:root {
    --mon-primary: #4f46e5;
    --mon-primary-dark: #4338ca;
    --mon-bg: #f3f4f6;
    --mon-sidebar-w: 220px;
}

html, body {
    background: var(--mon-bg);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Layout: sidebar + content ─────────────────────────────────────────── */
.app-sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--mon-sidebar-w);
    background: #111827;
    color: #d1d5db;
    display: flex;
    flex-direction: column;
    z-index: 40;
    transition: transform .2s ease;
}
.app-sidebar .brand {
    padding: 18px 20px;
    font-weight: 700;
    color: #fff;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.app-sidebar nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.app-sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: #d1d5db;
    text-decoration: none;
    font-size: .875rem;
    margin-bottom: 2px;
}
.app-sidebar nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.app-sidebar nav a.active { background: var(--mon-primary); color: #fff; }
.app-sidebar .sidebar-footer {
    padding: 14px 16px;
    border-top: 1px solid rgba(255,255,255,.08);
    font-size: .75rem;
    color: #9ca3af;
}

.app-main {
    margin-left: var(--mon-sidebar-w);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.app-topbar {
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 20;
}
.app-topbar h1 { font-size: 1.05rem; font-weight: 700; margin: 0; color: #111827; }
.app-content { flex: 1; padding: 24px; }

/* Toggle sidebar di layar kecil */
.sidebar-toggle { display: none; }
@media (max-width: 900px) {
    .app-sidebar { transform: translateX(-100%); }
    .app-sidebar.open { transform: translateX(0); }
    .app-main { margin-left: 0; }
    .sidebar-toggle { display: inline-flex; }
}

/* ── Cards & stat tiles ───────────────────────────────────────────────── */
.card-mon {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
    border: none;
}
.stat-tile {
    background: #fff;
    border-radius: 14px;
    padding: 18px 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.stat-tile .stat-label { font-size: 12.5px; color: #6b7280; margin-bottom: 6px; }
.stat-tile .stat-value { font-size: 1.4rem; font-weight: 700; color: #111827; }

.btn-mon-primary {
    background: var(--mon-primary);
    border: none;
    color: #fff;
    font-weight: 600;
}
.btn-mon-primary:hover, .btn-mon-primary:active { background: var(--mon-primary-dark); color: #fff; }

/* ── Auth pages ───────────────────────────────────────────────────────── */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    background: linear-gradient(160deg, var(--mon-primary) 0%, #1e1b4b 100%);
}
.auth-card {
    width: 100%;
    max-width: 380px;
    background: #fff;
    border-radius: 20px;
    padding: 32px 24px;
    box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.auth-logo {
    width: 64px; height: 64px;
    border-radius: 18px;
    background: var(--mon-primary);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px;
}

.table-responsive-mon { overflow-x: auto; }