─────────────────────────────────────────────────────────────────── */

/* ─── Tokens (palette par défaut: Lavaux) ──────────────────────────── */
:root {
  --bg: #efe7d8;
  --bg-deep: #e6dcc9;
  --ink: #1a1a17;
  --ink-soft: #4a4a44;
  --ink-mute: rgba(26,26,23,.55);
  --line: rgba(26,26,23,.14);
  --line-strong: rgba(26,26,23,.28);
  --paper: #f6f0e3;
  --green: #0f3a2e;
  --green-deep: #082018;
  --terracotta: #b85a3c;
  --gold: #8a7a4a;
  --gold-soft: #b09a5e;
  --shadow-card: 0 1px 0 rgba(255,255,255,.6) inset, 0 30px 60px -20px rgba(15,58,46,.35), 0 8px 18px -8px rgba(15,58,46,.18);

  --serif: "Fraunces", "EB Garamond", Georgia, serif;
  --sans: "Inter Tight", "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

/* Variantes palette appliquées via [data-palette] */
[data-palette="vignoble"] {
  --bg:#efe7d8; --bg-deep:#e6dcc9; --paper:#f6f0e3;
  --green:#0f3a2e; --green-deep:#082018; --terracotta:#b85a3c; --gold:#8a7a4a; --gold-soft:#b09a5e;
}
[data-palette="leman"] {
  --bg:#ecece2; --bg-deep:#dfe0d3; --paper:#f4f3ea;
  --green:#234d4f; --green-deep:#102a2c; --terracotta:#9c3a2a; --gold:#7e6b3e; --gold-soft:#a08e58;
}
[data-palette="carnotzet"] {
  --bg:#f1e6d2; --bg-deep:#e6d9c0; --paper:#fbf3df;
  --green:#2c3a1f; --green-deep:#1a230f; --terracotta:#a8472a; --gold:#9a833f; --gold-soft:#bda04f;
}

/* Pairings typographiques */
[data-typo="fraunces"] { --serif:"Fraunces", Georgia, serif; --sans:"Inter Tight", system-ui, sans-serif; }
[data-typo="eb-garamond"] { --serif:"EB Garamond", Georgia, serif; --sans:"Manrope", system-ui, sans-serif; }
[data-typo="cormorant"] { --serif:"Cormorant Garamond", Georgia, serif; --sans:"Inter", system-ui, sans-serif; }

/* Mode sombre */
[data-theme="dark"] {
  --bg:#161916; --bg-deep:#0e110f; --paper:#1c211d;
  --ink:#ece6d6; --ink-soft:#c5bfae; --ink-mute:rgba(236,230,214,.5);
  --line:rgba(236,230,214,.12); --line-strong:rgba(236,230,214,.28);
  --green:#7fb59f; --green-deep:#a9d3c0; --terracotta:#e08a6a; --gold:#d4b06a; --gold-soft:#e0c98c;
  --shadow-card: 0 1px 0 rgba(255,255,255,.04) inset, 0 30px 60px -20px rgba(0,0,0,.7), 0 8px 18px -8px rgba(0,0,0,.5);
}

/* ─── Reset & base ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  font-feature-settings: "ss01", "cv11";
  letter-spacing: -0.005em;
  overflow-x: hidden;
}

/* Texture papier subtile (toggle via [data-texture="off"]) */
.paper-grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  opacity: 0.55;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1.2' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.08  0 0 0 0 0.08  0 0 0 0 0.06  0 0 0 0.05 0'/></filter><rect width='240' height='240' filter='url(%23n)'/></svg>");
  mix-blend-mode: multiply;
}
[data-theme="dark"] .paper-grain { mix-blend-mode: screen; opacity: .35; }
[data-texture="off"] .paper-grain { display: none; }

button { font-family: inherit; color: inherit; -webkit-tap-highlight-color: transparent; }
html { overscroll-behavior-y: none; }

/* ─── Layout principal ─────────────────────────────────────────────── */
.app {
  position: relative;
  z-index: 2;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 64px 1fr;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "sidebar header"
    "sidebar main"
    "sidebar footer";
}
@media (max-width: 820px) {
  .app {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
  }
}

