/* ==========================================================================
   GAMA Kağıt Ürünleri - styles.css
   Modern, Premium ve Responsive Tasarım Sistemi
   ========================================================================== */

/* Custom CSS Variables (Light Theme Default) */
:root {
    --primary-color: hsl(0, 75%, 45%);       /* Gamapak Red */
    --primary-light: hsl(0, 80%, 55%);
    --primary-dark: hsl(0, 80%, 35%);
    --primary-gradient: linear-gradient(135deg, hsl(0, 75%, 48%) 0%, hsl(345, 80%, 38%) 100%);
    
    /* Light Mode Palette */
    --bg-base: hsl(210, 20%, 98%);
    --bg-surface: hsl(0, 0%, 100%);
    --bg-surface-alt: hsl(210, 15%, 95%);
    --bg-glass: rgba(255, 255, 255, 0.8);
    
    --text-primary: hsl(220, 20%, 15%);
    --text-secondary: hsl(220, 10%, 45%);
    --text-light: hsl(220, 10%, 60%);
    --text-on-primary: hsl(0, 0%, 100%);
    
    --border-color: hsl(210, 10%, 90%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.1);
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-full: 9999px;
    
    --font-primary: 'Outfit', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    --header-height: 125px;
    --nav-height: 80px;
}

/* Dark Mode Palette overrides */
[data-theme="dark"] {
    --bg-base: hsl(222, 25%, 8%);
    --bg-surface: hsl(222, 25%, 12%);
    --bg-surface-alt: hsl(222, 25%, 16%);
    --bg-glass: rgba(18, 22, 32, 0.8);
    
    --text-primary: hsl(210, 20%, 95%);
    --text-secondary: hsl(210, 12%, 70%);
    --text-light: hsl(210, 10%, 55%);
    
    --border-color: hsl(222, 20%, 20%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
}

/* Base Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    background: none;
    border: none;
    cursor: pointer;
    outline: none;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--border-radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* General Layout Utilities */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--bg-surface-alt);
}

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

.section-header {
    margin-bottom: 60px;
}

.section-subtitle {
    display: block;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.title-bar {
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    margin: 0 auto;
    border-radius: var(--border-radius-full);
}

.title-bar-sm {
    width: 40px;
    height: 3px;
    background: var(--primary-gradient);
    margin-bottom: 20px;
    border-radius: var(--border-radius-full);
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-base);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-on-primary);
    box-shadow: 0 4px 15px rgba(207, 39, 39, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.6s ease;
    z-index: -1;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(207, 39, 39, 0.5);
    background: var(--primary-light);
}

.btn-light {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-light:hover {
    transform: translateY(-3px);
    background-color: var(--primary-color);
    color: var(--text-on-primary);
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.btn-light-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    background-color: rgba(255, 255, 255, 0.9);
    color: hsl(220, 20%, 15%);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
}

.btn-light-sm:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Top Bar */
.top-bar {
    background-color: var(--bg-surface-alt);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
    font-size: 0.85rem;
}

.top-bar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info-top {
    display: flex;
    gap: 24px;
}

.contact-info-top a {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-info-top a:hover {
    color: var(--primary-color);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-selector {
    display: flex;
    gap: 8px;
}

.lang-btn {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.7;
    transition: opacity var(--transition-fast), color var(--transition-fast);
}

.lang-btn.active, .lang-btn:hover {
    opacity: 1;
    color: var(--primary-color);
}

#theme-toggle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

#theme-toggle:hover {
    color: var(--primary-color);
    transform: rotate(15deg) scale(1.1);
}

/* Nav Menu */
.main-nav {
    background-color: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color var(--transition-normal);
}

.nav-container {
    height: var(--nav-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 45px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo-text {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: 2px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.95rem;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition-normal);
    border-radius: var(--border-radius-full);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.btn-contact-nav {
    padding: 8px 20px;
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-sm);
    color: var(--primary-color);
    font-weight: 700;
}

