/* ============================================================
   Tasks — 專業待辦清單  |  styles.css
   ============================================================ */

/* ============================================================
   文青待辦 · design tokens
   霧灰綠(sage) / 宣紙墨黑(rice) / 茶褐(tea)  ×  宋體/黑體  ×  紙紋
   Component CSS below keeps using --c-* names; they alias to the
   文青 tokens so the whole app re-skins from this one layer.
   ============================================================ */
:root {
  /* fonts */
  --font-serif: "Noto Serif TC", "Songti TC", "Source Han Serif TC", serif;
  --font-serif-latin: "Spectral", "Noto Serif TC", Georgia, serif;
  --font-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --type-body: var(--font-serif);
  --type-display: var(--font-serif);
  --type-latin: var(--font-serif-latin);

  /* type scale (serif reads larger; bumped from the old sans scale) */
  --fs-xs: 12px; --fs-sm: 13px; --fs-base: 15px; --fs-md: 16px; --fs-lg: 19px; --fs-xl: 24px;
  --lh: 1.65;
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 20px;

  --radius: 14px; --radius-sm: 9px; --radius-lg: 20px; --radius-pill: 999px;
  --sidebar-w: 276px; --panel-w: 416px;

  --ease: cubic-bezier(.4,0,.2,1);
  --ease-soft: cubic-bezier(.33,0,.15,1);
  --spring: cubic-bezier(.34,1.56,.64,1);
  --d-fast: .16s; --d-med: .28s; --d-slow: .45s;
  --paper-on: 1;
  font-synthesis: none;

  /* shadows: 文青 leans on hairlines; only soft paper shadows for overlays */
  --shadow-sm: none;
  --shadow-md: 0 6px 20px -12px rgba(var(--paper-ink), .35);
  --shadow-lg: 0 18px 48px -24px rgba(var(--paper-ink), .45);

  /* ---- sage 霧灰綠 (default · light) ---- */
  --bg:#E9E4D6; --surface:#F4F0E5; --surface-2:#E2DCCB; --surface-3:#D8D1BD;
  --line:#CFC8B3; --line-soft:#DCD6C5;
  --ink:#34372C; --ink-2:#5E6350; --ink-3:#8C8E78;
  --accent:#6E7B53; --accent-deep:#56603F; --accent-soft:#DCDFC6; --on-accent:#F6F4E9;
  --prio-high:#A8553B; --prio-medium:#B08A3E; --prio-low:#6C8088; --prio-none:#BDB7A2;
  --danger:#A8553B; --danger-soft:#ECD9CE; --done:#6E7B53; --warn:#B08A3E;
  --tag-fg:#56603F; --tag-bg:#DEE1CC;
  --paper-base:#E9E4D6; --paper-ink:54,55,44;

  /* ---- aliases: keep existing --c-* component CSS working ---- */
  --c-bg:var(--bg); --c-surface:var(--surface); --c-surface-2:var(--surface-2);
  --c-border:var(--line); --c-text:var(--ink); --c-text-2:var(--ink-2); --c-text-3:var(--ink-3);
  --c-primary:var(--accent); --c-primary-d:var(--accent-deep); --c-primary-soft:var(--accent-soft);
  --c-danger:var(--danger); --c-danger-soft:var(--danger-soft); --c-success:var(--done); --c-warn:var(--warn);
}

/* ---- sage · dark (暖墨橄欖) ---- */
[data-theme="dark"] {
  --bg:#22231C; --surface:#2B2C23; --surface-2:#34352A; --surface-3:#3D3E31;
  --line:#3E3F32; --line-soft:#34352A;
  --ink:#E7E2D0; --ink-2:#ACA890; --ink-3:#7C7D69;
  --accent:#A2AE82; --accent-deep:#B6C096; --accent-soft:#353826; --on-accent:#22231C;
  --prio-high:#C77A5F; --prio-medium:#C7A65E; --prio-low:#8AA0A8; --prio-none:#50513F;
  --danger:#C77A5F; --danger-soft:#3A2C24; --done:#A2AE82; --warn:#C7A65E;
  --tag-fg:#B6C096; --tag-bg:#323625;
  --paper-base:#22231C; --paper-ink:231,226,208;
}

/* ---- rice 宣紙墨黑 ---- */
[data-palette="rice"] {
  --bg:#ECE8DF; --surface:#F7F4EC; --surface-2:#E5E0D4; --surface-3:#DAD4C5;
  --line:#D2CCBC; --line-soft:#E0DBCD;
  --ink:#2B2A26; --ink-2:#57544C; --ink-3:#8B877B;
  --accent:#3F4A4A; --accent-deep:#2C3535; --accent-soft:#DAD9CF; --on-accent:#F7F4EC;
  --prio-high:#9E5340; --prio-medium:#A88646; --prio-low:#5E737A; --prio-none:#C0BAAA;
  --danger:#9E5340; --danger-soft:#E9D8CF; --done:#3F4A4A; --warn:#A88646;
  --tag-fg:#57544C; --tag-bg:#E0DCCF;
  --paper-base:#ECE8DF; --paper-ink:43,42,38;
}
[data-palette="rice"][data-theme="dark"] {
  --bg:#1E1D1A; --surface:#272622; --surface-2:#30302A; --surface-3:#393833;
  --line:#393833; --line-soft:#30302A;
  --ink:#ECE7DA; --ink-2:#ABA697; --ink-3:#7B776B;
  --accent:#A7B3B3; --accent-deep:#BFC9C9; --accent-soft:#2E302C; --on-accent:#1E1D1A;
  --prio-high:#C2806B; --prio-medium:#C5A266; --prio-low:#8DA1A8; --prio-none:#4C4B43;
  --danger:#C2806B; --danger-soft:#352824; --done:#A7B3B3; --warn:#C5A266;
  --tag-fg:#BFC9C9; --tag-bg:#2D2F2B;
  --paper-base:#1E1D1A; --paper-ink:236,231,218;
}

