrow{color:var(--gold);font-size:18px;flex:0 0 auto}

/* auth ---------------------------------------------------------- */
.auth-view{
  position:fixed!important;
  inset:0!important;
  z-index:100;
  display:grid!important;
  grid-template-columns:1.06fr .94fr;
  gap:22px;
  padding:22px;
  background:var(--bg);
  align-items:stretch!important;
  justify-content:stretch!important;
}
.auth-view[hidden]{display:none!important}
.auth-brand{
  position:relative;
  display:flex;flex-direction:column;justify-content:center;
  padding:clamp(34px,5vw,76px);
  border-radius:28px;
  background:
    radial-gradient(100% 90% at 100% 0%, rgba(176,141,87,.24), transparent 52%),
    linear-gradient(150deg,#2B5A45 0%,#1A3B2D 62%,#12291F 100%);
  color:#F7F1E5;
  overflow:hidden;
}
.auth-brand::after{
  content:"";position:absolute;right:-80px;bottom:-90px;
  width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(247,241,229,.12);
  box-shadow:0 0 0 40px rgba(247,241,229,.04),0 0 0 80px rgba(247,241,229,.03);
}
.auth-brand-mark{
  width:52px;height:52px;display:grid;place-items:center;
  border-radius:50%;background:rgba(247,241,229,.12);
  border:1px solid rgba(247,241,229,.22);
  font-family:var(--font-display);font-size:26px;
}
.auth-brand-kicker{margin-top:26px;font-family:var(--font-mono);font-size:9px;letter-spacing:.2em;color:#D8BE8E}
.auth-brand-title{
  margin:14px 0 16px;
  font-family:var(--font-display);
  font-size:clamp(38px,4.6vw,62px);
  font-weight:500;line-height:1.02;letter-spacing:-.04em;
}
.auth-brand-copy{max-width:390px;margin:0;color:rgba(247,241,229,.72);font-size:14px;line-height:1.75}
.auth-brand-foot{margin-top:38px;font-family:var(--font-mono);font-size:8.5px;letter-spacing:.18em;color:rgba(247,241,229,.4)}
.auth-card{
  width:min(420px,100%);
  margin:auto;
  padding:clamp(26px,3.4vw,38px);
  border:1px solid var(--line);
  border-radius:26px;
  background:var(--paper);
  box-shadow:var(--shadow-md);
}
.auth-kicker{font-family:var(--font-mono);font-size:9px;letter-spacing:.18em;color:var(--gold)}
.auth-title{margin:12px 0 4px;font-family:var(--font-display);font-size:34px;font-weight:600;letter-spacing:-.03em}
.auth-subtitle{margin:0 0 22px;color:var(--ink-3);font-size:13px}
.auth-view .auth-input{
  width:100%;height:48px;
  margin-bottom:10px;padding:0 15px;
  border:1px solid transparent;
  border-radius:12px;
  background:var(--surface-2);
  color:var(--ink);font-size:14px;
  transition:border-color var(--dur-1) var(--ease),background var(--dur-1) var(--ease),box-shadow var(--dur-1) var(--ease);
}
.auth-view .auth-input:focus{
  outline:none;background:var(--surface);
  border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-soft);
}
.auth-primary{
  width:100%;height:48px;margin-top:6px;
  border-radius:12px;background:var(--accent);color:var(--accent-ink);
  font-weight:600;font-size:14px;
  transition:transform var(--dur-1) var(--ease),filter var(--dur-1) var(--ease);
}
.auth-primary:hover{transform:translateY(-1px);filter:brightness(1.04)}
.auth-link,.auth-skip{
  display:block;width:100%;margin-top:11px;
  font-size:12.5px;color:var(--ink-3);text-align:center;
}
.auth-link:hover,.auth-skip:hover{color:var(--ink)}
.auth-error{
  margin:2px 0 10px;padding:9px 11px;
  border-radius:10px;background:var(--red-soft);color:var(--red);
  font-size:11.5px;line-height:1.5;white-space:pre-wrap;
}

/* sheet & menus ------------------------------------------------ */
.sheet{
  width:min(780px,88vw);
  height:min(82dvh,800px);
  border-radius:26px;
  background:var(--paper);
  box-shadow:var(--shadow-lg);
}
.sheet::before{background:rgba(29,27,23,.32);backdrop-filter:blur(3px)}
.sheet-bar{height:62px;padding:0 24px;background:var(--paper)}
.sheet-title{font-size:18px;letter-spacing:-.02em}
.sheet-back{width:34px;height:34px;border-radius:50%}
.sheet-body{padding:22px 26px 30px;background:var(--paper)}
.sheet-body > .rv-card{
  padding:20px 22px;margin-bottom:12px;
  border:1px solid var(--line);
  border-radius:18px;
  background:var(--surface);
  box-shadow:var(--shadow-sm);
}
.sheet-body h4{font-family:var(--font-display);font-size:19px;letter-spacing:-.02em;text-transform:none;color:var(--ink)}
.me-field{margin-bottom:14px}
.me-field > span{font-family:var(--font-mono);font-size:8.5px;letter-spacing:.12em;color:var(--ink-4)}
.me-field input,.settings-select{
  height:44px;border:1px solid var(--line);border-radius:11px;background:var(--surface-2);
}
.me-field input:focus,.settings-select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-soft);background-color:var(--surface)}
.rw-use{height:44px;border-radius:12px;background:var(--accent);color:var(--accent-ink);font-weight:600}
.rw-ghost{height:40px;border:1px solid var(--line);border-radius:11px;color:var(--ink-2);background:var(--surface)}
.rw-ghost:hover{border-color:var(--gold);color:var(--ink)}

.action-sheet .as-panel,.as-panel{
  border:1px solid var(--line);
  border-radius:20px;
  background:var(--surface);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
.as-panel button{padding:14px 18px;font-size:14px}
.as-panel button:hover{background:var(--surface-2)}

/* small refinements ------------------------------------------- */
::selection{background:var(--gold-soft);color:var(--ink)}
html[data-theme="dark"] ::selection{background:#3A3020;color:var(--ink)}
button{transition:background var(--dur-1) var(--ease),color var(--dur-1) var(--ease),border-color var(--dur-1) var(--ease),transform var(--dur-1) var(--ease)}
button:active{transform:scale(.985)}