/* ─── Sidebar A-Z (desktop) ────────────────────────────────────────── */
.sidebar {
  grid-area: sidebar;
  border-right: 1px solid var(--line);
  padding: 28px 0 28px;
  display: flex; flex-direction: column; align-items: center;
  gap: 0;
  position: sticky; top: 0; height: 100dvh; overflow-y: auto;
  background: var(--bg);
}
.sidebar-mark {
  width: 32px; height: 32px; display: grid; place-items: center;
  margin-bottom: 18px;
  color: var(--green);
}
.sidebar-letters { display: flex; flex-direction: column; align-items: stretch; gap: 1px; flex: 1; width: 100%; }
.alpha-btn {
  appearance: none; background: transparent; border: 0;
  font-family: var(--serif); font-size: 13px; font-weight: 500;
  color: var(--ink-mute);
  padding: 5px 0; cursor: default; letter-spacing: .04em;
  transition: color .15s ease, background .15s ease;
  text-align: center;
  border-left: 2px solid transparent;
}
.alpha-btn:hover:not(:disabled) { color: var(--ink); }
.alpha-btn[aria-pressed="true"] {
  color: var(--terracotta);
  border-left-color: var(--terracotta);
  font-weight: 600;
}
.alpha-btn:disabled { opacity: .25; cursor: not-allowed; }
.alpha-btn.all { font-size: 10px; font-family: var(--sans); text-transform: uppercase; letter-spacing: .12em; padding: 8px 0 12px; color: var(--ink-soft); border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.alpha-btn.all[aria-pressed="true"] { color: var(--terracotta); border-left-color: transparent; border-bottom-color: var(--terracotta); }
@media (max-width: 820px) { .sidebar { display: none; } }

/* Alpha bar mobile */
.alpha-mobile {
  grid-area: alpha-mobile;
  display: none;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky; top: 64px; z-index: 5;
}
.alpha-mobile-scroll {
  display: flex; gap: 2px; overflow-x: auto; padding: 8px 16px;
  scrollbar-width: none;
}
.alpha-mobile-scroll::-webkit-scrollbar { display: none; }
.alpha-mobile .alpha-btn { padding: 8px 10px; min-width: 32px; flex-shrink: 0; border-left: 0; border-bottom: 2px solid transparent; }
.alpha-mobile .alpha-btn[aria-pressed="true"] { border-bottom-color: var(--terracotta); border-left-color: transparent; }
@media (max-width: 820px) { .alpha-mobile { display: block; } }

/* ─── Header ───────────────────────────────────────────────────────── */
.header {
  grid-area: header;
  padding: 24px 36px 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky; top: 0; z-index: 10;
}
@media (max-width: 820px) { .header { padding: 16px 20px 14px; gap: 12px; grid-template-columns: 1fr auto; } }

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  font-style: italic;
  letter-spacing: -.02em;
  font-variation-settings: "opsz" 144, "SOFT" 100;
  color: var(--green);
}
.brand-sub {
  font-size: 10px; text-transform: uppercase; letter-spacing: .18em;
  color: var(--ink-mute); font-weight: 500;
}
@media (max-width: 820px) { .brand-sub { display: none; } }

.search {
  position: relative; max-width: 360px; justify-self: center; width: 100%;
}
.search input {
  width: 100%; padding: 10px 14px 10px 36px;
  font: inherit; font-size: 13px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.search input::placeholder { color: var(--ink-mute); }
.search input:focus { border-color: var(--green); box-shadow: 0 0 0 3px color-mix(in oklab, var(--green) 12%, transparent); }
.search-icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--ink-mute); pointer-events: none; }
.search-clear {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  appearance: none; background: transparent; border: 0; color: var(--ink-mute);
  width: 22px; height: 22px; border-radius: 50%; cursor: default;
  display: grid; place-items: center;
}
.search-clear:hover { background: var(--line); color: var(--ink); }
@media (max-width: 820px) { .search { max-width: 100%; grid-column: 1 / -1; order: 3; } }

.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  appearance: none; background: transparent; border: 1px solid var(--line);
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  color: var(--ink-soft); cursor: default;
  transition: all .15s ease;
}
.icon-btn:hover { border-color: var(--line-strong); color: var(--ink); background: var(--paper); }
.icon-btn[aria-pressed="true"] { background: var(--green); color: var(--paper); border-color: var(--green); }
.icon-btn[data-variant="terracotta"][aria-pressed="true"] { background: var(--terracotta); border-color: var(--terracotta); color: var(--paper); }

/* ─── Main / Carte ─────────────────────────────────────────────────── */
.main {
  grid-area: main;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 36px 16px;
  gap: 24px;
}
@media (max-width: 820px) {
  .main {
    flex: 1;
    min-height: 0;
    padding: 16px;
    gap: 12px;
    align-items: stretch;
    justify-content: flex-start;
  }
}