/* ---- tea 茶褐 ---- */
[data-palette="tea"] {
  --bg:#EAE0CF; --surface:#F5ECDB; --surface-2:#E2D5BF; --surface-3:#D7C7AC;
  --line:#D2C2A6; --line-soft:#E0D3BC;
  --ink:#3B2E22; --ink-2:#6B5942; --ink-3:#9A8568;
  --accent:#A6633C; --accent-deep:#8A4F2E; --accent-soft:#E6D4BC; --on-accent:#F8F1E5;
  --prio-high:#A8503A; --prio-medium:#B5823A; --prio-low:#7C8467; --prio-none:#C5B499;
  --danger:#A8503A; --danger-soft:#EBD6C5; --done:#7C8467; --warn:#B5823A;
  --tag-fg:#8A4F2E; --tag-bg:#E8D6BD;
  --paper-base:#EAE0CF; --paper-ink:59,46,34;
}
[data-palette="tea"][data-theme="dark"] {
  --bg:#211A12; --surface:#2A2218; --surface-2:#342A1E; --surface-3:#3E3324;
  --line:#3D3122; --line-soft:#2F2618;
  --ink:#EDE0CC; --ink-2:#B6A284; --ink-3:#837258;
  --accent:#CE9362; --accent-deep:#DCA877; --accent-soft:#36291C; --on-accent:#211A12;
  --prio-high:#C77A5F; --prio-medium:#C9A05A; --prio-low:#97A083; --prio-none:#534633;
  --danger:#C77A5F; --danger-soft:#382519; --done:#97A083; --warn:#C9A05A;
  --tag-fg:#DCA877; --tag-bg:#34291B;
  --paper-base:#211A12; --paper-ink:237,224,204;
}

/* ---- type switch ---- */
[data-type="sans"] { --type-body:var(--font-sans); --type-display:var(--font-sans); --type-latin:var(--font-sans); }
[data-type="mix"]  { --type-body:var(--font-sans); --type-display:var(--font-serif); --type-latin:var(--font-serif-latin); }

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html, body { height: 100%; }
body {
  font-family: var(--type-body);
  background: var(--c-bg);
  color: var(--c-text);
  font-size: var(--fs-base);
  line-height: var(--lh);
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
  overflow: hidden;
  transition: background var(--d-med) var(--ease), color var(--d-med) var(--ease);
}
/* latin & numerals pick up Spectral inside serif mode */
.num, time, .nav__count, .column__count, .cal__date { font-family: var(--type-latin); font-feature-settings: "ss01"; }
h1, h2, h3, h4 { font-family: var(--type-display); font-weight: 600; letter-spacing: .02em; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
input, textarea, select { outline: none; }
::selection { background: var(--accent-soft); color: var(--c-text); }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 99px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: var(--c-text-3); background-clip: padding-box; }

/* emoji rendered as monochrome ink so they sit quietly in the 文青 palette */
.nav__icon, .search__icon, .quickadd__check, #themeBtn, .glyph { filter: grayscale(1); }

/* faint fibrous paper grain over the whole app (toggle via --paper-on) */
body::before {
  content: ""; position: fixed; inset: 0; z-index: 9999; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px 160px; mix-blend-mode: multiply;
  opacity: calc(var(--paper-on) * .05);
}
[data-theme="dark"] body::before { mix-blend-mode: screen; opacity: calc(var(--paper-on) * .04); }

/* ---------- Buttons ---------- */
.btn {
  padding: 9px 18px; border-radius: var(--radius-pill); font-weight: 600;
  font-family: var(--type-display); letter-spacing: .04em;
  background: var(--c-surface-2); color: var(--c-text); border: 1px solid var(--c-border);
  transition: background .15s, border-color .15s, transform .06s;
}
.btn:active { transform: scale(.97); }
.btn--primary { background: var(--c-primary); color: var(--on-accent); border-color: var(--c-primary); }
.btn--primary:hover { background: var(--c-primary-d); border-color: var(--c-primary-d); }
.ghost-btn {
  padding: 7px 11px; border-radius: var(--radius-sm); color: var(--c-text-2);
  font-weight: 500; font-size: var(--fs-sm); transition: background .15s, color .15s;
}
.ghost-btn:hover { background: var(--c-surface-2); color: var(--c-text); }
.ghost-btn--danger:hover { background: var(--c-danger-soft); color: var(--c-danger); }
.icon-btn {
  width: 38px; height: 38px; border-radius: var(--radius-pill); color: var(--c-text-2);
  display: grid; place-items: center; font-size: 17px; transition: background .15s, color .15s;
  flex: none;
}
.icon-btn:hover { background: var(--c-surface-2); color: var(--c-text); }
.icon-btn--sm { width: 28px; height: 28px; font-size: 15px; }

