* { box-sizing: border-box; }

/* Material Symbols — one icon family/weight/optical size everywhere,
   instead of platform emoji (which render as a different picture per OS
   and can't take the theme's text color). Glyphs are selected by their
   ligature name in markup, e.g. <span class="material-symbols-outlined">
   folder</span>; color always follows currentColor, so an icon inside a
   themed button/link already matches it with no extra rule needed. */
.material-symbols-outlined {
  font-family: "Material Symbols Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 20px;
  line-height: 1;
  display: inline-flex;
  vertical-align: middle;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}
.icon-inline { font-size: 16px; position: relative; top: -1px; }

:root {
  color-scheme: light;

  /* --- color roles (Material 3 §1) — a hand-picked palette assigned by
     role, not a runtime-computed tonal-ramp/dynamic-color system (that
     needs an HCT color-space algorithm from a single key color; out of
     scope for a hand-authored stylesheet — see docs/design/m3-compliance.md
     for why that's a disclosed, deliberate gap rather than an oversight).
     Every role M3 names for a *static* palette is still here, including
     the two this app didn't have until this pass: Secondary (chips/
     badges/tonal surfaces) and Tertiary (a second accent, used sparingly
     to avoid competing with Primary). */
  --primary: #4f46e5;
  --on-primary: #ffffff;
  --primary-contrast: #ffffff; /* kept as an alias — see components still referencing it */
  --primary-container: #e4e1ff;
  --on-primary-container: #1c1a4d;

  --secondary: #5b5d72;
  --on-secondary: #ffffff;
  --secondary-container: #e0e1f9;
  --on-secondary-container: #181a2c;

  --tertiary: #7b5265;
  --on-tertiary: #ffffff;
  --tertiary-container: #ffd9e8;
  --on-tertiary-container: #31101f;

  --error: #b3261e;
  --on-error: #ffffff;
  --error-container: #f9dedc;
  --on-error-container: #410e0b;
  --danger: var(--error); /* pre-existing name, kept as an alias throughout */

  --success: #146c2e; /* M3 has no "success" role either — apps add their own, same as here */
  --on-success: #ffffff;

  --bg: #f3f2f7; /* "Background" role */
  --on-bg: #1c1b1f;
  --surface: #ffffff;
  --on-surface: #1c1b1f;
  --on-surface-variant: #49454f;
  --border: #e1dfe8; /* "Outline" role */
  --outline-variant: #cac4d0;

  /* surface + elevation tint (M3 §4): each level mixes a little more
     Primary into Surface rather than just piling on shadow — see the
     --elevation-* shadows below, used together with these */
  --surface-1: color-mix(in srgb, var(--surface) 95%, var(--primary) 5%);
  --surface-2: color-mix(in srgb, var(--surface) 92%, var(--primary) 8%);
  --surface-3: color-mix(in srgb, var(--surface) 89%, var(--primary) 11%);
  --surface-alt: var(--surface-2); /* pre-existing name (was its own fixed hex, nearly identical) — now literally level 2, used all over already */

  /* --- elevation (M3 §4): shadow half of the pair above --- */
  --elevation-0: none;
  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.08);
  --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.12);
  --elevation-3: 0 4px 12px rgba(0, 0, 0, 0.16);
  --elevation-4: 0 6px 16px rgba(0, 0, 0, 0.18);
  --elevation-5: 0 8px 24px rgba(0, 0, 0, 0.22);
  --shadow-1: var(--elevation-1); /* pre-existing names, kept as aliases */
  --shadow-2: var(--elevation-3);

  /* --- shape (M3 §5): a named scale instead of scattered magic numbers —
     applied where a component's radius already matched one of these
     values (a pure rename, not a visual change), see components below */
  --shape-none: 0px;
  --shape-xs: 4px;
  --shape-sm: 8px;
  --shape-md: 12px;
  --shape-lg: 16px;
  --shape-xl: 28px;
  --shape-full: 9999px;
  --radius: var(--shape-md); /* pre-existing name (was a literal 10px), kept as an alias — now 12px, the nearest step on the real scale */

  /* --- spacing (M3 §3): the 8dp/4dp grid. Most of the app already landed
     on one of these by hand; a few genuinely-decorative micro-paddings
     inside already-tuned dense components (chip padding, avatar sizes)
     intentionally stay off-grid rather than being force-fit and risking
     a visual regression — see docs/design/m3-compliance.md for exactly
     which ones and why. */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;

  /* --- motion (M3 §6) --- */
  --motion-fast: 150ms;
  --motion-standard: 300ms;
  --motion-emphasized: 400ms;
  --easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --easing-emphasized: cubic-bezier(0.3, 0, 0.1, 1);

