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

:root {
  --bg:          #0a0a0f;
  --bg-card:     #12121a;
  --bg-card-hover: #1a1a26;
  --surface:     #16161f;
  --border:      rgba(255,255,255,.06);
  --border-hover:rgba(255,255,255,.12);
  --text:        #e4e4ed;
  --text-muted:  #7a7a8e;
  --white:       #ffffff;
  --accent:      #6c8aff;
  --accent-glow: rgba(108,138,255,.15);
  --purple:      #a78bfa;
  --gradient:    linear-gradient(135deg, #6c8aff 0%, #a78bfa 100%);
  --radius:      14px;
  --radius-sm:   8px;
  --font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:        'JetBrains Mono', 'Fira Code', 'SF Mono', monospace;
}

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

/* ── Utilities ────────────────────────────────────────────────── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section   { padding: 100px 0; position: relative; }
.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Typography ───────────────────────────────────────────────── */
h1 { font-size: clamp(2.5rem, 6vw, 4.2rem); font-weight: 700; line-height: 1.1; letter-spacing: -.02em; color: var(--white); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; line-height: 1.15; letter-spacing: -.015em; color: var(--white); }
h3 { font-size: 1.25rem; font-weight: 600; color: var(--white); }
p  { color: var(--text-muted); }
.lead { font-size: 1.15rem; line-height: 1.7; max-width: 600px; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: 10px;
  font-size: .95rem; font-weight: 600;
  transition: all .2s ease;
}
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn-primary:hover { background: #5a7bff; box-shadow: 0 0 30px rgba(108,138,255,.25); transform: translateY(-1px); }
.btn-secondary {
  border: 1px solid var(--border-hover); color: var(--text);
  background: rgba(255,255,255,.03);
}
.btn-secondary:hover { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.2); }

/* ── Navbar ───────────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 24px; height: 64px;
  display: flex; align-items: center;
  background: rgba(10,10,15,.8);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; color: var(--white); }
.navbar-brand svg { width: 28px; height: 28px; color: var(--accent); }
.navbar-logo { width: 32px; height: 32px; max-width: 32px; max-height: 32px; min-width: 32px; border-radius: 6px; object-fit: contain; display: inline-block; flex-shrink: 0; }
.navbar-links { display: flex; align-items: center; gap: 32px; }
.navbar-links a { font-size: .9rem; color: var(--text-muted); transition: color .2s; }
.navbar-links a:hover, .navbar-links a.active { color: var(--white); }
.navbar-actions { display: flex; align-items: center; gap: 16px; }
.navbar-actions .btn { padding: 9px 20px; font-size: .85rem; }
.mobile-toggle { display: none; padding: 8px; color: var(--text-muted); }
.mobile-toggle svg { width: 24px; height: 24px; }

.mobile-menu {
  display: none; position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
  background: rgba(10,10,15,.97); backdrop-filter: blur(20px);
  padding: 24px; z-index: 99; flex-direction: column; gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 14px 16px; border-radius: var(--radius-sm);
  font-size: 1rem; color: var(--text-muted); transition: all .2s;
}
.mobile-menu a:hover { background: rgba(255,255,255,.05); color: var(--white); }
.mobile-menu .btn { margin-top: 8px; justify-content: center; }

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  padding: 160px 0 100px; text-align: center; position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse, rgba(108,138,255,.12) 0%, rgba(167,139,250,.06) 40%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; border-radius: 100px;
  background: var(--accent-glow); border: 1px solid rgba(108,138,255,.2);
  font-size: .82rem; color: var(--accent); font-weight: 500;
  margin-bottom: 32px;
}
.hero h1 { margin-bottom: 24px; }
.hero .lead { margin: 0 auto 40px; }
.hero-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-sub { margin-top: 32px; font-size: .85rem; color: var(--text-muted); }
.hero-sub span { margin: 0 10px; opacity: .4; }

