:root {
  --bg: #0B1220;
  --bg-2: #0E1628;
  --surface: #131D33;
  --surface-2: #16223B;
  --border: #24314D;
  --ink: #E6EDF7;
  --muted: #9AA8BF;
  --accent: #22D3EE;
  --accent-2: #6366F1;
  --good: #34D399;
  --bad: #F87171;
  --grad: linear-gradient(135deg, var(--accent), var(--accent-2));
  --radius: 14px;
  --maxw: 1160px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.3rem, 5.2vw, 3.8rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.12rem; font-weight: 700; }
p { margin: 0 0 1em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 820px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: -48px; background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { top: 12px; }
.muted { color: var(--muted); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--grad); color: #06101F; font: 700 16px/1 var(--font);
  padding: 15px 22px; border: 0; border-radius: 11px; cursor: pointer;
  box-shadow: 0 8px 24px -8px rgba(34, 211, 238, .55);
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 12px 28px -8px rgba(34, 211, 238, .7); }
.btn:disabled { opacity: .6; cursor: progress; transform: none; }
.btn-sm { padding: 10px 16px; font-size: 15px; }
.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 18, 32, .82);
  -webkit-backdrop-filter: saturate(160%) blur(12px); backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid rgba(36, 49, 77, .6);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; font-size: 18px; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a:not(.btn) { color: var(--muted); font-size: 15px; font-weight: 500; }
.nav-links a:not(.btn):hover { color: var(--ink); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--ink); border-radius: 10px; padding: 8px; cursor: pointer; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 20px 20px;
  }
  .nav-links.open { display: flex; }
  .nav-links li a:not(.btn) { display: block; padding: 12px 0; font-size: 17px; }
  .nav-links .btn { margin-top: 8px; width: 100%; }
}

/* Hero */
.hero {
  position: relative; overflow: hidden;
  padding: 72px 0 88px;
  background:
    radial-gradient(800px 420px at 85% 10%, rgba(99, 102, 241, .22), transparent 60%),
    radial-gradient(700px 380px at 10% 0%, rgba(34, 211, 238, .16), transparent 60%);
}
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 600; color: var(--ink);
  background: rgba(34, 211, 238, .08); border: 1px solid rgba(34, 211, 238, .28);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 4px rgba(52, 211, 153, .18); }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 36em; margin-bottom: 28px; }
.hero-form { position: relative; display: flex; flex-wrap: wrap; gap: 10px; max-width: 520px; }
.hero-form input[type="email"] { flex: 1 1 240px; }
.hero-form .form-status { flex-basis: 100%; }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px 22px; list-style: none; padding: 0; margin: 18px 0 0; color: var(--muted); font-size: 15px; }
.hero-points li::before { content: "✓"; color: var(--good); font-weight: 800; margin-right: 8px; }
.hero-art img {
  width: 100%; border-radius: 18px;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .8), 0 0 0 1px rgba(99, 102, 241, .15);
}
@media (max-width: 960px) {
  .hero { padding: 48px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
}

/* Inputs */
input, select, textarea {
  width: 100%; font: 400 16px/1.4 var(--font); color: var(--ink);
  background: var(--bg-2); border: 1px solid var(--border); border-radius: 11px;
  padding: 14px 16px; transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; min-height: 96px; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 40px; }
input::placeholder, textarea::placeholder { color: #5F6D89; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(34, 211, 238, .2); }
.form-status { margin: 4px 0 0; font-size: 15px; min-height: 1.4em; }
.form-status.ok { color: var(--good); }
.form-status.err { color: var(--bad); }

/* Sections */
.section { padding: 96px 0; }
.band { background: var(--bg-2); border-top: 1px solid rgba(36, 49, 77, .55); border-bottom: 1px solid rgba(36, 49, 77, .55); }
.section-head { max-width: 760px; margin-bottom: 48px; }
.section-head p:not(.kicker) { color: var(--muted); font-size: 1.1rem; }
.kicker { color: var(--accent); font-weight: 700; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 12px; }
@media (max-width: 700px) { .section { padding: 68px 0; } .section-head { margin-bottom: 32px; } }

