/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* Navigation */
.navbar {
    background-color: #2d5a2d;
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    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 h2 {
    color: #4CAF50;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    margin-left: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover,
.nav-link.active {
    color: #4CAF50;
}

/* Hamburger Menu */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

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

/* Main Content */
main {
    margin-top: 80px;
}

/* Hero Section */
.hero,
.contact-hero,
.about-hero,
.projects-hero {
    background: linear-gradient(135deg, #2d5a2d 0%, #4CAF50 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero-content,
.contact-intro,
.about-intro,
.projects-intro {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero h1,
.contact-hero h1,
.about-hero h1,
.projects-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.highlight {
    color: #90EE90;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #e0e0e0;
}

.hero-description,
.contact-intro,
.about-intro,
.projects-intro {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    color: #f0f0f0;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 30px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: #4CAF50;
    color: white;
}

.btn-primary:hover {
    background-color: #45a049;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: white;
    color: #2d5a2d;
}

.project-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 8px 16px;
    background-color: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.project-btn:hover {
    background-color: #45a049;
}

/* Accessibility Focus Styles */
.btn:focus,
.project-btn:focus,
input:focus,
textarea:focus,
a:focus {
    outline: 2px solid #4CAF50;
    outline-offset: 2px;
}

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

.skills h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2d5a2d;
}

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

.skill-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    border: 2px solid #e0e0e0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: #4CAF50;
}

.skill-card h3 {
    color: #2d5a2d;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.skill-card p {
    color: #666;
    line-height: 1.6;
}

/* Featured Projects */
.featured-projects {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.featured-projects h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2d5a2d;
}

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

.project-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
}

.project-card h3 {
    color: #2d5a2d;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.project-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-link {
    color: #4CAF50;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    color: #45a049;
}

/* About Page Styles */
.about-content {
    padding: 80px 0;
    background-color: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h2 {
    color: #2d5a2d;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-details h3 {
    color: #2d5a2d;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.about-details h3:first-child {
    margin-top: 0;
}

.education-item,
.experience-item {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #4CAF50;
}

.education-item h4,
.experience-item h4 {
    color: #2d5a2d;
    margin-bottom: 0.5rem;
}

.education-item p,
.experience-item p {
    color: #666;
    margin-bottom: 0.5rem;
}

/* Certifications Section */
.certifications {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.certifications h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2d5a2d;
}

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

.cert-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.cert-item h3 {
    color: #2d5a2d;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.cert-item p {
    color: #666;
}

/* Projects Page Styles */
.projects-content {
    padding: 80px 0;
    background-color: white;
}

.project-detail-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    margin-bottom: 3rem;
    border: 1px solid #e0e0e0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-detail-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.project-header h2 {
    color: #2d5a2d;
    font-size: 1.8rem;
    margin: 0;
}

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

.project-description {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.project-tech {
    margin-bottom: 2rem;
}

.tech-tag {
    display: inline-block;
    background: #4CAF50;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

.project-features h3 {
    color: #2d5a2d;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.project-features ul {
    list-style-type: none;
    padding-left: 0;
}

.project-features li {
    color: #666;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.project-features li:before {
    content: "✓";
    color: #4CAF50;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Contact Page Styles */
.contact-content {
    padding: 80px 0;
    background-color: white;
}

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

.contact-form h2 {
    color: #2d5a2d;
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.contact-details h3 {
    color: #2d5a2d;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-details p {
    color: #666;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #2d5a2d;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4CAF50;
}

.form-group textarea {
    resize: vertical;
}

.form-group input.error,
.form-group textarea.error {
    border-color: #ff4d4d;
}

.contact-link {
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 12px 24px;
    border: 2px solid white;
    border-radius: 5px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-link:hover {
    background-color: white;
    color: #2d5a2d;
    transform: translateY(-2px);
}

/* Get In Touch Section */
.contact {
    background: linear-gradient(135deg, #2d5a2d 0%, #4CAF50 100%);
    padding: 80px 0;
    color: white;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.contact-info a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 12px 24px;
    border: 2px solid white;
    border-radius: 5px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-info a:hover {
    background-color: white;
    color: #2d5a2d;
    transform: translateY(-2px);
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: white;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #4CAF50;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #2d5a2d;
        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;
    }

    .nav-item {
        margin: 1rem 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero h1,
    .contact-hero h1,
    .about-hero h1,
    .projects-hero h1 {
        font-size: 2.5rem;
    }

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

    .skills-grid,
    .projects-grid,
    .cert-grid,
    .contact-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .project-links {
        width: 100%;
        justify-content: flex-start;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .hero h1,
    .contact-hero h1,
    .about-hero h1,
    .projects-hero h1 {
        font-size: 2rem;
    }

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

    .hero-description,
    .contact-intro,
    .about-intro,
    .projects-intro {
        font-size: 1rem;
    }

    .project-detail-card {
        padding: 1.5rem;
    }

    .project-header h2 {
        font-size: 1.5rem;
    }

    .tech-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
}

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

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.hero-content,
.contact-intro,
.about-intro,
.projects-intro {
    animation: fadeInUp 0.8s ease-out;
}

.skill-card,
.project-card,
.project-detail-card,
.cert-item {
    animation: fadeInUp 0.6s ease-out;
}

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