/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    color: white;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 2rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeIn 1s ease 0.5s forwards;
}

.loading-subtitle {
    font-size: 0.9rem;
    opacity: 0.6;
    opacity: 0;
    animation: fadeIn 1s ease 1s forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Hide main content initially */
.main-container,
.navbar,
.footer {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.main-container.loaded,
.navbar.loaded,
.footer.loaded {
    opacity: 1;
}
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; }
/* Navigation */
.navbar { position: fixed; top: 0; right: 0; left: 0; background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, 0.2); z-index: 1000; padding: 1rem 2rem; }
.nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; }
.nav-logo { font-size: 1.5rem; font-weight: bold; background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #db2777 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; text-decoration: none; }
.nav-menu { display: flex; list-style: none; gap: 2rem; }
.nav-link { color: white; text-decoration: none; font-weight: 500; transition: all 0.3s ease; position: relative; }
.nav-link:hover { color: #007bff; transform: translateY(-2px); }
.nav-link.active { color: #007bff; }
.nav-link::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px; background: #007bff; transition: width 0.3s ease; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
/* Main Container */
.main-container { display: flex; min-height: 100vh; padding-top: 80px; gap: 2rem; max-width: 1200px; margin: 0 auto; padding-left: 2rem; padding-right: 2rem; }
/* Home Section */
.home-section {
    position: relative;
    width: 145%;
    height: 60vh;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    border-radius: 20px;
    margin-top: 80px;
    margin-bottom: 15rem;
    margin-left: -5%;
    margin-right: -15%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);

}
.home-content { position: relative; z-index: 2; }
.home-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: colorWave 3s ease-in-out infinite;
}
.home-content p { font-size: 1.2rem; margin-bottom: 2rem; }
.home-content a { padding: 0.75rem 1.5rem; background: #007bff; color: white; text-decoration: none; border-radius: 25px; transition: all 0.3s ease; }
.home-content a:hover { background: #0056b3; transform: translateY(-2px); }
/* Left Sidebar */
.sidebar { flex: 0 0 300px; background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(15px); border-radius: 20px; padding: 2rem; height: fit-content; position: sticky; top: 100px; border: 1px solid rgba(255, 255, 255, 0.2); z-index: 3; }
.profile-img-container { position: relative; width: 150px; height: 150px; margin: 0 auto 1rem; }
.profile-img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; border: 4px solid rgba(255, 255, 255, 0.3); display: block; transition: transform 0.3s ease; }
.profile-img:hover { transform: scale(1.05); }
.status-dot { position: absolute; bottom: 8px; right: 8px; width: 20px; height: 20px; background: #28a745; border-radius: 50%; border: 3px solid white; }
.status-dot:hover::after { content: 'Available for Hire'; position: absolute; top: -30px; left: 50%; transform: translateX(-50%); background: rgba(0, 0, 0, 0.8); color: white; padding: 5px 10px; border-radius: 5px; font-size: 0.8rem; white-space: nowrap; }
.profile-name { text-align: center; color: white; font-size: 1.5rem; font-weight: bold; margin-bottom: 0.5rem; }
.profile-title { text-align: center; color: #007bff; font-size: 1rem; margin-bottom: 2rem; min-height: 1.2em; }
.profile-info { color: white; margin-bottom: 2rem; }
.profile-info-item { display: flex; align-items: center; margin-bottom: 1rem; padding: 0.5rem; border-radius: 10px; transition: background 0.3s ease; }
.profile-info-item:hover { background: rgba(255, 255, 255, 0.1); }
.profile-info-item i { width: 20px; margin-right: 1rem; color: #007bff; }
.cv-download { display: block; text-align: center; margin-bottom: 1rem; }
.cv-download a { display: inline-flex; align-items: center; padding: 0.5rem 1rem; background: #007bff; color: white; text-decoration: none; border-radius: 25px; transition: all 0.3s ease; }
.cv-download a:hover { background: #0056b3; transform: translateY(-2px); }
.cv-download a i { margin-right: 0.5rem; }
.social-links { display: flex; justify-content: center; gap: 1rem; }
