/* ============================
   CSS VARIABLES & RESET
   ============================ */
:root {
    /* Colors */
    --primary: #ea580c;
    --primary-dark: #c2410c;
    --primary-light: #fff7ed;
    --secondary: #1e293b;
    --secondary-light: #334155;
    --text: #475569;
    --text-light: #94a3b8;
    --white: #ffffff;
    --bg-light: #f8fafc;
    --border: #e2e8f0;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --section-padding: 6rem;
    --container-width: 1280px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ============================
   CONTAINER & UTILITIES
   ============================ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-padding {
    padding: var(--section-padding) 0;
}

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

/* ============================
   BUTTONS
   ============================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 0.5rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--secondary);
}

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

.btn-white:hover {
    background-color: var(--bg-light);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-text {
    color: var(--secondary);
    font-weight: 600;
    padding: 0;
}

.btn-text:hover {
    color: var(--primary);
}

.btn-text .icon {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.3s ease;
}

.btn-text:hover .icon {
    transform: translateX(4px);
}

/* ============================
   HEADER
   ============================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    transition: var(--transition);
    padding: 1.5rem 0;
}

.header.scrolled {
    background-color: var(--white);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.5rem;
}

.logo-icon {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    font-size: 1.25rem;
}

.logo-text {
    color: var(--white);
}

.header.scrolled .logo-text {
    color: var(--secondary);
}

.logo .highlight {
    color: var(--primary);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.nav-menu,
.nav-list {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    font-size: 0.875rem;
    position: relative;
}

.header.scrolled .nav-link {
    color: var(--text);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

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

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

.nav-cta {
    margin-left: 1.5rem;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 300;
    position: relative;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    position: relative;
    transition: var(--transition);
}

.header.scrolled .hamburger,
.header.scrolled .hamburger::before,
.header.scrolled .hamburger::after {
    background-color: var(--secondary);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    transition: var(--transition);
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.mobile-toggle.active .hamburger {
    background-color: transparent;
}

.mobile-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
    background-color: var(--secondary);
}

.mobile-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
    background-color: var(--secondary);
}

/* ============================
   HERO SECTION
   ============================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

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

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(30, 41, 59, 0.95) 0%, rgba(30, 41, 59, 0.7) 50%, rgba(30, 41, 59, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 650px;
    color: var(--white);
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--primary);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 2rem;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.icon {
    width: 1.25rem;
    height: 1.25rem;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 13px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--white);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* ============================
   STATS SECTION
   ============================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    display: inline;
}

.stat-suffix {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    display: inline;
}

.stat-label {
    margin-top: 0.5rem;
    color: var(--text);
    font-weight: 500;
}

/* ============================
   SECTION HEADERS
   ============================ */
.section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header.centered {
    text-align: center;
    flex-direction: column;
    align-items: center;
}

.section-subtitle {
    display: block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
    line-height: 1.2;
}

.section-desc {
    margin-top: 1rem;
    font-size: 1.125rem;
    max-width: 600px;
}

/* ============================
   PROJECTS
   ============================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.project-card {
    background-color: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.5rem 1rem;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    color: var(--secondary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 2rem;
}

.project-content {
    padding: 1.5rem;
}

.project-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.icon-sm {
    width: 1rem;
    height: 1rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}

.project-card:hover .project-title {
    color: var(--primary);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
    color: var(--text);
}

.project-meta strong {
    color: var(--secondary);
}

/* ============================
   SERVICES
   ============================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.service-card {
    padding: 2.5rem 2rem;
    background-color: var(--white);
    border-radius: 1rem;
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    padding: 1.5rem;
    background-color: var(--primary-light);
    border-radius: 1rem;
    color: var(--primary);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--primary);
    color: var(--white);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.link-arrow {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.link-arrow::after {
    content: '→';
    transition: transform 0.3s ease;
}

.link-arrow:hover::after {
    transform: translateX(4px);
}

/* ============================
   CTA SECTION
   ============================ */
.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 1.5rem;
    padding: 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    color: var(--white);
}

.cta-content h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* ============================
   FOOTER
   ============================ */
.footer {
    background-color: var(--secondary);
    color: var(--white);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-desc {
    margin: 1.5rem 0;
    color: var(--text-light);
    line-height: 1.7;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: var(--secondary-light);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a.social-whatsapp {
    background-color: #25d366;
}

