/* Root variables for layout */
:root {
    /* Color variables */
    --bg-primary: #ffffff;
    --bg-secondary: rgba(248, 250, 252, 1.0);
    --bg-accent: rgba(241, 245, 249, 0.95);
    --text-primary: #000000;
    --accent-purple: #333333;
    --accent-cyan: #555555;
    --hover-purple: #222222;
    --progress-fill: #666666;
    --shadow-color: rgba(0, 0, 0, 0.1);
    
    /* Layout and animation variables */
    --transition-duration: 0.3s;
    --transition-easing: ease;
    --font-family-base: 'Arial', sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
    --border-radius-base: 0.5rem;
    --shadow-base: 0 2px 4px var(--shadow-color);
    --shadow-hover: 0 4px 8px var(--shadow-color);
    --shadow-large: 0 10px 20px var(--shadow-color);
    
    /* Grid layout variables */
    --grid-template-columns-skills: repeat(auto-fit, minmax(200px, 1fr));
    --grid-template-columns-projects: repeat(auto-fit, minmax(250px, 1fr));
    --grid-template-columns-languages: repeat(auto-fit, minmax(150px, 1fr));
    
    /* Status color variables */
    --error-color: #ef4444;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
}

/* Typography styling */
h1, h2, h3 {
    font-weight: 700;
    color: #000000;
}

p {
    font-weight: 500;
    color: #222222;
}

/* Firefly styling */
.firefly {
    opacity: 0.8;
    background-color: #333333;
}

/* Card borders */
.card {
    border: 1px solid rgba(0, 0, 0, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Base body styling */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    transition: background-color var(--transition-duration) var(--transition-easing), color var(--transition-duration) var(--transition-easing);
}

/* Firefly container positioning */
.firefly-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* Individual firefly base style */
.firefly {
    position: absolute;
    width: 3px;
    height: 3px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    opacity: 0.5;
    animation: firefly-move 10s infinite linear;
    transition: background-color var(--transition-duration) var(--transition-easing);
}

/* Firefly movement keyframes */
@keyframes firefly-move {
    0% { transform: translate(0, 0); opacity: 0.3; }
    50% { opacity: 0.7; }
    100% { transform: translate(calc(var(--rand-x) * 1vw), calc(var(--rand-y) * 1vh)); opacity: 0.3; }
}

/* Firefly lifecycle: appear → brighten → fade → disappear */
@keyframes firefly-lifecycle {
    0% { opacity: 0; }
    10% { opacity: 0.1; }
    20% { opacity: 0.3; }
    30% { opacity: 0.5; }
    40% { opacity: 0.7; }
    50% { opacity: 0.9; }
    60% { opacity: 0.7; }
    70% { opacity: 0.5; }
    80% { opacity: 0.3; }
    90% { opacity: 0.1; }
    100% { opacity: 0; }
}

/* 21-second brightness variations during visible period */
@keyframes firefly-fade-dark {
    0% { opacity: 0.1; }
    50% { opacity: 0.9; }
    100% { opacity: 0.1; }
}

@keyframes firefly-fade-light {
    0% { opacity: 0.9; }
    50% { opacity: 0.1; }
    100% { opacity: 0.9; }
}

@keyframes firefly-pulse-dark {
    0% { opacity: 0.5; }
    25% { opacity: 0.1; }
    50% { opacity: 0.05; }
    75% { opacity: 0.1; }
    100% { opacity: 0.5; }
}

@keyframes firefly-pulse-light {
    0% { opacity: 0.2; }
    25% { opacity: 0.6; }
    50% { opacity: 1.0; }
    75% { opacity: 0.6; }
    100% { opacity: 0.2; }
}

@keyframes firefly-fade-bold {
    0% { opacity: 0.1; }
    20% { opacity: 0.9; }
    40% { opacity: 0.2; }
    60% { opacity: 0.8; }
    80% { opacity: 0.1; }
    100% { opacity: 0.1; }
}

/* Navbar base styling */
.navbar {
    background-color: var(--bg-secondary);
    box-shadow: var(--shadow-base);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
    height: 80px;
    display: flex;
    align-items: center;
    transition: background-color var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing);
}