  --select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%2349454f' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --primary: #b4a9ff;
  --on-primary: #1c1330;
  --primary-contrast: #1c1330;
  --primary-container: #362f6e;
  --on-primary-container: #e4e1ff;

  --secondary: #c4c5dd;
  --on-secondary: #2d2f42;
  --secondary-container: #434659;
  --on-secondary-container: #e0e1f9;

  --tertiary: #eab8cd;
  --on-tertiary: #48293a;
  --tertiary-container: #613951;
  --on-tertiary-container: #ffd9e8;

  --error: #ffb4ab;
  --on-error: #690005;
  --error-container: #93000a;
  --on-error-container: #ffdad6;
  --danger: var(--error);

  --success: #7ddc94;
  --on-success: #0a3818;

  --bg: #121016;
  --on-bg: #e7e0e8;
  --surface: #1d1b22;
  --on-surface: #e7e0e8;
  --on-surface-variant: #cac4d0;
  --border: #34313b;
  --outline-variant: #49454f;

  --surface-1: color-mix(in srgb, var(--surface) 95%, var(--primary) 5%);
  --surface-2: color-mix(in srgb, var(--surface) 90%, var(--primary) 10%);
  --surface-3: color-mix(in srgb, var(--surface) 85%, var(--primary) 15%);
  --surface-alt: var(--surface-2);

  --elevation-1: 0 1px 2px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.4);
  --elevation-2: 0 1px 2px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.45);
  --elevation-3: 0 4px 16px rgba(0, 0, 0, 0.5);
  --elevation-4: 0 6px 20px rgba(0, 0, 0, 0.55);
  --elevation-5: 0 8px 28px rgba(0, 0, 0, 0.6);
  --shadow-1: var(--elevation-1);
  --shadow-2: var(--elevation-3);

  --select-chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23cac4d0' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

html, body {
  height: 100%;
  margin: 0;
  font-family: "Roboto", "Segoe UI", system-ui, sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--on-surface);
}
body { display: flex; }

/* --- type scale (M3 §2): the same five role families (Display/Headline/
   Title/Body/Label) and their internal weight/line-height relationships,
   at sizes compressed for a dense, information-heavy desktop tool instead
   of M3's literal mobile-first numbers (a literal 57px Display Large would
   dominate a board full of 14px task cards) — see docs/design/
   m3-compliance.md. Applied to this app's actual headings/titles/labels
   below; Display isn't used anywhere yet (nothing in this app is a
   hero-scale number), but the classes exist for whatever needs it next. */
.type-display-l { font-size: 34px; line-height: 40px; font-weight: 700; }
.type-display-m { font-size: 28px; line-height: 34px; font-weight: 700; }
.type-display-s { font-size: 24px; line-height: 30px; font-weight: 700; }
.type-headline-l { font-size: 22px; line-height: 28px; font-weight: 700; }
.type-headline-m { font-size: 20px; line-height: 26px; font-weight: 700; }
.type-headline-s { font-size: 18px; line-height: 24px; font-weight: 700; }
.type-title-l { font-size: 16px; line-height: 22px; font-weight: 600; }
.type-title-m { font-size: 14px; line-height: 20px; font-weight: 600; }
.type-title-s { font-size: 13px; line-height: 18px; font-weight: 600; }
.type-body-l { font-size: 14px; line-height: 20px; font-weight: 400; }
.type-body-m { font-size: 13px; line-height: 18px; font-weight: 400; }
.type-body-s { font-size: 12px; line-height: 16px; font-weight: 400; }
.type-label-l { font-size: 13px; line-height: 18px; font-weight: 500; }
.type-label-m { font-size: 12px; line-height: 16px; font-weight: 500; }
.type-label-s { font-size: 11px; line-height: 14px; font-weight: 500; }

/* Material's own button hierarchy, reduced to the three variants this app
   actually needs: Filled (.btn-primary — the one confirming/primary action
   per screen or dialog), Outlined (the bare <button> default — every
   secondary action sits at this one emphasis level, not a one-off mix of
   ad hoc resets), and Icon button (.btn-icon — a circular, label-less
   touch target for a handful of persistent utility actions). Structural,
   non-"button" components that happen to be <button> elements for
   semantics/keyboard access — nav items, tabs, breadcrumbs, tag-remove ×,
   subtask links — opt out of all three by setting their own color/border/
   background, same as before; they follow Material's Navigation/Tabs
   specs, not its Button spec. */
button {
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--primary);
  border-radius: var(--shape-full);
  padding: 8px 16px;
  cursor: pointer;
  transition: background var(--motion-fast) var(--easing-standard), border-color var(--motion-fast) var(--easing-standard), box-shadow var(--motion-fast) var(--easing-standard);
}
button:hover { background: color-mix(in srgb, var(--primary) 10%, transparent); border-color: var(--primary); }
button:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent); }
button:disabled { opacity: 0.5; cursor: not-allowed; background: transparent; box-shadow: none; }
button:not(.nav-item):has(.material-symbols-outlined) { display: inline-flex; align-items: center; gap: 6px; }
button:not(.nav-item):has(.material-symbols-outlined)[hidden] { display: none; }

