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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
    transition: opacity 0.5s ease;
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader {
    text-align: center;
}

.loader-circle {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.loader-text {
    color: white;
    font-size: 1.2rem;
    font-weight: 500;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loaded .loading-screen {
    opacity: 0;
    pointer-events: none;
}

.loaded header,
.loaded .hero,
.loaded .about,
.loaded .services,
.loaded .experience,
.loaded .contact,
.loaded footer {
    opacity: 1;
    transform: translateY(0);
}

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

/* Header Styles */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c3e50;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #3498db;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    display: flex;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: gradientShift 10s ease infinite;
}

@keyframes gradientShift {
    0% { background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%); }
    50% { background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%); }
    100% { background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%); }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="50" r="1.5" fill="rgba(255,255,255,0.08)"/><circle cx="80" cy="30" r="1" fill="rgba(255,255,255,0.05)"/></svg>');
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translateY(0) translateX(0); }
    50% { transform: translateY(-20px) translateX(10px); }
    100% { transform: translateY(0) translateX(0); }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 20px;
    font-size: 1rem;
    font-weight: 500;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: slideInDown 1s ease-out;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
    font-weight: 700;
    letter-spacing: -1px;
    animation: slideInDown 1s ease-out 0.2s both;
}

.hero-content h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    font-weight: 400;
    opacity: 0.9;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.85;
}

.btn {
    display: inline-block;
    background: white;
    color: #3498db;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #3498db, #2c3e50);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    color: white;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: #2c3e50;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: #555;
    line-height: 1.8;
}

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

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(45deg, #3498db, #2c3e50);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: 500;
}

/* Services Section */
.services {
    padding: 100px 0;
    background: white;
}

.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #2c3e50;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
    border: 1px solid #eee;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(52, 152, 219, 0.1) 100%);
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #3498db;
}

.service-card p {
    color: #666;
    line-height: 1.7;
}

/* Experience Section */
.experience {
    padding: 100px 0;
    background: #f8f9fa;
}

.experience h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #2c3e50;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #3498db, #2c3e50);
    transform: translateX(-50%);
    background-size: 200% 100%;
    animation: lineAnimation 3s linear infinite;
}

@keyframes lineAnimation {
    0% { background-position: 0% 0%; }
    100% { background-position: 200% 0%; }
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    width: 100%;
}

.timeline-item:nth-child(odd) .timeline-content {
    padding-right: calc(50% + 30px);
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    padding-left: calc(50% + 30px);
    text-align: left;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 20px;
    width: 20px;
    height: 20px;
    background: #3498db;
    border-radius: 50%;
    transform: translateX(-50%);
    border: 4px solid white;
    box-shadow: 0 0 0 4px #3498db;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(52, 152, 219, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(52, 152, 219, 0); }
    100% { box-shadow: 0 0 0 0 rgba(52, 152, 219, 0); }
}

.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.4rem;
}

.date {
    color: #3498db;
    font-weight: 600;
    margin-bottom: 15px;
    display: block;
}

.timeline-content p {
    color: #666;
    line-height: 1.7;
}

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

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: #2c3e50;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info .contact-item {
    margin-bottom: 30px;
}

.contact-info h3 {
    color: #3498db;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.contact-info p {
    color: #555;
    font-size: 1.1rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 2px solid #eee;
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #3498db;
}

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

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 30px 0;
}

footer p {
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-links a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.social-links a:hover {
    background: #3498db;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .hamburger span {
        width: 30px;
        height: 4px;
        margin: 6px 0;
    }
    
    .hamburger.toggle span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .hamburger.toggle span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.toggle span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.5s ease-in-out;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
        z-index: 1000;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
        opacity: 0;
        animation: fadeInUp 0.5s forwards;
    }
    
    .nav-links li:nth-child(1) { animation-delay: 0.1s; }
    .nav-links li:nth-child(2) { animation-delay: 0.2s; }
    .nav-links li:nth-child(3) { animation-delay: 0.3s; }
    .nav-links li:nth-child(4) { animation-delay: 0.4s; }
    
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
        margin-bottom: 10px;
        animation: slideInDown 1s ease-out 0.2s both;
    }
    
    .hero-content h2 {
        font-size: 1.4rem;
        margin-bottom: 20px;
    }
    
    .hero-content p {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 15px;
    }
    
    .about-text h2 {
        font-size: 2rem;
    }
    
    .timeline {
        margin: 0 15px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        padding-left: 50px;
        padding-right: 20px;
        text-align: left;
    }
    
    .timeline-marker {
        left: 20px;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 15px;
    }
    
    .contact-info {
        order: 2;
    }
    
    .contact-form {
        order: 1;
    }
    
    .services h2,
    .experience h2,
    .contact h2 {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .social-links {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .social-links a {
        padding: 8px 12px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    section {
        padding: 60px 0;
    }
}