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

:root {
    --primary-color: #0077b6;
    --secondary-color: #1877f2;
    --dark-color: #111;
    --light-color: #f4f4f4;
    --text-color: #333;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

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

/* Navigation */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 1px;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.nav-links a:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    animation: slideDown 0.6s ease;
}

.hero-content .subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: slideUp 0.6s ease;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeIn 0.8s ease 0.3s backwards;
}

.btn {
    padding: 12px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #005f96;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 119, 182, 0.3);
}

.btn-secondary {
    background-color: white;
    color: #667eea;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: transparent;
    color: white;
    transform: translateY(-3px);
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--light-color);
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.profile-section {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    margin-bottom: 3rem;
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--primary-color);
    flex-shrink: 0;
}

.bio-section h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.bio-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.bio-description {
    color: #666;
    line-height: 1.8;
    font-size: 1rem;
}

.about-content > p {
    font-size: 1.1rem;
    text-align: center;
    margin-bottom: 3rem;
    line-height: 1.8;
}

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

.highlight-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.highlight-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.highlight-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.highlight-card p {
    color: #666;
    font-size: 0.95rem;
}

/* Experience Section */
.experience {
    padding: 80px 0;
    background: white;
}

.experience h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
}

.timeline-item {
    margin-bottom: 3rem;
    position: relative;
    display: flex;
    gap: 2rem;
}

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

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-marker {
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    border: 4px solid white;
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 20px;
    z-index: 10;
}

.timeline-content {
    width: 50%;
    background: var(--light-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.timeline-content h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.timeline-content .company {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.timeline-content .timeline-date {
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.timeline-content .description {
    color: #666;
    line-height: 1.6;
}

/* Skills Section */
.skills {
    padding: 80px 0;
    background: var(--light-color);
}

.skills h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.skills-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-item {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.skill-item h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.skill-bar {
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 1s ease;
    animation: progressBar 1s ease forwards;
}

@keyframes progressBar {
    from {
        width: 0 !important;
    }
}

/* Gallery Section */
.gallery {
    padding: 80px 0;
    background: white;
}

.gallery h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    aspect-ratio: 1;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(102, 126, 234, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-overlay p {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

/* Profile Summaries Section */
.profiles {
    padding: 80px 0;
    background: var(--light-color);
}

.profiles h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.profiles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.profile-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.profile-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.profile-card-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    color: white;
}

.profile-card-icon.linkedin-icon {
    background-color: #0077b6;
}

.profile-card-icon.facebook-icon {
    background-color: #1877f2;
}

.profile-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.profile-text {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.profile-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    color: #444;
}

.profile-card li {
    margin-bottom: 0.75rem;
    font-size: 0.98rem;
}

.profile-card li strong {
    color: var(--primary-color);
}

.social h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.social-card {
    background: white;
    border: 2px solid var(--light-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.social-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 5px 20px rgba(0, 119, 182, 0.15);
    transform: translateY(-5px);
}

.social-icon {
    font-size: 3.5rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    color: white;
}

.linkedin-icon {
    background-color: #0077b6;
}

.facebook-icon {
    background-color: #1877f2;
}

.social-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.social-card p {
    color: #666;
    margin-bottom: 1.5rem;
}

.social-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.social-link:hover {
    gap: 0.8rem;
    color: var(--secondary-color);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-intro {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.contact-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-btn {
    padding: 15px 35px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    border: 2px solid white;
    color: white;
}

.linkedin-btn {
    background-color: #0077b6;
}

.linkedin-btn:hover {
    background-color: rgba(0, 119, 182, 0.8);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.facebook-btn {
    background-color: #1877f2;
}

.facebook-btn:hover {
    background-color: rgba(24, 119, 242, 0.8);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-socials {
    display: flex;
    gap: 1rem;
}

.footer-socials a {
    color: white;
    font-size: 1.3rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
}

.footer-socials a:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }

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

    .hero-content .subtitle {
        font-size: 1.2rem;
    }

    .hero {
        min-height: 400px;
        padding: 50px 0;
    }

    .about h2, .social h2, .contact h2, .experience h2, .skills h2, .gallery h2 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .contact-btn {
        width: 100%;
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
    }

    .profile-section {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-photo {
        width: 150px;
        height: 150px;
    }

    .timeline::before {
        left: 15px;
    }

    .timeline-item {
        flex-direction: column !important;
    }

    .timeline-marker {
        left: 15px;
    }

    .timeline-content {
        width: 100%;
        margin-left: 50px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .nav-links {
        gap: 0.5rem;
        font-size: 0.8rem;
    }

    .social-grid {
        grid-template-columns: 1fr;
    }

    .profile-highlights {
        grid-template-columns: 1fr;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}