* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header & Navigation */
header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: #3498db;
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: #3498db;
    background-color: rgba(255, 255, 255, 0.1);
}

/* Mobile Navigation */
.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: white;
}

.mobile-nav {
    display: none;
    background-color: #2c3e50;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 999;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.mobile-nav.active {
    display: block;
}

.mobile-nav ul {
    list-style: none;
    padding: 1rem 0;
}

.mobile-nav li {
    text-align: center;
    padding: 0.8rem 0;
}

.mobile-nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    display: block;
    padding: 0.5rem 1rem;
    transition: background-color 0.3s;
}

.mobile-nav a:hover,
.mobile-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #3498db;
}

/* Page Sections */
.page {
    display: none;
    padding: 4rem 0;
    min-height: calc(100vh - 140px);
}

.page.active {
    display: block;
}

/* Home Section */
#home {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.hero {
    max-width: 800px;
    padding: 2rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #ecf0f1;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #ecf0f1;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    margin-top: 1.5rem;
}

.btn:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #2c3e50;
    position: relative;
    padding-bottom: 0.8rem;
    text-align: center;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: #3498db;
    border-radius: 2px;
}

/* About Section */
.about-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 3rem;
    margin-top: 2rem;
}

.about-text {
    flex: 1;
    min-width: 300px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-image {
    flex: 1;
    min-width: 100px;
    text-align: center;
}

.about-image img {
    max-width: 50%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.about-image img:hover {
    transform: scale(1.02);
}

/* Education Section */
.education-category {
    background-color: #d9ecec;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    margin-top: 2rem;
}

.education-text h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.education-text p {
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

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

.skill-category {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h2 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-category ul {
    list-style: none;
}

.skill-category li {
    padding: 0.8rem 0;
    color: #3498db;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #eee;
}

.skill-category li:last-child {
    border-bottom: none;
}

.skill-category i {
    font-size: 1.2rem;
    width: 25px;
}

.music-skill {
    grid-column: 1 / -1;
    text-align: center;
    margin-top: 2rem;
}

.music-skill p {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.keyboard-img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Projects Section */
.projects-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-category {
    background-color: #d6eeee;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.project-category:hover {
    transform: translateY(-5px);
}

.project-category h3 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.project-category p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-image {
    text-align: center;
    margin-bottom: 1.5rem;
}

.project-image img {
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.download-btn,
.external-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #3498db;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.download-btn:hover,
.external-link:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.contact-info h3 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.8rem;
}

.contact-info > p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.contact-details p {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-details a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s;
}

.contact-details a:hover {
    color: #2980b9;
    text-decoration: underline;
}

.contact-details i {
    width: 20px;
    color: #2c3e50;
}

.contact-form {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
    color: #2c3e50;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

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

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: color 0.3s, transform 0.3s;
}

.social-links a:hover {
    color: #3498db;
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content,
    .contact-container {
        flex-direction: column;
    }
    
    .education-category,
    .skill-category,
    .project-category {
        padding: 1.5rem;
    }
    
    .projects-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        width: 95%;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero h2 {
        font-size: 1.3rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .about-text,
    .education-text p,
    .contact-details p {
        font-size: 1rem;
    }
    
    footer p {
        font-size: 0.9rem;
    }
}

/* Animation Classes */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page.active {
    animation: fadeIn 0.5s ease-out;
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 5px;
    text-align: center;
    font-weight: 500;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}