:root {
    --navy: #0D1F3C;
    --blue: #1E5FC2;
    --text: #1E293B;
    --border: rgba(30, 95, 194, 0.12);
    --danger: #B91C1C;
}

body {
    margin: 0;
    min-height: 100vh;
    background: #F8FAFC;
    color: var(--text);
    font-family: 'Inter', sans-serif;
}

.portal-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: var(--navy);
    color: #FFF;
    height: 100vh;
    position: fixed;
    padding: 24px 16px;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.content {
    flex: 1;
    margin-left: 280px;
    padding: 32px;
    background: #F1F5F9;
    min-height: 100vh;
}

.menu-link {
    color: rgba(255, 255, 255, 0.72);
    padding: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    border-radius: 10px;
    margin-bottom: 4px;
    transition: 0.2s;
}

.menu-link:hover,
.menu-link.active {
    background: rgba(255, 255, 255, 0.12);
    color: #FFF;
}

.menu-group-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin: 20px 12px 8px;
    letter-spacing: 1px;
}

.topbar {
    background: #FFF;
    padding: 16px 24px;
    border-radius: 16px;
    border: 1px solid var(--border);
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.auth-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: radial-gradient(circle at 20% 20%, rgba(30, 95, 194, 0.12), transparent 40%), #F8FAFC;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    border: 0;
    border-radius: 16px;
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.09);
}

.flash {
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.flash.success {
    background: #ECFDF5;
    border: 1px solid #A7F3D0;
    color: #065F46;
}

.flash.error {
    background: #FEF2F2;
    border: 1px solid #FECACA;
    color: var(--danger);
}

.card-stat {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #FFF;
    padding: 18px;
    height: 100%;
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .content {
        margin-left: 0;
        padding: 20px;
    }
}