/* ========= Design Tokens ========= */
:root {
  --bg: #0f1419;
  --bg-card: #1a2332;
  --bg-card-hover: #1f2b3d;
  --bg-input: #243044;
  --text: #e8edf4;
  --text-muted: #8899aa;
  --text-dim: #5a6b7d;
  --accent: #4ade80;
  --accent-soft: rgba(74, 222, 128, 0.15);
  --accent-glow: rgba(74, 222, 128, 0.3);
  --warm: #fbbf24;
  --warm-soft: rgba(251, 191, 36, 0.15);
  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.15);
  --calm: #60a5fa;
  --calm-soft: rgba(96, 165, 250, 0.15);
  --purple: #a78bfa;
  --purple-soft: rgba(167, 139, 250, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========= Reset & Base ========= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

#app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

/* ========= Screens ========= */
.screen {
  display: none;
  min-height: 100vh;
  animation: fadeIn 0.3s ease;
}
.screen.active { display: flex; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========= Buttons ========= */
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 16px 32px;
  border-radius: 50px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  max-width: 320px;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 20px var(--accent-glow); }

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  max-width: 320px;
}
.btn-secondary:hover { background: var(--bg-card-hover); }

.btn-text {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
}
.btn-text:hover { color: var(--text); }

.btn-back {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  cursor: pointer;
  padding: 8px 0;
  transition: var(--transition);
  align-self: flex-start;
}
.btn-back:hover { color: var(--text); }

.btn-small { padding: 10px 20px; font-size: 0.85rem; }

.btn-helper {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-muted);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition);
}
.btn-helper:hover { background: var(--bg-card-hover); color: var(--text); }

.btn-panic {
  background: var(--calm-soft);
  border: none;
  color: var(--calm);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}
.btn-panic:hover { background: rgba(96, 165, 250, 0.25); }

/* ========= Landing ========= */
.landing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 24px;
  text-align: center;
  gap: 32px;
}

.logo-mark { font-size: 4rem; margin-bottom: -12px; }

.landing-title {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -1px;
}
.landing-title .accent { color: var(--accent); }

.landing-subtitle {
  color: var(--text-muted);
  font-size: 1.15rem;
  line-height: 1.6;
  max-width: 300px;
}

.comfort-preview {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.zone-pill {
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}
.zone-1 { background: var(--accent-soft); color: var(--accent); }
.zone-2 { background: var(--calm-soft); color: var(--calm); }
.zone-3 { background: var(--warm-soft); color: var(--warm); }
.zone-4 { background: var(--purple-soft); color: var(--purple); }
.zone-5 { background: var(--danger-soft); color: var(--danger); }

.landing-note { color: var(--text-dim); font-size: 0.85rem; }

/* ========= Setup ========= */
.setup-container {
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 24px;
  min-height: 100vh;
}

.setup-container h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
}

.setup-section { display: flex; flex-direction: column; gap: 12px; }
.setup-section label { color: var(--text-muted); font-size: 0.95rem; }

.language-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.lang-btn {
  background: var(--bg-card);
  border: 2px solid transparent;
  color: var(--text);
  padding: 14px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}
.lang-btn:hover { background: var(--bg-card-hover); }
.lang-btn.selected { border-color: var(--accent); background: var(--accent-soft); }

.level-options { display: flex; flex-direction: column; gap: 10px; }

.level-btn {
  background: var(--bg-card);
  border: 2px solid transparent;
  color: var(--text);
  padding: 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 14px;
  text-align: left;
}
.level-btn:hover { background: var(--bg-card-hover); }
.level-btn.selected { border-color: var(--accent); background: var(--accent-soft); }
.level-icon { font-size: 1.5rem; }
.level-text { font-weight: 600; font-size: 1rem; }
.level-desc { color: var(--text-muted); font-size: 0.85rem; margin-left: auto; }

/* ========= Check-in ========= */
.checkin-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 24px;
  text-align: center;
  gap: 24px;
}

.checkin-emoji { font-size: 4rem; }
.checkin-container h2 { font-family: var(--font-display); font-size: 1.8rem; }
.checkin-prompt { color: var(--text-muted); font-size: 1.05rem; }

