:root {
    --primary-color: #2a2a2a;
    --secondary-color: #4a90e2;
    --accent-color: #61dafb;
    --text-color: #ffffff;
    --gradient-start: #1a1a1a;
    --gradient-end: #2d2d2d;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.2;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.profile-container {
    text-align: center;
    animation: fadeIn 1s ease-out;
}

.profile-image {
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    position: relative;
    overflow: hidden;
    border-radius: 50%;
    border: 4px solid var(--accent-color);
    box-shadow: 0 0 20px rgba(97, 218, 251, 0.3);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glow 2s ease-in-out infinite alternate;
}

h2 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.tagline {
    font-size: 1.2rem;
    color: var(--accent-color);
    opacity: 0;
    animation: slideUp 0.5s ease-out forwards;
    animation-delay: 0.5s;
}

/* Sections */
.section {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.skill-item i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    margin-top: 1rem;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--accent-color);
    width: var(--progress);
    animation: progressFill 1.5s ease-out forwards;
}

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

.portfolio-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.portfolio-item:hover {
    transform: scale(1.05);
}

.portfolio-content {
    padding: 2rem;
}

/* Contact Section */
.contact-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    color: var(--text-color);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s ease, color 0.3s ease;
}

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

.contact-item i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {
    from {
        text-shadow: 0 0 5px rgba(97, 218, 251, 0.2),
                     0 0 10px rgba(97, 218, 251, 0.2),
                     0 0 15px rgba(97, 218, 251, 0.2);
    }
    to {
        text-shadow: 0 0 10px rgba(97, 218, 251, 0.4),
                     0 0 20px rgba(97, 218, 251, 0.4),
                     0 0 30px rgba(97, 218, 251, 0.4);
    }
}

@keyframes progressFill {
    from { width: 0; }
    to { width: var(--progress); }
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.5rem; }
    .section { padding: 3rem 1rem; }
    .contact-links { flex-direction: column; align-items: center; }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-color);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}