:root {
    color-scheme: light;
    --ink: #111317;
    --ink-soft: #4b5058;
    --paper: #f5f3ef;
    --surface: #ffffff;
    --surface-dark: #0b0d10;
    --surface-dark-2: #171a20;
    --line: #d9d6d0;
    --line-dark: #2a2f38;
    --accent: #d8322f;
    --accent-dark: #a71f1d;
    --success: #1f7a50;
    --warning: #a86b16;
    --danger: #a92d2d;
    --radius-sm: 10px;
    --radius: 18px;
    --radius-lg: 30px;
    --shadow: 0 18px 50px rgba(16, 18, 22, .08);
    --container: 1200px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
    text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    min-width: 320px;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration-color: rgba(216, 50, 47, .45); text-underline-offset: .18em; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.container {
    width: min(var(--container), calc(100% - 2.25rem));
    margin-inline: auto;
}
.narrow { width: min(760px, calc(100% - 2rem)); margin-inline: auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(11, 13, 16, .96);
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.08);
    backdrop-filter: blur(14px);
}
.header-inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: .72rem;
    color: #fff;
    font-weight: 850;
    letter-spacing: -.035em;
    text-decoration: none;
    font-size: 1.25rem;
}
.brand-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: var(--accent);
    color: #fff;
    font-size: .79rem;
    letter-spacing: .05em;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.12);
}
.brand-dot { color: #aeb4bf; font-weight: 700; }
.desktop-nav { display: flex; align-items: center; gap: 1.35rem; }
.desktop-nav a,
.nav-button {
    color: #dce0e7;
    text-decoration: none;
    font-size: .94rem;
    font-weight: 650;
    transition: color .18s ease, background .18s ease;
}
.desktop-nav a:hover,
.nav-button:hover { color: #fff; }
.nav-form { display: inline; margin: 0; }
.nav-button { border: 0; background: transparent; padding: 0; }
.desktop-nav .nav-join {
    padding: .62rem .94rem;
    border-radius: 999px;
    color: #fff;
    background: var(--accent);
}
.desktop-nav .nav-join:hover { background: #e2423f; }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary {
    list-style: none;
    border: 1px solid var(--line-dark);
    border-radius: 999px;
    padding: .48rem .8rem;
    font-weight: 700;
    cursor: pointer;
}
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu nav {
    position: absolute;
    right: 0;
    top: calc(100% + .7rem);
    min-width: 220px;
    padding: .6rem;
    border: 1px solid var(--line-dark);
    border-radius: 16px;
    background: #11151a;
    box-shadow: 0 24px 60px rgba(0,0,0,.35);
    display: grid;
}
.mobile-menu a,
.mobile-menu button {
    display: block;
    width: 100%;
    padding: .78rem .85rem;
    color: #fff;
    border: 0;
    border-radius: 10px;
    background: transparent;
    text-decoration: none;
    text-align: left;
}
.mobile-menu a:hover,
.mobile-menu button:hover { background: rgba(255,255,255,.07); }

.flash-wrap { padding-top: 1rem; }
.notice {
    padding: 1rem 1.15rem;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: 0 8px 24px rgba(15,18,22,.04);
}
.notice + .notice { margin-top: .7rem; }
.notice.success { border-color: rgba(31,122,80,.35); background: #f1faf5; }
.notice.error { border-color: rgba(169,45,45,.35); background: #fff5f4; }
.notice ul { margin: .55rem 0 0; padding-left: 1.2rem; }

