/* ============================================
   Splatoon 3 Hub - 暗黑赛博朋克网格背景系统
   参考：splatoon_style_ui1.html 精确风格
   ============================================ */

/* ============================================
   全局CSS变量 - 斯普拉遁核心配色
   ============================================ */
:root {
  /* 斯普拉遁核心配色 - 扩展更多颜色 */
  --ink-pink: #ff4d8d;
  --ink-pink-glow: #ff0066;
  --ink-pink-dark: #c41e3a;
  --ink-cyan: #00e5ff;
  --ink-cyan-glow: #00b8d4;
  --ink-cyan-dark: #0097a7;
  --ink-yellow: #ffeb3b;
  --ink-yellow-glow: #ffd700;
  --ink-purple: #9c27b0;
  --ink-purple-glow: #7b1fa2;
  --ink-orange: #ff9800;
  --ink-orange-glow: #f57c00;
  --ink-lime: #76ff03;
  --ink-lime-glow: #64dd17;
  --ink-green: #00e676;
  --ink-blue: #2979ff;

  /* 背景色 */
  --bg-dark: #1a1a2e;
  --bg-darker: #0f0f1a;
  --bg-card: #16213e;
  --bg-overlay: rgba(15, 15, 26, 0.95);

  /* 故障效果颜色 */
  --glitch-red: #ff0000;
  --glitch-cyan: #00ffff;
  --glitch-green: #00ff00;
  --glitch-offset: 3px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-darker);
  color: #fff;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ============================================
   扩展背景效果
   ============================================ */

/* 动态墨水背景 */
.dynamic-ink-bg {
  position: fixed;
  inset: 0;
  background: var(--bg-darker);
  z-index: -3;
  overflow: hidden;
}

/* 墨汁团 - 降低opacity增强背景层次 */
.ink-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: inkMorph 15s ease-in-out infinite;
  opacity: 0.4;
}

.ink-blob-1 { /* 热粉色 */
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #ff4d8d 0%, transparent 70%);
  top: -200px;
  left: -200px;
  animation-delay: 0s;
}

.ink-blob-2 { /* 蓝绿 */
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #00e5ff 0%, transparent 70%);
  top: 40%;
  right: -150px;
  animation-delay: -5s;
}

.ink-blob-3 { /* 亮黄 */
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #ffeb3b 0%, transparent 70%);
  bottom: -100px;
  left: 30%;
  animation-delay: -10s;
}

.ink-blob-4 { /* 霓虹紫 */
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #9c27b0 0%, transparent 70%);
  top: 20%;
  right: 35%;
  animation-delay: -3s;
}

.ink-blob-5 { /* 荧光绿 */
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #76ff03 0%, transparent 70%);
  bottom: 30%;
  left: 10%;
  animation-delay: -7s;
}

@keyframes inkMorph {
  0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; transform: translate(0,0) scale(1); }
  25% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; transform: translate(5%,5%) scale(1.1); }
  50% { border-radius: 50% 60% 30% 60% / 30% 40% 70% 50%; transform: translate(-5%,-5%) scale(0.9); }
  75% { border-radius: 40% 30% 60% 50% / 60% 50% 30% 40%; transform: translate(5%,-5%) scale(1.1); }
}

/* ============================================
   高级霓虹网格系统 - 赛博朋克核心
   ============================================ */

/* 高级霓虹网格 - 主背景 */
.neon-grid-advanced {
  position: relative;
  background: var(--bg-darker);
  overflow: hidden;
}

.neon-grid-advanced::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 77, 141, 0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.25) 1px, transparent 1px);
  background-size: 50px 50px;
  transform: perspective(600px) rotateX(60deg);
  transform-origin: center top;
  animation: gridMoveAdvanced 15s linear infinite;
  opacity: 0.8;
}

.neon-grid-advanced::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, #0f0f1a 70%);
  pointer-events: none;
}

@keyframes gridMoveAdvanced {
  0% { background-position: 0 0; filter: hue-rotate(0deg); }
  50% { filter: hue-rotate(20deg); }
  100% { background-position: 0 50px; filter: hue-rotate(0deg); }
}

/* 地平线网格 */
.horizon-grid {
  position: relative;
  height: 400px;
  background: linear-gradient(to bottom, var(--bg-darker) 0%, var(--bg-dark) 100%);
  overflow: hidden;
}

.horizon-grid::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255, 77, 141, 0.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.2) 1px, transparent 1px);
  background-size: 100px 100px;
  transform: perspective(500px) rotateX(70deg);
  transform-origin: center bottom;
  animation: horizonMove 20s linear infinite;
}

