/* ==========================================================================
   Starlight Media Group — Apple-inspired, studio-grade design
   ========================================================================== */

:root {
  /* Dark theme (default) */
  --bg: #000000;
  --bg-elevated: #0a0a0a;
  --surface: #141414;
  --surface-hover: #1a1a1a;
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #f5f5f7;
  --text-secondary: #86868b;
  --text-tertiary: #6e6e73;
  --accent: #2997ff;
  --accent-hover: #0077ed;

  /* Typography */
  --font-display: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
  --space-2xl: 120px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --duration: 0.3s;
}

/* Light theme */
body[data-theme="light"] {
  --bg: #ffffff;
  --bg-elevated: #fafafa;
  --surface: #f5f5f7;
  --surface-hover: #e8e8ed;
  --border: rgba(0, 0, 0, 0.06);
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary: #86868b;
  --accent: #0066cc;
  --accent-hover: #004499;
}

/* ==========================================================================
   Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg);
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--duration) var(--ease);
}

body[data-theme="light"] .nav {
  background: rgba(255, 255, 255, 0.8);
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-md);
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration) var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.nav-toggle:hover {
  background: var(--surface);
  color: var(--text-primary);
}

.nav-toggle .icon-close {
  display: none;
}

.nav-toggle.open .icon-menu {
  display: none;
}

.nav-toggle.open .icon-close {
  display: block;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.theme-toggle:hover {
  background: var(--surface);
  color: var(--text-primary);
}

.icon-moon { display: block; }
.icon-sun { display: none; }

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

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-md);
  text-align: center;
}

.hero-content {
  max-width: 800px;
}

.hero-eyebrow {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 8vw, 80px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 400;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  line-height: 1.5;
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 980px;
  transition: all var(--duration) var(--ease);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: scale(1.02);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--surface);
}

/* ==========================================================================
   Services
   ========================================================================== */

.services {
  padding: var(--space-2xl) var(--space-md);
  background: var(--bg-elevated);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.section-eyebrow {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text-primary);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-sm);
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: all var(--duration) var(--ease);
  cursor: pointer;
}

.service-card:hover {
  background: var(--surface-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

body[data-theme="light"] .service-card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--bg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  color: var(--accent);
}

body[data-theme="light"] .service-icon {
  background: #ffffff;
}

.service-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.service-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: auto;
  padding-bottom: var(--space-md);
}

.service-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
}

/* ==========================================================================
   About
   ========================================================================== */

.about {
  padding: var(--space-2xl) var(--space-md);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.stat {
  padding: var(--space-lg);
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  padding: var(--space-lg) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  border-top: 1px solid var(--border);
}

.footer p {
  font-size: 14px;
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  gap: var(--space-md);
}

.footer-links a {
  font-size: 14px;
  color: var(--text-tertiary);
  transition: color var(--duration) var(--ease);
}

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

@media (max-width: 480px) {
  .footer {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content {
  animation: fadeUp 0.8s var(--ease) forwards;
}

.section-header {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.section-header.visible {
  opacity: 1;
  transform: translateY(0);
}

.service-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.about-content {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.about-content.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
  .hero {
    min-height: 90vh;
    padding: var(--space-xl) var(--space-sm);
  }

  .hero-title {
    font-size: clamp(36px, 10vw, 52px);
  }

  .hero-subtitle {
    font-size: 17px;
  }

  .services,
  .about {
    padding: var(--space-xl) var(--space-sm);
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    padding: var(--space-md);
  }

  .about-stats {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .stat {
    padding: var(--space-md);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: var(--space-sm);
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-top: 1px solid var(--border);
    display: none;
  }

  body[data-theme="light"] .nav-links {
    background: rgba(255, 255, 255, 0.95);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
  }

  .nav-links a:hover {
    background: var(--surface);
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero-content,
  .section-header,
  .service-card,
  .about-content {
    opacity: 1;
    transform: none;
  }
}