/* ---------- App layout ---------- */
.app { display: grid; grid-template-columns: var(--sidebar-w) 1fr; height: 100vh; height: 100dvh; }

/* ---------- Sidebar ---------- */
.sidebar {
  background: var(--c-surface); border-right: 1px solid var(--c-border);
  display: flex; flex-direction: column; min-height: 0; z-index: 40;
}
.sidebar__head { display: flex; align-items: center; justify-content: space-between; padding: 16px 16px 8px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: var(--fs-xl); letter-spacing: .04em; font-family: var(--type-display); }
.brand__logo {
  width: 32px; height: 32px; border-radius: var(--radius-pill); background: transparent;
  border: 1.5px solid var(--c-primary); color: var(--c-primary);
  display: grid; place-items: center; font-size: 16px;
}
.sidebar__close { display: none; }

.nav { display: flex; flex-direction: column; gap: 2px; padding: 4px 10px; }
.nav__item {
  display: flex; align-items: center; gap: 11px; padding: 8px 11px; border-radius: var(--radius-sm);
  color: var(--c-text); font-weight: 500; text-align: left; width: 100%; transition: background .12s;
}
.nav__item:hover { background: var(--c-surface-2); }
.nav__item.is-active { background: var(--c-primary-soft); color: var(--c-primary-d); font-weight: 600; }
[data-theme="dark"] .nav__item.is-active { color: var(--c-primary); }
.nav__icon { font-size: 16px; width: 20px; text-align: center; flex: none; }
.nav__label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav__count { font-size: var(--fs-sm); color: var(--c-text-3); font-variant-numeric: tabular-nums; }
.nav__item.is-active .nav__count { color: var(--c-primary-d); }
.nav__dot { width: 9px; height: 9px; border-radius: 99px; flex: none; }

.nav__section { padding: 10px 10px 0; overflow-y: auto; }
.nav__section:nth-of-type(2) { flex: 1; min-height: 60px; }
.nav__section-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 4px 11px; font-size: var(--fs-xs); font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--c-text-3);
}
.list-item { position: relative; }
.list-item .nav__del {
  display: none; position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  font-size: var(--fs-sm); color: var(--c-text-3); width: 22px; height: 22px; border-radius: 6px;
}
.list-item:hover .nav__del { display: grid; place-items: center; }
.list-item .nav__del:hover { background: var(--c-danger-soft); color: var(--c-danger); }
.list-item:hover .nav__count { opacity: 0; }

.tagcloud { display: flex; flex-wrap: wrap; gap: 6px; padding: 4px 11px 8px; }
.tag-chip {
  font-size: var(--fs-sm); padding: 3px 11px; border-radius: var(--radius-pill);
  border: 1px solid var(--c-border); color: var(--c-text-2); font-weight: 500; letter-spacing: .03em;
  transition: background .12s, color .12s, border-color .12s;
}
.tag-chip:hover { border-color: var(--c-primary); color: var(--c-primary-d); }
.tag-chip.is-active { background: var(--c-primary); color: var(--on-accent); border-color: var(--c-primary); }

.sidebar__foot { padding: 12px; border-top: 1px solid var(--c-border); }
.stats { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.stats__bar { height: 7px; border-radius: 99px; background: var(--c-surface-2); overflow: hidden; }
.stats__bar > i { display: block; height: 100%; background: var(--c-success); border-radius: 99px; transition: width .5s var(--ease); }
.stats__row { display: flex; justify-content: space-between; font-size: var(--fs-sm); color: var(--c-text-2); }
.stats__row b { color: var(--c-text); font-weight: 700; }
.stats__streak { color: var(--c-warn); font-weight: 700; }
.sidebar__actions { display: flex; gap: 6px; }
.sidebar__actions .ghost-btn { flex: 1; text-align: center; }

/* ---------- Main ---------- */
.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
.topbar {
  display: flex; align-items: center; gap: 14px; padding: 18px 28px 16px;
  background: var(--c-surface); border-bottom: 1px solid var(--c-border);
}
.topbar__menu { display: none; }
.topbar__title { min-width: 0; }
.topbar__title h1 { font-size: var(--fs-xl); font-weight: 600; letter-spacing: .04em; white-space: nowrap; line-height: 1.1; }
.topbar__subtitle { font-size: var(--fs-sm); color: var(--c-text-3); letter-spacing: .06em; margin-top: 4px; }

