/* Genel Ayarlar */
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@300;400;700&family=Roboto:wght@300;400;700&display=swap');

:root {
    --neon-yellow: #D0FF00;
    --dark-bg: #0a0a0a;
    --text-white: #ffffff;
    --text-grey: #b3b3b3;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-white);
    background-color: var(--dark-bg);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul {
    list-style: none;
}

/* Header & Navigasyon */
header {
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: 'Oswald', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-white);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-family: 'Oswald', sans-serif;
    color: var(--text-white);
    font-weight: 400;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

/* Hero Bölümü */
.hero {
    min-height: 100vh;
    height: auto;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?q=80&w=2070&auto=format&fit=crop');
    /* Placeholder tech background */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    padding-top: 200px;
    padding-bottom: 100px;
}

.hero-content {
    max-width: 1000px;
    padding: 0 20px;
}

.profile-container {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto 2rem auto;
    border-radius: 50%;
    border: 4px solid var(--neon-yellow);
    box-shadow: 0 0 30px rgba(208, 255, 0, 0.3);
    overflow: hidden;
    background-color: #000;
    /* Fallback */
}

.profile-base,
.profile-overlay {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.profile-overlay {
    --x: 50%;
    --y: 50%;
    mask-image: radial-gradient(circle 100px at var(--x) var(--y), black 100%, transparent 100%);
    -webkit-mask-image: radial-gradient(circle 100px at var(--x) var(--y), black 100%, transparent 100%);
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.profile-container:hover .profile-overlay {
    opacity: 1;
}

.hero h1 {
    font-family: 'Oswald', sans-serif;
    font-size: 5rem;
    margin-bottom: 0.5rem;
    color: var(--text-white);
    text-transform: uppercase;
    line-height: 1;
    letter-spacing: -1px;
}

.hero p {
    font-family: 'Oswald', sans-serif;
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--neon-yellow);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero .location {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    color: var(--text-grey);
    font-weight: 300;
    letter-spacing: 1px;
}

.btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: transparent;
    color: var(--neon-yellow);
    border: 2px solid var(--neon-yellow);
    font-family: 'Oswald', sans-serif;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: all 0.3s;
}

.btn:hover {
    background: var(--neon-yellow);
    color: var(--dark-bg);
    box-shadow: 0 0 20px rgba(208, 255, 0, 0.5);
}

/* Bölümler Genel */
.section {
    padding: 8rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.section h2 {
    font-family: 'Oswald', sans-serif;
    font-size: 4rem;
    margin-bottom: 4rem;
    color: var(--text-white);
    text-transform: uppercase;
    text-align: center;
    letter-spacing: -1px;
}

.section h2::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: var(--neon-yellow);
    margin: 1rem auto 0;
}

.bg-light {
    background-color: #111;
}

/* Hakkımda */
.about-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1.2rem;
    color: var(--text-grey);
    margin-bottom: 1rem;
}

.languages {
    margin-top: 2rem;
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    color: var(--neon-yellow);
    text-transform: uppercase;
}

/* Deneyim Bölümü */
.experience-item {
    background: #1a1a1a;
    padding: 3rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--neon-yellow);
    transition: transform 0.3s;
}

.experience-item:hover {
    transform: translateX(10px);
}

.experience-item h3 {
    font-family: 'Oswald', sans-serif;
    color: var(--text-white);
    font-size: 2rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.experience-item .date {
    color: var(--neon-yellow);
    font-family: 'Oswald', sans-serif;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.experience-item ul {
    list-style-type: none;
    margin-left: 0;
    color: var(--text-grey);
}

.experience-item ul li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.experience-item ul li::before {
    content: '>';
    color: var(--neon-yellow);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Yetkinlikler Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: #1a1a1a;
    padding: 2rem;
    border-top: 2px solid var(--neon-yellow);
}

.skill-category h3 {
    font-family: 'Oswald', sans-serif;
    color: var(--text-white);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    text-transform: uppercase;
}

.skill-category p {
    color: var(--text-grey);
    font-size: 1.1rem;
}

/* Projeler Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: #1a1a1a;
    padding: 3rem;
    transition: all 0.3s;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--neon-yellow);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.project-card h3 {
    font-family: 'Oswald', sans-serif;
    margin-bottom: 1rem;
    color: var(--text-white);
    font-size: 2rem;
    text-transform: uppercase;
}

.project-card h3 a {
    color: var(--text-white);
}

.project-card h3 a:hover {
    color: var(--neon-yellow);
}

.project-card p {
    color: var(--text-grey);
    font-size: 1.1rem;
}

/* İletişim */
.contact-content {
    text-align: center;
}

.contact-info p {
    font-size: 1.2rem;
    color: var(--text-grey);
    margin-bottom: 1rem;
}

.contact-info strong {
    color: var(--text-white);
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    margin-right: 10px;
}

.email-link {
    font-family: 'Oswald', sans-serif;
    font-size: 2rem;
    color: var(--neon-yellow);
    font-weight: bold;
    margin-top: 2rem;
    display: inline-block;
    text-transform: uppercase;
}

.email-link:hover {
    color: var(--text-white);
    text-shadow: 0 0 20px var(--neon-yellow);
}

/* Footer */
footer {
    background: #000;
    color: var(--text-grey);
    text-align: center;
    padding: 4rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
}

/* Mobil Uyumluluk */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }

    .hero p {
        font-size: 1.5rem;
    }

    .section h2 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
        /* Basitlik için mobilde menüyü gizledik */
    }

    .section {
        padding: 4rem 1rem;
    }
}