.btn-contact-nav::after {
    display: none;
}

.btn-contact-nav:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Mobile Toggle */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 30px;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Hero Slider */
.hero-slider-section {
    position: relative;
    height: 550px;
    background-color: #000;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: left center;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow) ease-in-out, visibility var(--transition-slow) ease-in-out;
    z-index: 1;
    padding: 0 60px;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.slide-content {
    position: relative;
    z-index: 3;
    color: white;
    max-width: 380px;
    width: 36%;
    background: rgba(0, 0, 0, 0.58);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: 10px;
    padding: 24px 28px;
    border-left: 4px solid var(--primary-color);
    transform: translateY(30px);
    transition: transform var(--transition-slow) cubic-bezier(0.16, 1, 0.3, 1);
}

.slide.active .slide-content {
    transform: translateY(0);
}

.slide-badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--primary-color);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
}

.slide-content h2 {
    font-size: 1.9rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 10px;
    color: white;
}

.slide-content p {
    font-size: 0.9rem;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.85);
}

/* Slider Controls */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    z-index: 10;
    transition: all var(--transition-normal);
}

.slider-btn:hover {
    background-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(207, 39, 39, 0.4);
}

.prev-btn {
    left: 32px;
}

.next-btn {
    right: 32px;
}

.slider-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    transition: all var(--transition-normal);
}

.slider-dot.active {
    background-color: var(--primary-color);
    width: 24px;
    border-radius: var(--border-radius-full);
}

/* Core Pillars (Services) Grid */
.services-section {
    margin-top: -60px;
    position: relative;
    z-index: 10;
    padding-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--border-radius-md);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
    box-shadow: 0 4px 10px rgba(207, 39, 39, 0.2);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.read-more {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.read-more:hover {
    gap: 10px;
}

/* CTA Banner */
.cta-banner {
    background: var(--primary-gradient);
    padding: 50px 0;
    color: white;
    box-shadow: var(--shadow-lg);
}

.cta-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
}

.cta-text h2 {
    color: white;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.cta-text p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* About Us Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-img {
    width: 100%;
    object-fit: cover;
    height: 480px;
    transition: transform var(--transition-slow);
}

.about-image-wrapper:hover .about-img {
    transform: scale(1.03);
}

.experience-badge {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-color);
    color: white;
    padding: 20px 30px;
    border-radius: var(--border-radius-md);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 5;
}

.experience-badge .number {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.85rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1.2;
}

.about-info h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.about-info p {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

/* Tabs */
.vision-mission-tabs {
    margin-top: 30px;
}

.tab-headers {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
}

.tab-btn {
    padding: 12px 24px;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-secondary);
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
}

.tab-btn.active {
    color: var(--primary-color);
}

.tab-btn.active::after {
    width: 100%;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.tab-pane ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tab-pane li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.tab-pane li i {
    color: var(--primary-color);
    margin-top: 4px;
}

/* Facilities Section */
.facility-tabs {
    background-color: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.facility-tab-nav {
    display: flex;
    background-color: var(--bg-surface-alt);
    border-bottom: 1px solid var(--border-color);
}

.fac-tab-btn {
    flex: 1;
    padding: 20px;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: center;
    border-right: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.fac-tab-btn:last-child {
    border-right: none;
}

.fac-tab-btn.active, .fac-tab-btn:hover {
    background-color: var(--bg-surface);
    color: var(--primary-color);
}

.facility-tab-content {
    padding: 40px;
}

.fac-pane {
    display: none;
}

.fac-pane.active {
    display: block;
    animation: fadeIn 0.5s ease-out;
}

.fac-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.fac-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.fac-text p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-primary);
}

.features-list li i {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: 3px;
}

.fac-graphics {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step-card {
    background-color: var(--bg-surface-alt);
    padding: 24px;
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--primary-color);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.step-num {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-light);
    line-height: 1;
}