.social-link { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: rgba(255, 255, 255, 0.1); border-radius: 50%; color: white; text-decoration: none; transition: all 0.3s ease; }
.social-link:hover { background: #007bff; color: white; transform: translateY(-3px); }
/* Right Content */
.content { flex: 1; margin-bottom: 2rem; z-index: 2; }
.section { background: rgba(255, 255, 255, 0.95); border-radius: 20px; padding: 3rem; margin-bottom: 2rem; scroll-margin-top: 100px; animation: fadeIn 0.5s ease-in; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* Color Wave Animation for Welcome Text */
@keyframes colorWave {
    0% { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    25% { background: linear-gradient(135deg, #764ba2 0%, #667eea 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    50% { background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #db2777 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    75% { background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 50%, #667eea 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    100% { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
}
.section-title { font-size: 2.5rem; color: #333; margin-bottom: 2rem; position: relative; display: inline-block; }
.section-title::after { content: ''; position: absolute; bottom: -10px; left: 0; width: 60px; height: 4px; background: linear-gradient(to right, #667eea, #764ba2); border-radius: 2px; }
/* About Section */
.about-content { font-size: 1.1rem; line-height: 1.8; color: #555; margin-bottom: 2rem; }
/* Skills Section with Progress Bars */
.skills-container { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 2rem; }
.skills-category { background: rgba(255, 255, 255, 0.05); border-radius: 15px; padding: 2rem; border: 1px solid rgba(255, 255, 255, 0.1); }
.skills-category-title { font-size: 1.5rem; color: #ffffff; margin-bottom: 1.5rem; text-align: center; }
.skills-bar-container { margin-top: 1rem; }
.skill-bar-item { margin-bottom: 1.5rem; }
.skill-bar-label { font-weight: bold; margin-bottom: 0.5rem; color: #333; }
.skill-bar { background: #e9ecef; height: 10px; border-radius: 5px; overflow: hidden; }
.skill-bar-fill { background: linear-gradient(135deg, #667eea, #764ba2); height: 100%; width: 0; transition: width 1s ease-in-out; }
/* Education & Certifications */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: linear-gradient(to bottom, #667eea, #764ba2); }
.timeline-item { position: relative; margin-bottom: 2rem; padding: 1.5rem; background: #f8f9fa; border-radius: 15px; border-left: 4px solid #667eea; transition: opacity 0.5s ease, transform 0.5s ease; opacity: 1; }
.timeline-item.hidden { opacity: 0; display: none; }
.timeline-item:hover { transform: translateX(10px); }
.timeline-item::before { content: ''; position: absolute; left: -2.7rem; top: 1.5rem; width: 12px; height: 12px; background: #667eea; border-radius: 50%; border: 3px solid white; }
.timeline-date { color: #667eea; font-weight: bold; margin-bottom: 0.5rem; }
.timeline-title { font-size: 1.2rem; font-weight: bold; margin-bottom: 0.5rem; }
.timeline-subtitle { color: #666; margin-bottom: 1rem; }
.certification-image { width: 30vw; height: 20vw; object-fit: cover; border-radius: 10px; margin-bottom: 1rem; }
.certification-nav { display: flex; justify-content: center; gap: 1rem; margin-top: 2rem; }
.cert-nav-btn { background: #007bff; color: white; border: none; padding: 0.5rem 1rem; border-radius: 25px; cursor: pointer; transition: all 0.3s ease; }
.cert-nav-btn:hover { background: #0056b3; transform: translateY(-2px); }
.cert-nav-btn:disabled { background: #ccc; cursor: not-allowed; }
/* Projects */
.no-projects { text-align: center; color: #666; font-size: 1.2rem; margin-top: 2rem; }
/* Contact */
.contact-container { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 2rem; }
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-item { display: flex; align-items: center; padding: 1rem; background: #f8f9fa; border-radius: 10px; transition: all 0.3s ease; }
.contact-item:hover { background: #667eea; color: white; }
.contact-item i { font-size: 1.5rem; margin-right: 1rem; color: #667eea; width: 30px; }
.contact-item:hover i { color: white; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; }
.form-group label { margin-bottom: 0.5rem; font-weight: 500; color: #333; }
.form-group input, .form-group textarea { padding: 1rem; border: 2px solid #e9ecef; border-radius: 10px; font-size: 1rem; transition: border-color 0.3s ease; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: #667eea; }
