/* Tongue Twisters — same-origin classroom app. Tokens from the site. */

.tt {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(63, 163, 150, 0.16), transparent 55%),
    radial-gradient(900px 500px at 110% 0%, rgba(207, 168, 94, 0.12), transparent 50%),
    var(--charcoal-950);
}

.tt-bar {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem var(--gutter);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(12, 14, 18, 0.72);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.tt-bar__brand {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}
.tt-bar__brand strong { font-family: var(--font-display); font-size: 1.15rem; }
.tt-bar__brand span { color: var(--cream-dim); font-size: 0.78rem; }

.tt-nav {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-left: auto;
}
.tt-nav a,
.tt-nav button {
  border: 0;
  background: transparent;
  color: var(--cream-dim);
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  font-size: 0.88rem;
}
.tt-nav a:hover,
.tt-nav button:hover,
.tt-nav a.is-on,
.tt-nav button.is-on {
  color: var(--cream);
  background: rgba(246, 240, 227, 0.08);
}
.tt-nav a.is-on,
.tt-nav button.is-on { color: var(--gold-bright); }

.tt-user {
  color: var(--cream-dim);
  font-size: 0.8rem;
  white-space: nowrap;
}
.tt-user a { color: var(--gold-bright); }
.tt-signin {
  display: inline-flex;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  color: #0c0e12 !important;
  font-weight: 600;
}
.tt-banner {
  background: rgba(207, 168, 94, 0.12);
  border: 1px solid rgba(207, 168, 94, 0.35);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  margin-bottom: 1.1rem;
  color: var(--cream-soft);
}
.tt-banner a { color: var(--gold-bright); font-weight: 600; }

.tt-main {
  flex: 1;
  width: min(1100px, calc(100% - 2 * var(--gutter)));
  margin: 1.5rem auto 3rem;
}

.tt-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.tt-hero p { color: var(--cream-dim); max-width: 42rem; margin-top: 0.6rem; }

.tt-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.7rem;
  margin: 1.4rem 0 1.8rem;
}
.tt-stat {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
}
.tt-stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--gold-bright);
}
.tt-stat span { color: var(--cream-dim); font-size: 0.8rem; }

.tt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.9rem;
}
.tt-card {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.05rem 1.1rem;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.tt-card:hover { border-color: rgba(207, 168, 94, 0.45); }
.tt-card h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
.tt-card p { color: var(--cream-dim); font-size: 0.92rem; }
.tt-card .meta { margin-top: 0.55rem; font-size: 0.78rem; color: var(--teal-bright); }

.tt-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal-bright);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.tt-panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.1rem, 2.5vw, 1.8rem);
}

.tt-line {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.35;
  font-weight: 500;
  margin: 0.6rem 0 1.1rem;
}

.tt-tip {
  color: var(--cream-dim);
  border-left: 3px solid var(--gold);
  padding-left: 0.85rem;
  margin: 0.8rem 0 1.2rem;
}

.tt-actions { display: flex; flex-wrap: wrap; gap: 0.55rem; margin: 1rem 0; }

.tt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.15rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.tt-btn--gold {
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  color: #0c0e12;
}
.tt-btn--teal { background: var(--teal); color: #0c0e12; }
.tt-btn--ghost {
  background: rgba(246, 240, 227, 0.06);
  color: var(--cream);
  border: 1px solid var(--glass-border);
}
.tt-btn:disabled { opacity: 0.55; cursor: wait; }
.tt-btn.is-rec { background: #b23b4a; color: #fff; }

.tt-heard {
  min-height: 2.4rem;
  color: var(--cream-soft);
  background: rgba(12, 14, 18, 0.45);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  margin-top: 0.6rem;
}

.tt-score {
  margin-top: 1rem;
  font-size: 1.05rem;
}
.tt-score b { color: var(--gold-bright); font-family: var(--font-display); font-size: 1.6rem; }

.tt-chunks { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0.8rem 0; }
.tt-chip {
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  background: rgba(63, 163, 150, 0.16);
  color: var(--teal-bright);
  font-size: 0.82rem;
}

.tt-back {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--cream-dim);
  font-size: 0.9rem;
}
.tt-back:hover { color: var(--gold-bright); }

.tt-status {
  color: var(--cream-dim);
  font-size: 0.88rem;
  margin-top: 0.4rem;
}
.tt-status.is-ok { color: var(--teal-bright); }
.tt-status.is-warn { color: var(--sunrise-bright); }

.tt-pair {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.7rem;
  align-items: center;
  margin: 1rem 0;
}
.tt-pair button {
  min-height: 5.5rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  background: rgba(246, 240, 227, 0.04);
  color: inherit;
}
.tt-pair button.is-pick { border-color: var(--gold); background: rgba(207, 168, 94, 0.16); }
.tt-pair span { color: var(--cream-faint); }

.tt-pose {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.7rem;
  margin: 1rem 0;
}
.tt-pose div {
  background: rgba(12, 14, 18, 0.35);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.85rem;
}
.tt-pose dt { font-size: 0.75rem; color: var(--teal-bright); text-transform: uppercase; letter-spacing: 0.08em; }
.tt-pose dd { margin-top: 0.25rem; color: var(--cream-soft); }

.tt-script { display: grid; gap: 0.65rem; margin: 1rem 0; }
.tt-turn {
  background: rgba(12, 14, 18, 0.35);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  align-items: center;
}
.tt-turn.is-on { outline: 1px solid var(--gold); }
.tt-turn p { margin: 0; }

.tt-gate {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 2rem;
}
.tt-gate h1 { font-family: var(--font-display); font-weight: 500; margin-bottom: 0.6rem; }

.tt-lessons { margin-top: 2rem; }
.tt-lessons ul { display: grid; gap: 0.45rem; }
.tt-lessons li {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
}

@media (max-width: 720px) {
  .tt-bar { flex-wrap: wrap; }
  .tt-nav { margin-left: 0; width: 100%; }
  .tt-user { width: 100%; }
  .tt-pair { grid-template-columns: 1fr; }
  .tt-pair span { display: none; }
}