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

:root {
  --bg: #0a0a0f;
  --surface: #111118;
  --surface2: #1a1a24;
  --border: #2a2a3a;
  --accent: #7c6af7;
  --accent2: #4ade80;
  --accent-gold: #f59e0b;
  --text: #e8e8f0;
  --muted: #8888aa;
  --danger: #f87171;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
}

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 5%;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-weight: 700; font-size: 1.1rem; letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 8px;
}
.nav-logo .pill {
  font-size: 0.65rem; background: var(--accent); color: white;
  padding: 2px 7px; border-radius: 20px; font-weight: 600;
  letter-spacing: 0.05em;
}
.nav-cta {
  background: var(--accent); color: white;
  border: none; padding: 9px 20px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  text-decoration: none; transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.85; }
.lang-switch { display:flex; align-items:center; gap:6px; font-size:0.8rem; letter-spacing:0.05em; }
.lang-active { color:var(--text); font-weight:700; }
.lang-sep { color:var(--muted); }
.lang-link { color:var(--muted); text-decoration:none; transition:color 0.2s; }
.lang-link:hover { color:var(--text); }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 120px 5% 80px;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse at center, rgba(124,106,247,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); border-radius: 20px;
  padding: 5px 14px; font-size: 0.82rem; color: var(--muted);
  margin-bottom: 28px;
  background: rgba(124,106,247,0.06);
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent2); flex-shrink: 0;
  box-shadow: 0 0 8px var(--accent2);
}
h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800; line-height: 1.12; letter-spacing: -0.03em;
  max-width: 800px; margin-bottom: 24px;
}
h1 span { color: var(--accent); }
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem); color: var(--muted);
  max-width: 560px; margin-bottom: 12px; line-height: 1.7;
}
.hero-differentiator {
  font-size: 1rem; color: var(--muted);
  letter-spacing: 0.04em; margin: 4px 0 16px;
}
.hero-compat {
  font-size: 0.85rem; color: var(--muted);
  margin-bottom: 32px;
}
.hero-actions {
  display: flex; gap: 14px; flex-wrap: wrap; justify-content: center;
  margin-bottom: 56px;
}
.btn-primary {
  background: var(--accent); color: white;
  border: none; padding: 14px 28px; border-radius: 10px;
  font-size: 1rem; font-weight: 700; cursor: pointer;
  text-decoration: none; transition: all 0.2s;
  box-shadow: 0 4px 24px rgba(124,106,247,0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 32px rgba(124,106,247,0.45); }
.btn-secondary {
  background: transparent; color: var(--text);
  border: 1px solid var(--border); padding: 14px 28px; border-radius: 10px;
  font-size: 1rem; font-weight: 600; cursor: pointer;
  text-decoration: none; transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* Social proof strip */
.hero-proof {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap; justify-content: center;
}
.proof-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.88rem; color: var(--muted);
}
.proof-item svg { color: var(--accent2); flex-shrink: 0; }
.proof-sep { width: 1px; height: 20px; background: var(--border); }

/* DEMO MOCKUP */
.demo-section {
  padding: 80px 5%; display: flex; justify-content: center;
}
.chat-mockup {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); max-width: 680px; width: 100%;
  overflow: hidden; box-shadow: 0 20px 80px rgba(0,0,0,0.5);
}
.chat-header {
  background: var(--surface2); border-bottom: 1px solid var(--border);
  padding: 14px 20px; display: flex; align-items: center; gap: 10px;
}
.chat-header-dot { width: 10px; height: 10px; border-radius: 50%; }
.chat-header-title { font-size: 0.88rem; color: var(--muted); font-weight: 500; margin-left: 4px; }
.chat-messages { padding: 24px 20px; display: flex; flex-direction: column; gap: 16px; }
.msg {
  display: flex; gap: 12px; align-items: flex-start;
}
.msg.user { flex-direction: row-reverse; }
.msg-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700; flex-shrink: 0;
}
.msg.user .msg-avatar { background: var(--accent); color: white; }
.msg.ai .msg-avatar { background: #1e1e2e; border: 1px solid var(--border); color: var(--accent); font-size: 0.7rem; }
.msg-bubble {
  background: var(--surface2); border-radius: 10px; padding: 12px 16px;
  font-size: 0.92rem; line-height: 1.6; max-width: 85%;
  border: 1px solid var(--border);
}
.msg.user .msg-bubble { background: rgba(124,106,247,0.12); border-color: rgba(124,106,247,0.25); }
.msg-bubble strong { color: var(--accent2); }
.msg-bubble .warn { color: var(--danger); font-weight: 600; }
.msg-bubble .ok { color: var(--accent2); font-weight: 600; }
.msg-bubble ul { padding-left: 18px; margin-top: 6px; }
.msg-bubble li { margin-bottom: 4px; }

/* FEATURES */
.features {
  padding: 80px 5%;
}
.section-label {
  text-align: center; font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent);
  margin-bottom: 14px;
}
.section-title {
  text-align: center; font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800; letter-spacing: -0.03em; margin-bottom: 14px;
}
.section-sub {
  text-align: center; color: var(--muted); font-size: 1rem;
  max-width: 540px; margin: 0 auto 56px;
}
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; max-width: 1000px; margin: 0 auto;
}
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.feature-icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: rgba(124,106,247,0.12); border: 1px solid rgba(124,106,247,0.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 16px;
}
.feature-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.6; }

/* HOW IT WORKS */
.how {
  padding: 80px 5%;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.steps {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px; max-width: 900px; margin: 0 auto;
  position: relative;
}
.step { text-align: center; }
.step-num {
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(124,106,247,0.15); border: 1px solid rgba(124,106,247,0.4);
  color: var(--accent); font-weight: 800; font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 0.88rem; color: var(--muted); }

