:root {
    --ink: #111827;
    --ink-soft: #374151;
    --muted: #4b5563;
    --line: #e5e7eb;
    --paper: #f4f6f9;
    --white: #ffffff;
    --navy: #111827;
    --navy-2: #1f2937;
    --navy-3: #374151;
    --blue: #3b82f6;
    --blue-deep: #2563eb;
    --blue-soft: #60a5fa;
    --amber: #f59e0b;
    --amber-text: #92400e;
    --red: #b91c1c;
    --green-text: #166534;
    --shadow: 0 18px 40px rgba(17, 24, 39, 0.12);
    --radius: 16px;
    --header: 4.25rem;
    --wrap: 1120px;
    --focus: 2px solid var(--amber);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
    line-height: 1.55;
    min-height: 100vh;
}

img { max-width: 100%; height: auto; }

a { color: var(--blue-deep); }

:focus-visible {
    outline: var(--focus);
    outline-offset: 3px;
}

.skip {
    position: absolute;
    left: 1rem;
    top: -4rem;
    z-index: 20;
    background: var(--white);
    color: var(--ink);
    padding: 0.6rem 0.9rem;
    border-radius: 8px;
}

.skip:focus { top: 0.75rem; }

.wrap {
    width: min(var(--wrap), calc(100% - 2rem));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: var(--navy);
    color: #f9fafb;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header .wrap {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: var(--header);
}

.brand {
    display: flex;
    align-items: center;
    margin-right: auto;
    text-decoration: none;
}

.brand picture,
.brand img {
    display: block;
    height: 44px;
    width: 73px;
}

.nav-toggle {
    display: none;
    min-width: 44px;
    min-height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    background: transparent;
    color: #f9fafb;
    font: inherit;
    font-weight: 600;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem 1rem;
}

.site-nav a {
    color: #e5e7eb;
    text-decoration: none;
    font-weight: 500;
    padding: 0.4rem 0.15rem;
}

.site-nav a:hover { color: var(--white); }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-left: 0.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.65rem 1.05rem;
    border-radius: 12px;
    border: 1px solid transparent;
    font: inherit;
    font-weight: 650;
    text-decoration: none;
    cursor: pointer;
}

.btn--primary {
    background: var(--blue-deep);
    color: #ffffff;
}

.btn--primary:hover { background: #1d4ed8; }

.btn--ghost {
    background: transparent;
    color: #f9fafb;
    border-color: rgba(255, 255, 255, 0.35);
}

.btn--ghost:hover { background: rgba(255, 255, 255, 0.06); }

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

.btn--dark:hover { background: #e5e7eb; }

.btn--line {
    background: transparent;
    color: #f9fafb;
    border-color: rgba(255, 255, 255, 0.4);
}

.fine {
    margin: 0.7rem 0 0;
    color: #d1d5db;
    font-size: 0.92rem;
}

.hero {
    background:
        radial-gradient(640px 280px at 90% 0%, rgba(59, 130, 246, 0.18), transparent 60%),
        var(--navy);
    color: #f9fafb;
    padding: 3.25rem 0 3.5rem;
}

.hero__grid,
.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 2.5rem;
    align-items: center;
}

.eyebrow {
    margin: 0 0 0.7rem;
    color: #fcd34d;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; }

.hero h1 {
    margin: 0 0 1rem;
    max-width: 18ch;
    font-size: clamp(2.15rem, 4.6vw, 3.6rem);
    font-weight: 700;
}

.lede {
    margin: 0 0 1.4rem;
    max-width: 38rem;
    color: #d1d5db;
    font-size: 1.12rem;
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.band { padding: 4rem 0; }

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

.band--ink {
    background: var(--navy-2);
    color: #f9fafb;
}

.band h2 {
    margin: 0 0 0.75rem;
    font-size: clamp(1.7rem, 3vw, 2.25rem);
}

.band .intro {
    margin: 0 0 1.75rem;
    max-width: 42rem;
    color: var(--ink-soft);
    font-size: 1.05rem;
}

.band--ink .intro { color: #d1d5db; }

.scatter {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.scatter li,
.card,
.due,
.history,
.project,
.device {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgba(17, 24, 39, 0.04);
}