/* Navbar heading style */
.navbar h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: color var(--transition-duration) var(--transition-easing);
}

/* Navbar list layout */
.navbar ul {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* Navbar link style */
.navbar a {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: transform 0.1s ease;
    outline: none;
}

/* Navbar link hover effect */
.navbar a:hover {
    transform: scale(1.05);
}

/* Navbar link active effect */
.navbar a:active {
    transform: scale(0.95);
}

/* Remove focus outline */
.navbar a:focus {
    outline: none;
}

/* Section background styling */
.section-bg {
    background-color: var(--bg-accent);
    border-radius: var(--border-radius-base);
    padding: 2rem;
    box-shadow: var(--shadow-base);
    margin: 1rem;
    backdrop-filter: blur(10px);
    transition: background-color var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing), transform var(--transition-duration) var(--transition-easing);
}

/* Card base styling */
.card {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-base);
    padding: 1.5rem;
    box-shadow: var(--shadow-base);
    position: relative;
    backdrop-filter: blur(10px);
    transition: transform var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing);
}

/* Card hover effect */
.card:hover {
    transform: none;
    box-shadow: var(--shadow-base);
}

/* Card heading style */
.card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    transition: color var(--transition-duration) var(--transition-easing);
}

/* Card paragraph style */
.card p {
    font-size: 1rem;
    color: var(--text-primary);
    opacity: 0.9;
    transition: color var(--transition-duration) var(--transition-easing);
}

/* Progress bar container */
.progress-bar {
    background-color: var(--bg-primary);
    height: 0.5rem;
    border-radius: 9999px;
    overflow: hidden;
    transition: background-color var(--transition-duration) var(--transition-easing);
}

.progress-bar {
    background-color: #f8f9fa;
    border: 1px solid rgba(0, 0, 0, 0.2);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Progress fill bar */
.progress-fill {
    background-color: var(--progress-fill);
    height: 100%;
    border-radius: 9999px;
    width: 0;
    transition: width 1s ease-in-out, background-color var(--transition-duration) var(--transition-easing);
    --progress-width: 0%;
}

.progress-fill {
    background: linear-gradient(90deg, #666666 0%, #999999 50%, #cccccc 100%);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

/* Download button styling */
.download-btn {
    background-color: var(--accent-purple);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-base);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: background-color var(--transition-duration) var(--transition-easing), transform var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing);
}

.download-btn {
    background-color: #000000 !important;
    color: #ffffff !important;
    border: 1px solid #000000;
    transition: transform 0.1s ease;
    outline: none;
    font-weight: 600;
}

.download-btn i {
    color: #ffffff !important;
}

.download-btn:hover {
    transform: scale(1.05);
}

.download-btn:active {
    transform: scale(0.95);
}

.download-btn:focus {
    outline: none;
}

/* Download button hover */
.download-btn:hover {
    background-color: var(--hover-purple);
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* Theme toggle button */
#theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    transition: transform var(--transition-duration) var(--transition-easing);
}

/* Theme toggle icon */
#theme-toggle i {
    color: var(--text-primary);
    font-size: 1.25rem;
    transition: color var(--transition-duration) var(--transition-easing), transform var(--transition-duration) var(--transition-easing);
}

/* Theme toggle hover icon */
#theme-toggle:hover i {
    transform: scale(1.2);
}

/* Input and textarea base */
input, textarea {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--accent-purple);
    border-radius: var(--border-radius-base);
    padding: 0.5rem;
    width: 100%;
    transition: border-color 0.2s var(--transition-easing), background-color var(--transition-duration) var(--transition-easing), color var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing);
}

/* Input and textarea focus */
input:focus, textarea:focus {
    border-color: var(--hover-purple);
    outline: none;
    box-shadow: 0 0 0 2px var(--accent-cyan);
}

/* Error border class */
.border-red-500 {
    border-color: var(--error-color) !important;
}

/* Form error placeholder styling */
input.error::placeholder,
textarea.error::placeholder {
    color: var(--error-color) !important;
    opacity: 1 !important;
}

