:root {
    --bg: #0f1420;
    --bg-elevated: #161d2e;
    --bg-elevated-2: #1c2438;
    --border: #26304a;
    --text: #e6e9f0;
    --text-muted: #96a0b8;
    --primary: #4f7cff;
    --primary-hover: #3d68ee;
    --danger: #ef5a5a;
    --success: #3fbf7f;
    --warning: #e0a83c;
    --radius: 10px;
    --radius-sm: 7px;
    --shadow: 0 1px 2px rgba(0,0,0,0.2), 0 8px 24px -12px rgba(0,0,0,0.45);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.25);
    --ease: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font);
    background:
        radial-gradient(1200px 600px at 50% -10%, rgba(79,124,255,0.07), transparent),
        var(--bg);
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: rgba(22, 29, 46, 0.85);
    backdrop-filter: saturate(150%) blur(10px);
    -webkit-backdrop-filter: saturate(150%) blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    gap: 12px 16px;
    flex-wrap: wrap;
    padding-top: 8px;
    padding-bottom: 8px;
}
.navbar .brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}
.navbar nav {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap;
}
.navbar nav a {
    color: var(--text-muted);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 7px 10px;
    border-radius: var(--radius-sm);
    transition: color var(--ease), background-color var(--ease);
}
.navbar nav a:hover {
    color: var(--text);
    background: rgba(255,255,255,0.05);
    text-decoration: none;
}
.navbar nav a.active {
    color: var(--text);
    background: rgba(79,124,255,0.14);
}
.navbar .user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    white-space: nowrap;
}
.badge-role {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--border);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

main { padding: 32px 0 64px; }

h1 { font-size: 1.6rem; margin: 0 0 4px; }
h2 { font-size: 1.2rem; margin: 0 0 12px; }
h3 { font-size: 1rem; margin: 0 0 8px; }
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}
.text-muted { color: var(--text-muted); }
.mt-0 { margin-top: 0; }

/* Cards */
.card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--ease), border-color var(--ease);
}
.stat-card:hover { transform: translateY(-1px); border-color: #33406099; }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 700; }
.stat-card .stat-label { color: var(--text-muted); font-size: 0.85rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    transition: background-color var(--ease), transform var(--ease), box-shadow var(--ease);
    box-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
.btn:hover { background: var(--primary-hover); text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-secondary { background: var(--bg-elevated-2); color: var(--text); border: 1px solid var(--border); box-shadow: none; }
.btn-secondary:hover { background: #333f5c; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #d94848; }
.btn-sm { padding: 4px 10px; font-size: 0.8rem; }

/* Forms */
.form-group { margin-bottom: 16px; }
label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 6px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date],
select, textarea {
    width: 100%;
    padding: 9px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
}
textarea { resize: vertical; min-height: 90px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date],
select, textarea {
    transition: border-color var(--ease), box-shadow var(--ease);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,124,255,0.18);
}
.field-error { color: var(--danger); font-size: 0.8rem; margin-top: 4px; }
.upload-progress {
    height: 8px;
    border-radius: 999px;
    background: var(--border);
    overflow: hidden;
    margin-top: 10px;
}
.upload-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--primary);
    transition: width 0.15s ease-out;
}
.upload-status { font-size: 0.82rem; color: var(--text-muted); margin-top: 6px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }
.form-actions { display: flex; gap: 10px; margin-top: 20px; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
th { color: var(--text-muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
tbody tr { transition: background-color var(--ease); }
tbody tr:hover { background: rgba(255,255,255,0.025); }
tr:last-child td { border-bottom: none; }
.table-wrap {
    overflow: auto;
    max-height: 70vh;
}
.table-wrap thead th {
    position: sticky;
    top: 0;
    background: var(--bg-elevated);
    box-shadow: 0 1px 0 var(--border);
}

/* Responsive tables: below this width, rows become stacked cards.
   Opt in with data-label="Column Name" on each <td>. */
@media (max-width: 720px) {
    .table-responsive thead { display: none; }
    .table-responsive, .table-responsive tbody, .table-responsive tr, .table-responsive td {
        display: block;
        width: 100%;
    }
    .table-responsive tr {
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        padding: 4px 0;
    }
    .table-responsive td {
        border-bottom: none;
        padding: 6px 12px;
        display: flex;
        gap: 12px;
        justify-content: space-between;
        text-align: right;
    }
    .table-responsive td::before {
        content: attr(data-label);
        color: var(--text-muted);
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.03em;
        text-align: left;
        flex-shrink: 0;
    }
    .table-responsive td:empty { display: none; }
}

/* Badges */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-stable { background: rgba(63,191,127,0.15); color: var(--success); }
.badge-beta, .badge-rc { background: rgba(224,168,60,0.15); color: var(--warning); }
.badge-nightly, .badge-dev { background: rgba(150,160,184,0.15); color: var(--text-muted); }
.badge-admin { background: rgba(79,124,255,0.15); color: var(--primary); }
.badge-uploader { background: rgba(224,168,60,0.15); color: var(--warning); }
.badge-viewer, .badge-basic { background: rgba(150,160,184,0.15); color: var(--text-muted); }
.badge-public { background: rgba(63,191,127,0.15); color: var(--success); }
.badge-private { background: rgba(150,160,184,0.15); color: var(--text-muted); }

/* Audit action badges */
.badge-action { font-family: "SFMono-Regular", Consolas, Menlo, monospace; }
.badge-action-create { background: rgba(63,191,127,0.15); color: var(--success); }
.badge-action-delete { background: rgba(239,90,90,0.15); color: var(--danger); }
.badge-action-auth { background: rgba(79,124,255,0.15); color: var(--primary); }
.badge-action-update { background: rgba(224,168,60,0.15); color: var(--warning); }
.badge-action-other { background: rgba(150,160,184,0.15); color: var(--text-muted); }

/* Flash / alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 0.9rem;
    border: 1px solid transparent;
}
.alert-success { background: rgba(63,191,127,0.1); border-color: rgba(63,191,127,0.4); color: var(--success); }
.alert-error { background: rgba(239,90,90,0.1); border-color: rgba(239,90,90,0.4); color: var(--danger); }

.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
}

code, .mono { font-family: "SFMono-Regular", Consolas, Menlo, monospace; font-size: 0.85em; }
.token-display {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    word-break: break-all;
    font-family: monospace;
    font-size: 0.85rem;
}

.pagination {
    display: flex;
    gap: 6px;
    margin-top: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.pagination .page-info {
    color: var(--text-muted);
    font-size: 0.82rem;
    margin-right: auto;
}
.pagination .ellipsis {
    color: var(--text-muted);
    padding: 0 4px;
    font-size: 0.85rem;
}
.pagination a.btn[aria-disabled="true"] {
    pointer-events: none;
    opacity: 0.4;
}

.filters {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    align-items: flex-end;
}
.filters .form-group { margin-bottom: 0; min-width: 140px; }

/* Collapsible metadata / details disclosure */
details.meta-toggle summary {
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.78rem;
    user-select: none;
}
details.meta-toggle summary:hover { color: var(--text); }
details.meta-toggle[open] summary { margin-bottom: 6px; }
details.meta-toggle pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-size: 0.78rem;
}