:root {
  --bg: #ffffff;
  --bg-alt: #f3f6fb;
  --surface: #ffffff;
  --text: #121a27;
  --muted: #566274;
  --border: #dde3ec;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --accent-soft: #e8f0fe;
  --hero: #0b1628;
  --hero-2: #12284a;
  --hero-text: #e9f0fb;
  --hero-muted: #a9b9d0;
  --ok: #16a34a;
  --shadow: 0 18px 50px rgba(11, 22, 40, .16);
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220; --bg-alt: #0f182a; --surface: #131d30; --text: #e6ecf5; --muted: #9aa8bb;
    --border: #24324a; --accent: #5b93ff; --accent-strong: #79a7ff; --accent-soft: #17284a;
    --shadow: 0 18px 50px rgba(0, 0, 0, .5); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1220; --bg-alt: #0f182a; --surface: #131d30; --text: #e6ecf5; --muted: #9aa8bb;
  --border: #24324a; --accent: #5b93ff; --accent-strong: #79a7ff; --accent-soft: #17284a;
  --shadow: 0 18px 50px rgba(0, 0, 0, .5); color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .88em; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.25rem); margin: .2em 0 .5em; }
h3 { font-size: 1.1rem; margin: .6em 0 .35em; }
:focus-visible { outline: 3px solid #7fb0ff; outline-offset: 3px; border-radius: 4px; }
.wrap { width: min(1160px, 100%); margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #fff; padding: 8px 12px; border-radius: 6px; z-index: 10; }
.skip:focus { left: 8px; }

/* Header */
.top { position: sticky; top: 0; z-index: 5; background: rgba(11, 22, 40, .92); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(255, 255, 255, .08); }
.top-row { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--hero-text); font-weight: 750; font-size: 1.1rem; text-decoration: none; }
.top-nav { display: flex; gap: 22px; margin-left: auto; }
.top-nav a { color: var(--hero-muted); text-decoration: none; font-size: .95rem; }
.top-nav a:hover { color: #fff; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 10px; font-weight: 600; font-size: .98rem;
  text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, background .12s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 6px 12px; font-size: .9rem; }
.btn-lg { padding: 13px 22px; font-size: 1.05rem; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 22px rgba(37, 99, 235, .35); }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { border-color: var(--border); color: var(--text); background: var(--surface); }
.btn-ghost-light { border-color: rgba(255, 255, 255, .22); color: var(--hero-text); background: rgba(255, 255, 255, .05); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 8px; }
.cta-center { justify-content: center; }

/* Hero */
.hero { background: radial-gradient(1200px 500px at 85% -10%, #1f4b8f 0%, transparent 60%), linear-gradient(160deg, var(--hero), var(--hero-2));
  color: var(--hero-text); padding: 72px 0 84px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); margin: .25em 0 .35em; }
.lead { font-size: 1.15rem; color: var(--hero-muted); max-width: 34em; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; font-weight: 700; color: var(--hero-muted); margin: 0; }
.eyebrow-accent { color: var(--accent); }
.hero-points { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 6px; color: var(--hero-muted); font-size: .97rem; }
.hero-points i { color: #4ade80; margin-right: 6px; }
.hero-shot { margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
  border: 1px solid rgba(255, 255, 255, .12); transform: perspective(1600px) rotateY(-6deg) rotateX(2deg); }
@media (prefers-reduced-motion: reduce) { .hero-shot { transform: none; } }
.browser { display: flex; gap: 6px; padding: 9px 12px; background: #1b2840; }
.browser span { width: 10px; height: 10px; border-radius: 50%; background: #3b4c69; }

/* Sections */
.section { padding: 88px 0; }
.section.alt, .band { background: var(--bg-alt); }
.band { padding: 88px 0; }
.lead-dark { color: var(--muted); font-size: 1.1rem; max-width: 40em; margin: 0 auto 8px; }
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.shot { margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--border); background: var(--surface); }
.shot-wide { max-width: 1040px; margin: 24px auto 0; }
.ticks { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 8px; }
.ticks li { padding-left: 28px; position: relative; }
.ticks li::before { content: "\F26E"; font-family: "bootstrap-icons"; position: absolute; left: 0; top: 0; color: var(--ok); font-weight: 700; }

/* Feature cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; margin-top: 36px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.card > i { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 10px; font-size: 1.3rem;
  background: var(--accent-soft); color: var(--accent); }
.card p { margin: 0; color: var(--muted); font-size: .97rem; }

/* Screenshot tabs */
.tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 26px; }
.tabs button { font: inherit; font-size: .93rem; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Install */
.install { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 34px 0 18px; }
.install-card h3 { display: flex; align-items: center; gap: 10px; margin-top: 0; }
.install-card h3 i { color: var(--accent); }
.code { display: flex; align-items: flex-start; gap: 8px; margin-top: 14px; background: #0b1628; color: #d9e6fb; border-radius: 10px; padding: 12px 12px 12px 14px; }
.code code { flex: 1; white-space: pre-wrap; word-break: break-all; font-size: .85rem; line-height: 1.5; }
.copy { flex: none; border: 1px solid rgba(255, 255, 255, .2); background: transparent; color: #d9e6fb; border-radius: 7px; padding: 4px 8px; cursor: pointer; }
.copy.done { color: #4ade80; border-color: #4ade80; }

/* Security */
.sec-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.sec-list li { display: flex; gap: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.sec-list i { font-size: 1.4rem; color: var(--accent); }
.sec-list strong { display: block; }
.sec-list span { color: var(--muted); font-size: .95rem; }
#security .btn { margin: 14px 8px 0 0; }

/* Footer */
.final { padding-bottom: 96px; }
.foot { border-top: 1px solid var(--border); padding: 28px 0; background: var(--bg-alt); }
.foot-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.brand-foot { color: var(--text); font-size: 1rem; }
.foot nav { display: flex; flex-wrap: wrap; gap: 18px; }
.foot nav a { color: var(--muted); text-decoration: none; font-size: .93rem; }
.foot nav a:hover { color: var(--accent); }

@media (max-width: 900px) {
  .top-nav { display: none; }
  .top-row .btn { margin-left: auto; }
  .hero { padding: 48px 0 56px; }
  .hero-grid, .split, .install { grid-template-columns: 1fr; gap: 32px; }
  .hero-shot { transform: none; }
  .section, .band { padding: 60px 0; }
}
@media (max-width: 480px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .btn-lg { width: 100%; justify-content: center; }
}