/* 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: #ffffff;
    background-color: #0a0a0a;
    overflow-x: hidden;
}

/* Variables */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #ff6b6b;
    --accent-color: #ffd700;
    --text-light: #ffffff;
    --text-gray: #b8b8b8;
    --bg-dark: #0a0a0a;
    --bg-card: #1a1a1a;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

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

.nav-logo h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
}

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

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px 50px;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

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

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: #00a8cc;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.4);
}

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

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

.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInRight 1s ease-out;
}

.profile-photo {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
    border: 4px solid var(--primary-color);
    transition: var(--transition);
}

.profile-photo::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(0, 212, 255, 0.2), transparent);
    animation: shimmer 3s infinite;
    z-index: 1;
}

.profile-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: relative;
    z-index: 0;
}

.profile-photo:hover {
    transform: scale(1.05);
    border-color: var(--secondary-color);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 30px;
    background: var(--primary-color);
    animation: scroll 2s infinite;
}

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

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

.section-header h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-gray);
}

/* About Section */
.about {
    background: var(--bg-card);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 3rem;
    align-items: start;
}

.about-photo {
    position: sticky;
    top: 120px;
}

.about-photo img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    object-position: center;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.about-photo img:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.3);
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-gray);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--primary-color);
    transition: var(--transition);
}

.tag:hover {
    background: var(--primary-color);
    color: var(--bg-dark);
}

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

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

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
    padding: 0 2rem;
}

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

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

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

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

.timeline-item:nth-child(even)::before {
    left: -10px;
}

.timeline-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

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

.timeline-content h4 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.timeline-content .period {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.timeline-content .grade {
    color: var(--accent-color);
    font-weight: 600;
}

/* Experience Section */
.experience {
    background: var(--bg-card);
}

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

.experience-card {
    background: var(--bg-dark);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.experience-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
}

.experience-header h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.experience-header .company {
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.experience-header .period {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.experience-header .location {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.experience-details {
    list-style: none;
    padding-left: 0;
}

.experience-details li {
    color: var(--text-gray);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.experience-details li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

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

.project-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
}

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

.project-header h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.project-year {
    color: var(--secondary-color);
    font-weight: 500;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: var(--bg-dark);
    color: var(--primary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid var(--primary-color);
}

.project-description {
    margin-bottom: 1.5rem;
}

.project-description p {
    color: var(--text-gray);
    line-height: 1.6;
}

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

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.project-link i {
    margin-right: 0.5rem;
}

/* Achievements Section */
.achievements {
    background: var(--bg-card);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.achievement-card {
    background: var(--bg-dark);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

.achievement-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
}

.achievement-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.achievement-card h3 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.achievement-card p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* Contact Section */
.contact {
    background: var(--bg-dark);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.contact-icon {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 60px;
}

.contact-details {
    text-align: left;
}

.contact-details h3 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-gray);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
}

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

/* Footer */
.footer {
    background: var(--bg-dark);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--bg-card);
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

@keyframes scroll {
    0%, 20% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
    80%, 100% {
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-dark);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

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

    .nav-toggle {
        display: flex;
    }

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

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

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

    .section-header h2 {
        font-size: 2rem;
    }

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

    .timeline-item {
        width: 100%;
        padding-left: 50px;
        left: 0 !important;
    }

    .timeline-item::before {
        left: 10px !important;
    }

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

    .about-photo {
        position: static;
        max-width: 200px;
        margin: 0 auto;
    }

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

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

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

    .achievements-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
    }

    .contact-details {
        text-align: center;
    }
}

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

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

    .btn {
        width: 100%;
    }

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