:root {
    --app-sidebar-width: 260px;
    --app-radius: 0.85rem;
}

body {
    min-height: 100vh;
    background: var(--bs-tertiary-bg);
}

.app-navbar {
    min-height: 58px;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 0.65rem;
    background: rgba(255, 255, 255, 0.14);
}

.sidebar {
    min-height: calc(100vh - 58px);
    background: var(--bs-body-bg);
}

.sidebar-scroll {
    top: 58px;
    max-height: calc(100vh - 58px);
    overflow-y: auto;
}

.sidebar-section + .sidebar-section {
    margin-top: 1.35rem;
}

.sidebar-heading {
    padding: 0 0.75rem 0.45rem;
    color: var(--bs-secondary-color);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.sidebar .nav-link,
.sidebar-mobile .nav-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.62rem 0.75rem;
    color: var(--bs-body-color);
    border-radius: 0.65rem;
    transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.sidebar .nav-link i,
.sidebar-mobile .nav-link i {
    width: 1.25rem;
    text-align: center;
    color: var(--bs-secondary-color);
}

.sidebar .nav-link:hover,
.sidebar-mobile .nav-link:hover {
    background: var(--bs-tertiary-bg);
    transform: translateX(2px);
}

.sidebar .nav-link.active,
.sidebar-mobile .nav-link.active {
    color: var(--bs-primary-text-emphasis);
    font-weight: 600;
    background: var(--bs-primary-bg-subtle);
}

.sidebar .nav-link.active i,
.sidebar-mobile .nav-link.active i {
    color: var(--bs-primary);
}

.app-main {
    min-width: 0;
}

.page-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.card {
    border: 1px solid var(--bs-border-color-translucent);
    border-radius: var(--app-radius);
    box-shadow: 0 0.35rem 1.25rem rgba(16, 24, 40, 0.055);
}

.card-header {
    border-bottom-color: var(--bs-border-color-translucent);
    background: transparent;
}

.table-responsive {
    border-radius: var(--app-radius);
}

.table > :not(caption) > * > * {
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
}

.btn,
.form-control,
.form-select,
.input-group-text {
    border-radius: 0.6rem;
}

.alert {
    border: 0;
    border-radius: 0.75rem;
}

.login-bg {
    background: linear-gradient(135deg, var(--bs-tertiary-bg), var(--bs-secondary-bg));
}

.login-card {
    width: 100%;
    max-width: 420px;
}

[data-bs-theme="dark"] .card {
    box-shadow: 0 0.35rem 1.25rem rgba(0, 0, 0, 0.18);
}

@media (max-width: 767.98px) {
    .app-main {
        padding-top: 1.25rem !important;
    }

    .page-heading {
        margin-bottom: 1.25rem !important;
    }

    .page-heading h1 {
        font-size: 1.45rem;
    }

    .card-body {
        padding: 1rem;
    }

    .table {
        font-size: 0.9rem;
    }
}