/* CSS Custom Properties for Theme Variables */
:root {
    /* Light Theme Colors */
    --primary-color: #2563eb;
    --secondary-color: #475569;
    --accent-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --purple-color: #8b5cf6;
    --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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --nav-height: 80px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Colors */
[data-theme="dark"] {
    --primary-color: #3b82f6;
    --secondary-color: #94a3b8;
    --accent-color: #60a5fa;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --purple-color: #8b5cf6;
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--background-color);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.8);
}

[data-theme="dark"] .nav {
    background-color: rgba(15, 23, 42, 0.8);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4);
    height: var(--nav-height);
}

.nav-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.nav-logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
    left: 0;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-2);
    cursor: pointer;
    font-size: var(--font-size-lg);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.theme-toggle:hover {
    background-color: var(--surface-color);
    transform: scale(1.05);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
    background: linear-gradient(135deg, var(--background-color) 0%, var(--surface-color) 50%, var(--background-color) 100%);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-8);
    max-width: 600px;
    margin: 0 auto;
}

.hero-name {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-4);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-8);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
}

.hero-buttons .btn {
    min-width: 140px;
    text-align: center;
}

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

.profile-pic-container {
    position: relative;
    width: min(220px, 70vw);
    height: min(220px, 70vw);
    max-width: 220px;
    max-height: 220px;
    border-radius: 50%;
    border: 4px solid var(--primary-color);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light, #60a5fa));
    overflow: hidden;
    animation: subtlePulse 3s ease-in-out infinite;
}

.profile-pic {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    transition: var(--transition);
    opacity: 0;
}

.profile-pic-container:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.2);
}

.profile-pic-container:hover .profile-pic {
    transform: scale(1.02);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

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

.contact-form .btn-primary {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    font-weight: 700;
}

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

.contact-form .btn-primary:hover {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px) scale(1.02);
}

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

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

.btn-tertiary {
    background-color: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
    opacity: 0.8;
}

.btn-tertiary:hover {
    opacity: 1;
    color: var(--text-primary);
    background-color: var(--surface-color);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Credibility Banner */
.credibility-banner {
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-6) 0;
}

.banner-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.banner-item {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.banner-divider {
    color: var(--text-secondary);
    font-weight: 400;
}

/* Section Styles */
section {
    padding: var(--spacing-20) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-12);
    color: var(--text-primary);
}

/* About Section */
.about {
    background: var(--surface-color);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 49%, rgba(59, 130, 246, 0.02) 50%, transparent 51%),
                linear-gradient(-45deg, transparent 49%, rgba(16, 185, 129, 0.02) 50%, transparent 51%);
    background-size: 60px 60px;
    pointer-events: none;
    opacity: 0.5;
}

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

.about-text {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-8);
}

.about-highlights {
    display: flex;
    gap: var(--spacing-6);
    margin-top: var(--spacing-6);
    align-items: stretch;
}

.highlight-item {
    text-align: center;
    padding: var(--spacing-4);
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 120px;
}

.highlight-item:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 25px -5px rgba(59, 130, 246, 0.15), 0 10px 10px -5px rgba(59, 130, 246, 0.04);
    border-color: rgba(59, 130, 246, 0.2);
}

.highlight-item strong {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-1);
}

.highlight-item:nth-child(1) strong { color: var(--primary-color); }
.highlight-item:nth-child(2) strong { color: var(--success-color); }
.highlight-item:nth-child(3) strong { color: var(--purple-color); }

.highlight-item span {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Tech Badges */
.tech-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-3);
    margin-top: var(--spacing-8);
}

.tech-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background-color: var(--background-color);
    color: var(--text-secondary);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tech-badge:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Brand-specific colors for better contrast */
.tech-badge:nth-child(1) .tech-icon { color: #777BB4; } /* PHP */
.tech-badge:nth-child(2) .tech-icon { color: #5FA04E; } /* Node.js */
.tech-badge:nth-child(3) .tech-icon { color: #2496ED; } /* Docker */
.tech-badge:nth-child(4) .tech-icon { color: #EA4B71; } /* n8n */
.tech-badge:nth-child(5) .tech-icon { color: #61DAFB; } /* React */
.tech-badge:nth-child(6) .tech-icon { color: #21759B; } /* WordPress */

.tech-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Tech Stack Section */
.tech-highlights {
    margin-top: var(--spacing-8);
    text-align: center;
}

.tech-stack-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

.tech-stack-section .tech-stack {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Currently Building Section */
.building-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-6);
}



.building-card {
    background-color: var(--surface-color);
    padding: var(--spacing-6);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    display: block;
    text-decoration: none;
    color: inherit;
}

/* Clickable card styles */
.building-card-clickable {
    cursor: pointer;
}

.building-card-clickable:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 20px 40px -10px rgba(59, 130, 246, 0.2), 0 10px 15px -5px rgba(59, 130, 246, 0.1);
    border-color: var(--primary-color);
    text-decoration: none;
    color: inherit;
}

/* Non-clickable card styles */
.building-card-non-clickable {
    cursor: default;
    opacity: 0.9;
}

.building-card-non-clickable:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--border-color);
}

