:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #5b6b82;
  --border: #e2e8f0;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: #eff4ff;
  --accent-text: #ffffff;
  --ok: #15803d;
  --ok-soft: #ecfdf3;
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --shadow: 0 1px 2px rgb(15 23 42 / 0.05), 0 12px 32px rgb(15 23 42 / 0.07);
  --radius: 14px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a0f1c; --bg-soft: #0f1627; --surface: #121a2d; --text: #e5eaf3; --muted: #94a3b8;
    --border: #23304a; --accent: #3b82f6; --accent-strong: #60a5fa; --accent-soft: #14213d;
    --ok: #4ade80; --ok-soft: #0f2a1c; --warn: #fbbf24; --warn-soft: #2a2110; --danger: #f87171; --danger-soft: #2c1414;
    --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0a0f1c; --bg-soft: #0f1627; --surface: #121a2d; --text: #e5eaf3; --muted: #94a3b8;
  --border: #23304a; --accent: #3b82f6; --accent-strong: #60a5fa; --accent-soft: #14213d;
  --ok: #4ade80; --ok-soft: #0f2a1c; --warn: #fbbf24; --warn-soft: #2a2110; --danger: #f87171; --danger-soft: #2c1414;
  --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}
[hidden] { display: none !important; }
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 12px; letter-spacing: -0.01em; }
h1 { font-size: clamp(34px, 6vw, 56px); letter-spacing: -0.02em; }
h2 { font-size: clamp(26px, 4vw, 36px); }
h3 { font-size: 19px; }
p { margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.center { text-align: center; }
.section { padding: 80px 0; }
.section.soft { background: var(--bg-soft); }
.section-head { max-width: 680px; margin: 0 auto 44px; text-align: center; }
.eyebrow { color: var(--accent); font-weight: 650; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 8px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.nav .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 750; font-size: 18px; color: var(--text); }
.logo:hover { text-decoration: none; }
.nav-links { display: flex; gap: 22px; margin-left: 8px; }
.nav-links a { color: var(--muted); font-weight: 550; font-size: 15px; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.nav .menu-toggle { display: none; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 600; font-size: 15px; cursor: pointer; white-space: nowrap;
  padding: 10px 18px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text);
}
.btn:hover { text-decoration: none; border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn.lg { padding: 14px 24px; font-size: 17px; border-radius: 12px; }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.danger { color: var(--danger); }
.btn.sm { padding: 6px 12px; font-size: 14px; }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* hero */
.hero { padding: 72px 0 56px; background: radial-gradient(1000px 420px at 50% -10%, var(--accent-soft), transparent 70%); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 540px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 14px; }
.trust { display: flex; flex-wrap: wrap; gap: 18px; color: var(--muted); font-size: 14px; }
.trust span::before { content: "✓ "; color: var(--ok); font-weight: 700; }

.mock {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden;
}
.mock-bar { display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--border); background: var(--bg-soft); }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.mock-body { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 18px; }
.mock-card { border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.mock-card .label { font-size: 12px; color: var(--muted); }
.mock-card .value { font: 700 22px ui-monospace, Menlo, Consolas, monospace; letter-spacing: 0.03em; }
.mock-card .field { margin-top: 8px; height: 34px; border-radius: 8px; background: var(--bg-soft); border: 1px solid var(--border); font: 600 15px ui-monospace, Menlo, monospace; display: flex; align-items: center; padding: 0 10px; color: var(--muted); }
.mock-card .go { margin-top: 10px; height: 34px; border-radius: 8px; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 650; font-size: 14px; }
.mock-screen { grid-column: 1 / -1; height: 150px; border-radius: 12px; background: linear-gradient(135deg, #1e3a8a, #2563eb 55%, #38bdf8); position: relative; }
.mock-screen::after { content: "● Connected · Direct · 18 ms"; position: absolute; left: 12px; bottom: 10px; color: #fff; font-size: 13px; font-weight: 600; }

/* grids & cards */
.grid { display: grid; gap: 20px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card.raised { box-shadow: var(--shadow); }
.icon-badge { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-size: 20px; margin-bottom: 14px; }
.steps { counter-reset: step; }
.step { position: relative; padding-top: 56px; }
.step::before {
  counter-increment: step; content: counter(step); position: absolute; top: 18px; left: 24px;
  width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 15px;
}

