/* ===========================================================================
   Core Admin — minimal, self-contained stylesheet (no external dependencies)
   =========================================================================== */

:root {
    --bg: #f1f5f9;
    --panel: #ffffff;
    --ink: #0f172a;
    --muted: #64748b;
    --brand: #4f46e5;
    --brand-ink: #ffffff;
    --line: #e2e8f0;
    --ok: #16a34a;
    --ok-bg: #f0fdf4;
    --err: #dc2626;
    --err-bg: #fef2f2;
    --sidebar: #111827;
    --sidebar-ink: #cbd5e1;
    --radius: 14px;
}

* { box-sizing: border-box; }

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

a { color: var(--brand); }

/* --- Auth (login) --------------------------------------------------------- */
body.auth {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, #1e1b4b, #0f172a);
    padding: 24px;
}
.auth-card {
    width: 100%;
    max-width: 380px;
    background: var(--panel);
    border-radius: 18px;
    padding: 28px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}
.auth-brand { font-weight: 700; color: var(--brand); margin-bottom: 12px; }
.auth-card h1 { margin: 0 0 16px; font-size: 22px; }
.brand-mark { color: var(--brand); }

/* --- Shell ---------------------------------------------------------------- */
.admin-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    background: var(--sidebar);
    color: var(--sidebar-ink);
    display: flex;
    flex-direction: column;
    padding: 20px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
}
.brand {
    display: flex; align-items: center; gap: 10px;
    font-weight: 700; color: #fff; font-size: 18px;
    padding: 6px 10px 18px;
}
.nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px; border-radius: 10px;
    color: var(--sidebar-ink); text-decoration: none; font-size: 14px;
}
.nav-item:hover { background: rgba(255, 255, 255, .08); color: #fff; }
.nav-icon { width: 18px; text-align: center; opacity: .85; }
.logout { padding-top: 12px; border-top: 1px solid rgba(255, 255, 255, .1); }

/* --- Content -------------------------------------------------------------- */
.content { flex: 1; min-width: 0; }
.topbar {
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    padding: 18px 28px;
    position: sticky; top: 0; z-index: 5;
}
.topbar h1 { margin: 0; font-size: 20px; }
.page { padding: 28px; max-width: 1000px; }
.muted { color: var(--muted); }
.section-title { font-size: 15px; text-transform: uppercase; letter-spacing: .06em;
                 color: var(--muted); margin: 28px 0 12px; }

/* --- Cards ---------------------------------------------------------------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px;
}
.card.empty { color: var(--muted); grid-column: 1 / -1; }
.stat .stat-value { font-size: 30px; font-weight: 700; }
.stat .stat-label { color: var(--muted); font-size: 13px; margin-top: 4px; }

/* --- Plugin list ---------------------------------------------------------- */
.plugin-list { display: flex; flex-direction: column; gap: 14px; }
.plugin-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.plugin-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.plugin-desc { margin: 8px 0 4px; color: #334155; }
.plugin-meta { margin: 0; font-size: 12px; color: var(--muted); }
.plugin-actions form { margin: 0; }

.badge { font-size: 11px; padding: 2px 9px; border-radius: 999px; font-weight: 600; }
.badge-on { background: var(--ok-bg); color: var(--ok); }
.badge-off { background: #f1f5f9; color: var(--muted); }
.pill { font-size: 11px; color: var(--muted); border: 1px solid var(--line); padding: 1px 8px; border-radius: 999px; }

/* --- Themes --------------------------------------------------------------- */
.theme-picker { display: flex; gap: 10px; align-items: center; max-width: 460px; }
.theme-picker select { flex: 1; }
.theme-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.theme-card { padding: 0; overflow: hidden; }
.theme-card.is-global { border-color: var(--brand); box-shadow: 0 0 0 1px var(--brand); }
.theme-swatch { height: 84px; background: linear-gradient(135deg, var(--sw, #4f46e5), #0f172a); }
.theme-body { padding: 16px; }
.theme-head { display: flex; align-items: center; gap: 8px; justify-content: space-between; }
.theme-body form { margin-top: 12px; }

/* --- Forms & buttons ------------------------------------------------------ */
label { display: block; }
.auth-card label, form label { margin-top: 12px; font-size: 14px; font-weight: 600; }
.auth-card label span { display: block; margin-bottom: 6px; }
input, select {
    width: 100%; padding: 10px 12px; font-size: 14px;
    border: 1px solid var(--line); border-radius: 10px; background: #fff;
}
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }

.btn {
    display: inline-block; border: 0; border-radius: 10px; cursor: pointer;
    padding: 10px 16px; font-size: 14px; font-weight: 600; text-decoration: none; text-align: center;
}
.btn-primary { background: var(--brand); color: var(--brand-ink); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-danger { background: var(--err-bg); color: var(--err); border: 1px solid #fecaca; }
.btn-ghost { background: transparent; color: var(--sidebar-ink); border: 1px solid rgba(255,255,255,.18); }
.btn-block { display: block; width: 100%; margin-top: 16px; }
.btn:disabled { opacity: .55; cursor: default; }

/* --- Alerts --------------------------------------------------------------- */
.alert { padding: 11px 14px; border-radius: 10px; font-size: 14px; margin: 0 0 16px; }
.alert-error { background: var(--err-bg); color: var(--err); border: 1px solid #fecaca; }
.alert-ok { background: var(--ok-bg); color: var(--ok); border: 1px solid #bbf7d0; }

code { background: #f1f5f9; padding: 1px 6px; border-radius: 6px; font-size: 12.5px; }

.row { display: flex; gap: 12px; }
.row > div { flex: 1; }

@media (max-width: 720px) {
    .admin-shell { flex-direction: column; }
    .sidebar { width: auto; height: auto; position: static; flex-direction: row; flex-wrap: wrap; align-items: center; }
    .nav { flex-direction: row; flex-wrap: wrap; }
    .logout { border: 0; padding: 0; }
}