theme.css

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600&family=Inter:wght@400;500;600&family=League+Spartan:wght@500;600;700&display=swap');

:root {
  /* Dark palette inspired by Duolingo's app shell.
     Variable names kept stable from the light-theme era so existing rules
     just cascade — `cream` is the page bg (now near-black), `ink` is the
     primary text (now white), etc. */
  --rhotic-cream: #131F24;
  --rhotic-ink: #FFFFFF;
  --rhotic-text-mute: #94A3B8;
  --rhotic-coral: #3B82F6;
  --rhotic-coral-dark: #2563EB;
  --rhotic-pink: rgba(59, 130, 246, 0.12);
  --rhotic-butter: rgba(217, 119, 6, 0.18);
  --rhotic-mist: rgba(255, 255, 255, 0.08);
  --rhotic-shadow: rgba(0, 0, 0, 0.45);
  --rhotic-green: #22C55E;
  --rhotic-green-light: rgba(34, 197, 94, 0.16);
  --rhotic-amber: #F59E0B;
  --rhotic-amber-light: rgba(245, 158, 11, 0.16);
  --rhotic-purple: #A78BFA;
  --rhotic-purple-light: rgba(167, 139, 250, 0.16);
  --rhotic-bg-side: #0F1A1F;
  --rhotic-bg-card: #1F2C2F;
  --rhotic-border: rgba(255, 255, 255, 0.07);
}

* { box-sizing: border-box; }

body, .gradio-container, .gradio-container * {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

html, body {
  background: var(--rhotic-cream) !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* Container fills the entire viewport — sidebar pins to left edge,
   main content gets the rest. No max-width, no centering. */
.gradio-container {
  background: var(--rhotic-cream) !important;
  color: var(--rhotic-ink) !important;
  max-width: 100% !important;
  width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1.6 !important;
  min-height: 100vh !important;
}
.gradio-container > .main,
.gradio-container > .wrap,
.gradio-container > .contain {
  max-width: 100% !important;
  padding: 0 !important;
  margin: 0 !important;
}

/* Kill the default Gradio footer chrome */
footer, .gradio-container footer { display: none !important; }

/* ================================================================
   APP SHELL — sidebar (left) + main content area (right).
   Duolingo-style fixed navigation, dark background.
   ================================================================ */
/* Shell — full viewport, fixed left sidebar + scrolling main area.
   Sidebar uses position:fixed (not sticky) so it never shifts when
   Gradio re-renders content inside the main area. */
.rhotic-shell {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  gap: 0 !important;
  flex-wrap: nowrap !important;
  background: var(--rhotic-cream) !important;
}
.rhotic-sidebar {
  position: fixed !important;
  left: 0 !important;
  top: 0 !important;
  bottom: 0 !important;
  width: 240px !important;
  height: 100vh !important;
  background: var(--rhotic-bg-side) !important;
  border-right: 1px solid var(--rhotic-border) !important;
  padding: 1.5rem 0.9rem !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 0.45rem !important;
  z-index: 100 !important;
  min-width: 240px !important;
  max-width: 240px !important;
  flex-shrink: 0 !important;
  flex-grow: 0 !important;
}
/* Main column starts after the fixed 240px sidebar */
.rhotic-main-col {
  margin-left: 240px !important;
  padding: 2rem 2.5rem 2.5rem 2.5rem !important;
  max-width: 920px !important;
  width: auto !important;
  box-sizing: border-box !important;
}

/* Wordmark sits at top of sidebar */
.rhotic-wordmark {
  font-family: 'League Spartan', sans-serif;
  font-weight: 600;
  font-size: 1.65rem;
  color: var(--rhotic-coral);
  letter-spacing: -0.01em;
  text-transform: lowercase;
  line-height: 1;
  padding: 0.25rem 0.85rem 1.25rem 0.85rem;
  border-bottom: 1px solid var(--rhotic-border);
  margin-bottom: 0.85rem;
}

/* Sidebar tabs (rendered as gr.HTML, clicks delegated through JS bridge) */
.rhotic-tab {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.7rem 0.85rem;
  border-radius: 12px;
  cursor: pointer;
  color: var(--rhotic-text-mute);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  user-select: none;
  border: 2px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.rhotic-tab:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--rhotic-ink);
}
.rhotic-tab.active {
  background: var(--rhotic-pink);
  color: var(--rhotic-coral);
  border-color: rgba(59, 130, 246, 0.35);
}
.rhotic-tab-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}
.rhotic-tab-icon svg { width: 20px; height: 20px; }
.rhotic-tab-label { line-height: 1; }

