/* ═══════════════════════════════════════════════════════
   Almitu Pro — Core Styles (Light Theme)
   Matches almitu.com design system
   ═══════════════════════════════════════════════════════ */

:root {
  --primary: #FF6B35;
  --primary-dark: #E85A2A;
  --primary-light: #FF8C66;
  --secondary: #004E89;
  --secondary-dark: #003D6B;
  --accent: #FFD23F;
  --success: #06D6A0;
  --navy: #1A1D29;
  --ink: #2D3142;
  --muted: #6C7489;
  --bg: #F8F9FD;
  --card: #FFFFFF;
  --line: rgba(29, 33, 41, .08);
  --shadow: 0 8px 32px rgba(29, 33, 41, .06);
  --shadow-lg: 0 20px 60px rgba(29, 33, 41, .10);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-pill: 999px;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #F1F2F6; }
::-webkit-scrollbar-thumb { background: #C8CBD4; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9BA0AE; }

/* ── Glass / Card Surfaces ── */
.card-surface {
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.header-glass {
  background: rgba(248, 249, 253, .92);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 16px rgba(29, 33, 41, .03);
}

/* ── Button Glows ── */
.glow-primary {
  box-shadow: 0 12px 32px rgba(255, 107, 53, .30), 0 4px 12px rgba(255, 107, 53, .20);
}
.glow-primary:hover {
  box-shadow: 0 16px 40px rgba(255, 107, 53, .35), 0 6px 16px rgba(255, 107, 53, .25);
}
.glow-success {
  box-shadow: 0 8px 24px rgba(6, 214, 160, .25);
}
.glow-danger {
  box-shadow: 0 8px 24px rgba(239, 68, 68, .25);
}

/* ── Executive Tags ── */
.exec-tag {
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 6px;
  font-weight: 600;
  text-transform: uppercase;
}
.tag-cto { background: rgba(0, 78, 137, .08); color: var(--secondary); border: 1px solid rgba(0, 78, 137, .15); }
.tag-cpo { background: rgba(6, 214, 160, .08); color: #059669; border: 1px solid rgba(6, 214, 160, .20); }
.tag-cxo { background: rgba(255, 210, 63, .12); color: #B45309; border: 1px solid rgba(255, 210, 63, .25); }

/* ── Cards ── */
.card-hover { transition: all .3s cubic-bezier(0.4, 0, 0.2, 1); }
.card-hover:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* ── Chat Messages ── */
.chat-msg { animation: slideUp .3s ease-out; }

/* ── Quiz Options ── */
.quiz-option { transition: all .2s ease; }
.quiz-option:hover { background: rgba(255, 107, 53, .06); border-color: rgba(255, 107, 53, .3); }
.quiz-option.correct { background: rgba(6, 214, 160, .1); border-color: var(--success); }
.quiz-option.incorrect { background: rgba(239, 68, 68, .08); border-color: #ef4444; }

/* ── Flashcards ── */
.flashcard { perspective: 800px; }
.flashcard-inner { transition: transform 0.6s; transform-style: preserve-3d; position: relative; }
.flashcard.flipped .flashcard-inner { transform: rotateY(180deg); }
.flashcard-front, .flashcard-back { backface-visibility: hidden; position: absolute; inset: 0; }
.flashcard-back { transform: rotateY(180deg); }

/* ── Typing Indicator ── */
.typing-dot { animation: typingBounce 1.4s ease-in-out infinite; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-4px); }
}

/* ── Keyframes ── */
@keyframes fadeIn { 0% { opacity: 0; } 100% { opacity: 1; } }
@keyframes slideUp { 0% { opacity: 0; transform: translateY(16px); } 100% { opacity: 1; transform: translateY(0); } }

/* ── Session Type Selector ── */
.session-type-btn {
  transition: all .2s ease;
  cursor: pointer;
}
.session-type-btn:hover {
  border-color: rgba(255, 107, 53, .3);
  background: rgba(255, 107, 53, .04);
}
.session-type-btn.active {
  background: rgba(255, 107, 53, .08);
  border-color: rgba(255, 107, 53, .4);
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(255, 107, 53, .12);
}
.session-type-btn .st-icon { transition: transform .2s ease; }
.session-type-btn.active .st-icon { transform: scale(1.15); }

/* ── Topic field transition ── */
#topicFieldWrapper { transition: opacity .25s ease, transform .25s ease; }
#topicFieldWrapper.swapping { opacity: 0; transform: translateY(4px); }

/* ── Slide Viewer ── */
.slide-viewer {
  background: #F1F2F6;
  border-radius: var(--radius-lg);
  position: relative;
}

.slide-card {
  background: var(--card);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 20px rgba(29, 33, 41, .08);
  min-height: 380px;
}