.search {
  flex: 1; max-width: 340px; margin-left: auto; position: relative;
  display: flex; align-items: center; background: var(--c-surface);
  border-radius: var(--radius-pill); padding: 0 16px; height: 40px; border: 1px solid var(--c-border);
  transition: border-color .15s;
}
.search:focus-within { border-color: var(--c-primary); }
.search__icon { font-size: 13px; color: var(--c-text-3); }
.search input { flex: 1; background: none; border: none; padding: 0 10px; height: 100%; letter-spacing: .02em; }
.search input::placeholder { color: var(--c-text-3); }
.search__clear { color: var(--c-text-3); font-size: var(--fs-sm); }

.topbar__tools { display: flex; align-items: center; gap: 8px; }
.segmented { display: flex; border: 1px solid var(--c-border); border-radius: var(--radius-pill); padding: 3px; gap: 2px; }
.segmented__btn {
  height: 30px; min-width: 38px; padding: 0 11px; border-radius: var(--radius-pill); color: var(--c-text-3); font-size: 15px;
  display: grid; place-items: center; transition: background .12s, color .12s;
}
.segmented__btn.is-active { background: var(--c-primary); color: var(--on-accent); }

.menu-wrap { position: relative; }
.menu {
  position: absolute; right: 0; top: calc(100% + 8px); background: var(--c-surface);
  border: 1px solid var(--c-border); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 7px; min-width: 210px; z-index: 60; display: flex; flex-direction: column; gap: 1px;
  animation: pop var(--d-fast) var(--ease);
}
.menu__item { text-align: left; padding: 9px 13px; border-radius: var(--radius-sm); font-size: var(--fs-sm); font-weight: 500; letter-spacing: .03em; color: var(--c-text-2); }
.menu__item:hover { background: var(--c-surface-2); color: var(--c-text); }
.menu__item.is-active { color: var(--c-primary-d); font-weight: 600; }
.menu__group { padding: 9px 13px 3px; font-size: var(--fs-xs); letter-spacing: .22em; color: var(--c-text-3); font-family: var(--type-display); }
.menu__group:first-child { padding-top: 2px; }
.menu--style .menu__item { display: flex; align-items: center; gap: 9px; }
.menu--style .menu__item.is-active::after { content: "✓"; margin-left: auto; color: var(--c-primary-d); }
.menu .sw { width: 12px; height: 12px; border-radius: 99px; flex: none; box-shadow: inset 0 0 0 1px rgba(var(--paper-ink), .25); }

/* ---------- Quick add ---------- */
.quickadd {
  display: flex; align-items: center; gap: 12px; margin: 8px 28px 0;
  background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 9px 12px 9px 16px; transition: border-color .15s;
}
.quickadd:focus-within { border-color: var(--c-primary); }
.quickadd__check {
  width: 22px; height: 22px; border-radius: 99px; border: 1.5px dashed var(--c-text-3);
  color: var(--c-text-3); font-size: 15px; line-height: 1; flex: none; display: grid; place-items: center;
  transition: border-color .15s, color .15s;
}
.quickadd:focus-within .quickadd__check { border-color: var(--c-primary); color: var(--c-primary); }
.quickadd input { flex: 1; background: none; border: none; font-size: var(--fs-md); letter-spacing: .02em; }
.quickadd input::placeholder { color: var(--c-text-3); font-style: italic; }
.quickadd__hint { margin: 7px 30px 0; font-size: var(--fs-sm); color: var(--c-text-3); min-height: 16px; letter-spacing: .03em; }
.quickadd__hint b { color: var(--c-primary-d); font-weight: 600; font-style: normal; }

/* ---------- Batch bar ---------- */
.batchbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin: 12px 20px 0; padding: 8px 14px; background: var(--c-primary-soft);
  border-radius: var(--radius); font-size: var(--fs-sm); font-weight: 600; color: var(--c-primary-d);
}
[data-theme="dark"] .batchbar { color: var(--c-text); }
.batchbar__actions { display: flex; gap: 4px; flex-wrap: wrap; }

/* ---------- View ---------- */
.view { flex: 1; overflow-y: auto; padding: 16px 20px 80px; min-height: 0; }

/* ---------- List view — tasks as ruled notebook entries ---------- */
.tasklist { display: flex; flex-direction: column; max-width: 760px; }
.group-head {
  font-size: var(--fs-sm); font-weight: 500; letter-spacing: .2em;
  color: var(--c-text-3); margin: 26px 2px 8px; display: flex; align-items: center; gap: 14px;
  font-family: var(--type-display);
}
.group-head::after { content: ""; flex: 1; height: 1px; background: var(--c-border); }

.task {
  display: flex; align-items: flex-start; gap: 14px; padding: 15px 8px 15px 6px;
  border-bottom: 1px solid var(--line-soft); position: relative;
  transition: background .16s, opacity .2s;
}
.task:hover { background: color-mix(in srgb, var(--c-surface) 60%, transparent); }
.task.is-dragging { opacity: .4; }
.task.drop-before::before, .task.drop-after::after {
  content: ""; position: absolute; left: 0; right: 0; height: 2px; background: var(--c-primary); border-radius: 99px;
}
.task.drop-before::before { top: -1px; }
.task.drop-after::after { bottom: -1px; }
.task.is-selected { background: var(--accent-soft); }
.task__drag { cursor: grab; color: var(--c-text-3); opacity: 0; padding-top: 3px; font-size: var(--fs-sm); user-select: none; letter-spacing: -1px; }
.task:hover .task__drag { opacity: .7; }

