/* --- 1. TEMEL AYARLAR & SIFIRLAMA --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* --- 2. NAVİGASYON (NAVBAR) - ŞEFFAF & HİZALANMIŞ YAPISI --- */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 35px 8% 20px 8%; /* Mac üst siyah bandıyla milimetrik hizalama boşluğu */
    background-color: transparent !important; 
    box-shadow: none !important;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease; 
}

.navbar.scrolled {
    background-color: #ffffff !important; 
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05) !important;
    padding: 12px 8% !important; 
}

/* KARANLIK MODDA NAVBAR DAVRANIŞI */
body.dark-mode .navbar {
    background-color: transparent !important; 
    box-shadow: none !important;
}

body.dark-mode .navbar.scrolled {
    background-color: #1e293b !important; 
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.site-logo {
    width: 45px;
    height: 45px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid #1a365d;
    background-color: #f8f9fa;
    padding: 2px;
    filter: sepia(1) saturate(1.5) hue-rotate(190deg) brightness(0.8);
    transition: all 0.3s ease;
}

body.dark-mode .site-logo {
    border-color: #38bdf8;
    background-color: #1e293b;
    filter: invert(0.6) sepia(1) saturate(5) hue-rotate(170deg) brightness(1.2);
}

.navbar-brand:hover .site-logo {
    transform: scale(1.08);
    border-color: #2b6cb0;
}

.logo-container {
    display: flex;
    flex-direction: column;
}

.main-logo {
    font-size: 24px;
    font-weight: 800;
    color: #1a365d;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

body.dark-mode .main-logo { color: #38bdf8; }

.sub-logo {
    font-size: 12px;
    font-weight: 600;
    color: #4a5568;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: -2px;
    transition: color 0.3s ease;
}

body.dark-mode .sub-logo { color: #cbd5e1; }

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 600;
    font-size: 15px;
    transition: color 0.3s ease;
}

body.dark-mode .nav-links a { color: #cbd5e1; }
.nav-links a:hover { color: #2b6cb0; }
body.dark-mode .nav-links a:hover { color: #38bdf8; }

.lang-switcher {
    display: flex;
    gap: 5px;
    background-color: #edf2f7;
    padding: 4px;
    border-radius: 20px;
    transition: background-color 0.3s ease;
}

body.dark-mode .lang-switcher { background-color: #334155; }

.lang-btn {
    background: none;
    border: none;
    padding: 6px 12px;
    cursor: pointer;
    font-weight: 700;
    font-size: 12px;
    color: #718096;
    border-radius: 15px;
    transition: all 0.3s ease;
}

body.dark-mode .lang-btn { color: #94a3b8; }

.lang-btn.active {
    background-color: #1a365d;
    color: #ffffff;
}

body.dark-mode .lang-btn.active {
    background-color: #38bdf8;
    color: #0f172a;
}

.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 19px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger-menu span {
    width: 100%;
    height: 3px;
    background-color: #1a365d;
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body.dark-mode .hamburger-menu span { background-color: #38bdf8; }

/* --- 3. 3D REAL MOCKUP HERO --- */
.hero {
    position: relative;
    width: 100%;
    height: 940px; 
    background: url('mac.jpg') no-repeat center 35%; 
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: flex-start; 
    padding-top: 290px; 
    overflow: hidden;
}

.hero-overlay-content {
    max-width: 720px; 
    width: 100%;
    text-align: center;
    padding: 0 30px;
    z-index: 5;
    animation: realMockupFloat 6s cubic-bezier(0.45, 0, 0.55, 1) infinite alternate;
}

.hero-overlay-content h1 {
    font-size: 52px;
    font-weight: 800;
    color: #1e293b; 
    line-height: 1.15;
    margin-bottom: 18px;
    letter-spacing: -1.5px;
}

.hero-overlay-content p {
    font-size: 19px;
    color: #475569;
    margin-bottom: 30px;
    font-weight: 500;
}