/* Sidebar footer (small About link + disclaimer) */
.rhotic-side-footer {
  margin-top: auto;
  padding: 0.85rem;
  font-size: 0.72rem;
  color: var(--rhotic-text-mute);
  border-top: 1px solid var(--rhotic-border);
  line-height: 1.45;
}
.rhotic-side-footer .rhotic-about-link {
  background: transparent;
  border: none;
  color: var(--rhotic-coral);
  cursor: pointer;
  padding: 0;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.rhotic-side-footer .rhotic-about-link:hover { text-decoration: underline; }

/* Practice-view two-column layout (renamed from .rhotic-main → so the
   `.rhotic-main` name is free for the right-side shell content). */
.rhotic-practice-grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 2.5rem;
  align-items: start;
}
@media (max-width: 768px) {
  .rhotic-practice-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ---------------- Cards / panels ----------------
   Only elements that explicitly opt into .rhotic-card get the white-paper
   card treatment. Stripping the global .block rule kills the "every
   gr.HTML in its own card" effect that was littering the home view. */
.rhotic-card {
  background: var(--rhotic-bg-card) !important;
  border-radius: 20px !important;
  box-shadow: 0 4px 24px var(--rhotic-shadow) !important;
  border: 1px solid var(--rhotic-border) !important;
  padding: 2rem 1.75rem !important;
}
.gradio-container .gr-panel,
.gradio-container .block {
  background: transparent !important;
  box-shadow: none !important;
  border: none !important;
}

/* ---------------- Word + IPA display ---------------- */
.rhotic-word {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 5rem;
  color: var(--rhotic-ink);
  text-align: center;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 0 0;
}
@media (max-width: 768px) { .rhotic-word { font-size: 3.5rem; } }

.rhotic-ipa {
  font-family: 'Inter', sans-serif;
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--rhotic-ink);
  opacity: 0.6;
  text-align: center;
  margin: 0.35rem 0 1.75rem 0;
  letter-spacing: 0.5px;
}

/* ---------------- Buttons ---------------- */
.gradio-container button.lg,
.gradio-container button.primary,
.gradio-container .gr-button-primary,
.gradio-container button[data-testid="primary"] {
  background: var(--rhotic-coral) !important;
  color: white !important;
  border: none !important;
  border-radius: 999px !important;
  font-family: 'Inter', sans-serif !important;
  font-weight: 600 !important;
  font-size: 1.0625rem !important;
  padding: 0.9rem 2.25rem !important;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease !important;
  box-shadow: 0 2px 8px var(--rhotic-shadow) !important;
}
.gradio-container button.primary:hover,
.gradio-container .gr-button-primary:hover {
  transform: scale(1.02);
  background: var(--rhotic-coral-dark) !important;
}
.gradio-container button.secondary,
.gradio-container .gr-button-secondary {
  background: var(--rhotic-cream) !important;
  color: var(--rhotic-ink) !important;
  border: 1.5px solid var(--rhotic-ink) !important;
  border-radius: 999px !important;
  font-weight: 600 !important;
}
.gradio-container button:disabled,
.gradio-container button.primary:disabled,
.gradio-container .gr-button-primary:disabled {
  opacity: 0.5 !important;
  cursor: not-allowed !important;
  transform: none !important;
}

/* ---------------- Banner (HF_TOKEN missing) ---------------- */
.rhotic-banner {
  background: var(--rhotic-pink);
  color: var(--rhotic-ink);
  border-radius: 12px;
  padding: 0.875rem 1.25rem;
  font-size: 0.9375rem;
  margin: 0 0 1.5rem 0;
}

/* ---------------- Speech bubble under Rho ---------------- */
.rhotic-bubble-wrap {
  display: flex;
  justify-content: center;
  padding: 0 1rem;
}
.rhotic-bubble {
  background: white;
  color: var(--rhotic-ink);
  border-radius: 18px;
  padding: 1rem 1.25rem;
  box-shadow: 0 4px 18px var(--rhotic-shadow);
  font-family: 'Fraunces', serif;
  font-size: 1.0625rem;
  line-height: 1.5;
  position: relative;
  margin: 1rem auto 0;
  max-width: 320px;
  font-style: italic;
  min-height: 2rem;
  transition: opacity 0.3s ease;
}
.rhotic-bubble::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 12px solid white;
}
.rhotic-bubble.hidden { opacity: 0; pointer-events: none; }

/* "Ready for next word" badge */
.rhotic-ready-badge {
  background: var(--rhotic-coral);
  color: white;
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  margin: 0.75rem auto 0;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
  text-align: center;
  max-width: 320px;
  animation: rhotic-ready-pulse 2s ease-in-out infinite;
  transition: opacity 0.3s ease;
}
.rhotic-ready-badge.hidden {
  opacity: 0;
  pointer-events: none;
  animation: none;
}
.rhotic-ready-badge strong { font-weight: 700; }

@keyframes rhotic-ready-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.03); }
}
@media (prefers-reduced-motion: reduce) {
  .rhotic-ready-badge { animation: none; }
}

