/* =====================================================
   HEFA YAZILIM - RESPONSIVE STYLES
   ===================================================== */

/* ==================== TABLET (max 1024px) ==================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }
    
    .header-inner {
        padding: 0 24px;
    }
    
    .section {
        padding: 70px 0;
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .about-grid {
        gap: 40px;
    }
    
    .products-layout {
        grid-template-columns: 220px 1fr;
        gap: 24px;
    }
    
    .contact-grid {
        gap: 40px;
    }
}

/* ==================== TABLET SMALL (max 768px) ==================== */
@media (max-width: 768px) {
    /* Header & Nav Redesign */
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        height: 100dvh;
        background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
        flex-direction: column;
        padding: 0;
        gap: 0;
        box-shadow: -10px 0 40px rgba(15, 23, 42, 0.15);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 10001;
        align-items: stretch;
        display: flex !important;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .mobile-nav-top {
        padding: 40px 24px 30px;
        background: var(--color-primary);
        color: var(--color-white);
        margin-bottom: 20px;
        border-bottom-left-radius: 20px;
        border-bottom-right-radius: 20px;
    }
    
    .mobile-logo-wrap {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 8px;
    }
    
    .mobile-logo-wrap .logo-text {
        font-size: 1.4rem;
        color: var(--color-white) !important;
        letter-spacing: 1px;
    }
    
    .logo-badge {
        font-size: 0.65rem;
        font-weight: 800;
        background: var(--color-accent);
        padding: 2px 8px;
        border-radius: 4px;
        letter-spacing: 1px;
    }
    
    .mobile-nav-tagline {
        font-size: 0.8rem;
        opacity: 0.6;
        font-weight: 500;
    }
    
    .nav-links-inner {
        padding: 0 15px;
        flex: 1;
        overflow-y: auto;
    }
    
    .nav-link {
        color: var(--color-primary) !important;
        padding: 16px 20px;
        border-radius: 12px;
        font-size: 0.95rem;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 15px;
        margin-bottom: 4px;
        transition: all 0.2s ease;
        text-shadow: none !important;
        background: transparent !important;
    }
    
    .nav-icon {
        width: 38px;
        height: 38px;
        background: var(--color-light-gray);
        color: var(--color-primary);
        display: flex !important;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        font-size: 1rem;
        transition: all 0.2s ease;
        flex-shrink: 0;
    }
    
    .arrow-icon {
        margin-left: auto;
        font-size: 0.75rem;
        opacity: 0.3;
        transition: transform 0.2s ease;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background: rgba(37, 99, 235, 0.08) !important;
        color: var(--color-accent) !important;
    }
    
    .nav-link.active .nav-icon {
        background: var(--color-accent);
        color: var(--color-white);
    }
    
    .mobile-nav-footer {
        padding: 30px 24px;
        border-top: 1px solid var(--color-gray);
        background: var(--color-white);
    }
    
    .mobile-social-icons {
        display: flex;
        gap: 15px;
        margin-bottom: 15px;
    }
    
    .mobile-social-icons a {
        width: 36px;
        height: 36px;
        background: var(--color-light-gray);
        color: var(--color-primary);
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        font-size: 0.9rem;
        transition: all 0.2s ease;
    }
    
    .header-cta {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span {
        background: var(--color-primary) !important;
    }
    
    .mobile-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 10000;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        touch-action: none;
    }
    
    .mobile-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    /* WhatsApp Widget gizleme (Menü açıkken) */
    body.menu-open .floating-whatsapp {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }
    
    /* Stacking Context Fix */
    body.menu-open .site-header {
        z-index: 100001 !important;
    }
    
    body.menu-open .mobile-overlay {
        z-index: 100000 !important;
    }
    
    /* Hero Slider */
    .hero-slider {
        min-height: 500px;
    }
    
    .slide-content {
        padding: 0 24px 80px 24px !important;
    }
    
    .slide-title {
        font-size: 2rem;
    }
    
    .slide-btn {
        padding: 14px 28px;
        font-size: 0.9rem;
    }
    
    /* Sections */
    .section {
        padding: 60px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    /* Grids */
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* About */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    /* Products */
    .products-layout {
        grid-template-columns: 1fr;
    }
    
    .products-sidebar {
        position: static;
    }
    
    .category-list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .category-item {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    /* Contact */
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        font-size: 0.8rem;
    }
    
    /* Page Hero */
    .page-hero {
        padding: 120px 0 60px;
    }
    
    .page-hero h1 {
        font-size: 2rem;
    }
    
    /* Detail */
    .detail-content {
        padding: 0 16px;
    }
}

/* ==================== MOBILE (max 480px) ==================== */
@media (max-width: 480px) {
    body {
        font-size: 15px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .section {
        padding: 48px 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero-slider {
        min-height: 450px;
    }
    
    .slide-title {
        font-size: 1.6rem;
    }
    
    .slide-description {
        font-size: 0.9rem;
    }
    
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .service-card {
        padding: 28px 20px;
    }
    
    .card-body {
        padding: 20px;
    }
    
    .contact-form {
        padding: 24px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .btn-lg {
        padding: 14px 32px;
        font-size: 1rem;
    }
    
    .reference-card {
        padding: 24px;
    }
    
    .page-hero {
        padding: 100px 0 48px;
    }
    
    .page-hero h1 {
        font-size: 1.6rem;
    }
    
    .slider-nav {
        bottom: 20px;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .floating-whatsapp {
        bottom: 20px;
        right: 20px;
        padding: 6px 16px 6px 6px;
        gap: 10px;
    }
    
    .wa-icon {
        width: 36px;
        height: 36px;
        font-size: 1.3rem;
    }
    
    .wa-text {
        font-size: 0.85rem;
    }
}
/* Ürünler Sayfası Tertemiz Görünüm */
@media (max-width: 991px) {
    /* 1. Kenarlara taşma yapan negatif payları sıfırlıyoruz (Sağa-sola oynamayı bitirir) */
    .products-sidebar {
        margin: 0 !important; 
        padding-bottom: 20px !important;
        width: 100% !important;
        position: static !important;
        background: transparent !important;
        border: none !important;
    }

    /* 2. Kategori listesinin kendi içindeki akıcılığını koruyoruz */
    .category-list {
        display: flex !important;
        flex-direction: row !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important; 
        gap: 10px !important;
        padding: 5px 0 15px 0 !important;
    }
}

/* 3. Sayfanın genel akıcılığı için güvenlik kilidi */
html, body {
    overflow-x: hidden;
    height: auto;
}