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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.nav-logo a {
    font-size: 1.8rem;
    font-weight: 700;
    color: #4f46e5;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-logo a:hover {
    color: #6366f1;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #4f46e5;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #4f46e5;
    transition: width 0.3s ease;
}

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

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

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

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

.hero-text {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: #fbbf24;
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: #fbbf24;
    animation: underlineGrow 2s ease-out;
}

@keyframes underlineGrow {
    from { width: 0; }
    to { width: 100%; }
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: #fbbf24;
    color: #333;
}

.btn-primary:hover {
    background: #f59e0b;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(251, 191, 36, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #333;
    transform: translateY(-2px);
}

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

.social-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

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

.hero-image {
    display: flex;
    justify-content: center;
    position: relative;
}

.image-container {
    position: relative;
    width: 400px;
    height: 400px;
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255, 255, 255, 0.2);
    animation: float 6s ease-in-out infinite;
}

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

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    font-size: 2rem;
    animation: floatAround 8s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 20%;
    right: 10%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    bottom: 20%;
    left: 15%;
    animation-delay: 4s;
}

.floating-element:nth-child(4) {
    bottom: 10%;
    right: 15%;
    animation-delay: 6s;
}

@keyframes floatAround {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(10px, -10px) rotate(90deg); }
    50% { transform: translate(-5px, -20px) rotate(180deg); }
    75% { transform: translate(-10px, 5px) rotate(270deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border: 2px solid white;
    border-top: none;
    border-right: none;
    transform: rotate(-45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(-45deg); }
    40% { transform: translateY(-10px) rotate(-45deg); }
    60% { transform: translateY(-5px) rotate(-45deg); }
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #4f46e5;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: #f8fafc;
}

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

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #666;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.stat h4 {
    font-size: 2rem;
    font-weight: 700;
    color: #4f46e5;
    margin-bottom: 0.5rem;
}

.stat p {
    color: #666;
    font-weight: 500;
}

.about-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Skills Section */
.skills-content {
    display: grid;
    gap: 3rem;
}

.skills-category h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: #333;
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.skill-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.skill-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.skill-item i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #4f46e5;
}

.skill-item span {
    display: block;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.skill-level {
    height: 4px;
    background: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.skill-level::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, #4f46e5, #6366f1);
    border-radius: 2px;
    width: 0;
    transition: width 2s ease;
}

.skill-item:hover .skill-level::after {
    width: var(--level, 0%);
}

/* Projects Section */
.projects {
    background: #f8fafc;
}

.projects-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid #4f46e5;
    background: transparent;
    color: #4f46e5;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: #4f46e5;
    color: white;
}

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

.project-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    opacity: 1;
    transform: scale(1);
}

.project-card.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(79, 70, 229, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4f46e5;
    text-decoration: none;
    transition: all 0.3s ease;
}

.project-link:hover {
    transform: scale(1.1);
    background: #fbbf24;
    color: white;
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.project-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.tech-tag {
    padding: 5px 12px;
    background: #e0e7ff;
    color: #4f46e5;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #4f46e5;
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    background: #4f46e5;
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    white-space: nowrap;
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    width: 45%;
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: auto;
    margin-left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
}

.timeline-content h3 {
    color: #4f46e5;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.timeline-content h4 {
    color: #666;
    margin-bottom: 1rem;
    font-weight: 500;
}

.timeline-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.timeline-content ul {
    list-style: none;
    padding-left: 0;
}

.timeline-content li {
    color: #666;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.timeline-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #4f46e5;
    font-weight: bold;
}

/* Contact Section */
.contact {
    background: #f8fafc;
}

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

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #333;
}

.contact-info p {
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: #4f46e5;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.contact-item h4 {
    margin-bottom: 0.25rem;
    color: #333;
}

.contact-item p {
    color: #666;
    margin: 0;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: transparent;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group label {
    position: absolute;
    top: 15px;
    left: 15px;
    color: #666;
    transition: all 0.3s ease;
    pointer-events: none;
    background: white;
    padding: 0 5px;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 10px;
    font-size: 0.8rem;
    color: #4f46e5;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 2rem 0;
}

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

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #4f46e5;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #4f46e5;
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

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

.back-to-top:hover {
    background: #6366f1;
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

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

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 50px;
    }

    .timeline-date {
        position: static;
        transform: none;
        margin-bottom: 1rem;
        align-self: flex-start;
    }

    .timeline-content {
        width: 100%;
        margin: 0 !important;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    section {
        padding: 60px 0;
    }

    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .projects-filter {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 8px 15px;
        font-size: 0.9rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 200px;
        text-align: center;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #4f46e5;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #6366f1;
}

/* Loading Animation */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Skill Level Animations */
.skill-item[data-level="95"] .skill-level::after { --level: 95%; }
.skill-item[data-level="90"] .skill-level::after { --level: 90%; }
.skill-item[data-level="88"] .skill-level::after { --level: 88%; }
.skill-item[data-level="85"] .skill-level::after { --level: 85%; }
.skill-item[data-level="82"] .skill-level::after { --level: 82%; }
.skill-item[data-level="80"] .skill-level::after { --level: 80%; }
.skill-item[data-level="78"] .skill-level::after { --level: 78%; }
.skill-item[data-level="75"] .skill-level::after { --level: 75%; }
.skill-item[data-level="70"] .skill-level::after { --level: 70%; }
.skill-item[data-level="68"] .skill-level::after { --level: 68%; }
.skill-item[data-level="65"] .skill-level::after { --level: 65%; }
.skill-item[data-level="92"] .skill-level::after { --level: 92%; }