.card-stage {
  perspective: 1800px;
  width: min(560px, 100%);
  height: min(72vh, 600px);
  position: relative;
}
@media (max-width: 820px) {
  .card-stage {
    width: 100%;
    flex: 1;
    height: auto;
    min-height: 0;
  }
}

.card-empty {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  text-align: center; padding: 40px;
  font-family: var(--serif); font-style: italic; color: var(--ink-mute);
  font-size: 18px;
}

.card-flipper {
  position: absolute; inset: 0;
  transform-style: preserve-3d;
  transition: transform .7s cubic-bezier(.6,.05,.25,1);
  transform-origin: center;
  will-change: transform;
}
.card-flipper.is-flipped { transform: rotateY(180deg) rotateX(2deg); }
.card-flipper.is-flipped.entering { transform: rotateY(180deg) rotateX(2deg) translateZ(0); }
.card-flipper.is-navigating { transition: none; }

.card-face {
  position: absolute; inset: 0;
  border-radius: 6px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex; flex-direction: column;
  overflow: hidden;
  cursor: default;
}
.card-face.back { transform: rotateY(180deg); }

/* Cadre intérieur dictionnaire */
.card-frame {
  position: absolute; inset: 14px;
  border: 1px solid var(--line);
  pointer-events: none;
}
.card-frame::before, .card-frame::after {
  content: ""; position: absolute; background: var(--gold-soft);
}
.card-frame::before { top:-1px; left: 24px; right: 24px; height: 1px; }
.card-frame::after { bottom:-1px; left: 24px; right: 24px; height: 1px; }

/* Croix vaudoise discrète en filigrane */
.vaud-cross {
  position: absolute; bottom: 28px; right: 28px;
  width: 22px; height: 22px;
  color: var(--terracotta);
  opacity: .35;
  pointer-events: none;
}
[data-theme="dark"] .vaud-cross { opacity: .55; }

.card-meta {
  position: absolute; top: 28px; left: 32px; right: 32px;
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-mute);
}
.card-num { font-family: var(--serif); font-style: italic; font-size: 12px; letter-spacing: 0; text-transform: none; color: var(--gold); }

/* Recto */
.card-front-body {
  flex: 1;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  padding: 64px 48px;
  text-align: center;
  gap: 18px;
}
.word {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 7vw, 76px);
  line-height: 1;
  letter-spacing: -.025em;
  color: var(--ink);
  font-variation-settings: "opsz" 144, "SOFT" 50;
  text-wrap: balance;
}
.word-rule {
  width: 36px; height: 1px; background: var(--terracotta);
}
.tap-hint {
  position: absolute; bottom: 36px; left: 0; right: 0;
  text-align: center;
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-mute);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.tap-hint kbd {
  font-family: var(--mono); font-size: 9px;
  padding: 2px 6px; border-radius: 3px;
  background: var(--bg-deep); border: 1px solid var(--line);
  letter-spacing: 0;
}

/* Verso */
.card-back-body {
  flex: 1;
  padding: 56px 44px 48px;
  display: flex; flex-direction: column; gap: 22px;
  overflow-y: auto;
}
.back-word {
  font-family: var(--serif); font-style: italic;
  font-size: 22px; color: var(--green);
  font-weight: 500; letter-spacing: -.01em;
  display: flex; align-items: baseline; gap: 10px;
}
.back-word::after {
  content: ""; flex: 1; height: 1px; background: var(--line);
  transform: translateY(-4px);
}
.definition {
  font-family: var(--serif);
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.45;
  color: var(--ink);
  text-wrap: pretty;
  letter-spacing: -.005em;
}
.definition::first-letter {
  font-size: 1.3em; color: var(--terracotta);
}
.example-block {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.example-label {
  font-size: 9px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold); font-weight: 600;
  margin-bottom: 8px;
}
.example {
  font-family: var(--serif); font-style: italic;
  font-size: 15px; line-height: 1.55;
  color: var(--ink-soft);
  text-wrap: pretty;
}
.example.empty { color: var(--ink-mute); font-style: italic; opacity: .6; }

/* ─── Nav controls ─────────────────────────────────────────────────── */
.nav-row {
  display: flex; align-items: center; gap: 14px;
  width: min(560px, 100%);
  justify-content: space-between;
}
.nav-btn {
  appearance: none; background: var(--paper);
  border: 1px solid var(--line);
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  color: var(--ink-soft); cursor: default;
  transition: all .15s ease;
}
.nav-btn:hover { border-color: var(--green); color: var(--green); transform: translateY(-1px); }
.nav-btn:disabled { opacity: .35; cursor: not-allowed; transform: none; border-color: var(--line); color: var(--ink-mute); }

