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

:root {
  --grad-start: #ef4444;
  --grad-end:   #8b5cf6;
  --dark:       #0a0a0f;
  --dark-2:     #111118;
  --dark-3:     #1a1a24;
  --border:     rgba(255,255,255,0.08);
  --text:       #e2e8f0;
  --text-muted: #94a3b8;
  --radius:     16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.6;
}

.gradient-text {
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.container { max-width: 900px; margin: 0 auto; padding: 0 24px; }

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand-logo { width: 32px; height: 32px; border-radius: 8px; }
.brand-name {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-contact {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color .2s;
}
.nav-contact:hover { color: var(--text); }

/* HERO */
.hero {
  padding: 100px 24px 80px;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(139,92,246,0.12) 0%, transparent 70%);
}
.hero-inner { max-width: 640px; margin: 0 auto; }
.hero-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #fff;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* PRODUCTS */
.products { padding: 40px 0 80px; }
.section-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
  margin-bottom: 32px;
  text-align: center;
}

.card {
  display: flex;
  gap: 28px;
  background: var(--dark-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 20px;
  transition: border-color .2s, transform .2s;
}
.card:hover {
  border-color: rgba(139,92,246,0.3);
  transform: translateY(-2px);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.grammar-icon { background: linear-gradient(135deg, rgba(37,99,235,0.2), rgba(139,92,246,0.2)); border: 1px solid rgba(139,92,246,0.3); }
.seace-icon   { background: linear-gradient(135deg, rgba(239,68,68,0.2), rgba(249,115,22,0.2)); border: 1px solid rgba(249,115,22,0.3); }
.seller-icon  { background: linear-gradient(135deg, rgba(16,185,129,0.2), rgba(6,182,212,0.2)); border: 1px solid rgba(16,185,129,0.3); }

.card-body { flex: 1; }
.card-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }

.badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 20px;
}
.badge-live { background: rgba(22,163,74,0.15); color: #4ade80; border: 1px solid rgba(22,163,74,0.3); }
.badge-soon { background: rgba(139,92,246,0.15); color: #a78bfa; border: 1px solid rgba(139,92,246,0.3); }

.card-category { font-size: 12px; color: var(--text-muted); }

.card-body h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.card-body p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.65;
}

.card-features {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.card-features li {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--dark-3);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 20px;
}
.card-features li::before { content: "✓ "; color: #4ade80; }

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 9px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: opacity .2s, transform .15s;
}
.btn:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--grad-start), var(--grad-end));
  color: #fff;
  border: none;
}
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: rgba(139,92,246,0.5); }

/* ABOUT */
.about {
  background: var(--dark-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 24px;
}
.about-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}
.about h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.about p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 12px;
  max-width: 480px;
}
.about p:last-of-type { margin-bottom: 24px; }
.about-logo img {
  width: 120px;
  height: 120px;
  border-radius: 24px;
  flex-shrink: 0;
}

/* FOOTER */
footer {
  padding: 28px 24px;
  background: var(--dark);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-muted); text-decoration: none; transition: color .2s; }
.footer-links a:hover { color: var(--text); }

/* RESPONSIVE */
@media (max-width: 640px) {
  .card { flex-direction: column; gap: 16px; }
  .about-inner { flex-direction: column-reverse; text-align: center; }
  .about-logo { display: none; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
  .nav-contact { display: none; }
}