/* ============================================
   Global Styles — 逆转亲戚 MVP
   ============================================ */

:root {
  /* Colors */
  --color-bg: #1a0a2e;
  --color-bg-warm: #2d1810;
  --color-bg-cool: #0f1a2e;
  --color-surface: #231545;
  --color-surface-light: #2e1f5e;
  --color-primary: #ff6b35;
  --color-primary-light: #ff8c5a;
  --color-accent: #ffd700;
  --color-accent-dim: #b8960f;
  --color-danger: #e74c3c;
  --color-success: #2ecc71;
  --color-text: #f0e6d3;
  --color-text-dim: #a89b8c;
  --color-text-muted: #6b5e50;
  --color-heart: #e74c3c;
  --color-heart-empty: #4a3a2a;
  --color-card-bg: #2a1a4a;
  --color-card-border: #3d2a6e;
  --color-overlay: rgba(0, 0, 0, 0.85);

  /* Spring Festival accent colors */
  --color-spring-red: #d4380d;
  --color-spring-gold: #faad14;
  --color-spring-crimson: #cf1322;

  /* Typography */
  --font-main: -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-testimony: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Layout */
  --max-width: 430px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;

  /* Animation */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

  /* Safe area */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow: hidden;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  min-height: 100dvh;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  font-size: inherit;
  touch-action: manipulation;
}

/* Game Root */
#game-root {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100dvh;
  position: relative;
  overflow: hidden;
}

/* Game Screens */
.game-screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  padding-top: calc(var(--safe-top) + var(--space-md));
  padding-bottom: calc(var(--safe-bottom) + var(--space-md));
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.game-screen[hidden] {
  display: none !important;
}

/* Screen transitions */
.game-screen.fade-in {
  animation: fadeIn var(--transition-normal) ease forwards;
}

.game-screen.fade-out {
  animation: fadeOut var(--transition-normal) ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ============================================
   Title Screen
   ============================================ */

#screen-title {
  background: linear-gradient(180deg, var(--color-bg) 0%, #2d0a1e 50%, var(--color-bg) 100%);
  justify-content: center;
  align-items: center;
  text-align: center;
}

.title-content {
  animation: fadeIn 1s ease;
}

.title-characters {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  position: relative;
}

.title-aunt {
  width: 120px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(255, 215, 0, 0.2));
  animation: titleFloat 3s ease-in-out infinite;
}

.title-player {
  width: 160px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(255, 107, 53, 0.3));
  animation: titleFloat 3s ease-in-out infinite;
  animation-delay: -1.5s;
}

@keyframes titleFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.game-title {
  font-size: var(--font-size-3xl);
  font-weight: 900;
  color: var(--color-accent);
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.3), 0 2px 4px rgba(0,0,0,0.5);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.game-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-dim);
  margin-bottom: var(--space-2xl);
  font-style: italic;
}

.title-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-weight: 600;
  transition: all var(--transition-fast);
  min-height: 44px;
  min-width: 44px;
}

.btn:active {
  transform: scale(0.95);
}

.btn:disabled {
  opacity: 0.4;
  pointer-events: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn-primary:active {
  box-shadow: 0 2px 6px rgba(255, 107, 53, 0.2);
}

.btn-secondary {
  background: var(--color-surface-light);
  color: var(--color-text);
  border: 1px solid var(--color-card-border);
}

.btn-small {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
  min-height: 32px;
}

.btn-nav {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-surface-light);
  font-size: var(--font-size-lg);
}

.btn-action {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
}

.btn-press {
  background: var(--color-surface-light);
  border: 1px solid var(--color-card-border);
}

.btn-present {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: #fff;
}

.btn-hint {
  background: var(--color-surface);
  color: var(--color-text-dim);
  border: 1px solid var(--color-card-border);
}

.btn-proceed {
  position: sticky;
  bottom: var(--space-md);
  width: 100%;
  margin-top: auto;
  z-index: 10;
}

/* ============================================
   Credibility Hearts
   ============================================ */

