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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    transition: all 0.3s ease;
}

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

/* Modern Navbar - Fixed */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.8rem;
    font-weight: bold;
    background: linear-gradient(45deg, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu a {
    text-decoration: none;
    color: #1e293b;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    padding: 10px 0;
}

.nav-menu a:hover {
    color: #2563eb;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 5px;
    left: 0;
    background: linear-gradient(45deg, #2563eb, #7c3aed);
    transition: width 0.3s;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #1e293b;
    margin: 3px 0;
    transition: 0.3s;
}

/* Theme Toggle Button - Enhanced Design */
.theme-toggle {
    background: linear-gradient(45deg, #667eea, #764ba2);
    border: none;
    color: white;
    padding: 10px 18px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.4s ease;
    margin-left: 1rem;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.theme-toggle:hover::before {
    left: 100%;
}

.theme-toggle:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.theme-toggle:active {
    transform: translateY(0) scale(0.98);
}

/* Dark Theme for Theme Toggle */
body.dark-theme .theme-toggle {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

body.dark-theme .theme-toggle:hover {
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

/* Mobile responsive for theme toggle */
@media (max-width: 768px) {
    .theme-toggle {
        margin-left: 0.5rem;
        padding: 8px 15px;
        font-size: 0.8rem;
        border-radius: 25px;
    }
    
    .nav-container {
        justify-content: space-between;
        align-items: center;
        flex-wrap: nowrap;
    }
    
    .hamburger {
        order: 3;
        margin-left: 0.5rem;
    }
    
    .theme-toggle {
        order: 2;
    }
}

@media (max-width: 480px) {
    .theme-toggle {
        padding: 6px 12px;
        font-size: 0.75rem;
        margin-left: 0.3rem;
    }
}

/* Enhanced navbar for better button placement */
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Light Theme (Default) */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    transition: all 0.3s ease;
}

/* Hero Section - Side by Side Layout */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: #f8fafc;
    padding: 100px 0 50px;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-text {
    text-align: left;
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #1e293b;
    font-weight: 700;
    line-height: 1.2;
}

.highlight {
    color: #2563eb;
}

.hero-text h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #64748b;
    font-weight: 400;
}

.hero-text p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: #475569;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 250px;
}

.btn i {
    font-size: 1rem;
    flex-shrink: 0;
}

.btn.primary {
    background: #2563eb;
    color: white;
}

.btn.primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn.secondary {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.btn.secondary:hover {
    background: #2563eb;
    color: white;
}

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

.social-links a {
    color: #64748b;
    font-size: 1.5rem;
    transition: all 0.3s;
    padding: 10px;
    border-radius: 8px;
    background: #e2e8f0;
}

.social-links a:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-2px);
}

.hero-image {
    text-align: center;
}

.hero-image img {
    width: 350px;
    height: 350px;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.hero-image img:hover {
    transform: scale(1.05);
}

/* Dark Theme for Hero */
body.dark-theme .hero {
    background: #0f172a;
}

body.dark-theme .hero-text h1 {
    color: #e2e8f0;
}

body.dark-theme .hero-text h2 {
    color: #94a3b8;
}

body.dark-theme .hero-text p {
    color: #cbd5e1;
}

body.dark-theme .social-links a {
    background: #1e293b;
    color: #94a3b8;
}

body.dark-theme .social-links a:hover {
    background: #2563eb;
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-text {
        text-align: center;
        order: 2;
    }
    
    .hero-image {
        order: 1;
    }
    
    .hero-image img {
        width: 250px;
        height: 250px;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8fafc;
}

.about h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

/* Dark Theme for About */
body.dark-theme .about {
    background: #0f172a;
}

body.dark-theme .about h2 {
    color: #e2e8f0;
}

body.dark-theme .about-text p {
    color: #cbd5e1;
}

body.dark-theme .contact-item {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-theme .contact-item i {
    color: #00d4ff;
}

body.dark-theme .contact-item span {
    color: #e2e8f0;
}

.about h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #64748b;
    line-height: 1.8;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.contact-item i {
    font-size: 1.5rem;
    color: #2563eb;
}