.nav-center { display: flex; gap: 8px; align-items: center; }
.flip-btn {
  appearance: none;
  background: var(--green); color: var(--paper);
  border: 1px solid var(--green);
  padding: 11px 22px; border-radius: 999px;
  font-family: var(--sans); font-size: 12px; font-weight: 500;
  letter-spacing: .04em; text-transform: uppercase;
  cursor: default;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all .15s ease;
}
.flip-btn:hover { background: var(--green-deep); }

/* ─── Footer / progression ─────────────────────────────────────────── */
.footer {
  grid-area: footer;
  padding: 16px 36px 24px;
  border-top: 1px solid var(--line);
  background: var(--bg);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}
@media (max-width: 820px) { .footer { padding: 14px 16px 18px; grid-template-columns: 1fr; gap: 10px; } }

.progress-wrap { display: flex; align-items: center; gap: 12px; min-width: 0; }
.progress-bar {
  flex: 1; height: 3px; background: var(--line);
  border-radius: 2px; overflow: hidden; position: relative;
}
.progress-fill {
  position: absolute; top:0; left:0; bottom:0;
  background: linear-gradient(90deg, var(--green), var(--gold));
  transition: width .5s cubic-bezier(.6,.05,.25,1);
}
.progress-label {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink-soft); white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.progress-label b { color: var(--terracotta); font-weight: 600; }

.review-toggle, .random-toggle {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: transparent;
  font-size: 11px; letter-spacing: .04em; cursor: default;
  color: var(--ink-soft); transition: all .15s ease;
}
.review-toggle:hover, .random-toggle:hover { border-color: var(--line-strong); color: var(--ink); }
.review-toggle[aria-pressed="true"] { background: var(--terracotta); color: var(--paper); border-color: var(--terracotta); }
.random-toggle[aria-pressed="true"] { background: var(--green); color: var(--paper); border-color: var(--green); }

.footer-modes { display: flex; gap: 8px; justify-self: end; }
@media (max-width: 820px) { .footer-modes { justify-self: stretch; justify-content: center; } }

.counter-badge {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-mute);
  white-space: nowrap;
  justify-self: center;
}
@media (max-width: 820px) { .counter-badge { display: none; } }

/* ─── Markers row (above card) ─────────────────────────────────────── */
.markers-row {
  display: flex; gap: 10px; align-items: center;
  width: min(560px, 100%);
  justify-content: flex-end;
}
.marker-btn {
  appearance: none; background: transparent; border: 1px solid var(--line);
  padding: 6px 12px; border-radius: 999px;
  font-size: 11px; letter-spacing: .02em;
  color: var(--ink-soft); cursor: default;
  display: inline-flex; align-items: center; gap: 6px;
  transition: all .15s ease;
}
.marker-btn:hover { border-color: var(--line-strong); color: var(--ink); }
.marker-btn[aria-pressed="true"][data-kind="learned"] { background: var(--green); color: var(--paper); border-color: var(--green); }
.marker-btn[aria-pressed="true"][data-kind="review"] { background: var(--terracotta); color: var(--paper); border-color: var(--terracotta); }

/* ─── Easter egg modal ─────────────────────────────────────────────── */
.celebration-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: radial-gradient(circle at 50% 40%, color-mix(in oklab, var(--green) 80%, transparent), color-mix(in oklab, var(--green-deep) 95%, transparent));
  display: grid; place-items: center;
  animation: fadeIn .6s ease;
}
.celebration-card {
  background: var(--paper);
  border-radius: 8px;
  padding: 56px 64px;
  max-width: 460px;
  text-align: center;
  box-shadow: 0 30px 80px rgba(0,0,0,.4);
  position: relative;
  border: 1px solid var(--gold-soft);
  animation: popIn .8s cubic-bezier(.2,.8,.2,1);
}
.celebration-card::before, .celebration-card::after {
  content: ""; position: absolute; left: 24px; right: 24px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-soft), transparent);
}
.celebration-card::before { top: 8px; }
.celebration-card::after { bottom: 8px; }
.celebration-glasses {
  display: flex; justify-content: center; gap: 8px;
  margin-bottom: 24px;
  animation: clinkParent 1.2s ease 0.4s;
}
.glass {
  width: 48px; height: 60px;
  display: grid; place-items: end center;
  position: relative;
}
.glass.left { animation: clinkLeft 1.2s ease 0.4s; transform-origin: bottom right; }
.glass.right { animation: clinkRight 1.2s ease 0.4s; transform-origin: bottom left; }
.celebration-title {
  font-family: var(--serif); font-style: italic;
  font-size: 56px; line-height: 1;
  color: var(--green);
  letter-spacing: -.03em;
  font-variation-settings: "opsz" 144, "SOFT" 100;
  margin: 0 0 16px;
}
.celebration-quote {
  font-family: var(--serif);
  font-size: 16px; line-height: 1.5;
  color: var(--ink-soft);
  text-wrap: pretty;
  margin: 0 0 28px;
}
.celebration-attr {
  font-size: 10px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold); font-weight: 600;
  margin-bottom: 28px;
}
.celebration-close {
  appearance: none; background: var(--green); color: var(--paper);
  border: 0; padding: 12px 28px; border-radius: 999px;
  font-family: var(--sans); font-size: 12px; font-weight: 500;
  letter-spacing: .08em; text-transform: uppercase; cursor: default;
}
.celebration-close:hover { background: var(--green-deep); }

