/* ═══════════════════════════════════════════════════════════
   Smart Code — Landing Page Styles
   Dark-first "Midnight Bistro" design system
   ═══════════════════════════════════════════════════════════ */

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

:root {
  --bg-base: #0F0F14;
  --bg-surface: #1A1A24;
  --bg-elevated: #242430;
  --bg-overlay: #2E2E3C;
  --text-primary: #F0F0F5;
  --text-secondary: #9393A5;
  --text-hint: #5A5A6E;
  --border-subtle: #2A2A38;
  --border-focus: #6C63FF;
  --accent: #6C63FF;
  --accent-light: #8B83FF;
  --accent-surface: rgba(108, 99, 255, 0.08);
  --success: #34D399;
  --success-surface: rgba(52, 211, 153, 0.08);
  --warning: #FBBF24;
  --error: #F87171;
  --info: #60A5FA;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Navbar ─── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.3s;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo { display: flex; align-items: center; gap: 2px; font-size: 1.4rem; font-weight: 800; }
.logo-smart { color: var(--text-primary); }
.logo-code { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.lang-toggle {
  background: var(--bg-overlay);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: all 0.2s;
}

.lang-toggle:hover { border-color: var(--accent); color: var(--accent); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ─── Hero ─── */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero-content { position: relative; z-index: 2; text-align: center; max-width: 800px; margin: 0 auto; }

.hero-badge {
  display: inline-block;
  background: var(--accent-surface);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(108, 99, 255, 0.2);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, var(--success) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stat { text-align: center; }
.stat-value { font-size: 1.5rem; font-weight: 800; color: var(--text-primary); }
.stat-label { font-size: 0.8rem; color: var(--text-hint); margin-top: 4px; }

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(108, 99, 255, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-subtle);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-large { padding: 18px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; }

/* ─── Sections ─── */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-surface); }

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-badge {
  display: inline-block;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.section-badge.accent {
  background: var(--accent-surface);
  color: var(--accent);
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ─── Products Grid ─── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.product-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s;
  display: block;
}

.product-card.featured:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(108, 99, 255, 0.15);
}

.product-card.coming-soon { opacity: 0.6; }

.product-icon { font-size: 2.5rem; margin-bottom: 16px; }

.product-badge {
  display: inline-block;
  background: var(--success-surface);
  color: var(--success);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.product-badge.soon {
  background: rgba(251, 191, 36, 0.08);
  color: var(--warning);
}

.product-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-tags span {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
}

.product-arrow {
  position: absolute;
  top: 32px;
  right: 32px;
  font-size: 1.5rem;
  color: var(--accent);
  opacity: 0;
  transition: all 0.3s;
}

.product-card.featured:hover .product-arrow { opacity: 1; transform: translateX(4px); }

/* ─── Platform Grid ─── */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 64px;
}

.platform-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: border-color 0.2s;
}

.platform-card:hover { border-color: var(--accent); }
.platform-icon { font-size: 2rem; margin-bottom: 12px; }
.platform-card h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.platform-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.5; }

/* ─── Features Grid ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.feature {
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid transparent;
  transition: all 0.2s;
}

.feature:hover { border-color: var(--border-subtle); }
.feature-icon { font-size: 1.5rem; margin-bottom: 12px; }
.feature h5 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; }
.feature p { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.5; }

.cta-center { text-align: center; margin-top: 48px; }

/* ─── Steps ─── */
.steps-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 220px;
  max-width: 300px;
  text-align: center;
  padding: 32px 24px;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.step h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.5; }

.step-arrow {
  color: var(--accent);
  font-size: 1.5rem;
  padding-top: 48px;
  flex-shrink: 0;
}

/* ─── Pricing ─── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.price-card {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
}

.price-card.popular {
  border-color: var(--accent);
  box-shadow: 0 0 40px rgba(108, 99, 255, 0.12);
  transform: scale(1.02);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
}

.price-tier {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.price-amount {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.currency {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  vertical-align: super;
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-hint);
  margin-bottom: 24px;
}

.price-card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
}

.price-card li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(42, 42, 56, 0.5);
}

.price-card li::before {
  content: '✓ ';
  color: var(--success);
  font-weight: 700;
}

/* ─── Contact ─── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font);
  transition: border-color 0.2s;
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--text-hint);
}

.contact-form textarea {
  margin-bottom: 16px;
  resize: vertical;
  min-height: 100px;
}

.form-success {
  display: none;
  background: var(--success-surface);
  color: var(--success);
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-top: 16px;
  font-weight: 500;
  text-align: center;
}

.form-success.show { display: block; }

.contact-info { display: flex; flex-direction: column; gap: 24px; padding-top: 16px; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon { font-size: 1.5rem; }

.contact-item strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-hint);
  margin-bottom: 2px;
}

.contact-item a,
.contact-item span {
  color: var(--text-primary);
  font-size: 0.95rem;
}

.contact-item a:hover { color: var(--accent); }

/* ─── Footer ─── */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 64px 0 24px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 12px;
  max-width: 300px;
}

.footer-links { display: flex; gap: 64px; }

.footer-col h5 {
  color: var(--text-hint);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 8px;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  font-size: 0.8rem;
  color: var(--text-hint);
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
  }

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

  .hero { padding: 120px 0 60px; }
  .hero-stats { gap: 24px; }
  .stat-value { font-size: 1.2rem; }

  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }

  .platform-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr; }

  .step-arrow { display: none; }
  .steps-grid { flex-direction: column; align-items: center; }

  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
  .price-card.popular { transform: none; }

  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .footer-content { flex-direction: column; gap: 32px; }
  .footer-links { gap: 32px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .hero-sub { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .platform-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
}

/* ─── Animations ─── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-content { animation: fadeInUp 0.8s ease-out; }