/* 
* Yusuf Akın - Portfolio
* Dark Theme Portfolio Stylesheet
*/

/* ===== VARIABLES ===== */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-accent: #64748b;
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --success-color: #22c55e;
    --danger-color: #ef4444;
    --border-color: rgba(148, 163, 184, 0.2);
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 70px;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

button {
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
}

/* ===== UTILITIES ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.gradient-text {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
}

.section-padding {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header .underline {
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: 0 auto 15px;
    border-radius: 3px;
}

.section-header .section-desc {
    max-width: 600px;
    margin: 0 auto;
    color: var(--text-secondary);
}

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

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    transition: var(--transition);
    padding: 15px 0;
}

header.scrolled {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    padding: 10px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

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

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-link {
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.hero-text {
    flex: 1;
    max-width: 600px;
    animation: fadeIn 1s ease-out;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

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

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-image {
    flex: 1;
    max-width: 400px;
    position: relative;
    margin-left: 40px;
}

.profile-img {
    width: 300px;
    height: 300px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
    border: 3px solid rgba(255, 255, 255, 0.1);
}

.profile-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: var(--transition);
}

.blur-effect {
    filter: blur(1px) brightness(0.95);
}

.profile-img:hover .blur-effect {
    filter: blur(0) brightness(1);
}

.profile-img .text {
    font-size: 5rem;
    font-weight: 800;
    color: var(--text-primary);
    opacity: 0.8;
    letter-spacing: 2px;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    backdrop-filter: blur(5px);
}

.floating-element:nth-child(2) {
    width: 70px;
    height: 70px;
    top: 20%;
    right: 10%;
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(3) {
    width: 50px;
    height: 50px;
    bottom: 20%;
    left: 10%;
    animation: float 5s ease-in-out infinite 1s;
}

.floating-element:nth-child(4) {
    width: 40px;
    height: 40px;
    top: 60%;
    right: 20%;
    animation: float 7s ease-in-out infinite 0.5s;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 90% 10%, rgba(59, 130, 246, 0.05), transparent 40%),
                radial-gradient(circle at 10% 90%, rgba(139, 92, 246, 0.05), transparent 40%);
}

/* ===== ABOUT SECTION ===== */
.about-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    transition: none !important;
}

.about-image {
    flex: 1;
    max-width: 400px;
    position: relative;
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    transition: none !important;
}

.about-img-container {
    width: 300px;
    height: 300px;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto;
    background: linear-gradient(to bottom right, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.about-initials {
    font-size: 64px;
    font-weight: 700;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.box-decoration {
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 10px;
    z-index: 0;
}

.top-left {
    top: -20px;
    left: -20px;
    border: 2px solid var(--primary-color);
}

.bottom-right {
    bottom: -20px;
    right: -20px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    opacity: 0.2;
}

.about-text {
    flex: 1;
    max-width: 600px;
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    transition: none !important;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.about-card {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.about-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.about-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ===== SKILLS SECTION ===== */
.skills-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
}

.skill-filter {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 50px;
    font-weight: 500;
    transition: var(--transition);
}

.skill-filter:hover, .skill-filter.active {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.skill-filter.active {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.skill-card {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.skill-icon {
    font-size: 2rem;
    margin-bottom: 15px;
}

.skill-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.skill-bar {
    height: 10px;
    background-color: var(--bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 1s ease-in-out;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== PROJECTS SECTION ===== */
.projects-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.project-img {
    height: 200px;
    background: linear-gradient(to right, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-cover-img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: none;
}

.project-card:hover .project-cover-img {
    transform: none;
}

.project-initials {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
}

.project-content {
    padding: 25px;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-tags span {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
}

.project-links {
    display: flex;
    justify-content: space-between;
}

.project-link {
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.project-link.demo {
    color: var(--primary-color);
}

.project-link.github {
    color: var(--text-secondary);
}

.project-link:hover {
    transform: translateY(-2px);
}

.project-more {
    text-align: center;
    margin-top: 50px;
}

/* ===== CONTACT SECTION ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
}

.contact-info, .contact-form {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.contact-info h3, .contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    margin-bottom: 30px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    color: var(--primary-color);
}

.contact-details h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.contact-details a {
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

.social-link {
    width: 40px;
    height: 40px;
    background-color: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
}

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

.form-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--success-color);
    padding: 20px;
    border-radius: 5px;
    text-align: center;
    border: 1px solid rgba(34, 197, 94, 0.2);
    display: none;
}

.form-success i {
    font-size: 2rem;
    margin-bottom: 10px;
}

/* ===== FOOTER ===== */
footer {
    background-color: var(--bg-secondary);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

.footer-logo a {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-logo a span {
    color: var(--primary-color);
}

.footer-text {
    color: var(--text-secondary);
}

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

.social-icon {
    width: 36px;
    height: 36px;
    background-color: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--text-secondary);
}

.social-icon:hover {
    background-color: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-3px);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ===== MEDIA QUERIES ===== */
@media screen and (max-width: 992px) {
    .section-padding {
        padding: 80px 0;
    }
    
    .hero-content {
        flex-direction: column;
    }
    
    .hero-text {
        text-align: center;
        margin-bottom: 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        margin-left: 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        margin-bottom: 0;
    }
}

@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--bg-secondary);
        box-shadow: var(--shadow);
        padding: 20px 0;
        flex-direction: column;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu li {
        margin: 10px 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .about-content, .contact-content {
        flex-direction: column;
        gap: 50px;
    }
    
    .about-image, .about-text, .contact-info, .contact-form {
        width: 100%;
    }
    
    .about-text {
        padding-left: 0;
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .project-filter {
        gap: 10px;
        margin-bottom: 30px;
    }
    
    .filter-btn {
        padding: 6px 15px;
        font-size: 0.8rem;
    }
}

@media screen and (max-width: 576px) {
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .skills-container, .projects-container {
        grid-template-columns: 1fr;
    }
    
    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .contact-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .all-projects {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .project-filter {
        gap: 8px;
        margin-bottom: 25px;
    }
    
    .filter-btn {
        padding: 5px 12px;
        font-size: 0.75rem;
    }
}

/* Projects Styles - Updated */
.all-projects {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.project-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

#about {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
}

/* Ensure About section is always visible */
#about, 
#about *, 
.about-content, 
.about-content *,
.about-image, 
.about-text {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    transition: none !important;
}

.about-content {
    display: flex !important;
}

/* Override any javascript behavior that might hide sections */
section {
    display: block !important;
    visibility: visible !important;
}