.icon { width: 44px; height: 44px; padding: 10px; border-radius: 12px; background: rgba(34, 211, 238, .1); border: 1px solid rgba(34, 211, 238, .22); fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 18px; }

.stats, .features, .audiences { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); }
.stat, .feature, .audience, .step {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px;
}
.stat p, .feature p, .audience p, .step p { color: var(--muted); margin: 0; font-size: 16px; }
.feature { transition: border-color .2s, transform .2s; }
.feature:hover { border-color: rgba(34, 211, 238, .45); transform: translateY(-2px); }
@media (max-width: 960px) { .stats, .features, .audiences { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .stats, .features, .audiences { grid-template-columns: 1fr; } }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: s; }
.step { position: relative; }
.step-num { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--grad); color: #06101F; font-weight: 800; margin-bottom: 18px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

/* Split */
.split { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; }
.split > div > p { color: var(--muted); font-size: 1.1rem; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 36px; } }
.checks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 34px; }
.checks li::before { content: ""; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%; background: rgba(52, 211, 153, .15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='%2334D399' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat; }

.alert-card {
  margin: 0; background: linear-gradient(180deg, #1B2A4A, var(--surface)); border: 1px solid rgba(248, 113, 113, .45);
  border-radius: 18px; padding: 28px; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .8), 0 0 60px -20px rgba(248, 113, 113, .35);
}
.alert-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-size: 14px; }
.alert-title { font-size: 1.3rem; font-weight: 800; margin-bottom: 6px; }
.alert-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.badge { font-size: 13px; font-weight: 700; padding: 5px 11px; border-radius: 999px; }
.badge-red { color: var(--bad); background: rgba(248, 113, 113, .14); border: 1px solid rgba(248, 113, 113, .35); }
.chip { font-size: 13px; padding: 6px 12px; border-radius: 999px; background: rgba(52, 211, 153, .12); color: var(--good); border: 1px solid rgba(52, 211, 153, .3); }

/* Frameworks */
.frameworks { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 12px; }
.frameworks li { padding: 14px 22px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); font-weight: 700; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--border); padding: 4px 0; }
.faq details:first-child { border-top: 1px solid var(--border); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 40px 20px 0; font-weight: 700; font-size: 1.08rem; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 26px; font-weight: 400; color: var(--accent); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--muted); padding-right: 40px; margin-bottom: 22px; }

/* CTA */
.cta { background: radial-gradient(700px 400px at 0% 100%, rgba(34, 211, 238, .14), transparent 60%), radial-gradient(700px 400px at 100% 0%, rgba(99, 102, 241, .18), transparent 60%); }
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.cta-grid > div > p { color: var(--muted); font-size: 1.1rem; }
.cta-grid > div > p.muted { margin-top: 28px; font-size: 1rem; }
.card-form { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 30px; box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .8); }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.fine { font-size: 13px; color: var(--muted); margin: 12px 0 0; }
@media (max-width: 860px) { .cta-grid { grid-template-columns: 1fr; gap: 36px; } .card-form { padding: 22px; } }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 36px 0; font-size: 15px; }
.footer-grid { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.footer-grid nav { display: flex; flex-wrap: wrap; gap: 22px; }
.footer-grid nav a { color: var(--muted); }
.footer-grid nav a:hover { color: var(--ink); }
.footer-grid p { margin: 0; }

/* Simple content pages */
.page { padding: 72px 0 96px; }
.page h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.page h2 { font-size: 1.35rem; margin-top: 2em; }
.page p, .page li { color: var(--muted); }
.mt-lg { margin-top: 48px; }

/* Prevent grid/flex children (e.g. the 960px hero image) from forcing horizontal overflow */
.hero-grid > *, .split > *, .cta-grid > *, .stats > *, .features > *, .audiences > *, .steps > * { min-width: 0; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 860px) { .split, .cta-grid, .steps { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 640px) { .stats, .features, .audiences { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 480px) { .hero-form .btn { width: 100%; } }