/* responsive -------------------------------------------------- */
@media (max-width:1100px){
  :root{--rail-w:78px;--list-w:330px}
  .welcome-inner{padding-inline:42px}
  .welcome-title{font-size:clamp(40px,5.4vw,60px)}
}
@media (max-width:900px){
  :root{--rail-w:72px;--list-w:300px}
  .rail-word{display:none}
  .rail-mark{width:40px;height:40px;font-size:21px}
  .tabbar .tab{height:58px}
  .welcome-inner{padding:36px 30px}
  .welcome-cards{grid-template-columns:1fr}
  .welcome-card{min-height:96px}
  .auth-view{grid-template-columns:1fr;padding:14px}
  .auth-brand{display:none}
  .auth-card{width:min(400px,100%)}
  .chat{padding-inline:24px}
  .composer{padding-inline:24px}
  .list-bar .who .name{font-size:27px}
}
@media (max-width:780px){
  :root{--rail-w:66px;--list-w:280px;--bar-h:84px}
  .tabbar{padding:18px 9px 14px}
  .tabbar .tab{height:54px;border-radius:13px}
  .tabbar .tab .tab-label{font-size:9px}
  .rail-brand{padding-bottom:16px}
  .list-bar{padding:14px 12px 10px 17px}
  .list-bar .who .name{font-size:25px}
  .list-kicker{font-size:8px}
  .list-bar .who .sub{font-size:10.5px}
  .pal-row{padding:10px 11px;min-height:70px}
  .pal-row .av{width:41px;height:41px;font-size:17px}
  .welcome-title{font-size:clamp(34px,7vw,48px)}
  .welcome-sub{font-size:13px}
  .chat-view .bar{padding:0 18px}
  .chat-view .who.center .name{font-size:20px}
  .chat-avatar{width:38px;height:38px;flex:0 0 38px;font-size:17px;margin-right:10px}
  .chat{padding-inline:18px}
  .composer{padding-inline:18px}
  .page-head{padding:28px 0 14px}
  .moments-body{padding-inline:0}
  .study-view,.mine-view{padding-inline:20px}
  .moments-view{padding-inline:20px}
  .sheet{width:calc(100vw - 20px);height:86dvh}
}
@media (hover:none){
  .tools,.tools-right,.moment .en-actions{opacity:1;pointer-events:auto;transform:none}
}

/* Very narrow viewports happen at high zoom levels (or a 720px window zoomed
   to 200%). Stack the composer controls instead of letting them spill out. */
@media (max-width:640px){
  .composer{
    flex-wrap:wrap;
    margin-inline:14px;
    padding:10px 12px;
  }
  .composer textarea{
    flex:1 1 100%;
    min-width:0;
    order:-1;
    margin-bottom:2px;
  }
  .composer .at-btn{display:none}
  .composer #send{margin-left:auto}
}

/* ===========================================================
   v4 — editorial, no chrome
   Rules are separated by type, spacing and one strong vertical
   accent (the rail) instead of cards, borders and dividers.
   =========================================================== */

:root{
  --rail-w:76px;
  --list-w:320px;
  --bar-h:68px;
  --measure:720px;
  --rail-bg:#1B3A2C;
  --rail-bg-2:#142C21;
  --rail-ink:rgba(248,243,233,.52);
  --rail-ink-on:#F8F3E9;
  --rail-hover:rgba(248,243,233,.05);
  --rail-on:rgba(248,243,233,.14);
  --rail-ink-hover:rgba(248,243,233,.8);
}
[data-theme="dark"]{
  --rail-bg:#10241A;
  --rail-bg-2:#0B1A12;
  --rail-ink:rgba(241,235,221,.5);
  --rail-ink-on:#F5EEDF;
  --rail-hover:rgba(241,235,221,.05);
  --rail-on:rgba(241,235,221,.14);
  --rail-ink-hover:rgba(241,235,221,.8);
}

html,body{background:var(--paper)}

/* ---------- rail: one dark, quiet anchor ---------------- */
.tabbar{
  background:linear-gradient(180deg,var(--rail-bg),var(--rail-bg-2));
  border-right:0;
  padding:22px 10px 16px;
  gap:3px;
}
html.electron-shell .tabbar{padding-top:40px}
.rail-brand{padding:2px 0 20px;gap:6px}
.rail-mark{
  width:38px;height:38px;
  border:1px solid rgba(248,243,233,.25);
  background:transparent;
  color:#F1E7D3;
  font-size:20px;
  box-shadow:none;
}
.rail-word{display:none}
.tabbar .tab{
  height:50px;
  border-radius:10px;
  color:var(--rail-ink);
}
.tabbar .tab:hover{background:var(--rail-hover);color:var(--rail-ink-hover)}
.tabbar .tab.on{background:transparent;color:var(--rail-ink-on)}
.tabbar .tab.on:hover{background:var(--rail-hover)}
.tabbar .tab .tab-label{font-size:9.5px;letter-spacing:.06em}
#tabMine::before{display:none}

/* ---------- list: paper, no divider --------------------- */
.list-view{background:var(--paper-2);border-right:0}
.list-bar{
  height:var(--bar-h);
  padding:0 12px 0 18px;
  align-items:center;
  border-bottom:0;
  background:var(--paper-2);
}
.bar::after,.list-bar::after{display:none}
.list-bar .who .name{
  font-size:22px;
  line-height:1.15;
  letter-spacing:-.03em;
}
.list-actions{gap:2px;margin-top:0}
.plus-btn{width:32px;height:32px;color:var(--ink-3)}
.plus-btn:hover{background:transparent;border:0;color:var(--ink)}
.rows{padding:2px 10px 18px;background:transparent}
.pal-row{
  min-height:56px;
  padding:7px 9px;
  margin:0;
  border:0;
  border-radius:9px;
  background:transparent;
  box-shadow:none;
}
.pal-row:hover{
  background:color-mix(in srgb,var(--surface) 54%,transparent);
  border:0;
  transform:none;
  box-shadow:none;
}
.pal-row .av{
  width:36px;height:36px;
  font-size:15px;
  border:0;
  box-shadow:none;
}
.pal-top b{font-size:14px;font-weight:600}
.pal-top span{font-size:9px}
.pal-last{margin-top:1px;font-size:12px;line-height:1.4}
.list-menu{border:0;box-shadow:var(--shadow-md)}
.list-menu button{padding:9px 10px;font-size:13px}

/* ---------- welcome: an address book, not cards --------- */
.welcome-view{
  background:var(--paper);
}
.welcome-inner{
  width:100%;max-width:760px;
  margin:0 auto;
  padding:clamp(46px,7vh,84px) clamp(26px,4vw,48px) 40px;
}
.welcome-kicker{font-size:9px;letter-spacing:.22em;color:var(--gold)}
.welcome-title{
  margin:12px 0 10px;
  font-size:clamp(38px,4.6vw,56px);
  line-height:1.03;
}
.welcome-sub{max-width:420px;font-size:13px;line-height:1.65;color:var(--ink-3)}
.welcome-cards{
  display:flex;flex-direction:column;gap:0;
  margin:22px 0 16px;
}
.welcome-card{
  display:flex;align-items:center;gap:11px;
  width:100%;min-height:50px;
  padding:7px 7px;
  border:0;border-radius:9px;
  background:transparent;
  box-shadow:none;
  text-align:left;
}
.welcome-card:hover{
  background:var(--surface-2);
  border:0;
  transform:none;
  box-shadow:none;
}
.welcome-avatar{width:32px;height:32px;flex:0 0 32px;font-size:14px}
.welcome-card-body{display:flex;align-items:baseline;gap:9px;min-width:0;flex:1}
.welcome-card-body b{display:inline;font-size:16px;line-height:1.2;white-space:nowrap}
.welcome-card-body span{
  display:inline;margin:0;
  font-size:12px;line-height:1.4;color:var(--ink-3);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.welcome-card i{
  margin-left:auto;
  color:var(--ink-4);font-size:13px;
  opacity:0;transform:translateX(-3px);
  transition:opacity var(--dur-1) var(--ease),transform var(--dur-1) var(--ease);
}
.welcome-card:hover i{opacity:1;transform:none;color:var(--gold)}
.welcome-hint{
  margin:2px 0 0 39px;
  font-size:11.5px;
  color:var(--ink-4);
}
.pal-row.locked{opacity:.52}
.pal-row.locked:hover{background:transparent;opacity:.72}
.welcome-prompt{
  display:block;
  padding-top:14px;
  border-top:0;
}
.welcome-prompt-label{font-size:8.5px;letter-spacing:.2em}
.welcome-prompt p{
  max-width:540px;
  margin:5px 0 12px;
  font-size:19px;line-height:1.4;
}
.welcome-cta{height:36px;padding:0 15px;font-size:12.5px;box-shadow:none}

