:root {
    /* Light theme variables */
    --primary-color: #233657;
    --accent-color: #E85A4F;
    --text-color: #333;
    --bg-color: #fff;
    --light-gray: #f5f5f5;
    --card-bg: #fff;
    --header-bg: #fff;
}

/* Dark theme variables */
[data-theme="dark"] {
    --primary-color: #64ffda;
    --accent-color: #E85A4F;
    --text-color: #e6e6e6;
    --bg-color: #0a192f;
    --light-gray: #172a45;
    --card-bg: #172a45;
    --header-bg: #0a192f;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    background-color: var(--bg-color);
}

/* Header Styles */
header {
    position: fixed;
    width: 100%;
    height: 150px;
    top: 0;
    background: var(--header-bg);
    z-index: 1000;
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-color);
    text-decoration: none;
}

/* Ana menü */
nav {
    display: flex;
    gap: 3rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav a i {
    font-size: 1.2rem;
}

nav a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.hire-me {
    background: var(--light-gray);
    color: var(--text-color);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.hire-me:hover {
    background: var(--accent-color);
    color: white;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 120px 2fr 1fr;
    align-items: center;
    padding-top: 80px;
    padding-left: 5%;
    padding-right: 5%;
    gap: 2rem;
}

.social-links {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    padding-left: 2rem;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.social-link {
    color: var(--text-color);
    font-size: 1.4rem;
    transition: all 0.3s ease;
    opacity: 0.7;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transform: translateX(0);
}

.social-link:hover {
    transform: translateX(10px);
    opacity: 1;
    color: var(--accent-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.link-text {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.social-link:hover {
    transform: translateX(10px);
    opacity: 1;
    color: var(--accent-color);
}

/* Aktif link için stil */
.social-link.active {
    color: var(--accent-color);
    opacity: 1;
    transform: translateX(10px);
}

/* Aktif link için gösterge çizgisi */
.social-link.active::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    width: 3px;
    height: 20px;
    background-color: var(--accent-color);
    border-radius: 3px;
    transform: translateY(-50%);
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
}

.pre-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
}

.name {
    font-family: 'Playfair Display', serif;
    font-size: 4.2rem;
    color: var(--primary-color);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.description {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--text-color);
    max-width: 500px;
    margin-bottom: 2rem;
}

#aboutButton,
.cv-download-button {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 1.2rem 2.5rem;
    border-radius: 5px;
    cursor: pointer;
    width: fit-content;
    font-size: 1.1rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

#aboutButton:hover {
    transform: translateY(-2px);
}

.hero-image {
    display: none;
    /* Varsayılan olarak gizli */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

/* Sadece home section aktif olduğunda göster */
#home.active~.hero-image {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.hero-image img {
    max-width: 90%;
    height: auto;
}

@keyframes floatImage {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 120px 1fr 1fr;
        gap: 1rem;
    }

    .name {
        font-size: 3.5rem;
    }

    .pre-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1rem 5%;
        flex-direction: column;
        align-items: flex-start;
    }

    .logo {
        margin-bottom: 1rem;
    }

    .nav-menu {
        display: none;
    }

    .nav-menu.active {
        display: flex;
        flex-direction: column;
        width: 100%;
        background: var(--bg-color);
        position: absolute;
        top: 100%;
        left: 0;
        padding: 1rem 0;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    nav a {
        padding: 0.5rem 1rem;
        width: 100%;
        text-align: left;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 2rem 1rem;
    }

    .hero-content {
        align-items: center;
    }

    .pre-title {
        font-size: 1.8rem;
    }

    .name {
        font-size: 3rem;
    }

    .description {
        font-size: 1.1rem;
        max-width: 100%;
    }

    .learn-more {
        margin: 1rem auto;
    }

    .social-links {
        flex-direction: row;
        justify-content: center;
        padding: 1rem 0;
    }

    .social-link {
        font-size: 1.2rem;
    }

    .about-container {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .timeline {
        margin: 2rem 0;
    }

    .timeline-item {
        padding-left: 60px;
    }

    .timeline-date {
        left: 0;
        width: 50px;
    }

    .timeline-content {
        padding: 1rem;
    }

    .skills-section,
    .references-container {
        margin-top: 2rem;
        padding: 1rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .portfolio-item {
        margin: 0 auto;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .contact-card {
        padding: 1.5rem;
    }

