:root {
    --bg-primary: #0f0c1d;
    --bg-secondary: #1a1630;
    --accent-primary: #8a2be2;
    --accent-secondary: #6a1b9a;
    --text-primary: #f0e6ff;
    --text-secondary: #c2b5d3;
    --card-bg: #1e1838;
    --transition: all 0.4s ease;
    --shadow: 0 4px 15px rgba(138, 43, 226, 0.25);
    --nav-height: 70px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(138, 43, 226, 0.1) 0%, rgba(26, 22, 48, 0) 30%),
        radial-gradient(circle at 90% 80%, rgba(106, 27, 154, 0.1) 0%, rgba(26, 22, 48, 0) 30%);
}

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

/* Header & Navigation */
header {
    background-color: rgba(15, 12, 29, 0.95);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    height: var(--nav-height);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
}

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

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--accent-primary);
}

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

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

.hamburger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.6rem;
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 45px;
    height: 45px;
    background: var(--accent-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    z-index: 99;
}

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

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

/* Section common styles */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background: var(--accent-primary);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    position: relative;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-text {
    flex: 1;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-image img {
    max-width: 70%;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 3px solid var(--accent-primary);
    transition: transform 0.5s ease;
}

.hero-image img:hover {
    transform: scale(1.03);
}

.hero h1 {
    font-size: 2.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero h1 span {
    color: var(--accent-primary);
}

.hero p {
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 25px;
    color: var(--text-secondary);
}

.btn {
    display: inline-block;
    background: var(--accent-primary);
    color: white;
    padding: 10px 25px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background: transparent;
    border-color: var(--accent-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-primary);
    margin-left: 15px;
}

.btn-outline:hover {
    background: var(--accent-primary);
}

/* Work Experience Section */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: var(--accent-primary);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    border-radius: 2px;
}

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

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-primary);
    border: 4px solid var(--bg-primary);
    top: 25px;
    border-radius: 50%;
    z-index: 1;
}

.timeline-item.left {
    left: 0;
}

.timeline-item.left::after {
    right: -12px;
}

.timeline-item.right {
    left: 50%;
}

.timeline-item.right::after {
    left: -8px;
}

.timeline-content {
    padding: 20px;
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(138, 43, 226, 0.3);
}

.timeline-content h3 {
    color: var(--accent-primary);
    margin-bottom: 10px;
}

.timeline-content .date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.timeline-content .date i {
    margin-right: 8px;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.skill-category {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(138, 43, 226, 0.3);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--accent-primary);
    display: flex;
    align-items: center;
}

.skill-category h3 i {
    margin-right: 10px;
}

.skill-item {
    margin-bottom: 12px;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 0.95rem;
}

.skill-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 5px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 5px;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: progress-glow 2s infinite;
}

@keyframes progress-glow {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* Skills Slider */
.skills-slider {
    display: none;
    position: relative;
    max-width: 100%;
    overflow: hidden;
    margin: 0 auto;
}

.slider-container {
    display: flex;
    transition: transform 0.5s ease;
}

.slider-item {
    min-width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
}

.slider-nav {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    gap: 15px;
}

.slider-btn {
    background: var(--accent-primary);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.slider-btn:hover {
    background: var(--accent-secondary);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(138, 43, 226, 0.3);
}

.project-image {
    height: 200px;
    overflow: hidden;
}

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

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

.project-content {
    padding: 20px;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--accent-primary);
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tech-item {
    background: rgba(138, 43, 226, 0.15);
    color: var(--accent-primary);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.project-links {
    display: flex;
    gap: 12px;
}

.project-links a {
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
    font-size: 0.95rem;
}

.project-links a:hover {
    color: var(--accent-primary);
}

.view-all-btn {
    text-align: center;
    margin-top: 40px;
}

/* Projects Overlay */
.projects-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 12, 29, 0.98);
    z-index: 2000;
    overflow-y: auto;
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.projects-overlay.show {
    display: block;
    opacity: 1;
}

.overlay-content {
    max-width: 1200px;
    margin: 80px auto;
    padding: 20px;
}

.overlay-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.close-overlay {
    background: var(--accent-primary);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: var(--transition);
}

.close-overlay:hover {
    background: var(--accent-secondary);
    transform: rotate(90deg);
}

.overlay-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-icon {
    width: 45px;
    height: 45px;
    background: rgba(138, 43, 226, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1.1rem;
}

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

.contact-text p,
.contact-text a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.contact-form .form-group {
    margin-bottom: 15px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    background: var(--card-bg);
    border: 1px solid rgba(138, 43, 226, 0.3);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.2);
}

.contact-form textarea {
    height: 140px;
    resize: vertical;
}

/* Footer */
footer {
    background: var(--bg-secondary);
    padding: 30px 0 15px;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: var(--card-bg);
    color: var(--text-primary);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-primary);
    transform: translateY(-5px);
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .timeline::after {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-item.right {
        left: 0;
    }

    .timeline-item.left::after,
    .timeline-item.right::after {
        left: 21px;
    }
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.1rem;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .hero-image {
        flex: 0 0 50%;
    }

    .hero-text {
        flex: 0 0 50%;
    }

    .hero-image img {
        max-width: 80%;
    }

    .skills-container {
        display: none;
    }

    .skills-slider {
        display: block;
    }
}

@media (max-width: 750px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .hero-text {
        margin-top: 0;
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero p {
        margin: 0 auto 25px;
    }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        right: -100%;
        width: 70%;
        height: calc(100vh - var(--nav-height));
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: center;
        padding-top: 40px;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 15px 0;
    }

    .hamburger {
        display: block;
    }

    .section-title h2 {
        font-size: 1.7rem;
    }

    .hero-image img {
        max-width: 60%;
    }

    .btn-container {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.9rem;
    }

    .btn-container {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .btn-outline {
        margin-left: 0;
    }

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

    .section-title h2 {
        font-size: 1.6rem;
    }

    .hero {
        min-height: 85vh;
    }

    section {
        padding: 60px 0;
    }

    .hero-image img {
        max-width: 80%;
    }
}

.btn-container {
    display: flex;
    flex-wrap: wrap;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text h1,
.hero-text p,
.btn-container {
    animation: fadeInUp 0.8s ease-out forwards;
}

.hero-text h1 {
    animation-delay: 0.1s;
}

.hero-text p {
    animation-delay: 0.3s;
}

.btn-container {
    animation-delay: 0.5s;
}