.rhotic-character-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 0;
}

/* ---------------- Transcript ---------------- */
.rhotic-transcript {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  max-height: 360px;
  overflow-y: auto;
  padding: 0.25rem;
  margin-top: 1rem;
}
.rhotic-transcript:empty::before {
  content: 'Your practice turns will appear here.';
  display: block;
  color: var(--rhotic-ink);
  opacity: 0.4;
  font-size: 0.875rem;
  text-align: center;
  padding: 2rem 0;
}
.rhotic-transcript::-webkit-scrollbar { width: 6px; }
.rhotic-transcript::-webkit-scrollbar-thumb {
  background: var(--rhotic-mist);
  border-radius: 3px;
}
.rhotic-transcript::-webkit-scrollbar-track { background: transparent; }

.rhotic-turn {
  border-radius: 14px;
  padding: 0.75rem 1rem;
  display: flex;
  gap: 0.625rem;
  align-items: flex-start;
  font-size: 0.9375rem;
  line-height: 1.45;
}
.rhotic-turn.user {
  background: var(--rhotic-cream);
  border: 1px solid var(--rhotic-mist);
}
.rhotic-turn.wren { background: var(--rhotic-pink); }
.rhotic-turn .turn-icon {
  font-size: 1rem;
  flex-shrink: 0;
  line-height: 1.45;
}
.rhotic-turn .turn-content { color: var(--rhotic-ink); flex: 1; }
.rhotic-turn.user .turn-content {
  font-family: 'Fraunces', serif;
  font-weight: 500;
}
.rhotic-turn .turn-dot {
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 50%;
  margin-left: 0.5rem;
  vertical-align: middle;
}
.rhotic-turn .turn-dot.correct   { background: var(--rhotic-butter); border: 1px solid #d9c280; }
.rhotic-turn .turn-dot.incorrect { background: var(--rhotic-coral); }
.rhotic-turn .turn-dot.unclear   { background: var(--rhotic-mist); border: 1px solid #ccd2d4; }

/* ---------------- Audio player styling ---------------- */
.gradio-container .audio-container {
  background: var(--rhotic-cream) !important;
  border-radius: 12px !important;
  border: 1px solid var(--rhotic-mist) !important;
}

/* ---------------- Footer ---------------- */
.rhotic-footer {
  text-align: center;
  color: var(--rhotic-ink);
  opacity: 0.5;
  font-size: 0.8125rem;
  padding-top: 1.5rem;
  margin-top: 2.5rem;
  border-top: 1px solid var(--rhotic-mist);
}

/* ---------------- Modal (about) ---------------- */
.rhotic-modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(27, 58, 75, 0.4);
  z-index: 9999;
  display: none;
  align-items: center; justify-content: center;
}
.rhotic-modal-backdrop.open { display: flex; }
.rhotic-modal {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  max-width: 460px;
  width: 90%;
  box-shadow: 0 12px 48px rgba(0,0,0,0.2);
}
.rhotic-modal h2 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  color: var(--rhotic-coral);
  margin: 0 0 0.5rem 0;
}
.rhotic-modal p {
  color: #1B3A4B;
  font-size: 0.9375rem;
  line-height: 1.6;
  margin: 0.5rem 0;
}
.rhotic-modal-close {
  margin-top: 1rem;
  background: var(--rhotic-coral);
  color: white;
  border: none;
  border-radius: 999px;
  padding: 0.5rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
}

/* ---------------- Accessibility ---------------- */
.gradio-container button:focus-visible,
.gradio-container input:focus-visible,
.gradio-container a:focus-visible,
.gradio-container [role="button"]:focus-visible {
  outline: 2px solid var(--rhotic-coral) !important;
  outline-offset: 2px;
}

/* ---------------- Hide state bridges visually ---------------- */
#rhotic-state-bridge, #rhotic-correct-bridge { display: none !important; }

/* ---------------- Tighten internal Gradio spacing ---------------- */
.gradio-container .block .label { font-weight: 500; color: var(--rhotic-ink); opacity: 0.7; }
.gradio-container .gap, .gradio-container .row, .gradio-container .column { gap: 0.75rem; }

/* ================================================================
   CURRICULUM PROGRESS BAR
   ================================================================ */
#rhotic-progress-wrap {
  margin: 0 0 1.5rem 0;
}
.rhotic-progress-bar {
  background: var(--rhotic-pink);
  border-radius: 16px;
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.rhotic-level-info {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.rhotic-level-label {
  font-family: 'League Spartan', sans-serif;
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--rhotic-coral);
}
.rhotic-desc {
  font-size: 0.875rem;
  color: var(--rhotic-ink);
  opacity: 0.65;
}
.rhotic-xp-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.rhotic-xp {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--rhotic-ink);
}
.rhotic-streak {
  background: var(--rhotic-amber-light);
  color: var(--rhotic-amber);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}
.rhotic-progress-track {
  background: rgba(15, 42, 77, 0.1);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
}
.rhotic-progress-fill {
  height: 100%;
  background: var(--rhotic-coral);
  border-radius: 999px;
  transition: width 0.4s ease;
}
.rhotic-progress-label {
  font-size: 0.75rem;
  color: var(--rhotic-ink);
  opacity: 0.55;
}