    .logo img {
        width: 100px;
        height: auto;
    }
}

/* Daha küçük ekranlar için (480px ve altı) */
@media (max-width: 480px) {
    .pre-title {
        font-size: 1.6rem;
    }

    .name {
        font-size: 2.8rem;
    }

    .description {
        font-size: 1rem;
    }

    .learn-more {
        font-size: 0.9rem;
    }

    .portfolio-link {
        padding: 0.6rem 1rem;
    }

    .logo img {
        width: 80px;
        height: auto;
    }
}

/* Section Styles */
.section {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Content container için yeni stil */
.content {
    position: relative;
    min-height: 500px;
    width: 100%;
    display: flex;
    align-items: center;
    padding-left: 3rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.5s ease forwards;
}

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

/* Çıkış animasyonu için yeni class */
.section.fade-out {
    opacity: 0;
    transform: translateX(-100px);
    display: block;
}

/* About Section */
.about-content {
    max-width: 1000px;
    margin: 2rem 0;
}

.skills {
    margin-top: 2rem;
}

.skill-items {
    margin-top: 1rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--light-gray);
    border-radius: 4px;
    margin-top: 0.5rem;
}

.progress {
    height: 100%;
    background: var(--accent-color);
    border-radius: 4px;
    transition: width 1s ease;
}

/* Portfolio Styles */
#portfolio {
    padding: 2rem 5%;
}

.section-title {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    background: var(--card-bg);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.portfolio-image {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    background: rgba(0, 0, 0, 0.7);
}

.portfolio-info {
    color: #fff;
    text-align: center;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.portfolio-item:hover .portfolio-info {
    transform: translateY(0);
}

.portfolio-info h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.portfolio-tech {
    color: white;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    font-family: monospace;
}

.portfolio-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.portfolio-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    border-radius: 5px;
    background: var(--primary-color);
    color: var(--bg-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: transform 0.3s ease, background 0.3s ease;
}

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

/* Responsive düzenlemeler */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    .portfolio-item {
        max-width: 500px;
        margin: 0 auto;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
}

@media (max-width: 480px) {
    .portfolio-links {
        flex-direction: column;
    }

    .portfolio-link {
        width: 100%;
        justify-content: center;
    }
}

/* Contact Section */
.contact-content {
    padding: 2rem 0;
}

.contact-text {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem auto;
}

.contact-text p {
    font-size: 1.2rem;
    color: var(--text-color);
    line-height: 1.6;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.contact-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.contact-card i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact-card p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive tasarım */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Responsive tasarımdan hamburger ile ilgili kodları kaldır */
@media (max-width: 768px) {
    .hamburger {
        display: block;
        position: relative;
    }

    body.menu-open {
        overflow: hidden;
    }
}

/* Sosyal medya ikonları için stiller */
.social-media-icons {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1.5rem;
    z-index: 100;
}

.social-media-link {
    color: var(--text-color);
    font-size: 1.2rem;
    transition: all 0.3s ease;
    opacity: 0.7;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.social-media-link:hover {
    transform: translateY(-5px);
    opacity: 1;
    color: var(--accent-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Dark mode toggle */
.dark-mode-toggle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: var(--light-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.dark-mode-toggle:hover {
    background: var(--accent-color);
    color: white;
}

[data-theme="dark"] .dark-mode-toggle {
    color: #ffd700;
}

/* Aktif menü linki için stil */
nav a.active {
    color: var(--accent-color);
    transform: translateY(-2px);
}

nav a.active i {
    color: var(--accent-color);
}

/* Responsive tasarım için portfolio grid düzenlemesi */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        padding: 0 1rem;
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 0 1rem;
    }
}

/* Contact section aktif olduğunda social links'i gizle */
.section#contact.active~.social-links,
.section#contact.active+.social-links {
    opacity: 0;
    visibility: hidden;
}

/* Timeline Styles */
.timeline {
    position: relative;
    max-width: 800px;
    margin: auto auto;
    padding: 2rem 0;
}

/* Ana çizgi */
.timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--accent-color);
    top: 0;
    bottom: 0;
    left: 50px;
    opacity: 0.2;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 80px;
}

