:root {
  --bg: #0a0a0a;
  --bg-elev: #111113;
  --bg-card: #141417;
  --border: #1f1f23;
  --border-hi: #2a2a30;
  --text: #f5f5f7;
  --text-dim: #a1a1aa;
  --text-mute: #71717a;
  --accent: #2563eb;
  --accent-hi: #3b82f6;
  --accent-glow: rgba(37, 99, 235, 0.35);
  --radius: 14px;
  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

img, svg { display: block; max-width: 100%; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 17px;
}
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #1d4ed8);
  box-shadow: 0 0 24px var(--accent-glow);
  position: relative;
}
.logo-mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 3px;
  background: #fff;
  opacity: 0.95;
  clip-path: polygon(0 60%, 25% 60%, 40% 15%, 55% 85%, 75% 40%, 100% 40%);
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--text); }

@media (max-width: 680px) {
  .nav-links a:not(.btn) { display: none; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s;
  font-family: inherit;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 24px -6px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-hi);
  transform: translateY(-1px);
  box-shadow: 0 10px 32px -6px var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-hi);
}
.btn-ghost:hover { background: var(--bg-elev); }
.btn-lg { padding: 16px 30px; font-size: 16px; }

/* Section */
.section {
  padding: 90px 0;
  position: relative;
}
.section-tight { padding: 56px 0; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-hi);
  margin-bottom: 14px;
}
h1, h2, h3 {
  letter-spacing: -0.02em;
  line-height: 1.15;
  font-weight: 700;
}
h1 {
  font-size: clamp(38px, 6vw, 68px);
}
h2 {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 16px;
}
h3 { font-size: 20px; }

.lead {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--text-dim);
  max-width: 620px;
}

/* Hero */
.hero {
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(circle at center, var(--accent-glow), transparent 70%);
  filter: blur(40px);
  z-index: -1;
  opacity: 0.6;
}
.hero-inner { text-align: center; max-width: 820px; margin: 0 auto; }
.hero h1 span { color: var(--accent-hi); }
.hero .lead {
  margin: 22px auto 36px;
  font-size: clamp(17px, 1.8vw, 21px);
}
.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-meta {
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-mute);
}

/* Problem / Solution */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 820px) {
  .two-col { grid-template-columns: 1fr; gap: 32px; }
}

.stat-list {
  display: grid;
  gap: 20px;
}
.stat-item {
  padding: 20px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.stat-item strong {
  display: block;
  color: var(--accent-hi);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.stat-item span {
  color: var(--text-dim);
  font-size: 14px;
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
@media (max-width: 820px) { .feature-grid { grid-template-columns: 1fr; } }
.feature {
  padding: 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s, transform 0.15s;
}
.feature:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.feature-icon {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--accent-hi);
  margin-bottom: 16px;
}
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--text-dim); font-size: 15px; }

/* Pricing */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 44px;
}
@media (max-width: 900px) { .price-grid { grid-template-columns: 1fr; } }
.price-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.price-card.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.08), var(--bg-card) 80%);
  box-shadow: 0 20px 60px -20px var(--accent-glow);
}
.price-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.price-name {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 12px;
}
.price-amount {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
.price-amount sub {
  font-size: 15px;
  color: var(--text-dim);
  font-weight: 500;
  margin-left: 4px;
  vertical-align: baseline;
}
.price-features {
  list-style: none;
  margin: 26px 0;
  padding: 0;
  display: grid;
  gap: 12px;
  flex: 1;
}
.price-features li {
  font-size: 14px;
  color: var(--text-dim);
  display: flex;
  gap: 10px;
  align-items: start;
}
.price-features li::before {
  content: "";
  flex: 0 0 16px;
  width: 16px; height: 16px;
  margin-top: 4px;
  background: var(--accent-hi);
  border-radius: 50%;
  mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path fill='black' d='M7.5 13.5L4 10l1.4-1.4 2.1 2.1L14.6 3.6 16 5z'/></svg>") center/contain no-repeat;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path fill='black' d='M7.5 13.5L4 10l1.4-1.4 2.1 2.1L14.6 3.6 16 5z'/></svg>") center/contain no-repeat;
}
.price-note {
  font-size: 12px;
  color: var(--text-mute);
  text-align: center;
  margin-top: 16px;
}

/* Proof banner */
.proof {
  padding: 60px 0;
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.proof h2 {
  max-width: 760px;
  margin: 0 auto 12px;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.3;
}
.proof p {
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 auto;
}

/* FAQ */
.faq-list {
  margin-top: 36px;
  max-width: 760px;
  display: grid;
  gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.faq-item summary {
  padding: 18px 22px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent-hi);
  font-size: 22px;
  font-weight: 400;
  transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  padding: 0 22px 20px;
  color: var(--text-dim);
  font-size: 15px;
}

/* CTA banner */
.cta-banner {
  padding: 90px 0;
  text-align: center;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.14), transparent 60%), var(--bg);
}
.cta-banner h2 { margin-bottom: 18px; }
.cta-banner p { color: var(--text-dim); max-width: 540px; margin: 0 auto 32px; }

/* Footer */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  color: var(--text-mute);
  font-size: 14px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-inner a { color: var(--text-dim); }
.footer-inner a:hover { color: var(--text); }

/* Forms */
.form-shell {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
@media (max-width: 600px) { .form-shell { padding: 28px 22px; } }
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
}
.form-group .hint {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 6px;
}
input[type=text], input[type=email], input[type=tel], input[type=url],
input[type=password], select, textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}
textarea { resize: vertical; min-height: 120px; }
input[type=file] {
  width: 100%;
  padding: 10px 0;
  color: var(--text-dim);
  font-size: 14px;
}
.check-grid, .radio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}
.check-item, .radio-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  transition: border-color 0.15s, background 0.15s;
}
.check-item:hover, .radio-item:hover { border-color: var(--accent); }
.check-item input, .radio-item input {
  accent-color: var(--accent);
  width: 16px; height: 16px;
}
.form-note {
  margin-top: 20px;
  padding: 14px 18px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: 10px;
  color: var(--text-dim);
  font-size: 14px;
}
.page-intro {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
}
.page-intro h1 {
  font-size: clamp(32px, 4.5vw, 44px);
  margin-bottom: 12px;
}
.page-intro p { color: var(--text-dim); }
