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

:root {
  --bg: #000000;
  --bg-subtle: #0a0a0a;
  --border: #1a1a1a;
  --text: #ededed;
  --text-muted: #666666;
  --white: #ffffff;
  --font: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ── Layout ───────────────────────────────────────────────────── */
.container { max-width: 800px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }

/* ── Navbar ───────────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 56px; display: flex; align-items: center;
  background: rgba(0,0,0,.9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1200px; }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-size: 1rem; font-weight: 600; color: var(--white); }
.navbar-logo { width: 24px; height: 24px; border-radius: 4px; }
.navbar-links { display: flex; gap: 32px; }
.navbar-links a { font-size: .8rem; color: var(--text-muted); transition: color .2s; }
.navbar-links a:hover, .navbar-links a.active { color: var(--white); }
.navbar-actions { display: flex; gap: 12px; }
.navbar-actions .btn { padding: 7px 16px; font-size: .8rem; }
.mobile-toggle { display: none; padding: 8px; color: var(--text-muted); }
.mobile-toggle svg { width: 20px; height: 20px; }

.mobile-menu {
  display: none; position: fixed; top: 56px; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,.98); padding: 24px; z-index: 99; flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 14px 16px; font-size: .85rem; color: var(--text-muted); border-radius: 4px; }
.mobile-menu a:hover { color: var(--white); background: var(--bg-subtle); }
.mobile-menu .btn { margin-top: 8px; justify-content: center; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; border-radius: 6px;
  font-size: .85rem; font-weight: 500; font-family: var(--font);
  transition: all .15s ease;
}
.btn-primary { background: var(--white); color: #000; }
.btn-primary:hover { background: #e0e0e0; }
.btn-secondary { border: 1px solid #333; color: var(--text-muted); }
.btn-secondary:hover { border-color: #555; color: var(--white); }

/* ── Hero ─────────────────────────────────────────────────────── */
.hero { padding: 140px 0 80px; }
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 600; line-height: 1.2;
  color: var(--white); letter-spacing: -.02em;
  margin-bottom: 24px;
}
.hero .lead {
  font-size: .95rem; color: var(--text-muted);
  max-width: 560px; line-height: 1.8; margin-bottom: 40px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 4px; margin-bottom: 24px;
  background: var(--bg-subtle); border: 1px solid var(--border);
  font-size: .75rem; color: var(--text-muted);
}
.hero-badge svg { display: none; }
.hero-buttons { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-sub { margin-top: 24px; font-size: .75rem; color: var(--text-muted); }
.hero-sub span { margin: 0 8px; opacity: .3; }
.text-gradient { color: var(--white); -webkit-text-fill-color: var(--white); background: none; }

/* ── Languages ───────────────────────────────────────────────── */
.languages { padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.languages .container { max-width: 1200px; }
.languages-label { font-size: .65rem; text-transform: uppercase; letter-spacing: .2em; color: var(--text-muted); margin-bottom: 20px; text-align: center; }
.languages-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; }
.lang-item { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--text-muted); }
.lang-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-muted) !important; }

/* ── Features ────────────────────────────────────────────────── */
.section h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 600; color: var(--white);
  margin-bottom: 16px; letter-spacing: -.01em;
}
.section .lead, .section > .container > .text-center > .lead {
  font-size: .9rem; color: var(--text-muted); max-width: 500px; margin: 0 auto;
}
.text-center { text-align: center; }
.features-grid { display: grid; grid-template-columns: 1fr; gap: 0; margin-top: 48px; }
.feature-card {
  padding: 24px 0; border-bottom: 1px solid var(--border);
  display: flex; align-items: flex-start; gap: 20px;
}
.feature-card:last-child { border-bottom: none; }
.feature-icon { display: none; }
.feature-card h3 { font-size: .9rem; font-weight: 600; color: var(--white); margin-bottom: 6px; }
.feature-card h3::before { content: '[*] '; color: var(--text-muted); font-weight: 400; }
.feature-card p { font-size: .8rem; color: var(--text-muted); line-height: 1.7; }

/* ── Demo ─────────────────────────────────────────────────────── */
.demo-window {
  margin-top: 48px; border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border); background: var(--bg-subtle);
}
.demo-titlebar {
  display: flex; align-items: center; gap: 6px; padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.demo-dot { width: 10px; height: 10px; border-radius: 50%; }
.demo-dot.r { background: #555; } .demo-dot.y { background: #555; } .demo-dot.g { background: #555; }
.demo-title { margin-left: 10px; font-size: .7rem; color: var(--text-muted); }
.demo-body { display: grid; grid-template-columns: 1fr 280px; min-height: 300px; }
.demo-editor { padding: 20px; border-right: 1px solid var(--border); }
.demo-tab { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 4px; background: rgba(255,255,255,.04); font-size: .7rem; color: var(--text-muted); margin-bottom: 16px; }
.demo-code { font-size: .75rem; line-height: 2; }
.demo-code .ln { color: #333; user-select: none; margin-right: 16px; }
.demo-code .kw { color: #888; } .demo-code .fn { color: #ccc; } .demo-code .str { color: #999; }
.demo-code .num { color: #aaa; } .demo-code .cm { color: #444; }
.demo-chat { padding: 16px; display: flex; flex-direction: column; }
.demo-chat-header { display: flex; align-items: center; gap: 6px; font-size: .75rem; font-weight: 600; color: var(--white); margin-bottom: 12px; }
.demo-chat-header svg { width: 14px; height: 14px; color: var(--text-muted); }
.demo-msg { padding: 10px 12px; border-radius: 6px; font-size: .75rem; line-height: 1.6; margin-bottom: 8px; }
.demo-msg.user { align-self: flex-end; background: rgba(255,255,255,.06); color: var(--text); }
.demo-msg.ai { align-self: flex-start; border: 1px solid var(--border); color: var(--text-muted); }
.demo-msg code { background: rgba(255,255,255,.06); padding: 1px 4px; border-radius: 3px; color: var(--white); font-size: .7rem; }
.demo-msg .tag { display: block; margin-top: 6px; font-size: .65rem; color: var(--text-muted); }
.demo-input { margin-top: auto; padding: 10px 12px; border-radius: 6px; border: 1px solid var(--border); font-size: .7rem; color: #444; }

