:root {
  --ink: #0f2233;
  --ink-soft: #3d5568;
  --muted: #6b8193;
  --bg: #f6faf9;
  --surface: #ffffff;
  --surface-2: #eef5f4;
  --line: #d9e6e5;
  --harbor: #2b5d84;
  --harbor-deep: #183c5a;
  --sea: #4fb3a6;
  --sea-soft: #d7efeb;
  --lantern: #f2b24f;
  --lantern-soft: #fdf0d9;
  --danger: #d9614c;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(15, 34, 51, .06), 0 12px 32px -12px rgba(15, 34, 51, .18);
  --max: 1160px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8f1f2;
    --ink-soft: #b5c7cf;
    --muted: #8aa1ad;
    --bg: #0b1823;
    --surface: #11222f;
    --surface-2: #162b3a;
    --line: #23394a;
    --harbor: #6aa5d3;
    --harbor-deep: #0e2232;
    --sea: #5cc6b8;
    --sea-soft: #133a3a;
    --lantern: #f5be62;
    --lantern-soft: #3a2f1b;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 16px 40px -16px rgba(0, 0, 0, .6);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--harbor); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-family: "Fraunces", Georgia, serif; font-weight: 600; letter-spacing: -.02em; line-height: 1.12; margin: 0 0 .5em; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4.2rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
h3 { font-size: 1.25rem; font-family: "Inter", system-ui, sans-serif; font-weight: 650; letter-spacing: -.01em; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

.eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 650; letter-spacing: .12em; text-transform: uppercase;
  color: var(--sea); margin-bottom: 14px;
}
.lede { font-size: 1.2rem; color: var(--ink-soft); max-width: 640px; }
.center { text-align: center; }
.center .lede { margin-left: auto; margin-right: auto; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(1.4) blur(14px); background: color-mix(in srgb, var(--bg) 82%, transparent); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); font-size: 1.08rem; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 24px; margin-left: auto; font-size: .95rem; }
.nav-links a { color: var(--ink-soft); }
@media (max-width: 820px) { .nav-links { display: none; } .nav .btn { margin-left: auto; } }

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: .98rem;
  background: var(--harbor); color: #fff; border: 1px solid transparent; transition: transform .15s, box-shadow .15s;
}
@media (prefers-color-scheme: dark) { .btn { background: var(--sea); color: #06201f; } }
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.small { padding: 8px 16px; font-size: .9rem; }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 88px 0 72px; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto; height: 760px; z-index: -1;
  background:
    radial-gradient(600px 360px at 18% 20%, var(--sea-soft), transparent 70%),
    radial-gradient(520px 320px at 85% 10%, color-mix(in srgb, var(--harbor) 18%, transparent), transparent 70%),
    radial-gradient(260px 200px at 70% 55%, var(--lantern-soft), transparent 70%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } .hero { padding-top: 56px; } }
.hero h1 em { font-style: italic; color: var(--harbor); }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 18px; }
.fine { font-size: .88rem; color: var(--muted); }

/* App window mock */
.window { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.titlebar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--line); background: var(--surface-2); }
.titlebar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.titlebar i:nth-child(2) { background: #febc2e; }
.titlebar i:nth-child(3) { background: #28c840; }
.titlebar span { margin-left: 10px; font-size: .78rem; color: var(--muted); font-weight: 600; }
.win-body { display: grid; grid-template-columns: 150px 1fr; min-height: 340px; }
.sidebar { border-right: 1px solid var(--line); padding: 12px 8px; font-size: .8rem; color: var(--ink-soft); }
.sidebar div { padding: 6px 10px; border-radius: 7px; }
.sidebar .on { background: var(--sea-soft); color: var(--ink); font-weight: 600; }
.map { position: relative; padding: 14px; }
.map svg { width: 100%; height: auto; }
@media (max-width: 520px) { .win-body { grid-template-columns: 1fr; } .sidebar { display: none; } }

/* Trust strip */
.trust { border-block: 1px solid var(--line); background: var(--surface); }
.trust .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding-top: 22px; padding-bottom: 22px; }
.trust div { display: flex; gap: 10px; align-items: center; font-size: .93rem; color: var(--ink-soft); font-weight: 500; }
.trust svg { flex: none; color: var(--sea); }
@media (max-width: 820px) { .trust .wrap { grid-template-columns: 1fr 1fr; } }

section { padding: 96px 0; }
@media (max-width: 600px) { section { padding: 64px 0; } }
.alt { background: var(--surface); border-block: 1px solid var(--line); }

/* Feature grid */
.grid { display: grid; gap: 20px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.two { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid.three { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid.three, .grid.two { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.alt .card { background: var(--bg); }
.card p { color: var(--ink-soft); margin: 0; font-size: .98rem; }
.card ul { margin: 12px 0 0; padding-left: 18px; color: var(--ink-soft); font-size: .95rem; }
.icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 18px; background: var(--sea-soft); color: var(--sea); }
.icon.amber { background: var(--lantern-soft); color: #c98a1f; }
.icon.blue { background: color-mix(in srgb, var(--harbor) 14%, transparent); color: var(--harbor); }
.section-head { margin-bottom: 52px; }

