/* Landing page. Dark first, light via prefers-color-scheme. No external fonts/assets. */
:root {
    --bg: #0b0f17;
    --bg-alt: #0f1522;
    --surface: #131a28;
    --surface-2: #1a2336;
    --border: #243049;
    --text: #e8edf5;
    --muted: #a7b3c6;
    --accent: #12d6a0;
    --accent-ink: #06231b;
    --accent-text: #3ee0b4;
    --up: #19c37d;
    --down: #ef5b5b;
    --flat: #5d6b85;
    --focus: #ffd166;
    --shadow: 0 24px 60px rgba(0, 0, 0, .45);
    --radius: 16px;
    --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f6f8fb;
        --bg-alt: #eaf0f7;
        --surface: #ffffff;
        --surface-2: #f1f5fa;
        --border: #d5dde9;
        --text: #0f1724;
        --muted: #455268;
        --accent: #0aa57c;
        --accent-ink: #ffffff;
        --accent-text: #047457;
        --up: #0b7a4d;
        --down: #c93a3a;
        --flat: #6b788f;
        --focus: #9a5b00;
        --shadow: 0 20px 50px rgba(15, 23, 36, .14);
    }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 1rem/1.6 var(--font);
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: var(--accent-text); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 6px; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.wrap--narrow { max-width: 780px; }

.skip {
    position: absolute; left: 12px; top: -60px; z-index: 100;
    background: var(--accent); color: var(--accent-ink); padding: 10px 14px; border-radius: 8px; font-weight: 700;
}
.skip:focus { top: 12px; }

/* Header */
.site-top {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.top-bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; font-size: 1.1rem; letter-spacing: -.01em; }
.top-nav { display: flex; gap: 2px; }
.top-nav a { white-space: nowrap; color: var(--muted); text-decoration: none; padding: 8px 10px; border-radius: 8px; font-size: .95rem; font-weight: 600; }
.top-nav a:hover { color: var(--text); background: var(--surface-2); }

/* Buttons */
.play-btn {
    display: inline-flex; align-items: center; gap: 12px;
    background: var(--accent); color: var(--accent-ink);
    padding: 12px 22px; border-radius: 14px; text-decoration: none; line-height: 1.15;
    border: 2px solid transparent;
}
.play-btn svg { flex: none; }
.play-btn__text { display: flex; flex-direction: column; text-align: left; }
.play-btn small { font-size: .72rem; font-weight: 600; opacity: .85; text-transform: uppercase; letter-spacing: .04em; }
.play-btn strong { font-size: 1.08rem; }
a.play-btn:hover { filter: brightness(1.06); }
.play-btn--soon { background: transparent; color: var(--text); border-color: var(--border); border-style: dashed; cursor: default; }
.btn-ghost {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 22px; border-radius: 14px; border: 1px solid var(--border);
    color: var(--text); text-decoration: none; font-weight: 700; background: var(--surface);
}
.btn-ghost:hover { border-color: var(--accent); }

/* Hero */
.hero { padding: 48px 0 56px; background: radial-gradient(900px 420px at 80% -10%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%); }
.hero__grid { display: grid; gap: 40px; align-items: center; }
.eyebrow { color: var(--accent-text); font-weight: 700; font-size: .9rem; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 12px; }
h1 { font-size: clamp(2.1rem, 6.4vw, 3.6rem); line-height: 1.08; letter-spacing: -.025em; font-weight: 800; }
.hero__sub { margin-top: 18px; color: var(--muted); font-size: 1.12rem; max-width: 36em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero__note { margin-top: 14px; color: var(--muted); font-size: .9rem; }

/* Phone mockup */
.hero__visual { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.hero__visual figcaption { color: var(--muted); font-size: .85rem; text-align: center; max-width: 320px; }
.phone {
    width: min(100%, 320px); padding: 10px; border-radius: 38px;
    background: linear-gradient(160deg, #2b364d, #131a28);
    box-shadow: var(--shadow); border: 1px solid var(--border);
}
.phone__screen { background: var(--surface); border-radius: 30px; padding: 16px 14px 14px; display: grid; gap: 12px; color: var(--text); }
.mock-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.mock-pair { display: block; font-size: 1.05rem; }
.mock-frame { color: var(--muted); font-size: .78rem; }
.mock-tag { background: var(--surface-2); border: 1px solid var(--accent); color: var(--accent-text); border-radius: 999px; padding: 3px 10px; font-size: .72rem; font-weight: 800; white-space: nowrap; }
.mock-block { background: var(--surface-2); border-radius: 14px; padding: 12px; }
.mock-h { font-size: .74rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.gauge { display: block; width: 100%; max-width: 220px; height: auto; margin: 0 auto; aspect-ratio: 200 / 118; }
.gauge-value { text-align: center; font-weight: 800; margin-top: 2px; }
.prob-bar { display: flex; height: 26px; border-radius: 8px; overflow: hidden; font-size: .76rem; font-weight: 800; }
.prob { display: flex; align-items: center; justify-content: center; color: #06120d; }
.prob--up { background: var(--up); }
.prob--flat { background: var(--flat); color: #fff; }
.prob--down { background: var(--down); }
.prob-legend { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 8px; font-size: .78rem; color: var(--muted); }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; }
.dot--up { background: var(--up); } .dot--flat { background: var(--flat); } .dot--down { background: var(--down); }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tile { background: var(--surface-2); border-radius: 12px; padding: 9px 11px; display: grid; }
.tile span { font-size: .72rem; color: var(--muted); }
.tile strong { font-size: 1.05rem; }
.mock-sum { border-left: 3px solid var(--accent); padding: 2px 0 2px 10px; font-size: .84rem; }
.mock-sum .mock-h { margin-bottom: 2px; }
.mock-demo { text-align: center; font-size: .72rem; color: var(--muted); }

