/* --- Değişkenler (Açık Tema - Varsayılan) --- */
:root {
    --primary-haki: #4A5D23;
    --primary-dark: #3b4a1c;
    --secondary-haki: #7B8B6F;
    
    /* Dinamik Renkler */
    --bg-color: #F8F9F5;
    --bg-light: #FFFFFF;
    --text-main: #2C3327;
    --text-muted: #5a6650;
    --border-color: #e0e4d8;
    
    --accent: #D4C9A8;
    --transition: all 0.3s ease;

    /* Logo Filtresi (Açık Tema - Haki Yeşil) */
--logo-filter: invert(15%) sepia(20%) saturate(1000%) hue-rotate(60deg) brightness(80%) contrast(100%);
}

/* --- Değişkenler (Koyu Tema) --- */
:root[data-theme="dark"] {
    --bg-color: #12140e; 
    --bg-light: #1A1D16; 
    --text-main: #F8F9F5; 
    --text-muted: #a3b097; 
    --border-color: #2C3327; 
    
    /* Logo Filtresi (Koyu Tema - Beyaz) */
    --logo-filter: brightness(0) invert(1);
}

/* --- Temel Ayarlar --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Butonlar --- */
.btn-primary {
    display: inline-block;
    background-color: var(--primary-haki);
    color: #fff;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid var(--primary-haki);
    cursor: pointer;
}

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

.btn-outline {
    display: inline-block;
    border: 2px solid var(--primary-haki);
    color: var(--primary-haki);
    padding: 8px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline:hover {
    background-color: var(--primary-haki);
    color: #fff;
}

/* --- Navigasyon --- */
header {
    background-color: var(--bg-light);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 8px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Dark Mode Buton Stili */
.theme-btn {
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.4rem;
    cursor: pointer;
    transition: var(--transition);
}

.theme-btn:hover {
    color: var(--primary-haki);
    transform: scale(1.1);
}

/* Logo Stilleri */
.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-image {
    width: auto;
    transition: var(--transition);
    /* Dinamik filtre kullanımı */
    filter: var(--logo-filter);
}

.logo-navbar-large {
    max-height: 75px;
}

.logo-image:hover {
    transform: scale(1.03);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: var(--transition);
}

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

/* --- Bölüm (Section) Genel --- */
.section {
    padding: 100px 0;
}

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--primary-haki);
}

.section-title.text-left {
    text-align: left;
    margin-bottom: 20px;
}

/* --- Birleştirilmiş Hero & Hakkımda --- */
.section-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 20px 60px;
    background-color: var(--bg-color); /* Dinamik arka plan */
    color: var(--text-main); /* Dinamik metin rengi */
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    width: 100%;
}

.hero-text-side {
    flex: 1;
    text-align: left;
}

.hero-image-side {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.hero-profile-pic {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid var(--primary-haki);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    transition: var(--transition);
}

.hero-profile-pic:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.hero-text-side h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
}

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

.hero-text-side h2 {
    font-size: 1.5rem;
    color: var(--secondary-haki);
    margin-bottom: 25px;
    font-weight: 500;
}

.hero-text-side p {
    font-size: 1.1rem;
    color: var(--text-muted); /* Temaya göre soluklaşan metin */
    margin-bottom: 35px;
    max-width: 600px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

/* --- YATAY DENEYİM ZAMAN ÇİZELGESİ --- */
.horizontal-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.timeline-card {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-top: 4px solid var(--primary-haki); 
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transition: var(--transition);
    position: relative; 
}

.timeline-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.05);
    border-color: var(--primary-haki);
}

.company-logo {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 55px; 
    height: 55px;
    object-fit: contain;
    border-radius: 6px;
    background-color: #ffffff; 
    padding: 3px;
    border: 1px solid var(--border-color);
}

.timeline-date {
    display: inline-block;
    background-color: rgba(74, 93, 35, 0.1);
    color: var(--primary-haki);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.timeline-card h3 {
    color: var(--text-main);
    font-size: 1.1rem; 
    margin-bottom: 5px;
    padding-right: 50px; 
}

.timeline-card h4 {
    color: var(--secondary-haki);
    font-size: 0.95rem;
    margin-bottom: 12px;
    font-weight: 500;
}

.timeline-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.timeline-card p {
    color: var(--text-muted);
    font-size: 0.9rem; 
    line-height: 1.5;
}

/* --- Yetenekler Grid --- */
.skills-grid {
    display: flex;
    flex-wrap: wrap; 
    justify-content: center; 
    gap: 15px; 
    margin-top: 40px;
}

.skill-card {
    background-color: var(--bg-color); 
    padding: 10px 25px; 
    border-radius: 50px; 
    border: 1px solid var(--border-color); 
    border-bottom: 3px solid var(--primary-haki);
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transition: var(--transition);
    display: flex;
    flex-direction: row; 
    align-items: center;
    gap: 10px; 
}

.skill-card:hover {
    transform: translateY(-3px); 
    box-shadow: 0 8px 15px rgba(0,0,0,0.05);
    border-bottom-color: var(--primary-dark);
}

.skill-name {
    font-weight: 600;
    font-size: 0.95rem; 
    color: var(--text-main);
    transition: var(--transition);
    white-space: nowrap; 
}

.skill-icon {
    font-size: 1.5rem; 
    color: var(--primary-haki); 
    transition: var(--transition);
}

.skill-card:hover .skill-icon {
    color: var(--primary-dark);
}

.skill-icon-group {
    display: flex;
    gap: 6px;
    font-size: 1.2rem; 
    color: var(--primary-haki);
    transition: var(--transition);
}

