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

/* Prevent scrolling only on the magnetic field canvas */
#magneticField {
    touch-action: none;
    overscroll-behavior: none;
}

:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #64748b;
    --background-color: #ffffff;
    --surface-color: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark theme variables */
[data-theme="dark"] {
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    user-select: none; /* Prevent text selection by default */
}

.magnetic-field {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.3;
    transition: opacity 0.3s ease;
}

.magnetic-field:hover {
    opacity: 0.4;
}

/* Dark theme adjustments */
[data-theme="dark"] .magnetic-field {
    opacity: 0.4;
}

[data-theme="dark"] .magnetic-field:hover {
    opacity: 0.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
}

/* Header styles */
.header {
    text-align: center;
    padding: 4rem 0 2rem;
    animation: fadeInDown 0.8s ease-out;
}

.title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* Main content */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    width: 100%;
}

/* About page specific main content */
.about-page .main-content {
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
    max-width: 100%;
}

.card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow);
    max-width: 500px;
    width: 100%;
    animation: fadeInUp 0.8s ease-out 0.4s both;
    transition: var(--transition);
    user-select: text; /* Allow text selection on cards */
}

/* About page specific card styles */
.about-page .card {
    max-width: 100%;
    text-align: left;
    padding: 2rem;
    width: 100%;
    box-sizing: border-box;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--surface-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.contact-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: var(--transition);
    border: 1px solid transparent;
}

.contact-link:hover {
    color: var(--primary-color);
    background: var(--surface-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Navigation */
.navigation {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease-out 0.1s both;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--surface-color);
}

.nav-link.active {
    color: var(--primary-color);
    background: var(--surface-color);
}

/* Bio page specific styles */
.bio-intro {
    margin-bottom: 1rem;
}

.bio-intro p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.experience-item,
.education-item,
.project-item {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.experience-item:last-child,
.education-item:last-child,
.project-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.experience-item h3,
.education-item h3,
.project-item h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.experience-item h4,
.education-item h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 500;
    margin: 1rem 0 0.5rem 0;
}

.experience-item p,
.education-item p,
.project-item p {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.experience-item ul,
.education-item ul {
    margin: 0.75rem 0;
    padding-left: 1.5rem;
}

.experience-item li,
.education-item li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

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

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

/* Responsive design */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .card {
        padding: 2.5rem;
    }
    
    .about-page .card {
        padding: 1.75rem;
    }
}

@media (max-width: 800px) {
    .container {
        padding: 0 1.25rem;
    }
    
    .header {
        padding: 3rem 0 1.5rem;
    }
    
    .title {
        font-size: clamp(2rem, 4vw, 3rem);
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .main-content {
        padding: 1.5rem 0;
    }
    
    .about-page .main-content {
        gap: 1.5rem;
    }
    
    .card {
        padding: 2rem;
    }
    
    .about-page .card {
        padding: 1.5rem;
    }
    
    .card h2 {
        font-size: 1.75rem;
    }
    
    .card p {
        font-size: 1.05rem;
    }
    
    .experience-item h3,
    .education-item h3,
    .project-item h3 {
        font-size: 1.2rem;
    }
    
    .experience-item h4,
    .education-item h4 {
        font-size: 1rem;
    }
    
    .experience-item,
    .education-item,
    .project-item {
        margin-bottom: 1.75rem;
        padding-bottom: 1.75rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 200px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .header {
        padding: 2rem 0 1rem;
    }
    
    .card {
        padding: 1.75rem;
        margin: 0 0.5rem;
    }
    
    .about-page .card {
        padding: 1.25rem;
        margin: 0;
    }
    
    .navigation {
        gap: 1rem;
    }
    
    .nav-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .header {
        padding: 1.5rem 0 1rem;
    }
    
    .title {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 0.95rem;
    }
    
    .card {
        padding: 1.5rem;
        margin: 0 0.25rem;
    }
    
    .about-page .card {
        padding: 1rem;
        margin: 0;
    }
    
    .card h2 {
        font-size: 1.4rem;
        margin-bottom: 0.75rem;
    }
    
    .card p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }
    
    .bio-intro p {
        font-size: 1rem;
    }
    
    .experience-item h3,
    .education-item h3,
    .project-item h3 {
        font-size: 1.1rem;
    }
    
    .experience-item h4,
    .education-item h4 {
        font-size: 0.95rem;
    }
    
    .experience-item,
    .education-item,
    .project-item {
        margin-bottom: 1.5rem;
        padding-bottom: 1.5rem;
    }
    
    .experience-item ul,
    .education-item ul {
        padding-left: 1.25rem;
    }
    
    .experience-item li,
    .education-item li {
        font-size: 0.9rem;
    }
}