/* ---------- page heads: type only ----------------------- */
.page-head{
  max-width:var(--measure);
  padding:28px 0 12px;
}
.page-kicker{display:none}
.page-head h1{
  margin:0 0 4px;
  font-size:34px;line-height:1.05;letter-spacing:-.035em;
}
.page-head p{font-size:13px;color:var(--ink-3)}

/* ---------- moments: a feed, no cards ------------------- */
.moments-view{
  padding:0 clamp(24px,4vw,40px) 0;
  background:var(--paper);
}
.moments-body{
  max-width:var(--measure);
  padding:0 0 40px;
}
.moments-body > *{max-width:none!important;margin-inline:0!important}
.moment-compose{
  min-height:40px;height:40px;
  padding:0 7px;
  margin-bottom:22px;
  border:0;border-radius:8px;
  background:transparent;
  color:var(--ink-3);
  box-shadow:none;
}
.moment-compose:hover{border:0;background:var(--surface-2);box-shadow:none}
.moment-compose b{font-size:17px;color:var(--gold)}
.moment{
  padding:0;
  margin:0 0 30px;
  border:0;border-radius:0;
  background:transparent;
  box-shadow:none;
}
.moment:hover{border:0;box-shadow:none}
.moment-head{gap:9px}
.moment-head .av{width:32px;height:32px;font-size:13px}
.moment-head b{font-family:var(--font-body);font-size:14px;font-weight:600}
.moment-head span{font-size:9px}
.moment-text{
  margin:8px 0 0;
  max-width:640px;
  font-size:17.5px;line-height:1.5;letter-spacing:-.005em;
}
.moment .en-actions{margin-top:5px;gap:12px}
.moment .en-actions .tr-btn{font-size:10.5px;color:var(--ink-4)}
.moment-comments{
  margin-top:8px;padding-top:0;
  border-top:0;
}
.moment-comment{padding:3px 0;font-size:12.5px;color:var(--ink-2)}
.moment-comment b{font-family:var(--font-body);font-size:12.5px;font-weight:600}
.comment-reply,.comment-like,.comment-del{font-size:10px;color:var(--ink-4)}
.moment-add{gap:7px;margin-top:8px}
.moment-add input{
  max-width:420px;
  height:30px;
  padding:0 2px;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
  background:transparent;
  font-size:12.5px;
}
.moment-add input:focus{border-bottom-color:var(--gold);outline:none}
.moment-add button{height:30px;padding:0 4px;border:0;border-radius:0;background:none;color:var(--accent);font-size:11.5px;font-weight:600}
.moment-actions{
  display:flex;align-items:center;gap:16px;
  margin-top:6px;
}
.moment-like{
  margin-top:0;height:auto;padding:0;
  border:0;border-radius:0;background:none;
  color:var(--ink-3);font-size:11.5px;
}
.moment-like.on{background:none;color:var(--red)}
.moment-comment-toggle{
  padding:0;border:0;background:none;
  color:var(--ink-3);font-size:11.5px;
}
.moment-comment-toggle:hover{color:var(--ink)}
.moment-del{
  padding:0;border:0;background:none;
  font-size:10.5px;color:var(--ink-4);
}
.moment-add[hidden]{display:none!important}
.moment-add{margin-top:8px}
.moment-art{top:0;right:0;font-size:15px;opacity:.4}
.moment-img{margin-top:10px;border-radius:8px;max-height:400px}

/* ---------- study / mine: lists, not boxes -------------- */
.study-view,.mine-view{
  padding:0 clamp(24px,4vw,40px) 40px;
  background:var(--paper);
}
.study-view > *,.mine-view > *{
  max-width:var(--measure)!important;
  margin-inline:auto!important;
}
.study-head{
  margin:0 0 8px;
  padding:0 0 12px;
  border:0;border-radius:0;
  background:none;box-shadow:none;
  overflow:visible;
}
.study-kicker{display:none}
.study-main{margin:0;display:flex;align-items:baseline;gap:12px}
.study-num{font-size:76px;line-height:.9;letter-spacing:-.055em}
.study-pct{margin-top:0;font-size:16px;color:var(--gold)}
.study-caption{margin-top:4px;font-size:12.5px;color:var(--ink-3)}
.study-block,.study-saved{
  margin:0;padding:0;
  border:0;border-radius:0;
  background:none;box-shadow:none;
}
.study-block-title{
  padding:16px 6px 3px;
  font-family:var(--font-mono);
  font-size:9px;font-weight:500;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-3);
}
.study-row{
  width:100%;
  min-height:42px;
  padding:6px 7px;
  border:0;
  border-radius:7px;
  gap:12px;
}
.study-block-title + .study-row{border-top:0}
.study-row:hover{background:var(--surface-2);border-radius:7px}
.study-row b{
  font-family:var(--font-body);
  font-size:14px;font-weight:600;line-height:1.25;
}
.study-row span{margin-top:1px;font-size:11px}
.study-arrow{font-size:13px;color:var(--ink-4)}
.study-quote{padding:6px 7px;border:0;border-radius:7px}
.study-quote:hover{background:var(--surface-2)}
.study-quote b{font-size:14px;line-height:1.35}
.study-quote span{font-size:11px}

