/* ===== CSS Variables ===== */
:root {
  --bg-void: #07070e;
  --bg-card: #0f0f1a;
  --border-dim: #1e1e30;
  --neon-cyan: #00f5d4;
  --neon-pink: #f72585;
  --neon-amber: #ffd60a;
  --neon-violet: #7b2ff7;
  --text-primary: #e8e8f0;
  --text-muted: #6b6b80;
  --current-color: var(--neon-cyan);
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: 'Noto Sans SC', system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
body { display: flex; flex-direction: column; }

/* ===== Canvas 粒子背景 ===== */
#bg-canvas {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  width: 100%; height: 100%;
}

/* ===== 辉光呼吸层 ===== */
.ambient-glow {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse 80% 60% at 50% 50%,
    color-mix(in srgb, var(--current-color) 8%, transparent) 0%,
    transparent 70%);
  animation: glowPulse 3s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}

/* ===== 页面加载动画 ===== */
#loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-void);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 24px;
}
.loader-logo {
  font-family: 'Orbitron', monospace;
  font-size: clamp(32px, 8vw, 56px);
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--current-color);
  text-shadow: 0 0 20px var(--current-color);
}
.logo-char {
  display: inline-block;
  opacity: 0;
  animation: charDraw 200ms ease-out forwards;
}
.logo-char:nth-child(1) { animation-delay: 0ms; }
.logo-char:nth-child(2) { animation-delay: 200ms; }
.logo-char:nth-child(3) { animation-delay: 400ms; }
.logo-char:nth-child(4) { animation-delay: 600ms; }
.logo-char:nth-child(5) { animation-delay: 800ms; }
@keyframes charDraw {
  0% { opacity: 0; transform: translateY(10px) skewY(5deg); }
  100% { opacity: 1; transform: translateY(0) skewY(0); }
}
.loader-bar {
  width: 120px; height: 2px;
  background: var(--border-dim);
  border-radius: 2px;
  overflow: hidden;
}
.loader-bar::after {
  content: '';
  display: block;
  width: 100%; height: 100%;
  background: var(--current-color);
  animation: loadBar 1s ease-in-out forwards;
  transform-origin: left;
}
@keyframes loadBar {
  0% { transform: scaleX(0); }
  100% { transform: scaleX(1); }
}

/* ===== 主站内容 ===== */
#app { display: flex; flex-direction: column; height: 100vh; height: 100dvh; }
#app.hidden { display: none; }

/* ===== Tab 栏 ===== */
.tab-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  height: 56px;
  padding-bottom: env(safe-area-inset-bottom, 0);
  background: color-mix(in srgb, var(--bg-card) 90%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-dim);
  display: flex; justify-content: space-around; align-items: center;
  z-index: 100;
}
.tab-btn {
  display: flex; flex-direction: column;
  align-items: center; gap: 2px;
  background: none; border: none;
  color: var(--text-muted);
  font-size: 10px;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
  transition: color 0.2s, transform 0.15s;
  position: relative;
}
.tab-btn::after {
  content: '';
  position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px;
  background: var(--current-color);
  border-radius: 1px;
  transition: width 0.25s ease;
}
.tab-btn.active { color: var(--current-color); }
.tab-btn.active::after { width: 20px; }
.tab-btn:active { transform: scale(0.9); }
.tab-icon { font-size: 18px; line-height: 1; }
.tab-label { font-family: 'Noto Sans SC', sans-serif; font-size: 10px; }

/* ===== 内容区 ===== */
.content-area {
  flex: 1;
  position: relative;
  overflow: hidden;
  padding-bottom: 60px;
  padding-bottom: calc(60px + env(safe-area-inset-bottom, 0));
}

/* ===== 模块容器 ===== */
.module {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 20px;
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0));
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.module.active {
  opacity: 1; transform: translateY(0);
  pointer-events: auto;
}

/* ===== 按钮基础样式 ===== */
.btn-primary {
  position: relative; overflow: hidden;
  padding: 14px 32px;
  font-family: 'Orbitron', monospace;
  font-size: 14px; font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--bg-void);
  background: var(--current-color);
  border: none; border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 0 20px color-mix(in srgb, var(--current-color) 50%, transparent);
  transition: transform 0.12s, box-shadow 0.2s;
  margin-top: 20px;
}
.btn-primary:active {
  transform: scale(0.95);
  box-shadow: 0 0 10px color-mix(in srgb, var(--current-color) 30%, transparent);
}
.btn-ripple {
  position: absolute; border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transform: scale(0);
  animation: ripple 0.5s ease-out;
  pointer-events: none;
}
@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}

/* ===== 转盘 ===== */
.wheel-container {
  position: relative;
  width: min(80vw, 340px);
  height: min(80vw, 340px);
}
#wheel-canvas {
  width: 100%; height: 100%;
  filter: drop-shadow(0 0 12px var(--current-color));
}
.wheel-pointer {
  position: absolute;
  top: -12px; left: 50%; transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 20px solid var(--current-color);
  filter: drop-shadow(0 0 8px var(--current-color));
  z-index: 2;
}
.wheel-btn { background: var(--neon-cyan); }

/* ===== 抽签 ===== */
.ball-container {
  display: flex; flex-direction: column;
  align-items: center; gap: 16px;
  width: 100%;
}
.ball-glass {
  width: min(75vw, 300px);
  height: min(75vw, 300px);
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  overflow: hidden;
  position: relative;
}
#ball-canvas { width: 100%; height: 100%; }
.ball-result {
  font-family: 'Orbitron', monospace;
  font-size: 18px; text-align: center;
  color: var(--neon-pink);
  text-shadow: 0 0 10px var(--neon-pink);
  min-height: 24px;
}
.ball-btn { background: var(--neon-pink); }
.lever-handle {
  display: inline-block;
  margin-right: 6px;
  animation: leverIdle 2s ease-in-out infinite;
}
@keyframes leverIdle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

