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

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a26;
  --border: #1e1e2e;
  --text: #e4e4e7;
  --text-muted: #9a9aae;
  --primary: #6c5ce7;
  --primary-light: #8577ed;
  --accent: #00d9ff;
  --gradient: linear-gradient(135deg, #6c5ce7, #00d9ff);
  --success: #00c48c;
  --warning: #ffb800;
  --radius: 12px;
  --radius-sm: 8px;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }
.btn-primary { background: var(--gradient); color: #fff; }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1.5px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary-light); }
.btn-block { width: 100%; }

/* === Nav === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo { font-size: 1.4rem; font-weight: 800; }
.logo-hex { color: var(--primary-light); }
.logo-scan { color: var(--text); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.mobile-menu-btn span { display: block; width: 24px; height: 2px; background: var(--text); transition: 0.2s; }

/* === Hero === */
.hero {
  padding: 140px 0 100px;
  text-align: center;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid rgba(0, 217, 255, 0.2);
  background: rgba(0, 217, 255, 0.05);
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  max-width: 640px;
  margin: 0 auto 36px;
  color: var(--text-muted);
  font-size: 1.1rem;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 64px; }
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* === Section Header === */
.section-header { text-align: center; max-width: 600px; margin: 0 auto 56px; }
.section-header h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; }
.section-header p { color: var(--text-muted); font-size: 1.05rem; }

/* === Features === */
.features { padding: 100px 0; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all 0.3s;
}
.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(108, 92, 231, 0.3);
  transform: translateY(-2px);
}
.feature-icon { font-size: 1.6rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* === Critical Flow Monitoring === */
.critical-flows {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(108, 92, 231, 0.04), transparent);
}
.cf-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.cf-badge {
  color: var(--success) !important;
  border-color: rgba(0, 196, 140, 0.3) !important;
  background: rgba(0, 196, 140, 0.08) !important;
}
.cf-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 16px;
}
.cf-lead {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 32px;
  line-height: 1.7;
}
.cf-lead strong { color: var(--text); }
.cf-benefits { display: flex; flex-direction: column; gap: 24px; }
.cf-benefit {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.cf-benefit-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.cf-benefit h4 { font-size: 0.95rem; margin-bottom: 4px; }
.cf-benefit p { color: var(--text-muted); font-size: 0.85rem; line-height: 1.6; }

/* Flow visual card */
.cf-visual { display: flex; flex-direction: column; gap: 16px; }
.cf-flow-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.cf-flow-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.cf-flow-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.cf-flow-status {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
}
.cf-status-passing {
  color: var(--success);
  background: rgba(0, 196, 140, 0.1);
  border: 1px solid rgba(0, 196, 140, 0.2);
}
.cf-flow-steps { padding: 8px 0; }
.cf-step-item {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  font-size: 0.85rem;
  gap: 12px;
  transition: background 0.15s;
}
.cf-step-item:hover { background: rgba(255, 255, 255, 0.02); }
.cf-step-check {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
}
.cf-step-pass .cf-step-check {
  background: rgba(0, 196, 140, 0.15);
  color: var(--success);
}
.cf-step-name { flex: 1; color: var(--text); }
.cf-step-time { color: var(--text-muted); font-size: 0.75rem; font-family: 'SF Mono', 'Fira Code', monospace; }
.cf-flow-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.cf-flow-total { font-weight: 600; color: var(--text); }

/* Sleep card */
.cf-sleep-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: rgba(108, 92, 231, 0.06);
  border: 1px solid rgba(108, 92, 231, 0.15);
  border-radius: var(--radius);
}
.cf-sleep-icon { font-size: 1.8rem; flex-shrink: 0; }
.cf-sleep-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.cf-sleep-card strong { color: var(--text); }

@media (max-width: 900px) {
  .cf-content { grid-template-columns: 1fr; }
}

/* === Beta Features === */
.beta-features {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent, rgba(108, 92, 231, 0.03), transparent);
}
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--warning);
  border: 1px solid rgba(255, 184, 0, 0.3);
  background: rgba(255, 184, 0, 0.08);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.beta-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.beta-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.beta-card::before {
  content: 'BETA';
  position: absolute;
  top: 12px;
  right: -20px;
  background: var(--warning);
  color: #000;
  font-size: 0.6rem;
  font-weight: 800;
  padding: 2px 28px;
  transform: rotate(45deg);
  letter-spacing: 0.1em;
}
.beta-card h3 { font-size: 1rem; margin-bottom: 8px; }
.beta-card p { color: var(--text-muted); font-size: 0.85rem; }

