:root {
    --bg: #f4f6fa;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --border: #e5e9f2;
    --text: #172033;
    --muted: #697386;
    --primary: #315efb;
    --primary-dark: #2347ca;
    --danger: #d92d20;
    --success: #067647;
    --sidebar: #111827;
    --sidebar-muted: #9ca3af;
    --radius: 10px;
    --shadow: 0 8px 30px rgba(15, 23, 42, .06);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.admin-shell { min-height: 100vh; display: grid; grid-template-columns: 232px minmax(0, 1fr); }
.sidebar { position: sticky; top: 0; height: 100vh; padding: 22px 14px; color: #fff; background: var(--sidebar); }
.brand { display: flex; align-items: center; gap: 11px; padding: 0 10px 24px; font-weight: 700; font-size: 17px; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: var(--primary); }
.nav-section { margin: 14px 10px 7px; color: var(--sidebar-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; }
.nav-link { display: flex; align-items: center; gap: 10px; margin: 3px 0; padding: 10px 12px; border-radius: 8px; color: #d1d5db; }
.nav-link:hover, .nav-link.active { color: #fff; background: rgba(255, 255, 255, .1); }
.nav-icon { width: 18px; text-align: center; }
.nav-parent { width: 100%; border: 0; background: transparent; color: inherit; text-align: left; cursor: pointer; }
.nav-caret { margin-left: auto; transition: transform .18s ease; }
.nav-submenu { display: none; margin: 2px 0 7px 28px; padding-left: 9px; border-left: 1px solid rgba(255, 255, 255, .13); }
.nav-group.open .nav-submenu { display: block; }
.nav-group.open .nav-caret { transform: rotate(90deg); }
.nav-sub-link { padding-block: 8px; font-size: 13px; }

.main-area { min-width: 0; }
.topbar { height: 68px; display: flex; align-items: center; justify-content: space-between; padding: 0 28px; background: var(--surface); border-bottom: 1px solid var(--border); }
.topbar-title { font-size: 16px; font-weight: 650; }
.account { display: flex; align-items: center; gap: 12px; }
.account-name { text-align: right; }
.account-name small { display: block; color: var(--muted); }
.content { padding: 26px 28px 40px; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.page-head h1 { margin: 0; font-size: 24px; }
.page-head p { margin: 5px 0 0; color: var(--muted); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-body { padding: 22px; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.stat { padding: 20px; }
.stat-label { color: var(--muted); }
.stat-value { margin-top: 8px; font-size: 30px; font-weight: 720; }

.toolbar { display: flex; align-items: center; gap: 10px; padding: 16px; border-bottom: 1px solid var(--border); }
.toolbar .grow { flex: 1; }
.field, .select, .textarea { width: 100%; border: 1px solid #ccd3df; border-radius: 7px; background: #fff; color: var(--text); outline: none; }
.field, .select { height: 38px; padding: 0 11px; }
.textarea { min-height: 92px; padding: 10px 11px; resize: vertical; }
.field:focus, .select:focus, .textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(49, 94, 251, .1); }
.toolbar .field { max-width: 240px; }
.toolbar .select { width: 130px; }
.toolbar .field-id { max-width: 110px; }
.toolbar .select-game { width: 200px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 36px; padding: 7px 13px; border: 1px solid #ccd3df; border-radius: 7px; background: #fff; color: var(--text); cursor: pointer; }
.btn:hover { background: var(--surface-soft); }
.btn-primary { border-color: var(--primary); background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { border-color: #fda29b; color: var(--danger); }
.btn-sm { min-height: 30px; padding: 4px 9px; font-size: 13px; }
.btn-link { border: 0; background: transparent; color: var(--primary); padding: 4px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 16px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; white-space: nowrap; }
th { color: var(--muted); background: var(--surface-soft); font-size: 13px; font-weight: 650; }
tbody tr:hover { background: #fafbff; }
.actions { display: flex; align-items: center; gap: 8px; }
.inline-form { display: inline; margin: 0; }
.empty { padding: 48px 20px; color: var(--muted); text-align: center; }

.badge { display: inline-flex; align-items: center; padding: 3px 8px; border-radius: 999px; background: #eef2f7; color: #475467; font-size: 12px; }
.badge-success { background: #ecfdf3; color: var(--success); }
.badge-danger { background: #fef3f2; color: var(--danger); }
.badge-primary { background: #eef4ff; color: #3538cd; }

.alert { margin-bottom: 16px; padding: 11px 14px; border-radius: 8px; }
.alert-success { background: #ecfdf3; color: var(--success); border: 1px solid #abefc6; }
.alert-error { background: #fef3f2; color: var(--danger); border: 1px solid #fecdca; }