/* ================================================================
   LEVEL-UP NOTIFICATION
   ================================================================ */
#rhotic-levelup-wrap:empty { display: none; }
.rhotic-levelup {
  background: linear-gradient(135deg, #2563EB 0%, #7c3aed 100%);
  color: white;
  border-radius: 16px;
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  text-align: center;
  margin: 0 0 1.25rem 0;
  animation: rhotic-levelup-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes rhotic-levelup-pop {
  from { transform: scale(0.85); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
.rhotic-levelup-icon { font-size: 1.75rem; }
.rhotic-levelup-text { font-weight: 700; font-size: 1.0625rem; }
.rhotic-levelup-desc { font-size: 0.875rem; opacity: 0.85; }

/* ================================================================
   EXERCISE TYPE BADGES
   ================================================================ */
.rhotic-word-wrap { text-align: center; }
.rhotic-ex-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  margin: 0.75rem 0 0.25rem 0;
}
.rhotic-ex-badge.syllable {
  background: var(--rhotic-green-light);
  color: var(--rhotic-green);
}
.rhotic-ex-badge.word {
  background: var(--rhotic-pink);
  color: var(--rhotic-coral);
}
.rhotic-ex-badge.phrase {
  background: var(--rhotic-purple-light);
  color: var(--rhotic-purple);
}

/* ================================================================
   BUTTON ROW ("Hear it" + "Next →")
   ================================================================ */
.rhotic-btn-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.5rem;
}
.rhotic-btn-row > div,
.rhotic-btn-row > button { flex: 1; }

/* Hear-it button secondary style */
#hear-btn {
  background: var(--rhotic-cream) !important;
  color: var(--rhotic-coral) !important;
  border: 1.5px solid var(--rhotic-coral) !important;
  font-weight: 600 !important;
}
#hear-btn:hover {
  background: var(--rhotic-pink) !important;
}

/* ================================================================
   APPROACHING / SUCCESS state indicators in transcript
   ================================================================ */
.rhotic-turn .turn-dot.approaching {
  background: var(--rhotic-amber-light);
  border: 1px solid var(--rhotic-amber);
}

/* ================================================================
   LEARN / TWISTER / PROFILE VIEWS — dark cards on dark bg
   ================================================================ */

/* Welcome card — greeting strip at the top of the Learn view */
.rhotic-welcome-card {
  background: var(--rhotic-bg-card);
  border-radius: 18px;
  border: 1px solid var(--rhotic-border);
  padding: 1.5rem 1.75rem;
  margin: 0 0 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.rhotic-welcome-eyebrow {
  font-family: 'League Spartan', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--rhotic-coral);
}
.rhotic-welcome-name {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
  color: var(--rhotic-ink);
}
.rhotic-welcome-hint {
  font-size: 0.88rem;
  color: var(--rhotic-text-mute);
}

/* Resume card */
#rhotic-resume-wrap:empty { display: none; }
.rhotic-resume-card {
  background: var(--rhotic-bg-card);
  border-radius: 16px;
  border: 1px solid var(--rhotic-border);
  padding: 1rem 1.25rem;
  margin: 0 0 0.75rem 0;
}
.rhotic-resume-label {
  font-family: 'League Spartan', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rhotic-coral);
  margin-bottom: 0.5rem;
}
.rhotic-resume-stats { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }
.rhotic-resume-level {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--rhotic-ink);
  margin-right: 0.25rem;
}
.rhotic-resume-chip {
  background: var(--rhotic-pink);
  color: var(--rhotic-coral);
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}
.rhotic-resume-btn {
  margin: 0 0 1.25rem 0 !important;
  width: 100% !important;
}
.rhotic-resume-btn button {
  width: 100% !important;
  border-radius: 999px !important;
  font-weight: 600 !important;
  padding: 0.85rem 1.5rem !important;
}

/* Section title above the path / above each tab content */
.rhotic-pick-title {
  font-family: 'League Spartan', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rhotic-text-mute);
  margin: 1.25rem 0 0.75rem 0;
  text-align: center;
}