.form-group textarea { resize: vertical; min-height: 120px; }
.submit-btn { background: linear-gradient(135deg, #667eea, #764ba2); color: white; border: none; padding: 1rem 2rem; border-radius: 25px; font-size: 1rem; cursor: pointer; transition: all 0.3s ease; }
.submit-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3); }
.confidentiality-text { font-size: 0.9rem; font-style: italic; color: #666; text-align: center; margin-top: 1rem; }
/* Mobile Responsiveness */
.mobile-menu-btn { display: none; background: none; border: none; color: white; font-size: 1.5rem; cursor: pointer; }
/* Theme Toggle Button */
.theme-toggle { background: rgba(255, 255, 255, 0.1); border: 2px solid rgba(255, 255, 255, 0.2); border-radius: 50px; cursor: pointer; padding: 0.5rem 1rem; margin-left: 1rem; transition: all 0.3s ease; display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; }
.theme-toggle:hover { background: rgba(255, 255, 255, 0.2); transform: scale(1.05); }
.theme-toggle i { font-size: 1rem; transition: transform 0.3s ease; }
/* Dark Mode Styles */
body.dark-mode { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); }
body.dark-mode .navbar { background: rgba(0, 0, 0, 0.3); border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
body.dark-mode .nav-logo, body.dark-mode .nav-link, body.dark-mode .profile-name, body.dark-mode .profile-info { color: #e0e0e0; }
body.dark-mode .theme-toggle { color: #e0e0e0; background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.2); }
body.dark-mode .sidebar { background: rgba(0, 0, 0, 0.3); border: 1px solid rgba(255, 255, 255, 0.1); }
body.dark-mode .profile-info-item i { color: #007bff; }
body.dark-mode .profile-title { color: #007bff; }
body.dark-mode .cv-download a { background: #007bff; }
body.dark-mode .cv-download a:hover { background: #0056b3; }
body.dark-mode .social-link:hover { background: #007bff; color: white; }
body.dark-mode .section { background: rgba(0, 0, 0, 0.5); color: #e0e0e0; }
body.dark-mode .section-title { color: #ffffff; }
body.dark-mode .about-content { color: #b0b0b0; }
body.dark-mode .timeline-item { background: rgba(255, 255, 255, 0.05); border-left-color: #007bff; color: #e0e0e0; }
body.dark-mode .timeline-subtitle { color: #a0a0a0; }
body.dark-mode .contact-item { background: rgba(255, 255, 255, 0.05); color: #e0e0e0; }
body.dark-mode .contact-item:hover { background: #667eea; color: white; }
body.dark-mode .form-group input, body.dark-mode .form-group textarea { background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.2); color: #e0e0e0; }
body.dark-mode .form-group input:focus, body.dark-mode .form-group textarea:focus { border-color: #667eea; background: rgba(255, 255, 255, 0.08); }
body.dark-mode .form-group label { color: #e0e0e0; }
body.dark-mode .nav-menu { background: rgba(0, 0, 0, 0.3); }
body.dark-mode .skill-bar-label { color: #e0e0e0; }
body.dark-mode .skills-category { background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.1); }
body.dark-mode .skills-category-title { color: #007bff; }
body.dark-mode .no-projects { color: #b0b0b0; }
body.dark-mode .confidentiality-text { color: #b0b0b0; }
body.dark-mode .cert-nav-btn { background: #007bff; }
body.dark-mode .cert-nav-btn:hover { background: #0056b3; }
body.dark-mode .cert-nav-btn:disabled { background: #666; }
/* Light Mode Styles */
body.light-mode { background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%); }
body.light-mode .navbar { background: rgba(255, 255, 255, 0.2); border-bottom: 1px solid rgba(255, 255, 255, 0.3); }
body.light-mode .nav-logo, body.light-mode .nav-link { color: #333; }
body.light-mode .theme-toggle { color: #333; background: rgba(0, 0, 0, 0.1); border-color: rgba(0, 0, 0, 0.2); }
body.light-mode .sidebar { background: rgba(255, 255, 255, 0.25); border: 1px solid rgba(255, 255, 255, 0.3); }
body.light-mode .profile-name { color: #333; }
body.light-mode .profile-info { color: #333; }
body.light-mode .profile-info-item i { color: #007bff; }
body.light-mode .profile-title { color: #007bff; }
body.light-mode .cv-download a { background: #007bff; }
body.light-mode .cv-download a:hover { background: #0056b3; }
body.light-mode .social-link { color: #333; }
body.light-mode .social-link:hover { background: #007bff; color: white; }
body.light-mode .section { background: rgba(255, 255, 255, 0.9); color: #333; }
body.light-mode .timeline-item { background: #ffffff; color: #333; }
body.light-mode .contact-item { background: #ffffff; color: #333; }
body.light-mode .no-projects { color: #666; }