/* priority shown as a small seal mark, not a bar */
.task__prio { width: 7px; height: 7px; border-radius: 99px; flex: none; margin-top: 9px; align-self: flex-start; background: transparent; border: 1.5px solid var(--prio-none); }
.task__prio[data-p="high"]   { background: var(--prio-high);   border-color: var(--prio-high); }
.task__prio[data-p="medium"] { background: var(--prio-medium); border-color: var(--prio-medium); }
.task__prio[data-p="low"]    { background: var(--prio-low);    border-color: var(--prio-low); }

/* checkbox — ink ring that fills with a brushed tick */
.check { position: relative; flex: none; cursor: pointer; display: inline-grid; place-items: center; margin-top: 1px; }
.check input { position: absolute; opacity: 0; width: 100%; height: 100%; cursor: pointer; }
.check__box {
  width: 21px; height: 21px; border-radius: 99px; border: 1.5px solid var(--c-text-3);
  display: grid; place-items: center; transition: background .15s, border-color .15s;
}
.check__box::after {
  content: "✓"; color: var(--on-accent); font-size: var(--fs-sm); font-weight: 700; opacity: 0; transform: scale(.4); transition: .15s var(--ease);
}
.check input:checked + .check__box { background: var(--c-success); border-color: var(--c-success); }
.check input:checked + .check__box::after { opacity: 1; transform: scale(1); }
.check--lg .check__box { width: 27px; height: 27px; }
.check--lg .check__box::after { font-size: 15px; }

.task__body { flex: 1; min-width: 0; cursor: pointer; }
.task__title { font-size: var(--fs-md); font-weight: 400; word-break: break-word; letter-spacing: .015em; line-height: 1.45; }
.task.is-done .task__title { text-decoration: line-through; text-decoration-color: var(--c-text-3); color: var(--c-text-3); }
.task__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin-top: 7px; }
.meta-chip { display: inline-flex; align-items: center; gap: 5px; font-size: var(--fs-sm); color: var(--c-text-3); white-space: nowrap; }
.meta-chip--due.is-overdue { color: var(--c-danger); }
.meta-chip--due.is-today { color: var(--c-warn); }
.meta-chip--tag { color: var(--tag-fg); }
.meta-chip--list, .meta-chip--sub, .meta-chip--recur { color: var(--c-text-3); }
.task__status {
  font-size: var(--fs-xs); font-weight: 600; padding: 2px 10px; border-radius: var(--radius-pill);
  border: 1px solid var(--c-border); color: var(--c-text-2); align-self: flex-start; letter-spacing: .08em;
  font-family: var(--type-display);
}
.task__status[data-s="doing"] { border-color: var(--c-warn); color: var(--c-warn); }

.subbar { height: 3px; background: var(--c-surface-2); border-radius: 99px; margin-top: 9px; overflow: hidden; max-width: 160px; }
.subbar > i { display: block; height: 100%; background: var(--c-primary); border-radius: 99px; }

/* ---------- Board (Kanban) ---------- */
.board { display: flex; gap: 18px; height: 100%; align-items: flex-start; overflow-x: auto; padding-bottom: 8px; }
.column {
  background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  padding: 12px; width: 304px; flex: none;
  display: flex; flex-direction: column; max-height: 100%; transition: border-color .15s;
}
.column.drop-target { border-color: var(--c-primary); border-style: dashed; }
.column__head { display: flex; align-items: center; gap: 9px; padding: 4px 8px 12px; font-weight: 600; font-size: var(--fs-sm); letter-spacing: .12em; font-family: var(--type-display); }
.column__head .dot { width: 8px; height: 8px; border-radius: 99px; }
.column__count { margin-left: auto; font-size: var(--fs-sm); color: var(--c-text-3); }
.column__body { display: flex; flex-direction: column; gap: 9px; overflow-y: auto; min-height: 40px; padding: 2px; }
.card {
  background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  padding: 13px; cursor: pointer; transition: border-color .15s, transform .12s;
}
.card:hover { border-color: var(--c-text-3); }
.card.is-dragging { opacity: .4; }
.card__top { display: flex; align-items: flex-start; gap: 9px; }
.card__title { font-weight: 400; word-break: break-word; letter-spacing: .015em; line-height: 1.45; }
.card.is-done .card__title { text-decoration: line-through; color: var(--c-text-3); }
.card__meta { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: 10px; }

