@import "tailwindcss";

/* CSS 变量定义 */
:root {
  /* 背景色 */
  --sa-bg-primary: #0a0a0f;
  --sa-bg-secondary: #12121a;
  --sa-bg-tertiary: #1a1a25;

  /* 强调色 */
  --sa-accent-cyan: #00d4ff;
  --sa-accent-sky: #0ea5e9;
  --sa-accent-blue: #3b82f6;

  /* 文字色 */
  --sa-text-primary: #f0f0f5;
  --sa-text-secondary: #a0a0b0;
  --sa-text-muted: #606070;

  /* 边框色 */
  --sa-border-primary: rgba(255, 255, 255, 0.1);
  --sa-border-glow: rgba(0, 212, 255, 0.3);

  /* 玻璃效果 */
  --sa-glass-bg: rgba(255, 255, 255, 0.03);
  --sa-glass-border: rgba(255, 255, 255, 0.08);
}

/* 基础样式 */
html, body, #root {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--sa-bg-primary);
  color: var(--sa-text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 网格背景图案 */
.grid-pattern {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
}

/* 动态光晕 */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.glow-orb-1 {
  width: 384px;
  height: 384px;
  background: var(--sa-accent-cyan);
  opacity: 0.15;
  top: -100px;
  left: -100px;
  filter: blur(120px);
  animation: float-1 8s ease-in-out infinite;
}

.glow-orb-2 {
  width: 320px;
  height: 320px;
  background: var(--sa-accent-sky);
  opacity: 0.15;
  bottom: -80px;
  right: -80px;
  filter: blur(100px);
  animation: float-2 10s ease-in-out infinite;
}

.glow-orb-3 {
  width: 600px;
  height: 600px;
  background: var(--sa-accent-blue);
  opacity: 0.08;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(150px);
  animation: pulse 6s ease-in-out infinite;
}

/* 光晕动画 */
@keyframes float-1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, 20px); }
}

@keyframes float-2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-20px, -30px); }
}

@keyframes pulse {
  0%, 100% { opacity: 0.08; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.12; transform: translate(-50%, -50%) scale(1.1); }
}

/* 数据流动效果 */
.data-stream {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.data-stream::before,
.data-stream::after {
  content: '';
  position: absolute;
  width: 2px;
  height: 100px;
  background: linear-gradient(180deg, transparent, var(--sa-accent-cyan), transparent);
  opacity: 0.3;
  animation: stream 4s linear infinite;
}

.data-stream::before {
  left: 20%;
  animation-delay: 0s;
}

.data-stream::after {
  left: 80%;
  animation-delay: 2s;
}

@keyframes stream {
  0% { top: -100px; opacity: 0; }
  10% { opacity: 0.3; }
  90% { opacity: 0.3; }
  100% { top: 100%; opacity: 0; }
}

/* 玻璃拟态卡片 */
.glass-card {
  background: var(--sa-glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--sa-glass-border);
  border-radius: 16px;
  box-shadow:
    0 4px 30px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.glass-card:hover {
  border-color: var(--sa-border-glow);
  box-shadow:
    0 4px 30px rgba(0, 0, 0, 0.3),
    0 0 30px rgba(0, 212, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* 发光按钮 */
.glow-button {
  background: linear-gradient(135deg, var(--sa-accent-cyan), var(--sa-accent-blue));
  color: white;
  border: none;
  padding: 12px 32px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.glow-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.glow-button:hover::before {
  left: 100%;
}

.glow-button:hover {
  box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
  transform: translateY(-2px);
}

/* 文字渐变 */
.text-gradient {
  background: linear-gradient(135deg, var(--sa-accent-cyan), var(--sa-accent-sky), var(--sa-accent-blue));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 扫描线效果 */
.scanline {
  position: absolute;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--sa-accent-cyan), transparent);
  opacity: 0.5;
  animation: scan 3s linear infinite;
}

@keyframes scan {
  0% { top: 0; opacity: 0; }
  50% { opacity: 0.5; }
  100% { top: 100%; opacity: 0; }
}