:root {
    --navy: #0B1F3A;
    --navy-light: #14305a;
    --gold: #C8A415;
    --gold-light: #e3c34a;
    --bg: #f4f6f9;
    --text: #1d2733;
    --muted: #6b7686;
    --border: #e1e5eb;
    --danger: #c0392b;
    --success: #1e8449;
    --warning: #b9770e;
}

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

/* ---------- Layout ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    background: var(--navy);
    color: #fff;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}
.sidebar .brand {
    padding: 22px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.sidebar .brand h1 {
    font-size: 16px;
    margin: 0;
    color: var(--gold-light);
    line-height: 1.3;
}
.sidebar .brand span {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
}
.sidebar nav { flex: 1; padding: 10px 0; }
.sidebar nav a {
    display: block;
    padding: 11px 22px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 14px;
    border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.sidebar nav a.active {
    background: rgba(200,164,21,0.12);
    border-left-color: var(--gold);
    color: var(--gold-light);
    font-weight: 600;
}
.sidebar .user-box {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 12px;
    color: rgba(255,255,255,0.6);
}
.sidebar .user-box a { color: var(--gold-light); text-decoration: none; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 16px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.topbar h2 { margin: 0; font-size: 19px; }
.content { padding: 28px; flex: 1; }

/* ---------- Cards / KPIs ---------- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.kpi-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 20px;
}
.kpi-card .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.kpi-card .value { font-size: 26px; font-weight: 700; margin-top: 6px; color: var(--navy); }
.kpi-card .value.gold { color: var(--gold); }

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 22px;
}

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: #fafbfc; }

/* ---------- Forms ---------- */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
input, select, textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    margin-bottom: 16px;
    font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--navy); }

.btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 6px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    color: #fff;
    background: var(--navy);
}
.btn:hover { background: var(--navy-light); }
.btn.gold { background: var(--gold); color: var(--navy); }
.btn.gold:hover { background: var(--gold-light); }
.btn.danger { background: var(--danger); }
.btn.outline { background: transparent; color: var(--navy); border: 1px solid var(--border); }

.badge { padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge.active { background: #e3f4e8; color: var(--success); }
.badge.inactive { background: #fbe9e7; color: var(--danger); }

.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 18px; font-size: 14px; }
.alert.error { background: #fbe9e7; color: var(--danger); }
.alert.success { background: #e3f4e8; color: var(--success); }

/* ---------- Login page ---------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy), #050f1f);
}
.login-box {
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    width: 360px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-box h1 { font-size: 18px; color: var(--navy); margin-bottom: 4px; }
.login-box p.sub { color: var(--muted); font-size: 13px; margin-bottom: 24px; }