:root {
    --bg-dark: #050505;
    --card-bg: #111111;
    --text-main: #e0e0e0;
    --text-dim: #888888;
    --accent-neon: #00f2ff;
    --accent-purple: #bd00ff;
    --border-color: #222;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

header {
    padding: 50px 20px 50px 20px;
    text-align: center;
    position: relative;
}

h1 {
    font-family: 'Mr Dafoe', cursive;
    font-size: 6rem;
    font-weight: 400;
    color: #fff;
    margin: 0 auto 10px auto; /* Margin ile ortala */
    line-height: 1.2; 
    padding: 20px; /* Padding'i azalttık */
    width: 100%;
    text-align: center;
    
    transform: rotate(-3deg);
    text-shadow: 
        0 0 10px #bd00ff,
        0 0 30px #bd00ff,
        0 0 60px #00f2ff,
        0 0 100px #00f2ff;
        
    z-index: 2;
    position: relative;
    box-sizing: border-box; /* Padding'in genişliği bozmasını engeller */
}

.subtitle {
    font-family: 'JetBrains Mono', monospace;
    color: var(--accent-neon);
    font-size: 1rem;
    letter-spacing: 6px;
    text-transform: uppercase;
    margin-top: 0;
    text-shadow: 0 0 10px rgba(0, 242, 255, 0.6);
    opacity: 0.9;
    position: relative;
    z-index: 2;
}

.subtitle span { color: var(--accent-neon); }

#gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    padding: 20px 5%;
    max-width: 1600px;
    margin: 0 auto 100px auto;
}

/* Geri Dön Tuşu Stili */
.back-to-home {
    position: fixed;
    top: 30px;
    left: 30px;
    z-index: 1001; /* Header'ın üzerinde kalsın */
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 5px;
}

.back-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.back-to-home:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 123, 255, 0.2);
    background: rgba(0, 123, 255, 0.05);
}

.back-to-home:hover .back-icon {
    transform: translateX(-5px); /* Ok sola doğru kayar */
}

/* --- Kart Tasarımı --- */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-neon);
    box-shadow: 0 10px 30px rgba(0, 242, 255, 0.15);
}

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
    z-index: 5;
}

.badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    background: rgba(0, 242, 255, 0.1);
    color: var(--accent-neon);
    padding: 4px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 8px;
}

.card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-top: 5px;
    line-height: 1.5;
}

/* --- Preview Alanı --- */
.preview-area {
    flex-grow: 1;
    padding: 20px;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

lab-project {
    width: 100%;
    display: flex;
    justify-content: center;
    height: 350px; 
    background: #000;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 40px;
    color: var(--border-color);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

/* --- Animasyonlar --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    header {
        padding: 80px 10px 30px 10px; /* Üstten boşluk ekledik ki 'Geri Dön' butonuyla çakışmasın */
    }

    h1 { 
        font-size: 3.5rem; /* Mobilde daha makul bir boyut */
        padding: 10px;
        transform: rotate(-2deg); /* Eğimi biraz azalttık, taşmayı önler */
        word-wrap: break-word; /* Uzun kelimelerin taşmasını engeller */
    }

    .subtitle { 
        font-size: 0.7rem; 
        letter-spacing: 2px;
        padding: 0 10px;
    }

    #gallery {
        grid-template-columns: 1fr;
        padding: 20px 15px;
    }

    .back-to-home {
        top: 15px;
        left: 15px;
        padding: 8px 12px;
        font-size: 0.7rem;
    }
}