.credibility-bar {
  display: flex;
  gap: var(--space-xs);
  justify-content: center;
  padding: var(--space-sm);
}

.heart {
  font-size: 1.5rem;
  transition: all var(--transition-normal);
}

.heart.full {
  color: var(--color-heart);
}

.heart.empty {
  color: var(--color-heart-empty);
}

.heart.breaking {
  animation: heartBreak 0.4s ease forwards;
}

@keyframes heartBreak {
  0% { transform: scale(1); }
  30% { transform: scale(1.3); color: var(--color-heart); }
  100% { transform: scale(0.8); color: var(--color-heart-empty); }
}

/* ============================================
   Evidence Bar (shared)
   ============================================ */

.evidence-bar {
  position: sticky;
  bottom: 60px;
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--border-radius-sm);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 5;
}

.evidence-bar-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
}

/* Evidence detail overlay (used by both investigation + testimony) */
.evidence-detail-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  padding-top: calc(var(--safe-top) + var(--space-lg));
  overflow-y: auto;
}

.evidence-detail-overlay[hidden] {
  display: none !important;
}

.evidence-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
}

.evidence-card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-xs);
}

.evidence-card-name {
  font-weight: 700;
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xs);
}

.evidence-card-summary {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
}

.evidence-card-detail {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
  border-top: 1px solid var(--color-card-border);
  padding-top: var(--space-sm);
}

/* ============================================
   Dialogue (shared: opening + investigation)
   ============================================ */

.dialogue-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: var(--space-xl);
}

.character-portrait {
  text-align: center;
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: center;
}

.portrait-img {
  width: 160px;
  height: auto;
  object-fit: contain;
  image-rendering: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
  transition: transform var(--transition-normal), filter var(--transition-normal);
}

.portrait-img.shake {
  animation: portraitShake 0.5s ease;
}

@keyframes portraitShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.dialogue-box {
  background: var(--color-surface);
  border: 1px solid var(--color-card-border);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  min-height: 120px;
}

.tap-hint {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--space-md);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* Chat bubbles */
.chat-bubble {
  max-width: 85%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  line-height: 1.5;
  animation: bubbleIn var(--transition-normal) ease;
}

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

.chat-bubble.npc {
  background: var(--color-surface-light);
  border-bottom-left-radius: 4px;
  align-self: flex-start;
}

.chat-bubble.player {
  background: #1a4a2e;
  border-bottom-right-radius: 4px;
  align-self: flex-end;
}

.chat-bubble.thought {
  background: transparent;
  border: 1px dashed var(--color-card-border);
  color: var(--color-text-dim);
  font-style: italic;
  align-self: flex-end;
}

.chat-bubble.narration {
  background: transparent;
  color: var(--color-text-muted);
  text-align: center;
  align-self: center;
  font-style: italic;
}

.chat-bubble .speaker-name {
  font-weight: 700;
  font-size: var(--font-size-xs);
  color: var(--color-accent-dim);
  display: block;
  margin-bottom: 2px;
}

/* WeChat-style UI card */
.ui-card-wechat {
  background: #2b2b2b;
  border-radius: var(--border-radius-sm);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-sm);
  max-width: 85%;
  align-self: flex-start;
  font-size: var(--font-size-sm);
}

.ui-card-wechat .wechat-group {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  margin-bottom: 4px;
}

.ui-card-wechat .wechat-sender {
  color: var(--color-success);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.ui-card-wechat .wechat-text {
  color: var(--color-text);
  margin-top: 4px;
}

.ui-card-wechat .wechat-time {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  margin-top: 4px;
  text-align: right;
}

/* Choice buttons in dialogue */
.dialogue-choice-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.dialogue-choice-btn {
  background: var(--color-surface-light);
  border: 1px solid var(--color-card-border);
  color: var(--color-text);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  text-align: left;
  transition: all var(--transition-fast);
}