/* ================================================================
   PROFILE TAB
   ================================================================ */
.rhotic-profile-card {
  background: var(--rhotic-bg-card);
  border-radius: 20px;
  border: 1px solid var(--rhotic-border);
  padding: 1.75rem 1.75rem;
  margin: 0 0 1rem 0;
}
.rhotic-profile-empty {
  text-align: center;
}
.rhotic-profile-empty h2 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.6rem;
  color: var(--rhotic-ink);
  margin: 0 0 0.5rem 0;
}
.rhotic-profile-empty p {
  color: var(--rhotic-text-mute);
  font-size: 0.95rem;
  max-width: 400px;
  margin: 0 auto 1.25rem auto;
  line-height: 1.55;
}
.rhotic-profile-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.rhotic-profile-avatar {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: var(--rhotic-coral);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-family: 'League Spartan', sans-serif;
  font-weight: 700;
  font-size: 1.6rem;
  flex-shrink: 0;
}
.rhotic-profile-name {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--rhotic-ink);
  margin: 0;
}
.rhotic-profile-handle {
  font-size: 0.85rem;
  color: var(--rhotic-text-mute);
}
.rhotic-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 0 0 1.5rem 0;
}
.rhotic-stat {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--rhotic-border);
  border-radius: 14px;
  padding: 0.85rem 0.75rem;
  text-align: center;
}
.rhotic-stat .val {
  font-family: 'League Spartan', sans-serif;
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--rhotic-coral);
  line-height: 1.1;
}
.rhotic-stat .lbl {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--rhotic-text-mute);
  margin-top: 0.3rem;
}
.rhotic-badges-title {
  font-family: 'League Spartan', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rhotic-text-mute);
  margin: 0.5rem 0 0.75rem 0;
}
.rhotic-badges {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.6rem;
}
.rhotic-badge {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--rhotic-border);
  border-radius: 14px;
  padding: 0.75rem 0.4rem;
  text-align: center;
  font-size: 0.7rem;
  color: var(--rhotic-text-mute);
  font-weight: 600;
}
.rhotic-badge .icon {
  font-size: 1.7rem;
  display: block;
  margin-bottom: 0.25rem;
  filter: grayscale(1) opacity(0.45);
}
.rhotic-badge.earned {
  background: var(--rhotic-pink);
  border-color: rgba(59,130,246,0.35);
  color: var(--rhotic-coral);
}
.rhotic-badge.earned .icon { filter: none; }

/* ================================================================
   TWISTER TAB
   ================================================================ */
.rhotic-twister-card {
  background: var(--rhotic-bg-card);
  border-radius: 20px;
  border: 1px solid var(--rhotic-border);
  padding: 1.75rem;
  margin: 0 0 1rem 0;
  text-align: center;
}
.rhotic-twister-eyebrow {
  font-family: 'League Spartan', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--rhotic-coral);
  margin-bottom: 0.5rem;
}
.rhotic-twister-text {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.8rem;
  color: var(--rhotic-ink);
  line-height: 1.3;
  letter-spacing: -0.005em;
  margin: 0.5rem auto 0.6rem auto;
  max-width: 540px;
}
.rhotic-twister-meta {
  font-size: 0.82rem;
  color: var(--rhotic-text-mute);
}

/* ================================================================
   WINDING PATH — Duolingo-style level picker
   ================================================================ */
#rhotic-path-wrap { margin: 1rem auto 0.5rem auto; }
.rhotic-path {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
  padding: 2rem 0 1.5rem 0;
  max-width: 540px;
  margin: 0 auto;
}
.rhotic-path-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  user-select: none;
}
.rhotic-path-node.locked { cursor: not-allowed; }
.rhotic-path-node:not(.locked):hover .rhotic-node-circle {
  transform: translateY(-4px);
  filter: brightness(1.05);
}
.rhotic-node-circle {
  width: 108px;
  height: 108px;
  border-radius: 50%;
  background: var(--rhotic-coral);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  font-weight: 700;
  border: 5px solid white;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.25),
              inset 0 -6px 0 rgba(0, 0, 0, 0.14);
  transition: transform 0.2s ease, filter 0.2s ease;
}
.rhotic-path-node.done .rhotic-node-circle {
  background: var(--rhotic-green);
  box-shadow: 0 4px 14px rgba(22, 163, 74, 0.22),
              inset 0 -5px 0 rgba(0, 0, 0, 0.14);
}
.rhotic-path-node.current .rhotic-node-circle {
  background: var(--rhotic-coral);
  box-shadow: 0 0 0 8px var(--rhotic-pink),
              0 8px 24px rgba(37, 99, 235, 0.4),
              inset 0 -6px 0 rgba(0, 0, 0, 0.16);
  animation: rhotic-node-pulse 2.2s ease-in-out infinite;
}
@keyframes rhotic-node-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}
.rhotic-path-node.open .rhotic-node-circle {
  background: white;
  color: var(--rhotic-coral);
  border: 4px solid var(--rhotic-coral);
  box-shadow: 0 4px 14px var(--rhotic-shadow),
              inset 0 -4px 0 rgba(0, 0, 0, 0.05);
}
.rhotic-path-node.locked .rhotic-node-circle {
  background: var(--rhotic-mist);
  color: #94a3b8;
  border: 4px solid white;
  box-shadow: 0 2px 6px var(--rhotic-shadow),
              inset 0 -4px 0 rgba(0, 0, 0, 0.05);
}
.rhotic-node-label {
  margin-top: 0.7rem;
  font-family: 'League Spartan', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--rhotic-ink);
  text-align: center;
  max-width: 200px;
  line-height: 1.2;
  letter-spacing: 0.01em;
}
.rhotic-node-sub {
  margin-top: 0.2rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--rhotic-ink);
  opacity: 0.55;
  text-align: center;
}
.rhotic-path-node.current .rhotic-node-sub {
  color: var(--rhotic-coral);
  opacity: 1;
}
.rhotic-path-node.done .rhotic-node-sub {
  color: var(--rhotic-green);
  opacity: 0.85;
}
.rhotic-path-node.locked .rhotic-node-label,
.rhotic-path-node.locked .rhotic-node-sub {
  opacity: 0.45;
}