/* Sections */
.section { padding: 64px 0; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--border); }
.section__intro { max-width: 680px; margin-bottom: 32px; }
h2 { font-size: clamp(1.6rem, 4.2vw, 2.3rem); line-height: 1.15; letter-spacing: -.02em; font-weight: 800; }
.section__intro p { margin-top: 10px; color: var(--muted); font-size: 1.05rem; }
h3 { font-size: 1.08rem; line-height: 1.3; font-weight: 700; }

.grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card h3 { margin: 12px 0 6px; }
.card p { color: var(--muted); font-size: .96rem; }
.card__icon { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: 12px; background: var(--surface-2); color: var(--accent-text); }
.card__icon--sm { width: 34px; height: 34px; border-radius: 10px; }
.card--plain h3 { margin-top: 10px; }
.icon { width: 24px; height: 24px; flex: none; }
.card__icon--sm .icon { width: 20px; height: 20px; }

/* Steps */
.steps { display: grid; gap: 14px; counter-reset: none; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.step__no { display: inline-flex; width: 38px; height: 38px; align-items: center; justify-content: center; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 800; }
.step h3 { margin: 12px 0 6px; }
.step p { color: var(--muted); }
.note-box { margin-top: 20px; padding: 14px 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); font-size: .95rem; }

/* Trust */
.trust { display: grid; gap: 28px; }
.trust h3 { margin-bottom: 12px; }
.sources { display: grid; gap: 10px; }
.sources li { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.sources strong { display: block; }
.sources span { color: var(--muted); font-size: .94rem; }
.fine { margin-top: 12px; color: var(--muted); font-size: .85rem; }
.points { display: grid; gap: 12px; }
.points li { display: flex; gap: 10px; align-items: flex-start; color: var(--text); }
.points .icon { color: var(--accent-text); margin-top: 2px; }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.faq summary { cursor: pointer; padding: 16px 18px; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--accent-text); flex: none; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { padding: 0 18px 16px; color: var(--muted); }

/* Final CTA + risk */
.final { padding: 20px 0 56px; }
.final__box {
    text-align: center; display: grid; justify-items: center; gap: 14px;
    padding: 44px 20px; border-radius: 24px; border: 1px solid var(--border);
    background: linear-gradient(180deg, var(--surface), var(--bg-alt));
}
.final__box p { color: var(--muted); max-width: 34em; }
.final__box .fine { margin-top: 0; }
.risk { padding: 0 0 56px; }
.risk .wrap { border: 1px solid var(--down); border-radius: var(--radius); padding: 22px; background: color-mix(in srgb, var(--down) 8%, var(--surface)); }
.risk h2 { font-size: 1.15rem; letter-spacing: 0; }
.risk p { margin-top: 8px; color: var(--text); font-size: .96rem; }

/* Footer */
.site-foot { border-top: 1px solid var(--border); background: var(--bg-alt); padding: 36px 0 28px; color: var(--muted); font-size: .94rem; }
.foot-grid { display: grid; gap: 24px; }
.foot-brand { color: var(--text); font-weight: 800; font-size: 1.1rem; margin-bottom: 6px; }
.foot-title { color: var(--text); font-weight: 700; margin-bottom: 8px; }
.site-foot ul { display: grid; gap: 6px; }
.site-foot a { color: var(--muted); text-underline-offset: 3px; }
.site-foot a:hover { color: var(--text); }
.foot-bottom { margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--border); display: grid; gap: 6px; font-size: .85rem; }

/* Larger screens */
@media (min-width: 640px) {
    .grid--4, .grid--3 { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(3, 1fr); }
    .sources { grid-template-columns: 1fr 1fr; }
    .foot-grid { grid-template-columns: 2fr 1fr; }
}
@media (min-width: 960px) {
    .hero { padding: 72px 0 80px; }
    .hero__grid { grid-template-columns: 1.1fr .9fr; gap: 56px; }
    .grid--4 { grid-template-columns: repeat(4, 1fr); }
    .grid--3 { grid-template-columns: repeat(3, 1fr); }
    .trust { grid-template-columns: 1.2fr 1fr; gap: 48px; }
    .section { padding: 88px 0; }
}
@media (max-width: 380px) {
    .wrap { padding: 0 16px; }
    .brand span { font-size: 1rem; }
    .top-nav a { padding: 8px 6px; font-size: .88rem; }
    .play-btn { padding: 12px 16px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { transition: none !important; animation: none !important; }
}

@media (prefers-color-scheme: light) {
    .prob { color: #fff; }
}