.btn-primary {
  background: var(--primary);
  color: var(--primary-contrast);
  border-color: transparent;
  font-weight: 700;
}
.btn-primary:hover { background: var(--primary); border-color: transparent; box-shadow: var(--shadow-2); filter: brightness(1.05); }
.btn-primary:focus-visible { box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 35%, transparent); }
.btn-primary:disabled { opacity: 0.5; filter: none; box-shadow: none; }

/* Tonal — the fourth M3 button tier this app was missing: filled with a
   container color rather than Primary itself, for an action that's more
   than a neutral Outlined action but doesn't deserve the visual weight of
   the one Filled/primary action on the screen. */
.btn-tonal {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-color: transparent;
  font-weight: 600;
}
.btn-tonal:hover { background: var(--secondary-container); border-color: transparent; box-shadow: var(--elevation-1); filter: brightness(1.05); }
.btn-tonal:focus-visible { box-shadow: 0 0 0 3px color-mix(in srgb, var(--secondary) 30%, transparent); }
.btn-tonal:disabled { opacity: 0.5; filter: none; box-shadow: none; }

/* Icon button — a 48x48dp touch target (M3 §7's accessibility minimum)
   even though the glyph inside stays a visually-compact 18-20px; the two
   places this app deliberately keeps a smaller target instead (the tag
   chip's ×, the notes breadcrumb's back arrow) are dense inline controls
   inside an already-small component, the same kind of exemption M3's own
   chip component gets — see docs/design/m3-compliance.md. */
.btn-icon {
  border: none;
  background: transparent;
  color: var(--on-surface-variant);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-icon:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); border-color: transparent; box-shadow: none; }
.btn-icon:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--on-surface-variant) 25%, transparent); }
.btn-icon .material-symbols-outlined { font-size: 22px; }
.btn-icon[hidden] { display: none; }

.theme-toggle { padding: 6px 14px; font-size: 12px; }

input, select, textarea {
  font-family: inherit;
  font-size: 13px;
  padding: 6px 8px;
  border-radius: var(--shape-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--on-surface);
  transition: border-color var(--motion-fast) var(--easing-standard), box-shadow var(--motion-fast) var(--easing-standard);
}
input:hover, select:hover, textarea:hover { border-color: var(--on-surface-variant); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent);
}
input:disabled, select:disabled { opacity: 0.6; cursor: not-allowed; }

/* Native <select> chrome (the dropdown arrow) is the one form control the
   rest of the UI can't restyle away — themed via --select-chevron instead
   of leaving the browser's own (unthemed, OS-dependent) arrow glyph, so it
   reads as part of the same flat visual language as everything else. */
select {
  appearance: none;
  -webkit-appearance: none;
  background-image: var(--select-chevron);
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 10px 6px;
  padding-right: 26px;
}

/* --- hamburger --- */

/* Floats directly over page content rather than sitting in a toolbar, so
   — unlike other icon buttons — it keeps a surface background and resting
   shadow for contrast against whatever's underneath (the one deliberate
   exception to .btn-icon's otherwise-transparent resting state). */
#hamburger {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 20;
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
#hamburger:hover { box-shadow: var(--shadow-2); }

/* --- sidebar --- */

#sidebar {
  width: 280px;
  min-width: 280px;
  background: var(--surface-alt);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 12px;
  gap: 12px;
  transition: margin-left var(--motion-standard) var(--easing-emphasized);
}
#sidebar.collapsed { margin-left: -280px; }

/* The hamburger sits fixed at (10,10)-(58,58) in page coordinates, floating
   over whatever's underneath (see its own comment above) — when the
   sidebar is expanded, that's this header, so it needs enough left inset
   to clear the button instead of the brand name rendering half-hidden
   behind it. 54px = the hamburger's right edge (58) minus this sidebar's
   own 12px padding, plus an 8px gap. */
#sidebar-header { display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding-left: 54px; }
.brand { font-weight: 700; font-size: 15px; letter-spacing: 0.2px; }

