:root {
    --ob-primary: #022345;
    --ob-primary-hover: #033566;
    --ob-accent: #168f64;
    --ob-highlight: #a7e8c6;
    --ob-light-bg: #eaf7f0;
    --ob-page-bg: #ffffff;
    --ob-surface: #ffffff;
    --ob-border: #cde8dc;
    --ob-text: #1a202c;
    --ob-muted: #667085;
    --ob-ink-soft: rgba(2, 35, 69, .08);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    background: var(--ob-page-bg);
    color: var(--ob-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.55;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 1.25rem; }

.skiplink {
    position: absolute; left: -9999px; top: 0;
    background: var(--ob-primary); color: #fff; padding: .5rem 1rem; z-index: 30;
}
.skiplink:focus { left: 0; }

a { color: var(--ob-primary); text-underline-offset: 2px; }
a:hover { color: var(--ob-accent); }

:focus-visible { outline: 3px solid var(--ob-highlight); outline-offset: 2px; }

.site-header {
    background: var(--ob-page-bg);
    border-bottom: 1px solid var(--ob-border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: .85rem 1.25rem; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--ob-text); }
.mark { width: 24px; height: 24px; }
.mark rect { fill: var(--ob-primary); }
.mark rect:first-child { fill: var(--ob-accent); }
.mark rect:nth-child(2) { fill: var(--ob-highlight); }
.wordmark { font-weight: 800; letter-spacing: .01em; font-size: 1.1rem; }
.site-nav { display: flex; gap: 1.3rem; align-items: center; }
.site-nav a { text-decoration: none; color: var(--ob-text); font-weight: 500; font-size: .95rem; }
.site-nav a:hover { color: var(--ob-primary); }
.site-nav a[aria-current="page"] { color: var(--ob-primary); border-bottom: 2px solid var(--ob-accent); }
.site-nav .nav-cta {
    background: var(--ob-accent); color: #fff; border-radius: 999px;
    padding: .45rem 1.1rem; font-weight: 700;
}
.site-nav .nav-cta:hover { background: var(--ob-primary); color: #fff; }
.nav-toggle {
    display: none; font: inherit; color: var(--ob-text); background: none;
    border: 1px solid var(--ob-border); border-radius: 6px; padding: .4rem .8rem;
}

@media (max-width: 720px) {
    .nav-toggle { display: block; }
    .site-nav {
        display: none; position: absolute; right: 1rem; top: 3.4rem; flex-direction: column;
        align-items: stretch; background: var(--ob-surface); border: 1px solid var(--ob-border);
        border-radius: 10px; padding: .75rem 1.1rem; box-shadow: 0 10px 30px rgba(11, 31, 51, .18); z-index: 20;
    }
    .site-nav.open { display: flex; }
    .site-nav a { color: var(--ob-text); }
    .site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ob-primary); }
    .site-nav .nav-cta { text-align: center; margin-top: .25rem; }
    .header-inner { position: relative; }
}

.hero {
    background: var(--ob-surface);
    border-bottom: 1px solid var(--ob-border);
    color: var(--ob-text); padding: 4rem 0 3rem;
}
.hero-stack { display: grid; gap: 1.75rem; }
.kicker {
    margin: 0 0 .6rem; font-size: .8rem; font-weight: 700; letter-spacing: .14em;
    text-transform: uppercase; color: var(--ob-accent);
}
.hero h1 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(2rem, 5vw, 3.25rem); margin: 0 0 .8rem; line-height: 1.1; color: var(--ob-primary); }
.tagline { max-width: 42rem; color: var(--ob-muted); font-size: 1.1rem; margin: 0 0 1.5rem; }
.pills { list-style: none; margin: 0; padding: 0; display: flex; gap: .55rem; flex-wrap: wrap; }
.pills li {
    border: 1px solid var(--ob-border); border-radius: 999px; padding: .35rem 1rem;
    font-size: .85rem; color: var(--ob-text); background: var(--ob-light-bg); font-weight: 500;
}
.hero-panel {
    background: var(--ob-surface); color: var(--ob-text); border: 1px solid var(--ob-border);
    border-top: 4px solid var(--ob-accent); border-radius: 12px;
    padding: 1.4rem 1.5rem; box-shadow: 0 18px 50px var(--ob-ink-soft);
}
.hero-panel-title { margin: 0 0 1rem; font-size: 1.05rem; font-family: Georgia, serif; color: var(--ob-primary); }

