/* MySQL Studio — Marketing Website Design System
 * Theme: Studio Amber (#F59E0B) on Deep Slate Carbon (#0B0F19 / #0F172A)
 * Supports Light & Dark themes with clean modern aesthetics
 */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* Dark Theme (Default) */
  --bg-primary: #07090E;
  --bg-secondary: #0D1117;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(30, 41, 59, 0.8);
  --bg-glass: rgba(15, 23, 42, 0.75);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(245, 158, 11, 0.5);
  --border-glow: rgba(245, 158, 11, 0.2);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-accent: #FBBF24;

  --amber-50: #FFFBEB;
  --amber-100: #FEF3C7;
  --amber-400: #FBBF24;
  --amber-500: #F59E0B;
  --amber-600: #D97706;
  --amber-glow: rgba(245, 158, 11, 0.25);

  --emerald-400: #34D399;
  --emerald-500: #10B981;
  --emerald-bg: rgba(16, 185, 129, 0.1);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px -5px rgba(245, 158, 11, 0.3);
  --shadow-glow-lg: 0 0 60px -10px rgba(245, 158, 11, 0.2);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.85);
  
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(217, 119, 6, 0.6);
  --border-glow: rgba(245, 158, 11, 0.3);

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;
  --text-accent: #D97706;

  --amber-glow: rgba(245, 158, 11, 0.15);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 30px -5px rgba(217, 119, 6, 0.15);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  line-height: 1.25;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

code, pre {
  font-family: var(--font-mono);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 0;
  transition: var(--transition);
}

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

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--amber-400), var(--amber-600));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B0F19;
  font-weight: 900;
  box-shadow: 0 0 15px var(--amber-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(180deg, var(--amber-400), var(--amber-500));
  color: #07090E;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1), 0 0 20px var(--amber-glow);
}

.btn-primary:hover {
  background: linear-gradient(180deg, var(--amber-500), var(--amber-600));
  box-shadow: 0 0 30px var(--amber-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.85rem 1.85rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-focus);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(245, 158, 11, 0.12);
  color: var(--amber-400);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-emerald {
  background: var(--emerald-bg);
  color: var(--emerald-400);
  border-color: rgba(16, 185, 129, 0.3);
}

/* Hero Section */
.hero {
  padding: 5rem 0 3.5rem;
  text-align: center;
  position: relative;
}

.hero-glow {
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 350px;
  background: radial-gradient(circle, var(--amber-glow) 0%, rgba(0,0,0,0) 70%);
  z-index: -1;
  pointer-events: none;
  filter: blur(50px);
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
}

.hero-title {
  margin: 1.25rem 0 1.5rem;
  line-height: 1.15;
}

.hero-title span {
  background: linear-gradient(135deg, var(--amber-400), #FCD34D, var(--amber-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.25rem;
  line-height: 1.6;
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* App Mockup / Preview */
.app-preview-wrapper {
  margin: 3.5rem auto 0;
  max-width: 1080px;
  border-radius: var(--radius-lg);
  padding: 8px;
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.25), rgba(255,255,255,0.03));
  box-shadow: var(--shadow-glow-lg), 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.app-preview-card {
  background: var(--bg-secondary);
  border-radius: calc(var(--radius-lg) - 6px);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}

.app-preview-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border-subtle);
}

.window-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red { background: #EF4444; }
.dot-yellow { background: #F59E0B; }
.dot-green { background: #10B981; }

.app-mockup-body {
  padding: 2rem;
  background: #0B0F19;
  color: #E2E8F0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-align: left;
  overflow-x: auto;
}

/* Features Grid */
.section {
  padding: 6rem 0;
  border-top: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem;
}

.section-title {
  margin-top: 0.75rem;
  margin-bottom: 1rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.feature-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(245, 158, 11, 0.12);
  color: var(--amber-400);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  font-size: 1.35rem;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Performance Comparison Table */
.perf-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 2rem;
}

.perf-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.perf-table th, .perf-table td {
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.perf-table th {
  background: rgba(0, 0, 0, 0.2);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.perf-table td {
  font-size: 0.95rem;
}

.perf-table tr:last-child td {
  border-bottom: none;
}

/* Pricing Cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card.featured {
  border-color: var(--amber-500);
  box-shadow: var(--shadow-glow);
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.06), rgba(17, 24, 39, 0.8));
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 1.25rem 0;
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.pricing-features {
  list-style: none;
  margin: 1.5rem 0 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.pricing-features li svg {
  color: var(--amber-400);
  flex-shrink: 0;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.footer-link:hover {
  color: var(--amber-400);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .hero-meta { flex-direction: column; gap: 0.5rem; }
  .pricing-grid { grid-template-columns: 1fr; }
}