/* --- LÜKS PARILTI (SHINE) BUTON EFECTLERİ --- */
.btn {
    position: relative;
    display: inline-block;
    padding: 14px 35px;
    background-color: #ffffff;
    color: #1e293b;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    overflow: hidden; 
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    background-color: #f8f9fa;
}

/* Sihirli Işık Hüzmesi Tasarımı */
.btn-shine::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -60%;
    width: 30%;
    height: 200%;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.5) 50%, rgba(255,255,255,0) 100%);
    transform: rotate(30deg);
    transition: none;
}

.btn-shine:hover::after {
    left: 140%;
    transition: left 0.7s ease-in-out;
}

.btn-dark {
    background-color: #1a365d;
    color: #ffffff;
    border-color: #1a365d;
}

.btn-dark:hover {
    background-color: #2b6cb0;
    color: #ffffff;
}

.btn-dark.btn-shine::after {
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 50%, rgba(255,255,255,0) 100%);
}

.submit-btn {
    position: relative;
    overflow: hidden;
}

@keyframes realMockupFloat {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-10px); } 
}

/* --- 4. İSTATİSTİK BÖLÜMÜ --- */
.stats-section {
    display: flex;
    justify-content: space-around;
    padding: 40px 8%;
    background-color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    margin-top: -40px;
    position: relative;
    z-index: 10;
    border-radius: 8px;
    width: 84%;
    margin-left: auto;
    margin-right: auto;
}

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

.stat-item h3 {
    font-size: 32px;
    color: #2b6cb0;
    font-weight: 800;
    margin-bottom: 5px;
}

.stat-item p {
    font-size: 14px;
    color: #718096;
    font-weight: 600;
    text-transform: uppercase;
}

/* --- 5. SLIDER HİZMETLER BÖLÜMÜ --- */
.services-section {
    padding: 80px 8%;
    overflow: hidden; 
}

.services-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto 40px auto;
}

.services-section h2 {
    font-size: 32px;
    color: #1a365d;
    font-weight: 800;
    text-align: left;
}

.slider-controls {
    display: flex;
    gap: 12px;
}

.slider-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    color: #1a365d;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transition: all 0.3s ease;
}

.slider-btn:hover {
    background-color: #1a365d;
    color: #ffffff;
    border-color: #1a365d;
    transform: scale(1.05);
}

.services-slider-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
    padding: 10px 5px;
    cursor: grab;
}

.services-slider-wrapper:active {
    cursor: grabbing;
}

.services-container {
    display: flex; 
    gap: 30px;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform;
}

.service-card {
    flex: 0 0 calc(33.333% - 20px); 
    background-color: #ffffff;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    text-align: left;
    user-select: none;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    border-color: #2b6cb0;
}

.service-icon {
    font-size: 36px;
    color: #2b6cb0;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 18px;
    color: #1a365d;
    margin-bottom: 12px;
    font-weight: 700;
}

.service-card p {
    font-size: 14px;
    color: #4a5568;
}

/* --- 6. ÇALIŞMA SÜRECİMİZ --- */
.process-section {
    padding: 80px 8%;
    background-color: #ffffff;
    text-align: center;
}

.process-section h2 {
    font-size: 32px;
    color: #1a365d;
    margin-bottom: 50px;
    font-weight: 800;
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.process-step {
    text-align: center;
    position: relative;
    padding: 20px;
}

.step-icon {
    width: 70px;
    height: 70px;
    background-color: #edf2f7;
    color: #2b6cb0;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 26px;
    margin: 0 auto 20px auto;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.process-step:hover .step-icon {
    background-color: #2b6cb0;
    color: #ffffff;
    transform: translateY(-5px);
}

.step-content h3 {
    font-size: 16px;
    color: #1a365d;
    margin-bottom: 10px;
    font-weight: 700;
}

.step-content p {
    font-size: 13.5px;
    color: #4a5568;
}

/* --- 7. MÜTEAHHİTLİK & GAYRİMENKUL --- */
.contracting-section {
    padding: 80px 8%;
    background-color: #edf2f7;
}

.contracting-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.contracting-text h2 {
    font-size: 32px;
    color: #1a365d;
    margin-bottom: 20px;
    font-weight: 800;
}

