/* ==========================================================================
   Luna Dimmer - 创新交互与高定动效系统 (Next-Gen High-End Animation Suite)
   Inspired by Apple HIG, Linear.app, Raycast, and Dynamic Island Aesthetics
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 基础动效关键帧与流光定义
   -------------------------------------------------------------------------- */

/* 标题流光字效 (Apple Style Text Shimmer) */
@keyframes textShimmer {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* 呼吸光晕 (Living Pulse) */
@keyframes ambientPulse {
  0%, 100% {
    opacity: 0.12;
    transform: scale(1);
  }
  50% {
    opacity: 0.22;
    transform: scale(1.04);
  }
}

/* 边框微光掠影 (Border Glint Sweep) */
@keyframes borderGlintSweep {
  0% {
    opacity: 0;
    transform: translateX(-100%);
  }
  40% {
    opacity: 0.8;
  }
  100% {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* --------------------------------------------------------------------------
   2. 导航栏滚动悬浮深度感与顶栏流光进度线
   -------------------------------------------------------------------------- */
header {
  transition: background 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: background, box-shadow;
}

body.scrolled header {
  background: rgba(7, 8, 11, 0.88);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.scroll-progress-line {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, #F5B338 0%, #FCD34D 45%, #38BDF8 100%);
  box-shadow: 0 0 8px rgba(245, 179, 56, 0.6), 0 0 16px rgba(56, 189, 248, 0.4);
  pointer-events: none;
  z-index: 102;
  transition: width 0.05s ease-out;
  border-radius: 0 2px 2px 0;
}

/* --------------------------------------------------------------------------
   3. 双向滚动微距进出场系统 (GPU-Accelerated Zero-Blur Reveal System)
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 26px, 0);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
  backface-visibility: hidden;
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

/* 横向微滑动入场 */
[data-reveal="left"] {
  transform: translate3d(-32px, 0, 0);
}
[data-reveal="left"].is-revealed {
  transform: translate3d(0, 0, 0);
}

[data-reveal="right"] {
  transform: translate3d(32px, 0, 0);
}
[data-reveal="right"].is-revealed {
  transform: translate3d(0, 0, 0);
}

/* 阶梯延迟律动 (Apple/OpenAI Stagger Cascade) */
[data-reveal-stagger="1"] { transition-delay: 60ms; }
[data-reveal-stagger="2"] { transition-delay: 120ms; }
[data-reveal-stagger="3"] { transition-delay: 180ms; }
[data-reveal-stagger="4"] { transition-delay: 240ms; }
[data-reveal-stagger="5"] { transition-delay: 300ms; }
[data-reveal-stagger="6"] { transition-delay: 360ms; }

/* --------------------------------------------------------------------------
   4. Linear / Raycast 级光感鼠标动态追踪与微晶边框折射 (Spotlight Cards)
   -------------------------------------------------------------------------- */
.has-spotlight {
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.has-spotlight::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    420px circle at var(--mouse-x, -999px) var(--mouse-y, -999px),
    rgba(245, 179, 56, 0.10),
    rgba(56, 189, 248, 0.04) 40%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 1;
}

.has-spotlight:hover::before {
  opacity: 1;
}

/* 边框微光随动 (Border Specular Glint) */
.has-spotlight::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: radial-gradient(
    300px circle at var(--mouse-x, -999px) var(--mouse-y, -999px),
    rgba(245, 179, 56, 0.55),
    rgba(56, 189, 248, 0.35) 35%,
    transparent 70%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 2;
}

.has-spotlight:hover::after {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   5. 仿真控制中心：稳固精准无抖动 (Stable & Pixel-Perfect Control Card)
   -------------------------------------------------------------------------- */
.workbench-card-wrapper {
  position: relative;
}

.luna-control-card {
  position: relative;
  transform: none !important;
  will-change: auto !important;
  transition: box-shadow 0.25s ease !important;
}

.luna-control-card:hover {
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.70),
              0 0 35px rgba(245, 179, 56, 0.10),
              0 0 0 1px rgba(255, 255, 255, 0.16) inset !important;
}

.has-spotlight > * {
  position: relative;
  z-index: 3;
}

/* --------------------------------------------------------------------------
   7. Hero 背景星尘微粒子画布 (Hero Cosmic Dust Canvas)
   -------------------------------------------------------------------------- */
.hero-cosmic-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.65;
}

.hero-section {
  position: relative;
}

/* 标题流光增强 */
.hero-title {
  background: linear-gradient(
    135deg,
    #FFFFFF 0%,
    #FFFFFF 30%,
    #F5B338 50%,
    #38BDF8 65%,
    #FFFFFF 85%,
    #CBD5E1 100%
  ) !important;
  background-size: 240% 100% !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  animation: textShimmer 10s ease-in-out infinite alternate;
}

/* --------------------------------------------------------------------------
   8. 平滑平移与数字跳动 (Metric Numbers Counter)
   -------------------------------------------------------------------------- */
.metric-val span {
  display: inline-block;
  font-variant-numeric: tabular-nums;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 快捷键表格行交错微亮 */
.hotkey-table tbody tr {
  transition: background 0.25s ease, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hotkey-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateX(4px);
}

/* 常见问答展开/悬浮微妙微距感 */
.faq-item {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item:hover {
  transform: translateY(-3px);
  background: rgba(26, 29, 38, 0.92) !important;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
}

/* --------------------------------------------------------------------------
   9. 辅助功能：尊重用户减弱动态效果设置
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }
  .hero-title {
    animation: none !important;
  }
  .dynamic-luminary-island {
    transition: opacity 0.2s ease !important;
  }
  .luna-control-card {
    transition: none !important;
    transform: none !important;
  }
}