.confetti {
  position: absolute; width: 6px; height: 14px;
  pointer-events: none;
  animation: confettiFall 3s linear infinite;
}

/* ─── Keyboard shortcuts hint ──────────────────────────────────────── */
.shortcuts {
  display: none;
  position: fixed; bottom: 84px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: var(--bg);
  padding: 10px 18px; border-radius: 6px;
  font-size: 11px; letter-spacing: .04em;
  display: flex; gap: 16px;
  z-index: 50;
  opacity: 0;
  transition: opacity .3s ease;
}
.shortcuts.visible { opacity: .92; }
.shortcuts kbd {
  font-family: var(--mono);
  background: rgba(255,255,255,.15);
  padding: 1px 6px; border-radius: 3px;
  margin-right: 4px;
}

/* ─── Animations ───────────────────────────────────────────────────── */
@keyframes fadeIn { from { opacity: 0 } to { opacity: 1 } }
@keyframes popIn {
  0% { opacity: 0; transform: scale(.85) translateY(20px); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes clinkLeft {
  0%, 100% { transform: rotate(0); }
  40% { transform: rotate(18deg); }
  55% { transform: rotate(8deg); }
}
@keyframes clinkRight {
  0%, 100% { transform: rotate(0); }
  40% { transform: rotate(-18deg); }
  55% { transform: rotate(-8deg); }
}
@keyframes confettiFall {
  0% { transform: translateY(-20vh) rotateZ(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotateZ(720deg); opacity: 0; }
}
@keyframes slideInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-flipper.entering .card-face { animation: slideInUp .35s ease; }

/* ─── Empty state ──────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  font-family: var(--serif);
  color: var(--ink-mute);
}
.empty-state h3 {
  font-style: italic; font-size: 28px; margin: 0 0 12px;
  color: var(--ink-soft);
  font-weight: 400;
}
.empty-state p { font-size: 14px; font-family: var(--sans); }
.empty-state button {
  margin-top: 18px;
  appearance: none; background: var(--terracotta); color: var(--paper);
  border: 0; padding: 10px 20px; border-radius: 999px;
  font: inherit; font-family: var(--sans); font-size: 12px;
  letter-spacing: .06em; text-transform: uppercase; cursor: default;
}

/* ─── Loading ──────────────────────────────────────────────────────── */
.loading {
  position: fixed; inset: 0; display: grid; place-items: center;
  background: var(--bg);
  font-family: var(--serif); font-style: italic;
  color: var(--ink-mute);
  z-index: 100;
}
.loading-dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: currentColor; margin: 0 2px;
  animation: dotPulse 1.4s infinite ease-in-out both;
}
.loading-dot:nth-child(2) { animation-delay: .2s; }
.loading-dot:nth-child(3) { animation-delay: .4s; }
@keyframes dotPulse {
  0%, 80%, 100% { opacity: .3; transform: scale(.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* ─── Mobile tweaks panel position ─────────────────────────────────── */
@media (max-width: 820px) {
  .twk-panel { right: 8px !important; bottom: 8px !important; width: calc(100vw - 16px) !important; max-width: 320px; }
}

/* ─── Mobile touch optimisations ───────────────────────────────────── */
@media (max-width: 820px) {
  .markers-row { width: 100%; }
  .nav-row { width: 100%; }
  .marker-btn { min-height: 40px; padding: 8px 16px; }
  .nav-btn { width: 52px; height: 52px; }
  .alpha-mobile .alpha-btn { min-height: 40px; min-width: 36px; }
  .kbd-hint { display: none; }
  .card-flipper { user-select: none; }
}