.dialogue-choice-btn:active {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* Evidence obtained banner */
.evidence-obtained-banner {
  background: linear-gradient(135deg, var(--color-spring-gold), var(--color-accent));
  color: #1a0a2e;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius-sm);
  text-align: center;
  font-weight: 700;
  margin: var(--space-md) 0;
  animation: evidenceBannerIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes evidenceBannerIn {
  from { transform: scale(0.5); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* ============================================
   Finale
   ============================================ */

#screen-finale {
  background: linear-gradient(180deg, var(--color-bg) 0%, #1a0a0a 100%);
  justify-content: center;
}

.finale-container {
  text-align: center;
}

.finale-text {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.finale-revelation {
  font-size: var(--font-size-xl);
  color: var(--color-accent);
  font-weight: 700;
  padding: var(--space-lg);
  border: 2px solid var(--color-accent-dim);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--space-xl);
  animation: revealIn 1s ease;
}

@keyframes revealIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.finale-choices {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.finale-choice-btn {
  background: var(--color-surface);
  border: 2px solid var(--color-card-border);
  color: var(--color-text);
  padding: var(--space-md);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  text-align: center;
  transition: all var(--transition-fast);
}

.finale-choice-btn:active {
  border-color: var(--color-primary);
  background: var(--color-surface-light);
}

/* ============================================
   Ending Card
   ============================================ */

#screen-ending {
  justify-content: center;
  align-items: center;
  background: linear-gradient(180deg, var(--color-bg) 0%, #0a1a0a 100%);
}

.ending-card {
  background: var(--color-surface);
  border: 2px solid var(--color-accent-dim);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  text-align: center;
  width: 100%;
  max-width: 360px;
}

.ending-card .ending-name {
  font-size: var(--font-size-2xl);
  font-weight: 900;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.ending-card .ending-rarity {
  font-size: var(--font-size-xs);
  padding: 2px 8px;
  border-radius: 99px;
  display: inline-block;
  margin-bottom: var(--space-md);
}

.ending-rarity.common { background: #4a4a4a; color: #ccc; }
.ending-rarity.uncommon { background: #1a4a1a; color: #2ecc71; }
.ending-rarity.rare { background: #1a1a4a; color: #5b9bff; }
.ending-rarity.hidden { background: #4a1a4a; color: #e879f9; }

.ending-card .ending-rating {
  font-size: var(--font-size-3xl);
  font-weight: 900;
  margin: var(--space-md) 0;
}

.ending-rating.S { color: #ffd700; text-shadow: 0 0 20px rgba(255,215,0,0.5); }
.ending-rating.A { color: #c0c0c0; }
.ending-rating.B { color: #cd7f32; }
.ending-rating.C { color: #888; }

.ending-card .ending-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
  line-height: 1.6;
  margin: var(--space-md) 0;
}

.ending-card .ending-stats {
  display: flex;
  justify-content: space-around;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-card-border);
}

.ending-stat {
  text-align: center;
}

.ending-stat-value {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
}

.ending-stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.ending-actions {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  width: 100%;
  max-width: 360px;
}

.ending-actions .btn {
  flex: 1;
}

/* ============================================
   Game Over
   ============================================ */

#screen-gameover {
  justify-content: center;
  align-items: center;
  text-align: center;
  background: linear-gradient(180deg, #1a0a0a, var(--color-bg));
}

.gameover-title {
  font-size: var(--font-size-2xl);
  color: var(--color-danger);
  margin-bottom: var(--space-md);
}

.gameover-text {
  color: var(--color-text-dim);
  margin-bottom: var(--space-xl);
  font-size: var(--font-size-lg);
}

/* ============================================
   Share Overlay
   ============================================ */

.share-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.share-overlay[hidden] {
  display: none;
}

.share-content {
  text-align: center;
}

.share-content img {
  max-width: 100%;
  max-height: 70vh;
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
}

.share-hint {
  color: var(--color-text-dim);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
}

/* ============================================
   Phase Header
   ============================================ */

.phase-header {
  text-align: center;
  margin-bottom: var(--space-md);
}

.phase-header h2 {
  font-size: var(--font-size-xl);
  color: var(--color-accent);
}

.phase-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-dim);
}