:root {
    color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 1.0625rem;
    line-height: 1.6;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--signal); text-underline-offset: 0.16em; }

a:hover { color: var(--signal-deep); }

h1, h2, h3, .display {
    font-family: var(--display);
    font-weight: 520;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin: 0;
}

p { margin: 0; }

.skip {
    position: absolute;
    left: 1rem;
    top: -4rem;
    background: var(--ice);
    color: var(--ink);
    padding: 0.5rem 0.8rem;
    z-index: 20;
}

.skip:focus { top: 0.5rem; }

.wrap {
    width: min(1120px, calc(100% - 2rem));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: color-mix(in srgb, var(--paper) 92%, white);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(10px);
}

.header-row {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    min-height: 4.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--ink);
    text-decoration: none;
    margin-right: auto;
}

.brand strong {
    display: block;
    font-family: var(--display);
    font-weight: 560;
    letter-spacing: 0.04em;
    font-size: 1.05rem;
}

.brand small {
    display: block;
    color: var(--slate);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.68rem;
}

.mark {
    width: 2.5rem;
    height: 2.5rem;
    flex: none;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1.15rem;
}

.nav a {
    color: var(--ink);
    text-decoration: none;
    font-size: 0.98rem;
}

.nav a[aria-current="page"] {
    color: var(--signal);
    box-shadow: inset 0 -2px 0 var(--signal);
}

.nav-toggle { display: none; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 2.75rem;
    padding: 0.55rem 1rem;
    border-radius: 4px;
    border: 1px solid transparent;
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.btn-signal {
    background: var(--signal);
    color: white;
}

.btn-signal:hover { background: var(--signal-deep); color: white; }

.btn-ice {
    background: var(--ice);
    color: var(--ink);
    border-color: var(--line);
}

.btn-ice:hover { border-color: var(--ink); color: var(--ink); }

.hero {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
    align-items: end;
    padding: 4.5rem 0 3.5rem;
}

.kicker {
    margin: 0 0 0.9rem;
    color: var(--signal);
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero h1 { font-size: clamp(2.4rem, 5vw, 4.3rem); max-width: 12ch; }

.lede {
    margin-top: 1.25rem;
    max-width: 38rem;
    color: var(--slate);
    font-size: 1.15rem;
}

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.6rem; }

.chart {
    background: var(--ice);
    border: 1px solid var(--line);
    padding: 1.25rem 1.25rem 0.4rem;
}

.chart h2 {
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
}

.chart ol { list-style: none; margin: 0; padding: 0; }

.chart li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
    align-items: start;
    padding: 0.75rem 0;
    border-top: 1px solid var(--line);
}

.chart a { color: var(--ink); text-decoration: none; font-weight: 650; }

.chart a:hover { color: var(--signal); }

.chart p { color: var(--slate); font-size: 0.95rem; margin-top: 0.15rem; }

.idx {
    font-variant-numeric: tabular-nums;
    color: var(--blue);
    font-weight: 700;
    font-size: 0.85rem;
    padding-top: 0.2rem;
}

.band { padding: 4rem 0; }

.band-mist { background: var(--mist); }

.band h2, .section-title { font-size: clamp(1.8rem, 3vw, 2.6rem); max-width: 18ch; }

.split { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 2.5rem; align-items: start; }

.prose { display: grid; gap: 1rem; color: var(--slate); max-width: 42rem; }

.prose strong { color: var(--ink); font-weight: 650; }

.grid-3, .grid-4, .grid-2 {
    display: grid;
    gap: 1rem;
    margin-top: 1.75rem;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card, .step, .offer {
    background: var(--ice);
    border: 1px solid var(--line);
    padding: 1.15rem 1.15rem 1.25rem;
}

.card h3, .step h3, .offer h3 { font-size: 1.25rem; margin: 0.35rem 0 0.45rem; }

.card p, .step p, .offer p { color: var(--slate); }

.step .no {
    font-variant-numeric: tabular-nums;
    color: var(--blue);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.fjord {
    background: var(--marine);
    color: var(--paper);
}

.fjord .prose, .fjord p { color: color-mix(in srgb, var(--paper) 86%, var(--mist)); }

.fjord h2 { color: white; }

.note {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid color-mix(in srgb, var(--paper) 28%, transparent);
    color: color-mix(in srgb, var(--paper) 78%, var(--mist));
    font-size: 0.95rem;
}

.faq { display: grid; gap: 0.6rem; margin-top: 1.5rem; }

details.qa {
    background: var(--ice);
    border: 1px solid var(--line);
    padding: 0.85rem 1rem;
}

details.qa summary {
    cursor: pointer;
    font-weight: 650;
}

details.qa p { margin-top: 0.7rem; color: var(--slate); }

.site-footer {
    background: var(--navy);
    color: var(--paper);
    padding: 2.5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 1.5rem;
}

