/* Responsive Design */

:root {
    --header-height: 72px;
}

html {
    width: 100%;
    overflow-x: hidden;
}

body {
    width: 100%;
    min-width: 0;
    overflow-x: hidden;
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--body-bg);
}

img,
video,
iframe {
    max-width: 100%;
}

iframe {
    width: 100%;
    border: 0;
}

section {
    scroll-margin-top: var(--header-height);
}

.container,
.nav-container {
    width: min(calc(100% - 2rem), 1200px);
    max-width: 1200px;
    padding-left: 0;
    padding-right: 0;
}

.header {
    min-height: var(--header-height);
}

.navbar {
    padding: 0.85rem 0;
}

.nav-container {
    min-height: 44px;
}

.nav-logo {
    min-width: 0;
    flex: 1 1 auto;
}

.logo-img {
    flex: 0 0 auto;
}

.logo-text {
    font-size: clamp(1.25rem, 2.2vw, 1.65rem);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-actions {
    flex: 0 0 auto;
}

.nav-toggle {
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
}

.bar {
    flex: 0 0 auto;
}

.hero {
    height: auto;
    min-height: 100svh;
}

.hero-video-container {
    inset: 0;
}

.hero-content {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: none;
    padding: calc(var(--header-height) + 2rem) 0 2.5rem;
}

.hero-content .container {
    max-width: 900px;
}

.hero-title {
    color: var(--white);
    font-size: clamp(2.1rem, 5.5vw, 3.75rem);
    text-shadow: 0 3px 18px rgba(0, 0, 0, 0.55);
    overflow-wrap: anywhere;
}

.hero-tagline {
    color: #dff7d9;
    font-size: clamp(1rem, 2.2vw, var(--font-size-xl));
    letter-spacing: 0.04em;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 255, 255, 0.92);
    font-size: clamp(1rem, 2vw, var(--font-size-large));
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    gap: 0.75rem;
}

.page-header {
    padding: calc(var(--header-height) + 2.75rem) 0 clamp(2rem, 6vw, var(--spacing-xl));
}

.page-header h1 {
    font-size: clamp(2rem, 5vw, var(--font-size-4xl));
    overflow-wrap: anywhere;
}

.page-header h2 {
    font-size: clamp(1.25rem, 3vw, var(--font-size-2xl));
    color: var(--light-green);
}

.page-header p {
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.page-tagline {
    font-size: clamp(1rem, 2.4vw, var(--font-size-xl));
    letter-spacing: 0.03em;
}

.features,
.products-preview,
.stats,
.products-categories,
.quality-assurance,
.services-overview,
.process-flow,
.contact-info-section,
.contact-form-section,
.tracking-form-section,
.tracking-result-section,
.tracking-features,
.company-story,
.mission-vision,
.company-values,
.team-section,
.map-section,
.certifications-section,
.about-intro,
.terms-content {
    padding-top: clamp(2.5rem, 7vw, var(--spacing-2xl));
    padding-bottom: clamp(2.5rem, 7vw, var(--spacing-2xl));
}

.features-grid,
.products-grid,
.stats-grid,
.footer-content,
.services-grid,
.process-steps,
.contact-grid,
.info-grid,
.mission-vision-grid,
.values-grid,
.team-grid,
.certifications-grid,
.about-highlights,
.quality-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
    gap: clamp(1rem, 3vw, var(--spacing-xl));
}

.products-categories .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

.product-card,
.product-item,
.feature-card,
.service-card,
.contact-card,
.mission-card,
.vision-card,
.value-card,
.cert-card,
.quality-item,
.terms-wrapper,
.contact-form-container,
.tracking-form-container,
.tracking-result-container {
    min-width: 0;
}

.product-img,
.product-image,
.story-img {
    width: 100%;
    object-fit: cover;
}

.product-img {
    aspect-ratio: 4 / 3;
    height: auto;
}

.product-image {
    aspect-ratio: 4 / 3;
    height: auto;
}

.story-content {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.contact-form-container,
.tracking-form-container,
.tracking-result-container,
.terms-wrapper,
.about-intro-wrap {
    width: 100%;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    min-width: 0;
}

