/* CSS Variables for Premium Dark Mode */
:root {
    --bg-color: #0d0015; /* Siyah-Eflatun Karışımı Çok Koyu Arka Plan */
    --bg-secondary: rgba(22, 10, 30, 0.4);
    --text-primary: #f8f0fc;
    --text-secondary: #c2b5cb;
    
    /* Neon Accents - Eflatun */
    --accent-color: #b873f0;
    --accent-glow: rgba(184, 115, 240, 0.4);
    --accent-alt: #f0a2ff;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(184, 115, 240, 0.15);
    --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --trans-fast: 0.2s ease;
    --trans-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Animated Blobs */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    animation: move 20s infinite alternate;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(184, 115, 240, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    top: -10%;
    left: -10%;
}

.blob-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(240, 162, 255, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: 20%;
    right: -15%;
    animation-delay: -5s;
}

@keyframes move {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Selection */
::selection {
    background: var(--accent-color);
    color: #000;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* Glass Card Utility */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    padding: 2rem;
    transition: var(--trans-normal);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.05), transparent);
    transform: skewX(-25deg);
    transition: 0.5s;
}

.glass-card:hover::before {
    left: 150%;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(184, 115, 240, 0.3);
    box-shadow: 0 10px 40px rgba(184, 115, 240, 0.15);
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
}

.highlight {
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--accent-glow);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--trans-fast);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-primary-sm {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--trans-normal);
    text-align: center;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-alt));
    color: #fff;
    border: none;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    box-shadow: 0 6px 25px var(--accent-glow);
    transform: translateY(-2px);
    filter: brightness(1.1);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--accent-color);
}

.btn-secondary:hover {
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.btn-primary-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
    background: rgba(184, 115, 240, 0.1);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.btn-primary-sm:hover {
    background: var(--accent-color);
    color: #000;
    box-shadow: 0 0 15px var(--accent-glow);
}

.btn-text {
    color: var(--accent-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-text:hover {
    gap: 12px;
    text-shadow: 0 0 8px var(--accent-glow);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 5%;
    transition: var(--trans-normal);
}

.navbar.scrolled {
    padding: 1rem 5%;
    background: rgba(13, 15, 18, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    font-family: var(--font-heading);
    letter-spacing: 1px;
}

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

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

.nav-links li a:not(.btn-primary-sm) {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

.nav-links li a:not(.btn-primary-sm):hover {
    color: var(--text-primary);
}

.nav-links li a:not(.btn-primary-sm)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-color);
    transition: var(--trans-normal);
}

.nav-links li a:not(.btn-primary-sm):hover::after {
    width: 100%;
}

/* Sections General */
.section {
    padding: 100px 5%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 4rem;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.line {
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Animations Trigger Classes */
.reveal, .reveal-up, .reveal-right {
    opacity: 0;
    transition: all 0.8s ease-out;
}

.reveal-up { transform: translateY(50px); }
.reveal-right { transform: translateX(50px); }

.reveal.active, .reveal-up.active, .reveal-right.active {
    opacity: 1;
    transform: translate(0, 0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }


/* Hero Section */
.hero-container {
    display: flex;
    flex-direction: row-reverse; /* Put image on the left, text on right */
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    padding-top: 60px;
}

.hero-content {
    flex: 1;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(184, 115, 240, 0.1);
    border: 1px solid rgba(184, 115, 240, 0.5);
    color: #f0a2ff;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.typing-text {
    color: var(--text-primary);
    border-right: 2px solid var(--accent-color);
    animation: blink 0.75s step-end infinite;
}

@keyframes blink {
    50% { border-color: transparent; }
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.social-links a:hover {
    background: var(--accent-color);
    color: #000;
    transform: translateY(-5px);
    box-shadow: 0 5px 15px var(--accent-glow);
    border-color: transparent;
}

.hero-image-container {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

.image-card {
    padding: 10px;
    border-radius: 50%;
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid transparent;
}

/* About Section */
.about-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-card {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
}

.stat-item h3 {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 15px var(--accent-glow);
}

.stat-item span {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Experience Section */
.timeline {
    position: relative;
    padding-left: 2rem;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: -2px;
    height: 0;
    width: 2px;
    background: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-glow);
    transition: height 1s ease;
}

.experience.active .timeline::before {
    height: 100%;
}

.timeline-item {
    margin-bottom: 2rem;
    position: relative;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--bg-color);
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    left: -37px;
    top: 20px;
    box-shadow: 0 0 10px var(--accent-glow);
    z-index: 2;
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 0.2rem;
}

.timeline-company {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 400;
}

.timeline-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.skill-category h3 i {
    color: var(--accent-color);
}

.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-alt));
    border-radius: 4px;
    box-shadow: 0 0 10px var(--accent-glow);
    position: relative;
    width: 0; /* Animated via JS or static inline style */
}

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

.skill-tags span {
    background: rgba(184, 115, 240, 0.05);
    border: 1px solid rgba(184, 115, 240, 0.1);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--trans-fast);
}

.skill-tags span:hover {
    background: rgba(184, 115, 240, 0.15);
    border-color: var(--accent-color);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.project-card {
    padding: 0;
    display: flex;
    flex-direction: column;
}

.project-img-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #1a1a2e, #16213e);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.3);
    font-size: 1.2rem;
    font-family: var(--font-heading);
    transition: var(--trans-normal);
}

.project-card:hover .project-placeholder {
    transform: scale(1.05);
}

.project-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tags span {
    font-size: 0.8rem;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    color: var(--text-secondary);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.icon-box {
    width: 50px;
    height: 50px;
    background: rgba(184, 115, 240, 0.1);
    color: var(--accent-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.contact-item p {
    margin-bottom: 0;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--trans-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(184, 115, 240, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

/* Footer */
footer {
    padding: 2rem 5%;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-container {
        flex-direction: column-reverse;
        text-align: center;
    }
    .hero-desc {
        margin: 0 auto 2rem;
    }
    .hero-actions {
        justify-content: center;
    }
    .social-links {
        justify-content: center;
    }
    .contact-content {
        grid-template-columns: 1fr;
    }
    .nav-links {
        display: none; /* In a real app, implement hamburger menu */
    }
    .hero-title {
        font-size: 3.5rem;
    }
}

@media (max-width: 576px) {
    .section {
        padding: 80px 20px;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-subtitle {
        font-size: 1.5rem;
    }
    .image-card {
        width: 300px;
        height: 300px;
    }
    .stats-container {
        grid-template-columns: 1fr;
    }
}