.site-footer a { color: white; }

.site-footer p, .site-footer small { color: color-mix(in srgb, var(--paper) 82%, var(--line)); }

.fine { margin-top: 1.5rem; font-size: 0.9rem; }

.page-hero { padding: 3.2rem 0 1rem; }

.page-hero h1 { font-size: clamp(2.2rem, 4vw, 3.6rem); max-width: 16ch; }

.form {
    display: grid;
    gap: 0.9rem;
    margin-top: 1.25rem;
    max-width: 38rem;
}

label { display: grid; gap: 0.3rem; font-weight: 650; }

input, select, textarea {
    font: inherit;
    color: var(--ink);
    background: var(--ice);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 0.7rem 0.75rem;
    width: 100%;
}

textarea { min-height: 8rem; resize: vertical; }

.check { grid-template-columns: auto 1fr; align-items: start; font-weight: 450; }

.check input { width: auto; margin-top: 0.3rem; }

.error { color: var(--clay); font-size: 0.92rem; font-weight: 600; }

.alert {
    background: color-mix(in srgb, var(--moss) 12%, white);
    border: 1px solid color-mix(in srgb, var(--moss) 40%, white);
    color: var(--ink);
    padding: 0.9rem 1rem;
}

.panel-body { min-height: 100vh; display: grid; grid-template-columns: 16rem 1fr; }

.rail {
    background: var(--marine);
    color: var(--paper);
    padding: 1.4rem 1rem 2rem;
}

.rail a { color: white; text-decoration: none; }

.rail nav { display: grid; gap: 0.35rem; margin-top: 1.5rem; }

.rail a.here, .rail button.here {
    background: color-mix(in srgb, white 12%, transparent);
}

.rail nav a, .rail button {
    display: block;
    width: 100%;
    text-align: left;
    color: white;
    background: transparent;
    border: 0;
    font: inherit;
    padding: 0.55rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
}

.panel-main { padding: 2rem 1.4rem 3rem; }

.swatches {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.8rem;
    margin-top: 1rem;
}

.swatch {
    min-height: 9.5rem;
    border: 1px solid var(--line);
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 0.1rem;
}

.swatch b, .swatch span { line-height: 1.3; }

.swatch code { font-size: 0.85rem; }

.lockups { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; margin-top: 1rem; }

.lock {
    min-height: 8rem;
    display: flex;
    align-items: center;
    padding: 1.2rem;
    border: 1px solid var(--line);
}

.lock.on-dark { background: var(--marine); color: white; }
.lock .brand small { color: inherit; opacity: 0.78; }
.lock.on-dark small { color: color-mix(in srgb, white 75%, var(--mist)); }
.lock.on-light { background: var(--ice); }

.rules { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; margin-top: 1rem; }

.rule { border: 1px solid var(--line); background: var(--ice); padding: 1rem; }
.rule.no { border-color: color-mix(in srgb, var(--clay) 45%, var(--line)); }

.specimen { margin-top: 1rem; background: var(--ice); border: 1px solid var(--line); padding: 1.3rem; }
.specimen .display { font-size: clamp(2rem, 4vw, 3rem); max-width: 16ch; }
.specimen .meta { color: var(--slate); margin-top: 0.8rem; }

.table-wrap { overflow-x: auto; margin-top: 1rem; border: 1px solid var(--line); background: var(--ice); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--slate); }

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem 1rem;
    background:
        linear-gradient(180deg, var(--mist), var(--paper) 40%);
}

.login-card {
    width: min(28rem, 100%);
    background: var(--ice);
    border: 1px solid var(--line);
    padding: 1.5rem;
}

.login-card h1 { font-size: 2.2rem; margin: 0.8rem 0 0.4rem; }

.section-gap { margin-top: 2.4rem; }

@media (max-width: 860px) {
    .hero, .split, .grid-3, .grid-4, .grid-2, .footer-grid, .lockups, .rules, .panel-body {
        grid-template-columns: 1fr;
    }

    .nav-toggle { display: block; margin-left: auto; }
    .nav {
        display: none;
        position: absolute;
        left: 0;
        right: 0;
        top: 100%;
        background: var(--paper);
        border-bottom: 1px solid var(--line);
        padding: 0.6rem 1rem 1rem;
        flex-direction: column;
        align-items: flex-start;
    }
    .nav.open { display: flex; }
    .header-cta { display: none; }
    .hero { padding-top: 2.4rem; }
    .panel-body { display: block; }
    .rail nav { grid-template-columns: 1fr 1fr; }
}