/* Nokta */
.timeline-dot {
    position: absolute;
    left: 44px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    transform: translateY(8px);
}

/* Hover efekti için pulse animasyonu */
.timeline-dot::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--accent-color);
    border-radius: 50%;
    opacity: 0.4;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.4;
    }

    70% {
        transform: scale(2);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 0;
    }
}

.timeline-date {
    position: absolute;
    left: 0;
    top: 8px;
    width: 40px;
    text-align: right;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-color);
}

.timeline-content {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.timeline-content h3 {
    color: var(--text-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.timeline-company {
    color: var(--accent-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.timeline-description {
    color: var(--text-color);
    font-size: 0.95rem;
    line-height: 1.6;
    opacity: 0.8;
}

/* About section düzenlemesi */
.about-container {
    display: grid;
    grid-template-columns: 50% 50% 40%;
    gap: 2rem;
    max-width: 1600px;
    margin: 0 auto;
    padding: 7%;
}

/* Timeline bölümü */
.about-left {
    width: 100%;
    padding-right: 1rem;
}

/* Yetkinlikler bölümü */
.skills-section {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    height: fit-content;
    position: sticky;
    top: 2rem;
}

/* Referanslar bölümü */
.references-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    height: fit-content;
    position: sticky;
    top: 2rem;
}

/* Responsive düzenlemeler */
@media (max-width: 1200px) {
    .about-container {
        grid-template-columns: 1fr 1fr 1fr;
        /* Eşit genişlikte üç kolon */
    }
}

@media (max-width: 992px) {
    .about-container {
        grid-template-columns: 1fr;
        /* Tek kolon */
    }

    .skills-section,
    .references-container {
        position: static;
        margin-top: 2rem;
    }
}

/* Yetkinlikler Bölümü Stilleri */
.about-right {
    position: sticky;
    top: 2rem;
    height: fit-content;
    width: 100%;
}

.skills-section {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.skills-title {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--light-gray);
}

.skill-group {
    margin-bottom: 2rem;
}

.skill-group:last-child {
    margin-bottom: 0;
}

.skill-group h4 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.skill-tag {
    background: var(--bg-color);
    color: var(--text-color);
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 1rem;
    border: 1px solid var(--light-gray);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Responsive düzenlemeler */
@media (max-width: 1200px) {
    .about-container {
        grid-template-columns: 1fr 500px;
    }
}

@media (max-width: 992px) {
    .about-container {
        grid-template-columns: 1fr 400px;
    }
}

@media (max-width: 768px) {
    .about-container {
        grid-template-columns: 1fr;
    }

    .about-right {
        position: static;
        margin-top: 2rem;
    }

    .skills-section {
        padding: 1.5rem;
    }
}

/* Sağ taraf - Referanslar için yeni stiller */
.references-container {
    margin-top: 2rem;
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.references-title {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--light-gray);
}

.references-grid {
    display: grid;
    gap: 1.5rem;
}

.reference-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--light-gray);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

/* Hover efekti için gradient arka plan */
.reference-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-color) 0%, rgba(var(--accent-color-rgb), 0.2) 100%);
    opacity: 0;
    z-index: -1;
    transition: all 0.4s ease;
}

.reference-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px rgba(var(--accent-color-rgb), 0.15);
}

.reference-card:hover::before {
    opacity: 0.1;
}

/* Metin efektleri */
.reference-card:hover .reference-info h4 {
    color: var(--accent-color);
    transform: translateY(-2px);
}

.reference-info h4 {
    transition: all 0.3s ease;
}

.reference-profession {
    color: var(--accent-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
}

/* Profession altı çizgi efekti */
.reference-profession::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.reference-card:hover .reference-profession::after {
    width: 100%;
}

/* İletişim bilgisi hover efekti */
.reference-contact {
    transition: all 0.3s ease;
    position: relative;
    padding-left: 0;
}

.reference-card:hover .reference-contact {
    color: var(--accent-color);
    padding-left: 5px;
}

/* Pozisyon metni efekti */
.reference-position {
    transition: all 0.3s ease;
    opacity: 0.8;
}

.reference-card:hover .reference-position {
    opacity: 1;
    color: var(--text-color);
}

/* Responsive düzenlemeler */
@media (max-width: 768px) {
    .reference-card {
        padding: 1.2rem;
    }
}

