/* ============================================================
   TOKENS
   ============================================================ */
:root {
  --ink: #12141A;
  --ink-soft: #1B1E26;
  --ink-line: #2C303B;
  --paper: #EFE8D8;
  --paper-dim: #DED3B8;
  --paper-text: #12141A;
  --brass: #C08B3E;
  --brass-bright: #E0A857;
  --teal: #3E8B84;
  --teal-bright: #56B2A9;
  --red: #B4523F;
  --text-hi: #F2EEE4;
  --text-lo: #9A9CA8;

  --font-display: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow-deep: 0 12px 30px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink);
  color: var(--text-hi);
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: contain;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

#app {
  max-width: 560px;
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
}

button {
  font-family: inherit;
  cursor: pointer;
}

a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--brass-bright);
  outline-offset: 2px;
}

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

/* ============================================================
   HEADER
   ============================================================ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 10px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--text-lo);
  text-transform: uppercase;
  margin-top: 1px;
}

.icon-btn {
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  color: var(--text-hi);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.icon-btn:active { transform: scale(0.94); }

main {
  flex: 1;
  padding: 6px 20px 40px;
}

/* ============================================================
   REEL — elemento distintivo (bobina di nastro)
   ============================================================ */
.reel {
  display: inline-block;
  transform-origin: 50% 50%;
}
.reel--spin { animation: reel-spin 2.4s linear infinite; }
@keyframes reel-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* ============================================================
   HOME — scaffale dei livelli
   ============================================================ */
.hero {
  padding: 8px 0 20px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  line-height: 1.25;
  margin: 0 0 6px;
  font-weight: 400;
}
.hero p {
  color: var(--text-lo);
  margin: 0;
  font-size: 0.92rem;
}

.global-stats {
  display: flex;
  gap: 10px;
  margin: 18px 0 24px;
}
.stat-pill {
  flex: 1;
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 12px 10px;
  text-align: center;
}
.stat-pill .n {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--brass-bright);
  display: block;
}
.stat-pill .l {
  font-size: 0.68rem;
  color: var(--text-lo);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.level-shelf {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.level-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, var(--ink-soft), var(--ink));
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-lg);
  padding: 14px 16px;
  text-align: left;
  color: var(--text-hi);
  position: relative;
  overflow: hidden;
  transition: transform 0.15s ease;
}
.level-card:active { transform: scale(0.98); }

.level-card .badge {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--paper);
  background: var(--ink);
  border: 2px solid var(--brass);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.level-card .info { flex: 1; min-width: 0; }
.level-card .info .name {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 2px;
}
.level-card .info .meta {
  font-size: 0.78rem;
  color: var(--text-lo);
  font-family: var(--font-mono);
}

.level-card .due-flag {
  background: var(--brass);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 9px;
  border-radius: 999px;
  flex-shrink: 0;
}

.progress-track {
  position: absolute;
  bottom: 0; left: 0;
  height: 3px;
  background: var(--ink-line);
  width: 100%;
}
.progress-fill {
  height: 100%;
  background: var(--teal-bright);
}

/* ============================================================
   SESSION — schermata di esercizio
   ============================================================ */
.session-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.session-progress-bar {
  flex: 1;
  height: 6px;
  background: var(--ink-soft);
  border-radius: 999px;
  overflow: hidden;
}
.session-progress-bar > div {
  height: 100%;
  background: var(--brass);
  transition: width 0.3s ease;
}
.session-count {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-lo);
  white-space: nowrap;
}

.card-stage {
  min-height: 52vh;
  display: flex;
  align-items: stretch;
}

.card {
  width: 100%;
  background: var(--paper);
  color: var(--paper-text);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
  box-shadow: var(--shadow-deep);
  position: relative;
}

.card .type-tag {
  position: absolute;
  top: 16px;
  left: 24px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  font-weight: 700;
}

.prompt-lang {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #8a8368;
}

.prompt-text {
  font-family: var(--font-display);
  font-size: 1.7rem;
  line-height: 1.3;
}

.speak-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.speak-btn {
  background: var(--paper-dim);
  border: none;
  color: var(--paper-text);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.speak-btn:active { transform: scale(0.92); }

.answer-block {
  border-top: 1px dashed var(--paper-text);
  opacity: 0.15;
  margin: 4px 0;
}
.answer-visible .answer-block { opacity: 0.25; }

.answer-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.35;
}

.example-text {
  font-size: 0.92rem;
  line-height: 1.45;
  color: #4a4536;
  font-style: italic;
}
.example-text .it {
  display: block;
  font-style: normal;
  color: #6b6650;
  font-size: 0.85rem;
  margin-top: 3px;
}

.reveal-btn {
  margin-top: 4px;
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 999px;
  padding: 14px 20px;
  font-size: 1rem;
  font-weight: 600;
  width: 100%;
}
.reveal-btn:active { transform: scale(0.98); }

.mic-btn {
  background: var(--teal);
  color: var(--text-hi);
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
}
.mic-btn.listening { background: var(--red); }