.mine-profile{
  margin:0 0 4px;
  padding:0 0 6px;
  gap:13px;
  border:0;border-radius:0;
  background:none;box-shadow:none;
}
.mine-profile:hover{border:0;box-shadow:none;transform:none}
.mine-avatar{
  width:50px;height:50px;flex:0 0 50px;
  background:var(--surface-2);
  color:var(--accent);
  font-size:21px;
}
.mine-info b{font-size:21px;line-height:1.15}
.mine-info > span{font-size:11.5px;margin-top:1px}
.mine-badges{margin-top:4px;gap:4px}
.mine-badge{font-size:8.5px;padding:2px 6px}
.mine-section{
  margin:0;padding:0;
  border:0;border-radius:0;
  background:none;box-shadow:none;
}
.mine-section-title{
  padding:16px 6px 3px;
  font-family:var(--font-mono);
  font-size:9px;font-weight:500;letter-spacing:.12em;
  text-transform:uppercase;color:var(--ink-3);
}
.mine-row{
  width:100%;
  min-height:42px;
  padding:6px 7px;
  border:0;
  border-radius:7px;
  gap:12px;
}
.mine-section-title + .mine-row{border-top:0}
.mine-row:hover{background:var(--surface-2);border-radius:7px}
.mine-row b{font-size:14px;font-weight:600}
.mine-row span{margin-top:1px;font-size:11px}
.mine-arrow{font-size:13px;color:var(--ink-4)}
/* Preferences are a compact 3-column grid instead of five stacked rows, so
   the mine page still fits a laptop screen without scrolling. */
.mine-pref-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0 6px;
}
.mine-pref-grid .mine-row{
  min-height:44px;
  padding:6px 8px;
  align-items:flex-start;
}
.mine-pref-grid .mine-row.wide{grid-column:span 2}
.mine-pref-grid .mine-arrow{display:none}
.mine-pref-grid .mine-row b{font-size:13.5px}
.mine-pref-grid .mine-row span{font-size:10.5px}

/* ---------- chat: flat bubbles, quiet header ------------ */
.chat-view{background:var(--paper)}
.chat-view .bar{
  position:relative;
  z-index:5;
  height:var(--bar-h);
  padding:0 20px;
  border-bottom:0;
  background:var(--paper);
  backdrop-filter:none;
}
.chat-view .bar::after{
  content:'';
  display:block;
  position:absolute;
  left:0;right:0;bottom:-28px;
  height:28px;
  background:linear-gradient(var(--paper) 10%,transparent);
  pointer-events:none;
  z-index:2;
}
.chat-avatar{
  width:36px;height:36px;flex:0 0 36px;
  margin-right:10px;
  font-size:16px;
}
.chat-view .who.center .name{font-size:18px;line-height:1.15}
.chat-view .who.center .sub{margin-top:2px;font-size:10.5px}
.chat-view .more{width:32px;height:32px}
.chat{
  padding:18px max(20px,calc((100% - 680px)/2)) 12px;
  background:var(--paper);
}
.stamp{margin:4px 0 16px;font-size:9px}
.row{gap:9px;margin-bottom:16px}
.col{max-width:min(78%,600px)}
.av{width:30px;height:30px;font-size:12px;border:0;box-shadow:none}
.bubble{
  padding:10px 14px;
  border:0;
  border-radius:16px;
  background:var(--surface-2);
  box-shadow:none;
  font-size:14.5px;line-height:1.55;
}
.row.ai .bubble{
  font-family:var(--font-display);
  font-size:15.5px;
  border-bottom-left-radius:5px;
}
.row.me .bubble{
  background:var(--accent);
  border-color:transparent;
  border-bottom-right-radius:5px;
  box-shadow:none;
}
.sender-name{font-size:8.5px;margin-bottom:4px}
.tr-btn,.chip{
  border:0;
  border-radius:0;
  background:none;
  padding:2px 0;
  color:var(--ink-4);
  font-size:10.5px;
}
.tr-btn:hover,.chip:hover{border:0;background:none;color:var(--ink)}
.chip .dot{background:var(--gold)}
.tr{background:var(--surface-2);border:0;border-radius:8px;font-size:12.5px;color:var(--ink-2)}
.fb{background:var(--surface-2);border:0;border-radius:10px}
.composer{
  min-height:54px;
  margin:0 20px 16px;
  padding:6px 6px 6px 12px;
  align-items:center;
  border:0;
  border-radius:18px;
  background:var(--surface-2);
  box-shadow:none;
  gap:6px;
}
.composer textarea{
  min-height:42px;
  height:auto;
  max-height:168px;
  padding:10px 0;
  border:0;
  border-radius:0;
  background:none;
  box-shadow:none;
  overflow-y:hidden;
  font-size:14.5px;
  line-height:1.5;
}
.composer textarea:focus{background:none;border:0;box-shadow:none}
.composer textarea::placeholder{color:var(--ink-4)}
.mic-btn,.at-btn{
  width:34px;height:34px;flex:0 0 34px;
  border:0;
  background:transparent;
  color:var(--ink-3);
}
.mic-btn:hover,.at-btn:hover{border:0;background:transparent;color:var(--gold)}
#send{
  height:36px;min-width:62px;
  padding:0 16px;
  border-radius:14px;
  font-size:12.5px;
  box-shadow:none;
}
#send:hover{transform:none;filter:brightness(1.05)}
#send:active{transform:none;filter:brightness(.97)}

/* ---------- auth: a clean split, no card ---------------- */
.auth-view{padding:0;gap:0;grid-template-columns:1.04fr .96fr}
.auth-brand{
  border-radius:0;
  padding:clamp(40px,6vw,88px);
}
.auth-card{
  width:min(360px,100%);
  margin:auto;
  padding:0 clamp(28px,5vw,56px);
  border:0;
  border-radius:0;
  background:transparent;
  box-shadow:none;
}
.auth-title{font-size:30px;margin:10px 0 2px}
.auth-subtitle{margin-bottom:20px;font-size:12.5px}
.auth-view .auth-input{
  height:44px;
  margin-bottom:8px;
  border:0;
  border-radius:8px;
  background:var(--surface-2);
  font-size:13.5px;
}
.auth-primary{height:44px;border-radius:8px;font-size:13.5px;box-shadow:none}
.auth-link,.auth-skip{font-size:12px;margin-top:8px}

/* ---------- sheets: fewer internals, more air ----------- */
.sheet{
  width:min(720px,90vw);
  border:0;
  border-radius:18px;
  box-shadow:var(--shadow-lg);
}
.sheet::before{background:rgba(20,28,23,.34)}
.sheet-bar{height:56px;padding:0 20px;border-bottom:0;background:var(--paper)}
.sheet-title{font-size:16px}
.sheet-back{width:30px;height:30px}
.sheet-body{padding:6px 24px 26px;background:var(--paper)}
.sheet-body > .rv-card{
  padding:12px 0 16px;
  margin:0;
  border:0;
  border-radius:0;
  background:none;
  box-shadow:none;
}
.sheet-body h4{font-family:var(--font-body);font-size:15px;font-weight:600;text-transform:none;color:var(--ink);margin:0 0 8px}
.me-field{margin-bottom:11px}
.me-field > span{font-size:9.5px;letter-spacing:.06em;color:var(--ink-3);text-transform:none}
.me-field input,.settings-select{
  height:40px;
  border:0;
  border-radius:8px;
  background:var(--surface-2);
}
.me-field input:focus,.settings-select:focus{border:0;box-shadow:0 0 0 2px var(--gold-soft);background-color:var(--surface)}
.rw-use{height:40px;border-radius:8px}
.rw-ghost{height:36px;border:0;border-radius:8px;background:var(--surface-2)}
.model-chip{border:0;background:var(--surface-2);border-radius:var(--r-full)}
.model-chip:hover{border:0;background:var(--gold-soft);color:var(--gold)}
.model-chip.on{border:0;background:var(--accent);color:var(--accent-ink)}
.action-sheet .as-panel,.as-panel{border:0;border-radius:14px;box-shadow:var(--shadow-lg)}
.menu{border:0;box-shadow:var(--shadow-md)}

