/* ===================================
   Modern Portfolio CSS
   Light Mode with Glassmorphism
   =================================== */

/* === CSS Variables === */
:root {
    /* Colors - Light Mode Palette */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --accent-primary: #5f27cd;
    --accent-secondary: #00d2d3;
    --accent-gradient: linear-gradient(135deg, #5f27cd 0%, #00d2d3 100%);

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.9);
    --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height: 1.6;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

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

/* === Typography === */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-normal);
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-normal);
}

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

.nav-brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width var(--transition-normal);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all var(--transition-normal);
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--accent-primary);
}

.hero-badge i {
    font-size: 1rem;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    max-width: 600px;
    margin-bottom: var(--spacing-md);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(95, 39, 205, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(95, 39, 205, 0.4);
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* === Floating Shapes === */
.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--accent-primary);
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--accent-secondary);
    bottom: 20%;
    left: 5%;
    animation-delay: 5s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: var(--accent-primary);
    top: 50%;
    right: 30%;
    animation-delay: 10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(20px, -20px) rotate(90deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(180deg);
    }

    75% {
        transform: translate(20px, 20px) rotate(270deg);
    }
}

/* === Section Styles === */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* === Glass Card === */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(31, 38, 135, 0.2);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
    color: white;
}

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

.bio-card h3,
.timeline-card h3 {
    margin-bottom: var(--spacing-md);
}

.interest-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    align-items: flex-start;
}

.interest-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-top: 0.25rem;
}

.interest-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
}

.interest-item p {
    font-size: 0.9375rem;
    margin: 0;
}

/* === Timeline === */
.timeline {
    position: relative;
    padding-left: 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    /* Fixed axis */
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-gradient);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-md);
    padding-left: 50px;
    /* Clear spacing from the line */
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 15px;
    /* Match the line's fixed axis */
    top: 5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-primary);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 10px var(--accent-primary);
    /* Glow effect */
    transform: translateX(-50%);
    /* Perfectly center on the axis */
    z-index: 1;
    transition: all var(--transition-normal);
}

.timeline-item:hover .timeline-dot {
    background: var(--accent-secondary);
    box-shadow: 0 0 15px var(--accent-secondary);
    transform: translateX(-50%) scale(1.2);
}

.timeline-date {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--accent-gradient);
    color: white;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-content h4 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.timeline-institution {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.timeline-detail {
    font-size: 0.9375rem;
}

/* === Projects Section - Bento Grid === */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
    grid-auto-rows: min-content;
}

.project-card {
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card.featured {
    grid-column: span 2;
}

.project-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
    color: white;
}

.project-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.project-card p {
    flex-grow: 1;
    font-size: 0.9375rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.tag {
    padding: 0.375rem 0.75rem;
    background: rgba(95, 39, 205, 0.1);
    color: var(--accent-primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.project-link {
    margin-top: var(--spacing-sm);
}

.link-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.9375rem;
}

.link-btn:hover {
    gap: var(--spacing-sm);
}

.link-btn i {
    transition: transform var(--transition-normal);
}

.link-btn:hover i {
    transform: translateX(5px);
}


/* === Project Lists === */
.project-list {
    list-style: none;
    margin-top: var(--spacing-sm);
    flex-grow: 1;
}

.project-list li {
    margin-bottom: 0.5rem;
}

.project-list li:last-child {
    margin-bottom: 0;
}

.project-list-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.5);
    transition: all var(--transition-normal);
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.4;
}

.project-list-item i {
    font-size: 0.8rem;
    color: var(--accent-secondary);
    transition: transform var(--transition-normal);
}

.project-list-item:hover {
    background: white;
    transform: translateX(5px);
    color: var(--accent-primary);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.project-list-item:hover i {
    transform: translateX(3px);
    color: var(--accent-primary);
}

/* === Blog Section === */
.blog-list {
    display: grid;
    gap: var(--spacing-md);
}

.blog-item {
    padding: var(--spacing-md);
}

.blog-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.blog-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.blog-category {
    padding: 0.25rem 0.75rem;
    background: var(--accent-gradient);
    color: white;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.blog-item h3 {
    margin-bottom: var(--spacing-sm);
}

