:root {
    --brand-primary: #2b6cb0;
    --brand-primary-dark: #1e4e8c;
    --sidebar-width: 240px;
}

body {
    background-color: #f4f6f9;
}

/* ---------------------------------------------------- Navbar ---- */

.app-navbar {
    background-color: var(--brand-primary-dark);
    padding: 0.6rem 1rem;
}

.app-navbar .navbar-brand {
    color: #fff;
    font-weight: 600;
}

/* ---------------------------------------------------- Shell ----- */

.app-shell {
    display: flex;
    min-height: calc(100vh - 56px);
}

.app-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background-color: #fff;
    border-right: 1px solid #e2e8f0;
    padding-top: 1rem;
}

.app-sidebar .nav-link {
    color: #334155;
    padding: 0.65rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    border-left: 3px solid transparent;
}

.app-sidebar .nav-link i {
    font-size: 1.1rem;
    width: 1.2rem;
}

.app-sidebar .nav-link:hover {
    background-color: #f1f5f9;
}

.app-sidebar .nav-link.active {
    background-color: #eaf2fb;
    color: var(--brand-primary);
    border-left-color: var(--brand-primary);
    font-weight: 600;
}

.app-content {
    flex: 1;
    padding: 1.75rem;
    min-width: 0;
}

/* ---------------------------------------------------- Cards ----- */

.card {
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
}

.stat-card .card-body {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    color: #64748b;
    font-size: 0.85rem;
}

/* ---------------------------------------------------- Login ----- */

.login-body {
    background: linear-gradient(135deg, var(--brand-primary-dark), var(--brand-primary));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
    padding: 1rem;
}

.login-card {
    border: none;
    border-radius: 0.75rem;
}

@media (max-width: 767.98px) {
    .app-sidebar {
        display: none;
    }
}