/* Skills Section */
.skills {
    padding: 100px 0;
}

.skills h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.skills h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
    border-top: 4px solid #2563eb;
}

.skill-category:hover {
    transform: translateY(-10px);
}

.skill-icon {
    margin-bottom: 1.5rem;
}

.skill-icon i {
    font-size: 3rem;
    color: #2563eb;
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: #1e293b;
    font-size: 1.3rem;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
}

.skill-tag {
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    color: #3730a3;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s;
}

.skill-tag:hover {
    background: linear-gradient(135deg, #3730a3, #2563eb);
    color: white;
    transform: scale(1.05);
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: #f8fafc;
}

.projects h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

/* Dark Theme for Projects */
body.dark-theme .projects {
    background: #0f172a;
}

body.dark-theme .projects h2 {
    color: #e2e8f0;
}

body.dark-theme .project-card {
    background: #1e293b;
    border: 1px solid #334155;
}

body.dark-theme .project-card h3 {
    color: #e2e8f0;
}

body.dark-theme .project-card p {
    color: #94a3b8;
}

body.dark-theme .project-tech span {
    background: rgba(0, 212, 255, 0.2);
    color: #00d4ff;
}

.projects h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    border-top: 4px solid #2563eb;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-icon {
    margin-bottom: 1.5rem;
}

.project-icon i {
    font-size: 3rem;
    color: #2563eb;
}

.project-card h3 {
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 1.4rem;
}

.project-card p {
    margin-bottom: 1.5rem;
    color: #64748b;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.project-tech span {
    background: #e0e7ff;
    color: #3730a3;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.project-links {
    text-align: center;
}

.project-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1.5rem;
    border: 2px solid #2563eb;
    border-radius: 25px;
    transition: all 0.3s;
}

.project-link:hover {
    background: #2563eb;
    color: white;
}

/* Achievements Section */
.achievements {
    padding: 100px 0;
}

.achievements h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.achievements h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.achievement-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
    position: relative;
    border-top: 4px solid #fbbf24;
}

.achievement-card:hover {
    transform: translateY(-10px);
}

.achievement-icon i {
    font-size: 3rem;
    color: #fbbf24;
    margin-bottom: 1rem;
}

.achievement-card h3 {
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 1.2rem;
}

.achievement-card p {
    color: #64748b;
    margin-bottom: 1rem;
}

.achievement-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: #2563eb;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Education Section */
.education {
    padding: 100px 0;
    background: #f8fafc;
}

.education h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

/* Dark Theme for Education */
body.dark-theme .education {
    background: #0f172a;
}

body.dark-theme .education h2 {
    color: #e2e8f0;
}

body.dark-theme .education-item {
    background: #1e293b;
    border: 1px solid #334155;
}

body.dark-theme .education-content h3 {
    color: #e2e8f0;
}

body.dark-theme .education-content h4 {
    color: #00d4ff;
}

body.dark-theme .education-content p {
    color: #94a3b8;
}

body.dark-theme .education-year {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: #0f172a;
}

.education h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.education-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #2563eb;
    transform: translateX(-50%);
}

.education-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.education-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.education-year {
    flex: 0 0 150px;
    background: #2563eb;
    color: white;
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    margin: 0 2rem;
}

.education-content {
    flex: 1;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.education-content h3 {
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.education-content h4 {
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.education-content p {
    color: #64748b;
}

/* Modern Contact Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.contact h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.contact-subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 4rem;
    opacity: 0.9;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    overflow: hidden;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.contact-details {
    flex: 1;
    min-width: 0;
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: white;
    font-weight: 600;
}

.contact-details span {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    word-break: break-all;
    overflow-wrap: break-word;
    display: block;
    line-height: 1.4;
}

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: white;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-info {
        gap: 1.5rem;
    }
    
    .contact-item {
        padding: 1rem;
        gap: 1rem;
        flex-direction: row;
        align-items: flex-start;
    }
    