/* ---------- Calendar ---------- */
.cal { max-width: 980px; margin: 0 auto; }
.cal__head { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 18px; }
.cal__head h2 { font-size: var(--fs-lg); font-weight: 600; min-width: 170px; text-align: center; letter-spacing: .1em; }
.cal__grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 1px; background: var(--c-border); border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden; }
.cal__dow { text-align: center; font-size: var(--fs-sm); font-weight: 500; color: var(--c-text-3); padding: 10px 0; background: var(--c-surface); letter-spacing: .12em; font-family: var(--type-display); }
.cal__cell {
  background: var(--c-surface); min-height: 104px; padding: 8px; display: flex; flex-direction: column; gap: 4px;
  transition: background .12s;
}
.cal__cell:hover { background: var(--c-surface-2); }
.cal__cell.is-other { opacity: .45; }
.cal__cell.drop-target { background: var(--accent-soft); }
.cal__date { font-size: var(--fs-sm); color: var(--c-text-2); align-self: flex-start; padding: 1px 7px; border-radius: 99px; }
.cal__cell.is-today .cal__date { background: var(--c-primary); color: var(--on-accent); }
.cal__ev {
  font-size: var(--fs-xs); padding: 3px 8px; border-radius: var(--radius-sm); background: var(--accent-soft);
  color: var(--accent-deep); cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-left: 2px solid var(--c-primary);
}
.cal__ev.is-done { opacity: .5; text-decoration: line-through; }
.cal__ev[data-p="high"]   { border-left-color: var(--prio-high); }
.cal__ev[data-p="medium"] { border-left-color: var(--prio-medium); }
.cal__ev[data-p="low"]    { border-left-color: var(--prio-low); }
.cal__more { font-size: var(--fs-xs); color: var(--c-text-3); padding-left: 8px; }

/* ---------- Empty state ---------- */
.empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 70px 20px; text-align: center; color: var(--c-text-3); }
.empty__emoji { font-size: 48px; filter: grayscale(1); opacity: .75; }
.empty__title { font-size: var(--fs-lg); font-weight: 600; color: var(--c-text-2); font-family: var(--type-display); }
.empty__sub { font-size: var(--fs-sm); max-width: 320px; }

/* ---------- Detail panel ---------- */
.panel-scrim { position: fixed; inset: 0; background: rgba(10,12,18,.4); z-index: 70; animation: fade .2s; }
.panel {
  position: fixed; top: 0; right: 0; bottom: 0; width: var(--panel-w); max-width: 92vw;
  background: var(--c-surface); border-left: 1px solid var(--c-border); box-shadow: var(--shadow-lg);
  z-index: 80; display: flex; flex-direction: column; animation: slideIn .25s var(--ease);
}
@keyframes slideIn { from { transform: translateX(100%); } }
@keyframes fade { from { opacity: 0; } }
.panel__head { display: flex; align-items: flex-start; gap: 10px; padding: 18px 16px 14px; border-bottom: 1px solid var(--c-border); }
.panel__title { flex: 1; font-size: var(--fs-lg); font-weight: 700; background: none; border: none; resize: none; padding: 2px 0; }
.panel__body { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field__label { font-size: var(--fs-sm); font-weight: 700; color: var(--c-text-2); display: flex; align-items: center; justify-content: space-between; }
.field__input, .field__textarea {
  background: var(--c-surface-2); border: 1px solid transparent; border-radius: var(--radius-sm);
  padding: 9px 11px; font-size: var(--fs-base); width: 100%; transition: border .15s, background .15s;
}
.field__input:focus, .field__textarea:focus { border-color: var(--c-primary); background: var(--c-surface); }
.field__textarea { resize: vertical; font-family: inherit; }
select.field__input { cursor: pointer; }

.taginput { display: flex; flex-wrap: wrap; gap: 6px; background: var(--c-surface-2); border-radius: var(--radius-sm); padding: 7px 9px; align-items: center; }
.taginput__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.taginput__input { background: none; border: none; flex: 1; min-width: 100px; font-size: var(--fs-sm); padding: 2px; }
.tag-pill { display: inline-flex; align-items: center; gap: 5px; background: var(--c-primary-soft); color: var(--c-primary-d); font-size: var(--fs-sm); padding: 3px 8px; border-radius: 99px; font-weight: 500; }
.tag-pill button { color: inherit; opacity: .6; font-size: var(--fs-sm); line-height: 1; }
.tag-pill button:hover { opacity: 1; }

.subtasks { display: flex; flex-direction: column; gap: 4px; }
.subtasks__progress { font-weight: 600; color: var(--c-text-3); }
.subtask { display: flex; align-items: center; gap: 9px; padding: 5px 4px; border-radius: 6px; }
.subtask:hover { background: var(--c-surface-2); }
.subtask span { flex: 1; font-size: var(--fs-sm); }
.subtask.is-done span { text-decoration: line-through; color: var(--c-text-3); }
.subtask__del { opacity: 0; color: var(--c-text-3); font-size: var(--fs-sm); }
.subtask:hover .subtask__del { opacity: 1; }
.subtask__del:hover { color: var(--c-danger); }
.subtasks__add { margin-top: 6px; }

.panel__meta { font-size: var(--fs-xs); color: var(--c-text-3); line-height: 1.7; padding-top: 4px; border-top: 1px dashed var(--c-border); }
.panel__foot { display: flex; gap: 6px; padding: 12px 16px; border-top: 1px solid var(--c-border); }
.panel__foot .ghost-btn { flex: 1; text-align: center; }

