/* Lingo Cards — tokens, reset, layout and navigation */

/* Lingo Cards — claude.ai-inspired styling */

:root {
  --bg: #F5F4EE;
  --bg-elev: #FAF9F5;
  --panel: #FFFFFF;
  --ink: #1F1E1D;
  --ink-muted: #6B6A65;
  --ink-subtle: #5F5D58;
  --ink-faint: #706E68;
  --ink-decorative: #9B9A93;
  --border: #E6E4D9;
  --border-strong: #D6D3C4;
  --accent: #C96442;
  --accent-hover: #B5573A;
  --accent-soft: #F4E5DD;
  --good: #2F7D5B;
  --good-soft: #DCEDE2;
  --warn: #B07C2E;
  --warn-soft: #F2E6CC;
  --bad: #B14B3F;
  --bad-soft: #F3DCD7;
  --new: #3E6A99;
  --new-soft: #DDE6F1;
  --shadow-sm: 0 1px 2px rgba(30, 27, 22, 0.04);
  --shadow-md: 0 4px 14px rgba(30, 27, 22, 0.06);
  --shadow-lg: 0 18px 40px -12px rgba(30, 27, 22, 0.18);
  --radius-sm: 7px;
  --radius: 10px;
  --radius-lg: 14px;
  --control-h: 40px;
  --control-h-sm: 34px;
  --control-h-xs: 30px;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Tiempos Text", "Charter", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

[data-theme="dark"] {
  --bg: #1E1D1B;
  --bg-elev: #262522;
  --panel: #2B2A26;
  --ink: #E8E6DF;
  --ink-muted: #AAA69C;
  --ink-subtle: #B5B1A6;
  --ink-faint: #9C988F;
  --ink-decorative: #807D74;
  --border: #3A3833;
  --border-strong: #494640;
  --accent: #E48160;
  --accent-hover: #F0916F;
  --accent-soft: #4A2F23;
  --good-soft: #2B4536;
  --warn-soft: #4A3C20;
  --bad-soft: #4A2D27;
  --new-soft: #2B3A4E;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 18px 40px -12px rgba(0, 0, 0, 0.55);
}

* { box-sizing: border-box; }

:where(button, a[href], input, select, textarea, [tabindex]:not([tabindex="-1"])):focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

:where(.icon-btn, .bare-icon-btn, .deck-icon-btn, .speaker-btn, .row-actions button, .dc-actions button, .practice-history-del) {
  position: relative;
  min-width: 40px;
  min-height: 40px;
  display: inline-grid;
  place-items: center;
  touch-action: manipulation;
}

html, body { margin: 0; padding: 0; height: 100%; overflow-x: hidden; touch-action: manipulation; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  overscroll-behavior-x: none;
}

@media (display-mode: standalone) {
  body { padding-top: env(safe-area-inset-top); }
  .modal { padding-top: env(safe-area-inset-top); }
}

button { font-family: inherit; font-size: inherit; color: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
input, select, textarea, button { -webkit-text-size-adjust: 100%; }

/* Disable the iOS/Safari double-tap-to-zoom gesture. `touch-action: manipulation`
   is applied page-wide on the root (above); this per-element rule is a
   belt-and-suspenders fallback for browsers that don't inherit it reliably.
   `manipulation` keeps panning/scrolling and text selection but removes the
   300ms double-tap zoom. */
button, a, .nav-item, .grade-btn, .reveal-btn, .btn, .icon-btn,
label, select, .info-tip, .stat-chip, .table-row { touch-action: manipulation; }

[hidden] { display: none !important; }

/* Layout */
#app {
  display: grid;
  grid-template-columns: 248px 1fr;
  min-height: 100vh;
  overflow-x: clip;
}

.sidebar {
  background: var(--bg);
  border-right: 1px solid var(--border);
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 6px 8px 4px;
}
.brand-mark {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: grid; place-items: center;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  box-shadow: var(--shadow-sm);
}
.brand-name { font-weight: 600; letter-spacing: -0.01em; }
.brand-sub { font-size: 12px; color: var(--ink-muted); }

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  background: transparent;
  border: none;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--ink-muted);
  text-align: left;
  transition: background .12s, color .12s;
}
.nav-item svg { width: 18px; height: 18px; flex: none; }
.nav-item:hover { background: var(--bg-elev); color: var(--ink); }
.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 500;
}

.sidebar-footer { margin-top: auto; }
.streak-pill {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink-muted);
}
.streak-pill b { color: var(--ink); }

.mobile-tabs { display: none; }

/* Main */
.main { display: flex; flex-direction: column; min-width: 0; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky; top: 0; z-index: 5;
  gap: 12px;
}
.topbar-left { display: flex; align-items: center; gap: 10px; }
.status-indicators {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 6px);
  right: 8px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 9px;
  pointer-events: none;
}
.save-status,
.pwa-status {
  width: 8px;
  height: 8px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 8px;
  font-size: 0;
  line-height: 1;
}
.save-status::before {
  content: "✓";
  color: var(--good);
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1;
  font-weight: 800;
  transform: scale(.75);
}
.save-status[data-status="saving"]::before {
  content: "!";
  color: var(--warn);
  animation: save-status-pulse .9s ease-in-out infinite alternate;
}
.save-status[data-status="error"]::before {
  content: "×";
  color: var(--bad);
}
@keyframes save-status-pulse { to { opacity: .28; } }
.pwa-status::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--good);
}
.pwa-status[data-status="offline"]::before { background: var(--bad); }
.pwa-status[data-status="update"]::before { background: var(--warn); }
.topbar-right { display: flex; align-items: center; gap: 12px; min-width: 0; flex-wrap: wrap; justify-content: flex-end; }
.topbar-tools { display: inline-flex; align-items: center; gap: 8px; margin-left: auto; }

.page-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.01em;
}
.deck-selector { display: flex; align-items: center; gap: 8px; }
.deck-selector label { color: var(--ink-muted); font-size: 13px; }
.deck-selector select {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  min-width: 200px;
}

.topbar-add { padding: 8px 14px; }
.topbar-add svg { width: 14px; height: 14px; }

.lang-switcher {
  display: inline-flex;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}
.lang-btn {
  background: transparent;
  border: none;
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ink-faint);
  border-radius: 4px;
  transition: background .12s, color .12s;
  font-family: var(--font-mono);
}
.lang-btn:hover { color: var(--ink); }
.lang-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
}