.social-links a.social-whatsapp:hover {
    background-color: #1ebe5f;
    transform: translateY(-3px);
}

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

.social-links svg {
    width: 30px;
    height: 20px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-light);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.footer-contact a {
    color: var(--text-light);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--secondary-light);
    font-size: 0.875rem;
    color: var(--text-light);
}

.footer-legal {
    display: flex;
    gap: 2rem;
}

.footer-legal a:hover {
    color: var(--white);
}

 /* Hakkımızda sayfasına özel ek stiller */
        .page-header {
            background: linear-gradient(135deg, var(--secondary) 0%, #1e293b 100%);
            padding: 10rem 0 6rem;
            position: relative;
            overflow: hidden;
        }
        
        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.03"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
        }
        
        .page-header-content {
            position: relative;
            z-index: 1;
            text-align: center;
            color: white;
        }
        
        .page-header h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1rem;
        }
        
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
        }
        
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .breadcrumb a:hover {
            color: var(--primary);
        }
        
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }
        
        .about-image {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        
        .about-image-main {
            width: 100%;
            height: 500px;
            background: linear-gradient(135deg, #1e293b, #334155);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            font-weight: 700;
            opacity: 0.9;
        }
        
        .about-image-badge {
            position: absolute;
            bottom: -30px;
            right: -30px;
            width: 200px;
            height: 200px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }
        
        .about-image-badge .year {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1;
        }
        
        .about-image-badge .text {
            font-size: 0.875rem;
            font-weight: 500;
            opacity: 0.9;
        }
        
        .about-content h2 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
        }
        
        .about-content h2 span {
            color: var(--primary);
        }
        
        .about-content > p {
            color: var(--text-light);
            font-size: 1.125rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }
        
        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin-top: 2rem;
        }
        
        .about-feature {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
        }
        
        .about-feature-icon {
            width: 50px;
            height: 50px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .about-feature h4 {
            font-size: 1.125rem;
            margin-bottom: 0.5rem;
        }
        
        .about-feature p {
            color: var(--text-light);
            font-size: 0.875rem;
            line-height: 1.6;
        }
        
        /* Vizyon & Misyon */
        .vision-mission {
            background: var(--bg-light);
        }
        
        .vm-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
        }
        
        .vm-card {
            background: white;
            padding: 3rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
        }
        
        .vm-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
        }
        
        .vm-icon {
            width: 70px;
            height: 70px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
        }
        
        .vm-card h3 {
            font-size: 1.75rem;
            margin-bottom: 1rem;
        }
        
        .vm-card p {
            color: var(--text-light);
            line-height: 1.8;
        }
        
        /* Değerlerimiz */
        .values-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }
        
        .value-card {
            text-align: center;
            padding: 2.5rem 1.5rem;
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 2px solid transparent;
        }
        
        .value-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }
        
        .value-icon {
            width: 80px;
            height: 80px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            transition: var(--transition);
        }
        
        .value-card:hover .value-icon {
            background: var(--primary);
            color: white;
            transform: rotateY(360deg);
        }
        
        .value-card h4 {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
        }
        
        .value-card p {
            color: var(--text-light);
            font-size: 0.875rem;
            line-height: 1.6;
        }
        
        /* Ekibimiz */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }
        
        .team-card {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .team-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
        }
        
        .team-image {
            height: 280px;
            background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
            position: relative;
            overflow: hidden;
        }
        
        .team-placeholder {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #94a3b8;
            font-size: 4rem;
            font-weight: 700;
        }
        
        .team-social {
            position: absolute;
            bottom: -50px;
            left: 0;
            right: 0;
            display: flex;
            justify-content: center;
            gap: 0.75rem;
            padding: 1rem;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
            transition: var(--transition);
        }
        
        .team-card:hover .team-social {
            bottom: 0;
        }
        
        .team-social a {
            width: 36px;
            height: 36px;
            background: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        
        .team-social a:hover {
            background: var(--primary);
            color: white;
        }
        
        .team-info {
            padding: 1.5rem;
            text-align: center;
        }
        
        .team-info h4 {
            font-size: 1.25rem;
            margin-bottom: 0.25rem;
        }
        
        .team-info p {
            color: var(--primary);
            font-weight: 500;
            font-size: 0.875rem;
        }
        