.anxiety-scale {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.anxiety-btn {
  background: var(--bg-card);
  border: 2px solid transparent;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.anxiety-btn:hover { background: var(--bg-card-hover); }
.anxiety-btn.selected { border-color: var(--accent); background: var(--accent-soft); }
.anxiety-face { font-size: 1.8rem; }
.anxiety-label { font-size: 0.7rem; color: var(--text-muted); }

.small-scale .anxiety-btn { padding: 10px 14px; }
.small-scale .anxiety-face { font-size: 1.5rem; }

.checkin-reassurance { color: var(--accent); font-size: 0.95rem; max-width: 280px; }

/* ========= Zones ========= */
.zones-container {
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 16px;
  min-height: 100vh;
}

.zones-container h2 { font-family: var(--font-display); font-size: 1.6rem; }
.zones-subtitle { color: var(--text-muted); font-size: 0.95rem; margin-top: -8px; }

.zone-cards { display: flex; flex-direction: column; gap: 12px; }

.zone-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: var(--transition);
}
.zone-card:hover:not(.locked) { transform: translateY(-2px); box-shadow: var(--shadow); }

.zone-card.locked { opacity: 0.5; cursor: not-allowed; }

.zone-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.zone-number { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.zone-badge { font-size: 0.7rem; padding: 4px 10px; border-radius: 12px; }
.zone-badge.unlocked { background: var(--accent-soft); color: var(--accent); }
.zone-badge.locked-badge { background: rgba(255,255,255,0.05); color: var(--text-dim); }

.zone-card h3 { font-size: 1.15rem; margin-bottom: 6px; }
.zone-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; }
.zone-detail { color: var(--text-dim); font-size: 0.8rem; margin-top: 10px; }

.zone-1-card { border-left: 3px solid var(--accent); }
.zone-2-card { border-left: 3px solid var(--calm); }
.zone-3-card { border-left: 3px solid var(--warm); }
.zone-4-card { border-left: 3px solid var(--purple); }
.zone-5-card { border-left: 3px solid var(--danger); }

/* ========= Scenarios ========= */
.scenarios-container {
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 16px;
  min-height: 100vh;
}
.scenarios-container h2 { font-family: var(--font-display); font-size: 1.5rem; }

.scenario-grid { display: flex; flex-direction: column; gap: 10px; }

.scenario-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 18px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 14px;
}
.scenario-card:hover { background: var(--bg-card-hover); transform: translateX(4px); }
.scenario-icon { font-size: 1.6rem; }
.scenario-info { flex: 1; }
.scenario-name { font-weight: 600; font-size: 0.95rem; }
.scenario-desc { color: var(--text-muted); font-size: 0.82rem; margin-top: 4px; }
.scenario-arrow { color: var(--text-dim); font-size: 1.2rem; }

/* ========= Conversation ========= */
.conversation-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.conv-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: var(--bg);
}
.conv-info { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.conv-zone { font-size: 0.8rem; color: var(--accent); font-weight: 500; }
.conv-timer { font-size: 0.75rem; color: var(--text-dim); font-variant-numeric: tabular-nums; }

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.message {
  max-width: 85%;
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  line-height: 1.5;
  animation: msgIn 0.3s ease;
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.message.ai {
  background: var(--bg-card);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
}

.message.user {
  background: var(--accent-soft);
  color: var(--accent);
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.message.system {
  background: none;
  color: var(--text-dim);
  font-size: 0.82rem;
  text-align: center;
  align-self: center;
  max-width: 100%;
  font-style: italic;
}

.message .gentle-correction {
  display: block;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.06);
  color: var(--calm);
  font-size: 0.85rem;
}

/* ========= Chat Input ========= */
.chat-input-area {
  padding: 16px 20px 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: var(--bg);
}

.voice-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.mic-button {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: var(--transition);
}
.mic-button:hover { transform: scale(1.05); box-shadow: 0 0 30px var(--accent-glow); }
.mic-button.recording {
  background: var(--danger);
  animation: pulse 1.5s infinite;
}
.mic-icon { font-size: 1.5rem; }
.mic-label { font-size: 0.65rem; color: var(--bg); font-weight: 600; }

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(248, 113, 113, 0.4); }
  50% { box-shadow: 0 0 0 16px rgba(248, 113, 113, 0); }
}

.take-your-time {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-top: 12px;
}