/* ── Languages Bar ────────────────────────────────────────────── */
.languages {
  padding: 48px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.01);
}
.languages-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .15em; color: var(--text-muted); margin-bottom: 24px; }
.languages-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; }
.lang-item { display: flex; align-items: center; gap: 8px; font-size: .88rem; color: var(--text-muted); }
.lang-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* ── Features Grid ────────────────────────────────────────────── */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 60px;
}
.feature-card {
  padding: 36px 32px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-card);
  transition: all .3s ease;
}
.feature-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); transform: translateY(-2px); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: var(--accent-glow); color: var(--accent); margin-bottom: 20px;
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { font-size: .9rem; line-height: 1.6; }

/* ── Editor Demo ──────────────────────────────────────────────── */
.demo-window {
  margin-top: 60px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); background: var(--surface);
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
}
.demo-titlebar {
  display: flex; align-items: center; gap: 8px; padding: 14px 18px;
  border-bottom: 1px solid var(--border); background: var(--bg-card);
}
.demo-dot { width: 12px; height: 12px; border-radius: 50%; }
.demo-dot.r { background: #ff5f57; } .demo-dot.y { background: #febc2e; } .demo-dot.g { background: #28c840; }
.demo-title { margin-left: 12px; font-size: .78rem; color: var(--text-muted); }
.demo-body { display: grid; grid-template-columns: 1fr 320px; min-height: 360px; }
.demo-editor { padding: 24px; border-right: 1px solid var(--border); }
.demo-tab { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 6px; background: rgba(255,255,255,.05); font-size: .78rem; color: var(--white); margin-bottom: 20px; }
.demo-code { font-family: var(--mono); font-size: .82rem; line-height: 1.9; }
.demo-code .ln { color: var(--text-muted); user-select: none; margin-right: 20px; opacity: .4; }
.demo-code .kw { color: #c792ea; } .demo-code .fn { color: #82aaff; } .demo-code .str { color: #c3e88d; }
.demo-code .num { color: #f78c6c; } .demo-code .cm { color: var(--text-muted); }

.demo-chat { padding: 20px; display: flex; flex-direction: column; }
.demo-chat-header { display: flex; align-items: center; gap: 8px; font-size: .85rem; font-weight: 600; color: var(--white); margin-bottom: 16px; }
.demo-chat-header svg { width: 18px; height: 18px; color: var(--accent); }
.demo-msg { padding: 12px 16px; border-radius: 12px; font-size: .8rem; line-height: 1.5; margin-bottom: 10px; }
.demo-msg.user { align-self: flex-end; background: rgba(108,138,255,.12); color: var(--text); border-bottom-right-radius: 4px; }
.demo-msg.ai { align-self: flex-start; background: rgba(255,255,255,.04); border: 1px solid var(--border); color: var(--text-muted); border-bottom-left-radius: 4px; }
.demo-msg code { background: rgba(255,255,255,.06); padding: 2px 6px; border-radius: 4px; color: var(--accent); font-family: var(--mono); font-size: .75rem; }
.demo-msg .tag { display: block; margin-top: 8px; font-size: .7rem; color: var(--accent); }
.demo-input { margin-top: auto; padding: 12px 16px; border-radius: 10px; border: 1px solid var(--border); background: rgba(255,255,255,.02); font-size: .8rem; color: var(--text-muted); }

/* ── Pricing ──────────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 60px; }
.price-card {
  padding: 40px 32px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-card);
  display: flex; flex-direction: column; transition: all .3s ease;
}
.price-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.price-card.popular {
  border-color: rgba(108,138,255,.3);
  background: linear-gradient(180deg, rgba(108,138,255,.04) 0%, var(--bg-card) 100%);
  position: relative;
}
.popular-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  padding: 5px 16px; border-radius: 100px; background: var(--accent);
  font-size: .75rem; font-weight: 600; color: #fff;
}
.price-card h3 { margin-bottom: 6px; }
.price-card .desc { font-size: .88rem; margin-bottom: 24px; }
.price-amount { margin-bottom: 32px; }
.price-amount .amount { font-size: 2.8rem; font-weight: 700; color: var(--white); }
.price-amount .period { font-size: .88rem; color: var(--text-muted); margin-left: 4px; }
.price-features { list-style: none; flex: 1; margin-bottom: 32px; }
.price-features li { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; font-size: .88rem; color: var(--text-muted); }
.price-features li svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.price-card .btn { width: 100%; justify-content: center; }

