/* ============================================================
   Project Dashboard — Design System
   Handcrafted, no framework. Inspired by Linear / Vercel.
   ------------------------------------------------------------ */

/* ---------- Fonts ---------- */
@font-face {
  font-family: "Inter";
  src: url("/static/fonts/Inter-roman.var.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("/static/fonts/Inter-italic.var.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

/* ---------- Theme tokens ---------- */
:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-surface-alt: #f5f5f4;
  --color-surface-hover: #ebebea;
  --color-border: #e7e5e4;
  --color-border-strong: #d6d3d1;
  --color-text: #0c0a09;
  --color-text-muted: #57534e;
  --color-text-faint: #78716c;
  --color-accent: #0a0a0a;
  --color-accent-hover: #262626;
  --color-accent-fg: #fafafa;
  --color-danger: #dc2626;
  --color-danger-bg: #fee2e2;
  --color-warning: #d97706;
  --color-warning-bg: #fef3c7;
  --color-success: #16a34a;
  --color-success-bg: #dcfce7;
  --color-info: #0284c7;
  --color-info-bg: #e0f2fe;

  --color-health-green: #10b981;
  --color-health-yellow: #f59e0b;
  --color-health-red: #ef4444;

  /* Semantic accent hues shared with badges and kanban columns */
  --color-orange: #f97316;
  --color-violet: #8b5cf6;
  --color-teal:   #14b8a6;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 0 0 1px rgba(0, 0, 0, 0.04), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 0 0 1px rgba(0, 0, 0, 0.05), 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 0 0 1px rgba(0, 0, 0, 0.06), 0 16px 40px rgba(0, 0, 0, 0.08);

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 120ms;
  --dur: 180ms;

  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --header-h: 60px;
  --sidebar-w: 240px;
}

html.dark {
  --color-bg: #0a0a0a;
  --color-surface: #111111;
  --color-surface-alt: #171717;
  --color-surface-hover: #1f1f1f;
  --color-border: #262626;
  --color-border-strong: #3f3f3f;
  --color-text: #f5f5f4;
  --color-text-muted: #a8a29e;
  --color-text-faint: #78716c;
  --color-accent: #fafafa;
  --color-accent-hover: #e5e5e5;
  --color-accent-fg: #0a0a0a;
  --color-danger: #f87171;
  --color-danger-bg: #2a1113;
  --color-warning: #fbbf24;
  --color-warning-bg: #2a1e07;
  --color-success: #34d399;
  --color-success-bg: #052e1a;
  --color-info: #38bdf8;
  --color-info-bg: #082e3f;

  --color-health-green: #34d399;
  --color-health-yellow: #fbbf24;
  --color-health-red: #f87171;

  --color-orange: #fb923c;
  --color-violet: #a78bfa;
  --color-teal:   #2dd4bf;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 0 0 1px rgba(255, 255, 255, 0.04), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 0 0 1px rgba(255, 255, 255, 0.05), 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 0 0 1px rgba(255, 255, 255, 0.06), 0 16px 40px rgba(0, 0, 0, 0.5);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
[x-cloak] { display: none !important; }
body {
  min-height: 100vh;
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv11", "ss01", "ss03";
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
input, textarea, select, button { font-family: inherit; font-size: inherit; color: inherit; }
hr { border: 0; border-top: 1px solid var(--color-border); margin: 16px 0; }

h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 24px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }
p { margin: 0 0 8px; }
code { font-family: var(--font-mono); font-size: 0.9em; background: var(--color-surface-alt); padding: 1px 5px; border-radius: 4px; }

*:focus { outline: none; }
*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

::selection { background: color-mix(in srgb, var(--color-accent) 25%, transparent); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---------- Layout ---------- */
.app-shell { display: grid; grid-template-rows: var(--header-h) 1fr; min-height: 100vh; }
.app-header {
  display: flex; align-items: center; gap: 16px;
  padding: 0 20px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: saturate(180%) blur(6px);
}
.app-body { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: calc(100vh - var(--header-h)); }
.app-sidebar {
  border-right: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 20px 12px;
  position: sticky; top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
}
.app-main { padding: 28px 32px; min-width: 0; }
@media (max-width: 900px) {
  .app-body { grid-template-columns: 1fr; }
  .app-sidebar { display: none; }
  .app-main { padding: 20px; }
}

