:root {
  --bg: #f5f1eb;
  --panel: #ffffff;
  --ink: #201d1a;
  --muted: #6a645d;
  --line: rgba(32,29,26,0.12);
  --accent: #ef5d36;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", "PingFang SC", sans-serif; color: var(--ink); background: var(--bg); }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.admin-sidebar { padding: 24px; border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; background: #fbf8f5; }
.admin-sidebar a, .admin-sidebar button { padding: 10px 12px; border-radius: 14px; border: 1px solid transparent; background: transparent; text-align: left; cursor: pointer; }
.admin-sidebar a:hover, .admin-sidebar button:hover { background: #fff; border-color: var(--line); }
.admin-brand { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.admin-user { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 12px; align-items: center; margin-bottom: 10px; background: #fff; border-color: var(--line) !important; overflow: hidden; }
.admin-user img { width: 42px; height: 42px; border-radius: 999px; object-fit: cover; background: #f3eee6; }
.admin-user div { min-width: 0; }
.admin-user strong { display: block; }
.admin-user span { color: var(--muted); font-size: 0.84rem; display: block; max-width: 150px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.admin-main { padding: 28px; }
.admin-page-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 22px; }
.flash { padding: 14px 16px; border-radius: 14px; margin-bottom: 18px; }
.flash.success { background: rgba(17,121,108,0.12); color: #0d5d53; }
.flash.error { background: rgba(239,93,54,0.14); color: #9a3b21; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.stat-card, .admin-note, .login-card, .data-table, .editor-main, .editor-side, .media-item, .profile-card { background: var(--panel); border: 1px solid var(--line); border-radius: 22px; }
.stat-card { padding: 24px; display: grid; gap: 10px; }
.stat-card strong { font-size: 2rem; }
.admin-note { margin-top: 22px; padding: 24px; }
.data-table { width: 100%; border-collapse: collapse; overflow: hidden; }
.data-table th, .data-table td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.editor-layout { display: grid; grid-template-columns: 1.3fr 360px; gap: 22px; }
.editor-main, .editor-side { padding: 20px; display: grid; gap: 14px; align-content: start; }
.editor-main label, .editor-side label, .stack-form label { display: grid; gap: 8px; }
input[type='text'], input[type='email'], input[type='password'], input[type='datetime-local'], textarea, select { width: 100%; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--line); background: #fff; }
textarea { resize: vertical; }
.editor-toolbar { display: flex; gap: 8px; flex-wrap: wrap; }
.editor-toolbar button, .button { padding: 10px 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; cursor: pointer; }
.button.primary { background: var(--ink); color: white; }
.tip-card { padding: 16px; border-radius: 16px; background: #faf6f1; color: var(--muted); }
.media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.media-item { padding: 12px; display: grid; gap: 12px; }
.media-item img { width: 100%; height: 180px; object-fit: cover; border-radius: 16px; }
.login-card { width: min(440px, calc(100% - 24px)); margin: 10vh auto; padding: 28px; display: grid; gap: 18px; }
.admin-auth-body { background: linear-gradient(180deg, #fff9f4 0%, #f5f1eb 100%); }
.auth-card { width: min(520px, calc(100% - 24px)); }
.register-card { margin-top: 6vh; }
.auth-switch { color: var(--muted); margin: 0; }
.auth-switch a { color: var(--ink); font-weight: 600; }
.text-link { color: var(--ink); font-size: 0.92rem; }
.stack-form { display: grid; gap: 16px; }
.stack-form .button,
.stack-form button[type='submit'] { margin-top: 4px; justify-self: start; }
.field-note { margin: 0; color: var(--muted); font-size: 0.88rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.avatar-picker { margin: 0; padding: 14px; border: 1px solid var(--line); border-radius: 16px; display: grid; gap: 10px; }
.avatar-picker legend { padding: 0 6px; color: var(--muted); }
.radio-line { display: flex !important; grid-template-columns: none !important; gap: 10px; align-items: center; }
.radio-line input { width: auto; }
.account-layout { display: grid; grid-template-columns: 280px minmax(0, 420px); gap: 22px; align-items: start; }
.profile-card { padding: 24px; display: grid; gap: 10px; justify-items: start; }
.profile-avatar { width: 92px; height: 92px; border-radius: 999px; object-fit: cover; background: #f3eee6; }
.profile-card span { color: var(--muted); }
.account-form { min-height: 100%; }
.role-badge { display: inline-flex; align-items: center; padding: 6px 10px; border-radius: 999px; background: #f6f1ea; border: 1px solid var(--line); color: var(--ink) !important; font-size: 0.84rem; }
.user-cell { display: grid; grid-template-columns: 42px 1fr; gap: 12px; align-items: center; }
.user-cell img { width: 42px; height: 42px; border-radius: 999px; object-fit: cover; background: #f3eee6; }
.cell-sub { color: var(--muted); font-size: 0.85rem; }
.role-form { display: flex; gap: 10px; align-items: center; }
.role-form select { min-width: 110px; }
@media (max-width: 960px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { border-right: 0; border-bottom: 1px solid var(--line); }
  .editor-layout, .stats-grid, .media-grid, .account-layout, .form-grid { grid-template-columns: 1fr; }
  .role-form { flex-direction: column; align-items: stretch; }
}