.converter .conv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.conv-field { display: grid; gap: .35rem; font-weight: 600; font-size: .85rem; color: var(--ob-muted); }
.conv-field input, .conv-field select {
    font: inherit; padding: .6rem .7rem; border: 1px solid var(--ob-border);
    border-radius: 8px; background: #fff; color: var(--ob-text); width: 100%;
}
.conv-field input:focus, .conv-field select:focus { border-color: var(--ob-accent); outline: 3px solid var(--ob-ink-soft); }
.conv-result { grid-column: 1 / -1; padding-top: .3rem; }
.conv-out { display: block; font-size: clamp(1.6rem, 4vw, 2.3rem); font-weight: 800; color: var(--ob-primary); font-variant-numeric: tabular-nums; }
.conv-note { display: block; font-size: .82rem; color: var(--ob-muted); margin-top: .2rem; }
.hero-panel .conv-grid { grid-template-columns: minmax(160px, .8fr) minmax(220px, 1fr) minmax(260px, 1.2fr); align-items: end; }
.hero-panel .conv-result { grid-column: auto; padding-top: 0; }
.hero-panel .conv-out { font-size: clamp(1.5rem, 3vw, 2.1rem); }

.buy-heading { margin: 1.25rem 0 .5rem; font-size: .85rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ob-muted); }
.buy-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: .7rem; }
.buy-card { background: var(--ob-light-bg); border: 1px solid var(--ob-border); border-radius: 10px; padding: .8rem .9rem; }
.buy-qty { margin: 0; font-size: 1.25rem; font-weight: 800; color: var(--ob-accent); font-variant-numeric: tabular-nums; }
.buy-label { margin: .15rem 0 .3rem; font-weight: 600; font-size: .9rem; }
.buy-card .fine { margin: 0; }

.section-block { margin: 3rem 0; }
.section-block h2, .subhead { font-family: Georgia, serif; color: var(--ob-primary); }
.grid { display: grid; gap: 1rem; }
.cols-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cols-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card {
    display: block; background: var(--ob-surface); border: 1px solid var(--ob-border);
    border-radius: 12px; padding: 1.2rem 1.3rem; text-decoration: none; color: var(--ob-text);
}
.card h3 { margin: 0 0 .4rem; color: var(--ob-primary); }
.card p { margin: 0; color: var(--ob-muted); font-size: .95rem; }
a.card:hover { border-color: var(--ob-accent); box-shadow: 0 6px 18px var(--ob-ink-soft); }
.card.mini .mini-board { margin: .5rem 0 .75rem; }
.mini-board { padding-left: 0; list-style: none; }
.mini-board li { padding: .3rem 0; border-bottom: 1px solid var(--ob-border); font-size: .93rem; }
.mini-board .rank { display: inline-block; min-width: 1.6rem; font-weight: 800; color: var(--ob-accent); }
.mini-board .num { font-variant-numeric: tabular-nums; float: right; font-weight: 600; }

.trust { margin: 3rem 0; }
.trust-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem;
    background: var(--ob-primary); color: #fff; border-radius: 14px; padding: 1.6rem;
}
.trust-item strong { color: var(--ob-highlight); display: block; margin-bottom: .3rem; }
.trust-item p { margin: 0; color: rgba(255, 255, 255, .78); font-size: .92rem; }