/* ---------- Brand / nav ---------- */
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; letter-spacing: -0.02em; font-size: 15px; }
.brand-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--color-accent); color: var(--color-accent-fg); display: grid; place-items: center; font-weight: 700; font-size: 13px; box-shadow: var(--shadow-sm); }
.brand-sub { color: var(--color-text-faint); font-weight: 500; font-size: 12px; letter-spacing: 0; }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }

.nav-section-title { padding: 8px 10px 6px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-faint); }
.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: var(--radius-sm);
  color: var(--color-text-muted); font-weight: 500; font-size: 13.5px;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.nav-link:hover { background: var(--color-surface-hover); color: var(--color-text); }
.nav-link.active { background: var(--color-surface-hover); color: var(--color-text); font-weight: 600; }
.nav-link svg { width: 16px; height: 16px; opacity: 0.9; flex: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface); color: var(--color-text);
  font-weight: 500; font-size: 13.5px; line-height: 1;
  transition: all var(--dur-fast) var(--ease);
  user-select: none;
}
.btn:hover { background: var(--color-surface-hover); }
.btn:active { transform: translateY(0.5px); }
.btn.btn-primary { background: var(--color-accent); color: var(--color-accent-fg); border-color: var(--color-accent); }
.btn.btn-primary:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); }
.btn.btn-ghost { background: transparent; border-color: transparent; color: var(--color-text-muted); }
.btn.btn-ghost:hover { background: var(--color-surface-hover); color: var(--color-text); }
.btn.btn-danger { color: var(--color-danger); border-color: transparent; background: transparent; }
.btn.btn-danger:hover { background: var(--color-danger-bg); }
.btn-sm { padding: 5px 10px; font-size: 12.5px; }
.btn-lg { padding: 10px 18px; font-size: 14.5px; }
.btn[disabled], .btn.disabled { opacity: 0.5; pointer-events: none; }
.btn svg { width: 14px; height: 14px; }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field-label { font-size: 12.5px; font-weight: 550; color: var(--color-text-muted); }
.field-hint { font-size: 12px; color: var(--color-text-faint); margin-top: 2px; }
.input, .textarea, .select {
  width: 100%; padding: 8px 12px;
  background: var(--color-surface); color: var(--color-text);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
  font-size: 13.5px; line-height: 1.4;
}
.textarea { min-height: 80px; resize: vertical; font-family: inherit; }
.input:focus, .textarea:focus, .select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 12%, transparent);
}
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 8px; border-top: 1px solid var(--color-border); padding-top: 14px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13.5px; padding: 4px 0; }
.checkbox { width: 16px; height: 16px; accent-color: var(--color-accent); }

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-xs);
}
.card-header { padding: 16px 18px; border-bottom: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-title { font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.card-sub { color: var(--color-text-faint); font-size: 12.5px; }
.card-body { padding: 18px; }
.card-footer { padding: 12px 18px; border-top: 1px solid var(--color-border); display: flex; gap: 8px; justify-content: flex-end; }

/* ---------- Tables ---------- */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--color-border); font-size: 13.5px; }
.table th { font-weight: 550; color: var(--color-text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.table tbody tr { transition: background var(--dur-fast) var(--ease); }
.table tbody tr:hover { background: var(--color-surface-alt); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; font-size: 11.5px; font-weight: 550;
  border-radius: 999px; line-height: 1.4;
  background: var(--color-surface-alt); color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; display: inline-block; }
.badge.badge-accent { background: color-mix(in srgb, var(--color-accent) 12%, transparent); color: var(--color-accent); border-color: color-mix(in srgb, var(--color-accent) 20%, transparent); }
.badge.badge-green { background: var(--color-success-bg); color: var(--color-success); border-color: color-mix(in srgb, var(--color-success) 20%, transparent); }
.badge.badge-amber { background: var(--color-warning-bg); color: var(--color-warning); border-color: color-mix(in srgb, var(--color-warning) 20%, transparent); }
.badge.badge-rose { background: var(--color-danger-bg); color: var(--color-danger); border-color: color-mix(in srgb, var(--color-danger) 20%, transparent); }
.badge.badge-sky { background: var(--color-info-bg); color: var(--color-info); border-color: color-mix(in srgb, var(--color-info) 20%, transparent); }
.badge.badge-violet { background: color-mix(in srgb, var(--color-violet) 10%, transparent); color: var(--color-violet); border-color: color-mix(in srgb, var(--color-violet) 22%, transparent); }
.badge.badge-orange { background: color-mix(in srgb, var(--color-orange) 10%, transparent); color: var(--color-orange); border-color: color-mix(in srgb, var(--color-orange) 22%, transparent); }
.badge.badge-stone { color: var(--color-text-muted); }
.badge.badge-emerald { background: var(--color-success-bg); color: var(--color-success); }