/* ---------- Modal ---------- */
.modal-scrim { position: fixed; inset: 0; background: rgba(10,12,18,.5); z-index: 90; display: grid; place-items: center; padding: 20px; animation: fade .15s; }
.modal { background: var(--c-surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; max-width: 420px; overflow: hidden; animation: pop .2s var(--ease); }
@keyframes pop { from { transform: scale(.95); opacity: 0; } }
.modal__head { padding: 18px 20px 4px; }
.modal__head h3 { font-size: var(--fs-lg); font-weight: 700; }
.modal__body { padding: 14px 20px; display: flex; flex-direction: column; gap: 12px; }
.modal__foot { padding: 12px 20px 18px; display: flex; gap: 8px; justify-content: flex-end; }
.modal__body .field__input { font-size: var(--fs-md); }
.swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch { width: 30px; height: 30px; border-radius: 99px; border: 2px solid transparent; cursor: pointer; }
.swatch.is-active { border-color: var(--c-text); transform: scale(1.12); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: #1c1d22; color: #fff; padding: 11px 16px; border-radius: 99px;
  display: flex; align-items: center; gap: 14px; box-shadow: var(--shadow-lg); z-index: 100;
  font-size: var(--fs-sm); animation: toastIn .25s var(--ease); max-width: 90vw;
}
[data-theme="dark"] .toast { background: var(--c-surface); border: 1px solid var(--c-border); }
@keyframes toastIn { from { transform: translate(-50%, 20px); opacity: 0; } }
.toast__action { color: var(--c-primary); font-weight: 700; white-space: nowrap; }
[data-theme="dark"] .toast__action { color: var(--c-primary); }

/* ---------- Scrims for mobile ---------- */
.scrim { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; top: 0; bottom: 0; left: 0; width: var(--sidebar-w);
    transform: translateX(-100%); transition: transform .28s var(--ease);
  }
  .app.sidebar-open .sidebar { transform: translateX(0); }
  .app.sidebar-open .scrim { display: block; position: fixed; inset: 0; background: rgba(10,12,18,.4); z-index: 35; }
  .sidebar__close { display: grid; }
  .topbar__menu { display: grid; }
  .topbar { padding: 10px 14px; }
  .topbar__title h1 { font-size: var(--fs-lg); }
  .search { max-width: none; }
  .view { padding: 14px 14px 80px; }
  .quickadd, .quickadd__hint, .batchbar { margin-left: 14px; margin-right: 14px; }
  /* Kanban becomes a swipeable, snapping pager so no column gets clipped */
  .board { scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; scroll-padding-left: 14px; }
  .column { scroll-snap-align: start; }
}

@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; }
  .topbar__subtitle { display: none; }
  .topbar__tools { margin-left: auto; }
  .topbar { gap: 8px; }
  .segmented__btn { width: 30px; }

  /* each board column fills the screen with a peek of the next — swipe to page */
  .column { width: 84vw; }

  /* search docks to the bottom — easy thumb reach */
  .search {
    display: flex; position: fixed; left: 12px; right: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom));
    height: 50px; margin: 0; z-index: 60; border-radius: 99px;
    background: var(--c-surface); border: 1px solid var(--c-border);
    box-shadow: var(--shadow-lg);
    animation: dockUp .3s var(--spring);
  }
  .search:focus-within { border-color: var(--c-primary); }

  /* quick-add also docks to the bottom — sits just above the (unchanged) search bar */
  .quickadd {
    position: fixed; left: 12px; right: 12px;
    bottom: calc(72px + env(safe-area-inset-bottom));
    margin: 0; z-index: 60; box-shadow: var(--shadow-lg);
    animation: dockUp .3s var(--spring);
  }
  .quickadd__hint { display: none; }

  .view { padding-bottom: calc(150px + env(safe-area-inset-bottom)); }
  .toast { bottom: calc(140px + env(safe-area-inset-bottom)); }
  .batchbar { position: sticky; top: 0; z-index: 20; }
}

[hidden] { display: none !important; }

/* ============================================================
   Backend additions: account, sync, collaboration
   ============================================================ */

/* --- sidebar list actions / shared badges --- */
.nav__acts { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); display: none; gap: 2px; }
.list-item:hover .nav__acts { display: flex; }
.nav__act { width: 24px; height: 24px; border-radius: 6px; font-size: var(--fs-sm); color: var(--c-text-3); display: grid; place-items: center; }
.nav__act:hover { background: var(--c-surface-2); color: var(--c-text); }
.list-item:hover .nav__count, .list-item:hover .nav__badge { opacity: 0; }
.nav__badge { font-size: var(--fs-xs); margin-right: 2px; }
.nav__shared { font-size: var(--fs-xs); color: var(--c-text-3); font-weight: 400; }

