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

:root {
    --primary-color: #6366f1;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --secondary-color: #ec4899;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-light: #f9fafb;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius: 12px;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: var(--transition);
    scroll-behavior: smooth;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Styles */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary-gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.logo h1 {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
}

.logo span {
    display: none;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 8px;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 10px 16px;
    border-radius: 8px;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-color);
    background-color: rgba(99, 102, 241, 0.1);
}

nav ul li a::after {
    display: none;
}

.theme-toggle button {
    background: var(--bg-light);
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle button:hover {
    background: var(--primary-color);
    color: white;
    transform: rotate(15deg);
}

.mobile-menu-btn {
    display: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-light);
    border: none;
    font-size: 24px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, #f6f7ff 0%, #f0f3ff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
    padding-right: 40px;
}

.hero-text h2 {
    font-size: 52px;
    margin-bottom: 16px;
    font-weight: 800;
    line-height: 1.2;
}

.hero-text h3 {
    font-size: 24px;
    color: var(--text-light);
    margin-bottom: 24px;
    font-weight: 500;
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 32px;
    color: var(--text-light);
    max-width: 600px;
}

.highlight {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 800;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    display: inline-flex;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

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

.hero-image {
    flex: 1;
    text-align: center;
    position: relative;
}

.hero-image img {
    max-width: 100%;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    border: 8px solid white;
    box-shadow: var(--shadow-hover);
    animation: morphing 10s ease-in-out infinite;
}

@keyframes morphing {
    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%; }
}

/* Services Section */
.services {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    position: relative;
    font-weight: 800;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.service-card {
    background-color: var(--card-bg);
    padding: 40px 32px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-gradient);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 32px;
    color: white;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    font-weight: 700;
}

.service-card p {
    color: var(--text-light);
}

/* Projects Section */
.featured-projects {
    padding: 100px 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 50px;
}

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

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.project-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.project-info {
    padding: 24px;
}

.project-info h3 {
    margin-bottom: 12px;
    font-weight: 700;
}

.project-info p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.project-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.project-info a:hover {
    color: #4f46e5;
    gap: 12px;
}

.center-button {
    text-align: center;
}

/* Page Header */
.page-header {
    padding: 160px 0 60px;
    text-align: center;
    background: linear-gradient(135deg, #f6f7ff 0%, #f0f3ff 100%);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -80px;
    left: -80px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    z-index: 0;
}

.page-header h1 {
    font-size: 48px;
    margin-bottom: 16px;
    font-weight: 800;
    position: relative;
    z-index: 1;
}

.page-header p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* About Section */
.about-content {
    padding: 80px 0;
}

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

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: var(--radius);
    z-index: -1;
    opacity: 0.3;
}

.about-text h2 {
    font-size: 36px;
    margin-bottom: 24px;
    font-weight: 800;
}

.about-text p {
    margin-bottom: 24px;
    color: var(--text-light);
    line-height: 1.8;
}

.personal-info {
    margin: 32px 0;
}

.info-item {
    display: flex;
    margin-bottom: 16px;
    align-items: center;
}

.info-item strong {
    min-width: 120px;
    margin-right: 20px;
    font-weight: 600;
}

/* Experience Section */
.experience {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background: var(--primary-gradient);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
    border-radius: 3px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-content {
    padding: 24px;
    background-color: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary-gradient);
    border-radius: 50%;
    top: 24px;
    right: -10px;
    z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: auto;
    left: -10px;
}

.timeline-date {
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 12px;
    display: inline-block;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 20px;
}

.timeline-content h3 {
    margin-bottom: 8px;
    font-weight: 700;
}

.timeline-content span {
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 12px;
    display: inline-block;
}

/* Skills Section */
.skills-content {
    padding: 80px 0;
}

.skills-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.skills-intro h2 {
    margin-bottom: 24px;
    font-weight: 800;
}

.skills-category {
    margin-bottom: 50px;
}

.skills-category h3 {
    margin-bottom: 24px;
    font-size: 24px;
    color: var(--primary-color);
    font-weight: 700;
}

.skills-grid {
    display: grid;
    gap: 24px;
}

.skill-item {
    margin-bottom: 20px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    align-items: center;
}

.skill-info span {
    font-weight: 600;
}

.skill-bar {
    height: 10px;
    background-color: #e5e7eb;
    border-radius: 5px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 5px;
    width: 0;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-image: linear-gradient(
        -45deg,
        rgba(255, 255, 255, 0.2) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.2) 75%,
        transparent 75%,
        transparent
    );
    z-index: 1;
    background-size: 10px 10px;
    animation: move 1s linear infinite;
    border-radius: 5px;
}

@keyframes move {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 10px 0;
    }
}

.other-skills {
    margin-top: 60px;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-tag {
    padding: 10px 20px;
    background-color: var(--bg-light);
    border-radius: 30px;
    font-size: 14px;
    color: var(--text-light);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.skill-tag:hover {
    background: var(--primary-gradient);
    color: white;
    transform: translateY(-2px);
}

/* Projects Page */
.projects-content {
    padding: 80px 0;
}

.projects-filter {
    display: flex;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
    gap: 12px;
}

.filter-btn {
    padding: 10px 24px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 32px;
}

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

.project-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-item:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(99, 102, 241, 0.9), rgba(139, 92, 246, 0.8));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.project-item:hover .project-overlay {
    opacity: 1;
}

.project-link,
.project-github {
    color: white;
    font-size: 20px;
    margin: 0 8px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    text-decoration: none;
}

.project-link:hover,
.project-github:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.project-details {
    padding: 24px;
}

.project-details h3 {
    margin-bottom: 12px;
    font-weight: 700;
}

.project-details p {
    color: var(--text-light);
    margin-bottom: 20px;
}

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

.project-tech span {
    padding: 6px 12px;
    background-color: var(--bg-light);
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

/* Contact Section */
.contact-content {
    padding: 80px 0;
}

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

.contact-info h2 {
    margin-bottom: 24px;
    font-weight: 800;
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 24px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    flex-shrink: 0;
    font-size: 20px;
}

.contact-text h4 {
    margin-bottom: 8px;
    font-weight: 700;
}

.contact-text p {
    margin: 0;
    color: var(--text-light);
}

.contact-form h2 {
    margin-bottom: 24px;
    font-weight: 800;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Footer */
footer {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    color: white;
    padding: 80px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 48px;
}

.footer-section h3 {
    margin-bottom: 24px;
    font-size: 20px;
    font-weight: 700;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 24px;
    line-height: 1.7;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-section ul li a:hover {
    color: white;
    gap: 12px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    transition: var(--transition);
    text-decoration: none;
}

.social-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text {
        padding-right: 0;
        margin-bottom: 48px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-content::before {
        left: -10px;
        right: auto;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-color);
        transition: var(--transition);
        z-index: 999;
        padding: 24px;
    }
    
    nav.active {
        left: 0;
    }
    
    nav ul {
        flex-direction: column;
        gap: 8px;
    }
    
    nav ul li {
        margin: 0;
    }
    
    nav ul li a {
        display: block;
        padding: 16px;
        border-radius: 8px;
    }
    
    .hero-text h2 {
        font-size: 36px;
    }
    
    .hero-text h3 {
        font-size: 20px;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-text h2 {
        font-size: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        text-align: center;
        margin-bottom: 12px;
        justify-content: center;
    }
    
    .filter-btn {
        margin-bottom: 12px;
    }
    
    .page-header h1 {
        font-size: 36px;
    }
}