/* ── Contact ──────────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 360px; gap: 40px; margin-top: 60px; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group label { display: block; font-size: .85rem; font-weight: 500; color: var(--text); margin-bottom: 8px; }
.form-group input, .form-group textarea {
  width: 100%; padding: 13px 16px; border-radius: 10px;
  border: 1px solid var(--border); background: rgba(255,255,255,.03);
  color: var(--white); font-family: var(--font); font-size: .9rem;
  transition: all .2s; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: rgba(108,138,255,.4); box-shadow: 0 0 0 3px rgba(108,138,255,.08); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-muted); opacity: .6; }
.form-group textarea { resize: none; min-height: 140px; }

.contact-info { display: flex; flex-direction: column; gap: 20px; }
.info-card {
  padding: 28px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-card);
}
.info-item { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.info-item:last-child { margin-bottom: 0; }
.info-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; background: var(--accent-glow); color: var(--accent); flex-shrink: 0; }
.info-icon svg { width: 18px; height: 18px; }
.info-item strong { display: block; font-size: .9rem; color: var(--white); margin-bottom: 2px; }
.info-item span, .info-item a { font-size: .85rem; color: var(--text-muted); }
.info-item a:hover { color: var(--accent); }

.enterprise-card {
  padding: 28px; border-radius: var(--radius);
  border: 1px solid rgba(108,138,255,.15); background: rgba(108,138,255,.03);
}
.enterprise-card h3 { margin-bottom: 8px; }
.enterprise-card p { font-size: .88rem; line-height: 1.6; }

.form-status {
  padding: 16px 20px; border-radius: 10px; font-size: .9rem; display: none;
}
.form-status.success { display: block; background: rgba(52,211,153,.08); border: 1px solid rgba(52,211,153,.2); color: #34d399; }
.form-status.error { display: block; background: rgba(248,113,113,.08); border: 1px solid rgba(248,113,113,.2); color: #f87171; }

/* ── CTA ──────────────────────────────────────────────────────── */
.cta {
  text-align: center; position: relative; overflow: hidden;
}
.cta::before {
  content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 700px; height: 400px;
  background: radial-gradient(ellipse, rgba(108,138,255,.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta h2 { margin-bottom: 16px; }
.cta .lead { margin: 0 auto 36px; }
.cta-buttons { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ───────────────────────────────────────────────────── */
.footer {
  padding: 64px 0 32px; border-top: 1px solid var(--border); background: var(--surface);
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand p { margin-top: 16px; font-size: .88rem; line-height: 1.6; max-width: 280px; }
.footer-col h4 { font-size: .85rem; font-weight: 600; color: var(--white); margin-bottom: 16px; }
.footer-col a { display: block; padding: 4px 0; font-size: .88rem; 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: 24px; border-top: 1px solid var(--border); font-size: .8rem; color: var(--text-muted);
}
.footer-social { display: flex; gap: 16px; }
.footer-social a { color: var(--text-muted); transition: color .2s; }
.footer-social a:hover { color: var(--white); }
.footer-social svg { width: 20px; height: 20px; }

/* ── Animations ───────────────────────────────────────────────── */
.fade-in {
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 900px) {
  .features-grid, .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }
  .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: 32px; }
}
@media (max-width: 768px) {
  .navbar-links, .navbar-actions { display: none; }
  .mobile-toggle { display: block; }
  .section { padding: 72px 0; }
  .hero { padding: 120px 0 72px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 16px; }
}
@media (min-width: 769px) {
  .mobile-menu { display: none !important; }
}