.page { padding: 2rem 1.25rem 3rem; }
.crumbs ol { list-style: none; display: flex; gap: .5rem; padding: 0; margin: 0 0 1rem; font-size: .88rem; flex-wrap: wrap; }
.crumbs li + li::before { content: "/"; margin-right: .5rem; color: var(--ob-muted); }
.crumbs a { color: var(--ob-muted); }
h1 { font-family: Georgia, serif; margin: 0 0 .5rem; color: var(--ob-primary); }
.lede { color: var(--ob-muted); max-width: 48rem; }
.badges { display: flex; gap: .5rem; flex-wrap: wrap; margin: 1rem 0; }
.badge { background: var(--ob-surface); border: 1px solid var(--ob-border); border-radius: 999px; padding: .2rem .8rem; font-size: .82rem; }
.method-note { font-size: .9rem; color: var(--ob-muted); }
.rank-note { font-size: .9rem; border-left: 3px solid var(--ob-highlight); padding-left: .75rem; color: var(--ob-muted); }

.filters {
    display: flex; gap: 1rem; align-items: end; flex-wrap: wrap;
    background: var(--ob-surface); border: 1px solid var(--ob-border); border-radius: 10px;
    padding: 1rem; margin: 1.5rem 0;
}
.filters label { display: flex; flex-direction: column; gap: .3rem; font-weight: 600; font-size: .9rem; }
.filters input, .filters select {
    font: inherit; padding: .45rem .6rem; border: 1px solid var(--ob-border);
    border-radius: 6px; background: #fff; min-width: 12rem;
}
.filters .clear { align-self: center; }

button, .filters button {
    font: inherit; font-weight: 600; cursor: pointer;
    background: var(--ob-primary); color: #fff; border: 0; border-radius: 6px; padding: .6rem 1.1rem;
}
button:hover { background: var(--ob-primary-hover); }
button.secondary { background: var(--ob-surface); color: var(--ob-primary); border: 1px solid var(--ob-border); }
button.secondary:hover { background: var(--ob-primary); color: #fff; }
button.danger { background: #b3382e; }
button.danger:hover { background: #8f2a22; }

.table-scroll { overflow-x: auto; }
table.board { width: 100%; border-collapse: collapse; background: var(--ob-surface); border: 1px solid var(--ob-border); }
.board th, .board td { padding: .55rem .75rem; border-bottom: 1px solid var(--ob-border); text-align: left; vertical-align: top; }
.board thead th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ob-muted); border-bottom: 2px solid var(--ob-primary); white-space: nowrap; }
.board tbody tr:hover { background: var(--ob-page-bg); }
.board td.num, .board th.num { text-align: right; font-variant-numeric: tabular-nums; }
.board .rank { font-weight: 800; color: var(--ob-primary); }
.board .metric { font-weight: 700; }
.row-link { font-size: .8rem; font-weight: 400; }
.count { color: var(--ob-muted); font-size: .9rem; }
table.status td { font-size: .9rem; }

.pager { display: flex; gap: 1.25rem; align-items: center; margin: 1.25rem 0; }
.csv-link { font-weight: 600; }

.notice {
    background: var(--ob-surface); border: 1px solid var(--ob-border);
    border-left: 4px solid var(--ob-accent); border-radius: 10px; padding: 1.25rem 1.5rem; margin: 1.5rem 0;
}
.notice h2, .notice h3 { margin-top: 0; }
.empty { color: var(--ob-muted); }
.fine { color: var(--ob-muted); font-size: .85rem; }

.hub-list, .state-list { list-style: none; padding: 0; }
.hub-list li { padding: .6rem 0; border-bottom: 1px solid var(--ob-border); }
.hub-list a { font-weight: 600; }
.state-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .4rem 1rem; }
.state-list a { font-weight: 600; }

.stat-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .8rem; margin: 1.5rem 0; }
.stat, .card.stat { background: var(--ob-surface); border: 1px solid var(--ob-border); border-radius: 10px; padding: 1rem 1.1rem; }
.stat-label { display: block; font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--ob-muted); }
.stat-value { display: block; font-size: 1.5rem; font-weight: 800; color: var(--ob-primary); font-variant-numeric: tabular-nums; margin: .2rem 0 0; }
.card.stat .stat-value { margin-top: .3rem; }