#user-box { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--on-surface-variant); }
#current-user-label { flex: 1; font-weight: 700; color: var(--on-surface); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#logout-btn { padding: 4px 10px; font-size: 11px; }

#profile-photo-preview { display: flex; }
#profile-photo-preview img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; }

/* --- toast (replaces alert() for errors that happen outside a modal, e.g.
   drag-and-drop) --- */
#toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface-3);
  color: var(--on-surface);
  border: 1px solid var(--border);
  box-shadow: var(--elevation-3);
  border-radius: var(--shape-sm);
  padding: 10px 18px;
  font-size: 13px;
  max-width: 380px;
  text-align: center;
  z-index: 50;
}
#toast[hidden] { display: none; }
#toast.toast-error { border-color: var(--danger); color: var(--danger); }

/* --- ClickUp-style nav tree --- */

#nav-tree { display: flex; flex-direction: column; gap: 2px; overflow-y: auto; flex: 1; margin-top: 4px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  box-shadow: none;
  border-radius: var(--shape-sm);
  padding: 8px 10px;
  font-weight: 500;
  color: var(--on-surface);
}
.nav-item:hover { background: var(--surface); border-color: transparent; }
.nav-item:focus-visible { box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent); }
.nav-item.active { background: var(--primary); color: var(--primary-contrast); font-weight: 700; }

.nav-section { margin-top: 6px; }
.nav-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--on-surface-variant);
  padding: 6px 6px 2px 10px;
}
.nav-section-title button.btn-icon { width: 22px; height: 22px; }
.nav-section-title button.btn-icon .material-symbols-outlined { font-size: 16px; }
.nav-subitem { padding-left: 22px; font-weight: 400; font-size: 13px; }
.nav-empty { padding: 4px 10px; font-size: 12px; color: var(--on-surface-variant); font-style: italic; }

.nav-group { display: flex; flex-direction: column; }
.nav-group-header { display: flex; align-items: center; gap: 2px; }
.nav-project-toggle { font-size: 13px; }
.nav-group-header .nav-project-toggle { flex: 1; min-width: 0; }
.nav-children { display: flex; flex-direction: column; }
.nav-children[hidden] { display: none; }

/* Per-project gear, opening straight into that project's Settings instead
   of it being one more item in the expandable Tasks/Notes list below. Sized
   like the breadcrumb back-arrow and tag-chip × — a dense inline control
   inside an already-compact nav row, not a standalone .btn-icon target. */
.nav-gear-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--on-surface-variant);
  border-radius: var(--shape-sm);
}
.nav-gear-btn .material-symbols-outlined { font-size: 18px; }
.nav-gear-btn:hover { background: color-mix(in srgb, var(--on-surface) 8%, transparent); }
.nav-gear-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--on-surface-variant) 25%, transparent); }
.nav-gear-btn.active { background: var(--primary); color: var(--primary-contrast); }

/* elegant underline tabs, sit at the top of the main content, not a segmented control */
#view-toggle, #home-filter, #notes-view-toggle { display: flex; gap: 20px; border-bottom: 2px solid var(--border); }
#view-toggle[hidden], #home-filter[hidden], #notes-view-toggle[hidden] { display: none; }
#view-toggle button, #home-filter button, #notes-view-toggle button {
  border: none; background: transparent; box-shadow: none; border-radius: 0;
  padding: 8px 2px; margin-bottom: -2px;
  border-bottom: 2px solid transparent;
  color: var(--on-surface-variant); font-weight: 500;
}
#view-toggle button:hover, #home-filter button:hover, #notes-view-toggle button:hover { background: transparent; color: var(--on-surface); }
#view-toggle button.active, #home-filter button.active, #notes-view-toggle button.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 700; }
#new-folder-btn { font-size: 13px; }

/* --- notes: breadcrumb, list (Drive-style columns), grid (Drive-style tiles) --- */

#notes-breadcrumb { margin-top: 10px; display: flex; align-items: center; gap: 2px; font-size: 13px; color: var(--on-surface-variant); }
#notes-breadcrumb[hidden] { display: none; }
#notes-back-btn { width: 24px; height: 24px; margin-right: 4px; }
#notes-back-btn .material-symbols-outlined { font-size: 16px; }
.breadcrumb-item {
  border: none; background: transparent; box-shadow: none; padding: 2px 4px;
  font-size: 13px; color: var(--on-surface-variant); cursor: pointer;
}
.breadcrumb-item:last-child { color: var(--on-surface); font-weight: 600; }
.breadcrumb-item:hover { text-decoration: underline; background: transparent; }

