/* === Admin Layout === */
.admin-body { background: #f4f6fa; color: #1f2937; font-family: 'Nunito', system-ui, sans-serif; margin: 0; }
.admin-shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }

.admin-sidebar { background: #0f172a; color: #e2e8f0; padding: 1rem 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.admin-brand { display: block; padding: 0.5rem 1.25rem 1.25rem; font-family: 'Fredoka', sans-serif; font-size: 1.4rem; font-weight: 700; color: #fff; text-decoration: none; border-bottom: 1px solid #1e293b; margin-bottom: 0.5rem; }
.admin-nav-group { padding: 1rem 1.25rem 0.25rem; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: #64748b; font-weight: 700; }
.admin-nav-link { display: block; padding: 0.55rem 1.25rem; color: #cbd5e1; text-decoration: none; font-size: 0.95rem; border-left: 3px solid transparent; }
.admin-nav-link:hover,
.admin-nav-link:focus,
.admin-nav-link:visited { text-decoration: none; }
.admin-nav-link:hover { background: #1e293b; color: #fff; }
.admin-brand,
.admin-brand:hover,
.admin-brand:focus,
.admin-brand:visited { text-decoration: none; }
.admin-nav-link.active { background: #1e293b; color: #fff; border-left-color: #38bdf8; font-weight: 600; }

.admin-main { padding: 1.5rem 2rem 3rem; max-width: 1400px; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.25rem; gap: 1rem; flex-wrap: wrap; }
.admin-topbar h1 { font-family: 'Fredoka', sans-serif; font-size: 1.6rem; margin: 0; color: #0f172a; }
.admin-topbar-actions { display: flex; gap: 0.5rem; }

.admin-flash { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-weight: 600; }
.admin-flash-success { background: #d1fae5; color: #065f46; border: 1px solid #6ee7b7; }
.admin-flash-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.admin-flash-warning { background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; }
.admin-flash-info    { background: #dbeafe; color: #1e40af; border: 1px solid #93c5fd; }

.admin-content { background: #fff; border-radius: 12px; box-shadow: 0 1px 3px rgba(0,0,0,0.05); padding: 1.5rem; }

/* === Buttons === */
.admin-btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.5rem 0.95rem; border-radius: 8px; border: 1px solid transparent; background: #f1f5f9; color: #1e293b; text-decoration: none; font-size: 0.9rem; font-weight: 600; cursor: pointer; line-height: 1.2; transition: background .15s, transform .05s; }
.admin-btn:hover { background: #e2e8f0; }
.admin-btn:active { transform: translateY(1px); }
.admin-btn-primary { background: #2563eb; color: #fff; }
.admin-btn-primary:hover { background: #1d4ed8; }
.admin-btn-danger { background: #fee2e2; color: #b91c1c; }
.admin-btn-danger:hover { background: #fecaca; }
.admin-btn-success { background: #16a34a; color: #fff; }
.admin-btn-success:hover { background: #15803d; }
.admin-btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.admin-btn-ghost { background: transparent; border-color: #cbd5e1; }

/* === Tables === */
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 0.75rem 0.85rem; text-align: left; border-bottom: 1px solid #e5e7eb; font-size: 0.9rem; }
.admin-table th { background: #f8fafc; font-weight: 700; color: #475569; text-transform: uppercase; font-size: 0.72rem; letter-spacing: 0.05em; }
.admin-table tr:hover td { background: #f8fafc; }
.admin-table-actions { display: flex; gap: 0.4rem; justify-content: flex-end; }
.admin-empty { text-align: center; padding: 3rem 1rem; color: #64748b; }

/* === Forms === */
.admin-form { display: grid; gap: 1.1rem; max-width: 900px; }
.admin-form-row { display: grid; gap: 0.4rem; }
.admin-form-row label { font-weight: 600; color: #334155; font-size: 0.9rem; }
.admin-form-row .help { font-size: 0.8rem; color: #64748b; }
.admin-form-row input[type="text"],
.admin-form-row input[type="email"],
.admin-form-row input[type="password"],
.admin-form-row input[type="number"],
.admin-form-row input[type="url"],
.admin-form-row select,
.admin-form-row textarea { width: 100%; padding: 0.55rem 0.7rem; border: 1px solid #cbd5e1; border-radius: 8px; font-size: 0.95rem; font-family: inherit; background: #fff; box-sizing: border-box; }
.admin-form-row input:focus,
.admin-form-row select:focus,
.admin-form-row textarea:focus { outline: none; border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.admin-form-row textarea { min-height: 90px; resize: vertical; }
.admin-form-row .checkbox-inline { display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 500; }
.admin-form-row .errors { color: #b91c1c; font-size: 0.85rem; }
.admin-form-row.row-grid-2 { grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 700px) { .admin-form-row.row-grid-2 { grid-template-columns: 1fr; } }
.admin-form-actions { display: flex; gap: 0.5rem; padding-top: 1rem; border-top: 1px solid #e5e7eb; margin-top: 1rem; }