        /* Sertifikalar */
        .certificates {
            background: var(--secondary);
        }
        
        .certificates .section-title,
        .certificates .section-subtitle {
            color: white;
        }
        
        .certificates-grid {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 4rem;
            flex-wrap: wrap;
        }
        
        .certificate-item {
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid rgba(255, 255, 255, 0.2);
        }
        
        .certificate-item:hover {
            background: var(--primary);
            border-color: var(--primary);
            transform: translateY(-5px);
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .about-grid {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            
            .about-image-badge {
                width: 150px;
                height: 150px;
                bottom: -20px;
                right: -20px;
            }
            
            .about-image-badge .year {
                font-size: 2rem;
            }
            
            .values-grid,
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .vm-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
            .page-header h1 {
                font-size: 2.5rem;
            }
            
            .about-features {
                grid-template-columns: 1fr;
            }
            
            .values-grid,
            .team-grid {
                grid-template-columns: 1fr;
            }
            
            .certificates-grid {
                gap: 2rem;
            }
        }
         .page-header {
            background: linear-gradient(135deg, var(--secondary) 0%, #1e293b 100%);
            padding: 10rem 0 6rem;
            position: relative;
            overflow: hidden;
        }
        
        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.03"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
        }
        
        .page-header-content {
            position: relative;
            z-index: 1;
            text-align: center;
            color: white;
        }
        
        .page-header h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1rem;
        }
        
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
        }
        
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .breadcrumb a:hover {
            color: var(--primary);
        }
        
        /* Filters */
        .filters {
            background: white;
            padding: 2rem 0;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 70px;
            z-index: 100;
        }
        
        .filter-container {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }
        
        .filter-btn {
            padding: 0.75rem 1.5rem;
            border: 2px solid var(--border);
            background: white;
            color: var(--text);
            font-weight: 500;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.875rem;
        }
        
        .filter-btn:hover,
        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: white;
        }
        
        /* Projects Grid */
        .projects-container {
            padding: 4rem 0;
        }
        
        .projects-grid-full {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        
        .project-card-full {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            opacity: 1;
            transform: scale(1);
        }
        
        .project-card-full.hidden {
            display: none;
        }
        
        .project-card-full:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
        }
        
        .project-image-full {
            height: 280px;
            background: linear-gradient(135deg, #1e293b, #334155);
            position: relative;
            overflow: hidden;
        }
        
        .project-image-full img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        
        .project-status {
            position: absolute;
            top: 1rem;
            left: 1rem;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
        }
        
        .project-status.completed {
            background: #10b981;
            color: white;
        }
        
        .project-status.ongoing {
            background: var(--primary);
            color: white;
        }
        
        .project-info-full {
            padding: 1.5rem;
        }
        
        .project-category-full {
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            text-transform: uppercase;
            margin-bottom: 0.5rem;
        }
        
        .project-title-full {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
            color: var(--secondary);
        }
        
        .project-meta {
            display: flex;
            gap: 1.5rem;
            color: var(--text-light);
            font-size: 0.875rem;
            margin-bottom: 1rem;
        }
        
        .project-meta span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .project-description {
            color: var(--text-light);
            font-size: 0.875rem;
            line-height: 1.6;
            margin-bottom: 1.5rem;
        }
        
        /* Featured Project */
        .featured-project {
            background: var(--bg-light);
            padding: 4rem 0;
        }
        
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 4rem;
            align-items: center;
        }
        
        .featured-image {
            height: 500px;
            background: linear-gradient(135deg, #1e293b, #334155);
            border-radius: var(--radius);
            position: relative;
            overflow: hidden;
        }

        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        
        .featured-placeholder {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
            font-weight: 700;
            opacity: 0.2;
        }
        
        .featured-badge {
            position: absolute;
            top: 2rem;
            right: 2rem;
            background: var(--primary);
            color: white;
            padding: 0.75rem 1.5rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.875rem;
        }
        
        .featured-content span {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.875rem;
            text-transform: uppercase;
        }
        
        .featured-content h2 {
            font-size: 2.5rem;
            margin: 1rem 0;
        }
        
        .featured-content > p {
            color: var(--text-light);
            font-size: 1.125rem;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        
        .featured-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-bottom: 2rem;
            padding: 2rem;
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        
        .featured-stat h4 {
            font-size: 1.75rem;
            color: var(--primary);
            margin-bottom: 0.25rem;
        }
        