    .contact-details {
        flex: 1;
    }
    
    .contact-details h4 {
        font-size: 1rem;
        margin-bottom: 0.3rem;
    }
    
    .contact-details span {
        font-size: 0.85rem;
        line-height: 1.3;
        word-break: break-word;
        overflow-wrap: anywhere;
    }
    
    .contact-icon {
        width: 45px;
        height: 45px;
        flex-shrink: 0;
    }
    
    .contact-icon i {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .contact {
        padding: 80px 0;
    }
    
    .contact h2 {
        font-size: 2.2rem;
        margin-bottom: 0.8rem;
    }
    
    .contact-subtitle {
        font-size: 1rem;
        margin-bottom: 3rem;
    }
    
    .contact-content {
        gap: 1.5rem;
    }
    
    .contact-info {
        gap: 1rem;
    }
    
    .contact-item {
        padding: 0.8rem;
        gap: 0.8rem;
        border-radius: 12px;
    }
    
    .contact-details h4 {
        font-size: 0.9rem;
        margin-bottom: 0.2rem;
    }
    
    .contact-details span {
        font-size: 0.8rem;
        line-height: 1.2;
    }
    
    .contact-icon {
        width: 40px;
        height: 40px;
    }
    
    .contact-icon i {
        font-size: 1rem;
    }
    
    .contact-form-container {
        padding: 1.5rem;
        border-radius: 12px;
    }
    
    .contact-form {
        gap: 1rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 12px;
        font-size: 0.9rem;
    }
    
    .contact-form .btn {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
}

/* Modern Contact Form */
.contact-form-container {
    background: rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: 20px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: none;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.9);
    color: #1e293b;
    font-size: 1rem;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: white;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

.contact-form .btn {
    align-self: flex-start;
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border: none;
    cursor: pointer;
    font-weight: 600;
    padding: 15px 35px;
    border-radius: 12px;
    transition: all 0.3s;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-form .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

/* Dark Theme for Contact */
body.dark-theme .contact {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

body.dark-theme .form-group input,
body.dark-theme .form-group textarea {
    background: rgba(30, 41, 59, 0.9);
    color: #e2e8f0;
}

body.dark-theme .form-group input:focus,
body.dark-theme .form-group textarea:focus {
    background: #1e293b;
    color: #e2e8f0;
    border-color: #00d4ff;
}

body.dark-theme .contact-form .btn {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
}

/* Modern Footer */
.footer {
    background: #0f172a;
    color: white;
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
    font-size: 1rem;
    margin: 0.5rem 0;
}

.footer-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.footer-link:hover {
    color: #764ba2;
    text-shadow: 0 0 10px rgba(102, 126, 234, 0.3);
}

.footer-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background: linear-gradient(45deg, #667eea, #764ba2);
    transition: width 0.3s;
}

.footer-link:hover::after {
    width: 100%;
}

.heart {
    color: #e74c3c;
    animation: heartbeat 1.5s ease-in-out infinite;
    display: inline-block;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

.copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 1rem 0;
}

/* Tools Section */
.tools {
    padding: 100px 0;
    background: #f8fafc;
}

.tools h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.tools h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.tool-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.tool-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.tool-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.tool-icon i {
    font-size: 2rem;
    color: white;
}

.tool-card:hover .tool-icon {
    transform: scale(1.1);
    background: linear-gradient(45deg, #2563eb, #7c3aed);
}

.tool-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.tool-card p {
    color: #64748b;
    font-size: 0.9rem;
}

/* Dark Theme for Tools */
body.dark-theme .tools {
    background: #0f172a;
}

body.dark-theme .tools h2 {
    color: #e2e8f0;
}

body.dark-theme .tools h2::after {
    background: #00d4ff;
}

body.dark-theme .tool-card {
    background: #1e293b;
    border-color: #334155;
}

body.dark-theme .tool-card h3 {
    color: #e2e8f0;
}

body.dark-theme .tool-card p {
    color: #94a3b8;
}

body.dark-theme .tool-icon {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
}

body.dark-theme .tool-card:hover .tool-icon {
    background: linear-gradient(45deg, #0099cc, #006699);
}

