/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-logo a:hover {
    color: #4299e1;
}

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

.nav-link {
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: #4299e1;
    background-color: rgba(66, 153, 225, 0.1);
}

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

.bar {
    width: 25px;
    height: 3px;
    background-color: #4a5568;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 20px 40px;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: #ffd700;
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: #e2e8f0;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    color: #cbd5e0;
}

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

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn.primary {
    background-color: #4299e1;
    color: white;
}

.btn.primary:hover {
    background-color: #3182ce;
    transform: translateY(-2px);
}

.btn.secondary {
    background-color: transparent;
    color: #4299e1;
    border: 2px solid #4299e1;
}

.btn.secondary:hover {
    background-color: #4299e1;
    color: white;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.profile-picture {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-picture:hover {
    transform: scale(1.05);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.profile-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: none;
    align-items: center;
    justify-content: center;
    border: 4px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.profile-fallback.show {
    display: flex;
}

.profile-icon {
    font-size: 6rem;
}

/* Skills Section */
.skills {
    padding: 80px 0;
    background-color: #f7fafc;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: #2d3748;
}

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

.skill-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.skill-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #2d3748;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background-color: #e6fffa;
    color: #234e52;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid #81e6d9;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: #ffffff;
}

.about-content {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    color: #4a5568;
}

.experience, .education {
    margin-bottom: 3rem;
}

.experience h3, .education h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #2d3748;
    text-align: center;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #4299e1, #63b3ed);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 80px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 21px;
    top: 0;
    width: 18px;
    height: 18px;
    background-color: #4299e1;
    border: 4px solid white;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(66, 153, 225, 0.2);
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #4299e1;
}

.timeline-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.timeline-content h5 {
    font-size: 1.1rem;
    font-weight: 500;
    color: #4299e1;
    margin-bottom: 0.5rem;
}

.period {
    display: inline-block;
    background-color: #e6fffa;
    color: #234e52;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.timeline-content p {
    color: #4a5568;
    line-height: 1.6;
    margin: 0;
}

.education-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.education-item h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.education-item h5 {
    font-size: 1.1rem;
    font-weight: 500;
    color: #4299e1;
    margin-bottom: 0.5rem;
}

/* Projects Section */
.projects {
    padding: 80px 0;
    background-color: #f7fafc;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.project-card.featured {
    border: 2px solid #4299e1;
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder {
    font-size: 4rem;
    color: white;
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 0.75rem;
}

.project-content p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background-color: #e6fffa;
    color: #234e52;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid #81e6d9;
}

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

.project-link {
    color: #4299e1;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid #4299e1;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.project-link:hover {
    background-color: #4299e1;
    color: white;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: #2d3748;
    color: white;
}

.contact .section-title {
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-info > p {
    line-height: 1.6;
    margin-bottom: 2rem;
    color: #e2e8f0;
}

.contact-details {
    margin-bottom: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.contact-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-text a,
.contact-text span {
    color: #e2e8f0;
    text-decoration: none;
}

.contact-text a:hover {
    color: #4299e1;
}

.social-links h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #4299e1;
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form-container {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    color: #333;
}

.contact-form h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 2rem;
    text-align: center;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4299e1;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

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

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: linear-gradient(135deg, #3182ce 0%, #2c5aa0 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(66, 153, 225, 0.3);
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-status.success {
    background-color: #f0fff4;
    color: #22543d;
    border: 1px solid #9ae6b4;
    display: block;
}

.form-status.error {
    background-color: #fed7d7;
    color: #742a2a;
    border: 1px solid #fc8181;
    display: block;
}

/* Responsive Design */
@media (max-width: 480px) {
    .hero {
        padding: 100px 10px 60px;
        min-height: auto;
        overflow: hidden;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0;
        max-width: 100%;
    }

    .hero-content {
        text-align: center;
        padding: 0 10px;
        order: 2;
    }

    .hero-image {
        order: 1;
        display: flex;
        justify-content: center;
        margin-bottom: 1rem;
    }

    .hero-title {
        font-size: 1.6rem;
        line-height: 1.3;
        margin-bottom: 1rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .hero-description {
        font-size: 0.85rem;
        line-height: 1.4;
        margin-bottom: 1.5rem;
        padding: 0;
        text-align: center;
    }

    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 0.8rem;
        align-items: center;
        width: 100%;
    }

    .btn {
        width: 90%;
        max-width: 220px;
        padding: 12px 20px;
        font-size: 0.9rem;
        text-align: center;
    }

    .profile-container {
        width: 120px;
        height: 120px;
        margin: 0 auto;
    }

    .profile-picture,
    .profile-fallback {
        width: 120px;
        height: 120px;
    }

    .profile-icon {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

@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 {
        padding: 100px 20px 60px;
        min-height: auto;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
        padding: 0 10px;
    }

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
        margin-bottom: 2rem;
    }

    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
        margin-bottom: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
        margin-bottom: 1.5rem;
    }

    .hero-description {
        font-size: 1rem;
        margin-bottom: 2rem;
        padding: 0 10px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }

    .profile-container {
        width: 200px;
        height: 200px;
        margin: 0 auto;
    }

    .profile-picture {
        width: 200px;
        height: 200px;
    }

    .profile-fallback {
        width: 200px;
        height: 200px;
    }

    .profile-icon {
        font-size: 4rem;
    }

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

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        padding-left: 60px;
    }

    .timeline-item::before {
        left: 11px;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}