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

:root {
  --bg: #09090b;
  --bg-elevated: #111114;
  --bg-card: #131316;
  --bg-card-hover: #19191e;
  --border: #1e1e24;
  --border-hover: #2a2a32;
  --text: #eeeef0;
  --text-secondary: #a1a1aa;
  --text-muted: #63637a;
  --accent: #7c6dfc;
  --accent-dim: #5b4dd4;
  --accent-glow: rgba(124, 109, 252, 0.12);
  --accent-glow-strong: rgba(124, 109, 252, 0.25);
  --green: #34d399;
  --green-dim: rgba(52, 211, 153, 0.12);
  --radius: 14px;
  --radius-sm: 8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
a { color: inherit; text-decoration: none; }

/* === Nav === */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.logo span { color: var(--accent); }
.logo-sm { font-size: 1.1rem; }

.nav-links { display: flex; gap: 32px; }
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  font-size: 0.925rem;
  font-weight: 600;
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
  box-shadow: 0 0 30px var(--accent-glow-strong);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--bg-elevated);
}

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  padding: 140px 24px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2.6rem, 6.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  margin-bottom: 20px;
  background: linear-gradient(180deg, var(--text) 40%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  max-width: 580px;
  margin: 0 auto 40px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
}

.stat { text-align: center; }

.stat-num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* === Products === */
.products {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2.2rem;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

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

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
}

.product-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}

.product-card.featured {
  border-color: rgba(124, 109, 252, 0.3);
}
.product-card.featured:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 50px var(--accent-glow);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.card-icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
}

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

.card-badge {
  padding: 4px 12px;
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.card-badge.badge-free {
  background: var(--green-dim);
  color: var(--green);
}

.product-card h3 {
  font-size: 1.25rem;
  letter-spacing: -0.015em;
  margin-bottom: 6px;
}

.card-tagline {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 12px;
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.card-features {
  list-style: none;
  margin-bottom: 24px;
  flex-grow: 1;
}

.card-features li {
  padding: 5px 0;
  font-size: 0.84rem;
  color: var(--text-secondary);
  position: relative;
  padding-left: 20px;
}

.card-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.8rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.price {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.price span {
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.card-cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  transition: opacity 0.2s;
}
.card-cta:hover { opacity: 0.8; }

/* === About === */
.about {
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text h2 {
  font-size: 2.2rem;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.about-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-lead em {
  color: var(--accent);
  font-style: normal;
  font-weight: 600;
}

.about-text p:last-child {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.value {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.value-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1.2rem;
}

.value h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.value p {
  color: var(--text-muted);
  font-size: 0.87rem;
  line-height: 1.6;
}

/* === Contact === */
.contact {
  padding: 120px 0;
  text-align: center;
  border-top: 1px solid var(--border);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.contact h2 {
  font-size: 2.2rem;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
  position: relative;
}

.contact p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
  position: relative;
}

.contact .btn { position: relative; }

/* === Footer === */
.footer {
  padding: 28px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer p {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* === Responsive === */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 768px) {
  .product-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 20px; }
  .nav-links a { font-size: 0.82rem; }
  .hero { padding: 120px 24px 60px; min-height: auto; }
  .hero h1 { font-size: clamp(2rem, 8vw, 2.8rem); }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 1.3rem; }
  .products, .about, .contact { padding: 80px 0; }
  .section-header { margin-bottom: 40px; }
  .footer-inner { flex-direction: column; gap: 12px; }
  .contact h2 { font-size: 1.8rem; }
  .about-text h2 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .nav-links { gap: 16px; }
  .product-card { padding: 24px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-divider { width: 36px; height: 1px; }
}