:root {
    --primary-color: #3b82f6;
    --secondary-color: #60a5fa;
    --dark-bg: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #22d3ee;
    --container-width: 1100px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Header */
.header {
    position: fixed;
    top: 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, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.btn-primary {
    background-color: var(--primary-color);
    color: white !important;
    padding: 10px 20px;
    border-radius: 5px;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
}

.hamburger {
    display: none;
    cursor: pointer;
}

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

.hero-content {
    max-width: 700px;
}

.subtitle {
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 10px;
    background: linear-gradient(to right, #fff, #94a3b8);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.hero .description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-secondary {
    border: 1px solid var(--text-secondary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Sections Global */
.section {
    padding: 80px 0;
}

.bg-light {
    background-color: #162033;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60%;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* About */
.about-content {
    max-width: 800px;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

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

.timeline-item {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    margin-bottom: 20px;
}

.timeline-header {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
}

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

.timeline-header .company {
    color: var(--accent);
    font-weight: 500;
}

.timeline-header .date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 5px;
}

.job-description {
    padding-left: 20px;
}

.job-description li {
    list-style-type: disc;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

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

.project-card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.project-header h3 {
    font-size: 1.3rem;
}

.github-link {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

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

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-stack span {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--secondary-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

.skill-category h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.skill-category p {
    color: var(--text-secondary);
}

/* Education & Certs */
.edu-cert-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.edu-item h3 {
    color: var(--text-primary);
    margin-bottom: 5px;
}

.edu-item .institution {
    color: var(--accent);
    font-weight: 500;
}

.edu-item .date {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.edu-item .coursework {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.cert-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.cert-list i {
    color: var(--accent);
}

/* Contact */
.contact-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    max-width: 600px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: var(--transition);
    padding: 10px;
    border-radius: 8px;
}

.contact-item:hover {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    transform: translateX(10px);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
}

.social-links {
    margin-top: 10px;
    display: flex;
    gap: 25px;
    padding-left: 10px;
}

.social-links a {
    font-size: 1.8rem;
    color: var(--text-secondary);
    transition: var(--transition);
    background-color: rgba(255, 255, 255, 0.05);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.social-links a:hover {
    color: white;
    background-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
}

/* Footer */
.footer {
    padding: 30px 0;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header .container {
        padding: 0 20px;
    }

    .hamburger {
        display: block;
        z-index: 1001;
    }

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

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

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

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

    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 70%;
        background-color: var(--dark-bg);
        flex-direction: column;
        justify-content: center;
        transition: var(--transition);
        border-left: 1px solid rgba(255, 255, 255, 0.1);
    }

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

    .hero h1 {
        font-size: 2.5rem;
    }

    .edu-cert-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}