/* Hidden Gradio buttons used as click-bridges for path nodes */
.rhotic-hidden-btn,
.rhotic-hidden-row,
.rhotic-bridge-hidden {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* XP / streak chips above the path */
.rhotic-path-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin: 0.25rem auto 0 auto;
  max-width: 540px;
}
.rhotic-path-banner .chip {
  background: var(--rhotic-pink);
  color: var(--rhotic-coral);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.35rem 0.95rem;
  border-radius: 999px;
}
.rhotic-path-banner .chip.streak {
  background: var(--rhotic-amber-light);
  color: var(--rhotic-amber);
}

/* ================================================================
   DEV PANEL — toggled by Shift+D
   ================================================================ */
#rhotic-dev-modal {
  position: fixed !important;
  inset: 0 !important;
  background: rgba(15, 42, 77, 0.45) !important;
  z-index: 10000 !important;
  display: none !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  margin: 0 !important;
  max-width: none !important;
}
#rhotic-dev-modal.open { display: flex !important; }
#rhotic-dev-modal .rhotic-dev-card {
  background: white !important;
  border-radius: 20px !important;
  padding: 1.5rem 1.75rem 1.25rem 1.75rem !important;
  max-width: 420px !important;
  width: 92% !important;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.2) !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 0.5rem !important;
}
.rhotic-dev-card h2 {
  font-family: 'League Spartan', sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--rhotic-coral);
  margin: 0 0 0.25rem 0;
}
.rhotic-dev-card p {
  font-size: 0.85rem;
  color: var(--rhotic-ink);
  opacity: 0.6;
  margin: 0 0 0.5rem 0;
}
.rhotic-dev-hint {
  font-size: 0.72rem;
  color: var(--rhotic-ink);
  opacity: 0.45;
  text-align: center;
  margin-top: 0.5rem;
}

/* ── Back-to-path button (practice view top) ── */
.rhotic-practice-top { margin: 0 0 1rem 0; }
.rhotic-back-btn {
  max-width: 160px !important;
  flex: 0 0 auto !important;
}
.rhotic-back-btn button {
  background: var(--rhotic-bg-card) !important;
  border: 1px solid var(--rhotic-border) !important;
  color: var(--rhotic-ink) !important;
  font-weight: 600 !important;
  border-radius: 999px !important;
  padding: 0.5rem 1.1rem !important;
  font-size: 0.85rem !important;
  white-space: nowrap !important;
}
.rhotic-back-btn button:hover {
  border-color: var(--rhotic-coral) !important;
  background: rgba(255, 255, 255, 0.06) !important;
}

/* Cap content width inside each view so the right side of the main
   column has breathing room (mirrors Duolingo's centered content).  */
.rhotic-learn,
.rhotic-twister,
.rhotic-profile,
.rhotic-practice {
  max-width: 920px !important;
  margin: 0 auto !important;
  width: 100% !important;
}

/* ── Responsive path on small screens ── */
@media (max-width: 540px) {
  .rhotic-path { gap: 1.25rem; padding: 1.25rem 0; }
  .rhotic-node-circle { width: 92px; height: 92px; font-size: 2rem; }
}

/* ================================================================
   MINIMAL PRACTICE VIEW — back-icon + progress on top, big blob in
   the middle, Listen + big Record button at the bottom.
   ================================================================ */

/* Top row: back icon + progress bar side-by-side */
.rhotic-practice-top {
  display: flex !important;
  align-items: center !important;
  gap: 0.85rem !important;
  margin: 0 0 1rem 0 !important;
}
.rhotic-practice-top > *:first-child { flex: 0 0 auto !important; }
.rhotic-practice-top > *:last-child  { flex: 1 1 auto !important; }
.rhotic-practice-top #rhotic-progress-wrap { margin: 0 !important; }