/* Success button styling */
button[type="submit"].success {
    background-color: var(--success-color) !important;
    color: #ffffff !important;
}

/* Submit button styling */
button[type="submit"] {
    background-color: var(--accent-purple);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-base);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-duration) var(--transition-easing), transform var(--transition-duration) var(--transition-easing), box-shadow var(--transition-duration) var(--transition-easing);
}

button[type="submit"] {
    background-color: #000000;
    color: #ffffff;
    border: 1px solid #000000;
    transition: transform 0.1s ease;
    outline: none;
}

button[type="submit"]:hover {
    transform: scale(1.05);
}

button[type="submit"]:active {
    transform: scale(0.95);
}

button[type="submit"]:focus {
    outline: none;
}

/* Submit button hover */
button[type="submit"]:hover {
    background-color: var(--hover-purple);
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

/* Social icon base */
.social-icon {
    color: var(--text-primary);
    font-size: 1.5rem;
    transition: transform 0.2s var(--transition-easing), color 0.2s var(--transition-easing);
}

/* Social icon hover */
.social-icon:hover {
    color: var(--hover-purple);
    transform: scale(1.1);
}

/* Fade-in animation class */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s var(--transition-easing), transform 0.5s var(--transition-easing);
}

/* Visible state for fade-in */
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Global headings transition */
h1, h2, h3 {
    color: var(--text-primary);
    transition: color var(--transition-duration) var(--transition-easing);
}

/* H1 specific style */
h1 {
    font-size: 1.875rem;
    font-weight: 700;
}

/* H2 specific style */
h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

/* H3 specific style */
h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Paragraph transition */
p {
    font-size: 1rem;
    color: var(--text-primary);
    opacity: 0.9;
    transition: color var(--transition-duration) var(--transition-easing);
}

/* Link base style */
a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color 0.2s var(--transition-easing), transform 0.2s var(--transition-easing);
}

/* Link hover */
a:hover {
    color: var(--hover-purple);
    transform: scale(1.05);
}

/* Footer base */
footer {
    background-color: var(--bg-secondary);
    padding: 1rem 0;
    text-align: center;
    transition: background-color var(--transition-duration) var(--transition-easing);
}

/* Footer paragraph */
footer p {
    font-size: 0.875rem;
    color: var(--text-primary);
    opacity: 0.8;
    transition: color var(--transition-duration) var(--transition-easing);
}

/* Footer copyright */
footer p:first-child {
    font-weight: 500;
}

/* Footer tech note */
footer p:last-child {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* Hero section specific */
#hero {
    padding-top: 5rem;
    padding-bottom: 5rem;
    text-align: center;
}

/* Hero card styling */
#hero.section-bg {
    border: 1px solid rgba(0, 0, 0, 0.1);
}

#hero.section-bg {
    border: 1px solid rgba(0, 0, 0, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Hero heading */
#hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Hero paragraph */
#hero p {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

/* About section padding */
#about {
    padding: 4rem 0;
}

/* About card styling */
#about.section-bg {
    border: 1px solid rgba(0, 0, 0, 0.1);
}

#about.section-bg {
    border: 1px solid rgba(0, 0, 0, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* About heading */
#about h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

/* About paragraphs */
#about p {
    margin-bottom: 1rem;
}

/* Skills grid */
#skills .grid {
    display: grid;
    grid-template-columns: var(--grid-template-columns-skills);
    gap: 1.5rem;
}

/* Projects grid */
#projects .grid {
    display: grid;
    grid-template-columns: var(--grid-template-columns-projects);
    gap: 1.5rem;
}

/* Languages grid */
#languages .grid {
    display: grid;
    grid-template-columns: var(--grid-template-columns-languages);
    gap: 1.5rem;
}

/* Contact form max width */
#contact-form {
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

/* Contact label */
#contact label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

/* Contact social flex */
#contact .flex {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

/* Utility Classes */
.container {
    max-width: 1024px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.text-center { text-align: center; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.inline-block { display: inline-block; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-full { border-radius: 9999px; }
.overflow-hidden { overflow: hidden; }
.w-full { width: 100%; }
.h-2 { height: 0.5rem; }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }

