:root {
    --admin-bg: #f4f7ff;
    --admin-surface: rgba(255, 255, 255, 0.76);
    --admin-card: #ffffff;
    --admin-text: #132341;
    --admin-muted: #667895;
    --admin-border: rgba(148, 163, 184, 0.18);
    --admin-primary: #4f7cff;
    --admin-purple: #8a5bff;
    --admin-orange: #ff8d5b;
    --admin-green: #1ec79d;
    --admin-shadow: 0 20px 55px rgba(26, 37, 72, 0.1);
}

[data-theme="dark"] {
    --admin-bg: #07101d;
    --admin-surface: rgba(11, 20, 38, 0.84);
    --admin-card: #0b1628;
    --admin-text: #eef4ff;
    --admin-muted: #99add2;
    --admin-border: rgba(148, 163, 184, 0.12);
    --admin-shadow: 0 20px 55px rgba(0, 0, 0, 0.35);
}

body {
    margin: 0;
    font-family: "Plus Jakarta Sans", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(79,124,255,0.14), transparent 30%),
        radial-gradient(circle at bottom right, rgba(255,141,91,0.12), transparent 24%),
        var(--admin-bg);
    color: var(--admin-text);
    overflow-x: hidden;
    overflow-y: auto;
}
h1, h2, h3, h4, h5, h6, .admin-brand strong { font-family: "Manrope", sans-serif; font-weight: 800; }
.admin-layout { display: grid; grid-template-columns: 290px 1fr; align-items: start; min-height: 100vh; }
.admin-sidebar {
    padding: 1.6rem; background: #07101d; color: #fff; position: sticky; top: 0; height: 100vh; overflow-y: auto;
    border-right: 1px solid rgba(255,255,255,0.06); transform: translateZ(0);
}
.admin-brand { display: flex; gap: 0.9rem; align-items: center; color: #fff; margin-bottom: 2rem; text-decoration: none; }
.admin-brand img { width: 48px; height: 48px; border-radius: 14px; }
.admin-brand span { display: block; color: rgba(255,255,255,0.62); font-size: 0.92rem; }
.admin-nav { display: grid; gap: 0.5rem; }
.admin-nav a {
    color: rgba(238, 244, 255, 0.82); padding: 0.95rem 1rem; border-radius: 16px; display: flex; gap: 0.75rem; align-items: center; font-weight: 600;
}
.admin-nav a.active, .admin-nav a:hover { background: rgba(255,255,255,0.09); color: #fff; }
.admin-content { padding: 1.6rem 1.6rem 2rem; }
.admin-topbar {
    display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.4rem 1.6rem;
    border: 1px solid var(--admin-border); border-radius: 24px; background: var(--admin-surface); box-shadow: var(--admin-shadow);
}
.admin-topbar h1 { margin: 0; font-size: 1.8rem; }
.admin-topbar p { margin: 0.35rem 0 0; color: var(--admin-muted); }
.admin-topbar-actions { display: flex; align-items: center; gap: 1rem; }
.admin-user-chip {
    display: grid; background: rgba(79,124,255,0.08); padding: 0.75rem 1rem; border-radius: 16px; min-width: 170px;
}
.admin-user-chip small { color: var(--admin-muted); }
.admin-main { padding-top: 1.5rem; }
.admin-panel, .stack-panel, .admin-stat-card {
    border: 1px solid var(--admin-border); border-radius: 24px; background: var(--admin-surface);
    box-shadow: var(--admin-shadow);
}
.admin-panel { padding: 1.5rem; }
.stack-panel { padding: 1.4rem; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.panel-head h3 { margin: 0; }
.admin-list-tools {
    display: flex; align-items: center; gap: 1rem; margin-bottom: 20px;
}
.admin-search-form { width: min(520px, 100%); }
.admin-list-footer {
    display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 20px;
}
.admin-list-summary { color: var(--admin-muted); font-weight: 700; white-space: nowrap; }
.admin-pagination-bottom { display: flex; justify-content: flex-end; }
.admin-pagination .page-link {
    color: var(--admin-text); border-color: var(--admin-border); background: rgba(255,255,255,0.58);
}
.admin-pagination .page-item.active .page-link {
    color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--admin-primary), var(--admin-purple));
