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

:root {
    --primary-gradient: linear-gradient(90deg, #1a1a1a, #333333);
    --hover-gradient: linear-gradient(90deg, #000000, #222222);
    --background-light: #f8f9fa;
    --text-dark: #333;
    --text-light: #666;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
}

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

a {
    text-decoration: none;
    color: #1a1a1a;
}

a:hover {
    text-decoration: underline;
}

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

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.5rem;
    color: var(--text-dark);
    position: relative;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: 2px;
    transition: var(--transition-normal);
}

.section:hover .section-title::after {
    width: 100px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--border-radius);
    transition: var(--transition-normal);
    font-weight: 600;
    border: none;
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--hover-gradient);
    z-index: -1;
    transition: var(--transition-normal);
    opacity: 0;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn:hover::before {
    opacity: 1;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a1a;
    background: linear-gradient(90deg, #1a1a1a, #333333);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: #333;
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #1a1a1a;
    text-decoration: none;
}

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

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1498050108023-c5249f4df085?ixlib=rb-1.2.1&auto=format&fit=crop&w=1352&q=80') no-repeat center center;
    background-size: cover;
    opacity: 0.1;
    z-index: 0;
}

.hero-content {
    max-width: 600px;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #333;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #666;
}

.hero .highlight {
    color: #1a1a1a;
    font-weight: 700;
}

/* About Section */
.about {
    background-color: white;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

/* GitHub Contributions */
.github-contributions {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.github-contributions:hover {
    box-shadow: var(--shadow-md);
}

.github-year-filter select {
    cursor: pointer;
    transition: var(--transition-fast);
}

.github-year-filter select:hover {
    border-color: #1a1a1a;
}

#githubContributionGraph {
    overflow: hidden;
    position: relative;
}

/* GitHub Contribution Styles */
.contribution-summary, .recent-activity {
    margin-bottom: 1rem;
}

.contribution-summary h5, .recent-activity h5 {
    color: var(--text-dark);
}

.recent-activity ul {
    list-style: none;
}

.recent-activity li {
    transition: var(--transition-fast);
}

.recent-activity li:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.recent-activity a {
    color: #1a1a1a;
    font-weight: 500;
    transition: var(--transition-fast);
}

.recent-activity a:hover {
    color: #000;
}

/* Loading Spinner */
.loading-spinner {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid rgba(26, 26, 26, 0.1);
    border-radius: 50%;
    border-top-color: #1a1a1a;
    animation: spin 1s ease-in-out infinite;
    z-index: 10;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.loading-overlay {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    z-index: 5;
    border-radius: var(--border-radius);
}

.about-image {
    flex: 1;
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 5px solid #1a1a1a;
    z-index: 0;
    border-radius: 10px;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #333;
}

.about-text p {
    margin-bottom: 20px;
    color: #666;
}

/* Skills Section */
.skills {
    background-color: #f8f9fa;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.skill-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border-top: 4px solid #1a1a1a;
    transform: translateY(20px);
    opacity: 0;
}

.skill-card.animate {
    transform: translateY(0);
    opacity: 1;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.skill-card p {
    color: #666;
}

.skill-list {
    list-style: none;
    margin-top: 15px;
}

.skill-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.skill-list li::before {
    content: '✓';
    color: #1a1a1a;
    margin-right: 10px;
    font-weight: bold;
}

/* Projects Section */
.projects {
    background-color: white;
}

.projects-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--background-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    transform: translateY(20px);
    opacity: 0;
}

.project-card.animate {
    transform: translateY(0);
    opacity: 1;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.project-image {
    height: 200px;
    background-color: #ddd;
    background-size: cover;
    background-position: center;
}

.project-info {
    padding: 20px;
}

.project-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #333;
}

.project-info p {
    color: #666;
    margin-bottom: 15px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.project-tag {
    background-color: #e9ecef;
    color: #1a1a1a;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-right: 10px;
    margin-bottom: 10px;
}

/* Contact Section */
.contact {
    background-color: #f8f9fa;
}

.contact-container {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #333;
}

.contact-info p {
    margin-bottom: 20px;
    color: #666;
}

.contact-links {
    margin-top: 30px;
}

.contact-links a {
    display: inline-block;
    margin-right: 20px;
    font-size: 1.2rem;
    color: #1a1a1a;
}

.contact-form {
    flex: 1;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-sm);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1a1a1a;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    background-color: white;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 8px;
    display: block;
    transition: var(--transition-fast);
}

.form-group input:focus + label,
.form-group textarea:focus + label {
    color: #1a1a1a;
}

/* Footer */
footer {
    background-color: #333;
    color: white;
    padding: 50px 0;
    text-align: center;
}

.footer-content {
    margin-bottom: 30px;
}

.footer-content h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.social-links {
    margin-bottom: 20px;
}

.social-links a {
    display: inline-block;
    margin: 0 10px;
    color: white;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #1a1a1a;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-size: 0.9rem;
    color: #aaa;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
    }

    .contact-container {
        flex-direction: column;
    }

    .section-title {
        font-size: 2rem;
    }

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: left 0.3s ease;
    }

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

    .nav-links li {
        margin: 20px 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

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