/* Flex utilities */
.flex { display: flex; }
.flex.justify-between { justify-content: space-between; }
.flex.items-center { align-items: center; }
/* Navbar spacing */
.navbar ul {
    gap: 2rem;
}

.navbar ul li {
    white-space: nowrap;
}

@media (min-width: 1024px) {
    .navbar ul {
        gap: 3rem;
    }
}

@media (min-width: 1280px) {
    .navbar ul {
        gap: 4rem;
    }
}

.space-x-6 > * + * { margin-left: 1.5rem; }

/* Spacing utilities */
.py-16 { padding-top: 4rem; padding-bottom: 4rem; }
.py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-8 { margin-top: 2rem; }

/* Text utilities */
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-sm { font-size: 0.875rem; }
.text-right { text-align: right; }

/* Color utilities */
.bg-gray-700 { background-color: #374151; }
.border-accent { border-color: var(--accent-cyan); }
.bg-accent { background-color: var(--bg-accent); }
.text-accent { color: var(--accent-cyan); }

/* Animation utilities */
.animate-fadeIn { animation: fadeIn 0.5s var(--transition-easing); }
.delay-200 { animation-delay: 0.2s; }
.transition-all.duration-300 { transition-duration: 300ms; }
.transition-all.duration-500 { transition-duration: 500ms; }

/* Hover effects */
.hover\:scale-105 { transition: transform 0.2s var(--transition-easing); }
.hover\:scale-105:hover { transform: scale(1.05); }
.hover\:scale-110 { transition: transform 0.2s var(--transition-easing); }
.hover\:scale-110:hover { transform: scale(1.1); }
.hover\:tilt { transition: none; }
.hover\:tilt:hover { transform: none; }
.hover\:rotate-3 { transition: none; }
.hover\:rotate-3:hover { transform: none; }

/* Project cards - completely disable all transforms */
#projects .card,
#projects .card:hover,
#projects .card:active,
#projects .card:focus {
    transform: none !important;
    transition: none !important;
}

/* Languages cards - completely disable all transforms */
#languages .card,
#languages .card:hover,
#languages .card:active,
#languages .card:focus {
    transform: none !important;
    transition: none !important;
}
.hover\:fade-big { transition: opacity var(--transition-duration) var(--transition-easing), transform var(--transition-duration) var(--transition-easing); }
.hover\:fade-big:hover { opacity: 0.95; transform: scale(1.02); }
.hover\:bg-purple { transition: background-color var(--transition-duration); }
.hover\:bg-purple:hover { background-color: var(--accent-purple); }

/* Focus utilities */
.focus\:outline-none { outline: none; }
.focus\:border-accent { border-color: var(--accent-cyan); }

/* Keyframe animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes progressAnimate {
    from { width: 0; }
    to { width: var(--progress-width); }
}

/* Pseudo elements */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
    transition: opacity var(--transition-duration);
    pointer-events: none;
}

.card:hover::before {
    opacity: 0;
}

/* Firefly variants with smooth appearance/disappearance */
.firefly {
    width: 7px;
    height: 7px;
    opacity: 0;
    animation: firefly-move 14s infinite linear, firefly-lifecycle 42s infinite ease-in-out;
}

/* Speed variants - set CSS custom property for duration */
.firefly.speed-fast { --duration: 12.6s; }
.firefly.speed-slow { --duration: 17.5s; }
.firefly.speed-ultra { --duration: 4.7s; }
.firefly.speed-crawl { --duration: 28s; }

/* Apply speed to movement animation */
.firefly.speed-fast { animation-duration: 12.6s; }
.firefly.speed-slow { animation-duration: 17.5s; }
.firefly.speed-ultra { animation-duration: 4.7s; }
.firefly.speed-crawl { animation-duration: 28s; }

