/* ============================================
   VTA Group - Responsive Styles
   Breakpoints: 1200px, 992px, 768px, 576px
   ============================================ */

@media (max-width: 1199px) {
    .header__info {
        gap: 20px;
    }

    .header__info-item i {
        font-size: 20px;
    }

    .main-nav__item > a {
        padding: 0 10px;
        font-size: 12px;
    }

    .main-nav__brand {
        width: 156px;
    }

    .main-nav__menu {
        margin-left: clamp(28px, 5vw, 72px);
        gap: 4px;
    }

    .hero-slider__slide {
        height: 450px;
    }

    .hero-slider__content h1 {
        font-size: 36px;
    }

    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .industries__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .news__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .value-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 991px) {
    .header__info {
        display: none;
    }

    .header__inner {
        justify-content: center;
    }

    /* Mobile Navigation */
    .main-nav {
        position: sticky;
        top: 0;
        margin-bottom: 0;
    }

    .main-nav__toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        position: relative;
        z-index: 1002;
    }

    .main-nav__toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .main-nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .main-nav__toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .main-nav__inner {
        flex-wrap: nowrap;
        min-height: 58px;
        padding: 8px 0;
        gap: 14px;
    }

    .main-nav__brand {
        order: 1;
        margin-right: auto;
        width: 150px;
    }

    .main-nav__toggle {
        order: 3;
    }

    .main-nav__menu {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: min(86vw, 380px);
        height: 100vh;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        margin: 0;
        padding: 84px 20px 24px;
        background: var(--color-white);
        box-shadow: 24px 0 60px rgba(0, 0, 0, 0.16);
        transform: translateX(-105%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s ease;
        overflow-y: auto;
        z-index: 1001;
    }

    .main-nav__menu .main-nav__item > a {
        color: var(--color-dark);
    }

    .main-nav__menu .main-nav__item > a:hover,
    .main-nav__menu .main-nav__item.active > a {
        color: var(--color-accent-dark);
        background: rgba(90, 176, 199, 0.1);
    }

    .main-nav__menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    body.nav-open::after {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.52);
        z-index: 1000;
    }

    .main-nav__item > a {
        justify-content: space-between;
        padding: 13px 14px;
        border-bottom: 1px solid var(--color-border);
        width: 100%;
        color: var(--color-dark);
        border-radius: var(--radius-md);
    }

    .main-nav__dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        display: none;
        width: 100%;
        min-width: 0;
        margin: 4px 0 8px;
        background: var(--color-light);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        overflow: hidden;
    }

    .main-nav__mega {
        left: auto;
        width: 100%;
        padding: 14px;
        grid-template-columns: 1fr;
        border-radius: var(--radius-md);
        transform: none;
    }

    .main-nav__item--dropdown:hover .main-nav__mega,
    .main-nav__item--dropdown:focus-within .main-nav__mega {
        transform: none;
    }

    .main-nav__mega-card {
        min-height: 150px;
    }

    .main-nav__item--dropdown.open .main-nav__dropdown {
        display: block;
    }

    .main-nav__dropdown li a {
        padding-left: 18px;
        color: var(--color-dark);
    }

    .main-nav__mega .main-nav__mega-col a:hover,
    .main-nav__mega .main-nav__mega-col a:focus-visible {
        padding-left: 18px;
    }

    .main-nav__search {
        order: 2;
        flex: 0 0 44px;
        width: 44px;
        margin-left: auto;
        padding-top: 0;
        border-left: none;
    }

    .main-nav__search:hover,
    .main-nav__search:focus-within {
        flex-basis: 44px;
        width: 44px;
    }

    .main-nav__search input {
        width: 44px;
    }

    .main-nav__search:focus-within input {
        width: min(160px, 42vw);
        min-width: min(160px, 42vw);
    }

    /* Hero */
    .hero-slider__slide {
        height: 400px;
    }

    .hero-slider__content h1 {
        font-size: 30px;
    }

    .hero-slider__content p {
        font-size: 15px;
    }

    .impact-story {
        padding: 60px 0;
    }

    .impact-story__inner {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .impact-story__sticky {
        position: relative;
        top: auto;
        text-align: center;
    }

    .impact-story__sticky h2,
    .impact-story__sticky p {
        margin-left: auto;
        margin-right: auto;
    }

    /* About */
    .about__inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about__content .section__title,
    .about__content .section__label {
        text-align: center;
    }

    .about__content {
        text-align: center;
    }

    .about__stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .value-grid,
    .capability__inner {
        grid-template-columns: 1fr;
    }

    .capability__content,
    .capability__content .section__title {
        text-align: center;
    }

    /* Fleet */
    .fleet__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Footer */
    .footer__inner {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .top-bar__welcome {
        display: none;
    }

    .top-bar__right {
        width: 100%;
        justify-content: space-between;
    }

    .top-bar__inner {
        justify-content: center;
    }

    .header__logo-name {
        font-size: 26px;
    }

    /* Hero */
    .hero-slider__slide {
        height: 350px;
    }

    .hero-slider__content h1 {
        font-size: 26px;
    }

    .hero-slider__content h2 {
        font-size: 14px;
    }

    .hero-slider__content p {
        font-size: 14px;
    }

    .hero-slider__motion {
        opacity: 0.22;
    }

    .hero-swiper .swiper-button-prev,
    .hero-swiper .swiper-button-next {
        display: none;
    }

    /* Services */
    .services__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .value-grid,
    .capability__grid,
    .industries__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    /* Why Us */
    .why-us__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    /* Fleet */
    .fleet__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    /* News */
    .news__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .news-swiper .news__grid {
        max-width: none;
        margin: 0;
    }

    .news__toolbar {
        flex-direction: column;
        align-items: center;
        margin-top: -12px;
    }

    .impact-story__sticky h2 {
        font-size: 30px;
    }

    .impact-card {
        min-height: auto;
        padding: 22px;
    }

    /* Section */
    .section {
        padding: 40px 0;
    }

    .section__title {
        font-size: 26px;
    }

    .section__header {
        margin-bottom: 30px;
    }

    /* CTA */
    .cta {
        padding: 50px 0;
    }

    .cta__content h2 {
        font-size: 24px;
    }

    .cta__buttons {
        flex-direction: column;
    }

    /* Footer */
    .footer__inner {
        grid-template-columns: 1fr;
    }

    .footer__title::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer__col {
        text-align: center;
    }

    .footer__contact li {
        justify-content: center;
    }

    .footer__social {
        justify-content: center;
    }

    .footer__menu li a {
        justify-content: center;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

@media (max-width: 575px) {
    .container {
        padding: 0 10px;
    }

    .main-nav__inner {
        gap: 10px;
    }

    .main-nav__brand {
        width: 156px;
    }

    .top-bar__contact {
        flex-direction: column;
        gap: 2px;
    }

    .top-bar__contact a {
        font-size: 11px;
    }

    .about__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .about__stat-number {
        font-size: 24px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 13px;
    }
}