.house-tool { background: var(--ob-surface); border: 1px solid var(--ob-border); border-radius: 12px; padding: 1.4rem; margin: 1.5rem 0; }
.house-tool .conv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: .9rem; }
.score-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .8rem;
    margin: 1.25rem 0 0; padding: 0;
}
.score-cell { background: var(--ob-page-bg); border: 1px solid var(--ob-border); border-radius: 10px; padding: .9rem 1rem; }
.score-cell dt { font-size: .78rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--ob-muted); }
.score-cell dd { margin: .25rem 0 0; font-size: 1.35rem; font-weight: 800; color: var(--ob-primary); font-variant-numeric: tabular-nums; }
.score-cell dd.fine { font-size: .8rem; font-weight: 400; color: var(--ob-muted); }

.prose { max-width: 48rem; }
.prose h2 { font-family: Georgia, serif; margin-top: 2rem; color: var(--ob-primary); }
.prose pre { background: var(--ob-surface); border: 1px solid var(--ob-border); border-radius: 8px; padding: .9rem 1rem; overflow-x: auto; }
.prose code { font-family: ui-monospace, Consolas, "Courier New", monospace; font-size: .9em; }
.prose table { width: 100%; border-collapse: collapse; }
.prose th, .prose td { padding: .5rem .7rem; border-bottom: 1px solid var(--ob-border); text-align: left; }
.prose blockquote { border-left: 3px solid var(--ob-accent); margin: 1rem 0; padding: .2rem 0 .2rem 1rem; color: var(--ob-muted); }

.admin-shell { display: grid; grid-template-columns: 210px 1fr; gap: 2rem; align-items: start; }
.admin-side {
    position: sticky; top: 1rem; background: var(--ob-primary); color: #fff;
    border-radius: 12px; padding: 1.1rem;
}
.admin-side .admin-eyebrow { color: var(--ob-highlight); }
.admin-side .fine a { color: rgba(255, 255, 255, .75); }
.admin-nav { display: grid; gap: .15rem; margin-bottom: 1rem; }
.admin-nav a {
    color: rgba(255, 255, 255, .82); text-decoration: none; padding: .45rem .7rem;
    border-radius: 7px; font-weight: 500; font-size: .95rem;
}
.admin-nav a:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.admin-nav a[aria-current="page"] { background: var(--ob-accent); color: #fff; }
.admin-logout button { width: 100%; }
.admin-top { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; }
.admin-main { min-width: 0; }