.skill-card:hover .skill-icon-group {
    color: var(--primary-dark);
}

/* --- Projeler Grid --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--primary-haki);
    box-shadow: 0 10px 20px rgba(74, 93, 35, 0.08);
}

.project-card h3 {
    color: var(--primary-haki);
    margin-bottom: 15px;
}

.project-card p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.project-link {
    text-decoration: none;
    color: var(--primary-haki);
    font-weight: 600;
}

.project-link:hover {
    text-decoration: underline;
}

/* --- Footer --- */
.footer {
    background-color: var(--primary-haki);
    color: #F8F9F5; 
    padding: 30px 20px; 
}

.footer-content {
    display: flex;
    align-items: center; 
    gap: 40px; 
}

.footer-logo-link {
    text-decoration: none;
}

.footer-logo-image {
    width: auto;
    filter: brightness(0) invert(1); /* Footer logosu her zaman beyaz kalsın */
    opacity: 0.9;
    transition: var(--transition);
}

.footer-logo-large {
    max-height: 80px; 
}

.footer-logo-image:hover {
    opacity: 1;
    transform: scale(1.02);
}

.footer-text-content h2 {
    margin-bottom: 5px; 
}

.footer-text-content p {
    opacity: 0.9;
    margin-bottom: 10px; 
    max-width: 600px;
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 15px; 
}

/* --- Sosyal Medya Linkleri --- */
.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    margin-bottom: 10px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px; 
    height: 40px;
    background-color: #F8F9F5;
    color: var(--primary-haki);
    border-radius: 50%;
    font-size: 1.1rem;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.social-icon:hover {
    background-color: var(--accent);
    color: var(--primary-dark);
    transform: translateY(-5px);
}

/* Mobil için Düzenlemeler */
/* --- Mobil Hero Optimizasyonu --- */
/* --- MOBİL OPTİMİZASYONU (NAVBAR & HERO) --- */
@media (max-width: 768px) {
    /* 1. Navbar Düzenlemesi */
    header {
        background-color: var(--bg-light);
        padding: 5px 0; /* Navbar'ı mobilde daha ince yaptık */
    }

    .nav-container {
        padding: 5px 15px;
        display: flex;
        justify-content: space-between;
        align-items: center; /* Dikeyde tam ortalama */
    }

    .logo-navbar-large {
        max-height: 45px; /* Logoyu mobilde küçülterek yer açtık */
    }

    .nav-actions {
        gap: 8px; /* Buton ve ay ikonu arasındaki boşluğu daralttık */
    }

    .btn-outline {
        padding: 6px 12px; /* İletişim butonunu mobilde küçülttük */
        font-size: 0.85rem;
    }

    .theme-btn {
        font-size: 1.2rem; /* Ay ikonunu küçülttük */
    }

    .nav-links {
        display: none; /* Menü linkleri zaten kapalıydı, böyle kalsın */
    }

    /* 2. Hero Bölümü Düzenlemesi */
    .section-hero {
        padding: 90px 20px 40px; /* Navbar daraldığı için üst boşluğu 90px'e çektik */
        min-height: auto; 
    }

    .hero-content {
        flex-direction: column-reverse;
        gap: 20px;
    }

    .hero-profile-pic {
        width: 160px; /* Bir tık daha küçülttük, daha fit duracak */
        height: 160px;
        border-width: 4px;
    }

    .hero-text-side h1 {
        font-size: 2rem;
        margin-bottom: 8px;
    }

    .hero-text-side h2 {
        font-size: 1.1rem;
        margin-bottom: 15px;
    }

    .hero-text-side p {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 25px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .btn-primary, .hero-text-side .btn-outline {
        width: 100%;
        text-align: center;
        padding: 12px 20px;
    }
}


/* --- Proje Detay Modal Tasarımı --- */
.modal {
    display: none; 
    position: fixed; 
    z-index: 2000; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    background-color: rgba(0, 0, 0, 0.7); /* Arka planı biraz daha kararttık */
    backdrop-filter: blur(8px); /* Daha güçlü buzlu cam efekti */
    transition: var(--transition);
}

.modal-content {
    background-color: var(--bg-light);
    color: var(--text-main);
    margin: 10% auto;
    padding: 40px;
    border-radius: 16px;
    width: 90%;
    max-width: 550px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    animation: modalFadeIn 0.4s ease-out;
}

@keyframes modalFadeIn {
    from { transform: translateY(-30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close-modal {
    position: absolute;
    right: 25px;
    top: 20px;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    transition: var(--transition);
}

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

/* Modal İçerik Stilleri */
#modal-body h2 { 
    color: var(--primary-haki); 
    margin-bottom: 20px; 
    font-size: 1.8rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

#modal-body p {
    margin-bottom: 15px;
    line-height: 1.6;
}

#modal-body strong {
    color: var(--secondary-haki);
}

#modal-body ul { 
    margin: 20px 0; 
    padding-left: 5px; 
    list-style: none;
}

#modal-body li { 
    margin-bottom: 12px; 
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
}

#modal-body li i {
    color: var(--primary-haki);
    font-size: 0.9rem;
}

/* Modal Butonu */
.modal-close-btn {
    width: 100%;
    margin-top: 25px;
    text-align: center;
}

/* Mobilde Modal Ayarı */
@media (max-width: 768px) {
    .modal-content {
        margin: 20% auto;
        padding: 25px;
        width: 95%;
    }
    
    #modal-body h2 {
        font-size: 1.5rem;
    }
}