.notes-table { display: flex; flex-direction: column; }
.notes-table-header, .notes-table-row {
  display: grid;
  grid-template-columns: 1fr 200px 140px;
  gap: 12px;
  align-items: center;
  padding: 8px 10px;
}
.notes-table-header { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--on-surface-variant); border-bottom: 1px solid var(--border); }
.notes-table-row { border-bottom: 1px solid var(--border); cursor: pointer; border-radius: var(--shape-sm); }
.notes-table-row:hover { background: var(--surface-alt); }
.notes-name-cell { display: flex; align-items: center; gap: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.notes-table-row span:nth-child(2) { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--on-surface-variant); }
.notes-table-row span:nth-child(3) { font-size: 12px; color: var(--on-surface-variant); }

.notes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; }

/* Same card chrome for every tile — border/radius/shadow/hover matches
   .item-card elsewhere in the app — so folders and notes read as one
   consistent family of square boxes, distinguished only by icon/content,
   not by different box styles. */
.notes-tile {
  display: flex;
  flex-direction: column;
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-1);
  padding: 12px;
  gap: 8px;
  cursor: pointer;
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.notes-tile:hover { box-shadow: var(--shadow-2); }

.notes-tile-titlebar { display: flex; align-items: center; gap: 6px; min-width: 0; }
.notes-tile-icon { font-size: 16px; line-height: 1; flex-shrink: 0; }
.notes-tile-icon .material-symbols-outlined { font-size: inherit; }
.notes-tile-name { font-size: 12px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.notes-tile-preview {
  flex: 1;
  font-size: 11.5px;
  line-height: 1.45;
  color: var(--on-surface-variant);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
}
.notes-tile-footer { margin-top: auto; display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--on-surface-variant); min-width: 0; }
.notes-tile-owner-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Folders hold no preview, so their icon+name is centered as the sole
   content instead of pinned to the top like a note's titlebar. */
.notes-tile-folder {
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--surface-alt);
}
.notes-tile-folder .notes-tile-icon { font-size: 34px; }
.notes-tile-folder .notes-tile-name { font-size: 12.5px; }

/* --- main / board views --- */

#main { flex: 1; min-width: 0; overflow: auto; padding: 20px 24px 20px 56px; }

#main-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
#main-title { font-size: 18px; margin: 0; }
#main-topbar { display: flex; align-items: center; gap: 16px; }

.board-view { display: flex; flex-direction: column; gap: 8px; }
.board-view[hidden] { display: none; }

#home-add-personal-task { margin-bottom: 20px; }
.home-project-group { margin-bottom: 20px; }
.home-project-group h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--on-surface-variant); margin: 0 0 8px; }

.status-section { margin-bottom: 18px; border-radius: var(--radius); }
.status-section h2 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--on-surface-variant); margin: 0 0 8px; }
.status-section .item-card, .status-section .status-add-row { margin-bottom: 6px; }
.status-section.drag-over, .notes-table-row.drag-over, .notes-tile-folder.drag-over, .breadcrumb-item.drag-over {
  outline: 2px dashed var(--primary);
  outline-offset: -4px;
}
.item-card[draggable="true"] { cursor: grab; }
.item-card.dragging, .notes-table-row.dragging, .notes-tile.dragging { opacity: 0.5; }
.notes-table-row[draggable="true"], .notes-tile[draggable="true"] { cursor: grab; }

.status-add-row {
  border: 1px dashed var(--border);
  border-radius: var(--shape-sm);
  padding: 8px 10px;
  color: var(--on-surface-variant);
  cursor: pointer;
  text-align: center;
  font-size: 13px;
}
.status-add-row:hover { background: var(--surface-alt); color: var(--on-surface); border-color: var(--primary); }

.item-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  cursor: pointer;
  box-shadow: var(--shadow-1);
}
.item-card:hover { box-shadow: var(--shadow-2); }
.item-card .item-title { font-weight: 600; }
.item-card .item-meta { display: block; font-size: 12px; color: var(--on-surface-variant); margin-top: 2px; }

.card-meta-row { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
/* Secondary is M3's own example role for "badges, chips" — a tonal
   container distinct from the neutral surface tones used for backgrounds/
   cards, so a tag reads as a small piece of colored metadata rather than
   part of the card's own surface. */
.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--shape-sm);
  background: var(--secondary-container);
  color: var(--on-secondary-container);
}
/* the current status gets Primary instead — a tonal highlight, not just
   colored text, so it doesn't rely on color alone (see also: the status
   name itself is always spelled out as text right next to/inside it,
   satisfying M3's color-independence rule the same way) */
.badge-status { background: var(--primary-container); color: var(--on-primary-container); font-weight: 700; }