/* ── Pricing ──────────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 48px; background: var(--border); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.price-card { padding: 32px 24px; background: var(--bg); display: flex; flex-direction: column; }
.price-card.popular { background: var(--bg-subtle); }
.popular-badge { display: inline-block; padding: 3px 10px; border-radius: 3px; background: var(--white); color: #000; font-size: .65rem; font-weight: 600; margin-bottom: 12px; width: fit-content; position: static; transform: none; left: auto; }
.price-card h3 { font-size: .9rem; margin-bottom: 4px; color: var(--white); }
.price-card .desc { font-size: .75rem; color: var(--text-muted); margin-bottom: 20px; }
.price-amount { margin-bottom: 24px; }
.price-amount .amount { font-size: 2rem; font-weight: 600; color: var(--white); }
.price-amount .period { font-size: .75rem; color: var(--text-muted); }
.price-features { list-style: none; flex: 1; margin-bottom: 24px; }
.price-features li { display: flex; align-items: flex-start; gap: 8px; padding: 4px 0; font-size: .75rem; color: var(--text-muted); }
.price-features li svg { width: 14px; height: 14px; color: var(--text-muted); flex-shrink: 0; margin-top: 2px; }
.price-card .btn { width: 100%; justify-content: center; }

/* ── Contact ──────────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 320px; gap: 40px; margin-top: 48px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group label { display: block; font-size: .75rem; color: var(--text-muted); margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 10px 12px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--bg-subtle);
  color: var(--white); font-family: var(--font); font-size: .8rem;
  transition: border-color .2s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: #444; }
.form-group input::placeholder, .form-group textarea::placeholder { color: #333; }
.form-group textarea { resize: none; min-height: 120px; }
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.info-card { padding: 20px; border-radius: 8px; border: 1px solid var(--border); }
.info-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.info-item:last-child { margin-bottom: 0; }
.info-icon { width: 32px; height: 32px; border-radius: 6px; display: flex; align-items: center; justify-content: center; background: var(--bg-subtle); border: 1px solid var(--border); color: var(--text-muted); flex-shrink: 0; }
.info-icon svg { width: 14px; height: 14px; }
.info-item strong { display: block; font-size: .8rem; color: var(--white); margin-bottom: 2px; }
.info-item span, .info-item a { font-size: .75rem; color: var(--text-muted); }
.info-item a:hover { color: var(--white); }
.enterprise-card { padding: 20px; border-radius: 8px; border: 1px solid var(--border); }
.enterprise-card h3 { font-size: .85rem; margin-bottom: 6px; }
.enterprise-card p { font-size: .75rem; color: var(--text-muted); }
.form-status { padding: 12px 16px; border-radius: 6px; font-size: .8rem; display: none; }
.form-status.success { display: block; background: rgba(255,255,255,.03); border: 1px solid #333; color: var(--text-muted); }
.form-status.error { display: block; background: rgba(255,255,255,.03); border: 1px solid #333; color: #888; }

/* ── CTA ──────────────────────────────────────────────────────── */
.cta { text-align: center; padding: 80px 0; }
.cta::before { display: none; }
.cta h2 { margin-bottom: 16px; }
.cta .lead { margin: 0 auto 32px; font-size: .9rem; color: var(--text-muted); max-width: 500px; }
.cta-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ───────────────────────────────────────────────────── */
.footer { padding: 48px 0 24px; border-top: 1px solid var(--border); }
.footer .container { max-width: 1200px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { margin-top: 12px; font-size: .75rem; color: var(--text-muted); max-width: 240px; line-height: 1.7; }
.footer-col h4 { font-size: .7rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em; margin-bottom: 12px; }
.footer-col a { display: block; padding: 3px 0; font-size: .8rem; color: var(--text-muted); transition: color .2s; }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 20px; border-top: 1px solid var(--border); font-size: .7rem; color: #444;
}
.footer-social { display: flex; gap: 16px; }
.footer-social a { color: #444; transition: color .2s; }
.footer-social a:hover { color: var(--white); }
.footer-social svg { width: 16px; height: 16px; }

/* ── Animations ──────────────────────────────────────────────── */
.fade-in { opacity: 0; transform: translateY(10px); transition: opacity .5s, transform .5s; }
.fade-in.visible { opacity: 1; transform: none; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .demo-body { grid-template-columns: 1fr; }
  .demo-editor { border-right: none; border-bottom: 1px solid var(--border); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 768px) {
  .navbar-links, .navbar-actions { display: none; }
  .mobile-toggle { display: block; }
  .section { padding: 60px 0; }
  .hero { padding: 100px 0 60px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-bottom { flex-direction: column; gap: 12px; }
}
@media (min-width: 769px) { .mobile-menu { display: none !important; } }