/* ========== QR Verification — single global stylesheet ==========
   Mobile-first, light/dark friendly, no external dependencies.
================================================================ */

:root {
    --bg: #f4f6fb;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --border: #e2e8f0;
    --text: #0f172a;
    --muted: #64748b;
    --primary: #2563eb;
    --primary-text: #ffffff;
    --primary-hover: #1d4ed8;
    --success: #16a34a;
    --warning: #d97706;
    --danger: #dc2626;
    --radius: 10px;
    --shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
    --mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1220;
        --surface: #131b2c;
        --surface-2: #0f1626;
        --border: #1f2a3d;
        --text: #e2e8f0;
        --muted: #94a3b8;
        --primary: #3b82f6;
        --primary-hover: #60a5fa;
        --shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    }
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }

p { margin: 0 0 1em; }
small { color: var(--muted); }

code {
    font-family: var(--mono);
    background: var(--surface-2);
    padding: 0.1em 0.35em;
    border-radius: 4px;
    border: 1px solid var(--border);
    font-size: 0.92em;
}

/* ---------- Layouts ---------- */

.page-narrow {
    max-width: 540px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}
.page-wide {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 16px 48px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.card + .card { margin-top: 16px; }

/* ---------- Top nav (admin) ---------- */

.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.topbar .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text);
}
.topbar .brand-logo {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #fff;
    object-fit: contain;
    padding: 2px;
    border: 1px solid var(--border);
}

/* ---------- Public header (verify, install, login) ---------- */

.page-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 16px 8px;
}
.page-header-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    text-decoration: none;
}
.page-header-link:hover { text-decoration: none; }
.page-header-org {
    font-weight: 700;
    font-size: 1.1rem;
}
.page-logo {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: #fff;
    object-fit: contain;
    padding: 4px;
    border: 1px solid var(--border);
}

/* Verify page variant: stack logo over org-name, both centered,
   logo scaled ~3x for impact on the public verification result. */
.page-header-verify {
    padding: 28px 16px 12px;
}
.page-header-verify .page-header-link {
    flex-direction: column;
    gap: 14px;
    text-align: center;
}
.page-header-verify .page-header-org {
    font-size: 1.35rem;
}
.page-logo-xl {
    width: 136px;
    height: 136px;
    padding: 6px;
}
@media (max-width: 480px) {
    .page-logo-xl {
        width: 112px;
        height: 112px;
    }
}
.topbar nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.topbar nav a {
    color: var(--muted);
    padding: 6px 8px;
    border-radius: 6px;
}
.topbar nav a:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.topbar nav a.active { color: var(--text); background: var(--surface-2); }

/* ---------- Forms ---------- */

form label {
    display: block;
    margin-top: 14px;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.95rem;
}

form input[type="text"],
form input[type="url"],
form input[type="password"],
form input[type="date"],
form input[type="email"],
form input[type="number"],
form input[type="search"],
form input[type="tel"],
form textarea,
form select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 120ms ease, box-shadow 120ms ease;
}

/* Style the up/down spinner area on number inputs in WebKit/Blink so it
   matches the input's dark/light theme. */
form input[type="number"] {
    -moz-appearance: textfield;
}
form input[type="number"]::-webkit-inner-spin-button,
form input[type="number"]::-webkit-outer-spin-button {
    height: 36px;
    opacity: 0.7;
}

form input:focus,
form textarea:focus,
form select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}

form textarea { min-height: 110px; resize: vertical; }

.hint { display: block; margin-top: 4px; color: var(--muted); }
.err  { display: block; margin-top: 4px; color: var(--danger); font-weight: 500; }
.lede { color: var(--muted); }

/* ---------- Buttons ---------- */

.btn {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.95rem;
    text-decoration: none;
    transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}
.btn:hover { background: var(--surface-2); text-decoration: none; }
.btn.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.btn.primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn.danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn.danger:hover { filter: brightness(0.9); }
.btn.small { padding: 6px 10px; font-size: 0.85rem; }
.btn-row {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}
.btn-row .btn { margin-top: 0; }

button[type="submit"].primary { margin-top: 20px; }
form .btn-row button[type="submit"].primary { margin-top: 0; }

