/* Public landing page. Same-origin only (no web fonts, no external assets); light and dark. */
:root {
  color-scheme: light;
  --page: #ffffff; --soft: #f5f6f8; --surface: #ffffff; --ink: #0f1419; --ink-2: #4b5563; --muted: #6b7280;
  --line: #e3e6ea; --accent: #2a78d6; --accent-strong: #1d5fb0; --accent-ink: #ffffff; --accent-wash: #e8f1fc;
  --good: #0b6b2b; --good-bg: #e4f4e8; --bad: #b42323; --bad-bg: #fbe9e9; --warn: #8a5a00; --warn-bg: #fdf1d6;
  --shadow: 0 1px 2px rgba(15,20,25,.06), 0 8px 24px rgba(15,20,25,.07);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0c0f13; --soft: #12161b; --surface: #171b21; --ink: #f3f5f7; --ink-2: #b6bdc7; --muted: #8b94a1;
    --line: #262c34; --accent: #4b97ee; --accent-strong: #7db3f4; --accent-ink: #06121f; --accent-wash: #14253a;
    --good: #55cf7c; --good-bg: #12301c; --bad: #f08a8a; --bad-bg: #3a1a1a; --warn: #fab219; --warn-bg: #3a2f10;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--page); color: var(--ink); font: 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img, svg { max-width: 100%; }
a { color: var(--accent-strong); }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); letter-spacing: -.025em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
code { font: .86em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--soft); border: 1px solid var(--line); border-radius: 5px; padding: .05em .35em; }
[hidden] { display: none !important; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wrap { width: min(1120px, 100% - 40px); margin: 0 auto; }
.narrow { width: min(780px, 100% - 40px); }
.muted { color: var(--ink-2); }
.noscript { text-align: center; color: var(--ink-2); }

.ic { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -.2em; }
.ic.big { width: 32px; height: 32px; color: var(--accent); }

.skip { position: absolute; left: 12px; top: -60px; background: var(--ink); color: var(--page); padding: 10px 14px; border-radius: 8px; z-index: 20; }
.skip:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 9px 16px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); text-decoration: none; font: inherit; font-weight: 600; font-size: .95rem; cursor: pointer; transition: background .15s, border-color .15s, transform .15s; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--soft); border-color: transparent; }
.btn.big { padding: 13px 22px; font-size: 1.02rem; border-radius: 12px; }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--page) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 24px; min-height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; color: var(--ink); text-decoration: none; letter-spacing: -.01em; }
.logo-mark { width: 26px; height: 26px; border-radius: 8px; }
.top-nav { display: flex; gap: 4px; flex: 1; }
.top-nav a { padding: 8px 12px; border-radius: 8px; color: var(--ink-2); text-decoration: none; font-size: .95rem; }
.top-nav a:hover { background: var(--soft); color: var(--ink); }
.top-cta { display: flex; gap: 8px; margin-left: auto; }

/* hero */
.hero { padding: clamp(40px, 7vw, 88px) 0 clamp(36px, 6vw, 72px); background: radial-gradient(1000px 420px at 85% -10%, var(--accent-wash), transparent 70%); }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.eyebrow { display: inline-block; margin: 0 0 16px; padding: 4px 12px; border-radius: 999px; background: var(--accent-wash); color: var(--accent-strong); font-weight: 700; font-size: .85rem; }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--ink-2); margin: 20px 0 28px; max-width: 36em; }
.lead strong { color: var(--ink); font-weight: 650; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.ticks { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--ink-2); font-size: .95rem; }
.ticks .ic { color: var(--good); margin-right: 6px; }

/* the example advice card */
.sample { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); padding: 20px; font-size: .95rem; }
.sample-bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; color: var(--muted); font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.tag { padding: 3px 10px; border-radius: 999px; font-size: .75rem; letter-spacing: .02em; text-transform: none; }
.tag.high { background: var(--bad-bg); color: var(--bad); }
.sample-title { font-size: 1.2rem; margin: 10px 0 14px; }
.sample-rows { margin: 0; }
.sample-rows > div { display: grid; grid-template-columns: 5.6em 1fr; gap: 10px; padding: 9px 0; border-top: 1px solid var(--line); }
.sample-rows dt { color: var(--muted); font-weight: 650; }
.sample-rows dd { margin: 0; }
.sample-rows .bad { color: var(--bad); } .sample-rows .good { color: var(--good); }
.sample-foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px 16px; margin-top: 6px; padding-top: 14px; border-top: 1px solid var(--line); }
.effect { color: var(--ink-2); }
.effect .ic { margin-right: 6px; }
.points { background: var(--good-bg); color: var(--good); font-weight: 700; padding: 4px 12px; border-radius: 999px; font-size: .88rem; }