/* Compact back-arrow icon button */
.rhotic-back-icon-btn {
  flex: 0 0 auto !important;
  max-width: 44px !important;
  min-width: 44px !important;
}
.rhotic-back-icon-btn button {
  background: var(--rhotic-bg-card) !important;
  border: 1px solid var(--rhotic-border) !important;
  color: var(--rhotic-ink) !important;
  width: 44px !important;
  height: 44px !important;
  padding: 0 !important;
  border-radius: 50% !important;
  font-size: 1.2rem !important;
  font-weight: 600 !important;
  line-height: 1 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}
.rhotic-back-icon-btn button:hover {
  border-color: var(--rhotic-coral) !important;
  background: rgba(255, 255, 255, 0.06) !important;
}

/* Word display — centered, smaller than the path view */
#rhotic-word-display {
  display: block !important;
  margin: 1.25rem 0 0 0 !important;
  text-align: center !important;
}
#rhotic-word-display .rhotic-word-wrap { display: block !important; }
#rhotic-word-display .rhotic-word {
  font-size: 3.5rem !important;
  color: var(--rhotic-ink) !important;
  display: block !important;
  text-align: center !important;
}
#rhotic-word-display .rhotic-ex-badge { margin-top: 0; }
#rhotic-ipa-display { margin: 0.25rem 0 0 0; }
#rhotic-ipa-display .rhotic-ipa {
  color: var(--rhotic-text-mute) !important;
  display: block !important;
  text-align: center !important;
}

/* Hide audio widgets fully — we drive them via state events */
.rhotic-audio-hidden {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* ================================================================
   PRACTICE ACTIONS — Listen (small ear) · Record (big mic) · Next (arrow)
   Centered row, big mic is the focal point.
   ================================================================ */
.rhotic-actions-row {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 1.75rem !important;
  margin: 2rem auto 0 auto !important;
  padding: 0.5rem 0 !important;
  position: relative !important;
  z-index: 5 !important;
}

/* Small circular icon buttons (Listen, Next) */
.rhotic-icon-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--rhotic-bg-card);
  border: 1.5px solid var(--rhotic-border);
  color: var(--rhotic-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease,
              background 0.15s ease, color 0.15s ease;
  box-shadow: 0 2px 6px var(--rhotic-shadow);
}
.rhotic-icon-btn:hover {
  border-color: var(--rhotic-coral);
  color: var(--rhotic-coral);
  transform: translateY(-1px);
}
.rhotic-icon-btn svg { width: 24px; height: 24px; }

.rhotic-listen-circle { color: var(--rhotic-coral); border-color: var(--rhotic-coral); }
.rhotic-listen-circle:hover { background: var(--rhotic-pink); }

.rhotic-next-circle { color: var(--rhotic-text-mute); }

/* Big circular Record button — center of action row */
.rhotic-record-btn {
  position: relative;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: var(--rhotic-coral);
  color: white;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.4),
              inset 0 -6px 0 rgba(0, 0, 0, 0.2);
  transition: transform 0.15s ease, filter 0.15s ease;
}
.rhotic-record-btn:hover { filter: brightness(1.08); transform: translateY(-2px); }
.rhotic-record-btn:active { transform: translateY(1px); }
.rhotic-record-btn svg { width: 38px; height: 38px; }
.rhotic-record-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

/* Recording state: red, pulsing — clearly says "tap me to stop". */
.rhotic-record-btn.recording {
  background: #DC2626;
  box-shadow: 0 0 0 8px rgba(220, 38, 38, 0.22),
              0 12px 28px rgba(220, 38, 38, 0.45),
              inset 0 -6px 0 rgba(0, 0, 0, 0.22);
  animation: rhotic-record-pulse 1.4s ease-in-out infinite;
}
.rhotic-record-btn.recording::after,
.rhotic-record-btn.thinking::after {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  font-weight: 700;
  white-space: nowrap;
}
.rhotic-record-btn.recording::after {
  content: 'TAP TO STOP';
  color: #FCA5A5;
}
.rhotic-record-btn.thinking::after {
  content: 'SCORING…';
  color: var(--rhotic-text-mute);
}
@keyframes rhotic-record-pulse {
  0%, 100% { box-shadow: 0 0 0 8px  rgba(220, 38, 38, 0.22),
                          0 12px 28px rgba(220, 38, 38, 0.45),
                          inset 0 -6px 0 rgba(0, 0, 0, 0.22); }
  50%      { box-shadow: 0 0 0 14px rgba(220, 38, 38, 0.10),
                          0 14px 32px rgba(220, 38, 38, 0.55),
                          inset 0 -6px 0 rgba(0, 0, 0, 0.22); }
}
.rhotic-record-btn.thinking {
  background: var(--rhotic-text-mute);
  cursor: wait;
  animation: none;
  box-shadow: 0 4px 14px var(--rhotic-shadow),
              inset 0 -5px 0 rgba(0, 0, 0, 0.18);
}
@media (max-width: 540px) {
  .rhotic-actions-row { gap: 1.2rem; }
  .rhotic-record-btn { width: 80px; height: 80px; }
  .rhotic-record-btn svg { width: 32px; height: 32px; }
  .rhotic-icon-btn { width: 48px; height: 48px; }
  .rhotic-icon-btn svg { width: 20px; height: 20px; }
}

