:root {
    --bg: #0a0a0a;
    --card: #141414;
    --border: #2a2a2a;
    --primary: #3b82f6;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text: #e5e5e5;
    --muted: #737373;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Login */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-box {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
}
.login-box h1 { font-size: 1.5rem; margin-bottom: 8px; text-align: center; }
.login-box .sub { color: var(--muted); text-align: center; margin-bottom: 30px; font-size: 0.9rem; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px;
    background: var(--card);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}
.sidebar .logo { padding: 0 20px 20px; font-size: 1.1rem; font-weight: 700; border-bottom: 1px solid var(--border); }
.sidebar nav { padding: 10px 0; }
.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--muted);
    font-size: 0.9rem;
    transition: all 0.15s;
}
.sidebar nav a:hover, .sidebar nav a.active {
    color: var(--text);
    background: rgba(255,255,255,0.05);
    text-decoration: none;
}
.sidebar nav a.active { border-right: 2px solid var(--primary); }

.main { margin-left: 240px; flex: 1; padding: 30px; }
.main h2 { font-size: 1.4rem; margin-bottom: 20px; }

/* Cards */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 30px; }
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}
.stat-card .label { font-size: 0.8rem; color: var(--muted); margin-bottom: 6px; }
.stat-card .value { font-size: 1.8rem; font-weight: 700; }
.stat-card .change { font-size: 0.8rem; margin-top: 4px; }
.stat-card .change.up { color: var(--success); }
.stat-card .change.down { color: var(--danger); }

/* Table */
.table-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 12px 16px; font-size: 0.75rem; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--border); }
td { padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-a1 { background: #1e3a5f; color: #60a5fa; }
.badge-a2 { background: #1a3c34; color: #4ade80; }
.badge-b1 { background: #3b2f1a; color: #fbbf24; }
.badge-b2 { background: #3b1f1a; color: #fb923c; }
.badge-c1 { background: #3b1a2f; color: #f472b6; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 6px; }
input[type="text"], input[type="password"], input[type="email"], input[type="number"],
select, textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.9rem;
    outline: none;
    transition: border 0.15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }
textarea { resize: vertical; min-height: 100px; }

.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: #2563eb; text-decoration: none; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

/* Alert */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.alert-error { background: #2d1215; border: 1px solid #7f1d1d; color: #fca5a5; }
.alert-success { background: #052e16; border: 1px solid #166534; color: #86efac; }

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 100;
    align-items: center;
    justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 30px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}
.modal h3 { margin-bottom: 20px; }

/* Toolbar */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 12px;
}
.toolbar .search {
    flex: 1;
    max-width: 300px;
}