/* ---------- responsive ---------------------------------- */
@media (max-width:1100px){
  :root{--rail-w:72px;--list-w:308px}
  .welcome-inner{padding-inline:40px}
}
@media (max-width:900px){
  :root{--rail-w:68px;--list-w:296px}
  .welcome-cards{display:flex}
  .auth-view{grid-template-columns:1fr}
  .auth-brand{display:none}
  .auth-card{padding:0 24px}
  .chat{padding-inline:18px}
  .composer{margin-inline:14px}
  .study-view,.mine-view{padding-inline:24px}
  .moments-view{padding-inline:24px}
}
@media (max-width:640px){
  .composer{flex-wrap:wrap;padding:8px 10px}
  .composer textarea{flex:1 1 100%;order:-1;margin-bottom:2px}
  .composer .at-btn{display:none}
  .composer #send{margin-left:auto}
  .welcome-card-body span{display:none}
}

/* no scrollbars anywhere — content still scrolls normally */
*{scrollbar-width:none!important;-ms-overflow-style:none!important}
*::-webkit-scrollbar{width:0!important;height:0!important;display:none!important}

/* ===========================================================
   v5 — white / green / red
   One neutral paper, one green accent, red only for danger.
   The theme can be system, light or dark; the switch lives in 我的.
   =========================================================== */

:root{
  --bg:#F4F6F5;
  --paper:#FFFFFF;
  --paper-2:#F7F9F8;
  --surface:#FFFFFF;
  --surface-2:#F2F5F3;
  --line:#E7EBE8;
  --line-soft:#EFF2F0;
  --ink:#14201A;
  --ink-2:#4C5851;
  --ink-3:#7E8A83;
  --ink-4:#AEB8B1;
  --accent:#1F6B4A;
  --accent-ink:#FFFFFF;
  --accent-soft:#E8F3EC;
  --gold:var(--accent);
  --gold-soft:var(--accent-soft);
  --red:#C0392B;
  --red-soft:#FBEAE7;
  --amber:var(--accent);
  --amber-soft:var(--accent-soft);
  --bubble:#FFFFFF;
  --rail-bg:#FFFFFF;
  --rail-bg-2:#FAFBFA;
  --rail-ink:#8A958E;
  --rail-ink-on:var(--accent);
  --rail-ink-hover:#2C5C45;
  --rail-hover:#F2F5F3;
  --rail-on:transparent;
}
[data-theme="dark"]{
  --bg:#0E1210;
  --paper:#151A17;
  --paper-2:#1B211D;
  --surface:#1B211D;
  --surface-2:#232A25;
  --line:#2A332C;
  --line-soft:#232A25;
  --ink:#F1F5F1;
  --ink-2:#B8C2BB;
  --ink-3:#8B978F;
  --ink-4:#5F6B63;
  --accent:#78C69C;
  --accent-ink:#0C1712;
  --accent-soft:#1F3329;
  --gold:var(--accent);
  --gold-soft:var(--accent-soft);
  --red:#E57367;
  --red-soft:#3A211D;
  --amber:var(--accent);
  --amber-soft:var(--accent-soft);
  --bubble:#1B211D;
  --rail-bg:#151A17;
  --rail-bg-2:#151A17;
  --rail-ink:#7E8A83;
  --rail-ink-on:var(--accent);
  --rail-ink-hover:#B7D6C5;
  --rail-hover:#232A25;
  --rail-on:transparent;
  color-scheme:dark;
}

.app{background:var(--paper)}
.list-view,.list-bar,.rows{background:var(--paper-2)}
.moments-view,.study-view,.mine-view,.welcome-view,.chat-view,.chat{background:var(--paper)}

/* rail: white, green active */
.tabbar{
  background:linear-gradient(180deg,var(--rail-bg),var(--rail-bg-2));
  border-right:0;
}
.rail-mark{
  background:var(--accent);
  color:var(--accent-ink);
  border:0;
  box-shadow:0 6px 18px rgba(31,107,74,.16);
}
.rail-word{display:none}
.tabbar .tab{color:var(--rail-ink)}
.tabbar .tab:hover{background:var(--rail-hover);color:var(--rail-ink-hover)}
.tabbar .tab.on,
.tabbar .tab.on:hover{background:transparent;color:var(--rail-ink-on)}
#tabMine::before{display:none}

/* one avatar language: neutral, with green only for the current user */
.av,.welcome-avatar,.chat-avatar{
  background:var(--surface-2)!important;
  color:var(--ink-2)!important;
  border:0!important;
  box-shadow:none!important;
}
.av.me,.chat-avatar.me{
  background:var(--accent)!important;
  color:var(--accent-ink)!important;
}
.mine-avatar{
  background:var(--accent-soft)!important;
  color:var(--accent)!important;
}

/* theme entry in the rail, above 我的 */
.rail-theme-wrap{
  position:relative;
  z-index:70;
  width:100%;
  margin-top:auto;
}
#tabMine{margin-top:0}
.rail-theme-wrap .rail-theme{width:100%}
.rail-theme-wrap .rail-theme[aria-expanded="true"]{
  background:var(--rail-hover);
  color:var(--rail-ink-hover);
}
.rail-theme-pop{
  position:absolute;
  left:calc(100% + 10px);
  bottom:0;
  min-width:150px;
  display:flex;flex-direction:column;gap:2px;
  padding:6px;
  border-radius:12px;
  background:var(--surface);
  box-shadow:var(--shadow-md);
}
.rail-theme-pop[hidden]{display:none!important}
.rail-theme-pop button{
  padding:8px 10px;
  border:0;
  border-radius:7px;
  background:none;
  text-align:left;
  font-family:var(--font-body);
  font-size:12.5px;
  color:var(--ink-3);
  cursor:pointer;
}
.rail-theme-pop button:hover{background:var(--surface-2);color:var(--ink)}
.rail-theme-pop button.on{background:var(--accent-soft);color:var(--accent);font-weight:600}

/* menu: only chat actions; hidden entries really disappear */
.menu button[hidden]{display:none!important}
.menu #reset{color:var(--red);margin-top:4px}
.menu #reset:hover{background:var(--red-soft);color:var(--red)}
.moment-del:hover{color:var(--red)}

/* placeholder reads clearly, and the composer is a centered single field */
.composer{align-items:center}
.composer textarea{
  min-height:42px;
  padding:10px 2px;
  line-height:1.5;
}
.composer textarea::placeholder{color:var(--ink-3);opacity:1}

/* hide the shell until the first view is ready (no inbox flash) */
html.booting .app{opacity:0}
html.booting body{background:var(--paper)}
.app{transition:opacity .18s ease}
@media (prefers-reduced-motion:reduce){
  .app{transition:none}
}

