/* ── Three.js background canvas ─── */
#bg-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ── Global element styles ─── */
a { color: var(--accent); text-decoration: none; font-weight: 500; }
a:hover { color: var(--accent-hover); }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 600; color: var(--text); }
img { max-width: 100%; }

/* ── Layout ─── */
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px 48px; }

/* ── Navigation ─── */
.admin-nav {
    position: sticky; top: 0; z-index: 100;
    padding: 16px 32px;
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(8, 8, 12, 0.92);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}
.admin-nav-links { display: flex; gap: 20px; align-items: center; }
.admin-nav-links a { color: var(--text-muted); font-size: 14px; font-weight: 500; transition: color 0.2s, opacity 0.2s; }
.admin-nav-links a:hover { color: var(--text); }
.admin-nav-links .active { color: var(--accent); }
.admin-nav-links .sep { color: var(--border); user-select: none; }
.admin-nav-links .nav-secondary { opacity: 0.55; }
.admin-nav-links .nav-secondary:hover { opacity: 1; }
.admin-nav-links .nav-secondary.active { opacity: 1; }
.admin-nav-user { display: flex; align-items: center; gap: 14px; font-size: 14px; color: var(--text-muted); }

/* ── Page heading ─── */
.page-heading { margin-bottom: 24px; }
.page-title { font-size: 32px; margin-bottom: 8px; }
.page-subtitle { color: var(--text-muted); font-size: 15px; margin: 0; }
.page-actions { margin-bottom: 24px; }

/* ── Breadcrumbs ─── */
.breadcrumb {
    display: flex; align-items: center; gap: 8px;
    margin-bottom: 16px; font-size: 13px;
}
.breadcrumb a { color: var(--text-muted); font-weight: 500; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .breadcrumb-sep { color: var(--border); user-select: none; }
.breadcrumb .breadcrumb-current { color: var(--text); }

/* ── Cards ─── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
}
.container > .card + .card { margin-top: 24px; }
.card-narrow { max-width: 640px; margin-left: auto; margin-right: auto; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0px; }
.section-title { font-size: 20px; line-height: 1.0; }
.card-header + .release-content > :first-child { margin-top: 0; }

/* ── Stats grid ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px; margin-bottom: 32px;
}
.stat-card { text-align: center; }
.stat-label {
    color: var(--text-muted); font-size: 13px;
    text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px;
}
.stat-number { font-size: 34px; font-weight: 700; color: var(--accent); }

/* ── Tables ─── */
.table-wrapper { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th {
    text-align: left; padding: 14px 16px;
    background: rgba(15, 15, 21, 0.6);
    font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase;
    color: var(--text-muted); border-bottom: 1px solid var(--border);
}
.table td { padding: 14px 16px; border-bottom: 1px solid var(--border); font-size: 14px; color: var(--text); }
.table tr:last-child td { border-bottom: none; }
.table .form-actions {
    display: grid; grid-template-columns: repeat(2, max-content);
    gap: 8px; justify-content: start; margin-top: 0;
}

/* ── Forms ─── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group-full { grid-column: 1 / -1; }
.form-label { font-weight: 600; color: var(--text); font-size: 14px; }
.form-control {
    background: #0a0a10; border: 1px solid var(--border); border-radius: 10px;
    padding: 10px 12px; font-size: 14px; font-family: inherit;
    color: var(--text); transition: border 0.2s, box-shadow 0.2s;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.15); }
select.form-control { appearance: auto; }
select.form-control option { background: var(--surface); color: var(--text); }
textarea.form-control { resize: vertical; }
.form-help { font-size: 12px; color: var(--text-muted); }
.form-actions { margin-top: 16px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Buttons ─── */
a.btn, button.btn, input[type="submit"].btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 18px; border: 1px solid transparent; border-radius: 10px;
    font: inherit; font-weight: 600; font-size: 14px; line-height: 1;
    text-decoration: none; cursor: pointer; appearance: none;
    transition: background 0.2s, color 0.2s, border 0.2s, box-shadow 0.2s;
}
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.25); border-color: var(--accent); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; box-shadow: 0 4px 16px rgba(74, 158, 255, 0.3); }
.btn-secondary { background: #1a1a2e; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: #222240; color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-dark); border-color: var(--danger-dark); color: #fff; }
.btn-success { background: var(--success); color: #fff; border-color: var(--success); }
.btn-success:hover { background: #15803d; border-color: #15803d; color: #fff; }
.btn-outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-outline:hover { background: rgba(74, 158, 255, 0.1); }

