/* CSS Variables */
:root {
    --primary-color: #0066ff;
    --secondary-color: #00ccff;
    --accent-color: #ff6b6b;
    --bg-color: #ffffff;
    --surface-color: #f8f9fa;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #0066ff, #00ccff);
    --gradient-secondary: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    --gradient-dark: linear-gradient(135deg, #1a1a1a, #333333);
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-color: #0a0a0a;
    --surface-color: #1a1a1a;
    --text-color: #ffffff;
    --text-light: #cccccc;
    --border-color: #333333;
    --shadow-color: rgba(255, 255, 255, 0.1);
    --box-shadow: 0 4px 20px rgba(255, 255, 255, 0.1);
    --box-shadow-hover: 0 8px 30px rgba(255, 255, 255, 0.15);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease-out;
}

.loader {
    text-align: center;
    z-index: 10001;
}

.loader-ring {
    width: 120px;
    height: 120px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 30px;
}

.loader-text {
    display: flex;
    justify-content: center;
    gap: 5px;
}

.loader-letter {
    font-size: 24px;
    font-weight: 700;
    color: white;
    animation: letterBounce 1.5s infinite;
}

.loader-letter:nth-child(1) { animation-delay: 0s; }
.loader-letter:nth-child(2) { animation-delay: 0.1s; }
.loader-letter:nth-child(3) { animation-delay: 0.2s; }
.loader-letter:nth-child(4) { animation-delay: 0.3s; }
.loader-letter:nth-child(5) { animation-delay: 0.4s; }
.loader-letter:nth-child(6) { animation-delay: 0.5s; }

#loading-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .navbar {
    background: rgba(10, 10, 10, 0.95);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

.logo-accent {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle,
.lang-toggle {
    background: none;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover,
.lang-toggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: scale(1.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

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

.nav-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--gradient-primary);
}

#hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    opacity: 0.1;
    animation: float 20s infinite linear;
}

.shape-1 {
    top: 20%;
    left: 10%;
    width: 100px;
    height: 100px;
    background: white;
    border-radius: 50%;
    animation-delay: 0s;
}

.shape-2 {
    top: 60%;
    right: 20%;
    width: 80px;
    height: 80px;
    background: white;
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    animation-delay: 5s;
}

.shape-3 {
    bottom: 30%;
    left: 15%;
    width: 60px;
    height: 60px;
    background: white;
    transform: rotate(45deg);
    animation-delay: 10s;
}

.shape-4 {
    top: 40%;
    right: 10%;
    width: 120px;
    height: 120px;
    background: white;
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    animation-delay: 15s;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 0 20px;
}

.hero-profile {
    margin-bottom: 2rem;
}

.profile-frame {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 5px solid white;
    object-fit: cover;
    position: relative;
    z-index: 2;
}

.profile-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    width: calc(100% + 20px);
    height: calc(100% + 20px);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3), transparent);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(50px);
    animation: fadeInUp 1s ease-out forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.3s;
}

.title-line.accent {
    background: linear-gradient(45deg, #ffffff, #00ccff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    min-height: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    z-index: 3;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-right: 2px solid white;
    border-bottom: 2px solid white;
    transform: rotate(45deg);
    margin: 10px auto;
    animation: bounce 2s infinite;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0052cc, #00aacc);
}

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

/* Sections */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--surface-color);
}

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

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateX(10px);
    box-shadow: var(--box-shadow-hover);
}

.highlight-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.skills-section h4 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-color);
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-item {
    padding: 1.5rem;
    background: var(--bg-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.skill-name {
    font-weight: 600;
    color: var(--text-color);
}

.skill-percent {
    font-weight: 600;
    color: var(--primary-color);
}

.skill-progress {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
    transition: width 1s ease-out;
}

/* Services Section */
.services {
    padding: 6rem 0;
    background: var(--bg-color);
}

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

.service-card {
    padding: 2.5rem;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
}

.service-card:hover::before {
    left: 0;
    opacity: 0.1;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.service-icon {
    position: relative;
    z-index: 2;
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    font-size: 2rem;
}

.service-card h3 {
    position: relative;
    z-index: 2;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.service-card p {
    position: relative;
    z-index: 2;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-price {
    position: relative;
    z-index: 2;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Portfolio Section */
.portfolio {
    padding: 6rem 0;
    background: var(--surface-color);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: var(--bg-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 102, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay i {
    font-size: 2rem;
    color: white;
}

.portfolio-info {
    padding: 1.5rem;
}

.portfolio-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.portfolio-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.portfolio-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-light);
}

.portfolio-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Testimonials Section */
.testimonials {
    padding: 6rem 0;
    background: var(--bg-color);
}

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

.testimonial-card {
    padding: 2.5rem;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.testimonial-content {
    margin-bottom: 2rem;
}

.testimonial-content p {
    font-style: italic;
    color: var(--text-light);
    line-height: 1.6;
    position: relative;
}

.testimonial-content p::before {
    content: '"';
    font-size: 3rem;
    color: var(--primary-color);
    position: absolute;
    top: -10px;
    left: -15px;
}

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

.author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.author-info span {
    color: var(--text-light);
    font-size: 0.9rem;
}

.testimonial-rating {
    color: #ffd700;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--surface-color);
}

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

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--box-shadow);
}

.contact-item i {
    font-size: 1.25rem;
    color: var(--primary-color);
    width: 20px;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-color);
    color: var(--text-color);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-hover);
}

/* Contact Form */
.contact-form {
    background: var(--bg-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: transparent;
    font-size: 1rem;
    transition: var(--transition);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--text-light);
    transition: var(--transition);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 15px;
    font-size: 0.8rem;
    color: var(--primary-color);
    background: var(--bg-color);
    padding: 0 5px;
}

/* Footer */
.footer {
    padding: 2rem 0;
    background: var(--text-color);
    color: var(--bg-color);
    text-align: center;
}

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

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--bg-color);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background-color: var(--bg-color);
    margin: 5% auto;
    padding: 0;
    width: 90%;
    max-width: 800px;
    border-radius: var(--border-radius);
    overflow: hidden;
    animation: modalSlideIn 0.3s ease-out;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    color: var(--text-color);
    cursor: pointer;
    z-index: 10001;
    background: var(--bg-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.modal-body img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.modal-info {
    padding: 2rem;
}

.modal-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.modal-info p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modal-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.modal-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
}

.modal-stat i {
    color: var(--primary-color);
}

.modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.modal-tag {
    padding: 0.25rem 0.75rem;
    background: var(--surface-color);
    color: var(--text-color);
    border-radius: 20px;
    font-size: 0.8rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-color);
        flex-direction: column;
        align-items: center;
        justify-content: start;
        padding-top: 2rem;
        transition: var(--transition);
        box-shadow: var(--box-shadow);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

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

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .modal-body {
        grid-template-columns: 1fr;
    }

    .modal-body img {
        height: 250px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-slider {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .portfolio-filters {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 200px;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.hidden { display: none; }
.visible { display: block; }
.pulse-animation { animation: pulse 2s infinite; }

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

/* Focus styles for keyboard navigation */
.nav-link:focus,
.btn:focus,
.filter-btn:focus,
.theme-toggle:focus,
.lang-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --shadow-color: rgba(0, 0, 0, 0.5);
    }
}