/* auth: remove the last warm highlight, keep the split green/white */
.auth-view{background:var(--paper)}
.auth-brand{
  background:
    radial-gradient(100% 90% at 100% 0%, rgba(255,255,255,.10), transparent 52%),
    linear-gradient(150deg,#24513D 0%,#183A2B 62%,#10281D 100%);
}
.auth-brand-kicker{color:rgba(247,241,229,.58)}

/* sheets: the remaining member/link rows also lose their dividers */
.prof-field,
.group-add-row{
  border:0!important;
  border-top:0!important;
  border-bottom:0!important;
  padding:8px 0;
}
.rv-card + .rv-card{margin-top:6px}

/* daily writing goal on the study page */
.study-goal{
  display:flex;align-items:center;gap:12px;
  margin:6px 0 0;
  max-width:520px;
  font-family:var(--font-body);
  font-size:12px;color:var(--ink-3);
}
.study-goal.done{color:var(--accent)}
.study-goal-bar{
  flex:1;max-width:220px;height:3px;
  border-radius:2px;background:var(--surface-2);
  overflow:hidden;
}
.study-goal-bar i{display:block;height:100%;border-radius:2px;background:var(--accent)}

/* notification settings rows: label left, state right, no boxes */
.notify-row{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:11px 8px;margin:0;
  border:0;border-radius:8px;
  background:none;
  text-align:left;
  font-family:var(--font-body);color:var(--ink);
}
.notify-row:hover{background:var(--surface-2)}
.notify-row span{font-size:13.5px;color:var(--ink)}
.notify-row b{font-size:11.5px;font-weight:600;color:var(--ink-4);letter-spacing:.01em}
.notify-row b.on{color:var(--accent)}

/* practice history filters: text tabs, no boxes */
.practice-tabs{
  display:flex;gap:20px;
  padding:2px 8px 12px;
}
.practice-tab{
  padding:2px 0;
  border:0;background:none;
  font-family:var(--font-body);
  font-size:12px;color:var(--ink-3);
}
.practice-tab:hover{color:var(--ink)}
.practice-tab.on{color:var(--accent);font-weight:600}

/* keyboard users get a clear ring; mouse clicks stay quiet */
button:focus-visible,a:focus-visible,[role="button"]:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}

/* keyboard cheatsheet */
.shortcut-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:18px;
  padding:10px 2px;
}
.shortcut-row span{font-size:13px;color:var(--ink-2)}
.shortcut-row b{
  font-family:var(--font-mono);
  font-size:10.5px;font-weight:500;
  color:var(--ink-3);text-align:right;
}

/* Short laptop screens: shave a few pixels per mine row so the SYSTEM
   section (shortcuts, about) stays visible without scrolling. */
@media (max-height:820px){
  .page-head{padding-top:20px}
  .mine-section-title{padding-top:10px}
  .mine-row{min-height:38px;padding-top:5px;padding-bottom:5px}
  .mine-pref-grid .mine-row{min-height:40px}
  .mine-profile{padding-bottom:0}
}

/* search results use the same flat-row language as the inbox */
.search-hit{
  border-bottom:0;
  border-radius:8px;
  padding:11px 9px;
}
.search-hit:hover,.search-hit.on{background:var(--surface-2)}
.search-hit.on .search-hit-name{color:var(--accent)}

/* search result count, quiet mono label */
.search-summary{
  padding:10px 9px 6px;
  font-family:var(--font-mono);
  font-size:9px;letter-spacing:.08em;
  color:var(--ink-4);
}

/* cards nested in the practice list use the same flat sheet style */
.practice-list .rv-card{
  padding:12px 0 16px;
  margin:0;
  border:0;border-radius:0;
  background:none;box-shadow:none;
}

/* search filters: same quiet text tabs as practice history */
.search-tabs{display:flex;gap:20px;padding:10px 9px 0}
.search-tab{
  padding:2px 0;border:0;background:none;
  font-family:var(--font-body);font-size:12px;color:var(--ink-3);
}
.search-tab:hover{color:var(--ink)}
.search-tab.on{color:var(--accent);font-weight:600}

/* search: optional grouping by conversation */
.search-group-toggle{
  margin-left:auto;
  padding:2px 0;border:0;background:none;
  font-family:var(--font-body);font-size:11.5px;color:var(--ink-4);
}
.search-group-toggle:hover{color:var(--ink)}
.search-group-toggle.on{color:var(--accent);font-weight:600}
.search-group{
  padding:14px 9px 4px;
  font-family:var(--font-mono);
  font-size:9px;letter-spacing:.08em;
  color:var(--ink-3);
}

/* welcome: one quiet line that the pen pals are AI */
.welcome-ai{
  max-width:470px;
  margin:10px 0 0;
  font-size:11.5px;line-height:1.6;
  color:var(--ink-4);
}

/* search start: recent queries as quiet pills */
.search-recents{padding:10px 9px 0}
.search-recents-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:0 2px 8px;
  font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;color:var(--ink-4);
}
.search-recents-clear{
  border:0;background:none;padding:0;
  font-family:var(--font-body);font-size:10.5px;color:var(--ink-4);
}
.search-recents-clear:hover{color:var(--ink)}
.search-recent-row{display:flex;flex-wrap:wrap;gap:6px}
.search-recent{
  border:0;border-radius:999px;
  padding:6px 11px;
  background:var(--surface-2);color:var(--ink-2);
  font-family:var(--font-body);font-size:12px;
}
.search-recent:hover{background:var(--line-soft);color:var(--ink)}

/* ---------- study: editorial sidebar + task column ---------- */
.study-layout{
  display:grid;
  grid-template-columns:minmax(238px,300px) minmax(0,1fr);
  gap:clamp(28px,4vw,56px);
  align-items:start;
}
.study-aside{
  position:sticky;top:18px;
  display:flex;flex-direction:column;gap:22px;
  min-width:0;
}
.study-maincol{min-width:0}
.study-aside .study-head{
  margin:0;padding:0 0 2px;
  border:0;background:none;box-shadow:none;
}
.study-aside .study-kicker{display:block;color:var(--ink-4)}
.study-aside .study-main{margin:8px 0 0;gap:6px}
.study-aside .study-num{font-size:clamp(72px,9vw,104px);line-height:.82}
.study-aside .study-pct{font-size:18px;color:var(--accent)}
.study-aside .study-caption{margin-top:6px;font-size:12.5px;line-height:1.5}
.study-aside .study-goal{
  display:block;margin:0;max-width:none;
}
.study-side-label{
  font-family:var(--font-mono);
  font-size:8.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-4);
}
.study-goal-value{
  display:inline-block;margin-top:5px;
  font-family:var(--font-display);font-size:31px;font-weight:500;line-height:1;
  color:var(--ink);
}
.study-goal-meta{
  display:inline-block;margin-left:8px;
  font-size:11px;color:var(--ink-3);
}
.study-goal-line{
  display:block;height:3px;margin-top:10px;
  border-radius:2px;background:var(--surface-2);overflow:hidden;
}
.study-goal-line i{display:block;height:100%;border-radius:2px;background:var(--accent)}
.study-side-link{
  position:relative;display:block;
  padding:5px 22px 5px 2px;
  border-radius:10px;
  cursor:pointer;
  transition:background var(--dur-1) var(--ease);
}
.study-side-link:hover{background:var(--surface-2)}
.study-side-link[hidden]{display:none}
.study-side-value{
  display:block;margin-top:5px;
  font-family:var(--font-display);font-size:24px;font-weight:500;line-height:1.15;
  color:var(--ink);
}
.study-cefr-level{font-size:30px;color:var(--accent)}
.study-side-sub{margin-top:4px;font-size:11.5px;line-height:1.5;color:var(--ink-3)}
.study-side-note{margin-top:6px;font-size:11.5px;line-height:1.5;color:var(--ink-3);max-width:238px}
.study-side-arrow{
  position:absolute;right:3px;top:18px;
  font-size:14px;color:var(--ink-4);
}
.study-side-link:hover .study-side-arrow{color:var(--accent)}
.study-maincol .study-block{margin-bottom:8px}
.study-maincol .study-block-title{padding-top:8px;color:var(--ink-4)}
.study-maincol .study-row{min-height:46px;padding:8px}
.study-maincol .study-row b{font-size:14.5px}
.study-maincol .study-saved{margin-top:4px}

