:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --bg: #f4f6f9;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --text: #1e293b;
    --text-muted: #64748b;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.container.narrow, .narrow { max-width: 420px; margin: 40px auto; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    flex-wrap: wrap;
    gap: 12px;
}
.topbar .brand { font-weight: 700; font-size: 1.1rem; color: var(--primary); }
.topbar nav { display: flex; gap: 16px; flex-wrap: wrap; }
.topbar nav a { color: var(--text); text-decoration: none; font-size: 0.95rem; }
.topbar nav a:hover { color: var(--primary); }
.userbox { display: flex; align-items: center; gap: 12px; font-size: 0.9rem; color: var(--text-muted); }

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    max-width: 480px;
}

label { display: block; margin-bottom: 14px; font-size: 0.9rem; color: var(--text-muted); }
input, select, textarea {
    width: 100%;
    padding: 9px 10px;
    margin-top: 4px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    background: #fff;
    color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

button, .btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 9px 16px;
    border-radius: 6px;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
}
button:hover, .btn:hover { background: var(--primary-dark); }

.btn-link { background: none; border: none; color: var(--primary); cursor: pointer; text-decoration: none; padding: 0; font-size: 0.9rem; }
.btn-link.danger { color: var(--danger); }
.inline-form { display: inline; }

.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }

.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; font-size: 0.9rem; }
.flash.success { background: #dcfce7; color: #166534; }
.flash.error { background: #fee2e2; color: #991b1b; }

.data-table { width: 100%; border-collapse: collapse; background: var(--card-bg); border-radius: 8px; overflow: hidden; }
.data-table th, .data-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.data-table th { background: #f8fafc; color: var(--text-muted); font-weight: 600; }
.data-table td a { color: var(--primary); text-decoration: none; margin-right: 10px; }

.badge { padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; text-transform: capitalize; }
.badge.active { background: #dcfce7; color: #166534; }
.badge.inactive { background: #f1f5f9; color: #475569; }
.badge.suspended { background: #fee2e2; color: #991b1b; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; margin-top: 16px; }
.stat-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 20px; display: flex; flex-direction: column; gap: 4px; }
.stat-num { font-size: 1.8rem; font-weight: 700; color: var(--primary); }

.filter-bar { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.filter-bar input[type="text"] { width: auto; min-width: 240px; margin-top: 0; }
.filter-bar select { width: auto; margin-top: 0; }
.filter-bar button { padding: 9px 14px; }

.pagination { display: flex; align-items: center; gap: 16px; margin-top: 16px; font-size: 0.9rem; }
.pagination a { color: var(--primary); text-decoration: none; }
.pagination span { color: var(--text-muted); }