/* ---------- Health indicator ---------- */
.health { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 550; }
.health-dot { width: 9px; height: 9px; border-radius: 50%; box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 15%, transparent); display: inline-block; }
.health-green { color: var(--color-health-green); }
.health-yellow { color: var(--color-health-yellow); }
.health-red { color: var(--color-health-red); }

/* ---------- Avatar ---------- */
.avatar { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--color-surface-alt); color: var(--color-text-muted); font-size: 11px; font-weight: 600; border: 1px solid var(--color-border); }
.avatar-sm { width: 22px; height: 22px; font-size: 10px; }
.avatar-lg { width: 40px; height: 40px; font-size: 14px; }

/* ---------- Kanban ---------- */
.kanban { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(280px, 320px); gap: 14px; overflow-x: auto; padding-bottom: 14px; }
.kanban-col {
  --col-accent: var(--color-text-faint);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 2px solid color-mix(in srgb, var(--col-accent) 55%, var(--color-border));
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  max-height: calc(100vh - 220px);
  transition: border-color var(--dur-fast) var(--ease);
}
.kanban-col-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid color-mix(in srgb, var(--col-accent) 18%, var(--color-border));
  background: linear-gradient(to bottom,
    color-mix(in srgb, var(--col-accent) 7%, transparent),
    transparent 92%);
  border-top-left-radius: calc(var(--radius) - 1px);
  border-top-right-radius: calc(var(--radius) - 1px);
}
.kanban-col-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--col-accent) 55%, var(--color-text-muted));
}
.kanban-col-title .badge-dot {
  background: var(--col-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--col-accent) 18%, transparent);
}
.kanban-col-count {
  padding: 1px 7px; border-radius: 999px;
  background: color-mix(in srgb, var(--col-accent) 10%, var(--color-surface-alt));
  color: color-mix(in srgb, var(--col-accent) 65%, var(--color-text-muted));
  font-size: 11px; font-weight: 600;
}
.kanban-col-body { flex: 1; padding: 8px 10px 12px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; }

/* Semantic accent per column status — shared between project board and task board */
.kanban-col[data-status="backlog"],
.kanban-col[data-status="todo"]        { --col-accent: var(--color-text-faint); }
.kanban-col[data-status="planning"],
.kanban-col[data-status="progress"]    { --col-accent: var(--color-info); }
.kanban-col[data-status="development"] { --col-accent: var(--color-warning); }
.kanban-col[data-status="testing"]     { --col-accent: var(--color-orange); }
.kanban-col[data-status="review"]      { --col-accent: var(--color-violet); }
.kanban-col[data-status="done"]        { --col-accent: var(--color-success); }
.kanban-col[data-status="archived"]    { --col-accent: var(--color-text-faint); }
.kanban-card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 12px 14px; transition: all var(--dur-fast) var(--ease);
  box-shadow: var(--shadow-xs); cursor: grab;
  display: flex; flex-direction: column; gap: 6px;
}
.kanban-card:hover { border-color: var(--color-border-strong); box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.kanban-card:active { cursor: grabbing; }
.kanban-card.sortable-ghost { opacity: 0.4; border-style: dashed; background: var(--color-surface-alt); }
.kanban-card.sortable-chosen { box-shadow: var(--shadow-lg); transform: scale(1.01); }
.kanban-card-title { font-weight: 600; font-size: 13.5px; color: var(--color-text); line-height: 1.35; }
.kanban-card-meta { display: flex; flex-wrap: wrap; gap: 6px; font-size: 11.5px; color: var(--color-text-faint); align-items: center; }