.checkbox-label {
    align-items: flex-start;
}

.tracking-actions {
    flex-wrap: wrap;
}

.tracking-actions .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tracking-timeline .timeline {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0 0 var(--spacing-xl);
}

.tracking-timeline .timeline:before {
    left: 15px;
    transform: none;
    background: var(--light-green);
}

.tracking-timeline .timeline-item {
    display: block;
    margin-bottom: var(--spacing-xl);
}

.tracking-timeline .timeline-marker {
    top: 0;
    left: -25px;
}

.tracking-timeline .timeline-content {
    margin: 0 0 0 var(--spacing-md);
}

.footer-logo,
.contact-info p {
    min-width: 0;
}

.footer-bottom p,
.footer-section p,
.contact-info p,
.contact-card p,
.terms-section p,
.terms-section li,
.tracking-number,
.info-item,
.spec {
    overflow-wrap: anywhere;
}

.floating-contact {
    right: max(1.25rem, env(safe-area-inset-right));
    bottom: max(1.25rem, env(safe-area-inset-bottom));
}

/* Large Desktop */
@media (min-width: 1400px) {
    .container,
    .nav-container {
        max-width: 1320px;
    }
}

/* Desktop */
@media (max-width: 1199px) {
    .nav-list {
        gap: var(--spacing-sm);
    }

    .nav-link {
        padding: var(--spacing-xs) 0.75rem;
    }
}

/* Tablet */
@media (max-width: 991px) {
    .nav-menu {
        position: fixed;
        left: 0;
        right: 0;
        top: var(--header-height);
        display: block;
        width: 100%;
        max-height: calc(100svh - var(--header-height));
        overflow-y: auto;
        background-color: var(--header-bg);
        text-align: center;
        box-shadow: var(--shadow-md);
        padding: var(--spacing-md) 0 var(--spacing-lg);
        transform: translateX(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-list {
        width: min(calc(100% - 2rem), 480px);
        margin: 0 auto;
        flex-direction: column;
        gap: 0.35rem;
    }

    .nav-link {
        display: block;
        padding: 0.85rem 1rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .hero-content .container {
        max-width: 760px;
    }

    .story-content,
    .form-row {
        grid-template-columns: 1fr;
    }

    .story-image {
        max-width: 720px;
        margin: 0 auto;
    }

    .mission-vision-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-container,
    .tracking-form-container,
    .tracking-result-container,
    .terms-wrapper,
    .about-intro-wrap {
        padding: var(--spacing-xl);
    }

    .tracking-header {
        align-items: flex-start;
    }
}

/* Mobile Large */
@media (max-width: 767px) {
    :root {
        --header-height: 64px;
    }

    .container,
    .nav-container {
        width: min(calc(100% - 1.5rem), 1200px);
    }

    .navbar {
        padding: 0.6rem 0;
    }

    .logo-img {
        width: 44px;
        height: 44px;
    }

    .hero {
        min-height: 100svh;
    }

    .hero-video-container {
        background-image: url("../assets/mobile-export-hero.png");
        background-color: #f4f9fc;
        background-size: 100% auto;
        background-position: center top;
        background-repeat: no-repeat;
    }

    .hero-video-bg {
        display: none;
    }

    .hero-overlay {
        background: linear-gradient(
            to top,
            rgba(5, 18, 31, 0.72) 0%,
            rgba(5, 18, 31, 0.18) 28%,
            rgba(5, 18, 31, 0) 58%
        );
    }

    .hero-content {
        align-items: flex-end;
        padding: calc(var(--header-height) + 1.25rem) 0 1.25rem;
    }

    .hero-title,
    .hero-tagline,
    .hero-subtitle {
        display: none;
    }

    .hero-buttons {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    .hero-buttons .btn,
    .contact-form .btn,
    .tracking-form .btn,
    .tracking-actions .btn {
        width: 100%;
        max-width: 340px;
    }