.contracting-text p {
    color: #4a5568;
    font-size: 15px;
    margin-bottom: 30px;
}

.contracting-features {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 35px;
}

.c-feature {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 700;
    color: #1a365d;
    font-size: 15px;
}

.c-feature i {
    color: #2b6cb0;
    font-size: 20px;
    width: 25px;
}

.contracting-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

/* --- 8. SIKÇA SORULAN SORULAR (FAQ) --- */
.faq-section {
    padding: 80px 8%;
    background-color: #f8f9fa;
    text-align: center;
}

.faq-section h2 {
    font-size: 32px;
    color: #1a365d;
    margin-bottom: 40px;
    font-weight: 800;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    width: 100%;
    padding: 20px 25px;
    background: none;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    font-size: 16px;
    font-weight: 700;
    color: #1a365d;
    cursor: pointer;
}

.faq-question i {
    transition: transform 0.3s ease;
    color: #2b6cb0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background-color: #fcfcfc;
    text-align: left;
}

.faq-answer p {
    padding: 0 25px 20px 25px;
    color: #4a5568;
    font-size: 14px;
}

.faq-item.active {
    border-color: #2b6cb0;
    box-shadow: 0 4px 12px rgba(43, 108, 176, 0.08);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

/* --- 9. İLETİŞİM & AKILLI TEKLİF FORMU --- */
.contact-section {
    padding: 80px 8%;
    background-color: #ffffff;
    text-align: center;
}

.contact-section h2 {
    font-size: 32px;
    color: #1a365d;
    margin-bottom: 10px;
    font-weight: 800;
}

.contact-section > p {
    color: #718096;
    margin-bottom: 50px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    text-align: left;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
    justify-content: center; /* İki kutuyu formun dikey hizasına ortalar */
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.info-item i {
    font-size: 20px;
    color: #2b6cb0;
    margin-top: 3px;
}

.info-item strong {
    color: #1a365d;
    font-size: 16px;
}

.info-item a, .info-item span {
    color: #4a5568;
    text-decoration: none;
    font-size: 14.5px;
}

.info-item a:hover {
    color: #2b6cb0;
}

.form-container {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #2b6cb0;
    box-shadow: 0 4px 20px rgba(43, 108, 176, 0.05);
}

.form-title {
    font-size: 18px;
    color: #1a365d;
    margin-bottom: 20px;
    font-weight: 700;
    border-bottom: 2px solid #edf2f7;
    padding-bottom: 10px;
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #4a5568;
    font-size: 13px;
}

.form-group input, 
.form-group textarea, 
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #cbd5e0;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    background-color: #fff;
    color: #333;
    transition: all 0.3s ease;
}

.form-group input:focus, 
.form-group textarea:focus, 
.form-group select:focus {
    border-color: #2b6cb0;
    box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
}

.map-container-full {
    margin-top: 50px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* --- 10. KURUMSUR FOOTER TASARIMI --- */
.site-footer {
    background-color: #1a365d;
    color: #ffffff;
    text-align: center;
    padding: 40px 20px; 
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-bottom: 20px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-weight: 600;
    font-size: 13.5px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #38bdf8;
}

/* --- 11. AKILLI YUKARI ÇIK BUTONU --- */
.back-to-top-btn {
    position: fixed;
    bottom: 105px;
    left: 30px;
    width: 45px;
    height: 45px;
    background-color: #1a365d;
    color: #ffffff;
    border: none;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.back-to-top-btn.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top-btn:hover {
    background-color: #2b6cb0;
    transform: translateY(-3px);
}

/* --- 12. FLOATING WHATSAPP BUTONU --- */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background-color: #25d366;
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #20ba5a;
}

/* --- 13. SCROLL REVEAL ANIMASYONU --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
                transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

