/* ============================================
   Jiaobei — Minimal White Theme
   (Consistent with Tarot app design language)
   ============================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #fafafa;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --border: #e0e0e0;
  --border-light: #eeeeee;
  --text: #1a1a1a;
  --text-secondary: #888888;
  --text-muted: #b0b0b0;
  --accent: #1a1a1a;
  --accent-light: #555555;
  --highlight: #000000;
  --red: #c0392b;
  --gold: #b8860b;
  --green: #2d8a4e;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: 'Georgia', 'Times New Roman', serif;
  background: var(--bg);
  color: var(--text);
}

body {
  display: flex;
  flex-direction: column;
}

#app {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

/* --- Screen --- */
.screen {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 0;
  left: 0;
  transition: opacity 0.4s ease;
}

.screen.hidden {
  opacity: 0;
  pointer-events: none;
}

/* --- Menu --- */
.menu-title {
  font-size: 2.8rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.2em;
  letter-spacing: 0.15em;
}

.menu-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 3em;
  font-weight: 300;
  letter-spacing: 0.06em;
}

.mode-options {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.mode-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 22px;
  width: 190px;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
}

.mode-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 6px 24px rgba(0,0,0,0.06);
}

.mode-card-icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
  opacity: 0.7;
  letter-spacing: -0.15em;
}

.mode-card-name {
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 6px;
}

.mode-card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.mode-card-count {
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* --- Prayer Screen --- */
.prayer-container {
  text-align: center;
  max-width: 420px;
  padding: 0 24px;
}

.prayer-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  opacity: 0.8;
}

.prayer-title {
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.prayer-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.6;
}

.btn-throw {
  background: var(--text);
  color: var(--bg);
  border: none;
  padding: 12px 48px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.1em;
}

.btn-throw:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

/* --- Loading --- */
.loading-container {
  text-align: center;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin: 0 auto 18px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* --- Throw Screen --- */
.throw-container {
  text-align: center;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 40px;
  user-select: none;
  -webkit-user-select: none;
}

.throw-container.fallback {
  cursor: pointer;
}

.throw-round-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
  min-height: 1.2em;
  z-index: 60;
}

/* --- Gesture Status --- */
.gesture-status {
  margin-bottom: 16px;
  transition: opacity 0.3s;
}

.gesture-status.hidden {
  opacity: 0;
  pointer-events: none;
}

.gesture-hands {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 8px;
}

.gesture-hand {
  font-size: 2.2rem;
  transition: transform 0.3s, opacity 0.3s;
  opacity: 0.3;
}

.gesture-hand.detected {
  opacity: 0.7;
}

.gesture-hand.grab {
  opacity: 1;
  transform: scale(1.15);
}

.gesture-hand.grab::after {
  content: '';
}

.gesture-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  min-height: 1.2em;
}

/* --- Fallback Notice --- */
.fallback-notice {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  z-index: 90;
  display: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.fallback-notice.visible { display: block; }

/* --- Jiaobei Stage --- */
.jiaobei-stage {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
}

.jiaobei-block {
  width: 60px;
  height: 120px;
  perspective: 600px;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-top: -60px;
  margin-left: -30px;
  opacity: 0;
}

/* Left block ◖, right block ◗ */
#block-left  { transform: scaleX(-1); }
#block-right { transform: scaleX(1); }

/* Visible after throw */
.jiaobei-block.visible {
  opacity: 1;
}

.block-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Half-circle crescent shape */
.block-face {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 0 120px 120px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Flat side (陰面 - flat surface, darker red) */
.block-flat {
  background: linear-gradient(160deg, #c0392b, #a93226);
  border: 1.5px solid rgba(120, 20, 15, 0.3);
  border-left: none;
  box-shadow:
    inset 0 2px 6px rgba(0,0,0,0.12),
    0 2px 8px rgba(0,0,0,0.1);
}

.block-flat-surface {}

/* Round side (陽面 - convex dome, brighter red) */
.block-round {
  background: linear-gradient(160deg, #e74c3c, #c0392b);
  border: 1.5px solid rgba(120, 20, 15, 0.25);
  border-left: none;
  transform: rotateX(180deg);
  box-shadow:
    inset 0 -6px 16px rgba(0,0,0,0.1),
    inset 0 4px 8px rgba(255,255,255,0.08),
    0 2px 8px rgba(0,0,0,0.1);
}

.block-round-surface {
  width: 70%;
  height: 55%;
  border-radius: 0 50% 50% 0;
  background: radial-gradient(
    ellipse at 50% 40%,
    rgba(255,255,255,0.22) 0%,
    rgba(255,255,255,0.06) 50%,
    transparent 75%
  );
}