/* Hero Image Animation Styles */
.animation-container {
    width: 800px;
    height: 800px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.animated-circle {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 30px rgba(var(--accent-color-rgb), 0.3));
}

/* Arka plan */
.space-bg {
    fill: var(--bg-color);
    stroke: var(--accent-color);
    stroke-width: 0.5;
    opacity: 0.1;
}

/* Yörüngeler */
.orbit {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 0.5;
    opacity: 0.2;
    stroke-dasharray: 3 3;
    animation: rotateOrbit 20s linear infinite;
}

.orbit2 {
    animation-duration: 15s;
}

.orbit3 {
    animation-duration: 10s;
}

/* Gezegenler */
.planet {
    fill: var(--accent-color);
    filter: drop-shadow(0 0 5px var(--accent-color));
}

.planet1 {
    animation: movePlanet1 20s linear infinite;
}

.planet2 {
    animation: movePlanet2 15s linear infinite;
}

.planet3 {
    animation: movePlanet3 10s linear infinite;
}

/* Merkez gezegen */
.center-planet {
    fill: var(--primary-color);
    opacity: 0.8;
    animation: pulsePlanet 4s ease-in-out infinite;
}

.center-ring {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 1;
    opacity: 0.5;
    animation: rotateRing 10s linear infinite;
}

/* Yıldızlar */
.star {
    fill: var(--text-color);
    animation: twinkle 2s ease-in-out infinite;
}

.star2 {
    animation-delay: 0.3s;
}

.star3 {
    animation-delay: 0.6s;
}

.star4 {
    animation-delay: 0.9s;
}

.star5 {
    animation-delay: 1.2s;
}

.star6 {
    animation-delay: 1.5s;
}

/* Işın efektleri */
.beam {
    stroke: var(--accent-color);
    stroke-width: 0.5;
    opacity: 0;
    animation: beamPulse 3s ease-in-out infinite;
}

.beam2 {
    animation-delay: 1s;
}

.beam3 {
    animation-delay: 2s;
}

/* Data akışları */
.data-stream {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 0.5;
    stroke-dasharray: 5;
    opacity: 0.5;
    animation: dataFlow 3s linear infinite;
}

/* Animasyonlar */
@keyframes rotateOrbit {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes movePlanet1 {
    from {
        transform: rotate(0deg) translateX(80px) rotate(0deg);
    }

    to {
        transform: rotate(360deg) translateX(80px) rotate(-360deg);
    }
}

@keyframes movePlanet2 {
    from {
        transform: rotate(0deg) translateX(65px) rotate(0deg);
    }

    to {
        transform: rotate(360deg) translateX(65px) rotate(-360deg);
    }
}

@keyframes movePlanet3 {
    from {
        transform: rotate(0deg) translateX(50px) rotate(0deg);
    }

    to {
        transform: rotate(360deg) translateX(50px) rotate(-360deg);
    }
}

@keyframes pulsePlanet {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.8;
    }

    50% {
        transform: scale(1.1);
        opacity: 1;
    }
}

@keyframes rotateRing {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(-360deg);
    }
}

@keyframes twinkle {

    0%,
    100% {
        opacity: 0.2;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.5);
    }
}

@keyframes beamPulse {

    0%,
    100% {
        opacity: 0;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes dataFlow {
    from {
        stroke-dashoffset: 20;
    }

    to {
        stroke-dashoffset: 0;
    }
}

/* Responsive düzenleme */
@media (max-width: 1200px) {
    .animation-container {
        width: 600px;
        height: 600px;
    }
}

@media (max-width: 768px) {
    .animation-container {
        width: 400px;
        height: 400px;
    }
}

@media (max-width: 480px) {
    .animation-container {
        width: 300px;
        height: 300px;
    }
}

/* Yetkinlikler Bölümü Stilleri */
.skills-section {
    padding: 4rem 5%;
    background: var(--bg-color);
    margin-top: 2rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--text-color);
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.skill-category {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--light-gray);
}

.skill-header i {
    font-size: 1.8rem;
    color: var(--accent-color);
}

.skill-header h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin: 0;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tag {
    background: var(--bg-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--light-gray);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Responsive düzenlemeler */
@media (max-width: 768px) {
    .skills-section {
        padding: 3rem 1rem;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .skill-category {
        padding: 1.5rem;
    }
}