.admin-auth { min-height: calc(100vh - 200px); display: grid; place-items: center; padding-block: 3rem; }
.admin-auth-card {
    width: min(100%, 440px); background: var(--ob-surface); border: 1px solid var(--ob-border);
    border-radius: 16px; padding: clamp(1.4rem, 4vw, 2.25rem); box-shadow: 0 18px 50px var(--ob-ink-soft);
}
.admin-eyebrow { margin: 0 0 .35rem; font-size: .75rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--ob-accent); }
.admin-auth-card h1 { font-size: 1.55rem; margin: 0 0 .5rem; }
.admin-intro { color: var(--ob-muted); margin: 0 0 1.25rem; font-size: .95rem; }
.admin-card {
    background: var(--ob-surface); border: 1px solid var(--ob-border); border-radius: 14px;
    padding: 1.5rem; margin: 1.25rem 0; box-shadow: 0 8px 24px var(--ob-ink-soft);
    display: grid; gap: 1rem;
}
.admin-card h2 { margin: 0 0 .35rem; font-family: Georgia, serif; color: var(--ob-primary); }
.admin-card > p:first-of-type { margin-top: 0; }
.admin-form, .admin-field-grid { display: grid; gap: 1rem; }
.admin-field-grid { grid-template-columns: 1fr 1fr; }
.admin-field-wide { grid-column: 1 / -1; }
.admin-form label { display: grid; gap: .35rem; font-weight: 600; font-size: .92rem; }
.admin-form label.inline { display: inline-flex; align-items: center; gap: .45rem; font-weight: 400; }
.admin-form input[type="text"], .admin-form input[type="password"], .admin-form input[type="email"],
.admin-form input[type="url"], .admin-form input:not([type]), .admin-form textarea, .admin-form select {
    display: block; width: 100%; min-height: 44px; font: inherit; padding: .65rem .75rem;
    border: 1px solid var(--ob-border); border-radius: 8px; background: #fff; color: var(--ob-text);
}
.admin-form textarea { min-height: 5.5rem; resize: vertical; }
.admin-form textarea.tall { min-height: 14rem; font-family: ui-monospace, Consolas, monospace; font-size: .9rem; }
.admin-form input[type="file"] {
    display: block; width: 100%; font: inherit; padding: .6rem .75rem;
    border: 1px dashed var(--ob-border); border-radius: 8px; background: var(--ob-page-bg);
}
.admin-form input[type="checkbox"] { width: auto; }
.admin-form input:focus, .admin-form textarea:focus, .admin-form select:focus {
    border-color: var(--ob-accent); box-shadow: 0 0 0 3px var(--ob-ink-soft); outline: none;
}
.admin-auth-form button { width: 100%; min-height: 44px; }
.color-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .9rem; }
.color-field {
    display: grid; gap: .4rem; font-weight: 600; font-size: .85rem;
    background: var(--ob-page-bg); border: 1px solid var(--ob-border); border-radius: 10px; padding: .7rem .8rem;
}
.color-field input[type="color"] { width: 100%; height: 44px; padding: .15rem; border: 1px solid var(--ob-border); border-radius: 8px; background: #fff; }
.icon-preview { display: flex; align-items: center; gap: .7rem; color: var(--ob-muted); font-size: .9rem; }
.icon-preview img { display: block; border: 1px solid var(--ob-border); border-radius: 8px; padding: .25rem; background: #fff; }
.status-pill {
    display: inline-block; font-size: .78rem; font-weight: 700; border: 1px solid var(--ob-border);
    border-radius: 999px; padding: .15rem .7rem; color: var(--ob-muted); background: var(--ob-surface); vertical-align: middle;
}
.status-pill.status-ok { color: #fff; background: var(--ob-accent); border-color: var(--ob-accent); }
.status-pill.status-bad { color: #9f1239; background: #fff1f2; border-color: #fecdd3; }
.upload-actions { justify-content: space-between; align-items: center; flex-wrap: wrap; }
.upload-actions button { min-width: 14rem; }
.upload-actions p { margin: 0; flex: 1 1 22rem; }
.admin-message {
    background: #eafaf3; border: 1px solid var(--ob-accent); border-radius: 8px;
    padding: .8rem 1rem; margin: 1rem 0;
}
.admin-actions { display: flex; gap: 1rem; align-items: center; }
.admin-savebar {
    position: sticky; bottom: 0; background: rgba(255, 255, 255, .94); backdrop-filter: blur(6px);
    border: 1px solid var(--ob-border); border-radius: 12px; padding: .8rem 1rem; margin-top: 1.25rem;
}
.admin-new { font-weight: 700; }
.admin-danger { margin: 1rem 0; }

.site-footer { border-top: 1px solid var(--ob-border); margin-top: 3rem; padding: 2rem 0 3rem; }
.foot-brand { margin: 0 0 .5rem; }
.foot-brand .brand { color: var(--ob-primary); }
.site-footer p { margin: .4rem 0; max-width: 48rem; }

@media (max-width: 860px) {
    .hero-grid { grid-template-columns: 1fr; }
    .admin-shell { grid-template-columns: 1fr; }
    .admin-side { position: static; }
    .admin-nav { grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); }
}

@media (max-width: 640px) {
    .admin-top { flex-direction: column; align-items: stretch; }
    .admin-field-grid { grid-template-columns: 1fr; }
    .admin-field-wide { grid-column: auto; }
    .admin-savebar { position: static; }
    .converter .conv-grid { grid-template-columns: 1fr; }
    .filters { flex-direction: column; align-items: stretch; }
    .filters input, .filters select { min-width: 0; }
    .hero { padding: 2.5rem 0 2rem; }
}