:root {
    --bg-color: #0d0f17;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --accent-primary: #3b82f6;
    --accent-secondary: #8b5cf6;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.05);
    --glass-bg: rgba(13, 15, 23, 0.7);
}

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

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

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
}

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

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.shape {
    position: absolute;
    filter: blur(100px);
    border-radius: 50%;
    animation: float 20s infinite alternate ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(59, 130, 246, 0.3);
    top: -100px;
    left: -100px;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: rgba(139, 92, 246, 0.2);
    bottom: -200px;
    right: -100px;
    animation-delay: -5s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: rgba(236, 72, 153, 0.2);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 50px) scale(1.1); }
    100% { transform: translate(-50px, -50px) scale(0.9); }
}

/* Navigation */
.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-links a {
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s;
}

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

/* Common Classes & Typography */
section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(to right, #fff, #a0aec0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
}

.hero-content {
    max-width: 800px;
    animation: slideUp 1s ease-out;
}

.subtitle {
    color: var(--accent-primary);
    font-size: 1.2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.title {
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.title span {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
}

.primary-btn {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #fff;
    margin-right: 1rem;
    box-shadow: 0 10px 20px -10px rgba(59, 130, 246, 0.5);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -10px rgba(59, 130, 246, 0.7);
}

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

.secondary-btn:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

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

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
    will-change: transform;
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.skill-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

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

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

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--card-border);
    top: 0;
    bottom: 0;
    left: 20px;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px 40px;
    position: relative;
    background-color: inherit;
    width: 100%;
}

.timeline-dot {
    position: absolute;
    width: 15px;
    height: 15px;
    right: -7px;
    background-color: var(--accent-secondary);
    border: 4px solid var(--bg-color);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
    left: 13px;
    box-shadow: 0 0 10px var(--accent-secondary);
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--accent-primary);
}

.timeline-content h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 400;
}

.timeline-content p {
    color: var(--text-secondary);
}

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

.project-card {
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.hover-glow:hover {
    border-color: rgba(139, 92, 246, 0.5);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
    transform: translateY(-5px);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.project-card:hover::before {
    transform: translateX(100%);
}

.project-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-primary);
    font-size: 0.8rem;
    margin-right: 0.5rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.award-card {
    border: 1px solid rgba(236, 72, 153, 0.3);
}

.award-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    padding: 4rem 2rem;
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
}

.footer-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.social-links {
    margin: 2rem 0;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-links a {
    color: var(--text-secondary);
    transition: color 0.3s;
}

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

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 2rem;
    border-top: 1px solid var(--card-border);
    padding-top: 2rem;
}

/* Utilities */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .title { font-size: 2.5rem; }
    .nav-links { display: none; }
    .timeline::after { left: 15px; }
    .timeline-dot { left: 8px; }
    .timeline-item { padding-left: 35px; }
}