/* Awwwards Style - 流体背景、毛玻璃卡片、高级字体、微动效 */

/* ========== Google 字体 ========== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Poppins:wght@300;400;500;600;700&display=swap');

/* ========== CSS 变量 ========== */
:root {
  --pink: #FFC7E9;
  --light-blue: #E0F2FE;
  --cream-white: #FFFFFF;
  --text-dark: #2c3e50;
  --text-soft-blue: #3d5a80;
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.3);
  --shadow-soft: rgba(0, 0, 0, 0.1);
  --shadow-hover: rgba(0, 0, 0, 0.2);
}

/* ========== 全局样式重置 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Outfit', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-dark);
  letter-spacing: 0.02em;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

#root {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ========== 流体背景动画 ========== */
body::before {
  content: '';
  position: fixed;
  top: -10%;
  left: -10%;
  width: 120%;
  height: 120%;
  z-index: -1;
  background: 
    radial-gradient(circle at 20% 30%, var(--pink) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--light-blue) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, var(--cream-white) 0%, transparent 60%),
    conic-gradient(from 0deg at 50% 50%, 
      var(--pink) 0deg, 
      var(--light-blue) 120deg, 
      var(--cream-white) 240deg, 
      var(--pink) 360deg);
  background-size: 200% 200%, 200% 200%, 200% 200%, 300% 300%;
  animation: fluidBackground 25s ease-in-out infinite;
  will-change: background-position, transform;
  filter: blur(60px);
  opacity: 0.8;
}

@keyframes fluidBackground {
  0%, 100% {
    background-position: 0% 50%, 100% 50%, 50% 50%, 0% 0%;
    transform: rotate(0deg);
  }
  25% {
    background-position: 100% 0%, 0% 100%, 50% 50%, 25% 25%;
    transform: rotate(5deg);
  }
  50% {
    background-position: 50% 100%, 50% 0%, 100% 50%, 50% 50%;
    transform: rotate(0deg);
  }
  75% {
    background-position: 0% 50%, 100% 50%, 0% 0%, 75% 75%;
    transform: rotate(-5deg);
  }
}

/* 额外的 SVG 流体层（可选，增强效果） */
body::after {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  z-index: -1;
  background-image: 
    url("data:image/svg+xml,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Cdefs%3E%3CradialGradient id='grad1' cx='50%25' cy='50%25'%3E%3Cstop offset='0%25' style='stop-color:%23FFC7E9;stop-opacity:0.4' /%3E%3Cstop offset='100%25' style='stop-color:%23E0F2FE;stop-opacity:0.1' /%3E%3C/radialGradient%3E%3C/defs%3E%3Ccircle cx='50' cy='50' r='40' fill='url(%23grad1)' /%3E%3C/svg%3E");
  background-size: 400px 400px;
  opacity: 0.3;
  animation: floatPattern 40s linear infinite;
  will-change: transform;
  pointer-events: none;
}

@keyframes floatPattern {
  0% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  33% {
    transform: translate(150px, 150px) rotate(120deg) scale(1.2);
  }
  66% {
    transform: translate(-100px, 200px) rotate(240deg) scale(0.9);
  }
  100% {
    transform: translate(0, 0) rotate(360deg) scale(1);
  }
}

/* ========== 毛玻璃卡片样式 ========== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 32px;
  box-shadow: 
    0 8px 32px var(--shadow-soft),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  will-change: transform, box-shadow;
}

/* 毛玻璃卡片光泽效果 */
.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s ease;
}

.glass-card:hover::before {
  left: 100%;
}

/* 悬停效果 - 上浮和阴影扩散 */
.glass-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 
    0 20px 60px var(--shadow-hover),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  border-color: rgba(255, 255, 255, 0.4);
}

/* ========== 文字样式 ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-soft-blue);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  line-height: 1.3;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: 0.08em;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

p, span, div {
  color: var(--text-dark);
  letter-spacing: 0.03em;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

/* ========== 按钮样式 ========== */
.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 0.875rem 2rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--text-soft-blue);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 16px var(--shadow-soft);
  position: relative;
  overflow: hidden;
  will-change: transform, box-shadow;
}

.btn-glass::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-glass:hover::before {
  width: 300px;
  height: 300px;
}

.btn-glass:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 40px var(--shadow-hover);
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--text-soft-blue);
}

.btn-glass:active {
  transform: translateY(-2px) scale(1.02);
  transition: all 0.1s ease;
}

/* ========== 计时器容器样式 ========== */
.timer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  text-align: center;
}

.timer-display {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-soft-blue);
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  line-height: 1.2;
}

.timer-label {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(0.875rem, 2vw, 1.125rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-dark);
  text-transform: uppercase;
  opacity: 0.8;
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
  .glass-card {
    border-radius: 24px;
    padding: 1.5rem;
    margin: 1rem;
  }

  .glass-card:hover {
    transform: translateY(-4px) scale(1.01);
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .timer-display {
    font-size: 2.5rem;
  }

  .btn-glass {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .glass-card {
    border-radius: 20px;
    padding: 1.25rem;
    margin: 0.75rem;
  }

  .timer-display {
    font-size: 2rem;
  }
}

/* ========== 浏览器兼容性 ========== */
@supports not (backdrop-filter: blur(20px)) {
  .glass-card,
  .btn-glass {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.5);
  }
}

/* ========== 平滑滚动 ========== */
html {
  scroll-behavior: smooth;
}

/* ========== 选择文本样式 ========== */
::selection {
  background: rgba(255, 199, 233, 0.3);
  color: var(--text-soft-blue);
}

::-moz-selection {
  background: rgba(255, 199, 233, 0.3);
  color: var(--text-soft-blue);
}

/* ========== 加载动画 ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* ========== 通用容器样式 ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* ========== 自动应用样式到常见元素 ========== */
#root > * {
  position: relative;
  z-index: 1;
}

/* 自动为包含数字的元素添加样式（计时器） */
#root [class*="timer"],
#root [class*="countdown"],
#root [class*="time"] {
  font-family: 'Outfit', sans-serif;
  letter-spacing: 0.05em;
}

/* ========== 响应式优化 ========== */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  body::before {
    filter: blur(40px);
  }
}