.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 76% 15%, rgba(216,50,47,.24), transparent 28%),
        linear-gradient(135deg, #0b0d10 0%, #141820 64%, #0b0d10 100%);
    color: #fff;
    padding: clamp(5rem, 9vw, 8.5rem) 0 clamp(4.5rem, 8vw, 7.5rem);
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .24;
    background-image:
        linear-gradient(90deg, transparent 49.8%, rgba(255,255,255,.07) 50%, transparent 50.2%),
        linear-gradient(0deg, transparent 49.8%, rgba(255,255,255,.05) 50%, transparent 50.2%);
    background-size: 80px 80px;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,.75), transparent);
}
.hero-inner { position: relative; max-width: 930px; }
.eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: .18em;
    font-size: .74rem;
    font-weight: 850;
    color: var(--accent);
}
.hero .eyebrow { color: #ff6c67; }
.hero h1 {
    margin: .55rem 0 1.25rem;
    max-width: 13ch;
    font-size: clamp(3.3rem, 9vw, 7.6rem);
    line-height: .88;
    letter-spacing: -.065em;
    font-weight: 900;
}
.hero .lead,
.lede {
    max-width: 64ch;
    font-size: clamp(1.06rem, 2vw, 1.28rem);
    color: #c7ccd4;
}
.lede { color: var(--ink-soft); }
.actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 2rem; }

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: .78rem 1.15rem;
    border: 1px solid transparent;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 800;
    transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--accent); color: #fff; }
.button-primary:hover { background: #e3423f; }
.button-secondary { background: var(--surface-dark-2); color: #fff; border-color: #343945; }
.button-light { background: #fff; color: var(--ink); }
.button-ghost { background: transparent; color: inherit; border-color: currentColor; opacity: .9; }
.button-danger { background: #982b29; color: #fff; }
.button-small { min-height: 36px; padding: .48rem .78rem; font-size: .84rem; }

.stats-strip {
    position: relative;
    margin-top: -2.3rem;
    z-index: 5;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.stat { padding: 1.5rem 1.6rem; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat strong { display: block; font-size: clamp(1.7rem, 3vw, 2.5rem); line-height: 1; letter-spacing: -.045em; }
.stat span { display: block; margin-top: .5rem; color: var(--ink-soft); font-size: .86rem; }

.section { padding: clamp(3.8rem, 7vw, 6.5rem) 0; }
.section-dark { background: var(--surface-dark); color: #fff; }
.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.section-head h2,
.content-page h1,
.auth-panel h1 {
    margin: .3rem 0 0;
    font-size: clamp(2rem, 5vw, 4.2rem);
    line-height: .98;
    letter-spacing: -.055em;
}
.section-head p { max-width: 50ch; color: var(--ink-soft); margin: 0; }
.section-dark .section-head p { color: #aeb5c0; }

.card-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem; }
.vehicle-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: 0 10px 30px rgba(15,18,22,.045);
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease;
}
.vehicle-card:hover { transform: translateY(-3px); box-shadow: 0 22px 50px rgba(15,18,22,.11); }
.vehicle-card-image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background:
        linear-gradient(150deg, #252a32, #0d0f12 68%),
        #12151a;
    display: grid;
    place-items: center;
    color: #69717e;
}
.vehicle-card-image img { width: 100%; height: 100%; object-fit: cover; }
.vehicle-placeholder { font-weight: 900; font-size: 2.4rem; letter-spacing: -.06em; opacity: .38; }
.vehicle-card-body { padding: 1rem 1rem 1.15rem; }
.vehicle-card-body h3 { margin: .2rem 0 .4rem; font-size: 1.12rem; letter-spacing: -.025em; }
.vehicle-card-body p { margin: 0; color: var(--ink-soft); font-size: .88rem; }
.card-kicker { color: var(--accent); font-weight: 800; font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; }

.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.principle-card {
    border: 1px solid #2a2e36;
    border-radius: var(--radius);
    padding: 1.4rem;
    background: #111419;
}
.principle-card strong { display: block; font-size: 1.08rem; margin-bottom: .45rem; }
.principle-card p { color: #aeb4bf; margin: 0; }