/* === Section Builder === */
.sb-root { display: grid; gap: 0.75rem; }
.sb-toolbar { display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 0.75rem; background: #f1f5f9; border-radius: 10px; border: 1px dashed #cbd5e1; }
.sb-toolbar-label { font-weight: 700; color: #475569; align-self: center; font-size: 0.85rem; margin-right: 0.5rem; }
.sb-card { border: 1px solid #e2e8f0; border-radius: 10px; background: #fff; box-shadow: 0 1px 2px rgba(0,0,0,0.04); }
.sb-card-head { display: flex; align-items: center; justify-content: space-between; padding: 0.6rem 0.85rem; background: #f8fafc; border-bottom: 1px solid #e2e8f0; border-radius: 10px 10px 0 0; cursor: grab; }
.sb-card-head:active { cursor: grabbing; }
.sb-card-type { font-weight: 700; color: #1e293b; text-transform: capitalize; font-size: 0.9rem; }
.sb-card-type::before { content: '⠿'; margin-right: 0.5rem; color: #94a3b8; }
.sb-card-actions { display: flex; gap: 0.25rem; }
.sb-card-actions button { background: transparent; border: none; padding: 0.25rem 0.5rem; cursor: pointer; color: #64748b; font-size: 0.95rem; border-radius: 4px; }
.sb-card-actions button:hover { background: #e2e8f0; color: #1e293b; }
.sb-card-body { padding: 0.85rem; display: grid; gap: 0.75rem; }
.sb-card-body label { font-weight: 600; color: #475569; font-size: 0.85rem; display: block; margin-bottom: 0.25rem; }
.sb-card-body input[type="text"],
.sb-card-body textarea { width: 100%; padding: 0.45rem 0.6rem; border: 1px solid #cbd5e1; border-radius: 6px; font-size: 0.9rem; box-sizing: border-box; font-family: inherit; }
.sb-card-body textarea { min-height: 70px; resize: vertical; }
.sb-list { display: grid; gap: 0.4rem; }
.sb-list-item { display: flex; gap: 0.4rem; align-items: center; }
.sb-list-item input { flex: 1; }
.sb-list-item .remove-row { background: #fee2e2; color: #b91c1c; border: none; padding: 0.35rem 0.55rem; border-radius: 6px; cursor: pointer; font-size: 0.8rem; }
.sb-list-item .remove-row:hover { background: #fecaca; }
.sb-add-row { background: #eff6ff; color: #1d4ed8; border: 1px dashed #93c5fd; padding: 0.35rem 0.7rem; border-radius: 6px; cursor: pointer; font-size: 0.8rem; font-weight: 600; justify-self: start; }
.sb-add-row:hover { background: #dbeafe; }
.sb-empty { text-align: center; padding: 2rem; color: #94a3b8; border: 2px dashed #e2e8f0; border-radius: 10px; }
.sb-dragging { opacity: 0.4; }
.sb-drop-target { border-top: 3px solid #2563eb; }

/* === Question options editor === */
.qo-root { display: grid; gap: 0.5rem; }
.qo-row { display: flex; gap: 0.5rem; align-items: center; }
.qo-row input[type="text"] { flex: 1; }
.qo-row .correct-marker { display: inline-flex; align-items: center; gap: 0.3rem; font-size: 0.85rem; color: #64748b; }
.qo-help { font-size: 0.85rem; color: #64748b; }

/* === Badges & misc === */
.admin-badge { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.72rem; font-weight: 700; background: #e2e8f0; color: #475569; }
.admin-badge-green { background: #d1fae5; color: #065f46; }
.admin-badge-red { background: #fee2e2; color: #991b1b; }
.admin-badge-blue { background: #dbeafe; color: #1e40af; }

/* === Dashboard tiles === */
.admin-tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.admin-tile { padding: 1.25rem; border-radius: 12px; background: #f8fafc; border: 1px solid #e2e8f0; text-decoration: none; color: inherit; display: flex; flex-direction: column; gap: 0.4rem; transition: transform .1s, box-shadow .1s; }
.admin-tile:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.admin-tile-icon { font-size: 1.8rem; }
.admin-tile-label { font-weight: 700; color: #0f172a; }
.admin-tile-count { font-size: 1.6rem; font-weight: 800; color: #2563eb; font-family: 'Fredoka', sans-serif; }