/* Fade variants with lifecycle and brightness patterns */
.firefly.fade-dark { animation: firefly-move var(--duration, 14s) infinite linear, firefly-lifecycle 42s infinite ease-in-out, firefly-fade-dark 21s infinite ease-in-out; }
.firefly.fade-light { animation: firefly-move var(--duration, 14s) infinite linear, firefly-lifecycle 42s infinite ease-in-out, firefly-fade-light 21s infinite ease-in-out; }
.firefly.pulse-dark { animation: firefly-move var(--duration, 14s) infinite linear, firefly-lifecycle 42s infinite ease-in-out, firefly-pulse-dark 21s infinite ease-in-out; }
.firefly.pulse-light { animation: firefly-move var(--duration, 14s) infinite linear, firefly-lifecycle 42s infinite ease-in-out, firefly-pulse-light 21s infinite ease-in-out; }
.firefly.fade-bold { animation: firefly-move var(--duration, 14s) infinite linear, firefly-lifecycle 42s infinite ease-in-out, firefly-fade-bold 21s infinite ease-in-out; }

/* Size variants */
.firefly.size-large { width: 9px; height: 9px; }
.firefly.size-small { width: 5px; height: 5px; }
.firefly.size-medium { width: 6px; height: 6px; }

/* States */
button:active { transform: scale(0.98); }
a:active { transform: scale(0.98); }
a:visited { color: var(--accent-purple); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Remove all focus outlines */
*:focus {
    outline: none;
}

/* Accessibility */
button:focus-visible,
a:focus-visible {
    outline: none;
}

::selection {
    background-color: var(--accent-purple);
    color: var(--text-primary);
}

/* Scrollbar styling */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent-purple); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--hover-purple); }

/* Media queries */
@media (max-width: 1024px) {
    .navbar ul { gap: 1rem; }
    .card { padding: 1.25rem; }
    .section-bg { padding: 1.5rem; }
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }
    .social-icon { font-size: 1.25rem; }
    .progress-bar { height: 0.45rem; }
    .download-btn, button[type="submit"] { padding: 0.6rem 1.2rem; }
}

@media (max-width: 768px) {
    .navbar ul { flex-direction: column; gap: 0.5rem; }
    .navbar h1 { font-size: 1.5rem; }
    .card { padding: 1rem; }
    .section-bg { padding: 1rem; margin: 0.5rem; }
    .progress-bar { height: 0.375rem; }
    .download-btn, button[type="submit"] { padding: 0.5rem 1rem; }
    .social-icon { font-size: 1.25rem; }
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }
    p { font-size: 0.95rem; }
}

@media (max-width: 640px) {
    .navbar { padding: 0.75rem 0; }
    .navbar ul { gap: 0.25rem; }
    .navbar a { font-size: 0.875rem; }
    .card { padding: 0.75rem; }
    .section-bg { padding: 0.75rem; margin: 0.25rem; }
    h1 { font-size: 1.25rem; }
    h2 { font-size: 1.125rem; }
    h3 { font-size: 1rem; }
    p { font-size: 0.875rem; }
    .download-btn, button[type="submit"] { font-size: 0.875rem; padding: 0.5rem; }
    .social-icon { font-size: 1rem; }
    .progress-bar { height: 0.3rem; }
}

@media (min-width: 1280px) {
    .container { max-width: 1200px; }
    .card { padding: 2rem; }
    .section-bg { padding: 3rem; }
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.5rem; }
    p { font-size: 1.1rem; }
    .social-icon { font-size: 1.75rem; }
    .download-btn { padding: 1rem 2rem; }
}

/* Print styles */
@media print {
    .firefly-container { display: none; }
    body { color: #000; background-color: #fff; }
    * { box-shadow: none !important; }
}

/* Accessibility preferences */
@media (prefers-contrast: more) {
    :root {
        --text-primary-dark: #fff;
        --text-primary-light: #000;
        --bg-primary-dark: #000;
        --bg-primary-light: #fff;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

@media (prefers-color-scheme: dark) {
    body:not([data-theme]) {
        --bg-primary: var(--bg-primary-dark);
        --text-primary: var(--text-primary-dark);
    }
}

@media (prefers-color-scheme: light) {
    body:not([data-theme]) {
        --bg-primary: var(--bg-primary-light);
        --text-primary: var(--text-primary-light);
    }
}