/* --- Değişkenler (Renk Paleti) --- */
:root {
    --bg-color: #F3F4F6; /* Açık Gri */
    --text-main: #1F2937; /* Koyu Antrasit */
    --text-muted: #4B5563; /* Orta Gri */
    --accent-color: #10B981; /* Zümrüt Yeşili */
    --accent-hover: #059669; /* Koyu Zümrüt Yeşili */
    --white: #FFFFFF;
}

/* --- Temel Ayarlar --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Navigasyon (Header) --- */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(209, 250, 229, 0.9); /* Belirgin açık yeşil tonu (Glassmorphism) */
    backdrop-filter: blur(10px); /* Glassmorphism efekti */
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 5px 0;
}

header.scrolled {
    padding: 5px 0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 75px;
    width: auto;
    transition: height 0.3s ease;
}

header.scrolled .logo-image {
    height: 45px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-links a:focus-visible, .btn:focus-visible {
    outline: 2px dashed var(--accent-color);
    outline-offset: 4px;
}

.nav-links a:hover {
    color: var(--accent-color);
}

.btn-contact {
    border: 2px solid var(--accent-color);
    padding: 8px 16px;
    border-radius: 6px;
    color: var(--accent-color) !important;
}

.btn-contact:hover {
    background-color: var(--accent-color);
    color: var(--white) !important;
}

/* --- Hamburger Menü Butonu --- */
.hamburger {
    display: none;
    cursor: pointer;
    border: none;
    background: transparent;
    padding: 5px;
    z-index: 1001; /* Menünün üstünde kalması için */
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-main);
    transition: all 0.3s ease;
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px; /* Header yüksekliği için boşluk */
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-content {
    flex: 1;
}

.badge {
    display: inline-block;
    color: var(--accent-color);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-main);
}

.highlight {
    color: var(--accent-color);
}

p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 90%;
}

/* --- Butonlar --- */
.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    padding: 14px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--white);
    border: none;
    box-shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 2px solid #D1D5DB; /* Açık gri kenarlık */
}

.btn-outline:hover {
    border-color: var(--text-main);
}

/* --- Sağ Görsel (Kod Mockup) --- */
.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.hero-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.mockup-window {
    background-color: #1F2937;
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.mockup-header {
    background-color: #374151;
    padding: 12px 16px;
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background-color: #EF4444; }
.dot.yellow { background-color: #F59E0B; }
.dot.green { background-color: #10B981; }

.mockup-body {
    padding: 24px;
    color: #E5E7EB;
    font-family: monospace;
    font-size: 0.95rem;
    line-height: 1.5;
}

.keyword { color: #F472B6; } /* Pembe */
.variable { color: #60A5FA; } /* Mavi */
.string { color: #A7F3D0; } /* Açık Yeşil */

/* --- Animasyonlar --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-delayed {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease 0.3s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Hizmetler (Services) Section --- */
.services {
    padding: 100px 0;
    background-color: var(--white);
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--text-main);
    margin-bottom: 15px;
}

.section-header p {
    margin: 0 auto;
    max-width: 600px;
    color: var(--text-muted);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--bg-color);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.service-card:hover {
    transform: translateY(-10px); /* Yukarı doğru hafif kalkma hareketi */
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: rgba(16, 185, 129, 0.3); /* Seçili tema rengimizle çok hafif bir kenarlık parlaması */
}

.service-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 70px; /* Görseller için ayrılan standart yükseklik */
}

.service-icon img {
    max-height: 100%;
    width: auto;
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--text-main);
    margin-bottom: 15px;
}

.service-card p {
    font-size: 1rem;
    margin: 0;
    max-width: 100%;
}

/* --- Portfolyo (Portfolio) Section --- */
.portfolio {
    padding: 100px 0;
    background-color: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.portfolio-card {
    background-color: var(--bg-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: rgba(16, 185, 129, 0.3);
}

.portfolio-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: #E5E7EB;
    position: relative;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top; /* Sitelerin üst kısımlarının görünmesini sağlar */
    transition: transform 0.5s ease;
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.05); /* Üzerine gelince resim hafif yakınlaşır */
}

.portfolio-image iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 400%;
    height: 400%;
    border: none;
    pointer-events: none;
    transition: transform 0.5s ease;
    transform: scale(0.25); /* Yüzde 400 büyütülmüş iframe'i 4'te 1 oranında küçültür */
    transform-origin: top left; /* Küçültme işlemini sol üst köşeden başlatır */
}

.portfolio-card:hover .portfolio-image iframe {
    transform: scale(0.26); /* Üzerine gelince %25'ten %26'ya hafifçe büyür */
}

.portfolio-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-content h3 {
    font-size: 1.25rem;
    color: var(--text-main);
    margin-bottom: 10px;
}

.portfolio-content p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    flex-grow: 1;
}

.portfolio-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.portfolio-link:hover {
    color: var(--accent-hover);
}

/* --- İletişim (Contact) Section --- */
.contact-section {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
    background-color: var(--white);
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0,0,0,0.05);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item h3 {
    font-size: 1.2rem;
    color: var(--text-main);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.info-item p, .info-item a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.info-item a:hover {
    color: var(--accent-color);
}

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

.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #D1D5DB;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--bg-color);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
    background-color: var(--white);
}

/* --- Footer --- */
.site-footer {
    background-color: #D1FAE5; /* Belirgin açık yeşil tonu */
    color: var(--text-muted);
    text-align: left;
    padding: 60px 0 20px 0;
    border-top: 1px solid rgba(16, 185, 129, 0.1);
}

.site-footer p {
    font-size: 0.85rem;
    margin: 0;
}

/* --- Mobil Uyumluluk --- */
@media (max-width: 768px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
        margin-top: 40px;
    }
    
    h1 { font-size: 2.5rem; }
    p { margin: 0 auto 30px auto; }
    
    .hero-buttons {
        justify-content: center;
        flex-direction: column;
    }
    
    .hamburger { 
        display: block; 
    }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: 0;
        flex-direction: column;
        background-color: var(--bg-color);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: left 0.3s ease;
        justify-content: center;
        z-index: 1000;
    }
    
    .nav-links.active { left: 0; }
    
    .hamburger.active .bar:nth-child(2) { opacity: 0; }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-image {
        margin-top: 40px;
        width: 100%;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        padding: 30px 20px;
    }
}