/* Dark Theme Footer */
body.dark-theme .footer {
    background: #020617;
    border-top-color: rgba(0, 212, 255, 0.2);
}

body.dark-theme .footer-link {
    color: #00d4ff;
}

body.dark-theme .footer-link:hover {
    color: #0099cc;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

body.dark-theme .footer-link::after {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
}

/* Responsive */
@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1.5rem;
    }
    
    .tool-card {
        padding: 1.5rem;
    }
    
    .tool-icon {
        width: 60px;
        height: 60px;
    }
    
    .tool-icon i {
        font-size: 1.5rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
    }
    
    .education-timeline::before {
        left: 20px;
    }
    
    .education-item {
        flex-direction: column !important;
        margin-left: 40px;
    }
    
    .education-year {
        margin: 0 0 1rem 0;
        align-self: flex-start;
    }
    
    .skills-grid,
    .projects-grid,
    .achievements-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.3rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .about h2,
    .skills h2,
    .projects h2,
    .achievements h2,
    .education h2,
    .contact h2 {
        font-size: 2rem;
    }
}

/* Dark Theme */
body.dark-theme {
    background: #0f172a;
    color: #e2e8f0;
}

body.dark-theme .navbar {
    background: rgba(15, 23, 42, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

body.dark-theme .nav-menu a {
    color: #e2e8f0;
}

body.dark-theme .hamburger span {
    background: #e2e8f0;
}

body.dark-theme .hero {
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
}

body.dark-theme .theme-toggle {
    border-color: #00d4ff;
    color: #00d4ff;
}

body.dark-theme .theme-toggle:hover {
    background: #00d4ff;
    color: #0f172a;
}

/* Profile Image */
.profile-image img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    animation: fadeInUp 1s ease 0.2s both;
}

.highlight {
    color: #fbbf24;
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.3);
}

.hero-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #00d4ff;
    font-weight: 400;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.8;
    line-height: 1.6;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.8s both;
}

.btn {
    padding: 15px 35px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn.primary {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: white;
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

.btn.secondary {
    background: transparent;
    color: #00d4ff;
    border: 2px solid #00d4ff;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 212, 255, 0.4);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    animation: fadeInUp 1s ease 1s both;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: all 0.3s;
    padding: 12px;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.1);
    border: 2px solid rgba(0, 212, 255, 0.3);
}

.social-links a:hover {
    background: #00d4ff;
    color: #0f0f23;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.4);
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8fafc;
}

.about h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.about h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #64748b;
    line-height: 1.8;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.contact-item i {
    font-size: 1.5rem;
    color: #2563eb;
}

/* Skills Section */
.skills {
    padding: 100px 0;
}

.skills h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.skills h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
    border-top: 4px solid #2563eb;
}

.skill-category:hover {
    transform: translateY(-10px);
}

.skill-icon {
    margin-bottom: 1.5rem;
}

.skill-icon i {
    font-size: 3rem;
    color: #2563eb;
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: #1e293b;
    font-size: 1.3rem;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    justify-content: center;
}

.skill-tag {
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    color: #3730a3;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s;
}

.skill-tag:hover {
    background: linear-gradient(135deg, #3730a3, #2563eb);
    color: white;
    transform: scale(1.05);
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: #f8fafc;
}

.projects h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.projects h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.project-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    border-top: 4px solid #2563eb;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-icon {
    margin-bottom: 1.5rem;
}

.project-icon i {
    font-size: 3rem;
    color: #2563eb;
}

.project-card h3 {
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 1.4rem;
}

.project-card p {
    margin-bottom: 1.5rem;
    color: #64748b;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.project-tech span {
    background: #e0e7ff;
    color: #3730a3;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.project-links {
    text-align: center;
}

.project-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1.5rem;
    border: 2px solid #2563eb;
    border-radius: 25px;
    transition: all 0.3s;
}