.card-people-row { margin-top: 6px; display: flex; align-items: center; }
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.avatar-owner { box-shadow: 0 0 0 2px var(--primary); }
.avatar-stack { display: inline-flex; margin-left: 6px; }
.avatar-photo { overflow: hidden; }
.avatar-photo img { width: 100%; height: 100%; object-fit: cover; }
.avatar-stack .avatar + .avatar { margin-left: -8px; box-shadow: 0 0 0 2px var(--surface); }

#members-view { max-width: 480px; }
.member-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.member-row .member-name { flex: 1; font-weight: 600; }
.member-row button { padding: 4px 10px; font-size: 12px; }
.member-row select { padding: 4px 22px 4px 10px; font-size: 12px; background-position: right 6px center; }
#add-member-form { display: flex; gap: 8px; margin-top: 8px; }
#add-member-form input { flex: 1; }

/* --- kanban --- */

#kanban-view { flex-direction: row; overflow-x: auto; padding-bottom: 8px; }
.kanban-column {
  min-width: 240px;
  max-width: 280px;
  display: flex;
  flex-direction: column;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
}
.kanban-column.drag-over { outline: 2px dashed var(--primary); outline-offset: -4px; }
.kanban-column h3 {
  margin: 0 0 8px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--on-surface-variant);
}
.kanban-cards { display: flex; flex-direction: column; gap: 8px; overflow-y: auto; }
.kanban-cards .status-add-row { font-size: 12px; padding: 6px 8px; }
.kanban-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--shape-sm);
  padding: 8px 10px;
  cursor: grab;
  box-shadow: var(--shadow-1);
  font-size: 13px;
}
.kanban-card:hover { box-shadow: var(--shadow-2); }
.kanban-card.dragging { opacity: 0.5; }
.kanban-card .card-meta { display: block; font-size: 11px; color: var(--on-surface-variant); margin-top: 3px; }

/* --- editor dialog --- */

dialog {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  background: var(--surface-3);
  color: var(--on-surface);
  box-shadow: var(--elevation-3);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.45); }

/* --- unlock / encryption dialogs --- */

#login-google-btn {
  display: block;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--shape-full);
  cursor: pointer;
}
#login-google-btn[hidden] { display: none; }
#login-error { color: var(--danger); }

#unlock-dialog, #vault-secret-dialog { padding: 20px; min-width: 360px; max-width: 440px; }
#unlock-dialog[open], #vault-secret-dialog[open] { display: flex; flex-direction: column; gap: 12px; }
#unlock-status { color: var(--danger); }
#vault-secret-value {
  font-family: ui-monospace, "SF Mono", Consolas, monospace;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--shape-sm);
  padding: 10px 12px;
  word-break: break-all;
  user-select: all;
}
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid color-mix(in srgb, var(--primary) 30%, transparent);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner[hidden] { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

#scope-encryption-fields #encryption-status-text { color: var(--on-surface-variant); }

#history-dialog { padding: 20px; min-width: 420px; max-width: 520px; }
#history-dialog[open] { display: flex; flex-direction: column; gap: 12px; max-height: 80vh; }
#history-list { overflow-y: auto; display: flex; flex-direction: column; gap: 4px; }
.history-entry { display: flex; align-items: center; gap: 12px; padding: 8px; border-radius: var(--shape-sm); }
.history-entry:hover { background: var(--surface-alt); }
.history-entry-meta { flex: 1; min-width: 0; }
.history-entry-message { font-size: 13px; color: var(--on-surface); }
.history-entry-sub { font-size: 11px; color: var(--on-surface-variant); }
.history-entry button { padding: 4px 12px; font-size: 12px; flex-shrink: 0; }
#history-status { font-size: 12px; color: var(--on-surface-variant); }

#editor-dialog[open] { width: 92vw; max-width: 1200px; height: 88vh; display: flex; flex-direction: column; }
#editor-dialog.fullscreen[open] {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  inset: 0;
  margin: 0;
  border-radius: 0;
}
#editor-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
#meta-summary {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--on-surface-variant);
}
.meta-title { flex-basis: 100%; font-size: 14px; font-weight: 600; color: var(--on-surface); }
.meta-id { font-size: 11px; }
#save-status { font-size: 12px; color: var(--on-surface-variant); max-width: 30%; }

#presence-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--on-secondary-container);
  background: var(--secondary-container);
  border-radius: var(--shape-full);
  padding: 4px 12px;
}
#presence-indicator[hidden] { display: none; }
#presence-indicator::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}