.step-card h4 {
    font-size: 1.1rem;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.stat-box {
    background-color: var(--bg-surface-alt);
    padding: 30px;
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    display: block;
    font-family: var(--font-primary);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
}

/* Machine List Styling */
.machines-park h3 {
    margin-bottom: 10px;
}

.machines-intro {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.machines-table-wrapper {
    overflow-x: auto;
}

.machines-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.machines-table th, .machines-table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.machines-table th {
    background-color: var(--bg-surface-alt);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.machines-table td {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.machines-table tr:hover td {
    background-color: rgba(207, 39, 39, 0.03);
    color: var(--text-primary);
}

/* Products Section */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background-color: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.product-image-container {
    position: relative;
    height: 320px;
    overflow: hidden;
    background-color: #f0f0f0;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-img {
    transform: scale(1.08);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(2px);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.product-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Quality & Environmental Management */
.quality-content-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: start;
}

.quality-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.quality-text p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.cert-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.cert-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cert-card i {
    font-size: 2rem;
    color: var(--primary-color);
}

.cert-card h4 {
    font-size: 1.05rem;
}

.cert-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.quality-info-box {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.quality-info-box h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.quality-info-box p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.quality-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.quality-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.quality-list li i {
    color: var(--primary-color);
    font-size: 1rem;
    margin-top: 4px;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    align-items: stretch;
}

.contact-map {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    border: 0;
    min-height: 450px;
}

.contact-form-container {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form-container h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.form-description {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 35px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.form-group input, .form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-base);
    color: var(--text-primary);
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: all var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
    background-color: var(--bg-surface);
    box-shadow: 0 0 0 3px rgba(207, 39, 39, 0.15);
}

.contact-details {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.detail-item {
    display: flex;
    gap: 15px;
}

.detail-item i {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-top: 4px;
}

.detail-item h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.detail-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Footer styling */
.site-footer {
    background-color: var(--bg-surface-alt);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 6px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
}

.footer-bottom-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-light);
}

.kvkk-link:hover {
    color: var(--primary-color);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(6px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-box {
    background-color: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
    animation: fadeIn 0.4s ease;
}

.modal-overlay.active .modal-box {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    z-index: 10;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--primary-color);
    color: white;
    transform: rotate(90deg);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
}

.modal-image {
    background-color: #f8f9fa;
    height: 100%;
    min-height: 400px;
}

.modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-body {
    padding: 40px;
}

.modal-category {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--primary-color);
    text-transform: uppercase;
    margin-bottom: 8px;
    display: block;
}

.modal-body h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.modal-features {
    margin-bottom: 30px;
}

.modal-features h4 {
    font-size: 1.05rem;
    margin-bottom: 12px;
}

.modal-features ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.modal-features li i {
    color: var(--primary-color);
}

/* Scroll To Top Button */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(207, 39, 39, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
}

.scroll-top-btn.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    background-color: var(--primary-light);
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(207, 39, 39, 0.5);
}

/* Scroll Reveal classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Inline facility images (graphics gallery) */
.fac-graphics-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.facility-img-card {
    background-color: var(--bg-surface-alt);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.facility-img-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.fac-inline-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.img-label {
    display: block;
    padding: 10px 12px;
    font-size: 0.8rem;
    font-weight: 700;
    font-family: var(--font-primary);
    text-align: center;
    color: var(--text-secondary);
}

/* Machine park grid card styling */
.machines-grid-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 24px;
}

.machine-cat-card {
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.machine-cat-card h4 {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.machine-cat-card ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.machine-cat-card li {
    font-size: 0.88rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.machine-cat-card li::before {
    content: "•";
    color: var(--primary-color);
    font-weight: bold;
}

/* Gallery Styling */
.gallery-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-full);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--primary-gradient);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(207, 39, 39, 0.25);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.gallery-item {
    cursor: pointer;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    transition: all var(--transition-normal);
}

.gallery-item.hidden {
    display: none;
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.gallery-img-wrapper {
    position: relative;
    width: 100%;
    padding-top: 100%; /* Square aspect ratio */
    overflow: hidden;
}