/* Speech bubble — sits to the RIGHT of the blob, tail pointing left.
   Force dark text on the white bubble (the dark theme's --rhotic-ink is
   white, so we have to hardcode the readable color here). */
.rhotic-bubble,
.rhotic-bubble * {
  color: #0F172A !important;
}
.rhotic-bubble {
  position: relative !important;
  background: white !important;
  border-radius: 18px !important;
  padding: 0.85rem 1.1rem !important;
  font-family: 'Fraunces', serif !important;
  font-size: 1rem !important;
  line-height: 1.45 !important;
  font-style: italic !important;
  max-width: 280px !important;
  margin: 0 !important;
  box-shadow: 0 4px 18px var(--rhotic-shadow) !important;
  transition: opacity 0.25s ease !important;
}
.rhotic-bubble::before {
  content: '' !important;
  position: absolute !important;
  left: -10px !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  width: 0 !important; height: 0 !important;
  border-top: 9px solid transparent !important;
  border-bottom: 9px solid transparent !important;
  border-right: 12px solid white !important;
  border-left: 0 !important;
}
.rhotic-bubble.hidden { opacity: 0 !important; pointer-events: none !important; }
@media (max-width: 540px) {
  .rhotic-bubble { max-width: 92% !important; }
  .rhotic-bubble::before {
    left: 50% !important;
    top: -10px !important;
    transform: translateX(-50%) !important;
    border-right: 9px solid transparent !important;
    border-left:  9px solid transparent !important;
    border-bottom: 12px solid white !important;
    border-top: 0 !important;
  }
}

/* Dark-mode tweak: practice progress bar should sit cleanly on dark bg */
.rhotic-progress-bar {
  background: var(--rhotic-bg-card) !important;
  border: 1px solid var(--rhotic-border) !important;
}

/* ================================================================
   CELEBRATION MODAL — grey overlay + bottom-right blob + confetti
   Triggered on correct answer or Shift+S. Press Enter to dismiss.
   ================================================================ */
#rhotic-celebrate-modal {
  position: fixed !important;
  inset: 0 !important;
  background: rgba(0, 0, 0, 0.62) !important;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 10001 !important;
  display: none !important;
  overflow: hidden !important;
  pointer-events: auto !important;
}
#rhotic-celebrate-modal.open { display: block !important; }

.rhotic-celebrate-blob {
  position: absolute;
  bottom: 1.5rem;
  right: 2.5rem;
  width: 260px;
  height: 260px;
  object-fit: contain;
  z-index: 2;
  animation: rhotic-celebrate-pop 0.65s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes rhotic-celebrate-pop {
  from { transform: scale(0.35) translateY(60px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}
@media (max-width: 540px) {
  .rhotic-celebrate-blob { width: 180px; height: 180px; right: 1rem; }
}

.rhotic-celebrate-text {
  position: absolute;
  bottom: 3rem;
  left: 4rem;
  z-index: 2;
  animation: rhotic-celebrate-fadein 0.5s ease 0.15s both;
}
.rhotic-celebrate-title {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 3.5rem;
  color: white;
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0 0 0.85rem 0;
}
.rhotic-celebrate-hint {
  font-family: 'League Spartan', sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 700;
}
@keyframes rhotic-celebrate-fadein {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@media (max-width: 540px) {
  .rhotic-celebrate-text { left: 1.5rem; bottom: 13rem; }
  .rhotic-celebrate-title { font-size: 2.25rem; }
}

/* Confetti — many small rectangles falling, drawn in JS */
.rhotic-confetti {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}
.rhotic-confetti-piece {
  position: absolute;
  top: -24px;
  width: 10px;
  height: 16px;
  opacity: 0.95;
  border-radius: 1px;
  animation-name: rhotic-confetti-fall;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
  will-change: transform;
}
@keyframes rhotic-confetti-fall {
  0%   { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(110vh) rotate(900deg); }
}
@media (prefers-reduced-motion: reduce) {
  .rhotic-confetti-piece { animation: none; opacity: 0.5; }
}