/* === Open Source Section === */
.open-source {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(0, 217, 255, 0.02), transparent);
}
.oss-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.oss-badge {
  color: var(--accent) !important;
  border-color: rgba(0, 217, 255, 0.3) !important;
  background: rgba(0, 217, 255, 0.08) !important;
}
.oss-text h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 16px; }
.oss-text > p { color: var(--text-muted); font-size: 1rem; margin-bottom: 24px; }
.oss-features { list-style: none; margin-bottom: 28px; }
.oss-features li {
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.oss-features li::before { content: '\2713  '; color: var(--success); font-weight: 700; }
.oss-actions { display: flex; gap: 12px; }
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #1a1a26;
  border-radius: var(--radius) var(--radius) 0 0;
  border: 1px solid var(--border);
  border-bottom: none;
}
.terminal-dot { width: 12px; height: 12px; border-radius: 50%; }
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #28c840; }
.terminal-title { color: var(--text-muted); font-size: 0.75rem; margin-left: auto; margin-right: auto; }
.terminal-body {
  background: #0d0d14;
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 24px;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  overflow-x: auto;
}
.t-comment { color: #555; }
.t-prompt { color: var(--accent); }
.t-output { color: var(--success); }

/* === How It Works === */
.how-it-works { padding: 100px 0; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step { text-align: center; padding: 32px; }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 20px;
}
.step h3 { margin-bottom: 8px; font-size: 1.15rem; }
.step p { color: var(--text-muted); font-size: 0.9rem; }

/* === Pricing === */
.pricing {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(108, 92, 231, 0.03), transparent);
}
.community-banner {
  margin-bottom: 36px;
}
.community-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 217, 255, 0.04);
  border: 1px solid rgba(0, 217, 255, 0.15);
  border-radius: var(--radius);
  padding: 24px 32px;
}
.pricing-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 32px;
  font-style: italic;
}
.community-banner h3 { font-size: 1.1rem; margin-bottom: 4px; }
.community-banner p { color: var(--text-muted); font-size: 0.85rem; }
.price-tag-line {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.enterprise-card .price-tag-line { color: var(--warning); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.pricing-grid-3 {
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  position: relative;
}
.price-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 40px rgba(108, 92, 231, 0.15);
  transform: scale(1.03);
}
.price-popular {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 18px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.price-tier {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.price-amount { margin-bottom: 8px; }
.currency { font-size: 1.4rem; font-weight: 700; vertical-align: top; margin-top: 8px; display: inline-block; }
.price {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.period { color: var(--text-muted); font-size: 1rem; }
.price-plus {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 4px;
}
.price-desc { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 24px; }
.price-example {
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.price-features { list-style: none; margin-bottom: 28px; }
.price-features li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(30, 30, 46, 0.5);
}
.price-features li:last-child { border-bottom: none; }
.price-features li::before { content: '\2713  '; color: var(--success); font-weight: 700; }
.price-features li strong { color: var(--text); }
.beta-tag {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--warning);
  border: 1px solid rgba(255, 184, 0, 0.3);
  padding: 1px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  vertical-align: middle;
  margin-left: 4px;
}

/* === CTA / Contact === */
.cta {
  padding: 100px 0;
  text-align: center;
}
.cta h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 12px; }
.cta > .container > p { color: var(--text-muted); margin-bottom: 40px; font-size: 1.05rem; }
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.contact-form textarea { margin-bottom: 16px; resize: vertical; }
.contact-form select option { background: var(--bg-card); }
.contact-form .btn { width: 100%; }

/* === Footer === */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}
.footer-inner { }
.footer-brand { margin-bottom: 32px; }
.footer-brand p { color: var(--text-muted); font-size: 0.85rem; margin-top: 8px; }
.footer-links {
  display: flex;
  gap: 64px;
  margin-bottom: 32px;
}
.footer-links h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 12px; }
.footer-links a { display: block; color: var(--text-muted); font-size: 0.85rem; padding: 4px 0; transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; }
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); }
.footer-bottom a { color: var(--primary-light); }

/* === Responsive === */
@media (max-width: 1100px) {
  .pricing-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .price-card.featured { transform: none; }
}

@media (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .beta-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid, .pricing-grid-3 { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .price-card.featured { transform: none; }
  .price-example { flex-direction: column; gap: 4px; }
  .steps { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .oss-content { grid-template-columns: 1fr; }
  .community-banner-inner { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }
  .mobile-menu-btn { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .beta-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .form-row { grid-template-columns: 1fr; }
  .footer-links { flex-direction: column; gap: 24px; }
  .oss-actions { flex-direction: column; }
}