.progress { height: 4px; background: var(--color-surface-alt); border-radius: 999px; overflow: hidden; }
.progress-bar { height: 100%; background: var(--color-accent); transition: width var(--dur) var(--ease); }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--color-border); margin-bottom: 20px; overflow-x: auto; }
.tab {
  padding: 10px 14px; font-size: 13.5px; color: var(--color-text-muted); font-weight: 500;
  border-bottom: 2px solid transparent; transition: all var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.tab:hover { color: var(--color-text); }
.tab.active { color: var(--color-text); border-bottom-color: var(--color-accent); font-weight: 600; }

/* ---------- Modals ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.4); backdrop-filter: blur(4px);
  display: grid; place-items: center; z-index: 100; padding: 20px;
  animation: fadeIn var(--dur) var(--ease);
}
.modal {
  background: var(--color-surface); border-radius: var(--radius-lg); border: 1px solid var(--color-border);
  width: 100%; max-width: 560px; max-height: calc(100vh - 40px); overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: scaleIn var(--dur) var(--ease);
}
.modal-header { padding: 18px 22px; border-bottom: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 15px; font-weight: 600; }
.modal-body { padding: 22px; }
.modal-footer { padding: 14px 22px; border-top: 1px solid var(--color-border); display: flex; gap: 8px; justify-content: flex-end; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.97); } to { opacity: 1; transform: scale(1); } }

/* ---------- Toasts ---------- */
.toast-stack { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 200; pointer-events: none; }
.toast {
  pointer-events: auto;
  background: var(--color-surface); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 12px 16px; box-shadow: var(--shadow-md); min-width: 280px; max-width: 420px;
  display: flex; align-items: flex-start; gap: 10px; font-size: 13px;
  animation: slideIn var(--dur) var(--ease);
}
.toast.success { border-left: 3px solid var(--color-success); }
.toast.danger { border-left: 3px solid var(--color-danger); }
.toast.warning { border-left: 3px solid var(--color-warning); }
.toast.info { border-left: 3px solid var(--color-info); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ---------- Utility ---------- */
.row { display: flex; gap: 12px; align-items: center; }
.row-between { display: flex; gap: 12px; align-items: center; justify-content: space-between; }
.col { display: flex; flex-direction: column; gap: 12px; }
.grid { display: grid; gap: 16px; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
@media (max-width: 700px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
}

.muted { color: var(--color-text-muted); }
.faint { color: var(--color-text-faint); }
.text-sm { font-size: 12.5px; }
.text-xs { font-size: 11.5px; }
.text-lg { font-size: 16px; }
.text-xl { font-size: 20px; }
.text-2xl { font-size: 24px; }
.text-3xl { font-size: 30px; letter-spacing: -0.02em; }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.mono { font-family: var(--font-mono); }
.tabular { font-variant-numeric: tabular-nums; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }
.ml-auto { margin-left: auto; }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.p-0 { padding: 0; }
.p-2 { padding: 8px; }
.p-4 { padding: 16px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }

.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }
.page-title { font-size: 22px; font-weight: 650; letter-spacing: -0.02em; }
.page-sub { color: var(--color-text-faint); margin-top: 4px; font-size: 13px; }
.page-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.divider { height: 1px; background: var(--color-border); margin: 16px 0; border: 0; }

/* ---------- Auth layout ---------- */
.auth-shell { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: var(--color-bg); }
.auth-card { width: 100%; max-width: 400px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 32px; }
.auth-brand { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-bottom: 24px; }
.auth-brand-mark { width: 44px; height: 44px; border-radius: 12px; background: var(--color-accent); color: var(--color-accent-fg); display: grid; place-items: center; font-weight: 700; font-size: 17px; box-shadow: var(--shadow-sm); }