    .hero-buttons .btn {
        max-width: none;
        min-height: 48px;
        padding: 0.85rem 0.65rem;
        border-radius: 6px;
        font-size: 0.82rem;
        box-shadow: 0 8px 22px rgba(0, 0, 0, 0.25);
    }

    .page-header {
        padding-top: calc(var(--header-height) + 2rem);
    }

    .page-header h2 {
        font-size: clamp(1.12rem, 5.2vw, 1.45rem);
        line-height: 1.4;
    }

    .story-text h2 {
        text-align: center;
    }

    .story-text p {
        font-size: 0.96rem;
        line-height: 1.75;
    }

    .contact-card h3 {
        font-size: 1.15rem;
    }

    .product-info h3,
    .service-card h3,
    .quality-item h3,
    .process-step h3,
    .tracking-timeline h3,
    .order-info h3 {
        font-size: 1.12rem;
        line-height: 1.35;
    }

    .contact-card p,
    .form-header p,
    .product-info p,
    .service-card p,
    .quality-item p,
    .process-step p,
    .timeline-content p,
    .timeline-content .location {
        font-size: 0.95rem;
        line-height: 1.65;
    }

    .service-card p {
        min-height: 0;
    }

    .tracking-header h2,
    .tracking-features h2 {
        font-size: clamp(1.6rem, 7vw, 2rem);
        line-height: 1.25;
    }

    .tracking-header {
        gap: 0.85rem;
    }

    .tracking-number {
        font-size: 0.9rem;
    }

    .service-features {
        padding: 0.75rem 0.9rem;
    }

    .service-features li,
    .spec {
        font-size: 0.84rem;
    }

    .form-header h2 {
        font-size: clamp(1.6rem, 7vw, 2rem);
    }

    .form-group label {
        font-size: 0.9rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.9rem;
    }

    .story-lede {
        font-size: 1rem !important;
        text-align: center;
    }

    .about-pillars {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }

    .about-pillar {
        text-align: left;
    }

    .section-title,
    .features h2,
    .process-flow h2,
    .company-values h2,
    .certifications-section h2,
    .tracking-features h2 {
        font-size: clamp(1.5rem, 8vw, var(--font-size-2xl));
        text-align: center;
    }

    .category-filters {
        gap: 0.75rem;
    }

    .filter-btn {
        flex: 1 1 150px;
        padding: 0.85rem 1rem;
    }

    .products-categories .products-grid,
    .features-grid,
    .services-grid,
    .contact-grid,
    .values-grid,
    .certifications-grid,
    .quality-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }

    .feature-card,
    .service-card,
    .contact-card,
    .value-card,
    .cert-card,
    .quality-item,
    .mission-card,
    .vision-card {
        padding: var(--spacing-lg);
    }

    .product-info {
        padding: var(--spacing-lg);
    }

    .product-specs {
        gap: 0.5rem;
    }

    .spec {
        font-size: 0.8rem;
    }

    .info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .tracking-number {
        width: 100%;
    }

    .tracking-timeline .timeline {
        padding-left: 1.75rem;
    }

    .tracking-timeline .timeline-content {
        margin-left: var(--spacing-sm);
    }

    .timeline-content {
        padding: var(--spacing-md);
    }

    .footer-content,
    .footer-section,
    .footer-bottom {
        text-align: center;
    }

    .footer-logo,
    .social-links {
        justify-content: center;
    }

    .footer-brand-copy {
        margin-left: auto;
        margin-right: auto;
    }

    .footer-tagline::after {
        margin-left: auto;
        margin-right: auto;
    }

    .contact-info-link,
    .contact-info p {
        justify-content: flex-start;
        align-items: center;
        text-align: left;
    }

    .contact-info-link:hover {
        transform: none;
    }

    .contact-info {
        margin-left: auto;
        margin-right: auto;
        max-width: 340px;
    }