.card-icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-4);
}

.building-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: var(--text-primary);
}

.building-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-3);
}

.tech-stack {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    font-weight: 600;
    padding: var(--spacing-2) var(--spacing-3);
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-3);
    text-align: center;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Card badges and external link icons */
.card-external-link {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    transition: var(--transition);
    font-weight: 600;
}

.building-card-clickable:hover .card-external-link {
    color: var(--primary-color);
    transform: translateX(2px) translateY(-2px);
}

.card-badge {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-1) var(--spacing-2);
    font-weight: 500;
}

/* Links Section */
.links {
    background-color: var(--surface-color);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
}

.link-card {
    background-color: var(--background-color);
    padding: var(--spacing-6);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: block;
    position: relative;
    cursor: pointer;
}

.link-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: var(--primary-color);
}

.link-icon {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-3);
}

.link-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.link-card p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2);
    line-height: 1.5;
}

.link-arrow {
    position: absolute;
    bottom: var(--spacing-4);
    right: var(--spacing-4);
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    font-weight: 600;
    opacity: 0.7;
    transition: var(--transition);
}

.link-card:hover .link-arrow {
    opacity: 1;
    transform: translateX(2px);
}

/* Contact Section */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-intro {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
}

.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-6);
    background-color: var(--surface-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    text-align: left;
}

.contact-icon {
    font-size: var(--font-size-lg);
    line-height: 1;
    flex-shrink: 0;
    margin-top: 2px;
}

.telegram-icon {
    width: 18px;
    height: 18px;
    color: #0088cc;
}

.contact-info {
    flex: 1;
}

.contact-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
    font-size: var(--font-size-sm);
}

.contact-info span:last-child {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.telegram-link {
    color: #0088cc;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.telegram-link:hover {
    color: #006699;
    text-decoration: underline;
}

.contact-form {
    background-color: var(--background-color);
    padding: var(--spacing-8);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--border-color);
    position: relative;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-form:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px -5px rgba(59, 130, 246, 0.1);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-3);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--surface-color);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background-color: var(--background-color);
}

.form-group textarea {
    resize: vertical;
    font-family: var(--font-family);
}


/* Mobile-only Floating CTA */
.mobile-floating-cta {
    position: fixed;
    bottom: 80px;
    right: 20px;
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    display: none;
}

/* Show only on mobile screens */
@media (max-width: 768px) {
    .mobile-floating-cta {
        display: block;
    }
}

.mobile-floating-cta.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.mobile-floating-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-radius: 50%;
    text-decoration: none;
    box-shadow: 0 8px 25px -5px rgba(59, 130, 246, 0.4);
    transition: var(--transition);
    border: none;
    /* Debug styles */
    position: relative;
    z-index: 1001;
}

.mobile-floating-btn:hover {
    transform: translateY(-2px) scale(1.1);
    box-shadow: 0 12px 35px -5px rgba(59, 130, 246, 0.5);
    text-decoration: none;
    color: white;
}

.mobile-floating-icon {
    font-size: 20px;
    line-height: 1;
}

/* Dark mode support */
[data-theme="dark"] .mobile-floating-btn {
    box-shadow: 0 8px 25px -5px rgba(59, 130, 246, 0.6);
}

[data-theme="dark"] .mobile-floating-btn:hover {
    box-shadow: 0 12px 35px -5px rgba(59, 130, 246, 0.7);
}

/* Footer */
.footer {
    background-color: var(--surface-color);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-8) 0;
}

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

.footer-links {
    display: flex;
    gap: var(--spacing-6);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }
.fade-in:nth-child(4) { animation-delay: 0.4s; }
.fade-in:nth-child(5) { animation-delay: 0.5s; }

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

@keyframes subtlePulse {
    0%, 100% {
        box-shadow: var(--shadow-lg);
        border-color: var(--primary-color);
    }
    50% {
        box-shadow: 0 15px 25px -5px rgba(59, 130, 246, 0.3), 0 10px 10px -5px rgba(59, 130, 246, 0.04);
        border-color: var(--accent-color);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .about-highlights {
        flex-direction: column;
        align-items: stretch;
    }
    
    .highlight-item {
        min-height: auto;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: var(--nav-height);
        flex-direction: column;
        background-color: var(--background-color);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: var(--spacing-6);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-name {
        font-size: var(--font-size-4xl);
    }
    
    .hero-title {
        font-size: var(--font-size-xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-3);
    }
    
    .profile-pic-container {
        width: min(220px, 60vw);
        height: min(220px, 60vw);
        border-width: 3px;
    }
    
    .building-grid,
    .links-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-3);
    }
    
    .hero-name {
        font-size: var(--font-size-3xl);
    }
    
    .hero-title {
        font-size: var(--font-size-lg);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .profile-pic-container {
        width: min(180px, 50vw);
        height: min(180px, 50vw);
        border-width: 2px;
    }
    
    .building-card,
    .link-card,
    .contact-form {
        padding: var(--spacing-4);
    }
}

/* Performance Optimizations */
.profile-pic {
    will-change: transform;
}

.building-card,
.link-card {
    will-change: transform;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    }
}