/* ===== 粒子爆炸 ===== */
.explosion-container {
  position: fixed; inset: 0;
  cursor: pointer;
}
#explosion-canvas { width: 100%; height: 100%; }
.explosion-tap-hint {
  position: absolute; bottom: 120px; left: 50%; transform: translateX(-50%);
  font-size: 13px; color: var(--text-muted);
  animation: hintBlink 2s ease-in-out infinite;
  pointer-events: none;
}
@keyframes hintBlink {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}
.explosion-result {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  font-family: 'Orbitron', monospace;
  font-size: clamp(20px, 5vw, 32px);
  font-weight: 700;
  color: var(--neon-pink);
  text-shadow: 0 0 20px var(--neon-pink);
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}
.explosion-result.show { opacity: 1; }

/* ===== 老虎机 ===== */
.slot-container {
  display: flex; flex-direction: column;
  align-items: center; gap: 16px;
}
.slot-machine {
  display: flex; gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 0 30px rgba(0,0,0,0.5);
}
.slot-col {
  width: clamp(60px, 18vw, 80px);
  height: clamp(80px, 24vw, 110px);
  background: #0a0a14;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-dim);
  position: relative;
}
.slot-col::after {
  content: '';
  position: absolute; inset: 0;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
  pointer-events: none;
}
.slot-strip {
  display: flex; flex-direction: column;
  animation: none;
}
.slot-strip.spinning {
  animation: slotSpin 0.1s linear infinite;
}
.slot-strip.stopping {
  animation: slotStop 0.3s ease-out forwards;
}
.slot-symbols {
  display: flex; flex-direction: column;
  font-size: clamp(28px, 8vw, 40px);
  text-align: center;
  padding: 4px 0;
}
.slot-symbols .row {
  height: clamp(80px, 24vw, 110px);
  display: flex; align-items: center; justify-content: center;
}
@keyframes slotSpin {
  0% { transform: translateY(0); }
  100% { transform: translateY(-100%); }
}
@keyframes slotStop {
  0% { transform: translateY(0); }
  60% { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}
.slot-result {
  font-family: 'Orbitron', monospace;
  font-size: 18px; text-align: center;
  color: var(--neon-amber);
  text-shadow: 0 0 10px var(--neon-amber);
  min-height: 28px;
}
.slot-btn { background: var(--neon-amber); }

/* ===== 翻牌 ===== */
.card-container {
  display: flex; gap: 12px;
  justify-content: center;
  perspective: 800px;
}
.card-wrapper {
  cursor: pointer;
  width: clamp(56px, 16vw, 80px);
  height: clamp(80px, 24vw, 120px);
  transform-style: preserve-3d;
  transition: transform 0.6s;
  transform: rotateY(0deg);
}
.card-wrapper.flipped { transform: rotateY(180deg); }
.card-wrapper.collapsed { transform: scale(0.8) translateY(10px); opacity: 0.3; }
.card-face {
  position: absolute; inset: 0;
  border-radius: 10px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex; align-items: center; justify-content: center;
  font-size: clamp(20px, 6vw, 32px);
}
.card-back {
  background: linear-gradient(135deg, #1a0530 0%, #2d0a50 100%);
  border: 2px solid var(--neon-violet);
  box-shadow: 0 0 12px color-mix(in srgb, var(--neon-violet) 40%, transparent);
}
.card-back::before {
  content: '?';
  font-family: 'Orbitron', monospace;
  font-size: clamp(20px, 6vw, 28px);
  color: var(--neon-violet);
  text-shadow: 0 0 10px var(--neon-violet);
}
.card-front {
  background: var(--bg-card);
  border: 2px solid var(--text-muted);
  transform: rotateY(180deg);
  flex-direction: column;
  gap: 4px;
  padding: 4px;
  text-align: center;
}
.card-front .card-text {
  font-size: clamp(8px, 2.5vw, 11px);
  color: var(--text-primary);
  line-height: 1.3;
}
.card-front .card-rarity {
  font-size: clamp(8px, 2vw, 10px);
  color: var(--neon-violet);
}
.card-wrapper.SR .card-front { border-color: var(--neon-amber); }
.card-wrapper.SR .card-front .card-rarity { color: var(--neon-amber); }
.card-wrapper.SSR .card-front {
  border-color: var(--neon-violet);
  box-shadow: 0 0 20px var(--neon-violet), inset 0 0 20px color-mix(in srgb, var(--neon-violet) 20%, transparent);
  animation: ssrGlow 1.5s ease-in-out infinite;
}
.card-wrapper.SSR .card-front .card-rarity { color: var(--neon-violet); }
@keyframes ssrGlow {
  0%, 100% { box-shadow: 0 0 20px var(--neon-violet), inset 0 0 20px color-mix(in srgb, var(--neon-violet) 20%, transparent); }
  50% { box-shadow: 0 0 35px var(--neon-violet), inset 0 0 30px color-mix(in srgb, var(--neon-violet) 30%, transparent); }
}
.card-btn { background: var(--neon-violet); }

/* ===== 管理后台（iframe）===== */
#mod-admin { padding: 0; }
#admin-frame {
  width: 100%; height: 100%;
  border: none;
  background: var(--bg-card);
}

/* ===== 响应式 ===== */
@media (max-width: 480px) {
  .tab-btn { padding: 4px 6px; }
  .tab-icon { font-size: 16px; }
  .tab-label { font-size: 9px; }
}