.scatter li { padding: 1.1rem 1rem 1.2rem; }

.scatter h3,
.card h3,
.project h3 { margin: 0 0 0.35rem; font-size: 1.05rem; }

.scatter p,
.card p { margin: 0; color: var(--muted); }

.resolve {
    margin: 1.25rem 0 0;
    padding: 1rem 1.1rem;
    border-left: 3px solid var(--blue);
    background: var(--white);
    border-radius: 0 12px 12px 0;
    color: var(--ink);
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.9rem;
}

.card { padding: 1rem; color: var(--ink); }

.card__meta,
.facts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.8rem;
    margin: 0.7rem 0 0;
    padding: 0;
    list-style: none;
    color: var(--muted);
    font-size: 0.92rem;
}

.stage {
    display: grid;
    gap: 1rem;
}

.device {
    overflow: hidden;
    color: var(--ink);
}

.device__bar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.65rem 0.85rem;
    background: var(--navy);
    color: #e5e7eb;
    font-size: 0.82rem;
}

.device__bar span {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 50%;
    background: var(--navy-3);
}

.device__body { padding: 0.9rem; }

.caption {
    margin: 0.45rem 0 0;
    color: var(--muted);
    font-size: 0.82rem;
}

.band--ink .caption { color: #d1d5db; }

.due-list {
    display: grid;
    gap: 0.7rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.due {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    color: var(--ink);
}

.badge {
    align-self: start;
    border-radius: 999px;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    border: 1px solid var(--line);
    background: var(--paper);
    color: var(--ink);
}

.badge--overdue { border-color: #fecaca; color: var(--red); }
.badge--soon { border-color: #fde68a; color: var(--amber-text); }
.badge--next { border-color: #bfdbfe; color: #1d4ed8; }
.badge--done { border-color: #bbf7d0; color: var(--green-text); }

.due strong, .history strong { display: block; }

.due p, .history p { margin: 0.2rem 0 0; color: var(--muted); }

.stage picture,
.pair picture {
    display: block;
}

.hero-shot {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5), 0 6px 16px rgba(0, 0, 0, 0.35);
}

.shot {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    aspect-ratio: 1593 / 1034;
    object-fit: cover;
    background: var(--navy);
}

.shot--due {
    aspect-ratio: 1006 / 1069;
    object-fit: contain;
    background: #f4f6f9;
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5), 0 6px 16px rgba(0, 0, 0, 0.35);
}

.shot--step {
    aspect-ratio: 1038 / 1157;
    object-fit: contain;
    background: #f4f6f9;
    border: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(17, 24, 39, 0.14), 0 2px 6px rgba(17, 24, 39, 0.06);
}

.shot--project {
    aspect-ratio: 1038 / 1157;
    object-fit: contain;
    background: #0b1220;
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5), 0 6px 16px rgba(0, 0, 0, 0.35);
}

.pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.pair figure { margin: 0; }

@media (max-width: 560px) {
    .pair { grid-template-columns: 1fr; }
}

.history { padding: 1rem; color: var(--ink); }

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

.history dl {
    display: grid;
    grid-template-columns: 8rem 1fr;
    gap: 0.35rem 0.75rem;
    margin: 0.8rem 0 0;
}

.history dt { color: var(--muted); }
.history dd { margin: 0; }

.procedure {
    background: var(--navy);
    color: #f9fafb;
    border-radius: 28px;
    padding: 1rem;
    max-width: 22rem;
    margin: 0 auto;
    box-shadow: var(--shadow);
}

.procedure__safety {
    margin: 0 0 0.8rem;
    padding: 0.65rem 0.75rem;
    border-left: 3px solid var(--amber);
    background: var(--navy-2);
    border-radius: 0 10px 10px 0;
    font-size: 0.92rem;
}

.procedure__step {
    margin: 0.35rem 0;
    font-size: 1.2rem;
}

.diagram {
    display: grid;
    place-items: center;
    min-height: 7rem;
    margin: 0.8rem 0;
    border: 1px dashed rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    color: #d1d5db;
    text-align: center;
    padding: 0.75rem;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.chips li {
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 0.25rem 0.6rem;
    font-size: 0.85rem;
}

.pager {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    margin-top: 0.9rem;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.9rem;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: step;
}

.steps li {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1rem;
    color: var(--ink);
}

.steps li::before {
    counter-increment: step;
    content: counter(step);
    display: inline-grid;
    place-items: center;
    width: 1.7rem;
    height: 1.7rem;
    margin-bottom: 0.55rem;
    border-radius: 50%;
    background: var(--navy);
    color: #f9fafb;
    font-weight: 700;
    font-size: 0.85rem;
}

