:root {
  --bg: #ffffff; --bg-soft: #f4f7f7; --ink: #10201f; --ink-soft: #4b5c5b; --line: #dbe4e3;
  --accent: #0f766e; --accent-ink: #ffffff; --accent-soft: #e0f2ef; --warn: #b45309; --bad: #b91c1c; --bad-soft: #fdecec;
  --ok-soft: #e6f6ec; --code-bg: #0d1b1a; --code-ink: #d7f5ef;
  --radius: 10px; --max: 1080px;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0c1413; --bg-soft: #121e1d; --ink: #e5efee; --ink-soft: #9fb3b1; --line: #24403d;
          --accent: #2dd4bf; --accent-ink: #062b27; --accent-soft: #0f2f2b; --bad-soft: #3a1515; --ok-soft: #0f2e1c; --code-bg: #060d0c; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body { display: flex; flex-direction: column; min-height: 100vh; line-height: 1.55; font-size: 16px; }
main { flex: 1; }
a { color: var(--accent); }
code { font-family: Consolas, "Cascadia Mono", monospace; font-size: .92em; background: var(--bg-soft); padding: .1em .35em; border-radius: 4px; }
h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.15; margin: .2em 0 .4em; letter-spacing: -.02em; }
h2 { font-size: 1.4rem; margin: 2em 0 .6em; }
h3 { margin: 0 0 .4em; font-size: 1.05rem; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.page { padding-top: 40px; padding-bottom: 64px; }
.narrow { max-width: 720px; }
.lead { font-size: 1.15rem; color: var(--ink-soft); max-width: 60ch; }
.fine { font-size: .9rem; color: var(--ink-soft); }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 600; color: var(--accent); margin: 0; }

.top { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 5; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: baseline; gap: 8px; text-decoration: none; color: var(--ink); }
.logo { font-weight: 800; font-size: 1.35rem; letter-spacing: .04em; color: var(--accent); }
.brand-sub { font-size: .85rem; color: var(--ink-soft); }
nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
nav a { text-decoration: none; color: var(--ink-soft); font-weight: 500; }
nav a.active, nav a:hover { color: var(--ink); }
@media (max-width: 720px) { .brand-sub { display: none; } .nav { flex-wrap: wrap; height: auto; padding-top: 10px; padding-bottom: 10px; } nav { gap: 12px; font-size: .92rem; } .top { position: static; } }

.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: var(--radius);
       padding: .75em 1.25em; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { filter: brightness(1.08); }
.btn nav a, nav a.btn { color: var(--accent-ink); }
.btn-small { padding: .45em .9em; font-size: .92rem; }
.btn-ghost { background: transparent; color: var(--accent); box-shadow: inset 0 0 0 1.5px var(--accent); }
.btn-warn { background: var(--warn); color: #fff; }

.hero { background: linear-gradient(180deg, var(--accent-soft), var(--bg)); padding: 64px 0 48px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 12px; }
.terminal { background: var(--code-bg); color: var(--code-ink); border-radius: 12px; overflow: hidden; box-shadow: 0 20px 50px rgba(0,0,0,.18); }
.term-bar { display: flex; gap: 6px; padding: 10px 12px; background: rgba(255,255,255,.06); }
.term-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.25); }
.terminal pre { margin: 0; padding: 18px 20px; font: 14px/1.6 Consolas, "Cascadia Mono", monospace; overflow-x: auto; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; padding-top: 48px; padding-bottom: 48px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: var(--bg); }
.card p { margin: 0; color: var(--ink-soft); }
.band { background: var(--bg-soft); padding: 48px 0 56px; border-top: 1px solid var(--line); }
.steps h2 { margin-top: 0; }
.steps ol { padding-left: 1.2em; max-width: 70ch; }
.steps li { margin-bottom: .8em; }

.tiers { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin: 28px 0 12px; }
.tier { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.tier-featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.tier-range { font-weight: 600; color: var(--ink-soft); }
.tier-price { font-size: 2rem; font-weight: 700; margin: .2em 0; }
.tier-unit { color: var(--ink-soft); font-size: .9rem; }
.ticks { list-style: none; padding: 0; }
.ticks li { padding-left: 1.6em; position: relative; margin: .5em 0; }
.ticks li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.form { display: grid; gap: 6px; margin-top: 24px; }
.form label { font-weight: 600; margin-top: 12px; }
.form input[type=text], .form input:not([type]), .form input[type=email], .form input[type=file] {
  font: inherit; padding: .6em .75em; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); width: 100%; }
.form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form .check { font-weight: 400; display: flex; gap: 8px; align-items: flex-start; }
.form .btn { margin-top: 18px; justify-self: start; }
.hint { margin: 0; font-size: .85rem; color: var(--ink-soft); }
.err { color: var(--bad); font-size: .9rem; }
.alert { background: var(--bad-soft); border: 1px solid var(--bad); border-radius: var(--radius); padding: 12px 16px; margin: 16px 0; }
.alert:empty, .validation-summary-valid { display: none; }
.alert ul { margin: .4em 0 0; padding-left: 1.2em; }
.success { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
           background: var(--ok-soft); border: 1px solid var(--accent); border-radius: var(--radius); padding: 16px 20px; margin: 16px 0; }
.success span { display: block; color: var(--ink-soft); font-size: .92rem; }

.summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 16px 0 20px; }
.summary div { background: var(--bg-soft); border-radius: var(--radius); padding: 14px 16px; }
.summary span { display: block; color: var(--ink-soft); font-size: .88rem; }
.summary strong { font-size: 1.4rem; }
.summary small { font-size: .8rem; font-weight: 400; color: var(--ink-soft); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 20px 0; }
.actions form { margin: 0; }

.grid { width: 100%; border-collapse: collapse; font-size: .92rem; display: block; overflow-x: auto; }
.grid th, .grid td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.grid th { color: var(--ink-soft); font-weight: 600; }
.grid td.key code { font-size: .8rem; }

pre.code { background: var(--code-bg); color: var(--code-ink); border-radius: var(--radius); padding: 16px 18px; overflow-x: auto; font: 13.5px/1.6 Consolas, "Cascadia Mono", monospace; }
pre.legal { white-space: pre-wrap; font: 14px/1.6 Consolas, "Cascadia Mono", monospace; background: var(--bg-soft); padding: 20px; border-radius: var(--radius); }
.faq dt { font-weight: 600; margin-top: 1.2em; }
.faq dd { margin: .3em 0 0; color: var(--ink-soft); }

.foot { border-top: 1px solid var(--line); padding: 24px 0; font-size: .88rem; color: var(--ink-soft); }
.foot-grid { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot-links { display: flex; gap: 16px; flex-wrap: wrap; }
.card p.dl { margin-top: 14px; }

/* Pay by invoice */
.invoice-option { margin: 8px 0 24px; border: 1px solid var(--bg-soft); border-radius: var(--radius); padding: 12px 16px; }
.invoice-option > summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.invoice-option .form { margin-top: 8px; max-width: 520px; }