body.light-mode .nav-menu { background: rgba(255, 255, 255, 0.2); }
body.light-mode .skill-bar-label { color: #333; }
body.light-mode .confidentiality-text { color: #666; }
body.light-mode .cert-nav-btn { background: #007bff; }
body.light-mode .cert-nav-btn:hover { background: #0056b3; }
body.light-mode .cert-nav-btn:disabled { background: #ccc; }
body.light-mode .skills-category-title { color: #333; }
body.light-mode .skills-category { border: 2px solid #ddd; }
body.light-mode .home-section { border: 2px solid #ddd; }

/* Light mode home section paragraph styling */
body.light-mode .home-content p {
    color: black;
}
/* Footer */
.footer { background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(15px); color: white; padding: 1rem; margin-top: 4rem; }
.footer-bottom { text-align: center; color: #888; }
.footer-bottom p { margin: 0.5rem 0; }
.footer-bottom a { color: #007bff; text-decoration: none; }
.footer-bottom a:hover { text-decoration: underline; }
body.light-mode .footer { background: rgba(255, 255, 255, 0.1); color: #333; }
body.light-mode .footer-bottom { color: #666; }
/* Tablet Responsiveness */
@media (max-width: 1024px) and (min-width: 769px) {
    .main-container { gap: 1.5rem; padding-left: 1.5rem; padding-right: 1.5rem; }
    .sidebar { flex: 0 0 250px; }
    .home-section { width: 120%; margin-left: -10%; margin-right: -10%; }
    .home-content h1 { font-size: 2.5rem; }
    .home-content p { font-size: 1.1rem; }
    .section { padding: 2rem; }
    .section-title { font-size: 2rem; }
    .skills-container { gap: 2rem; }
    .contact-container { gap: 2rem; }
    .certification-image { width: 40vw; height: 25vw; }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .nav-menu { position: fixed; top: 80px; left: -100%; width: 100%; height: calc(100vh - 80px); background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(10px); flex-direction: column; justify-content: start; padding-top: 2rem; transition: left 0.3s ease; }
    .nav-menu.active { left: 0; }
    .mobile-menu-btn { display: block; }
    .theme-toggle { margin-left: 0.5rem; margin-right: 0.5rem; }
    .theme-toggle span { display: none; }
    .main-container { flex-direction: column; padding-left: 1rem; padding-right: 1rem; gap: 1rem; }
    .sidebar { flex: none; position: static; margin-bottom: 2rem; padding: 1.5rem; }
    .profile-img-container { width: 120px; height: 120px; }
    .profile-name { font-size: 1.3rem; }
    .profile-title { font-size: 0.9rem; }
    .contact-container { grid-template-columns: 1fr; gap: 2rem; }
    .home-section {
        position: relative;
        top: auto;
        left: auto;
        transform: none;
        width: 100%;
        height: 50vh;
        min-height: 300px;
        margin-top: 60px;
        margin-bottom: 10rem;
        margin-left: 0;
        margin-right: 0;
    }
    .home-content h1 { font-size: 2rem; }
    .home-content p { font-size: 1rem; }
    .skills-container { grid-template-columns: 1fr; gap: 2rem; }
    .skills-category { padding: 1.5rem; }
    .skills-category-title { font-size: 1.3rem; }
    .certification-nav { flex-direction: column; gap: 0.5rem; }
    .section { padding: 2rem; margin-bottom: 1.5rem; }
    .section-title { font-size: 1.8rem; }
    .certification-image { width: 80vw; height: 50vw; max-width: 100%; }
    .timeline { padding-left: 1rem; }
    .timeline-item { padding: 1rem; }
    .form-group input, .form-group textarea { padding: 0.8rem; }
    .submit-btn { padding: 0.8rem 1.5rem; }
}

/* Small Mobile Responsiveness */
@media (max-width: 480px) {
    .navbar { padding: 0.8rem 1rem; }
    .nav-container { padding: 0; }
    .nav-logo { font-size: 1.3rem; }
    .main-container { padding-left: 0.5rem; padding-right: 0.5rem; }
    .sidebar { padding: 1rem; }
    .profile-img-container { width: 100px; height: 100px; }
    .profile-name { font-size: 1.2rem; }
    .profile-title { font-size: 0.8rem; }
    .profile-info-item { font-size: 0.9rem; }
    .home-content h1 { font-size: 1.8rem; }
    .home-content p { font-size: 0.9rem; }
    .section { padding: 1.5rem; }
    .section-title { font-size: 1.5rem; }
    .skills-category-title { font-size: 1.2rem; }
    .timeline-title { font-size: 1rem; }
    .timeline-subtitle { font-size: 0.9rem; }
    .contact-item { padding: 0.8rem; }
    .form-group label { font-size: 0.9rem; }
    .form-group input, .form-group textarea { font-size: 0.9rem; }
    .submit-btn { font-size: 0.9rem; padding: 0.8rem 1rem; }
    .certification-image { width: 90vw; height: 60vw; }
}