/* --- account block --- */
.account-wrap { margin-bottom: 10px; }
.account { display: flex; align-items: center; gap: 9px; width: 100%; padding: 7px; border-radius: var(--radius-sm); transition: background .12s; text-align: left; }
.account:hover { background: var(--c-surface-2); }
.account__avatar { width: 32px; height: 32px; border-radius: 99px; background: var(--c-primary); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; flex: none; }
.account__avatar--lg { width: 44px; height: 44px; font-size: 18px; }
.account__avatar--sm { width: 24px; height: 24px; font-size: var(--fs-xs); }
.account__info { display: flex; flex-direction: column; min-width: 0; flex: 1; line-height: 1.25; }
.account__info b { font-size: var(--fs-sm); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account__info span { font-size: var(--fs-xs); color: var(--c-text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account__sync { width: 9px; height: 9px; border-radius: 99px; flex: none; background: var(--c-success); }
.account__sync[data-s="syncing"] { background: var(--c-warn); animation: pulse 1s infinite; }
.account__sync[data-s="error"] { background: var(--c-danger); }
.account__sync[data-s="offline"] { background: var(--c-text-3); }
@keyframes pulse { 50% { opacity: .3; } }
.account__hint { font-size: var(--fs-xs); color: var(--c-text-3); margin-top: 6px; text-align: center; }
.account__big { display: flex; align-items: center; gap: 12px; }

/* --- auth modal --- */
.auth__err { color: var(--c-danger); font-size: var(--fs-sm); min-height: 16px; }
.auth__switch { font-size: var(--fs-sm); color: var(--c-text-2); text-align: center; }
.auth__switch button { color: var(--c-primary); font-weight: 700; }

/* --- share modal / members --- */
.share__row { display: flex; gap: 8px; }
.share__row #sh_email { flex: 1; }
.share__row #sh_role { width: 104px; flex: none; }
.members { display: flex; flex-direction: column; gap: 6px; max-height: 220px; overflow-y: auto; }
.member { display: flex; align-items: center; gap: 9px; padding: 6px; border-radius: var(--radius-sm); background: var(--c-surface-2); }
.member__info { flex: 1; min-width: 0; font-size: var(--fs-sm); display: flex; flex-direction: column; line-height: 1.2; }
.member__info span { font-size: var(--fs-xs); color: var(--c-text-3); }
.member__role { font-size: var(--fs-xs); color: var(--c-text-2); font-weight: 600; }
.member__remove { font-size: var(--fs-sm); color: var(--c-danger); padding: 3px 7px; border-radius: 6px; }
.member__remove:hover { background: var(--c-danger-soft); }

/* --- comments in detail panel --- */
.comments { display: flex; flex-direction: column; gap: 10px; max-height: 240px; overflow-y: auto; margin-bottom: 8px; }
.comment { display: flex; gap: 8px; }
.comment__body { background: var(--c-surface-2); border-radius: 10px; padding: 7px 10px; font-size: var(--fs-sm); flex: 1; }
.comment__head { font-size: var(--fs-xs); color: var(--c-text-3); margin-bottom: 2px; }
.comment__head b { color: var(--c-text-2); }
.comment__add { display: flex; gap: 8px; }
.comment__add .field__input { flex: 1; }

/* ============================================================
   Motion — app-like micro-interactions
   ============================================================ */
.view { scroll-behavior: smooth; }
.board { -webkit-overflow-scrolling: touch; }

@keyframes viewIn   { from { opacity: 0; transform: translateY(6px); } }
@keyframes rowIn    { from { opacity: 0; transform: translateY(9px); } }
@keyframes checkPop { 0% { transform: scale(.5); } 55% { transform: scale(1.18); } 100% { transform: scale(1); } }
@keyframes dockUp   { from { transform: translateY(120%); opacity: .4; } }
@keyframes ring     { 0% { box-shadow: 0 0 0 0 var(--c-primary-soft); } 100% { box-shadow: 0 0 0 6px transparent; } }

@media (prefers-reduced-motion: no-preference) {
  /* view-enter: staggered reveal on navigation (not on typing / edits) */
  .view--enter .tasklist > * { animation: rowIn .30s var(--ease) both; }
  .view--enter .tasklist > *:nth-child(1) { animation-delay: 0s; }
  .view--enter .tasklist > *:nth-child(2) { animation-delay: .03s; }
  .view--enter .tasklist > *:nth-child(3) { animation-delay: .06s; }
  .view--enter .tasklist > *:nth-child(4) { animation-delay: .09s; }
  .view--enter .tasklist > *:nth-child(5) { animation-delay: .12s; }
  .view--enter .tasklist > *:nth-child(6) { animation-delay: .15s; }
  .view--enter .tasklist > *:nth-child(7) { animation-delay: .18s; }
  .view--enter .tasklist > *:nth-child(n+8) { animation-delay: .20s; }
  .view--enter .board .column { animation: rowIn .34s var(--ease) both; }
  .view--enter .board .column:nth-child(2) { animation-delay: .05s; }
  .view--enter .board .column:nth-child(3) { animation-delay: .10s; }
  .view--enter .cal, .view--enter .empty { animation: viewIn .30s var(--ease) both; }

  /* tactile press feedback */
  .task:active, .card:active { transform: scale(.985); }
  .nav__item:active, .menu__item:active, .tag-chip:active, .cal__ev:active,
  .segmented__btn:active, .icon-btn:active { transform: scale(.94); }
  .nav__item, .icon-btn, .tag-chip, .segmented__btn { transition: background .15s, color .15s, transform .08s var(--spring); }

  /* satisfying checkbox */
  .check input:checked + .check__box { animation: checkPop .32s var(--spring); }
  /* newly opened panel list items, comments */
  .comment { animation: rowIn .25s var(--ease) both; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}