@keyframes horizonMove {
  0% { background-position: 0 0; }
  100% { background-position: 0 100px; }
}

/* ============================================
   高级故障艺术效果
   ============================================ */

/* 重度故障文字 */
.glitch-text-heavy {
  position: relative;
  font-size: 4rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #fff;
  text-shadow:
    0 0 10px var(--ink-pink),
    0 0 20px var(--ink-pink),
    0 0 40px var(--ink-pink);
  animation: glitch-skew 4s infinite;
}

.glitch-text-heavy::before,
.glitch-text-heavy::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.glitch-text-heavy::before {
  color: var(--glitch-cyan);
  animation: glitch-anim-1 2s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
  transform: translate(-2px, -2px);
}

.glitch-text-heavy::after {
  color: var(--glitch-red);
  animation: glitch-anim-2 3s infinite linear alternate-reverse;
  clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
  transform: translate(2px, 2px);
}

@keyframes glitch-skew {
  0%, 100% { transform: skew(0deg); }
  20% { transform: skew(-2deg); }
  40% { transform: skew(2deg); }
  60% { transform: skew(-1deg); }
  80% { transform: skew(1deg); }
}

@keyframes glitch-anim-1 {
  0%, 100% {
    transform: translate(0);
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
  }
  10% {
    transform: translate(-5px, 3px);
    clip-path: polygon(0 10%, 100% 0, 100% 35%, 0 45%);
  }
  20% {
    transform: translate(5px, -3px);
    clip-path: polygon(0 0, 100% 20%, 100% 35%, 0 45%);
  }
  30% {
    transform: translate(-3px, 5px);
    clip-path: polygon(0 15%, 100% 0, 100% 45%, 0 25%);
  }
  40% {
    transform: translate(-3px, 5px);
    clip-path: polygon(0 5%, 100% 15%, 100% 45%, 0 35%);
  }
}

@keyframes glitch-anim-2 {
  0%, 100% {
    transform: translate(0);
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
  }
  15% {
    transform: translate(4px, -4px);
    clip-path: polygon(0 65%, 100% 55%, 100% 90%, 0 100%);
  }
  30% {
    transform: translate(-4px, 4px);
    clip-path: polygon(0 55%, 100% 65%, 100% 90%, 0 85%);
  }
  45% {
    transform: translate(-4px, 2px);
    clip-path: polygon(0 60%, 100% 55%, 100% 80%, 0 95%);
  }
  60% {
    transform: translate(2px, -2px);
    clip-path: polygon(0 55%, 100% 55%, 100% 90%, 0 100%);
  }
  75% {
    transform: translate(2px, -2px);
    clip-path: polygon(0 55%, 100% 65%, 100% 85%, 0 90%);
  }
}

/* ============================================
   响应式优化
   ============================================ */

/* 性能降级 - 减少动画 */
@media (prefers-reduced-motion: reduce) {
  .ink-blob,
  .neon-grid-advanced::before,
  .horizon-grid::before,
  .glitch-text-heavy::before,
  .glitch-text-heavy::after {
    animation: none !important;
  }

  .ink-blob {
    opacity: 0.2;
  }
}

/* ============================================
   大屏Hero区域样式优化
   ============================================ */

/* Hero区域容器 - 移除固定高度，内容自适应 */
.hero-section {
  position: relative;
  min-height: 40vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hero背景层 */
.hero-background-layer {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--bg-darker) 0%, transparent 100%);
  z-index: -1;
}

/* 大屏(≥1920px)内容区域居中 */
@media (min-width: 1920px) {
  .hero-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
  }
}
}

/* 移动端优化 */
@media (max-width: 768px) {
  .ink-blob-1, .ink-blob-2 {
    width: 300px;
    height: 300px;
  }
  .ink-blob-3, .ink-blob-4,
  .ink-blob-5, .ink-blob-6 {
    display: none;
  }

  .neon-grid-advanced::before {
    background-size: 30px 30px;
  }

  .horizon-grid {
    height: 200px;
  }

  .glitch-text-heavy {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .ink-blob {
    opacity: 0.3;
  }

  .ink-blob-1, .ink-blob-2 {
    width: 200px;
    height: 200px;
  }

  .ink-blob-3, .ink-blob-4,
  .ink-blob-5, .ink-blob-6 {
    display: none;
  }
}

/* ============================================
   全局微光层 - 增强视觉层次
   ============================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(255,77,141,0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: -2;
}