:root {
  /* Default: Light Theme */
  --bg-color: #f8fafc;
  --text-color: #0f172a;
  --text-muted: #64748b;
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --card-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
}

[data-theme="dark"] {
  --bg-color: #0f172a;
  --text-color: #f8fafc;
  --text-muted: #94a3b8;
  --primary-color: #60a5fa;
  --primary-hover: #3b82f6;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);
  --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.site-header {
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.vibe-text {
  color: var(--primary-color);
}

.controls {
  display: flex;
  gap: 1.5rem;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.glass-select {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-color);
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.glass-select:hover {
  border-color: var(--primary-color);
}

/* Main Content */
.main-content {
  flex: 1;
}

.hero {
  padding: 6rem 0;
  text-align: center;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 3rem;
  text-align: center;
}

/* Projects Grid */
.projects {
  padding: 4rem 0 8rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.1);
  border-color: var(--primary-color);
}

.project-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.project-name {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.project-desc {
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
}

.primary-btn {
  background-color: var(--primary-color);
  color: #ffffff;
}

.primary-btn:hover {
  background-color: var(--primary-hover);
  transform: scale(1.05);
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--glass-border);
  background: var(--glass-bg);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--primary-color);
}

.separator {
  margin: 0 0.5rem;
  color: var(--glass-border);
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.counter-badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-color);
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
  }
  .hero-title {
    font-size: 3rem;
  }
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    padding: 1rem 0;
    transition: bottom 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1000;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

.cookie-banner.show {
    bottom: 0;
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    gap: 2rem;
}

.cookie-text {
    font-size: 0.9rem;
    color: var(--text-color);
    line-height: 1.5;
}

.cookie-btn {
    padding: 0.6rem 1.5rem;
    background: var(--text-color);
    color: var(--bg-color);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
    white-space: nowrap;
}

.cookie-btn:hover {
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .cookie-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}