.steps h3 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.steps p { margin: 0; color: var(--muted); }

.also {
    margin: 1rem 0 0;
    padding-left: 1.1rem;
    color: var(--ink-soft);
}

.project { padding: 1.1rem; color: var(--ink); }

.progress {
    height: 0.55rem;
    margin: 0.7rem 0 0.35rem;
    background: var(--paper);
    border-radius: 999px;
    overflow: hidden;
}

.progress span {
    display: block;
    height: 100%;
    width: 57%;
    background: var(--blue-deep);
}

.project-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1rem;
    margin-top: 1rem;
}

.photos {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.photo {
    display: grid;
    place-items: center;
    min-height: 5.5rem;
    border-radius: 12px;
    background: var(--navy-2);
    color: #d1d5db;
    font-size: 0.85rem;
    text-align: center;
    padding: 0.5rem;
}

.uses {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.uses li {
    background: var(--navy-2);
    color: #f9fafb;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 0.9rem;
}

.trust-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.trust-list li {
    padding-left: 0.9rem;
    border-left: 3px solid var(--blue-soft);
}

.founder-photo {
    display: block;
    width: 100%;
    max-width: 40rem;
    height: auto;
    margin: 0 0 1rem;
    border-radius: 16px;
}

.founder {
    margin: 0;
    font-size: 1.08rem;
}

.close {
    background: var(--navy);
    color: #f9fafb;
    padding: 3.5rem 0;
}

.close h2 { margin: 0 0 0.4rem; font-size: clamp(1.8rem, 3vw, 2.4rem); }
.close p { margin: 0 0 1.2rem; color: #d1d5db; }

.close-notes {
    margin: 1.15rem 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.4rem;
    max-width: 36rem;
    color: #d1d5db;
    font-size: 0.95rem;
}

.close-notes strong { color: #f9fafb; }

.site-footer {
    background: #0b1220;
    color: #d1d5db;
    padding: 2.5rem 0 1.5rem;
}

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

.site-footer a { color: #e5e7eb; text-decoration: none; }
.site-footer a:hover { color: var(--white); }

.site-footer ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.35rem;
}

.site-footer p { margin: 0.4rem 0 0; }

.legal {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.92rem;
}

.page-hero { padding: 2.5rem 0 0.5rem; }
.page-hero h1 { margin: 0 0 0.6rem; font-size: clamp(2rem, 4vw, 2.8rem); max-width: 20ch; }
.page-hero p { margin: 0; max-width: 40rem; color: var(--ink-soft); font-size: 1.08rem; }

.prose { padding-bottom: 3rem; }
.prose h2 { margin: 2rem 0 0.4rem; font-size: 1.35rem; }
.prose p, .prose li { color: var(--ink-soft); }
.prose ul { padding-left: 1.15rem; }

.legal-page {
    width: min(42rem, 100%);
    margin: 0 auto;
    padding: 2.5rem 0 4rem;
}

.legal-page h1 { margin: 0 0 0.4rem; }
.legal-page h2 { margin: 1.75rem 0 0.4rem; font-size: 1.15rem; }
.legal-page p { color: var(--ink-soft); }

@media (max-width: 900px) {
    .hero__grid,
    .split,
    .project-grid,
    .footer-grid { grid-template-columns: 1fr; }

    .scatter,
    .cards,
    .steps,
    .uses { grid-template-columns: 1fr 1fr; }

    .js .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

    .js .site-nav {
        display: none;
        position: absolute;
        top: var(--header);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0.5rem 1rem 1rem;
        background: var(--navy);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .js .site-nav.is-open { display: flex; }

    .no-js .site-nav {
        position: static;
        display: flex;
    }

    .site-nav a,
    .nav-actions .btn {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .nav-actions {
        flex-direction: column;
        align-items: stretch;
        margin: 0.4rem 0 0;
    }
}

@media (max-width: 560px) {
    .scatter,
    .cards,
    .steps,
    .uses { grid-template-columns: 1fr; }

    .history dl { grid-template-columns: 1fr; }
    .hero { padding: 2.25rem 0 2.5rem; }
    .band { padding: 2.75rem 0; }
    .cta-row .btn { width: 100%; }
}

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