body.app-shell {
    background:
        radial-gradient(circle at top left, rgba(58, 123, 213, 0.10), transparent 30%),
        linear-gradient(180deg, #f4f7fb 0%, #eef3f8 100%);
    color: #1f2937;
    min-height: 100vh;
}

.app-navbar {
    background: linear-gradient(135deg, #0f172a 0%, #16243f 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar-brand {
    letter-spacing: 0.04em;
}

.brand-mark {
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.7rem;
    background: linear-gradient(135deg, #2563eb 0%, #60a5fa 100%);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.25);
}

.navbar .nav-link {
    color: rgba(255, 255, 255, 0.82);
    border-radius: 0.8rem;
    padding: 0.55rem 0.9rem;
    transition: all 0.2s ease;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.10);
}

.hero-card,
.feature-card,
.info-panel {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: 1.5rem;
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
}

.hero-card {
    padding: 2rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.10);
    color: #1d4ed8;
    font-size: 0.85rem;
    font-weight: 600;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.1;
    font-weight: 800;
    color: #0f172a;
}

.hero-text,
.section-text,
.feature-text {
    color: #475569;
    font-size: 1.02rem;
    line-height: 1.7;
}

.hero-visual {
    min-height: 320px;
    border-radius: 1.35rem;
    background:
        linear-gradient(160deg, rgba(37, 99, 235, 0.12), rgba(15, 23, 42, 0.04)),
        #f8fbff;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-visual-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.hero-widget,
.feature-card {
    padding: 1.25rem;
}

.hero-widget {
    border-radius: 1rem;
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.hero-widget-label {
    font-size: 0.85rem;
    color: #64748b;
    margin-bottom: 0.4rem;
}

.hero-widget-value {
    font-size: 1.05rem;
    font-weight: 700;
    color: #0f172a;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 3rem;
    height: 3rem;
    padding: 0 0.9rem;
    border-radius: 0.85rem;
    background: linear-gradient(135deg, #1d4ed8 0%, #60a5fa 100%);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-title,
.section-title {
    font-weight: 700;
    color: #0f172a;
}

.info-panel {
    padding: 1.75rem;
}

.app-footer {
    background: #0f172a;
}

.footer-link {
    color: rgba(255, 255, 255, 0.78);
    text-decoration: none;
}

.footer-link:hover {
    color: #ffffff;
}

.btn {
    border-radius: 0.9rem;
    font-weight: 600;
}

.btn-primary {
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.25);
}

.alert {
    border-radius: 1rem;
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        margin-top: 1rem;
        padding: 1rem;
        border-radius: 1rem;
        background: rgba(255, 255, 255, 0.06);
    }

    .hero-card {
        padding: 1.35rem;
    }

    .hero-visual-grid {
        grid-template-columns: 1fr;
    }
}

.table {
    --bs-table-bg: transparent;
}

.table thead th {
    color: #475569;
    font-size: 0.9rem;
    font-weight: 700;
    border-bottom-width: 1px;
}

.table tbody td {
    vertical-align: middle;
}

code {
    color: #1d4ed8;
    background: rgba(37, 99, 235, 0.08);
    padding: 0.2rem 0.45rem;
    border-radius: 0.45rem;
}

.form-control,
.form-select {
    border-radius: 0.9rem;
    min-height: 48px;
}

textarea.form-control {
    min-height: 140px;
}

.text-break {
    word-break: break-word;
}

.pagination {
    gap: 0.35rem;
}

.page-link {
    border-radius: 0.75rem !important;
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: #1d4ed8;
    box-shadow: none !important;
}

.page-item.active .page-link {
    background: #1d4ed8;
    border-color: #1d4ed8;
}

.hero-widget {
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

a .hero-widget:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.10);
    border-color: rgba(37, 99, 235, 0.20);
}

.badge.text-bg-light.border {
    color: #0f172a !important;
    background: #f8fafc !important;
    border-color: rgba(15, 23, 42, 0.10) !important;
}

.table a {
    word-break: break-word;
}

.form-text {
    color: #64748b;
}

.invalid-feedback {
    display: block;
}