.form-card { max-width: 820px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.form-group { min-width: 0; }
.form-group.full { grid-column: 1 / -1; }
.form-label { display: block; margin-bottom: 6px; font-weight: 650; }
.form-help { margin-top: 5px; color: var(--muted); font-size: 12px; }
.form-actions { display: flex; gap: 10px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); }
.section-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section-head h2, .animation-card h2 { margin: 0; font-size: 17px; }
.section-head p, .publish-card p { margin: 4px 0 0; color: var(--muted); }
.skin-cell { display: flex; align-items: center; gap: 11px; }
.skin-thumb { display: grid; place-items: center; width: 52px; height: 52px; overflow: hidden; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-soft); color: var(--muted); font-size: 11px; }
.skin-thumb img { width: 100%; height: 100%; object-fit: cover; image-rendering: auto; }
.cell-sub { margin-top: 2px; color: var(--muted); font-size: 12px; }
.animation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 16px; }
.animation-card { overflow: hidden; }
.animation-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.action-code { color: var(--muted); font: 12px/1.4 monospace; }
.animation-body { padding: 18px; }
.animation-preview { display: grid; place-items: center; margin-bottom: 16px; overflow: hidden; border: 1px dashed #c6cfdd; border-radius: 8px; background: var(--surface-soft); }
.animation-preview canvas { display: block; width: 220px; max-width: 100%; height: 180px; }
.file-input { width: 100%; padding: 9px; border: 1px solid #ccd3df; border-radius: 7px; background: #fff; }
.animation-fields { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 11px; margin-top: 14px; }
.animation-fields label { color: var(--muted); font-size: 12px; }
.animation-fields .field, .animation-fields .select { margin-top: 4px; color: var(--text); }
.sticky-actions { position: sticky; bottom: 0; z-index: 20; display: flex; gap: 10px; margin-top: 18px; padding: 13px 16px; border: 1px solid var(--border); border-radius: var(--radius); background: rgba(255, 255, 255, .96); box-shadow: 0 -6px 24px rgba(15, 23, 42, .08); backdrop-filter: blur(8px); }
.publish-card { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; border-color: #b8c7ff; }
.check-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.check-item { display: flex; align-items: flex-start; gap: 8px; padding: 10px; border: 1px solid var(--border); border-radius: 7px; }
.permission-group + .permission-group { margin-top: 18px; }
.permission-title { margin: 0 0 9px; font-size: 14px; }

.pagination { display: flex; justify-content: flex-end; padding: 16px; }
.pagination ul { display: flex; gap: 5px; margin: 0; padding: 0; list-style: none; }
.pagination li a, .pagination li span { display: grid; place-items: center; min-width: 32px; height: 32px; padding: 0 8px; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
.pagination .active span { border-color: var(--primary); background: var(--primary); color: #fff; }
.pagination .disabled span { color: #a4acb9; background: #f8fafc; }

.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at top left, #e9efff, transparent 38%), var(--bg); }
.login-card { width: min(420px, 100%); padding: 34px; }
.login-card h1 { margin: 0 0 6px; font-size: 25px; }
.login-card .subtitle { margin: 0 0 24px; color: var(--muted); }
.login-card .form-group + .form-group { margin-top: 16px; }
.login-card .btn { width: 100%; margin-top: 22px; }

@media (max-width: 900px) {
    .admin-shell { grid-template-columns: 76px minmax(0, 1fr); }
    .sidebar { padding-inline: 10px; }
    .brand { justify-content: center; padding-inline: 0; }
    .brand-text, .nav-section, .nav-label, .nav-caret { display: none; }
    .nav-link { justify-content: center; }
    .nav-submenu { margin-left: 0; padding-left: 0; border: 0; }
    .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
    .admin-shell { display: block; }
    .sidebar { position: static; width: 100%; height: auto; display: flex; align-items: center; overflow-x: auto; padding: 8px; }
    .brand { padding: 0 10px 0 0; }
    .nav-section { display: none; }
    .nav-link { flex: 0 0 auto; }
    .nav-group { flex: 0 0 auto; }
    .nav-group.open .nav-submenu { display: flex; }
    .nav-submenu { margin: 0; }
    .nav-submenu .nav-label { display: inline; }
    .topbar { padding: 0 16px; }
    .content { padding: 20px 14px 32px; }
    .stats, .form-grid, .check-grid, .animation-grid, .animation-fields { grid-template-columns: 1fr; }
    .page-head { flex-direction: column; }
    .toolbar { align-items: stretch; flex-direction: column; }
    .toolbar .field, .toolbar .select { max-width: none; width: 100%; }
}