/* Throw animation is driven by JS with Web Animations API */

/* Landing — final transform set by JS inline style */

/* Stage shake on land */
.jiaobei-stage.landing {
  animation: stageLand 0.4s ease-out;
}

@keyframes stageLand {
  0% { transform: translateY(0); }
  25% { transform: translateY(4px); }
  50% { transform: translateY(-2px); }
  75% { transform: translateY(1px); }
  100% { transform: translateY(0); }
}

/* Throw prompt */
.throw-prompt {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  transition: opacity 0.3s;
  z-index: 60;
}

.throw-prompt.hidden {
  opacity: 0;
}

.throw-prompt.pulse {
  animation: promptPulse 2s ease-in-out infinite;
}

@keyframes promptPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* --- Result Screen --- */
#result-screen {
  justify-content: flex-start;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

#result-screen::-webkit-scrollbar {
  display: none;
}

.result-container {
  text-align: center;
  max-width: 420px;
  padding: 40px 28px 120px;
}

.result-icon {
  font-size: 3.5rem;
  margin-bottom: 12px;
  animation: resultFadeUp 0.5s ease both;
}

@keyframes resultFadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-title {
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: 0.12em;
  animation: resultFadeUp 0.5s ease 0.08s both;
}

.result-title.holy { color: var(--red); }
.result-title.laugh { color: var(--text-muted); }
.result-title.negative { color: var(--accent-light); }

.result-meaning {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
  animation: resultFadeUp 0.5s ease 0.16s both;
}

.result-history {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 24px;
  min-height: 0;
}

.result-history:empty {
  display: none;
}

.history-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 14px;
  border-radius: 6px;
  background: var(--bg);
  animation: resultFadeUp 0.4s ease both;
}

.history-round {
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.history-icon {
  font-size: 1.1rem;
}

.history-label {
  font-size: 0.65rem;
  color: var(--text-secondary);
}

.result-detail {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  text-align: left;
  animation: resultFadeUp 0.5s ease 0.24s both;
}

.result-detail:empty {
  display: none;
  margin-bottom: 0;
}

/* --- App Promo Slot --- */
.result-ad-slot {
  margin-bottom: 24px;
  border: 2px dashed var(--border);
  border-radius: 10px;
  background: var(--bg);
  overflow: hidden;
  animation: resultFadeUp 0.5s ease 0.28s both;
}

.app-promo {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  text-decoration: none;
  color: inherit;
  transition: background 0.2s;
}

.app-promo:hover {
  background: rgba(0,0,0,0.02);
}

.app-promo-body {
  flex: 1;
  min-width: 0;
  text-align: left;
}

.app-promo-hook {
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 4px;
}

.app-promo-desc {
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.app-promo-badge {
  flex-shrink: 0;
  height: 40px;
  width: auto;
}

.result-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  animation: resultFadeUp 0.5s ease 0.36s both;
}

.btn-again,
.btn-home {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 28px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.btn-again:hover {
  background: var(--text);
  color: var(--bg);
}

.btn-home:hover {
  border-color: var(--accent);
}

/* --- Meditation Overlay --- */
.meditation-overlay {
  position: fixed;
  inset: 0;
  z-index: 55;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.meditation-overlay.hidden {
  opacity: 0;
}

.meditation-text {
  font-size: 1.4rem;
  color: var(--text);
  letter-spacing: 0.1em;
  text-align: center;
  padding: 0 24px;
  transition: opacity 0.5s ease;
}

.meditation-text.fading {
  opacity: 0;
}

/* --- Incense smoke effect --- */
.smoke-container {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.15;
}

/* --- Utility --- */
.hidden:not(.screen) { display: none !important; }

/* --- Site Footer --- */
.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  text-align: center;
  padding: 10px 16px 14px;
  background: linear-gradient(to top, var(--bg) 60%, transparent);
  pointer-events: none;
}

.site-footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 4px;
  pointer-events: auto;
}

.site-footer-link {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

a.site-footer-link:hover {
  color: var(--text);
}

.site-footer-link.active {
  color: var(--text);
  font-weight: 600;
}

.site-footer-sep {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.site-footer-copy {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .menu-title { font-size: 2rem; }
  .mode-options { gap: 12px; }
  .mode-card { width: 155px; padding: 20px 16px; }
  .jiaobei-stage { width: 220px; height: 170px; gap: 30px; }
  .jiaobei-block { width: 50px; height: 100px; }
  .result-container { padding: 0 20px; }
}

@media (max-width: 480px) {
  .menu-title { font-size: 1.6rem; }
  .mode-card { width: 135px; }
  .jiaobei-stage { width: 180px; height: 140px; gap: 20px; }
  .jiaobei-block { width: 42px; height: 84px; }
  .prayer-container { padding: 0 16px; }
  .result-title { font-size: 1.6rem; }
  .result-actions { flex-direction: column; }
}