.mic-feedback {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: #4a4536;
}

.rate-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 18px;
}
.rate-btn {
  border: none;
  border-radius: 12px;
  padding: 13px 4px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.rate-btn small { font-weight: 400; font-size: 0.62rem; opacity: 0.75; }
.rate-again { background: #D8887A; }
.rate-hard  { background: #E0C67E; }
.rate-good  { background: #8FC7A4; }
.rate-easy  { background: #6FB6D9; }
.rate-btn:active { transform: scale(0.95); }

/* ============================================================
   SESSION COMPLETE
   ============================================================ */
.complete-wrap {
  text-align: center;
  padding: 40px 10px;
}
.complete-wrap .reel { margin-bottom: 18px; }
.complete-wrap h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.5rem;
}
.complete-wrap p { color: var(--text-lo); }

.primary-btn {
  background: var(--brass);
  color: var(--ink);
  border: none;
  border-radius: 999px;
  padding: 14px 26px;
  font-weight: 700;
  font-size: 1rem;
  margin-top: 14px;
}
.primary-btn:active { transform: scale(0.97); }

.ghost-btn {
  background: transparent;
  border: 1px solid var(--ink-line);
  color: var(--text-hi);
  border-radius: 999px;
  padding: 13px 24px;
  font-size: 0.95rem;
  margin-top: 10px;
}

/* ============================================================
   STATS PAGE
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 18px 0 26px;
}
.stats-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 16px;
}
.stats-card .n {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  color: var(--teal-bright);
}
.stats-card .l {
  font-size: 0.72rem;
  color: var(--text-lo);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

.level-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ink-line);
}
.level-row .badge-sm {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--brass);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.level-row .bar {
  flex: 1;
  height: 8px;
  background: var(--ink-line);
  border-radius: 999px;
  overflow: hidden;
}
.level-row .bar > div { height: 100%; background: var(--brass); }
.level-row .pct {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-lo);
  width: 38px;
  text-align: right;
}

.danger-btn {
  background: transparent;
  border: 1px solid var(--red);
  color: var(--red);
  border-radius: 999px;
  padding: 12px 20px;
  font-size: 0.9rem;
  margin-top: 24px;
  width: 100%;
}

/* ============================================================
   BOTTOM NAV
   ============================================================ */
.bottom-nav {
  display: flex;
  border-top: 1px solid var(--ink-line);
  background: var(--ink-soft);
  padding: 8px env(safe-area-inset-right) calc(8px + env(safe-area-inset-bottom)) env(safe-area-inset-left);
}
.bottom-nav button {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-lo);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 0.68rem;
  padding: 6px 0;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.bottom-nav button.active { color: var(--brass-bright); }
.bottom-nav button .ic { font-size: 1.25rem; }

/* ============================================================
   TOAST / INSTALL BANNER
   ============================================================ */
.install-banner {
  position: fixed;
  bottom: 78px;
  left: 16px;
  right: 16px;
  max-width: 528px;
  margin: 0 auto;
  background: var(--brass);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: var(--shadow-deep);
  z-index: 50;
}
.install-banner span { font-size: 0.88rem; font-weight: 600; }
.install-banner .actions { display: flex; gap: 8px; }
.install-banner button {
  border: none;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.78rem;
  font-weight: 700;
}
.install-banner .yes { background: var(--ink); color: var(--paper); }
.install-banner .no { background: transparent; color: var(--ink); }

.empty-state {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-lo);
}
.empty-state .reel { margin-bottom: 16px; opacity: 0.6; }

/* ============================================================
   MODE SHEET
   ============================================================ */
.sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: flex-end;
  z-index: 60;
}
.sheet {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  border-radius: 22px 22px 0 0;
  padding: 10px 18px calc(24px + env(safe-area-inset-bottom));
}
.sheet-handle {
  width: 40px; height: 4px;
  background: var(--ink-line);
  border-radius: 999px;
  margin: 6px auto 14px;
}
.sheet h3 {
  font-family: var(--font-display);
  font-weight: 400;
  margin: 0 0 14px;
}
.sheet-option {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  background: var(--ink);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
  color: var(--text-hi);
}
.sheet-option .ic { font-size: 1.6rem; flex-shrink: 0; }
.sheet-option .txt { display: flex; flex-direction: column; gap: 2px; }
.sheet-option .txt small { color: var(--text-lo); font-size: 0.78rem; }
.sheet-option:active { transform: scale(0.98); }

/* ============================================================
   PIMSLEUR MODE PLAYER
   ============================================================ */
.pim-wrap { display: flex; flex-direction: column; }
.pim-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  padding: 30px 10px 20px;
  min-height: 40vh;
  justify-content: center;
}
.pim-phase {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brass-bright);
}
.pim-text-it {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-hi);
  min-height: 1.6em;
}
.pim-text-en {
  font-size: 1.15rem;
  color: var(--teal-bright);
  min-height: 1.5em;
}
.pim-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 10px;
}
.pim-hint {
  text-align: center;
  color: var(--text-lo);
  font-size: 0.8rem;
  margin: 18px 16px 0;
}