.gallery-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover .gallery-img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    padding: 20px;
    opacity: 0;
    transition: opacity var(--transition-normal);
    color: white;
    text-align: center;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay i {
    font-size: 1.8rem;
    margin-bottom: 10px;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.gallery-item:hover .gallery-overlay i {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 0.95rem;
    color: white;
    font-weight: 600;
}

/* Lightbox Modal styles */
.lightbox-box {
    position: relative;
    width: 90%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    animation: fadeIn 0.4s ease;
}

.lightbox-content {
    background-color: #000;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
    width: 100%;
    display: flex;
    flex-direction: column;
}

#lightbox-img {
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
    background-color: #050505;
}

.lightbox-caption {
    background-color: var(--bg-surface);
    padding: 20px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-secondary);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.lightbox-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
    z-index: 10;
}

.lightbox-nav-btn:hover {
    background-color: var(--primary-color);
}

.lightbox-nav-btn.prev {
    left: -70px;
}

.lightbox-nav-btn.next {
    right: -70px;
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */

@media (max-width: 1024px) {
    :root {
        --header-height: 100px;
    }
    
    .contact-info-top {
        display: none; /* Hide top bar details on mobile to fit lang switcher & theme toggle */
    }
    
    .top-bar-container {
        justify-content: flex-end; /* Align top bar actions to the right */
    }

    /* Navigation burger */
    .mobile-nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .mobile-nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-surface);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-normal);
        z-index: 1000;
        border-left: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        right: 0;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .services-section {
        margin-top: -30px;
    }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-img {
        height: 350px;
    }
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .quality-content-grid {
        grid-template-columns: 1fr;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .machines-grid-list {
        grid-template-columns: 1fr;
    }
    .fac-graphics-gallery {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-slider-section {
        height: 320px;
    }

    .slide {
        padding: 0;
        justify-content: center;
        background-position: center center;
        background-size: contain;
        background-repeat: no-repeat;
        background-color: #f5f5f5;
    }

    .slide-badge {
        margin-bottom: 15px;
    }

    .slide-content h2 {
        font-size: 2rem;
    }
    
    .slide-content p {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }
    
    .slider-btn {
        display: none; /* Hide buttons on mobile, rely on dots/swipes */
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card {
        padding: 24px;
    }
    
    .cta-container {
        flex-direction: column;
        text-align: center;
    }
    
    .facility-tab-nav {
        flex-wrap: wrap;
    }
    
    .fac-tab-btn {
        flex: 50%;
        border-bottom: 1px solid var(--border-color);
    }
    
    .fac-tab-btn:nth-child(2n) {
        border-right: none;
    }
    
    .fac-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .product-image-container {
        height: 250px;
    }

    .product-info {
        padding: 20px;
    }
    
    .contact-form-container {
        padding: 24px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .contact-details {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom-container {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .modal-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-image {
        min-height: 250px;
    }
    
    .modal-body {
        padding: 24px;
    }

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

    .lightbox-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .lightbox-nav-btn.prev {
        left: 10px;
    }

    .lightbox-nav-btn.next {
        right: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        width: 94%;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .hero-slider-section {
        height: 260px;
    }

    .slide {
        padding: 0;
    }

    .slide-content h2 {
        font-size: 1.5rem;
    }

    .slide-content p {
        font-size: 0.8rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .fac-tab-nav {
        flex-direction: column;
    }

    .fac-tab-btn {
        flex: 100%;
        border-right: none !important;
    }

    .modal-box {
        width: 95%;
        margin: 10px;
        max-height: 90vh;
    }

    .modal-image {
        min-height: 180px;
    }

    .lightbox-caption {
        font-size: 0.8rem;
        padding: 10px;
    }

    .products-grid {
        gap: 20px;
    }

    .product-image-container {
        height: 210px;
    }

    .product-info {
        padding: 16px;
    }
}