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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: #666;
}

/* Color Variables */
:root {
    --primary-blue: #2563eb;
    --secondary-teal: #0891b2;
    --accent-orange: #ea580c;
    --success-green: #059669;
    --warning-yellow: #d97706;
    --error-red: #dc2626;
    --light-gray: #f8fafc;
    --medium-gray: #64748b;
    --dark-gray: #1e293b;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
    --gradient-accent: linear-gradient(135deg, var(--accent-orange), #f97316);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* Utility Classes */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-accent {
    background: var(--accent-orange);
    color: var(--white);
}

.btn-accent:hover {
    background: #dc2626;
    color: var(--white);
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding-top: 70px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

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

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.stat {
    text-align: center;
}

.stat-number, .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--medium-gray);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

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

.hero-avatar {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
    overflow: hidden;
    padding: 8px;
}

.hero-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 4px solid var(--white);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-highlights {
    margin-top: 2rem;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 0.5rem;
    transition: transform 0.3s ease;
}

.highlight:hover {
    transform: translateX(10px);
}

.highlight i {
    color: var(--primary-blue);
    font-size: 1.2rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid #e2e8f0;
}

.info-card h3 {
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.5rem 0;
}

.contact-item i {
    color: var(--primary-blue);
    width: 20px;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: auto;
    height: 40px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: transform 0.3s ease;
}

.info-card .social-links a {
    padding:5px;
    border-radius: 13px;
    height: auto;
    width: auto;
}

.social-links a:hover {
    transform: scale(1.1);
}

.resume-download {
    margin-top: 1.5rem;
    text-align: center;
}

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

/* Skills Section */
.skills {
    padding: 6rem 0;
    background: var(--light-gray);
}

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

.skill-category {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-header i {
    font-size: 2rem;
    color: var(--primary-blue);
}

.category-header h3 {
    color: var(--dark-gray);
    margin-bottom: 0;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-name {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-gray);
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 2s ease-in-out;
    width: 0;
}

.skill-progress[data-progress="95"] { width: 95%; }
.skill-progress[data-progress="92"] { width: 92%; }
.skill-progress[data-progress="90"] { width: 90%; }
.skill-progress[data-progress="88"] { width: 88%; }
.skill-progress[data-progress="85"] { width: 85%; }
.skill-progress[data-progress="80"] { width: 80%; }
.skill-progress[data-progress="78"] { width: 78%; }
.skill-progress[data-progress="75"] { width: 75%; }

/* Experience Section */
.experience {
    padding: 6rem 0;
    background: var(--white);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.timeline-item:nth-child(even) {
    direction: rtl;
}

.timeline-item:nth-child(even) .timeline-content {
    direction: ltr;
}

.timeline-date {
    text-align: right;
    padding-right: 2rem;
}

.timeline-item:nth-child(even) .timeline-date {
    text-align: left;
    padding-left: 2rem;
    padding-right: 0;
}

.timeline-date span:first-child {
    display: block;
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 1.1rem;
}

.duration {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.timeline-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-blue);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 30px;
    right: -12px;
    width: 20px;
    height: 20px;
    background: var(--primary-blue);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: var(--shadow-md);
}

.timeline-item:nth-child(even) .timeline-content {
    border-left: none;
    border-right: 4px solid var(--primary-blue);
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -12px;
    right: auto;
}

.company-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.timeline-content h3 {
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: var(--medium-gray);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.achievements {
    list-style: none;
    margin-bottom: 1.5rem;
}

.achievements li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: #555;
}

.achievements li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: bold;
}

.key-achievements {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.achievement-badge {
    padding: 0.3rem 0.8rem;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Projects Section */
.projects {
    padding: 6rem 0;
    background: var(--light-gray);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.project-card.featured {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.project-image {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-card.featured .project-image {
    height: auto;
    min-height: 300px;
}

.project-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
}

.project-content {
    padding: 2rem;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.project-header h3 {
    color: var(--dark-gray);
    margin-bottom: 0;
}

.project-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.badge {
    padding: 0.3rem 0.8rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge.primary { background: var(--primary-blue); color: var(--white); }
.badge.success { background: var(--success-green); color: var(--white); }
.badge.warning { background: var(--warning-yellow); color: var(--white); }
.badge.info { background: var(--secondary-teal); color: var(--white); }
.badge.error { background: var(--error-red); color: var(--white); }

.project-content p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.tech-tag {
    padding: 0.3rem 0.8rem;
    background: var(--light-gray);
    color: var(--dark-gray);
    border-radius: 1rem;
    font-size: 0.8rem;
    border: 1px solid #e2e8f0;
}

.project-stats {
    display: flex;
    gap: 2rem;
}

.project-stats .stat {
    text-align: center;
}

.project-stats .stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.project-stats .stat-label {
    font-size: 0.8rem;
    color: var(--medium-gray);
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
    font-size: 1.5rem;
}

.contact-card h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
}

.contact-card p {
    margin-bottom: 1rem;
    color: var(--medium-gray);
}

.contact-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-link:hover {
    color: var(--secondary-teal);
}

.contact-form-container {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 1rem;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-gray);
}

.form-group input,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid #e2e8f0;
    border-radius: 0.5rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.social-section {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid #e2e8f0;
}

.social-section h3 {
    margin-bottom: 2rem;
    color: var(--dark-gray);
}

.social-section .social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}


.social-link.linkedin {
    background: #0077b5;
    color: var(--white);
}

.social-link.github {
    background: #333;
    color: var(--white);
}

.social-link.website {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
    color: var(--white);
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--secondary-teal);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.back-to-top:active {
    transform: translateY(-1px);
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

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

.footer-text p {
    margin-bottom: 0.5rem;
    color: #94a3b8;
}

.footer-links a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--secondary-teal);
}

/* Responsive Design */

/* Tablet Styles (768px - 1024px) */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
    }
    
    .timeline-date {
        text-align: left;
        padding-left: 0;
        padding-right: 0;
        margin-bottom: 1rem;
    }
    
    .timeline-item:nth-child(even) .timeline-date {
        text-align: left;
        padding-left: 0;
    }
    
    .timeline-content::before {
        left: -72px;
        right: auto;
    }
    
    .timeline-item:nth-child(even) .timeline-content {
        border-left: 4px solid var(--primary-blue);
        border-right: none;
    }
    
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -72px;
    }
    
    .project-card.featured {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

/* Mobile Styles (< 768px) */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-avatar {
        width: 200px;
        height: 200px;
        padding: 6px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 0;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-content::before {
        left: -62px;
    }
    
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -62px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .social-section .social-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .social-link {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .hero-buttons,
    .about-highlights,
    .key-achievements,
    .project-tech {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .resume-download .btn {
        font-size: 0.9rem;
        padding: 0.75rem 1.5rem;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}