/* Hamburger menü stilleri */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobil menü stilleri */
@media (max-width: 768px) {
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background: var(--bg-color);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 20px;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 1000;
    }

    nav.active {
        right: 0;
    }

    nav a {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }

    .hamburger {
        display: flex;
    }
}

/* Mobil menü stilleri */
@media (max-width: 768px) {
    .header-right {
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .hamburger {
        display: flex;
    }

    .dark-mode-toggle {
        display: flex;
    }
}

/* Mobil tasarım için genel düzenlemeler */
@media (max-width: 768px) {

    /* Başlık ve metin boyutları */
    .pre-title {
        font-size: 1.8rem;
    }

    .name {
        font-size: 3rem;
    }

    .description {
        font-size: 1.1rem;
    }

    .learn-more {
        font-size: 1rem;
    }

    .timeline-content h3,
    .timeline-company,
    .timeline-description {
        font-size: 1rem;
    }

    .contact-card h3,
    .contact-card p {
        font-size: 1rem;
    }

    .portfolio-info h3,
    .portfolio-tech {
        font-size: 1.2rem;
    }

    /* Tüm bölümler için genel padding ve margin ayarları */
    .section {
        padding: 2rem 1rem;
        margin-bottom: 2rem;
    }

    /* İçeriklerin kesilmesini önlemek için overflow ayarları */
    .timeline-content,
    .contact-card,
    .portfolio-item {
        overflow: visible;
    }
}

/* Daha küçük ekranlar için (480px ve altı) */
@media (max-width: 480px) {
    .hero {
        padding-top: 200px;
        /* Daha küçük ekranlar için header boşluğu */
    }

    .section {
        padding: 1.5rem 1rem;
    }
}

/* Mobil tasarım için genel düzenlemeler */
@media (max-width: 768px) {

    /* Header ve içerik arasındaki boşluk */
    .hero {
        padding-top: 120px;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Tüm bölümler için genel padding ve margin ayarları */
    .section {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    /* İçeriklerin kesilmesini önlemek için overflow ayarları */
    .timeline-content,
    .contact-card,
    .portfolio-item {
        overflow: visible;
    }

    /* Logo boyutunu ayarlama */
    .logo img {
        width: 100px;
        height: auto;
    }
}

/* Daha küçük ekranlar için (480px ve altı) */
@media (max-width: 480px) {
    .hero {
        padding-top: 200px;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    .section {
        padding: 0.5rem;
    }

    .logo img {
        width: 80px;
        height: auto;
    }
}

.contact-section {
    background-color: white;
    padding: 80px 0;
    transition: background-color 0.3s ease;
}

[data-theme="dark"] .contact-section {
    background-color: var(--bg-color);
}

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

.contact-content {
    display: flex;
    gap: 260px;
    align-items: flex-start;
}

.contact-left {
    width: 620px;
    flex: 1;
}

.contact-left h2 {
    font-size: 42px;
    color: #1a1a1a;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 700;
}

.contact-left p {
    color: #666;
    margin-bottom: 30px;
}

.mail-link {
    display: flex;
    align-items: center;
    gap: 15px;
}

.mail-link img {
    width: 24px;
    height: 24px;
}

.mail-link a {
    color: #6c4bfd;
    text-decoration: none;
    font-weight: 500;
}

.contact-right {
    flex: 1;
}

.contact-right h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #1a1a1a;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid #e0e0e0;
    background-color: #fff;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .contact-form input,
[data-theme="dark"] .contact-form textarea {
    background-color: var(--card-bg);
    border-color: var(--primary-color);
    color: var(--text-color);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #6c4bfd;
    box-shadow: 0 0 0 3px rgba(108, 75, 253, 0.1);
}

[data-theme="dark"] .contact-form input:focus,
[data-theme="dark"] .contact-form textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(232, 90, 79, 0.1);
}


[data-theme="dark"] .contact-left h2 {

    color: white;
}

[data-theme="dark"] .contact-right h3 {

    color: white;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #999;
    font-weight: 500;
}

[data-theme="dark"] .contact-form input::placeholder,
[data-theme="dark"] .contact-form textarea::placeholder {
    color: #666;
}