@media (max-width: 860px){
  .study-layout{grid-template-columns:1fr;gap:18px}
  .study-aside{
    position:static;
    display:grid;grid-template-columns:1fr 1fr;gap:16px 22px;
  }
  .study-aside .study-head{grid-column:1/-1}
  .study-aside .study-goal{grid-column:1/-1}
}

/* two-column pages use a wider measure than long-form reading panes */
.study-view > .page-head,
.study-view > .study-layout,
.mine-view > .page-head,
.mine-view > .mine-layout{
  max-width:960px!important;
  padding-inline:0!important;
}

/* ---------- mine: identity sidebar + settings column ---------- */
.mine-layout{
  display:grid;
  grid-template-columns:minmax(238px,282px) minmax(0,1fr);
  gap:clamp(28px,4vw,56px);
  align-items:start;
}
.mine-aside{
  position:sticky;top:18px;
  display:flex;flex-direction:column;
  min-width:0;
}
.mine-maincol{min-width:0}
.mine-aside .mine-profile{
  display:flex;flex-direction:column;align-items:flex-start;
  gap:10px;
  margin:0 0 18px;padding:0 0 14px;
}
.mine-aside .mine-avatar{
  width:62px;height:62px;flex:0 0 62px;
  font-size:24px;
}
.mine-aside .mine-info b{font-size:24px;line-height:1.15}
.mine-aside .mine-info > span{font-size:11.5px;margin-top:2px}
.mine-aside .mine-badges{margin-top:6px}
.mine-side-label{
  font-family:var(--font-mono);
  font-size:8.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-4);
  padding:0 6px 4px;
}
.mine-quick{display:flex;flex-direction:column;margin-top:4px}
.mine-quick-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  padding:9px 7px;border-radius:8px;
  border:0;background:none;text-align:left;
}
.mine-quick-row:hover{background:var(--surface-2)}
.mine-quick-row span{font-size:12px;color:var(--ink-3)}
.mine-quick-row b{
  font-family:var(--font-display);font-size:18px;font-weight:500;
  color:var(--ink);white-space:nowrap;
}
.mine-side-cta{
  margin:14px 0 0 5px;align-self:flex-start;
  padding:6px 0;border:0;background:none;
  color:var(--accent);font-size:12.5px;font-weight:600;
}
.mine-side-cta:hover{text-decoration:underline;text-underline-offset:3px}
.mine-maincol .mine-section{margin-bottom:10px}
.mine-maincol .mine-section-title{padding-top:10px}
.mine-maincol .mine-row{min-height:44px}

@media (max-width: 860px){
  .mine-layout{grid-template-columns:1fr;gap:18px}
  .mine-aside{position:static}
  .mine-aside .mine-profile{flex-direction:row;align-items:center;padding-bottom:8px}
  .mine-quick{display:grid;grid-template-columns:1fr 1fr;gap:0 8px}
  .mine-quick .mine-side-label{grid-column:1/-1}
}

.study-write{
  align-self:flex-start;
  margin:2px 0 0 3px;
  padding:7px 0;
  border:0;background:none;
  color:var(--accent);
  font-family:var(--font-body);font-size:12.5px;font-weight:600;
}
.study-write:hover{text-decoration:underline;text-underline-offset:3px}

/* settings page: two balanced columns inside the main area */
.mine-maincol{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:0 30px;
  align-items:start;
}
.mine-col{min-width:0}
.mine-col .mine-section{margin-bottom:10px}
@media (max-width: 700px){
  .mine-maincol{grid-template-columns:1fr;gap:0}
}

/* media library */
.media-tabs{display:flex;gap:20px;padding:2px 8px 12px}
.media-tab{
  padding:2px 0;border:0;background:none;
  font-family:var(--font-body);font-size:12px;color:var(--ink-3);
}
.media-tab:hover{color:var(--ink)}
.media-tab.on{color:var(--accent);font-weight:600}
.media-list{display:flex;flex-direction:column}
.media-row{
  display:flex;align-items:center;gap:14px;
  padding:10px 6px;border-radius:10px;
}
.media-row:hover{background:var(--surface-2)}
.media-row img,.media-audio-icon{
  width:58px;height:58px;flex:0 0 58px;
  border-radius:10px;object-fit:cover;
  background:var(--surface-2);
}
.media-audio-icon{
  display:grid;place-items:center;
  color:var(--accent);font-size:21px;
}
.media-info{flex:1;min-width:0}
.media-info b{display:block;font-size:13.5px;font-weight:600;color:var(--ink)}
.media-info span{display:block;margin-top:3px;font-size:11px;color:var(--ink-3)}
.media-actions{display:flex;gap:1px;flex:0 0 auto;flex-wrap:wrap;justify-content:flex-end}
.media-action{
  padding:5px 7px;border:0;border-radius:6px;
  background:none;color:var(--ink-3);
  font-family:var(--font-body);font-size:11.5px;
}
.media-action:hover{background:var(--line-soft);color:var(--ink)}
.media-action.danger{color:var(--red)}

