/* Permanent-QR cylinder page (Pages/Cylinder.cshtml). Mobile first; centred column on wider screens. */
:root {
    --ground: #F3F4F1;
    --card: #FFFFFF;
    --ink: #15201B;
    --muted: #5B6660;
    --line: #E1E4DF;
    --hair: #EEF0EC;
    --accent: #0B5C8A;
    --ok-bg: #E7F0F6; --ok-line: #CFE0EC; --ok-title: #0B3F5E; --ok-text: #31566E;
    --warn-bg: #FFF3E6; --warn-line: #F2D6B5; --warn-title: #6B3A08; --warn-text: #7A4A17; --warn: #8A4B0B;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--ground); }
body { font-family: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif; color: var(--ink); -webkit-text-size-adjust: 100%; }
a { color: var(--accent); } a:hover { color: #08466A; }
.mono { font-family: 'IBM Plex Mono', ui-monospace, Consolas, monospace; }

.page { max-width: 520px; margin: 0 auto; min-height: 100vh; background: var(--ground); display: flex; flex-direction: column; }
@media (min-width: 560px) { .page { box-shadow: 0 0 0 1px var(--line); } }

.topbar { background: var(--card); border-bottom: 1px solid var(--line); padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo { height: 40px; width: auto; display: block; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); text-align: right; }

.hero { background: var(--ink); color: #fff; padding: 24px 20px 22px; display: flex; flex-direction: column; gap: 12px; }
.hero-label { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: #B8C2BD; }
.hero-code { margin: -8px 0 0; font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 34px; font-weight: 600; letter-spacing: 0.01em; line-height: 1.2; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: #2C3A33; color: #fff; border-radius: 999px; padding: 6px 12px; font-size: 14px; font-weight: 500; }
.chip-accent { background: var(--accent); font-weight: 600; }

.band { padding: 14px 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid; }
.band-icon { width: 22px; height: 22px; flex: none; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.band-title { font-size: 15px; font-weight: 600; }
.band-sub { font-size: 13px; margin-top: 2px; }
.band-ok { background: var(--ok-bg); border-color: var(--ok-line); }
.band-ok .band-icon { stroke: var(--accent); } .band-ok .band-title { color: var(--ok-title); } .band-ok .band-sub { color: var(--ok-text); }
.band-warn { background: var(--warn-bg); border-color: var(--warn-line); }
.band-warn .band-icon { stroke: var(--warn); } .band-warn .band-title { color: var(--warn-title); } .band-warn .band-sub { color: var(--warn-text); }

.cards { padding: 16px 16px 8px; display: flex; flex-direction: column; gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.card h2 { margin: 0; font-size: 13px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.label { font-size: 12px; color: var(--muted); }
.value { font-size: 17px; font-weight: 600; margin-top: 3px; }
.value-warn { color: var(--warn-title); font-size: 15px; }
.muted { color: var(--muted); }
.pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }

.weights { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.weight { background: var(--ground); border-radius: 8px; padding: 10px 10px 12px; display: flex; flex-direction: column; gap: 4px; }
.weight .num { font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 20px; font-weight: 600; }
.weight-dark { background: var(--ink); color: #fff; }
.weight-dark .label { color: #B8C2BD; }

.bar { height: 8px; background: var(--line); border-radius: 999px; overflow: hidden; }
.bar-fill { height: 8px; background: var(--accent); }
.bar-warn { background: var(--warn); }
.note { font-size: 13px; color: var(--ok-text); margin-top: -4px; }
.note-warn { color: var(--warn-title); font-weight: 600; }

.facts { margin: -6px 0 0; display: flex; flex-direction: column; }
.facts > div { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--hair); }
.facts > div:last-child { border-bottom: 0; }
.facts dt { font-size: 14px; color: var(--muted); }
.facts dd { margin: 0; font-size: 15px; font-weight: 500; text-align: right; }
.facts dd.mono { white-space: pre-wrap; word-break: break-word; }

.foot { padding: 12px 20px 28px; display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--muted); }
.foot-code { word-break: break-all; }

.message { flex: 1; padding: 40px 24px; display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.message h1 { margin: 0; font-size: 26px; line-height: 1.25; font-weight: 700; }
.message p { margin: 0; font-size: 16px; line-height: 1.5; color: #3E4A44; }
.message-icon { width: 56px; height: 56px; border-radius: 999px; background: var(--warn-bg); display: flex; align-items: center; justify-content: center; }
.message-icon svg { width: 28px; height: 28px; fill: none; stroke: var(--warn); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.scanned { width: 100%; gap: 4px; }
.scanned-code { font-size: 15px; font-weight: 500; word-break: break-all; }