/* One shared banner for every multi-user notice inside the editor — a
   remote change landed while this item was open, a merge happened
   automatically, or a real conflict needs the user's attention. Variant
   class picks the M3 container color; everything else about it is the
   same (message + up to a couple of actions). */
#editor-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
#editor-banner[hidden] { display: none; }
#editor-banner-text { flex: 1; }
#editor-banner-actions { display: flex; gap: 8px; }
#editor-banner-actions button { padding: 4px 12px; font-size: 12px; }
.banner-info { background: var(--secondary-container); color: var(--on-secondary-container); }
.banner-warn { background: var(--tertiary-container); color: var(--on-tertiary-container); }
.banner-error { background: var(--error-container); color: var(--on-error-container); }
.banner-info #editor-banner-actions button, .banner-warn #editor-banner-actions button, .banner-error #editor-banner-actions button {
  color: inherit;
  border-color: color-mix(in srgb, currentColor 35%, transparent);
}

/* A left-hand sidebar instead of a full-width strip above the content —
   the header used to push the actual note/task down before a reader saw
   any of it; as a narrower column beside #panes it stays visible without
   costing vertical space. 25/75 by default, but #editor-resizer lets
   anyone drag that split — see app.js, which also remembers whatever they
   last set (localStorage) and re-applies it as inline `flex-basis`,
   overriding the percentage below. */
#editor-body { flex: 1; display: flex; min-height: 0; }
#header-panel {
  flex: 0 0 25%;
  min-width: 180px;
  max-width: 60%;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px;
  border-right: 1px solid var(--border);
  background: var(--surface-alt);
  overflow-y: auto;
}
#header-panel[hidden] { display: none; }
#header-panel[hidden] + #editor-resizer { display: none; }

#editor-resizer {
  flex: 0 0 6px;
  cursor: col-resize;
  background: transparent;
  position: relative;
}
#editor-resizer::after {
  content: "";
  position: absolute;
  inset: 0 2px;
  background: var(--border);
}
#editor-resizer:hover::after, #editor-resizer.dragging::after { background: var(--primary); }
.header-field { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 6px; border-radius: var(--shape-sm); }
.header-field[hidden] { display: none; }
.header-field:hover { background: var(--surface); }
.header-field > label { flex-shrink: 0; font-size: 12px; color: var(--on-surface-variant); }
.header-field select, .header-field > input { font-size: 13px; }
#header-status, #header-due-date { max-width: 100%; width: 100%; }
#header-owner { display: flex; align-items: center; gap: 6px; }
#header-save-status { font-size: 11px; color: var(--on-surface-variant); }

.chip-field-wrap { flex: 1; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-radius: var(--shape-sm); /* Chips use M3's Small shape, not Full — unlike buttons, chips are never fully pill-shaped */
  padding: 2px 4px 2px 10px;
  font-size: 12px;
}
.tag-chip .avatar { width: 16px; height: 16px; font-size: 8px; }
.tag-chip button {
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 0 5px;
  font-size: 14px;
  line-height: 1;
  color: var(--on-surface-variant);
  cursor: pointer;
}
.tag-chip button:hover { color: var(--danger); }
#header-tags-input {
  border: none;
  background: transparent;
  font-size: 12px;
  min-width: 90px;
  flex: 1;
  padding: 2px 4px;
  border-radius: var(--shape-sm);
}
#header-tags-input:hover { border-color: transparent; }
#header-tags-input:focus { outline: none; box-shadow: none; background: var(--surface); }
/* Chromium draws its own (unthemed) dropdown-suggestions indicator on any
   input wired to a <datalist> — same pseudo-element as the date/time
   picker icon. Hidden here only (not on real date inputs, which should
   keep their native icon) since the chip row already implies "there's a
   list to pick from" via placeholder + the tag chips themselves. */
#header-tags-input::-webkit-calendar-picker-indicator { display: none; }
/* Matches the chip row's own compact height (~20px) instead of the full
   bordered <select> box — was visibly taller than the chips sitting right
   next to it in the same row before this. Same "blend in at rest, show
   its box on hover/focus" treatment #header-tags-input already used, so
   both "add a new one" controls (tags' input, assigned-to's select) read
   as the same size/weight as each other and as the chips beside them. */
#header-assigned-add {
  border: none;
  background-color: transparent;
  background-position: right 4px center;
  color: var(--on-surface-variant);
  font-size: 12px;
  max-width: 140px;
  padding: 2px 20px 2px 6px;
  border-radius: var(--shape-sm);
}
#header-assigned-add:hover { background-color: color-mix(in srgb, var(--on-surface) 6%, transparent); border-color: transparent; }
#header-assigned-add:focus { background-color: var(--surface); }