.slide-nav-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: 0 2px 8px rgba(0,0,0,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .2s ease;
  color: var(--ink);
}
.slide-nav-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }
.slide-nav-btn:disabled { opacity: .3; cursor: default; pointer-events: none; }

.slide-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #D1D5DB;
  transition: all .2s ease;
  cursor: pointer;
}
.slide-dot.active {
  background: var(--primary);
  width: 24px;
  border-radius: 4px;
}

/* ── Slide Content Blocks ── */
.slide-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  color: var(--navy);
  font-weight: 700;
}

.vocab-card {
  background: #F8F9FD;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  text-align: center;
  transition: all .2s ease;
}
.vocab-card:hover { border-color: rgba(255, 107, 53, .3); transform: translateY(-2px); }

.phrase-row {
  padding: 14px 16px;
  border-radius: 12px;
  background: #F8F9FD;
  border-left: 3px solid var(--primary);
}

.dialogue-bubble {
  padding: 10px 16px;
  border-radius: 16px;
  max-width: 85%;
  font-size: 14px;
  line-height: 1.5;
}
.dialogue-bubble.left {
  background: #F1F2F6;
  border-bottom-left-radius: 4px;
  color: var(--ink);
}
.dialogue-bubble.right {
  background: rgba(255, 107, 53, .1);
  border-bottom-right-radius: 4px;
  color: var(--primary-dark);
  margin-left: auto;
}

/* ── Slide Thumbnails (Step 1 preview) ── */
.slide-thumb {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  cursor: default;
  transition: all .2s ease;
  position: relative;
  overflow: hidden;
}
.slide-thumb::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

/* ── Live Call Compact Video ── */
.video-feed {
  background: var(--navy);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}
.video-feed .avatar-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: white;
}

/* ── Compact Chat ── */
.chat-compact {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ── Form field inputs (dynamic) ── */
.field-input {
  background: #F8F9FD;
  border: 1px solid var(--line);
  color: var(--ink);
}
.field-input:focus { border-color: var(--primary); }

/* ── Tier badge panel ── */
.tier-badge {
  border-radius: 14px;
  border: 1px solid var(--line);
  padding: 12px 16px;
  transition: all .25s ease;
}

/* ── Slide editing mode ── */
#pvContent.editing {
  outline: 2px dashed var(--primary);
  outline-offset: 4px;
  border-radius: 8px;
  cursor: text;
  background: rgba(255, 107, 53, .015);
}

/* ── Toast notifications ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  max-width: 380px;
  background: white;
  border: 1px solid var(--line);
  border-left: 4px solid var(--secondary);
  border-radius: 14px;
  padding: 14px 18px;
  font-size: 13px;
  color: var(--ink);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(12px);
  transition: all .3s cubic-bezier(0.4, 0, 0.2, 1);
}
.toast.show { opacity: 1; transform: translateY(0); }

/* ── Settings Modal ── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(26, 29, 41, .4);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}
.engine-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: all .2s ease;
}
.engine-option:hover { border-color: rgba(255, 107, 53, .35); }
.engine-option:has(input:checked) {
  border-color: var(--primary);
  background: rgba(255, 107, 53, .04);
}

/* ── Reorder activity ── */
.reorder-zone {
  min-height: 56px;
  border-radius: 14px;
  border: 2px dashed var(--line);
  background: #F8F9FD;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px;
}
.reorder-token {
  padding: 8px 14px;
  border-radius: 10px;
  background: white;
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  transition: all .15s ease;
  box-shadow: 0 2px 6px rgba(29, 33, 41, .05);
}
.reorder-token:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.reorder-token.placed { background: rgba(255, 107, 53, .07); border-color: rgba(255, 107, 53, .3); }

/* ── Answer explanations (L1 / English) ── */
.expl {
  margin-top: 6px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(0, 78, 137, .05);
  border: 1px solid rgba(0, 78, 137, .12);
  color: var(--ink);
  font-size: 11.5px;
  line-height: 1.55;
}

/* ── Matching activity ── */
.match-token {
  padding: 10px 14px;
  border-radius: 12px;
  background: white;
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: all .15s ease;
}
.match-token:hover:not(:disabled) { border-color: var(--primary); }
.match-token.selected { border-color: var(--primary); background: rgba(255, 107, 53, .08); color: var(--primary); font-weight: 600; }
.match-token.done { background: rgba(6, 214, 160, .08); border-color: rgba(6, 214, 160, .3); color: #059669; cursor: default; }

/* ── Simulation bar ── */
.sim-bar {
  display: flex;
  gap: 6px;
  padding: 8px;
  background: #F8F9FD;
  border-radius: 12px;
}
.sim-btn {
  flex: 1;
  padding: 8px 4px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--card);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: all .15s ease;
  text-align: center;
}
.sim-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(255,107,53,.04); }