/* How it works diagram */
.flow { display: grid; grid-template-columns: 1fr auto 1.1fr auto 1fr; align-items: center; gap: 14px; margin-top: 20px; }
.flow .node { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; text-align: center; }
.flow .node.mac { border: 2px solid var(--sea); box-shadow: var(--shadow); }
.flow .node strong { display: block; margin-bottom: 4px; }
.flow .node span { font-size: .88rem; color: var(--muted); }
.flow .arrow { color: var(--muted); font-size: 1.4rem; }
.flow .pills { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-top: 12px; }
.pill { font-size: .75rem; padding: 3px 10px; border-radius: 999px; background: var(--surface-2); color: var(--ink-soft); font-weight: 600; }
.pill.block { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); }
.pill.safe { background: var(--sea-soft); color: var(--sea); }
@media (max-width: 860px) { .flow { grid-template-columns: 1fr; } .flow .arrow { transform: rotate(90deg); justify-self: center; } }

/* Steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 58px; }
.step::before {
  counter-increment: step; content: counter(step); position: absolute; top: 24px; left: 28px;
  font-family: "Fraunces", Georgia, serif; font-size: 1.4rem; font-weight: 600; color: var(--harbor);
}

/* DNS tabs */
.os { margin-top: 40px; }
.os-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.os-tabs button {
  font: inherit; font-size: .9rem; font-weight: 600; padding: 8px 16px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink-soft);
}
.os-tabs button[aria-selected="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.os-panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; }
.alt .os-panel { background: var(--bg); }
.os-panel ol { margin: 0; padding-left: 20px; color: var(--ink-soft); }
.os-panel li { margin-bottom: 6px; }
.os-panel[hidden] { display: none; }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .88em; background: var(--surface-2); padding: 2px 6px; border-radius: 6px; }

/* Schedule showcase */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.checks { list-style: none; padding: 0; margin: 20px 0 0; }
.checks li { padding-left: 32px; position: relative; margin-bottom: 12px; color: var(--ink-soft); }
.checks li::before { content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%; background: var(--sea-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10.5l2.5 2.5L14 7.5' fill='none' stroke='%234fb3a6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat; }
.sched { padding: 22px; }
.sched-row { display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 12px; margin-bottom: 14px; font-size: .85rem; color: var(--ink-soft); }
.bar { position: relative; height: 26px; border-radius: 8px; background: var(--surface-2); overflow: hidden; }
.bar span { position: absolute; top: 0; bottom: 0; border-radius: 8px; font-size: .72rem; font-weight: 650; color: #fff; display: flex; align-items: center; padding: 0 8px; white-space: nowrap; }
.bar .bed { background: var(--harbor); }
.bar .school { background: var(--lantern); color: #3d2a06; }
.bar .ok { background: var(--sea); }
.hours { display: grid; grid-template-columns: 70px repeat(5, 1fr); font-size: .7rem; color: var(--muted); margin-top: 4px; }
.hours span:first-child { grid-column: 2; }

/* Promo banner */
.promo {
  border-radius: 28px; padding: 64px 48px; color: #fff; position: relative; overflow: hidden;
  background: linear-gradient(135deg, #183c5a 0%, #2b5d84 50%, #3f9a90 100%);
}
.promo::after { content: ""; position: absolute; right: -80px; bottom: -120px; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(242, 178, 79, .55), transparent 65%); }
.promo h2 { color: #fff; max-width: 620px; }
.promo p { color: rgba(255, 255, 255, .85); max-width: 560px; font-size: 1.1rem; }
.promo .btn { background: #fff; color: #183c5a; }
.promo .btn.ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .4); }
.promo .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; position: relative; z-index: 1; }
.promo img { position: absolute; right: 48px; top: 50%; transform: translateY(-50%); width: 200px; border-radius: 44px; box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .5); z-index: 1; }
@media (max-width: 860px) { .promo img { display: none; } .promo { padding: 48px 24px; } }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 48px; }
.stats div { border-left: 3px solid var(--sea); padding-left: 16px; }
.stats strong { display: block; font-family: "Fraunces", Georgia, serif; font-size: 2.1rem; line-height: 1.1; }
.stats span { font-size: .9rem; color: var(--muted); }
@media (max-width: 760px) { .stats { grid-template-columns: 1fr 1fr; } }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.06rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 12px 0 0; color: var(--ink-soft); }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 40px 0; font-size: .9rem; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between; }
footer nav { display: flex; gap: 20px; }
footer a { color: var(--ink-soft); }

/* Plain document pages */
.doc { max-width: 760px; margin: 0 auto; padding: 72px 24px 96px; }
.doc h1 { font-size: clamp(2rem, 5vw, 3rem); }
.doc h2 { font-size: 1.5rem; margin-top: 2em; }
.doc ul { color: var(--ink-soft); }
.doc p { color: var(--ink-soft); }

.hero-grid > *, .split > *, .grid > * { min-width: 0; }

/* Screenshots */
.shot { margin: 0; border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); background: #24282b; }
.shot img { width: 100%; height: auto; }
.hero-shot { box-shadow: 0 2px 4px rgba(15, 34, 51, .08), 0 30px 60px -24px rgba(15, 34, 51, .45); }
.tour-tabs { justify-content: center; margin-bottom: 24px; }
.tour-panel[hidden] { display: none; }
.tour-notes { margin-top: 32px; }
.tour-notes h3 { font-size: 1.05rem; margin-bottom: .35em; }
.tour-notes p { color: var(--ink-soft); font-size: .96rem; margin: 0; }