.typing-helper {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.helper-text { color: var(--text-muted); font-size: 0.82rem; }

.type-first {
  background: var(--bg-input);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
  padding: 12px 16px;
  border-radius: var(--radius-xs);
  font-size: 0.95rem;
  font-family: var(--font);
  outline: none;
}
.type-first:focus { border-color: var(--accent); }

/* ========= Breathing ========= */
.breathing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 24px;
  text-align: center;
  gap: 32px;
}

.breathing-container h2 { font-family: var(--font-display); font-size: 1.8rem; }
.breathing-container > p { color: var(--text-muted); font-size: 1rem; }

.breathing-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--calm-soft);
  border: 3px solid var(--calm);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: breathe 8s ease-in-out infinite;
}

.breathing-text { color: var(--calm); font-weight: 600; font-size: 1rem; }

@keyframes breathe {
  0%, 100% { transform: scale(1); }
  25% { transform: scale(1.2); }
  50% { transform: scale(1); }
  75% { transform: scale(1.2); }
}

.breathing-count { color: var(--text-dim); font-size: 0.9rem; }

/* ========= Summary ========= */
.summary-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 40px 24px;
  text-align: center;
  gap: 24px;
}

.summary-celebration { font-size: 4rem; }
.summary-container h2 { font-family: var(--font-display); font-size: 2rem; }
.summary-affirmation { color: var(--text-muted); font-size: 1rem; max-width: 300px; }

.summary-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  width: 100%;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-value { font-size: 1.6rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.72rem; color: var(--text-muted); }

.confidence-change {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  width: 100%;
}
.confidence-change p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 12px; }

/* ========= Dashboard ========= */
.dashboard-container {
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 20px;
  min-height: 100vh;
}

.dashboard-container h2 { font-family: var(--font-display); font-size: 1.6rem; }

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.dash-card {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.dash-icon { font-size: 1.4rem; }
.dash-value { font-size: 1.8rem; font-weight: 700; }
.dash-label { font-size: 0.78rem; color: var(--text-muted); }
.dash-note { font-size: 0.7rem; color: var(--text-dim); font-style: italic; margin-top: 4px; }

.streak-card .dash-value { color: var(--warm); }
.time-card .dash-value { color: var(--accent); }
.zone-progress-card .dash-value { color: var(--calm); }
.anxiety-card .dash-value { color: var(--accent); }

.anxiety-chart {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
}
.anxiety-chart h3 { font-size: 1rem; margin-bottom: 16px; }

.chart-visual {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 120px;
}

.chart-bar {
  flex: 1;
  background: var(--bg-input);
  border-radius: 6px 6px 0 0;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 8px;
  transition: var(--transition);
}
.chart-bar span { font-size: 0.7rem; color: var(--text-muted); font-weight: 600; }
.chart-bar.highlight { background: var(--accent-soft); }
.chart-bar.highlight span { color: var(--accent); }

.chart-labels {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.chart-labels span { flex: 1; text-align: center; font-size: 0.72rem; color: var(--text-dim); }

.weekly-summary {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
}
.weekly-summary h3 { font-size: 1rem; margin-bottom: 14px; }

.week-days {
  display: flex;
  gap: 8px;
}

.day {
  flex: 1;
  text-align: center;
  padding: 12px 4px;
  border-radius: var(--radius-xs);
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--text-muted);
  background: var(--bg-input);
}
.day.done { background: var(--accent-soft); color: var(--accent); }
.day.current { background: var(--warm-soft); color: var(--warm); }
.day.skipped { background: rgba(255,255,255,0.03); color: var(--text-dim); }
.day.future { background: rgba(255,255,255,0.02); color: var(--text-dim); }

/* ========= Toast ========= */
.toast {
  position: fixed;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  color: var(--text);
  padding: 14px 24px;
  border-radius: 30px;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  transition: bottom 0.3s ease;
  z-index: 100;
  white-space: nowrap;
}
.toast.show { bottom: 32px; }

/* ========= Scrollbar ========= */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

/* ========= Mobile ========= */
@media (max-width: 480px) {
  .landing-title { font-size: 2.5rem; }
  .language-grid { grid-template-columns: repeat(2, 1fr); }
  .summary-stats { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .stat-card { padding: 14px 8px; }
  .stat-value { font-size: 1.3rem; }
}