/* ===== Wheel of Fortune - 顶级拟态特效重构版 ===== */
:root {
    --primary-500: #8b5cf6; --primary-600: #7c3aed; --primary-700: #6d28d9;
    --secondary-500: #ec4899; --secondary-600: #db2777;
    --accent-blue: #0ea5e9;
    --bg-gradient-start: #e0f2fe; --bg-gradient-middle: #f0f9ff; --bg-gradient-end: #fdf4ff;
    --surface-01: rgba(255, 255, 255, 0.9); --surface-02: rgba(255, 255, 255, 0.7);
    --text-primary: #1f2937; --text-secondary: #4b5563; --text-tertiary: #6b7280;
    --border-light: rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1); --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.dark-mode {
    --bg-gradient-start: #1e1b4b; --bg-gradient-middle: #1e293b; --bg-gradient-end: #312e81;
    --surface-01: rgba(30, 41, 59, 0.85); --surface-02: rgba(30, 41, 59, 0.6);
    --text-primary: #f9fafb; --text-secondary: #e5e7eb; --text-tertiary: #d1d5db;
    --border-light: rgba(255, 255, 255, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4); --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-middle), var(--bg-gradient-end));
    color: var(--text-primary); transition: all 0.5s ease; overflow-x: hidden;
}

/* 动态背景 */
.grid-background { position: fixed; inset: 0; z-index: -3; opacity: 0.05; background-image: radial-gradient(circle at 20% 30%, var(--primary-500) 0%, transparent 15%), radial-gradient(circle at 80% 70%, var(--secondary-500) 0%, transparent 15%), radial-gradient(circle at 40% 80%, var(--accent-blue) 0%, transparent 15%); }
.geometric-shapes { position: fixed; inset: 0; z-index: -2; opacity: 0.15; }
.shape { position: absolute; opacity: 0.2; background: linear-gradient(45deg, var(--primary-500), var(--secondary-500)); animation: shapeFloat 20s infinite linear; }
.shape:nth-child(1) { width: 300px; height: 300px; border-radius: 30% 70% 70% 30%/30% 30% 70% 70%; top: -100px; left: -100px; }
.shape:nth-child(2) { width: 400px; height: 400px; border-radius: 50%; bottom: -150px; right: -100px; animation-delay: -5s; }
.shape:nth-child(3) { width: 200px; height: 200px; border-radius: 60% 40% 30% 70%; top: 40%; left: 80%; animation-delay: -10s; }
@keyframes shapeFloat { 100% { transform: translate(100px, 50px) rotate(360deg); } }

/* 标题图标体系 */
.icon-container { width: 80px; height: 80px; }
.icon-glow { position: absolute; inset: -5px; background: linear-gradient(45deg, var(--primary-500), var(--secondary-500)); border-radius: 20px; filter: blur(15px); opacity: 0.6; animation: glowRotate 8s linear infinite; }
.icon-container i { background: linear-gradient(135deg, var(--primary-500), var(--secondary-500)); border-radius: 20px; display: flex; justify-content: center; align-items: center; box-shadow: var(--shadow-lg); width: 100%; height: 100%; }
@keyframes glowRotate { 100% { transform: rotate(360deg); } }
.title { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; background: linear-gradient(135deg, var(--primary-600), var(--secondary-600), var(--accent-blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; letter-spacing: -1px; }

/* 主题切换与通知 */
.theme-toggle { top: 24px; right: 24px; width: 52px; height: 52px; background: var(--surface-01); backdrop-filter: blur(20px); border: 1px solid var(--border-light); cursor: pointer; transition: 0.3s ease; color: var(--text-secondary); font-size: 1.2rem; }
.theme-toggle:hover { transform: scale(1.1) rotate(15deg); border-color: var(--primary-500); color: var(--primary-600); }
.notification { position: fixed; top: 30px; right: 30px; background: linear-gradient(135deg, var(--primary-500), var(--primary-600)); color: white; padding: 15px 25px; border-radius: 12px; box-shadow: var(--shadow-xl); transform: translateX(150%); transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); z-index: 9999; font-weight: 600; }
.notification.show { transform: translateX(0); }

/* 核心毛玻璃卡片 */
.custom-glass-card { background: var(--surface-01); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid var(--border-light); border-radius: 24px; box-shadow: var(--shadow-lg); transition: all 0.4s ease; }
.card-glow { position: absolute; inset: -2px; background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(236, 72, 153, 0.1)); z-index: -1; opacity: 0; transition: 0.4s ease; border-radius: 26px; }
.custom-glass-card:hover .card-glow { opacity: 1; }

/* 输入控件与颜色盘 */
.custom-input { width: 100%; padding: 14px 16px; border: 1px solid var(--border-light); border-radius: 16px; background: var(--surface-02); color: var(--text-primary); font-size: 1rem; outline: none; transition: 0.3s ease; resize: vertical; }
.custom-input:focus { border-color: var(--primary-500); box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15); background: var(--surface-01); }
.bg-custom-light { background: var(--surface-02); border: 1px solid var(--border-light); }

.color-option { width: 45px; height: 45px; border-radius: 12px; cursor: pointer; border: 3px solid transparent; transition: all 0.3s ease; box-shadow: var(--shadow-sm); }
.color-option:hover { transform: scale(1.1); }
.color-option.active { border-color: var(--text-primary); transform: scale(1.15); box-shadow: var(--shadow-md); }

/* 按钮体系 */
.btn-main { border: none; background: linear-gradient(135deg, var(--primary-500), var(--primary-700)); color: white; border-radius: 16px; font-weight: 600; transition: 0.3s ease; box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3); }
.btn-main:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4); }
.btn-alt { border: none; background: linear-gradient(135deg, var(--secondary-500), var(--secondary-700)); color: white; border-radius: 16px; font-weight: 600; transition: 0.3s ease; box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3); }
.btn-alt:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(236, 72, 153, 0.4); }
.btn-outline { border: 2px solid var(--border-light); background: transparent; color: var(--text-primary); border-radius: 16px; font-weight: 600; transition: 0.3s ease; }
.btn-outline:hover { background: var(--surface-02); border-color: var(--text-secondary); }

/* 🎯 转盘与指针专属特效 */
.pointer-container { position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 60px; height: 60px; z-index: 10; pointer-events: none; }
.pointer-arrow { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); border-left: 20px solid transparent; border-right: 20px solid transparent; border-top: 40px solid var(--secondary-500); z-index: 11; filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3)); }
.pointer-circle { position: absolute; top: 15px; left: 50%; transform: translateX(-50%); width: 35px; height: 35px; background: var(--surface-01); border-radius: 50%; border: 4px solid var(--secondary-500); z-index: 10; box-shadow: var(--shadow-sm); }

.highlight { animation: highlightText 0.6s ease; }
@keyframes highlightText { 50% { transform: scale(1.05); color: var(--secondary-500); } }

.footer-b { background: linear-gradient(135deg, var(--primary-500), var(--secondary-500)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }

@media (max-width: 768px) { .theme-toggle { top: 15px; right: 15px; width: 45px; height: 45px; } .color-option { width: 38px; height: 38px; } }