/**
 * Lumora Hero Section 自定义样式
 * 配合 Tailwind CSS CDN 使用
 */

/* ===== 本地字体：Instrument Serif ===== */
@font-face {
  font-family: 'Instrument Serif';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('../assets/fonts/instrument-serif-italic-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('../assets/fonts/instrument-serif-italic-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../assets/fonts/instrument-serif-regular-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Instrument Serif';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../assets/fonts/instrument-serif-regular-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ===== 全局字体 ===== */
html,
body {
  font-family: 'Instrument Serif', serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Liquid Glass 效果 ===== */
.liquid-glass {
  background: rgba(255, 255, 255, 0.01);
  background-blend-mode: luminosity;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: none;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.liquid-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.4px;
  background: linear-gradient(180deg,
    rgba(255, 255, 255, 0.45) 0%,
    rgba(255, 255, 255, 0.15) 20%,
    rgba(255, 255, 255, 0) 40%,
    rgba(255, 255, 255, 0) 60%,
    rgba(255, 255, 255, 0.15) 80%,
    rgba(255, 255, 255, 0.45) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ===== Train-Bob 动画（PNG 覆盖层） ===== */
@keyframes train-bob {
  0%, 100% {
    transform: translateY(0) scale(1.03);
  }
  50% {
    transform: translateY(-6px) scale(1.03);
  }
}

.train-bob {
  animation: train-bob 3s ease-in-out infinite;
  will-change: transform;
}

/* ===== Deep Woods 深色模式（第3个视频激活时） ===== */
/* Hero 内容过渡到 #182C41，导航栏和底部统计保持白色 */

body.dark-woods .hero-heading {
  color: #182C41;
}

body.dark-woods .hero-subtext {
  color: rgba(24, 44, 65, 0.8);
}

body.dark-woods .hero-center .liquid-glass span {
  color: rgba(24, 44, 65, 0.9);
}

body.dark-woods .hero-email input {
  color: #182C41;
}

body.dark-woods .hero-email input::placeholder {
  color: rgba(24, 44, 65, 0.6);
}

/* 视频切换按钮：Deep Woods 下的颜色 */
body.dark-woods .video-switch-btn {
  color: rgba(24, 44, 65, 0.5);
  border-color: transparent;
}

body.dark-woods .video-switch-btn:hover {
  color: rgba(24, 44, 65, 0.8);
}

body.dark-woods .video-switch-btn.active {
  color: #182C41;
  border-color: #182C41;
}

/* 默认（非 Deep Woods）视频切换按钮 active 状态 */
.video-switch-btn.active {
  color: #ffffff;
  border-color: #ffffff;
  opacity: 1;
}

/* ===== 移动端菜单 ===== */

/* 菜单打开时：覆盖层可见 */
body.mobile-menu-open #mobile-menu {
  opacity: 1;
  pointer-events: auto;
}

/* 菜单打开时：链接入场动画 */
body.mobile-menu-open .mobile-nav-link {
  opacity: 1;
  transform: translateY(0);
}

body.mobile-menu-open a.mobile-nav-link {
  opacity: 1;
  transform: scale(1);
}

/* 汉堡按钮图标切换 */
/* 关闭状态（默认）：menu 可见，close 隐藏 */
.menu-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.close-icon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.75);
}

/* 打开状态：menu 旋转出去，close 旋转进来 */
body.mobile-menu-open .menu-icon {
  opacity: 0;
  transform: rotate(90deg) scale(0.75);
}

body.mobile-menu-open .close-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* ===== 视频层确保覆盖全屏 ===== */
.video-layer {
  will-change: opacity;
}

/* ===== 滚动条隐藏（单屏无滚动） ===== */
body {
  overflow: hidden;
}

/* ===== 响应式微调 ===== */
@media (max-width: 640px) {
  .hero-center {
    padding-top: 2rem;
  }
}