    .contact-info span {
        max-width: 250px;
    }

    .floating-contact-toggle,
    .floating-contact-link {
        width: 52px;
        height: 52px;
        font-size: 1.55rem;
    }

    .floating-contact-options {
        gap: 8px;
    }
}

/* Mobile Small */
@media (max-width: 575px) {
    .container,
    .nav-container {
        width: min(calc(100% - 1rem), 1200px);
    }

    .nav-logo {
        gap: 0.6rem;
    }

    .logo-img {
        width: 40px;
        height: 40px;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .nav-toggle {
        width: 40px;
        height: 40px;
    }

    .hero-content {
        padding-left: 0;
        padding-right: 0;
    }

    .hero-buttons .btn,
    .contact-form .btn,
    .tracking-form .btn,
    .tracking-actions .btn {
        max-width: none;
    }

    .contact-form-container,
    .tracking-form-container,
    .tracking-result-container,
    .terms-wrapper,
    .about-intro-wrap {
        padding: var(--spacing-lg);
    }

    .feature-icon,
    .service-icon,
    .mission-icon,
    .vision-icon {
        width: 64px;
        height: 64px;
    }

    .feature-icon i,
    .service-icon i,
    .mission-icon i,
    .vision-icon i {
        font-size: 1.5rem;
    }

    .cert-logo-wrap {
        width: 100%;
        max-width: 160px;
    }

    .terms-popup {
        padding: var(--spacing-sm);
    }

    .terms-popup-content {
        max-height: 90svh;
    }

    .terms-popup-footer {
        flex-direction: column;
    }

    .terms-popup-footer .btn {
        width: 100%;
    }
}

/* Extra Small Mobile */
@media (max-width: 380px) {
    .logo-text {
        font-size: 1.05rem;
    }

    .hero-title {
        font-size: 1.65rem;
    }

    .hero-subtitle {
        font-size: var(--font-size-small);
    }

    .filter-btn {
        flex-basis: 100%;
    }

    .feature-card,
    .service-card,
    .contact-card,
    .value-card,
    .cert-card,
    .quality-item,
    .mission-card,
    .vision-card,
    .product-info,
    .terms-wrapper,
    .about-intro-wrap {
        padding: var(--spacing-md);
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: 460px;
    }

    .hero-content {
        padding-top: calc(var(--header-height) + 1rem);
        padding-bottom: 1.5rem;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .hero-subtitle {
        margin-bottom: var(--spacing-md);
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-img,
    .product-img,
    .product-image,
    .logo-img,
    .footer-logo-img {
        image-rendering: -webkit-optimize-contrast;
    }
}

/* Print Styles */
@media print {
    .header,
    .floating-contact,
    .nav-toggle,
    .language-switcher,
    .terms-popup {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
        overflow: visible;
    }

    .hero,
    .page-header {
        min-height: auto;
        padding: 0 0 var(--spacing-md);
        background: none;
        color: #000;
    }

    .hero-video-container,
    .hero-overlay {
        display: none;
    }

    .hero-content {
        position: static;
        padding: 0;
    }

    .hero-title,
    .hero-tagline,
    .hero-subtitle,
    .page-header h1,
    .page-header h2,
    .page-header p {
        color: #000;
        text-shadow: none;
    }

    .features-grid,
    .products-grid,
    .stats-grid,
    .footer-content,
    .services-grid,
    .process-steps,
    .contact-grid,
    .info-grid,
    .mission-vision-grid,
    .values-grid,
    .team-grid,
    .certifications-grid,
    .about-highlights,
    .quality-grid,
    .story-content,
    .form-row {
        grid-template-columns: 1fr;
    }

    .btn {
        border: 1px solid var(--primary-color);
        color: var(--primary-color);
        background: none;
    }

    .feature-card,
    .product-card,
    .product-item,
    .service-card,
    .contact-card,
    .terms-wrapper {
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .footer {
        background: none;
        color: #000;
    }

    .footer-logo h3,
    .footer-section h4,
    .footer-links a,
    .contact-info p {
        color: #000;
    }
}