/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Gece Mavisi (Midnight Blue) Renk Paleti */
    --bg-color: #0b132b;
    --bg-secondary: #1c2541;
    --primary-color: #5bc0be;
    --text-main: #ffffff;
    --text-muted: #a0aab2;
    --glass-bg: rgba(28, 37, 65, 0.4);
    --glass-border: rgba(91, 192, 190, 0.2);
}

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
}

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

/* Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: radial-gradient(circle at 15% 50%, rgba(28, 37, 65, 0.8), transparent 50%),
                radial-gradient(circle at 85% 30%, rgba(58, 80, 107, 0.5), transparent 50%);
    filter: blur(80px);
    animation: bgPulse 15s ease-in-out infinite alternate;
}

@keyframes bgPulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

/* Glassmorphism Utility */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Typography & General */
h1, h2, h3 {
    font-weight: 800;
    margin-bottom: 1rem;
}

.highlight {
    color: var(--primary-color);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.hero-content:hover .highlight::after {
    transform: scaleX(1);
    transform-origin: left;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
}

.btn:hover {
    background: var(--primary-color);
    color: var(--bg-color);
    box-shadow: 0 0 15px var(--primary-color);
    transform: translateY(-2px);
}

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

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(11, 19, 43, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -1px;
}

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

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

/* Sections Common */
section {
    min-height: 100vh;
    padding: 6rem 5% 2rem;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Hero Section */
.hero {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.glass-shape {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(91, 192, 190, 0.2), rgba(28, 37, 65, 0.4));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: morph 8s ease-in-out infinite;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

@keyframes morph {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    25% { border-radius: 58% 42% 75% 25% / 76% 46% 54% 24%; }
    50% { border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%; }
    75% { border-radius: 33% 67% 58% 42% / 63% 68% 32% 37%; }
    100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
}

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

.about-card {
    padding: 2rem;
    transition: transform 0.3s ease;
}

.about-card:hover {
    transform: translateY(-5px);
}

.skills-list {
    list-style: none;
    margin-top: 1rem;
}

.skills-list li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
}

.skills-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

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

.project-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-image {
    height: 200px;
    width: 100%;
}

.project-info {
    padding: 1.5rem;
}

.project-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* Contact Section */
.contact {
    align-items: center;
}

.contact-box {
    width: 100%;
    max-width: 600px;
    padding: 3rem;
    text-align: center;
}

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

.input-group {
    margin-bottom: 1.5rem;
}

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

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    border-top: 1px solid var(--glass-border);
    margin-top: 2rem;
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-image {
        margin-top: 3rem;
    }
    
    .nav-links {
        display: none; /* Basitlik için mobilde gizlendi, hamburger eklenebilir */
    }
}