:root {
    --vista-blue: #2563eb;
    --vista-navy: #0f172a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0;
    transition: color 0.2s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0.15rem;
    width: 0;
    height: 2px;
    background: var(--vista-blue);
    border-radius: 999px;
    transform: translateX(-50%);
    transition: width 0.2s ease;
}

.nav-link:hover {
    color: var(--vista-blue);
}

.nav-link:hover::after {
    width: 100%;
}

.dropdown-menu {
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.dropdown-group:hover .dropdown-menu,
.dropdown-group:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-menu {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.3s ease, opacity 0.2s ease;
}

.mobile-menu.active {
    max-height: calc(100vh - 70px);
    overflow-y: auto;
    opacity: 1;
    pointer-events: auto;
}

.mobile-link {
    display: block;
    padding: 0.85rem 1rem;
    border-radius: 1rem;
    transition: background 0.2s ease, color 0.2s ease;
}

.mobile-link:hover {
    background: #eff6ff;
    color: #1d4ed8;
}

body.menu-open {
    overflow: hidden;
}

.page-alert-success {
    border: 1px solid #bbf7d0;
    background: #f0fdf4;
    color: #166534;
}

.page-alert-error {
    border: 1px solid #fecaca;
    background: #fef2f2;
    color: #991b1b;
}

.form-error-list li {
    margin-top: 0.25rem;
}