/* ---------- Tables ---------- */

.table-wrap { overflow-x: auto; }
table.records {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}
table.records th, table.records td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
table.records th {
    background: var(--surface-2);
    font-weight: 600;
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
table.records tbody tr:hover { background: var(--surface-2); }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }

/* Color picker */
.color-field {
    display: flex;
    align-items: center;
    gap: 12px;
}
.color-field input[type="color"] {
    width: 56px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    cursor: pointer;
}
.color-field .color-hex {
    font-family: var(--mono);
    font-size: 0.95rem;
}
.color-swatch {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 3px;
    vertical-align: -2px;
    border: 1px solid var(--border);
    margin-right: 4px;
}

/* Inline rename form inside the categories table */
form.inline-rename {
    display: flex;
    gap: 6px;
    align-items: center;
    margin: 0;
}
form.inline-rename input[type="text"] {
    flex: 1;
    min-width: 0;
    padding: 6px 10px;
    margin: 0;
}
form.inline-rename label { display: none; }

/* ---------- Status badges ---------- */

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.badge.valid   { background: color-mix(in srgb, var(--success) 18%, transparent); color: var(--success); }
.badge.expired { background: color-mix(in srgb, var(--warning) 18%, transparent); color: var(--warning); }
.badge.revoked { background: color-mix(in srgb, var(--danger) 18%, transparent);  color: var(--danger);  }
.badge.invalid { background: color-mix(in srgb, var(--danger) 18%, transparent);  color: var(--danger);  }

/* ---------- Alerts ---------- */

.alert {
    padding: 12px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
    margin-bottom: 16px;
}
.alert.success { background: color-mix(in srgb, var(--success) 12%, transparent); border-color: var(--success); }
.alert.error   { background: color-mix(in srgb, var(--danger) 12%, transparent);  border-color: var(--danger);  }
.alert.warning { background: color-mix(in srgb, var(--warning) 12%, transparent); border-color: var(--warning); }

/* ---------- Verify page ---------- */

.verify-banner {
    text-align: center;
    padding: 28px 16px 24px;
    border-radius: var(--radius);
    color: #fff;
    margin-bottom: 16px;
}
.verify-banner h1 { color: #fff; font-size: 1.6rem; margin-bottom: 6px; letter-spacing: 0.02em; }
.verify-banner p  { color: rgba(255,255,255,0.92); margin: 0; }
.verify-banner.valid   { background: var(--success); }
.verify-banner.expired { background: var(--warning); }
.verify-banner.revoked { background: var(--danger); }
.verify-banner.invalid { background: var(--danger); }
.verify-banner .icon {
    font-size: 2.4rem;
    line-height: 1;
    margin-bottom: 8px;
    display: block;
}

dl.fields {
    margin: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px 16px;
}
@media (min-width: 520px) {
    dl.fields { grid-template-columns: max-content 1fr; }
}
dl.fields dt {
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
}
dl.fields dd {
    margin: 0;
    word-break: break-word;
}
dl.fields dd.id-value {
    font-family: var(--mono);
    font-size: 0.9em;
}

/* ---------- QR result page ---------- */

.qr-stage {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.qr-stage svg {
    width: min(280px, 80vw);
    height: auto;
}
.qr-meta {
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    word-break: break-all;
}
.qr-meta a { color: var(--muted); }

/* ---------- Print ---------- */

@media print {
    body { background: #fff; color: #000; }
    .topbar, .btn-row, .no-print { display: none !important; }
    .card, .qr-stage { box-shadow: none; border: none; }
    a { color: #000; text-decoration: none; }
}

/* ---------- Admin categories ---------- */

.category-row-card .category-edit-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px 16px;
}
@media (min-width: 640px) {
    .category-row-card .category-edit-grid {
        grid-template-columns: 1.2fr 0.6fr 0.6fr auto;
        align-items: end;
    }
}
.category-delete-wrap {
    margin-top: 8px;
}
.category-icon-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.btn-icon {
    padding: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    min-height: 40px;
    line-height: 0;
}
.btn-icon svg {
    display: block;
    flex-shrink: 0;
}

.sr-only-form {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- Tiny utilities ---------- */

.muted { color: var(--muted); }
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }