:root {
    --cms-bg: #f4f5f8;
    --cms-surface: #ffffff;
    --cms-border: #e5e7eb;
    --cms-text: #1a1d29;
    --cms-text-muted: #6b7280;
    --cms-primary: #4f46e5;
    --cms-primary-hover: #4338ca;
    --cms-primary-soft: #eef2ff;
    --cms-danger: #dc2626;
    --cms-danger-hover: #b91c1c;
    --cms-danger-soft: #fef2f2;
    --cms-success: #16a34a;
    --cms-success-soft: #f0fdf4;
    --cms-sidebar-bg: #14161f;
    --cms-sidebar-text: #9aa0b4;
    --cms-sidebar-text-active: #ffffff;
    --cms-sidebar-active-bg: rgba(255,255,255,0.08);
    --cms-radius: 12px;
    --cms-radius-sm: 8px;
    --cms-shadow: 0 1px 2px rgba(16,24,40,.05);
    --cms-shadow-md: 0 4px 16px rgba(16,24,40,.08);
    --cms-sidebar-w: 232px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --cms-bg: #0f1117;
        --cms-surface: #191b24;
        --cms-border: #2a2d3a;
        --cms-text: #f0f1f5;
        --cms-text-muted: #9297a8;
        --cms-primary: #6366f1;
        --cms-primary-hover: #818cf8;
        --cms-primary-soft: #1e2049;
        --cms-danger: #f87171;
        --cms-danger-hover: #fca5a5;
        --cms-danger-soft: #3a1c1f;
        --cms-success: #4ade80;
        --cms-success-soft: #16321f;
        --cms-sidebar-bg: #0b0c12;
        --cms-shadow: 0 1px 2px rgba(0,0,0,.3);
        --cms-shadow-md: 0 4px 20px rgba(0,0,0,.45);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
    background: var(--cms-bg);
    color: var(--cms-text);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--cms-primary); }
h1, h2, h3 { letter-spacing: -0.01em; }
code {
    background: var(--cms-primary-soft);
    color: var(--cms-primary);
    padding: .1rem .4rem;
    border-radius: 4px;
    font-size: .85em;
}

/* ---------- Auth pages (login / setup) ---------- */

.cms-auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(circle at 20% 20%, rgba(99,102,241,.25), transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(99,102,241,.15), transparent 40%),
        var(--cms-sidebar-bg);
    padding: 1.5rem;
}
.cms-auth-box {
    background: var(--cms-surface);
    padding: 2.25rem 2.5rem;
    border-radius: 16px;
    width: 100%;
    max-width: 360px;
    box-shadow: var(--cms-shadow-md);
    border: 1px solid var(--cms-border);
}
.cms-auth-box::before {
    content: "A";
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--cms-primary);
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
}
.cms-auth-box h1 { font-size: 1.35rem; margin: 0 0 .35rem; }
.cms-auth-box form label {
    display: block;
    margin-bottom: 1rem;
    font-size: .82rem;
    font-weight: 600;
    color: var(--cms-text-muted);
}
.cms-auth-box input {
    display: block;
    width: 100%;
    padding: .6rem .7rem;
    margin-top: .35rem;
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius-sm);
    font-size: .95rem;
    background: var(--cms-bg);
    color: var(--cms-text);
    transition: border-color .15s, box-shadow .15s;
}
.cms-auth-box input:focus {
    outline: none;
    border-color: var(--cms-primary);
    box-shadow: 0 0 0 3px var(--cms-primary-soft);
}
.cms-auth-box button {
    width: 100%;
    padding: .65rem;
    background: var(--cms-primary);
    color: #fff;
    border: 0;
    border-radius: var(--cms-radius-sm);
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s, transform .1s;
}
.cms-auth-box button:hover { background: var(--cms-primary-hover); }
.cms-auth-box button:active { transform: translateY(1px); }

.cms-error {
    color: var(--cms-danger);
    background: var(--cms-danger-soft);
    border: 1px solid color-mix(in srgb, var(--cms-danger) 30%, transparent);
    padding: .6rem .85rem;
    border-radius: var(--cms-radius-sm);
    font-size: .87rem;
}
.cms-success {
    color: var(--cms-success);
    background: var(--cms-success-soft);
    border: 1px solid color-mix(in srgb, var(--cms-success) 30%, transparent);
    padding: .6rem .85rem;
    border-radius: var(--cms-radius-sm);
    font-size: .87rem;
}
.cms-muted { color: var(--cms-text-muted); font-size: .85rem; }

