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

:root {
    --primary-color: #00d4ff;
    --secondary-color: #ff6b35;
    --background: #0a0e27;
    --surface: #151a33;
    --text-primary: #e8eef7;
    --text-secondary: #a0aec0;
    --border-color: #2d3748;
    --accent: #00d4ff;
    --success: #10b981;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--background) 0%, #1a1f3a 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    padding: 1rem 0;
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    color: var(--primary-color);
}

.logo {
    font-size: 1.5rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.brand-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
    font-weight: 500;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 150px 0 100px;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: fadeInLeft 0.8s ease-out;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
}

.word {
    display: block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #00a8cc);
    color: var(--background);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--background);
    transform: translateY(-3px);
}

.hero-animation {
    position: relative;
    height: 400px;
    animation: fadeInRight 0.8s ease-out;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.signal-line {
    position: absolute;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: slideWave 2s ease-in-out infinite;
}

@keyframes slideWave {
    0% {
        transform: scaleX(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: scaleX(1);
        opacity: 0;
    }
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 60px;
    text-align: center;
    position: relative;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

section {
    padding: 80px 0;
}

/* About Section */
.about {
    background: rgba(0, 212, 255, 0.02);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 30px;
}

.skill-tag {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.stat {
    text-align: center;
    padding: 20px;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.stat:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.4);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Experience/Timeline */
.experience {
    background: rgba(255, 107, 53, 0.02);
    border-top: 1px solid rgba(255, 107, 53, 0.1);
}

.education{
	background: rgba(255, 107, 53, 0.02);
    border-top: 1px solid rgba(255, 107, 53, 0.1);
}

.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color), transparent);
}

.timeline-item {
    margin-bottom: 50px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    position: relative;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 1 / 2;
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 2 / 3;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 4px solid var(--background);
    border-radius: 50%;
    z-index: 10;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(0, 212, 255, 0);
    }
}

.timeline-content {
    padding: 20px;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.timeline-content:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-5px);
}

.timeline-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.company {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.description {
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-tags span {
    background: rgba(255, 107, 53, 0.2);
    color: var(--secondary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.project-card {
    background: rgba(0, 212, 255, 0.05);
    border: 2px solid rgba(0, 212, 255, 0.2);
    padding: 30px;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.project-card:hover::before {
    left: 100%;
}

.project-card:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-10px);
}

.project-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.project-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Sertifikalar Bölümü - Temaya Uygun */
.certificates {
    padding: 80px 0;
    background: rgba(0, 212, 255, 0.02); /* Diğer bölümlerle aynı hafif arka plan */
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.certificate-card {
    background: rgba(0, 212, 255, 0.05); /* Proje kartlarıyla aynı şeffaf koyu zemin */
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-left: 4px solid var(--primary-color); /* Sol şerit rengi neon mavi */
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
    box-shadow: none; /* Varsayılan gölgeyi kaldırdık */
}

.certificate-card-1 {
    background: rgba(255, 215, 0, 0.05); 
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-left: 4px solid #FFD700; /* Sol şerit parlak altın */
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: all 0.3s ease;
    box-shadow: none;
}

.certificate-card:hover {
    background: rgba(0, 212, 255, 0.1); /* Hoverda biraz daha aydınlık */
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.15); /* Hafif neon parlama efekti */
    border-color: rgba(0, 212, 255, 0.4);
}

.cert-icon {
    font-size: 2rem;
    background: rgba(0, 212, 255, 0.1); /* İkon arka planı */
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: var(--text-primary);
}

.cert-content h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--primary-color); /* Başlık rengi ana tema mavisi */
}

.cert-issuer {
    font-size: 0.9rem;
    color: var(--secondary-color); /* Kurum ismi turuncu (secondary) */
    font-weight: 600;
    margin-bottom: 2px;
}

.cert-date {
    font-size: 0.85rem;
    color: var(--text-secondary); /* Tarih rengi gri */
    font-weight: 500;
}






.project-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tech span {
    background: rgba(255, 107, 53, 0.2);
    color: var(--secondary-color);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
}

/* Contact Section */
.contact {
    background: rgba(0, 212, 255, 0.02);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.contact-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

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

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 20px;
    background: rgba(0, 212, 255, 0.05);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateX(10px);
}

.contact-icon {
    font-size: 1.8rem;
    min-width: 30px;
}

.contact-item h4 {
    color: var(--primary-color);
    margin-bottom: 5px;
}

.contact-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

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

.form-group {
    display: flex;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 20px;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.4);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    padding: 30px 0;
    text-align: center;
    color: var(--text-secondary);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .timeline::before {
        display: none;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .timeline-item:nth-child(even) .timeline-content,
    .timeline-item:nth-child(odd) .timeline-content {
        grid-column: 1 / 2;
    }

    .timeline-dot {
        position: relative;
        left: 0;
        transform: none;
        margin-bottom: 15px;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        padding: 40px 0;
    }

    .hero-animation {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 40px;
    }

    .contact-content {
        gap: 30px;
    }
	
	
}