.auth-shell {
    min-height: calc(100vh - 160px);
    display: grid;
    place-items: start center;
    padding: clamp(3rem, 7vw, 6rem) 1rem;
    background:
        radial-gradient(circle at 15% 10%, rgba(216,50,47,.08), transparent 25%),
        var(--paper);
}
.auth-panel {
    width: min(560px, 100%);
    padding: clamp(1.5rem, 4vw, 2.4rem);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow);
}
.auth-panel-wide { width: min(680px, 100%); }
.auth-links { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.2rem; font-size: .92rem; }
.form-note { color: var(--ink-soft); margin-bottom: 0; }

.form-stack { display: grid; gap: 1.05rem; margin-top: 1.7rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1rem; }
label { display: grid; gap: .42rem; font-size: .88rem; font-weight: 760; }
label small { color: var(--ink-soft); font-weight: 450; }
input,
select,
textarea {
    width: 100%;
    min-height: 48px;
    padding: .72rem .82rem;
    border: 1px solid #bdbab4;
    border-radius: 12px;
    background: #fff;
    color: var(--ink);
    outline: 0;
    transition: border-color .15s ease, box-shadow .15s ease;
}
input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(216,50,47,.10);
}
input[type="file"] { padding: .55rem; }
.check-row { display: flex; align-items: flex-start; gap: .65rem; font-weight: 540; }
.check-row input { width: 18px; min-height: 18px; height: 18px; margin-top: .15rem; }

.content-page { width: min(920px, calc(100% - 2rem)); margin: 0 auto; padding: clamp(3.2rem, 7vw, 6rem) 0; }
.prose { font-size: 1.02rem; }
.prose h2 { margin-top: 2.2rem; font-size: 1.45rem; letter-spacing: -.025em; }
.prose p, .prose li { color: #3f444b; max-width: 75ch; }
.muted { color: var(--ink-soft); }

.registry-hero {
    padding: clamp(3.2rem, 7vw, 6rem) 0 2.5rem;
    background: #fff;
    border-bottom: 1px solid var(--line);
}
.registry-hero h1 { margin: .35rem 0 1rem; font-size: clamp(2.7rem, 7vw, 6rem); line-height: .9; letter-spacing: -.065em; }
.registry-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin: 1.4rem 0 2rem; }
.registry-list { padding: 2.5rem 0 5rem; }
.pagination-wrap { margin-top: 2rem; }

.vehicle-hero {
    background: var(--surface-dark);
    color: #fff;
}
.vehicle-hero-grid {
    display: grid;
    grid-template-columns: minmax(0,1.25fr) minmax(320px,.75fr);
    min-height: 560px;
}
.vehicle-hero-image {
    min-height: 500px;
    background: linear-gradient(145deg,#252a32,#0d0f12 65%);
    overflow: hidden;
}
.vehicle-hero-image img { width: 100%; height: 100%; object-fit: cover; }
.vehicle-hero-info { padding: clamp(2rem,5vw,4.5rem); display: flex; flex-direction: column; justify-content: center; }
.vehicle-hero-info h1 { margin: .4rem 0 1rem; font-size: clamp(2.5rem,5.6vw,5.5rem); line-height: .9; letter-spacing: -.06em; }
.registry-id { color: #8f98a5; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82rem; }
.vehicle-meta { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1rem 0 0; }
.badge {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: .35rem .65rem;
    border-radius: 999px;
    border: 1px solid #343a45;
    color: #d6dae0;
    font-size: .78rem;
    font-weight: 760;
}
.badge-accent { border-color: rgba(216,50,47,.65); background: rgba(216,50,47,.16); color: #ff8783; }
.vehicle-content { padding: clamp(3rem,6vw,5.5rem) 0; }
.vehicle-content-grid { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(300px,.65fr); gap: 2rem; }
.info-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; }
.info-panel + .info-panel { margin-top: 1rem; }
.info-panel h2 { margin-top: 0; letter-spacing: -.035em; }
.spec-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .9rem; }
.spec { border-top: 1px solid var(--line); padding-top: .75rem; }
.spec span { display: block; color: var(--ink-soft); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.spec strong { display: block; margin-top: .18rem; }
.timeline { display: grid; gap: .8rem; }
.timeline-item { border-left: 2px solid var(--line); padding: .2rem 0 .7rem 1rem; }
.timeline-item time { color: var(--ink-soft); font-size: .78rem; }
.timeline-item p { margin: .2rem 0 0; }
.gallery-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: .75rem; }
.gallery-grid img { border-radius: 12px; aspect-ratio: 4/3; object-fit: cover; width:100%; }

