/* Custom & Classics Website - Main Stylesheet */

/* CSS Variables */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --background-primary: #ffffff;
    --background-secondary: #f1f5f9;
    --background-card: #ffffff;
    --background-hover: #f8fafc;
    --border-color: rgba(15, 23, 42, 0.08);
    --border-light: #e2e8f0;
    --gradient-primary: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #2563eb 100%);
    --gradient-secondary: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    --shadow-light: 0 1px 3px rgba(15, 23, 42, 0.1);
    --shadow-medium: 0 4px 20px rgba(15, 23, 42, 0.08);
    --shadow-large: 0 20px 40px rgba(15, 23, 42, 0.15);
    --shadow-colored: 0 10px 30px rgba(37, 99, 235, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* Container System */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* Header and Navigation */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.nav-logo img {
    height: 40px;
    width: auto;
}

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

.nav-menu a {
    font-weight: 500;
    color: var(--text-primary);
    transition: var(--transition);
}

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

.nav-contact-btn {
    background: var(--gradient-primary);
    color: white !important;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--background-card);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-medium);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
    padding: 6rem 0;
    text-align: center;
    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="25" cy="25" r="1" fill="%232563eb" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%232563eb" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="%232563eb" opacity="0.05"/><circle cx="10" cy="60" r="0.5" fill="%232563eb" opacity="0.05"/><circle cx="90" cy="40" r="0.5" fill="%232563eb" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
}

@media (min-width: 768px) {
    .hero-content {
        flex-direction: row;
        align-items: center;
        text-align: left;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
    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(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-colored);
}

.btn-secondary {
    background: var(--background-card);
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-light);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-large);
}

.btn-primary:hover {
    box-shadow: var(--shadow-colored), var(--shadow-large);
}

.btn i {
    font-size: 0.875rem;
}

/* Grid Systems */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Feature Cards */
.feature-card {
    background: var(--background-card);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-colored);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Car Cards */
.cars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.car-card {
    background: var(--background-card);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--border-light);
    position: relative;
}

.car-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.car-card:hover::before {
    opacity: 0.05;
}

.car-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-colored);
    border-color: var(--primary-color);
}

.car-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

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

.car-info {
    padding: 1.5rem;
    position: relative;
    z-index: 2;
}

.car-info h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.car-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.car-details {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Contact Form */
.contact-form {
    background: var(--background-card);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

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

.form-field label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
    background: var(--background-hover);
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    background: var(--background-card);
    transform: translateY(-2px);
}

.form-field textarea {
    resize: vertical;
    min-height: 120px;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--background-card);
    border-radius: 16px;
    max-width: 1200px;
    width: 95vw;
    max-height: 95vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-large);
    display: flex;
    flex-direction: column;
}

.close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2.5rem;
    font-weight: 300;
    cursor: pointer;
    color: var(--text-muted);
    z-index: 1000;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.close:hover {
    color: var(--primary-color);
    transform: rotate(90deg) scale(1.1);
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-colored);
}

.modal-header {
    padding: 2rem 2rem 1rem;
    border-bottom: 2px solid var(--border-light);
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.modal-header h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.modal-header p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.modal-image-gallery {
    padding: 1.5rem;
    background: var(--background-card);
}

.image-container {
    position: relative;
    background: var(--background-secondary);
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16/9;
    margin-bottom: 1rem;
}

.modal-main-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    cursor: pointer;
    transition: var(--transition);
}

.modal-main-image:hover {
    opacity: 0.9;
}

.image-navigation {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 1rem;
}

.nav-arrow {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
    backdrop-filter: blur(10px);
}

.nav-arrow:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-colored);
}

.nav-arrow i {
    font-size: 1.25rem;
}

.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 0.5rem;
}

.thumbnail {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    background: var(--background-secondary);
    transition: var(--transition);
}

.thumbnail:hover {
    border-color: var(--primary-color);
    opacity: 0.8;
}

.thumbnail.active {
    border-color: var(--primary-color);
    opacity: 1;
    box-shadow: 0 0 0 2px var(--primary-color);
}

@media (max-width: 768px) {
    .thumbnail-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.modal-details {
    padding: 1.5rem;
    background: var(--background-card);
}

.detail-row {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-light);
    align-items: center;
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.detail-value {
    color: var(--text-primary);
    font-weight: 500;
    text-align: right;
}

.modal-contact-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-light);
}

.modal-contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.modal-contact-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-medium);
}

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

.modal-contact-btn-secondary:hover {
    background: var(--background-hover);
}

.modal-contact-btn i {
    font-size: 1rem;
}

/* Fullscreen Image Viewer */
.fullscreen-image-viewer {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 3000;
    align-items: center;
    justify-content: center;
}

.fullscreen-image-viewer.active {
    display: flex;
}

.fullscreen-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    color: white;
    z-index: 100;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.fullscreen-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg) scale(1.1);
}

.fullscreen-main-image {
    max-width: 95vw;
    max-height: 95vh;
    object-fit: contain;
    cursor: zoom-out;
}

.fullscreen-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.fullscreen-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.fullscreen-nav-left {
    left: 2rem;
}

.fullscreen-nav-right {
    right: 2rem;
}

.fullscreen-nav i {
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .fullscreen-close {
        top: 1rem;
        right: 1rem;
        font-size: 2rem;
        width: 40px;
        height: 40px;
    }
    
    .fullscreen-nav {
        width: 48px;
        height: 48px;
    }
    
    .fullscreen-nav-left {
        left: 1rem;
    }
    
    .fullscreen-nav-right {
        right: 1rem;
    }
}

/* Footer */
footer {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
    color: white;
    padding: 4rem 0 2rem;
    margin-top: 4rem;
    position: relative;
    overflow: hidden;
}

footer::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="footer-grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.05"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23footer-grain)"/></svg>');
    opacity: 0.3;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
    display: block;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 2;
}

/* Modern Enhancements */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-light), transparent);
    margin: 4rem 0;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.floating-animation {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.125rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cars-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95vw;
    }
    
    .modal-header {
        padding: 1.5rem 1rem 1rem;
    }
    
    .modal-image-gallery {
        padding: 1rem;
    }
    
    .modal-details {
        padding: 1rem;
    }
    
    .modal-contact-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 2rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .feature-card,
    .contact-form {
        padding: 1.5rem;
    }
    
    .modal-content {
        border-radius: 8px;
    }
    
    .modal-header h2 {
        font-size: 1.25rem;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-image-gallery,
    .modal-details {
        padding: 0.75rem;
    }
    
    .detail-row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
        padding: 0.5rem 0;
    }
    
    .detail-label {
        font-size: 0.8125rem;
    }
    
    .detail-value {
        text-align: left;
        font-size: 0.875rem;
    }
    
    .modal-contact-btn {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }
}

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-light);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for keyboard navigation */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .hamburger,
    .modal,
    footer {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}