.blog-item p {
    margin-bottom: var(--spacing-sm);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-primary);
    font-weight: 600;
}

.read-more:hover {
    gap: var(--spacing-sm);
}

.read-more i {
    transition: transform var(--transition-normal);
}

.read-more:hover i {
    transform: translateX(5px);
}


/* === Split Section Layout === */
.split-grid {
    display: grid;
    grid-template-columns: 1fr 1px 1fr;
    /* Left, Line, Right */
    gap: var(--spacing-lg);
    align-items: start;
}

.vertical-divider {
    width: 1px;
    height: 100%;
    background: var(--glass-border);
    opacity: 0.5;
}

.column-header {
    margin-bottom: var(--spacing-md);
}

.column-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.column-header p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Compact Blog Items for Split View */
.split-column .blog-item {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.split-column .blog-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.split-column .blog-item p {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    /* Limit to 2 lines */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.split-column .blog-meta {
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
}

.split-column .read-more {
    font-size: 0.8rem;
}

/* === Movie Recommendations === */
.movie-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-sm);
}

.movie-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
}

.movie-poster {
    width: 100%;
    aspect-ratio: 2/3;
    background-color: #ddd;
    background-size: cover;
    background-position: center;
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    position: relative;
    /* Removed fixed height to allow scaling */
}

.movie-poster::before {
    content: 'Film Afişi';
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #888;
    font-size: 0.9rem;
}

.movie-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.movie-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xs);
}

.movie-title {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.movie-year {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.movie-meta {
    display: flex;
    gap: 0.35rem;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
}

.meta-tag {
    font-size: 0.7rem;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.05);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

.imdb-badge {
    background: #f5c518;
    color: black;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.movie-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
    flex-grow: 1;
}

.movie-category-section {
    margin-bottom: var(--spacing-xl);
}

.category-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-left: 20px;
}

.category-title::before {
    content: ">";
    color: var(--accent-primary);
    position: absolute;
    left: 0;
    font-weight: 800;
}

/* Hide filters if present */
.filter-container {
    display: none !important;
}

/* === Footer === */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    /* Increased gap for better separation */
    align-items: start;
    /* Align to top */
}

.footer-form {
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    height: 100%;
    /* Match height visual if needed, but usually auto is better */
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.footer-form h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    color: var(--accent-secondary);
    /* Highlight title */
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.footer-form input,
.footer-form textarea {
    width: 100%;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: white;
    font-family: var(--font-family);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}

.footer-form input::placeholder,
.footer-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.footer-form input:focus,
.footer-form textarea:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-secondary);
}

.footer-form button {
    width: 100%;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.footer-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: #555;
    /* Neutral disabled color */
    box-shadow: none;
    transform: none;
}

.footer-main h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.footer-main p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.125rem;
}

.contact-item i {
    color: var(--accent-secondary);
    font-size: 1.25rem;
}

.contact-item a {
    color: white;
}

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

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--accent-gradient);
    transform: translateY(-3px);
}

.footer-bottom {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0.5rem;
}

.footer-tagline {
    font-size: 0.875rem;
}

/* === Responsive Design === */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--glass-bg);
        backdrop-filter: blur(10px);
        width: 100%;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--glass-border);
        transition: left var(--transition-normal);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding: calc(var(--spacing-xl) + 70px) 0 var(--spacing-lg);
    }

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

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

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

    .vertical-divider {
        display: none;
    }

    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .project-card.featured {
        grid-column: span 1;
    }

    .shape {
        opacity: 0.05;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* === Animations === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* === Utility Classes === */
.text-center {
    text-align: center;
}

.mt-1 {
    margin-top: var(--spacing-sm);
}

.mt-2 {
    margin-top: var(--spacing-md);
}

.mt-3 {
    margin-top: var(--spacing-lg);
}

.mb-1 {
    margin-bottom: var(--spacing-sm);
}

.mb-2 {
    margin-bottom: var(--spacing-md);
}

.mb-3 {
    margin-bottom: var(--spacing-lg);
}