.band { background: var(--soft); border-block: 1px solid var(--line); }
.band-text { margin: 0; padding: 22px 0; text-align: center; color: var(--ink-2); }
.band-text strong { color: var(--ink); }

/* sections */
.section { padding: clamp(48px, 8vw, 96px) 0; }
.section.alt { background: var(--soft); border-block: 1px solid var(--line); }
.section-head { text-align: center; max-width: 40em; margin: 0 auto clamp(28px, 4vw, 48px); }
.section-head p { color: var(--ink-2); margin: 12px 0 0; font-size: 1.08rem; }

.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.step-n { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--accent); color: var(--accent-ink); font-weight: 800; margin-bottom: 14px; }
.steps h3 { margin-bottom: 8px; }
.steps p { margin: 0; color: var(--ink-2); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.feature h3 { margin: 12px 0 8px; }
.feature p { margin: 0; color: var(--ink-2); font-size: .98rem; }

.two { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 64px); align-items: start; }
.two h2 { margin-bottom: 12px; }
.checks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 20px; }
.checks li { position: relative; padding-left: 28px; color: var(--ink-2); font-size: .97rem; }
.checks li::before { content: ""; position: absolute; left: 4px; top: .35em; width: 6px; height: 11px; border-right: 2.5px solid var(--good); border-bottom: 2.5px solid var(--good); transform: rotate(40deg); }
.safe { background: var(--accent-wash); border: 1px solid var(--line); border-radius: 20px; padding: clamp(22px, 3vw, 32px); }
.safe h2 { font-size: 1.5rem; margin: 12px 0 14px; }
.safe p { color: var(--ink-2); }
.safe p:last-child { margin-bottom: 0; }


/* product tour: every panel is visible without script; the script turns them into tabs */
.tour-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 0 0 28px; }
.tour-tabs button { font: inherit; font-weight: 600; font-size: .95rem; padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); cursor: pointer; transition: background .15s, color .15s, border-color .15s; }
.tour-tabs button:hover { border-color: var(--accent); color: var(--ink); }
.tour-tabs button[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.tour-panel { margin-bottom: 64px; }
.tour-panel:last-child, .tour-tabs ~ .tour-panel { margin-bottom: 0; }
.tour-panel:focus-visible { outline-offset: 8px; }
.tour-text { max-width: 44em; margin: 0 auto 28px; text-align: center; }
.tour-text h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin-bottom: 10px; }
.tour-text p { color: var(--ink-2); margin: 0; font-size: 1.05rem; }
.shot { margin: 0 auto; max-width: 1100px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.shot + .shot { margin-top: 24px; }
.shot.second { max-width: 860px; }
.shot-bar { display: flex; gap: 6px; padding: 10px 14px; background: var(--soft); border-bottom: 1px solid var(--line); }
.shot-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.shot a.zoom { display: block; cursor: zoom-in; }
.shot img { display: block; width: 100%; height: auto; }
.tour-panel.portrait { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 520px); gap: clamp(24px, 5vw, 64px); align-items: center; }
.tour-panel.portrait .tour-text { text-align: left; margin: 0; }
.tour-panel.portrait .shot { max-width: 520px; width: 100%; }
@media (max-width: 820px) { .tour-panel.portrait .tour-text { text-align: center; } .tour-panel.portrait .shot { margin: 0 auto; } }

