/* Responsive Styles */

/* ===== Tablet (768px - 991px) ===== */
@media (max-width: 991px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .locks-grid {
        grid-template-columns: 1fr;
    }

    .quote-layout {
        grid-template-columns: 1fr;
    }

    .quote-image {
        display: none;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }

    .slider-container {
        aspect-ratio: 16 / 12;
    }

    .slide-caption {
        padding: var(--space-4);
    }

    .slide-caption h2 {
        font-size: var(--text-2xl);
    }
}

/* ===== Mobile (< 768px) ===== */
@media (max-width: 767px) {
    .site-header {
        padding: var(--space-3) 0;
    }

    .vrc_logo {
        height: 88px;
        margin: 0 auto;
        float: none;
    }

    /* Mobile navigation */
    .nav-container {
        justify-content: flex-end;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--primary-dark);
        padding: var(--space-2);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: var(--space-3) var(--space-4);
        border-radius: var(--radius-sm);
    }

    /* Hamburger animation */
    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Slider mobile */
    .slider-container {
        aspect-ratio: 4 / 3;
    }

    .slide-caption {
        padding: var(--space-4);
        width: 95%;
    }

    .slide-caption h2 {
        font-size: var(--text-lg);
    }

    .slide-caption p {
        font-size: var(--text-base);
    }

    .slider-arrow {
        width: 36px;
        height: 36px;
    }

    .slider-arrow svg {
        width: 18px;
        height: 18px;
    }

    /* Feature grid mobile */
    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    /* Lock types mobile */
    .locks-grid {
        grid-template-columns: 1fr;
    }

    /* Clients mobile */
    .clients-grid {
        gap: var(--space-5);
    }

    .client-logo {
        max-width: 440px;
        max-height: 200px;
    }

    /* Services mobile */
    .service-media {
        flex-direction: column;
    }

    .service-media img {
        width: 100%;
    }

    /* Quote form mobile */
    .quote-form {
        padding: var(--space-4);
    }

    /* Footer mobile */
    .footer-copyright {
        flex-direction: column;
        text-align: center;
    }

    .footer-copyright nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-notes {
        text-align: left;
    }
}

/* ===== Large Desktop (≥ 1200px) ===== */
@media (min-width: 1200px) {
    .slider-container {
        max-height: 750px;
    }
}