/* Dark theme (default) - Professional Navy */
:root {
  --primary: #0f172a;
  --secondary: #1e293b;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --text: #ffffff;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  --muted: #64748b;
  --bg-glass: rgba(255, 255, 255, 0.08);
  --border-glass: rgba(255, 255, 255, 0.12);
  --blob-1: rgba(59, 130, 246, 0.15);
  --blob-2: rgba(96, 165, 250, 0.12);
  --blob-3: rgba(37, 99, 235, 0.1);
  --card-bg: rgba(30, 41, 59, 0.6);
  --card-border: rgba(148, 163, 184, 0.1);
}

/* Light theme - Clean Professional */
[data-theme="light"] {
  --primary: #ffffff;
  --secondary: #f8fafc;
  --accent: #2563eb;
  --accent-light: #1d4ed8;
  --text: #0a0f1a;
  --text-secondary: #1e293b;
  --text-muted: #475569;
  --muted: #64748b;
  --bg-glass: rgba(248, 250, 252, 0.85);
  --border-glass: rgba(15, 23, 42, 0.12);
  --blob-1: rgba(37, 99, 235, 0.08);
  --blob-2: rgba(59, 130, 246, 0.06);
  --blob-3: rgba(96, 165, 250, 0.05);
  --card-bg: rgba(255, 255, 255, 0.95);
  --card-border: rgba(15, 23, 42, 0.15);
}

body {
  color: var(--text);
  background: linear-gradient(to bottom right, var(--primary), var(--secondary));
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

.chainlink-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
}

.chainlink-text-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

/* Fallback for browsers that don't support background-clip */
@supports not (background-clip: text) {
  .chainlink-text-gradient {
    color: var(--accent);
    background: none;
  }
}

.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  border: 1px solid var(--border-glass);
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .glass {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(15, 23, 42, 0.12);
}

.grid-pattern {
  background-image: radial-gradient(var(--border-glass) 1px, transparent 1px);
  background-size: 30px 30px;
}

.project-link {
  color: var(--accent-light);
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
}

.project-link:hover {
  color: var(--accent);
  transform: translateX(2px);
}

[data-theme="light"] .project-link {
  color: #1d4ed8;
}

[data-theme="light"] .project-link:hover {
  color: #1e40af;
}

.btn {
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: white;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.btn-outline {
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--accent);
  color: var(--accent);
  background: transparent;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  cursor: pointer;
}

.btn-outline:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-2px);
}

.animate-blob {
  animation: blob 20s infinite;
}

.animation-delay-2000 {
  animation-delay: 2s;
}

.animation-delay-4000 {
  animation-delay: 4s;
}

.animate-scroll-down {
  animation: scroll-down 2s infinite;
}

@keyframes blob {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(20px, -20px) scale(1.1);
  }
  50% {
    transform: translate(0, 20px) scale(0.9);
  }
  75% {
    transform: translate(-20px, -20px) scale(1.05);
  }
}

@keyframes scroll-down {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.8;
  }
  50% {
    transform: translateY(6px);
    opacity: 0.4;
  }
}

/* Theme Toggle Button */
.theme-toggle {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.theme-toggle:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: var(--accent-light);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--accent-light);
  transition: transform 0.3s ease;
}

.theme-toggle:hover svg {
  transform: rotate(20deg);
}

/* Sun icon for light mode */
.theme-toggle .sun-icon {
  display: none;
}

[data-theme="light"] .theme-toggle .sun-icon {
  display: block;
}

[data-theme="light"] .theme-toggle .moon-icon {
  display: none;
}

/* Dark mode icon */
.theme-toggle .moon-icon {
  display: block;
}