/* CHANNELS */
.channels {
  padding: 80px 5%;
}
.channels-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px; max-width: 900px; margin: 0 auto;
}
.channel-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  display: flex; flex-direction: column; gap: 12px;
}
.channel-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 4px 10px; border-radius: 6px;
  width: fit-content;
}
.channel-badge.claude { background: rgba(124,106,247,0.15); color: var(--accent); }
.channel-badge.chatgpt { background: rgba(74,222,128,0.12); color: var(--accent2); }
.channel-card h3 { font-size: 1.05rem; font-weight: 700; }
.channel-card p { font-size: 0.9rem; color: var(--muted); }
.channel-card code {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px 14px; font-size: 0.85rem;
  font-family: 'SF Mono', 'Monaco', monospace; color: var(--accent);
}

/* STATS */
.stats {
  padding: 60px 5%;
  background: linear-gradient(135deg, rgba(124,106,247,0.06) 0%, transparent 60%);
  border-top: 1px solid var(--border);
}
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px; max-width: 700px; margin: 0 auto; text-align: center;
}
.stat-num {
  font-size: 2.4rem; font-weight: 800; letter-spacing: -0.03em;
  color: var(--text); line-height: 1;
}
.stat-num span { color: var(--accent); }
.stat-label { font-size: 0.85rem; color: var(--muted); margin-top: 6px; }

/* PRICING */
.pricing { padding: 80px 5%; }
.pricing-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px; max-width: 900px; margin: 0 auto;
}
.pricing-card.founding {
  border-color: var(--accent-gold);
  background: linear-gradient(135deg, rgba(245,158,11,0.07) 0%, var(--surface) 60%);
  position: relative;
}
.pricing-card.founding .featured-badge {
  background: var(--accent-gold); color: #0a0a0f;
}
.pricing-card.founding .pricing-price { color: var(--accent-gold); }
.btn-full.founding-btn {
  background: var(--accent-gold); color: #0a0a0f; font-weight: 800;
  box-shadow: 0 4px 20px rgba(245,158,11,0.35);
}
.btn-full.founding-btn:hover { opacity: 0.88; }
.founding-counter {
  font-size: 0.78rem; color: var(--muted); text-align: center;
  margin-top: 10px;
}
.founding-counter strong { color: var(--accent-gold); }
.pricing-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
}
.pricing-card.featured {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(124,106,247,0.08) 0%, var(--surface) 60%);
  position: relative;
}
.featured-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: white;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 4px 14px; border-radius: 20px;
}
.pricing-tier { font-size: 0.8rem; font-weight: 700; color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 8px; }
.pricing-price { font-size: 2.4rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 4px; }
.pricing-price sub { font-size: 0.9rem; font-weight: 500; color: var(--muted); }
.pricing-desc { font-size: 0.88rem; color: var(--muted); margin-bottom: 24px; }
.pricing-features { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.pricing-features li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 0.9rem; line-height: 1.5;
}
.pricing-features li .check { color: var(--accent2); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.btn-full {
  display: block; width: 100%; text-align: center;
  padding: 13px; border-radius: 9px; font-size: 0.95rem; font-weight: 700;
  text-decoration: none; cursor: pointer; transition: all 0.2s; border: none;
}
.btn-full.accent { background: var(--accent); color: white; box-shadow: 0 4px 20px rgba(124,106,247,0.3); }
.btn-full.accent:hover { opacity: 0.88; }
.btn-full.outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-full.outline:hover { border-color: var(--accent); color: var(--accent); }

/* DISCLAIMER */
.disclaimer-bar {
  background: rgba(248,113,113,0.06); border: 1px solid rgba(248,113,113,0.2);
  border-radius: 8px; padding: 12px 20px;
  font-size: 0.82rem; color: var(--muted);
  max-width: 700px; margin: 0 auto 80px; text-align: center;
}
.disclaimer-bar strong { color: var(--danger); }

/* CTA SECTION */
.cta-section {
  padding: 80px 5%;
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.cta-section h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800; letter-spacing: -0.03em; margin-bottom: 14px;
}
.cta-section p { color: var(--muted); margin-bottom: 36px; font-size: 1rem; }
.signup-form {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  max-width: 480px; margin: 0 auto;
}
.signup-form input {
  flex: 1 1 240px; padding: 13px 16px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 9px; color: var(--text); font-size: 0.95rem;
  outline: none; transition: border-color 0.2s;
}
.signup-form input:focus { border-color: var(--accent); }
.signup-form input::placeholder { color: var(--muted); }
.signup-form button {
  background: var(--accent); color: white; border: none;
  padding: 13px 24px; border-radius: 9px; font-size: 0.95rem;
  font-weight: 700; cursor: pointer; transition: opacity 0.2s;
  white-space: nowrap;
}
.signup-form button:hover { opacity: 0.88; }
.form-note { font-size: 0.78rem; color: var(--muted); margin-top: 12px; }

/* FOOTER */
footer {
  padding: 40px 5%;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-logo { font-weight: 700; font-size: 0.95rem; color: var(--muted); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.85rem; color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--text); }
.footer-note { font-size: 0.8rem; color: var(--muted); }

/* SUCCESS */
.success-msg {
  display: none; color: var(--accent2); font-size: 0.9rem;
  margin-top: 14px; font-weight: 600;
}
.success-msg.show { display: block; }

@media (max-width: 600px) {
  nav { padding: 12px 4%; }
  .hero { padding: 100px 4% 60px; }
  .features, .how, .channels, .pricing, .cta-section { padding: 60px 4%; }
}