/* vocabulary review flashcard */
.vocab-review{padding:20px 18px 16px}
.vocab-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.vocab-top .study-kicker{display:block;color:var(--ink-4)}
.vocab-count{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.06em;color:var(--ink-4)}
.vocab-word{
  margin:16px 0 8px;
  font-family:var(--font-display);
  font-size:clamp(38px,7vw,58px);
  font-weight:500;line-height:1.05;letter-spacing:-.03em;
  color:var(--ink);
}
.vocab-meaning{font-size:14px;color:var(--ink-2);line-height:1.6;margin-bottom:4px}
.vocab-reveal{width:100%;margin-top:8px}
.vocab-actions{margin-top:10px}
.vocab-remove{
  display:block;margin:14px 0 0 auto;
  padding:4px 0;border:0;background:none;
  font-family:var(--font-body);font-size:11px;color:var(--ink-4);
}
.vocab-remove:hover{color:var(--red)}
.vocab-upcoming{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:7px 0}
.vocab-upcoming b{font-size:13.5px;font-weight:600;color:var(--ink)}
.vocab-upcoming span{font-family:var(--font-mono);font-size:9.5px;color:var(--ink-4)}
.vocab-summary{padding:24px 18px}

/* nested review cards should stay flat like the rest of the sheet */
.vocab-session .rv-card,
.vocab-session .vocab-summary{
  padding:16px 0 18px;
  margin:0;
  border:0;border-radius:0;
  background:none;box-shadow:none;
}

/* word source under the flashcard */
.vocab-source{
  margin:2px 0 8px;
  font-size:11px;line-height:1.5;color:var(--ink-4);
}

.vocab-source-link{cursor:pointer;color:var(--accent)}
.vocab-source-link:hover{text-decoration:underline;text-underline-offset:3px}

/* weekly vocabulary review sparkline */
.vocab-trend{
  display:flex;align-items:flex-end;gap:8px;
  height:64px;margin-top:12px;
}
.vocab-trend-col{
  flex:1;height:100%;
  display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:3px;
}
.vocab-trend-col i{
  width:100%;max-width:26px;min-height:3px;
  border-radius:3px;background:var(--surface-2);
}
.vocab-trend-col:last-child i{background:var(--accent)}
.vocab-trend-col b{font-size:9px;color:var(--ink-3)}
.vocab-trend-col span{font-family:var(--font-mono);font-size:8px;color:var(--ink-4)}

/* vocabulary: review / all tabs + source filters */
.vocab-tabs{display:flex;gap:20px;padding:2px 8px 12px}
.vocab-tab{
  padding:2px 0;border:0;background:none;
  font-family:var(--font-body);font-size:12px;color:var(--ink-3);
}
.vocab-tab:hover{color:var(--ink)}
.vocab-tab.on{color:var(--accent);font-weight:600}
.vocab-filters{display:flex;flex-wrap:wrap;gap:6px;padding:0 6px 12px}
.vocab-filter{
  padding:5px 10px;border:0;border-radius:999px;
  background:var(--surface-2);color:var(--ink-3);
  font-family:var(--font-body);font-size:11.5px;
}
.vocab-filter:hover{background:var(--line-soft);color:var(--ink)}
.vocab-filter.on{background:var(--accent-soft);color:var(--accent);font-weight:600}
.vocab-list{display:flex;flex-direction:column}
.vocab-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:11px 8px;border:0;border-radius:9px;background:none;
  text-align:left;
}
.vocab-row:hover{background:var(--surface-2)}
.vocab-row-main{min-width:0}
.vocab-row-main b{display:block;font-size:14px;font-weight:600;color:var(--ink)}
.vocab-row-main span{display:block;margin-top:2px;font-size:11.5px;color:var(--ink-3)}
.vocab-row-main em{
  display:block;margin-top:3px;max-width:420px;
  font-style:normal;font-size:10.5px;line-height:1.4;color:var(--ink-4);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.vocab-row-side{flex:0 0 auto;text-align:right}
.vocab-due,.vocab-next{
  display:inline-block;padding:2px 7px;border-radius:6px;
  font-style:normal;font-family:var(--font-mono);font-size:9px;
}
.vocab-due{background:var(--accent-soft);color:var(--accent)}
.vocab-next{color:var(--ink-4)}

/* media library: select mode */
.media-tabs{align-items:center}
.media-select-mode{
  margin-left:auto;
  padding:2px 0;border:0;background:none;
  font-family:var(--font-body);font-size:11.5px;color:var(--ink-4);
}
.media-select-mode:hover{color:var(--ink)}
.media-select-mode.on{color:var(--accent);font-weight:600}
.media-bulk{
  display:flex;align-items:center;gap:12px;
  padding:0 8px 10px;
  font-size:11.5px;color:var(--ink-3);
}
.media-bulk[hidden]{display:none}
.media-bulk .media-action[disabled]{opacity:.4}
.media-row.selecting{cursor:pointer}
.media-row.not-mine{cursor:default;opacity:.5}
.media-check{
  width:18px;height:18px;flex:0 0 18px;
  display:grid;place-items:center;
  border-radius:50%;border:1px solid var(--line);
  font-size:11px;color:var(--accent);
}
.media-check.on{background:var(--accent-soft);border-color:var(--accent)}

.media-summary{
  padding:0 9px 10px;
  font-family:var(--font-mono);font-size:9px;letter-spacing:.08em;
  color:var(--ink-4);
}
.media-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.media-tools .media-select-mode{margin-left:0}

.vocab-row{cursor:pointer}
.vocab-jump{
  display:block;margin-top:4px;
  padding:0;border:0;background:none;
  font-family:var(--font-body);font-size:10px;color:var(--accent);
}
.vocab-jump:hover{text-decoration:underline;text-underline-offset:2px}
.vocab-level-bar{
  display:flex;gap:3px;height:10px;margin-top:4px;
  border-radius:4px;overflow:hidden;background:var(--surface-2);
}
.vocab-level-bar i{display:block;height:100%;min-width:4px}
.vocab-level-bar .lv0{background:var(--line)}
.vocab-level-bar .lv1{background:var(--accent-soft)}
.vocab-level-bar .lv2{background:#A8C9B8}
.vocab-level-bar .lv3{background:#7FBFA0}
.vocab-level-bar .lv4{background:var(--accent)}
.vocab-level-bar .lv5{background:#183A2B}
.vocab-level-labels{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:7px;
  font-family:var(--font-mono);font-size:8.5px;color:var(--ink-4);
}

.media-source-filters{
  display:flex;flex-wrap:wrap;gap:6px;
  padding:0 9px 10px;
}
.media-source-filters[hidden]{display:none}
.media-filter{
  padding:5px 10px;border:0;border-radius:999px;
  background:var(--surface-2);color:var(--ink-3);
  font-family:var(--font-body);font-size:11.5px;
}
.media-filter:hover{background:var(--line-soft);color:var(--ink)}
.media-filter.on{background:var(--accent-soft);color:var(--accent);font-weight:600}

.weekly-copy{
  display:block;width:100%;
  margin:0 0 12px;
}

.mine-note{
  margin:2px 6px 14px;
  font-size:10.5px;line-height:1.6;color:var(--ink-4);
}

/* select arrow: keep it away from the right edge */
select.settings-select{
  appearance:none;
  -webkit-appearance:none;
  padding-right:36px;
  background-color:var(--surface-2);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%238A8A82' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:10px 6px;
}
select.settings-select:focus{background-color:var(--surface)}
.settings-hint{
  margin:-4px 0 10px;
  font-size:10.5px;line-height:1.55;color:var(--ink-4);
}