        .featured-stat p {
            color: var(--text-light);
            font-size: 0.875rem;
        }
        
        /* Stats Section */
        .project-stats {
            background: var(--secondary);
            padding: 4rem 0;
        }
        
        .project-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        
        .project-stat-item h3 {
            font-size: 3rem;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        
        .project-stat-item p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.125rem;
        }

        /* İletişim sayfasına özel ek stiller */
        .page-header {
            background: linear-gradient(135deg, var(--secondary) 0%, #1e293b 100%);
            padding: 10rem 0 6rem;
            position: relative;
            overflow: hidden;
        }
        
        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.03"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
        }
        
        .page-header-content {
            position: relative;
            z-index: 1;
            text-align: center;
            color: white;
        }
        
        .page-header h1 {
            color: white;
            font-size: 3.5rem;
            margin-bottom: 1rem;
        }
        
        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.875rem;
        }
        
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .breadcrumb a:hover {
            color: var(--primary);
        }

        /* Contact Grid */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 4rem;
            align-items: start;
        }

        /* Contact Info Cards */
        .contact-info-section {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .contact-card {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .contact-card:hover {
            border-color: var(--primary);
            transform: translateX(10px);
        }

        .contact-card-icon {
            width: 60px;
            height: 60px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
        }

        .contact-card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
        }

        .contact-card p {
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0.5rem;
        }

        .contact-card a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: color 0.3s;
        }

        .contact-card a:hover {
            color: var(--primary-dark);
        }

        /* Working Hours */
        .working-hours {
            margin-top: 0.5rem;
        }

        .working-hours li {
            display: flex;
            justify-content: space-between;
            padding: 0.5rem 0;
            border-bottom: 1px solid var(--border);
            color: var(--text-light);
            font-size: 0.875rem;
        }

        .working-hours li:last-child {
            border-bottom: none;
        }

        .working-hours .day {
            font-weight: 500;
            color: var(--text);
        }

        /* Contact Form */
        .contact-form-section {
            background: white;
            padding: 3rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
        }

        .form-header {
            margin-bottom: 2rem;
        }

        .form-header h2 {
            font-size: 1.875rem;
            margin-bottom: 0.5rem;
        }

        .form-header p {
            color: var(--text-light);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--secondary);
            font-size: 0.875rem;
        }

        .form-group label span {
            color: var(--primary);
        }

        .form-control {
            width: 100%;
            padding: 0.875rem 1rem;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
            background: white;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(234, 88, 12, 0.1);
        }

        .form-control::placeholder {
            color: #94a3b8;
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .form-select {
            appearance: none;
            background-image: url('data:image/svg+xml,<svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="%2364748b" stroke-width="2"><polyline points="6 9 12 15 18 9"/></svg>');
            background-repeat: no-repeat;
            background-position: right 1rem center;
            padding-right: 2.5rem;
        }

        .checkbox-group {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
        }

        .checkbox-group input[type="checkbox"] {
            width: 18px;
            height: 18px;
            accent-color: var(--primary);
            margin-top: 2px;
            cursor: pointer;
        }

        .checkbox-group label {
            font-size: 0.875rem;
            color: var(--text-light);
            line-height: 1.5;
            cursor: pointer;
        }

        .checkbox-group a {
            color: var(--primary);
            text-decoration: underline;
        }

        .btn-submit {
            width: 100%;
            padding: 1rem;
            font-size: 1rem;
            margin-top: 1rem;
        }

        /* Map Section */
        .map-section {
            padding: 0;
        }

        .map-container {
            height: 450px;
            background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .map-placeholder {
            text-align: center;
            color: #64748b;
        }

        .map-placeholder svg {
            margin-bottom: 1rem;
            opacity: 0.5;
        }

        .map-placeholder h3 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }

        /* Success Message */
        .success-message {
            display: none;
            background: #10b981;
            color: white;
            padding: 1rem;
            border-radius: var(--radius);
            margin-bottom: 1.5rem;
            text-align: center;
        }

        .error-message {
            display: none;
            background: #ef4444;
            color: white;
            padding: 1rem;
            border-radius: var(--radius);
            margin-bottom: 1.5rem;
            text-align: center;
        }