/* =====================================================
   KRISHNA METAL INDUSTRIES — mobile.css
   Full mobile responsiveness for all pages
   Breakpoints: 768px (tablet), 480px (phone)
===================================================== */

/* ===== HAMBURGER BUTTON ===== */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
    z-index: 1100;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== TABLET & MOBILE (max 768px) ===== */
@media (max-width: 768px) {

    /* --- NAVBAR --- */
    .hamburger {
        display: flex;
    }

    nav {
        flex-wrap: wrap;
        padding: 10px 20px;
        position: relative;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        background: #060d0d;
        border-top: 1px solid rgba(0,128,128,0.2);
        padding: 10px 0 20px 0;
        margin-top: 10px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links > li {
        border-bottom: 1px solid rgba(0,128,128,0.08);
    }

    .nav-links > li > a {
        display: block;
        padding: 14px 20px;
        font-size: 14px;
    }

    /* Mobile dropdown */
    .dropdown-menu {
        position: static !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        box-shadow: none !important;
        border: none !important;
        background: rgba(0,128,128,0.05) !important;
        display: none;
        padding: 0 !important;
        min-width: unset !important;
    }

    .dropdown.open .dropdown-menu {
        display: block;
    }

    .dropdown-menu li a {
        padding: 10px 30px !important;
        font-size: 13px !important;
        color: var(--text-grey) !important;
    }

    .dropdown-wide {
        min-width: unset !important;
    }

    /* --- HERO --- */
    .hero {
        padding: 120px 20px 80px;
        min-height: auto;
    }

    .hero-content h1 {
        font-size: 36px;
        letter-spacing: 1px;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    /* --- SECTION TITLES --- */
    .section-title h2 {
        font-size: 28px;
        letter-spacing: 1px;
    }

    .section-title p {
        font-size: 14px;
    }

    /* --- STATS --- */
    .stats .container {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .stat-item:not(:last-child)::after {
        display: none;
    }

    .stat-item h3 {
        font-size: 40px;
    }

    /* --- INDUSTRIES --- */
    .industry-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    /* --- PRODUCTS PREVIEW (homepage) --- */
    .products-preview .products-grid {
        grid-template-columns: 1fr;
    }

    /* --- WHY US --- */
    .why-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    /* --- FOOTER --- */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    /* --- PAGE HERO --- */
    .page-hero {
        min-height: 300px !important;
    }

    .page-hero-content h1 {
        font-size: 32px;
    }

    /* --- ABOUT PAGE --- */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .experience-badge {
        bottom: -15px;
        right: 10px;
    }

    .about-points {
        columns: 1;
    }

    /* --- COMPANY PROFILE --- */
    .vision-mission-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    /* --- INFRASTRUCTURE --- */
    .machine-card {
        grid-template-columns: 1fr !important;
        direction: ltr !important;
    }

    .machine-card.reverse {
        direction: ltr !important;
    }

    .machine-card.reverse .machine-content {
        direction: ltr !important;
    }

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

    /* --- QUALITY PAGE --- */
    .quality-intro-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .quality-stat-box {
        position: relative;
        bottom: 0;
        left: 0;
        display: inline-block;
        margin-top: 15px;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .process-timeline {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }

    .process-connector {
        transform: rotate(90deg);
        padding: 5px 0;
    }

    .process-step {
        width: 100%;
        max-width: 100%;
    }

    .quality-cta h2 {
        font-size: 26px;
    }

    /* ISO Certificate */
    .iso-card {
        grid-template-columns: 1fr;
    }

    .iso-image {
        width: 100%;
        height: 280px;
    }

    .iso-details {
        grid-template-columns: 1fr;
    }

    /* --- CONTACT PAGE --- */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-form-wrap {
        padding: 25px 20px;
    }

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

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

    .strip-item {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    /* --- PRODUCTS GALLERY --- */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    /* --- PRODUCT DETAIL --- */
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .product-detail-image {
        position: relative !important;
        top: 0 !important;
    }

    .product-detail-content h1 {
        font-size: 26px;
    }

    .product-cta-buttons {
        flex-direction: column;
    }

    .product-navigation {
        flex-direction: column;
        gap: 12px;
    }

    .prod-nav-btn {
        text-align: center;
    }

    /* Related products */
    .related-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== SMALL PHONES (max 480px) ===== */
@media (max-width: 480px) {

    .hero-content h1 {
        font-size: 28px;
    }

    .section-title h2 {
        font-size: 24px;
    }

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

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

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

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

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

    .quality-cta h2 {
        font-size: 22px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

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

    .footer-col img {
        height: 45px;
    }
}