/* StarRise Linktree - Y2K Cyberpop */

:root {
  /* Colors */
  --bg-primary: #FAFAFA;
  --bg-button: #FFFFFF;
  --text-primary: #1A1A2E;
  --text-secondary: #6B7280;
  --accent-pink: #FF6B9D;
  --accent-purple: #C44FFF;
  --accent-blue: #6E7BFF;
  
  /* Gradients */
  --gradient-rainbow: linear-gradient(135deg, #FF6B9D, #C44FFF, #6E7BFF);
  --gradient-border: linear-gradient(135deg, #FF6B9D, #C44FFF, #6E7BFF);
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-glow-pink: 0 0 20px rgba(255, 107, 157, 0.3);
  --shadow-glow-purple: 0 0 20px rgba(196, 79, 255, 0.3);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* Container */
.container {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

/* Header */
.header {
  text-align: center;
}

.logo {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-rainbow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-xs);
}

.tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Intro Section */
.intro-section {
  width: 100%;
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.group-photo {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
  border-radius: var(--radius-lg);
  margin: 0 auto var(--spacing-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: #ccc;
  border: 2px solid transparent;
  background-image: 
    linear-gradient(var(--bg-primary), var(--bg-primary)),
    var(--gradient-border);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

.group-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.intro-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  font-weight: 500;
}

/* Language Switcher */
.lang-switcher {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  display: flex;
  gap: var(--spacing-xs);
  background: var(--bg-button);
  padding: 4px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.lang-switcher a {
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.lang-switcher a:hover {
  color: var(--text-primary);
}

.lang-switcher a.active {
  background: var(--gradient-rainbow);
  color: white;
}

/* Links */
.links {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.link-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-button);
  border: 2px solid transparent;
  background-image: 
    linear-gradient(var(--bg-button), var(--bg-button)),
    var(--gradient-border);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  border-radius: var(--radius-md);
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    var(--shadow-sm);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.link-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-rainbow);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.link-button:hover {
  transform: translateY(-2px);
  box-shadow: 
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    var(--shadow-glow-pink);
}

.link-button:hover::before {
  opacity: 0.05;
}

.link-button:active {
  transform: translateY(0);
}

.link-button .icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.link-button .text {
  position: relative;
  z-index: 1;
}

.link-button .arrow {
  margin-left: auto;
  opacity: 0.4;
  position: relative;
  z-index: 1;
}

/* Members Section */
.members-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--spacing-md);
}

.member-card {
  background: var(--bg-button);
  border: 2px solid transparent;
  background-image: 
    linear-gradient(var(--bg-button), var(--bg-button)),
    var(--gradient-border);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  border-radius: var(--radius-md);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.member-photo {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: #ccc;
}

.member-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.member-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-purple);
}

.member-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  background: var(--gradient-rainbow);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.member-name-en {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.member-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--gradient-rainbow);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.member-link:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-glow-pink);
}

.member-link .icon {
  width: 16px;
  height: 16px;
}

/* Back Button */
.back-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: 2px solid var(--text-secondary);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  margin-bottom: var(--spacing-md);
}

.back-button:hover {
  border-color: var(--accent-pink);
  color: var(--accent-pink);
}

/* Footer */
.footer {
  margin-top: auto;
  padding-top: var(--spacing-xl);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.link-button {
  animation: fadeInUp 0.4s ease forwards;
  opacity: 0;
}

.link-button:nth-child(1) { animation-delay: 0.05s; }
.link-button:nth-child(2) { animation-delay: 0.1s; }
.link-button:nth-child(3) { animation-delay: 0.15s; }
.link-button:nth-child(4) { animation-delay: 0.2s; }
.link-button:nth-child(5) { animation-delay: 0.25s; }
.link-button:nth-child(6) { animation-delay: 0.3s; }
.link-button:nth-child(7) { animation-delay: 0.35s; }
.link-button:nth-child(8) { animation-delay: 0.4s; }

.member-card {
  animation: fadeInUp 0.4s ease forwards;
  opacity: 0;
}

.member-card:nth-child(1) { animation-delay: 0.1s; }
.member-card:nth-child(2) { animation-delay: 0.15s; }
.member-card:nth-child(3) { animation-delay: 0.2s; }
.member-card:nth-child(4) { animation-delay: 0.25s; }
.member-card:nth-child(5) { animation-delay: 0.3s; }

/* Responsive */
@media (max-width: 480px) {
  .logo {
    font-size: 2rem;
  }
  
  .lang-switcher {
    position: relative;
    top: 0;
    right: 0;
    margin-bottom: var(--spacing-md);
  }
  
  .members-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}