.dashboard-hero { padding: 3rem 0 1.5rem; }
.dashboard-grid { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(300px,.75fr); gap: 1.25rem; padding-bottom: 5rem; }
.dashboard-card { background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:1.25rem; }
.dashboard-card h2 { margin-top:0; }
.row-list { display:grid; gap:.7rem; }
.row-card { display:flex; justify-content:space-between; gap:1rem; align-items:center; border:1px solid var(--line); border-radius:14px; padding:.85rem; background:#fff; }
.row-card h3 { margin:0; font-size:1rem; }
.row-card p { margin:.2rem 0 0; color:var(--ink-soft); font-size:.84rem; }
.row-actions { display:flex; flex-wrap:wrap; gap:.45rem; justify-content:flex-end; }

.moderation-shell { padding: 3rem 0 6rem; }
.moderation-grid { display:grid; gap:1.5rem; }
.moderation-section { background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:1.25rem; }
.moderation-item { display:grid; grid-template-columns:1fr auto; gap:1rem; align-items:center; padding:1rem 0; border-top:1px solid var(--line); }
.moderation-item:first-of-type { border-top:0; }
.review-image { max-width:340px; border-radius:12px; border:1px solid var(--line); }

.empty-state {
    padding: 2.2rem;
    border: 1px dashed #bdb9b2;
    border-radius: var(--radius);
    text-align: center;
    color: var(--ink-soft);
    background: rgba(255,255,255,.5);
}

.site-footer {
    background: var(--surface-dark);
    color: #aab1bd;
    padding: 3.5rem 0 2rem;
    border-top: 1px solid #22262d;
}
.footer-grid { display:flex; justify-content:space-between; gap:2rem; }
.footer-brand { margin-bottom:.8rem; }
.footer-grid p { margin:.5rem 0 0; }
.footer-links { display:grid; grid-template-columns:repeat(2,auto); gap:.65rem 1.5rem; align-content:start; }
.footer-links a { color:#dce0e6; text-decoration:none; }
.footer-legal { border-top:1px solid #242930; margin-top:2rem; padding-top:1.3rem; font-size:.8rem; }

@media (max-width: 980px) {
    .desktop-nav { display: none; }
    .mobile-menu { display: block; }
    .card-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .principle-grid { grid-template-columns: 1fr; }
    .vehicle-hero-grid,
    .vehicle-content-grid,
    .dashboard-grid { grid-template-columns: 1fr; }
    .vehicle-hero-image { min-height: 55vw; }
    .vehicle-hero-info { padding: 2rem 1.25rem 2.6rem; }
}

@media (max-width: 720px) {
    .container { width: min(var(--container), calc(100% - 1.2rem)); }
    .header-inner { min-height: 64px; }
    .brand { font-size: 1.08rem; }
    .brand-mark { width: 34px; height: 34px; }
    .hero { padding-top: 4rem; }
    .hero h1 { font-size: clamp(3rem,17vw,5rem); }
    .stats-grid { grid-template-columns: repeat(2,1fr); }
    .stat:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
    .stat:nth-child(4) { border-top: 1px solid var(--line); }
    .card-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .section-head,
    .registry-toolbar,
    .footer-grid { align-items:flex-start; flex-direction:column; }
    .spec-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; }
    .auth-links { flex-direction:column; }
    .row-card,
    .moderation-item { align-items:flex-start; grid-template-columns:1fr; display:grid; }
    .row-actions { justify-content:flex-start; }
    .footer-links { grid-template-columns:1fr; }
}

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