.project-link:hover {
    background: #2563eb;
    color: white;
}

/* Achievements Section */
.achievements {
    padding: 100px 0;
}

.achievements h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.achievements h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.achievement-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
    position: relative;
    border-top: 4px solid #fbbf24;
}

.achievement-card:hover {
    transform: translateY(-10px);
}

.achievement-icon i {
    font-size: 3rem;
    color: #fbbf24;
    margin-bottom: 1rem;
}

.achievement-card h3 {
    margin-bottom: 1rem;
    color: #1e293b;
    font-size: 1.2rem;
}

.achievement-card p {
    color: #64748b;
    margin-bottom: 1rem;
}

.achievement-badge {
    position: absolute;
    top: -10px;
    right: -10px;
    background: #2563eb;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Education Section */
.education {
    padding: 100px 0;
    background: #f8fafc;
}

.education h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
    color: #1e293b;
    position: relative;
}

.education h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #2563eb;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.education-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #2563eb;
    transform: translateX(-50%);
}

.education-item {
    display: flex;
    margin-bottom: 3rem;
    position: relative;
}

.education-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.education-year {
    flex: 0 0 150px;
    background: #2563eb;
    color: white;
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    margin: 0 2rem;
}

.education-content {
    flex: 1;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.education-content h3 {
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.education-content h4 {
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.education-content p {
    color: #64748b;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: #1e293b;
    color: white;
}

.contact h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 1rem;
    position: relative;
}

.contact h2::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: #fbbf24;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

.contact-subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    transition: all 0.3s;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.contact-icon {
    flex: 0 0 60px;
    height: 60px;
    background: #fbbf24;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon i {
    font-size: 1.5rem;
    color: #1e293b;
}

.contact-details h4 {
    margin-bottom: 0.5rem;
    color: #fbbf24;
}

/* Footer */
.footer {
    background: #0f172a;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
    }
    
    .education-timeline::before {
        left: 20px;
    }
    
    .education-item {
        flex-direction: column !important;
        margin-left: 40px;
    }
    
    .education-year {
        margin: 0 0 1rem 0;
        align-self: flex-start;
    }
    
    .skills-grid,
    .projects-grid,
    .achievements-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.3rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .about h2,
    .skills h2,
    .projects h2,
    .achievements h2,
    .education h2,
    .contact h2 {
        font-size: 2rem;
    }
}

/* Contact Form Styles */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-form-container {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    color: #1e293b;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: white;
    box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.3);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    align-self: flex-start;
    background: #fbbf24;
    color: #1e293b;
    border: none;
    cursor: pointer;
    font-weight: 600;
    padding: 15px 30px;
    border-radius: 10px;
    transition: all 0.3s;
}

.contact-form .btn:hover {
    background: #f59e0b;
    transform: translateY(-2px);
}

/* Floating Sidebar */
.floating-sidebar {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

.sidebar-item {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.sidebar-item.whatsapp {
    background: #25d366;
}

.sidebar-item.whatsapp:hover {
    background: #128c7e;
    transform: scale(1.1);
}

.sidebar-item.linkedin {
    background: #0077b5;
}

.sidebar-item.linkedin:hover {
    background: #005885;
    transform: scale(1.1);
}

.sidebar-item.gmail {
    background: #ea4335;
}

.sidebar-item.gmail:hover {
    background: #d33b2c;
    transform: scale(1.1);
}

/* Dark Theme for Contact Form */
body.dark-theme .form-group input,
body.dark-theme .form-group textarea {
    background: rgba(30, 41, 59, 0.9);
    color: #e2e8f0;
}

body.dark-theme .form-group input:focus,
body.dark-theme .form-group textarea:focus {
    background: #1e293b;
    color: #e2e8f0;
}

/* Responsive */
@media (max-width: 768px) {
    .contact-content {
 
       grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .floating-sidebar {
        right: 10px;
        gap: 10px;
 
   }
    
    .sidebar-item {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    .btn {
        max-width: 200px;
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
}