/* ---------- App shell: sidebar + content ---------- */

.cms-shell {
    display: flex;
    min-height: 100vh;
}

.cms-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--cms-sidebar-w);
    background: var(--cms-sidebar-bg);
    color: var(--cms-sidebar-text);
    display: flex;
    flex-direction: column;
    padding: 1.25rem .9rem;
    gap: .15rem;
    overflow-y: auto;
}
.cms-nav-brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    color: #fff;
    font-weight: 700;
    font-size: 1.02rem;
    padding: .4rem .6rem 1.1rem;
    margin-bottom: .4rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.cms-nav-brand::before {
    content: "";
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--cms-primary), #8b5cf6);
    flex-shrink: 0;
}
.cms-nav a {
    color: var(--cms-sidebar-text);
    text-decoration: none;
    font-size: .89rem;
    font-weight: 500;
    padding: .55rem .7rem;
    border-radius: var(--cms-radius-sm);
    display: flex;
    align-items: center;
    gap: .65rem;
    transition: background .12s, color .12s;
}
.cms-nav a:hover { color: var(--cms-sidebar-text-active); background: var(--cms-sidebar-active-bg); }
.cms-nav a.cms-nav-active {
    color: var(--cms-sidebar-text-active);
    background: var(--cms-primary);
}
.cms-nav-spacer { flex: 1; }
.cms-nav-user {
    color: #fff;
    font-size: .85rem;
    font-weight: 600;
    padding: .5rem .7rem 0;
}
.cms-nav-user-row {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .6rem .3rem;
    margin-top: .3rem;
    border-top: 1px solid rgba(255,255,255,.08);
}
.cms-nav-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--cms-primary-soft);
    color: var(--cms-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: .85rem;
    flex-shrink: 0;
}

.cms-main {
    margin-left: var(--cms-sidebar-w);
    padding: 2rem 2.5rem 3rem;
    max-width: 1180px;
    width: 100%;
}
.cms-main h1 {
    margin: 0 0 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

/* ---------- Cards ---------- */

.cms-card {
    background: var(--cms-surface);
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius);
    padding: 1.4rem 1.6rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--cms-shadow);
}
.cms-card h2 {
    margin: 0 0 .5rem;
    font-size: 1.05rem;
    font-weight: 600;
}
.cms-card h3 { font-size: .95rem; font-weight: 600; }

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

.cms-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .88rem;
}
.cms-table th, .cms-table td {
    text-align: left;
    padding: .65rem .7rem;
    border-bottom: 1px solid var(--cms-border);
    vertical-align: middle;
}
.cms-table th {
    color: var(--cms-text-muted);
    font-weight: 600;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.cms-table tbody tr:hover { background: var(--cms-bg); }
.cms-table tbody tr:last-child td { border-bottom: 0; }

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

.cms-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .5rem 1rem;
    background: var(--cms-primary);
    color: #fff;
    border: 0;
    border-radius: var(--cms-radius-sm);
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background .12s, box-shadow .12s, transform .08s;
}
.cms-btn:hover { background: var(--cms-primary-hover); box-shadow: var(--cms-shadow-md); }
.cms-btn:active { transform: translateY(1px); }
.cms-btn.cms-btn-danger { background: var(--cms-danger); }
.cms-btn.cms-btn-danger:hover { background: var(--cms-danger-hover); }
.cms-btn.cms-btn-secondary { background: transparent; color: var(--cms-text); border: 1px solid var(--cms-border); }
.cms-btn.cms-btn-secondary:hover { background: var(--cms-bg); box-shadow: none; }

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

.cms-form-row { margin-bottom: 1.1rem; }
.cms-form-row label {
    display: block;
    font-size: .82rem;
    font-weight: 600;
    color: var(--cms-text-muted);
    margin-bottom: .35rem;
}
.cms-form-row input,
.cms-form-row select {
    width: 100%;
    max-width: 420px;
    padding: .55rem .7rem;
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius-sm);
    font-size: .9rem;
    background: var(--cms-bg);
    color: var(--cms-text);
    transition: border-color .15s, box-shadow .15s;
}
.cms-form-row input:focus,
.cms-form-row select:focus {
    outline: none;
    border-color: var(--cms-primary);
    box-shadow: 0 0 0 3px var(--cms-primary-soft);
    background: var(--cms-surface);
}
.cms-form-row input[type="file"] { padding: .4rem; background: transparent; border-style: dashed; }

/* ---------- Misc ---------- */

.cms-thumb-grid {
    display: flex;
    flex-wrap: wrap;
    gap: .85rem;
    margin-top: .85rem;
}
.cms-thumb-grid figure { margin: 0; width: 140px; }
.cms-thumb-grid img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: var(--cms-radius-sm);
    border: 1px solid var(--cms-border);
}
.cms-thumb-grid figcaption { text-align: center; margin-top: .4rem; }

.cms-badge {
    display: inline-block;
    padding: .2rem .6rem;
    border-radius: 999px;
    font-size: .72rem;
    font-weight: 600;
    background: var(--cms-primary-soft);
    color: var(--cms-primary);
}

.cms-tabs {
    display: flex;
    gap: .25rem;
    background: var(--cms-surface);
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius);
    padding: .35rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--cms-shadow);
    flex-wrap: wrap;
}
.cms-tabs a {
    padding: .5rem .9rem;
    border-radius: var(--cms-radius-sm);
    font-size: .87rem;
    font-weight: 500;
    color: var(--cms-text-muted);
    text-decoration: none;
    transition: background .12s, color .12s;
}
.cms-tabs a:hover { background: var(--cms-bg); color: var(--cms-text); }
.cms-tabs a.cms-tab-active { background: var(--cms-primary-soft); color: var(--cms-primary); font-weight: 600; }

.cms-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.cms-stat-card {
    background: var(--cms-surface);
    border: 1px solid var(--cms-border);
    border-radius: var(--cms-radius);
    padding: 1.1rem 1.3rem;
    box-shadow: var(--cms-shadow);
}
.cms-stat-card .cms-stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.1;
}

@media (max-width: 860px) {
    .cms-nav { display: none; }
    .cms-main { margin-left: 0; padding: 1.5rem; }
}