/* pricing */
.period-toggle { display: inline-flex; border: 1px solid var(--border); border-radius: 999px; padding: 4px; gap: 4px; background: var(--surface); margin-bottom: 28px; }
.period-toggle button { font: inherit; font-size: 14px; font-weight: 600; border: 0; background: transparent; color: var(--muted); padding: 7px 14px; border-radius: 999px; cursor: pointer; }
.period-toggle button[aria-pressed="true"] { background: var(--accent); color: #fff; }
.price-card { display: flex; flex-direction: column; gap: 4px; position: relative; text-align: left; }
.price-card.featured { border: 2px solid var(--accent); box-shadow: var(--shadow); }
.price-card .tag { position: absolute; top: -12px; left: 24px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.price { font-size: 40px; font-weight: 800; letter-spacing: -0.02em; }
.price small { font-size: 15px; font-weight: 500; color: var(--muted); }
.features { list-style: none; padding: 0; margin: 16px 0 22px; display: flex; flex-direction: column; gap: 8px; }
.features li { padding-left: 26px; position: relative; font-size: 15px; }
.features li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 800; }
.price-card .btn { margin-top: auto; }

/* downloads */
.dl-main { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.dl-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 14px; }
.dl-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dl-item .meta { font-size: 13px; color: var(--muted); }

/* faq */
details { border-bottom: 1px solid var(--border); padding: 16px 0; }
details summary { cursor: pointer; font-weight: 650; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
details summary::after { content: "+"; color: var(--muted); font-size: 22px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin: 10px 0 0; color: var(--muted); }

/* cta + footer */
.cta { background: linear-gradient(135deg, #1d4ed8, #2563eb 50%, #0ea5e9); color: #fff; border-radius: 20px; padding: 48px; text-align: center; }
.cta p { color: rgb(255 255 255 / 0.85); }
.cta .btn { background: #fff; color: #1d4ed8; border-color: #fff; }
footer { border-top: 1px solid var(--border); padding: 40px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; }
footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer a { color: var(--muted); }

/* forms & app pages */
.page { padding: 48px 0 80px; min-height: calc(100vh - 64px - 120px); }
.form { display: flex; flex-direction: column; gap: 6px; }
.form label { font-size: 14px; color: var(--muted); margin-top: 8px; }
input, select, textarea {
  font: inherit; color: inherit; background: var(--bg-soft); border: 1px solid var(--border);
  border-radius: 10px; padding: 10px 12px; width: 100%;
}
.form .btn { margin-top: 16px; }
.auth-card { max-width: 420px; margin: 0 auto; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; }
.tabs button { font: inherit; font-weight: 600; background: none; border: 0; border-bottom: 2px solid transparent; padding: 10px 14px; color: var(--muted); cursor: pointer; }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--accent); }
.alert { border-radius: 10px; padding: 12px 14px; font-size: 15px; margin: 10px 0; }
.alert.error { background: var(--danger-soft); color: var(--danger); }
.alert.ok { background: var(--ok-soft); color: var(--ok); }
.alert.warn { background: var(--warn-soft); color: var(--warn); }
.dash { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.dash .full { grid-column: 1 / -1; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; font-size: 15px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; }
.pill { display: inline-block; font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 999px; background: var(--bg-soft); border: 1px solid var(--border); text-transform: capitalize; }
.pill.paid, .pill.pro, .pill.business { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.pill.review, .pill.pending { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.pill.rejected, .pill.failed, .pill.cancelled { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }
.row > .btn { flex: 0 0 auto; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; }

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .grid.cols-3 { grid-template-columns: 1fr; }
  .grid.cols-2, .dash { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--border); padding: 12px 16px; gap: 12px; }
  .nav .menu-toggle { display: inline-flex; }
  .section { padding: 56px 0; }
  .cta { padding: 32px 20px; }
}
@media (max-width: 520px) {
  .nav-actions .hide-sm { display: none; }
  .mock-body { grid-template-columns: 1fr; }
}
.narrow { max-width: 820px; }
.row h1, .row h3 { margin: 0; }
.mb { margin-bottom: 20px; }
.mt { margin-top: 14px; }
.mt-lg { margin-top: 20px; }
.price.total { font-size: 28px; margin: 12px 0 0; }