}
[data-theme="dark"] .admin-pagination .page-link { background: rgba(12, 21, 40, 0.88); }
.admin-stat-card { padding: 1.5rem; }
.admin-stat-card span { color: var(--admin-muted); font-weight: 600; }
.admin-stat-card h2 { margin: 0.65rem 0 0; font-size: 2.4rem; }
.accent-blue { background: linear-gradient(135deg, rgba(79,124,255,0.14), rgba(138,91,255,0.12)); }
.accent-orange { background: linear-gradient(135deg, rgba(255,141,91,0.14), rgba(255,77,152,0.1)); }
.accent-green { background: linear-gradient(135deg, rgba(30,199,157,0.14), rgba(50,199,255,0.1)); }
.quick-actions { display: grid; gap: 0.75rem; }
.quick-action {
    padding: 1rem 1.1rem; border: 1px solid var(--admin-border); border-radius: 16px; font-weight: 700;
    background: rgba(79,124,255,0.05);
}
.file-tabs { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.file-tabs a {
    padding: 0.75rem 1rem; border: 1px solid var(--admin-border); border-radius: 14px;
    color: var(--admin-text); font-weight: 700; text-decoration: none; background: rgba(255,255,255,0.58);
}
.file-tabs a.active { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--admin-primary), var(--admin-purple)); }
.admin-table { color: var(--admin-text); }
.admin-table th { color: var(--admin-muted); font-weight: 700; border-bottom-color: var(--admin-border); }
.admin-table td { border-bottom-color: var(--admin-border); }
.btn-gradient {
    border: 0; color: #fff; border-radius: 16px; padding: 0.85rem 1.3rem;
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-purple));
    box-shadow: 0 12px 24px rgba(79,124,255,0.24);
}
.btn-gradient:hover { color: #fff; transform: translateY(-2px); }
.form-control, .form-select {
    border-radius: 16px; border: 1px solid var(--admin-border); background: rgba(255,255,255,0.8); color: var(--admin-text); padding: 0.9rem 1rem;
}
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select { background: rgba(12, 21, 40, 0.88); color: var(--admin-text); }
.form-control:focus, .form-select:focus { box-shadow: 0 0 0 0.25rem rgba(79,124,255,0.14); border-color: rgba(79,124,255,0.3); }
.code-editor { font-family: Consolas, "Courier New", monospace; line-height: 1.55; }
.admin-thumb { max-width: 100%; border-radius: 18px; border: 1px solid var(--admin-border); }
.icon-preview {
    width: 64px; height: 64px; border-radius: 18px; display: inline-flex; align-items: center; justify-content: center;
    background: rgba(79,124,255,0.08); color: var(--admin-primary); font-size: 1.5rem;
}
.alert { border-radius: 18px; border: 0; }
.login-page {
    min-height: 100vh; display: grid; place-items: center; padding: 2rem;
    background: linear-gradient(135deg, #081325, #13284f 45%, #24113a 100%);
}
.login-card {
    width: min(480px, 100%); padding: 2rem; border-radius: 28px; color: #fff;
    background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}
.login-card p, .demo-credentials { color: rgba(255,255,255,0.74); }
.login-logo { width: 68px; height: 68px; border-radius: 20px; }
.demo-credentials { text-align: center; font-size: 0.92rem; }
.ck-editor__editable { min-height: 220px; }
canvas { width: 100% !important; max-height: 320px; }

@media (max-width: 991.98px) {
    .admin-layout { grid-template-columns: 1fr; }
    .admin-sidebar { position: relative; height: auto; }
}

@media (max-width: 767.98px) {
    .admin-content { padding: 1rem; }
    .admin-topbar { flex-direction: column; align-items: flex-start; }
    .admin-list-tools { align-items: stretch; flex-direction: column; }
    .admin-list-footer { align-items: flex-start; flex-direction: column; }
    .admin-list-summary { white-space: normal; }
    .admin-pagination-bottom { justify-content: flex-start; overflow-x: auto; }
}