.contact-form input:hover,
.contact-form textarea:hover {
    border-color: #6c4bfd;
    box-shadow: 0 2px 8px rgba(108, 75, 253, 0.1);
}

[data-theme="dark"] .contact-form input:hover,
[data-theme="dark"] .contact-form textarea:hover {
    border-color: var(--accent-color);
    box-shadow: 0 2px 8px rgba(232, 90, 79, 0.1);
}

.send-message-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    width: fit-content;
    transition: background-color 0.3s ease;
    box-shadow: 0 4px 6px rgba(108, 75, 253, 0.2);
}

.send-message-btn:hover {
    background-color: #6c4bfd;
    box-shadow: 0 6px 12px rgba(108, 75, 253, 0.3);
    transform: translateY(-2px);
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    .contact-content {
        flex-direction: column;
    }

    .contact-left h2 {
        font-size: 32px;
    }
}

/* Sosyal Medya Kartları Bölümü */
.social-cards-section {
    background-color: var(--bg-color);
    padding: 60px 0;
}

.social-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.social-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    border: 1px solid var(--light-gray);
}

[data-theme="dark"] .social-card {
    border-color: var(--primary-color);
}

.social-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-color);
}

[data-theme="dark"] .social-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.social-card i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.social-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.social-card p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive Tasarım */
@media (max-width: 992px) {
    .social-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .social-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .social-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Ana sayfa düzeni */
.home-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 500px;
    width: 100%;
}

.home-left {
    flex: 1;
}

.animation-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Responsive düzenleme */
@media (max-width: 992px) {
    .home-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .home-left {
        order: 1;
    }

    .animation-container {
        order: 2;
        margin-top: 2rem;
    }
}

/* Teknoloji Animasyonu Stilleri */
.tech-animation {
    width: 100%;
    height: 100%;
    max-width: 1000px;
}

.main-circle {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 2;
    opacity: 0.1;
}

.orbit {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 2;
    opacity: 0.2;
    stroke-dasharray: 3 3;
    animation: rotateOrbit 20s linear infinite;
}

.orbit2 {
    animation-duration: 15s;
}

.orbit3 {
    animation-duration: 10s;
}

.tech-icon circle {
    fill: var(--bg-color);
    stroke: var(--accent-color);
    stroke-width: 3;
}

.tech-icon text {
    fill: var(--accent-color);
    font-family: monospace;
    font-size: 16px;
    font-weight: bold;
}

.icon1 {
    animation: moveIcon 10s linear infinite;
}

.icon2 {
    animation: moveIcon 12s linear infinite reverse;
}

.icon3 {
    animation: moveIcon 8s linear infinite;
}

.connection-line {
    stroke: var(--accent-color);
    stroke-width: 2;
    opacity: 0.3;
    stroke-dasharray: 5;
    animation: dash 20s linear infinite;
}

.data-flow {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 2;
    stroke-dasharray: 10;
    opacity: 0;
    animation: flowData 4s linear infinite;
}

.binary {
    font-family: monospace;
    font-size: 18px;
    fill: var(--accent-color);
    opacity: 0;
    animation: fadeInOut 3s infinite;
}

.center-point {
    fill: var(--accent-color);
    transform-origin: center;
    transform: scale(1.5);
    animation: pulse 2s ease-in-out infinite;
}

.pulse-ring {
    fill: none;
    stroke: var(--accent-color);
    stroke-width: 3;
    opacity: 0;
    transform-origin: center;
    transform: scale(1.5);
    animation: pulseRing 2s ease-out infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes moveIcon {
    0% {
        transform: rotate(0deg) translateX(140px) rotate(0deg);
    }

    100% {
        transform: rotate(360deg) translateX(140px) rotate(-360deg);
    }
}

@keyframes dash {
    to {
        stroke-dashoffset: -100;
    }
}

@keyframes flowData {
    0% {
        stroke-dashoffset: 100;
        opacity: 0;
    }

    20% {
        opacity: 0.5;
    }

    80% {
        opacity: 0.5;
    }

    100% {
        stroke-dashoffset: -100;
        opacity: 0;
    }
}

@keyframes fadeInOut {

    0%,
    100% {
        opacity: 0;
    }

    50% {
        opacity: 0.7;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes pulseRing {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}