:root {
  --bg: #0b1220;
  --bg-alt: #0f172a;
  --card: #131c31;
  --line: #22304d;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-ink: #04202d;
  --radius: 12px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .6em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: rgba(11, 18, 32, .9); position: sticky; top: 0; backdrop-filter: blur(8px); z-index: 10; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; color: var(--text); margin: 0; }
.brand:hover { text-decoration: none; }
nav { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
nav a { color: var(--muted); font-size: .95rem; }
nav a:hover { color: var(--text); text-decoration: none; }

/* Buttons */
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); font-weight: 600; padding: 12px 22px; border-radius: 999px; }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn-small { padding: 7px 16px; font-size: .9rem; color: var(--accent-ink) !important; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

/* Sections */
.hero { padding: 96px 0 72px; }
.hero p.lead { font-size: 1.2rem; color: var(--muted); max-width: 680px; }
.eyebrow { display: inline-block; color: var(--accent); font-weight: 600; font-size: .85rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 14px; }
section { padding: 64px 0; }
section.alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card p:last-child { margin-bottom: 0; }
.card .tag { display: inline-block; font-size: .78rem; color: var(--accent); border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; margin-bottom: 10px; }
.steps { counter-reset: step; }
.steps .card::before { counter-increment: step; content: counter(step); display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 700; margin-bottom: 12px; }
ul.check { list-style: none; padding: 0; margin: 0; }
ul.check li { padding-left: 26px; position: relative; margin-bottom: 8px; }
ul.check li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.price { font-size: 1.8rem; font-weight: 700; margin: 4px 0 12px; }
.region-code { display: inline-block; font: 600 .8rem/1 ui-monospace, "Cascadia Code", Consolas, monospace; color: var(--accent); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }

/* Legal / prose pages */
.prose { max-width: 780px; }
.prose h2 { font-size: 1.35rem; margin-top: 2em; }
.prose li { margin-bottom: .4em; }
.notice { border-left: 3px solid var(--accent); background: var(--card); padding: 14px 18px; border-radius: 6px; margin: 20px 0; }

/* Home hero with product preview */
.hero-home { padding: 80px 0 64px; background: radial-gradient(900px 420px at 85% 10%, rgba(56, 189, 248, .14), transparent 70%), radial-gradient(700px 380px at 0% 100%, rgba(99, 102, 241, .10), transparent 70%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero-note { margin-top: 18px; font-size: .9rem; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } }

.window { background: #0d1526; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 30px 80px rgba(0, 0, 0, .45), 0 0 0 1px rgba(56, 189, 248, .06); overflow: hidden; font-size: .85rem; }
.window-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: #111b30; border-bottom: 1px solid var(--line); }
.window-bar i { width: 10px; height: 10px; border-radius: 50%; background: #334155; display: inline-block; }
.window-bar span { margin-left: 10px; color: var(--muted); font-size: .8rem; }
.window-body { display: grid; grid-template-columns: 150px 1fr; min-height: 300px; }
.window-side { border-right: 1px solid var(--line); padding: 14px 12px; color: var(--muted); font-size: .78rem; }
.window-side b { display: block; color: var(--text); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; margin: 4px 0 8px; }
.window-side div { padding: 4px 6px; border-radius: 5px; }
.window-side .on { background: rgba(56, 189, 248, .12); color: var(--text); }
.window-main { padding: 14px; display: grid; gap: 10px; align-content: start; }
.cell { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; background: #0b1220; font: .78rem/1.55 ui-monospace, "Cascadia Code", Consolas, monospace; color: #cbd5e1; white-space: pre; overflow: hidden; }
.cell .k { color: #c084fc; } .cell .s { color: #86efac; } .cell .c { color: #64748b; } .cell .n { color: #fbbf24; }
.cell-out { color: var(--muted); font-size: .75rem; }
.meters { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.meter { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; background: #0b1220; }
.meter small { color: var(--muted); display: block; font-size: .72rem; }
.meter strong { font-size: .95rem; }
.bar { height: 6px; background: #1e293b; border-radius: 99px; margin-top: 8px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); border-radius: 99px; }
@media (max-width: 560px) { .window-body { grid-template-columns: 1fr; } .window-side { display: none; } }

/* Tech strip */
.stack { padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-alt); }
.stack .wrap { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center; justify-content: center; color: var(--muted); font-weight: 600; font-size: .92rem; }
.stack .label { color: #64748b; font-weight: 500; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 20px; margin-top: 8px; }
.stat strong { display: block; font-size: 2rem; color: var(--text); letter-spacing: -0.02em; }
.stat span { color: var(--muted); font-size: .92rem; }

/* Section heading helper */
.section-head { max-width: 720px; margin-bottom: 28px; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* FAQ */
.faq details { border: 1px solid var(--line); border-radius: 10px; background: var(--card); padding: 0 20px; margin-bottom: 12px; }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none; position: relative; padding-right: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 14px; color: var(--accent); font-size: 1.3rem; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); padding-bottom: 16px; margin: 0; }

/* Architecture diagram */
.arch { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; align-items: stretch; }
.arch .node { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; position: relative; }
.arch .node h4 { margin: 0 0 6px; font-size: 1rem; }
.arch .node p { margin: 0; color: var(--muted); font-size: .9rem; }
.arch .node .layer { font: 600 .7rem/1 ui-monospace, Consolas, monospace; color: var(--accent); text-transform: uppercase; letter-spacing: .08em; display: block; margin-bottom: 10px; }

/* CTA band */
.cta-band { background: linear-gradient(135deg, rgba(56, 189, 248, .16), rgba(99, 102, 241, .14)); border: 1px solid var(--line); border-radius: 16px; padding: 40px; display: flex; gap: 24px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.cta-band h2 { margin: 0 0 6px; }
.cta-band p { margin: 0; color: var(--muted); }

/* Contact form */
.contact-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; align-items: start; }
.contact-side { display: grid; gap: 16px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.form { display: grid; gap: 16px; padding: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.form label { display: grid; gap: 6px; font-size: .9rem; font-weight: 600; color: var(--text); }
.form input, .form select, .form textarea { font: inherit; font-weight: 400; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; width: 100%; }
.form textarea { resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.form .consent { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; color: var(--muted); }
.form .consent input { width: auto; margin-top: 4px; }
.form button { justify-self: start; border: 0; cursor: pointer; font: inherit; font-weight: 600; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0 24px; margin-top: 40px; }
.footer-grid { display: grid; gap: 24px; grid-template-columns: 2fr repeat(3, 1fr); }
.footer-grid h4 { margin: 0 0 10px; font-size: .9rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.footer-grid a { display: block; color: var(--text); margin-bottom: 6px; font-size: .95rem; }
.legal-line { margin-top: 32px; font-size: .85rem; }
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 64px 0 48px; }
}