/* ---------- Flash messages ---------- */
.flash-stack { position: fixed; top: 76px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 150; pointer-events: none; }
.flash { pointer-events: auto; background: var(--color-surface); border: 1px solid var(--color-border); border-left: 3px solid var(--color-text-muted); border-radius: var(--radius-sm); padding: 10px 14px; box-shadow: var(--shadow-md); font-size: 13px; min-width: 280px; max-width: 420px; animation: slideIn var(--dur) var(--ease); }
.flash.success { border-left-color: var(--color-success); }
.flash.danger { border-left-color: var(--color-danger); }
.flash.warning { border-left-color: var(--color-warning); }
.flash.info { border-left-color: var(--color-info); }

/* ---------- Misc ---------- */
.empty {
  border: 1px dashed var(--color-border-strong); border-radius: var(--radius);
  padding: 40px 24px; text-align: center; color: var(--color-text-faint);
  background: var(--color-surface);
}
.empty-title { color: var(--color-text-muted); font-weight: 600; margin-bottom: 4px; }

.stat {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius);
  padding: 16px 18px; display: flex; flex-direction: column; gap: 6px;
}
.stat-label { font-size: 12px; color: var(--color-text-faint); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; }
.stat-value { font-size: 26px; font-weight: 650; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat-hint { font-size: 12px; color: var(--color-text-faint); }

/* Markdown-rendered content */
.prose { line-height: 1.6; font-size: 14px; }
.prose h1 { font-size: 20px; margin-top: 16px; margin-bottom: 8px; }
.prose h2 { font-size: 17px; margin-top: 16px; margin-bottom: 6px; }
.prose h3 { font-size: 15px; margin-top: 14px; margin-bottom: 6px; }
.prose p { margin: 0 0 10px; }
.prose ul, .prose ol { padding-left: 20px; margin: 0 0 10px; }
.prose li { margin: 4px 0; }
.prose a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }
.prose code { background: var(--color-surface-alt); padding: 1px 6px; border-radius: 4px; }
.prose blockquote { margin: 8px 0; padding: 8px 12px; border-left: 3px solid var(--color-border-strong); color: var(--color-text-muted); background: var(--color-surface-alt); border-radius: 4px; }

/* Theme toggle button */
.theme-toggle { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px; border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text-muted); transition: all var(--dur-fast) var(--ease); }
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-hover); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
html.dark .theme-toggle .icon-sun { display: block; }
html.dark .theme-toggle .icon-moon { display: none; }

/* Timeline */
.timeline { position: relative; padding-left: 20px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: var(--color-border); }
.timeline-item { position: relative; padding-bottom: 18px; }
.timeline-item::before { content: ""; position: absolute; left: -18px; top: 6px; width: 10px; height: 10px; border-radius: 50%; background: var(--color-surface); border: 2px solid var(--color-border-strong); }
.timeline-item.achieved::before { background: var(--color-success); border-color: var(--color-success); }
.timeline-item .timeline-head { display: flex; align-items: center; gap: 10px; }
.timeline-item .timeline-date { font-size: 11.5px; color: var(--color-text-faint); }

/* Board overview */
.board-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.board-project {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: 20px; display: flex; flex-direction: column; gap: 14px;
  transition: all var(--dur) var(--ease); box-shadow: var(--shadow-xs);
}
.board-project:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--color-border-strong); }
.board-health-ribbon { height: 3px; border-radius: 2px; margin: -20px -20px 6px; }
.board-health-ribbon.green { background: var(--color-health-green); }
.board-health-ribbon.yellow { background: var(--color-health-yellow); }
.board-health-ribbon.red { background: var(--color-health-red); }

/* Permission matrix */
.perm-matrix { width: 100%; border-collapse: collapse; font-size: 13px; }
.perm-matrix th, .perm-matrix td { padding: 8px 10px; border-bottom: 1px solid var(--color-border); text-align: left; }
.perm-matrix td.cell-toggle { text-align: center; width: 90px; }
.perm-matrix th.cell-role { text-align: center; }
.perm-matrix tr.cat-header td { background: var(--color-surface-alt); font-weight: 600; color: var(--color-text-muted); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.04em; }