/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Header styles */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 300;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #ffd700;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 6rem 2rem;
    position: relative;
    overflow: hidden;
}

.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"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 300;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.tagline {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 300;
}

.cta-button {
    display: inline-block;
    background: #ffd700;
    color: #333;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    background: #ffed4e;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Main content styles */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    margin-bottom: 3rem;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

section:hover {
    transform: translateY(-5px);
}

section h2 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 2rem;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

section p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
}

/* About Section */
.about-section {
    padding: 3rem 2rem;
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

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

.headshot {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #667eea;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1rem;
}

/* Projects Section */
.projects-section {
    padding: 3rem 2rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    margin-top: 2rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.project-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 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 8px 25px rgba(0,0,0,0.15);
}

.project-image {
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    color: #667eea;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.project-content p {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: #764ba2;
}

/* Contact Section */
.contact-section {
    padding: 3rem 2rem;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e1e5e9;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.error-message {
    color: #e74c3c;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

.submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
    width: 100%;
}

.submit-btn:hover {
    transform: translateY(-2px);
}

/* Footer styles */
footer {
    background: #333;
    color: white;
    padding: 2rem;
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.social-links a {
    color: white;
    font-size: 1.5rem;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
    display: inline-block;
}

.social-links a:hover {
    background: #667eea;
    transform: translateY(-2px);
}

/* Responsive design - 600px breakpoint */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
    
    .hero {
        padding: 4rem 1rem;
    }
    
    main {
        padding: 1rem;
    }
    
    section {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }
    
    section h2 {
        font-size: 1.4rem;
    }
    
    section p {
        font-size: 1rem;
    }
    
    /* About section responsive */
    .about-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
    }
    
    .headshot {
        width: 180px;
        height: 180px;
    }
    
    .about-section {
        padding: 2rem 1rem;
    }
    
    /* Projects grid responsive */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        max-width: 100%;
    }
    
    .project-content {
        padding: 1rem;
    }
    
    .project-content h3 {
        font-size: 1.2rem;
    }
    
    /* Contact form responsive */
    .contact-section {
        padding: 2rem 1rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    /* Footer responsive */
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .social-links a {
        font-size: 1.3rem;
        padding: 0.4rem;
    }
}

/* Responsive design - 900px breakpoint */
@media (min-width: 601px) and (max-width: 900px) {
    header h1 {
        font-size: 2.2rem;
    }
    
    .hero h2 {
        font-size: 3rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    .hero {
        padding: 5rem 2rem;
    }
    
    main {
        padding: 1.5rem;
    }
    
    section {
        padding: 2rem;
    }
    
    section h2 {
        font-size: 1.8rem;
    }
    
    /* About section responsive */
    .about-container {
        gap: 2rem;
    }
    
    .headshot {
        width: 220px;
        height: 220px;
    }
    
    /* Projects grid responsive */
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    /* Footer responsive */
    .footer-content {
        gap: 1.5rem;
    }
}

/* Responsive design - 768px breakpoint (existing) */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero h2 {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.1rem;
    }
    
    main {
        padding: 1rem;
    }
    
    section {
        padding: 1.5rem;
    }
    
    section h2 {
        font-size: 1.5rem;
    }
    
    /* About section responsive */
    .about-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .headshot {
        width: 200px;
        height: 200px;
    }
    
    /* Projects grid responsive */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    /* Footer responsive */
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
}

@media (min-width: 1025px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
        max-width: 1200px;
    }
}

/* Additional utility classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

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

.mb-2 {
    margin-bottom: 2rem;
}