.lightbox { padding: 0; border: 0; background: transparent; max-width: 100vw; max-height: 100vh; overflow: auto; color: #fff; }
.lightbox::backdrop { background: rgba(8, 12, 18, .82); }
.lightbox img { display: block; width: min(1500px, 94vw); height: auto; margin: 3vh auto; border-radius: 10px; background: #fff; box-shadow: 0 20px 60px rgba(0, 0, 0, .5); }
.lightbox .lb-close { position: fixed; top: 14px; right: 18px; width: 40px; height: 40px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .92); color: #111; font-size: 24px; line-height: 1; cursor: pointer; }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: stretch; }
.plan { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 24px 20px; }
.plan h3 { font-size: 1.1rem; }
.price { font-size: 2rem; font-weight: 800; letter-spacing: -.02em; margin: 8px 0 16px; min-height: 1.4em; }
.price small { font-size: .95rem; font-weight: 500; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 0 0 22px; flex: 1; }
.plan li { position: relative; padding: 6px 0 6px 24px; color: var(--ink-2); font-size: .95rem; }
.plan li::before { content: ""; position: absolute; left: 2px; top: .8em; width: 5px; height: 10px; border-right: 2px solid var(--good); border-bottom: 2px solid var(--good); transform: rotate(40deg); }
.plan .btn { width: 100%; }
.plans-note { text-align: center; color: var(--ink-2); margin: 24px 0 0; font-size: .95rem; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font-weight: 650; font-size: 1.05rem; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 8px; top: 50%; width: 9px; height: 9px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: translateY(-70%) rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq details p { margin: 0 0 18px; color: var(--ink-2); padding-right: 24px; }

.final { background: linear-gradient(135deg, var(--accent-strong), var(--accent)); color: #fff; text-align: center; }
.final-in { padding: clamp(44px, 7vw, 80px) 0; }
.final h2 { color: #fff; }
.final p { margin: 12px 0 24px; opacity: .92; font-size: 1.1rem; }
.final .btn.primary { background: #fff; border-color: #fff; color: #174d8f; }
.final .btn.primary:hover { background: #eaf2fd; }

.foot { border-top: 1px solid var(--line); color: var(--muted); font-size: .92rem; }
.foot-in { display: flex; justify-content: space-between; gap: 16px 32px; flex-wrap: wrap; padding: 28px 0; }
.foot-brand p { margin: 4px 0 0; }
.foot-name { font-weight: 800; color: var(--ink); }
.foot-parent { color: var(--ink-2); }
.foot-legal { font-size: .85rem; }
.foot nav { display: flex; gap: 18px; flex-wrap: wrap; align-self: flex-start; }
.foot a { color: var(--ink-2); }
.foot a:hover { color: var(--accent-strong); }
.foot nav a { text-decoration: none; }

/* long text pages (privacy) */
.legal { padding: clamp(32px, 6vw, 72px) 0 clamp(40px, 7vw, 88px); }
.legal h1 { margin-bottom: 6px; }
.legal h2 { font-size: 1.4rem; margin: 2.2em 0 .6em; scroll-margin-top: 80px; }
.legal p, .legal li { color: var(--ink-2); }
.legal ul { padding-left: 1.25em; }
.legal li { margin: .35em 0; }
.legal strong { color: var(--ink); }
.legal .lead-in { font-size: 1.1rem; margin: 1.2em 0; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; }
.toc a { padding: 5px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink-2); text-decoration: none; font-size: .9rem; }
.toc a:hover { border-color: var(--accent); color: var(--ink); }
.legal-table { width: 100%; border-collapse: collapse; font-size: .93rem; margin: 1em 0 1.4em; }
.legal-table th, .legal-table td { text-align: left; vertical-align: top; padding: 12px 14px; border-top: 1px solid var(--line); }
.legal-table thead th { border-top: 0; color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; }
.legal-table tbody th { font-weight: 600; color: var(--ink); width: 36%; }
.legal-table td { color: var(--ink-2); }
.code { margin: 1em 0; padding: 14px 16px; background: var(--soft); border: 1px solid var(--line); border-radius: 10px; overflow-x: auto; }
.code code { background: none; border: 0; padding: 0; }
@media (max-width: 720px) { .legal-table thead { display: none; } .legal-table, .legal-table tbody, .legal-table tr, .legal-table th, .legal-table td { display: block; width: 100%; } .legal-table tr { border-top: 1px solid var(--line); padding: 10px 0; } .legal-table th, .legal-table td { border: 0; padding: 4px 0; } .legal-table tbody th { width: 100%; } }

@media (max-width: 980px) {
  .plans { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .hero-in, .two, .tour-panel.portrait { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .top-nav { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .cards, .plans, .checks { grid-template-columns: 1fr; }
  .top-in { gap: 12px; }
  .top-cta .ghost { display: none; }
  .btn.big { width: 100%; }
  .cta-row { flex-direction: column; }
  .sample-rows > div { grid-template-columns: 1fr; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}