#header-parent-wrap { flex: 1; display: flex; align-items: center; gap: 8px; width: 100%; }
#header-parent-select { max-width: 100%; flex: 1; min-width: 0; }
#header-parent-open { font-size: 12px; padding: 4px 10px; }

#header-children-wrap { flex: 1; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
#header-children-list { display: flex; flex-direction: column; gap: 3px; width: 100%; }
#header-related-notes-list { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.child-link {
  align-self: flex-start;
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 2px 4px;
  font-size: 12px;
  color: var(--primary);
  text-decoration: underline;
  cursor: pointer;
}
.header-empty-hint { font-size: 12px; color: var(--on-surface-variant); }
#add-subtask-btn { font-size: 12px; padding: 4px 10px; }

/* --- inline [[item-id]] references, rendered clickable in the preview --- */
.ref-link {
  color: var(--primary);
  text-decoration: underline;
  cursor: pointer;
}
.ref-broken {
  color: var(--danger);
  border-bottom: 1px dashed var(--danger);
  cursor: help;
}

#ref-picker-body { display: flex; flex-direction: column; gap: 10px; padding: 20px; width: 360px; }
#ref-picker-list { display: flex; flex-direction: column; gap: 4px; max-height: 320px; overflow: auto; }
.ref-picker-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 10px;
  border-radius: var(--shape-sm);
  cursor: pointer;
}
.ref-picker-row:hover { background: var(--surface-alt); }
.ref-picker-row .ref-picker-id { color: var(--on-surface-variant); font-size: 11px; }

/* --- reusable "type to find a person" combobox (app.js attachUserPicker)
   — one artifact behind add-member, assigned-to, and transfer-ownership,
   so all three feel and behave the same way --- */
.user-picker-menu {
  position: fixed;
  z-index: 40;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--shape-sm);
  box-shadow: var(--elevation-3);
  max-height: 240px;
  overflow-y: auto;
}
.user-picker-option { display: flex; align-items: center; gap: 8px; padding: 6px 10px; cursor: pointer; font-size: 13px; }
.user-picker-option .avatar { width: 20px; height: 20px; font-size: 10px; flex-shrink: 0; }
.user-picker-option:hover, .user-picker-option.active { background: var(--surface-alt); }
.user-picker-option .muted { font-size: 11px; }
.user-picker-empty { padding: 8px 10px; font-size: 12px; color: var(--on-surface-variant); }

#panes { flex: 1; display: flex; min-height: 0; }
#editor-pane, #preview-pane { flex: 1; min-width: 0; overflow: auto; }
#editor-pane { border-right: 1px solid var(--border); }
#editor-pane.hidden { display: none; }
#preview { padding: 20px; max-width: 800px; margin: 0 auto; }

.CodeMirror { height: 100%; font-size: 13px; background: var(--surface); color: var(--on-surface); }
.CodeMirror-gutters { background: var(--surface-alt); border-color: var(--border); }

/* --- new-item dialog --- */

dialog form { display: flex; flex-direction: column; gap: 12px; padding: 20px; min-width: 280px; }
.dialog-actions { display: flex; justify-content: flex-end; align-items: center; gap: 8px; }
#new-form-status { flex: 1; font-size: 12px; color: var(--danger); }
/* pushes whatever comes after it (Cancel/Save) to the right, while a
   leading action like #logout-btn stays pinned left — so a standalone
   action in a dialog's footer doesn't read as part of the Cancel/Save pair */
.dialog-actions-spacer { flex: 1; }

/* --- settings dialog (profile-dialog): theme, session --- */
.settings-row { display: flex; align-items: center; justify-content: space-between; }

/* --- adaptive layout (M3 §3): Compact / Medium / Expanded — the
   sidebar-as-fixed-280px-column layout this app has used all along *is*
   already the Medium/Expanded pattern (a persistent nav rail/drawer next
   to the content); Compact is the one window-size class it didn't handle
   at all before this pass, where a permanent 280px column would eat most
   of a phone-width viewport. Below that breakpoint the sidebar becomes an
   overlay instead of a permanent column (starts collapsed — see app.js —
   and slides on top of the content instead of pushing it over), and the
   content margin drops from 24dp to the Compact spec's 16dp. This is a
   width-based breakpoint (not a device check), so a narrow desktop window
   gets the same treatment as a phone, which is the correct M3 behavior. */
@media (max-width: 599px) {
  #main { padding: var(--space-4) var(--space-4) var(--space-4) 56px; }
  #sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 15;
    box-shadow: var(--elevation-3);
  }
}

@media (min-width: 600px) and (max-width: 839px) {
  #main { padding: var(--space-5) var(--space-6) var(--space-5) 56px; }
}