:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #38bdf8;
    --accent-hover: #0ea5e9;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(56, 189, 248, 0.2);
}

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

.btn-outline:hover {
    background-color: var(--accent);
    color: var(--bg-color);
    transform: translateY(-2px);
}

.section {
    padding: 100px 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 2px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.language-switch {
    display: flex;
    align-items: center;
    gap: 5px;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    padding: 5px;
    transition: var(--transition);
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--accent);
}

.divider {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
}

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

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    font-size: 1rem;
    color: var(--text-secondary);
}

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

.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-primary);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-text .greeting {
    color: var(--accent);
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 10px;
    display: block;
}

.hero-text h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 10px;
}

.hero-text h2 {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 400;
}

.hero-text p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
}

.social-links {
    margin-top: 30px;
    display: flex;
    gap: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.social-links a:hover {
    background-color: var(--accent);
    color: var(--bg-color);
    transform: translateY(-3px);
}

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

.image-wrapper {
    width: 400px;
    height: 400px;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid var(--card-bg);
    box-shadow: 0 0 50px rgba(56, 189, 248, 0.1);
    position: relative;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* About Section */
.about-content {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.skill-item {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.skill-item i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.skill-item h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.skill-item p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

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

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

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

.timeline-item:nth-child(odd) {
    left: 50%;
    text-align: left;
}

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

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--accent);
    border: 4px solid var(--bg-color);
    border-radius: 50%;
    top: 15px;
    z-index: 1;
}

.timeline-item:nth-child(odd)::after {
    left: -10px;
}

.timeline-item:nth-child(even)::after {
    right: -10px;
}

.timeline-date {
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 10px;
}

.timeline-content {
    background-color: var(--card-bg);
    padding: 20px 30px;
    border-radius: 10px;
    position: relative;
}

.timeline-content h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

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

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

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

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

.card-content {
    padding: 25px;
}

.card-content .category {
    font-size: 0.8rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}

.card-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

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

/* Footer */
footer {
    background-color: var(--card-bg);
    padding: 50px 0;
    margin-top: 100px;
}

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

.footer-left h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

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

.footer-right {
    text-align: right;
}

.footer-right .social-icons {
    justify-content: flex-end;
    margin-bottom: 15px;
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--card-bg);
        width: 100%;
        text-align: center;
        padding: 20px 0;
        transition: 0.3s;
    }

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

    .menu-toggle {
        display: block;
    }

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

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

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

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

    .hero-text h1 {
        font-size: 3rem;
    }

    .hero-text p {
        margin: 0 auto 30px;
    }

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

    .social-links {
        justify-content: center;
    }

    .image-wrapper {
        width: 300px;
        height: 300px;
        margin: 0 auto;
    }

    .timeline::after {
        left: 31px;
    }

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

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

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

    .timeline-item:nth-child(even) {
        text-align: left;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .footer-right {
        text-align: center;
    }

    .footer-right .social-icons {
        justify-content: center;
    }
}