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

/* --- 14. KARANLIK MOD (DARK MODE) AYARLARI --- */
.theme-btn {
    background: #edf2f7;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #1a365d;
    font-size: 16px;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    background-color: #e2e8f0;
    transform: scale(1.05);
}

body.dark-mode {
    background-color: #0f172a;
    color: #f1f5f9;
}

body.dark-mode .navbar { background-color: #1e293b; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2); }
body.dark-mode .site-logo { border-color: #38bdf8; background-color: #1e293b; filter: invert(0.6) sepia(1) saturate(5) hue-rotate(170deg) brightness(1.2); }
body.dark-mode .main-logo { color: #38bdf8; }
body.dark-mode .sub-logo, body.dark-mode .nav-links a { color: #cbd5e1; }
body.dark-mode .nav-links a:hover { color: #38bdf8; }
body.dark-mode .hamburger-menu span { background-color: #38bdf8; }
body.dark-mode .lang-switcher { background-color: #334155; }
body.dark-mode .lang-btn { color: #94a3b8; }
body.dark-mode .lang-btn.active { background-color: #38bdf8; color: #0f172a; }
body.dark-mode .theme-btn { background-color: #334155; color: #e2e8f0; }

body.dark-mode .hero {
    background: linear-gradient(rgba(15, 23, 42, 0.35), rgba(15, 23, 42, 0.35)), url('mac.jpg') no-repeat center 35%;
    background-size: cover;
}
body.dark-mode .hero-overlay-content h1 { color: #ffffff; }
body.dark-mode .hero-overlay-content p { color: #94a3b8; }

/* --- 💎 KARANLIK MODDA BUTONUN SİHİRLİ DÖNÜŞÜMÜ (GÜNCEL) --- */
body.dark-mode .hero-overlay-content .btn { 
    background-color: rgba(255, 255, 255, 0.12) !important; 
    color: #ffffff !important; 
    border: 1px solid rgba(255, 255, 255, 0.25) !important; 
    backdrop-filter: blur(10px); 
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

body.dark-mode .hero-overlay-content .btn:hover {
    background-color: rgba(255, 255, 255, 0.22) !important; 
    border-color: rgba(255, 255, 255, 0.45) !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

body.dark-mode .btn-shine::after { 
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,0.25) 50%, rgba(255,255,255,0) 100%) !important; 
}

body.dark-mode .stats-section { background-color: #1e293b; box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); }
body.dark-mode .stats-section h3 { color: #38bdf8; }
body.dark-mode .stats-section p { color: #94a3b8; }
body.dark-mode .slider-btn { background-color: #334155; border-color: #475569; color: #38bdf8; }
body.dark-mode .slider-btn:hover { background-color: #38bdf8; color: #0f172a; border-color: #38bdf8; }
body.dark-mode .services-section h2, body.dark-mode .service-card h3 { color: #f1f5f9; }
body.dark-mode .service-card { background-color: #1e293b; border-color: #334155; }
body.dark-mode .service-card:hover { border-color: #38bdf8; box-shadow: 0 10px 25px rgba(56, 189, 248, 0.1); }
body.dark-mode .service-icon { color: #38bdf8; }
body.dark-mode .service-card p { color: #94a3b8; }
body.dark-mode .process-section { background-color: #1e293b; }
body.dark-mode .process-section h2 { color: #f1f5f9; }
body.dark-mode .step-icon { background-color: #334155; color: #38bdf8; }
body.dark-mode .process-step:hover .step-icon { background-color: #38bdf8; color: #0f172a; }
body.dark-mode .step-content h3 { color: #f1f5f9; }
body.dark-mode .step-content p { color: #94a3b8; }
body.dark-mode .contracting-section { background-color: #0f172a; }
body.dark-mode .contracting-text h2 { color: #f1f5f9; }
body.dark-mode .contracting-text p { color: #94a3b8; }
body.dark-mode .c-feature { color: #cbd5e1; }
body.dark-mode .c-feature i { color: #38bdf8; }
body.dark-mode .btn-dark { background-color: #38bdf8; color: #0f172a; border-color: #38bdf8; }
body.dark-mode .btn-dark:hover { background-color: #0ea5e9; }
body.dark-mode .faq-section { background-color: #0f172a; }
body.dark-mode .faq-section h2 { color: #f1f5f9; }
body.dark-mode .faq-item { background-color: #1e293b; border-color: #334155; }
body.dark-mode .faq-question { color: #f1f5f9; }
body.dark-mode .faq-question i { color: #38bdf8; }
body.dark-mode .faq-answer { background-color: #1e293b; }
body.dark-mode .faq-answer p { color: #94a3b8; }
body.dark-mode .faq-item.active { border-color: #38bdf8; }
body.dark-mode .contact-section { background-color: #0f172a; }
body.dark-mode .contact-section h2 { color: #f1f5f9; }
body.dark-mode .info-item { background: #1e293b; border-color: #334155; }
body.dark-mode .info-item i, body.dark-mode .info-item strong { color: #38bdf8; }
body.dark-mode .info-item a, body.dark-mode .info-item span { color: #cbd5e1; }
body.dark-mode .form-container { background-color: #1e293b; border-color: #38bdf8; }
body.dark-mode .form-title { color: #f1f5f9; border-color: #334155; }
body.dark-mode .form-group label { color: #cbd5e1; }
body.dark-mode .form-group input, body.dark-mode .form-group textarea, body.dark-mode .form-group select { background-color: #334155; border-color: #475569; color: #f1f5f9; }
body.dark-mode .form-group input:focus, body.dark-mode .form-group textarea:focus, body.dark-mode .form-group select:focus { border-color: #38bdf8; box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15); }
body.dark-mode .site-footer { background-color: #1e293b; color: #94a3b8; border-top-color: #334155; }
body.dark-mode .footer-links a { color: rgba(255,255,255,0.5); }
body.dark-mode .footer-links a:hover { color: #38bdf8; }
body.dark-mode .back-to-top-btn { background-color: #38bdf8; color: #0f172a; }