/* ── Status pills & badges ─── */
.status-pill {
    display: inline-flex; align-items: center; border-radius: 999px;
    padding: 4px 12px; font-size: 12px; font-weight: 600; text-transform: uppercase;
}
.status-active { background: rgba(34, 197, 94, 0.15); color: #4ade80; }
.status-expired { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.status-revoked { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.badge {
    display: inline-block; padding: 4px 10px; border-radius: 999px;
    background: rgba(34, 197, 94, 0.15); color: #4ade80;
    font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
}

/* ── Flash messages ─── */
.flash-messages { margin-bottom: 24px; }
.flash { padding: 12px 18px; border-radius: 10px; border: 1px solid; margin-bottom: 12px; font-weight: 500; }
.flash.success { background: rgba(34, 197, 94, 0.12); color: #4ade80; border-color: rgba(34, 197, 94, 0.3); }
.flash.error { background: rgba(239, 68, 68, 0.12); color: #f87171; border-color: rgba(239, 68, 68, 0.3); }
.flash.info { background: rgba(74, 158, 255, 0.12); color: #93c5fd; border-color: rgba(74, 158, 255, 0.3); }
.flash.warning { background: rgba(245, 158, 11, 0.12); color: #fcd34d; border-color: rgba(245, 158, 11, 0.3); }

/* ── Utilities ─── */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); font-weight: 600; }
.text-danger { color: var(--danger); font-weight: 600; }
.text-mono { font-family: 'JetBrains Mono', monospace; }
.empty-state { text-align: center; padding: 32px 20px; color: var(--text-muted); }
.inline-form { display: inline; }
.auth-wrapper { max-width: 420px; margin: 80px auto; }
.auth-footer { text-align: center; margin-top: 16px; font-size: 13px; }
.list-monospace { list-style: none; padding: 0; margin: 0; }
.list-monospace li { font-family: 'JetBrains Mono', monospace; padding: 8px 0; border-bottom: 1px solid var(--border); }
.list-monospace li:last-child { border-bottom: none; }

/* ── Pagination ─── */
.pagination { margin-top: 24px; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.pagination a, .pagination span { padding: 8px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font-weight: 500; }
.pagination a:hover { border-color: var(--accent); color: var(--accent); }
.pagination .current { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── Release content (markdown) ─── */
.release-content { color: var(--text-muted); line-height: 1.8; }
.release-content h1, .release-content h2, .release-content h3 { margin: 20px 0 10px; color: var(--text); }
.release-content p { margin-bottom: 12px; }
.release-content ul, .release-content ol { padding-left: 20px; margin-bottom: 12px; }
.release-content li { margin-bottom: 4px; }
.release-content code { background: rgba(74, 158, 255, 0.1); padding: 2px 6px; border-radius: 4px; font-family: 'JetBrains Mono', monospace; font-size: 13px; }
.release-content pre { background: #0a0a10; padding: 16px; border-radius: 8px; overflow-x: auto; margin-bottom: 12px; }
.release-content pre code { background: none; padding: 0; }
.release-content a { color: var(--accent); }

/* ── Card list styling ─── */
.card ul { color: var(--text-muted); padding-left: 20px; line-height: 1.8; }
.card ul li { margin-bottom: 4px; }

/* ── Responsive ─── */
@media (max-width: 768px) {
    .admin-nav { padding: 12px 16px; flex-wrap: wrap; gap: 12px; }
    .admin-nav-links { gap: 12px; flex-wrap: wrap; }
    .container { padding: 0 16px 32px; }
    .table th, .table td { padding: 10px 12px; }
}

@media (max-width: 480px) {
    .card { padding: 16px; }
    .form-grid { grid-template-columns: 1fr; }
    .btn-sm { padding: 10px 14px; font-size: 13px; min-height: 44px; }
    .pagination a, .pagination span { padding: 10px 14px; min-height: 44px; }
    .page-title { font-size: 24px; }
    .page-subtitle, .breadcrumb .breadcrumb-current { word-break: break-all; overflow-wrap: break-word; }
    .list-monospace li[style*="flex"] { flex-direction: column; align-items: flex-start !important; gap: 8px; }
    .list-monospace li span { word-break: break-all; }
}