/* --- 15. RESPONSIVE --- */
@media (max-width: 968px) {
    .contact-grid, .contracting-container { grid-template-columns: 1fr; }
    .contracting-image img { height: 280px; }
    .service-card { flex: 0 0 calc(50% - 15px); }
}

@media (max-width: 768px) {
    .navbar { padding: 15px 5% !important; }
    .hamburger-menu { display: flex; }
    
    /* MOBİLDE CAM EFEKTLİ AKICI PERDE MENÜ */
    .nav-links {
        position: fixed;
        left: -100%; 
        top: 0;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.85) !important; 
        backdrop-filter: blur(15px) saturate(180%); 
        -webkit-backdrop-filter: blur(15px) saturate(180%);
        box-shadow: 4px 0 15px rgba(0,0,0,0.1);
        width: 260px; 
        height: 100vh;
        padding-top: 90px;
        transition: left 0.4s cubic-bezier(0.85, 0, 0.15, 1);
        z-index: 1000;
    }
    .nav-links.active { left: 0; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 18px 30px; border-bottom: 1px solid rgba(0,0,0,0.05); font-size: 16px; }
    
    .hero {
        height: auto;
        min-height: 100vh; 
        padding-top: 140px; 
        background-position: 55% center; 
    }
    .hero-overlay-content h1 {
        font-size: 30px;
        letter-spacing: -0.8px;
    }
    .hero-overlay-content p {
        font-size: 15px;
    }
    
    .service-card { flex: 0 0 100%; padding: 30px 20px; }
    .stats-section { flex-direction: column; gap: 20px; width: 90%; padding: 30px 20px; }
    .process-timeline { grid-template-columns: 1fr; }
    .form-row-2, .form-row-3 { grid-template-columns: 1fr; gap: 0; }
    
    .hamburger-menu.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger-menu.active span:nth-child(2) { opacity: 0; transform: translateX(-10px); }
    .hamburger-menu.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
    
    body.dark-mode .nav-links { 
        background-color: rgba(30, 41, 59, 0.85) !important; 
        border-right: 1px solid rgba(255,255,255,0.05);
    }
    
    .back-to-top-btn { bottom: 105px; left: auto; right: 20px; width: 40px; height: 40px; }
    .whatsapp-float { bottom: 30px; left: auto; right: 20px; width: 50px; height: 50px; font-size: 24px; }
    .footer-links { gap: 15px; }
}