/**
 * Toqiz Landing Page Styles
 * Modern gradient design with purple-blue color scheme
 * Mobile-first responsive design
 */

/* === CSS Variables === */
:root {
    /* Colors from main project */
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-primary-light: #eff6ff;
    --color-secondary: #007bff;
    --color-secondary-hover: #0056b3;
    
    --color-background: #f8f9fa;
    --color-surface: #ffffff;
    
    --color-text: #1f2937;
    --color-text-secondary: #6b7280;
    --color-text-light: #9ca3af;
    
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Typography */
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
}

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

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

img {
    max-width: 100%;
    height: auto;
}

/* === Container === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-xl);
    }
}

/* === Language Selector === */
/* === Language Selector Dropdown === */
.language-selector {
    position: fixed;
    top: var(--space-md);
    right: var(--space-md);
    z-index: 1000;
}

.lang-dropdown-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: #ffffff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.lang-dropdown-btn:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a4190 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

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

.lang-dropdown-btn .fa-chevron-down {
    font-size: 0.75rem;
    transition: transform var(--transition-base);
}

.lang-dropdown-btn[aria-expanded="true"] .fa-chevron-down {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-xs));
    right: 0;
    min-width: 180px;
    background: #ffffff;
    border: 1px solid rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: var(--space-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
}

.lang-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: left;
}

.lang-option:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    color: #667eea;
}

.lang-option.active {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    color: #667eea;
    font-weight: 600;
}

.lang-option .flag {
    font-size: 1.25rem;
}

@media (max-width: 768px) {
    .language-selector {
        top: var(--space-sm);
        right: var(--space-sm);
    }
    
    .lang-dropdown-btn {
        padding: var(--space-xs) var(--space-sm);
    }
    
    .lang-dropdown-btn span {
        display: none;
    }
    
    .lang-dropdown-btn .fa-globe {
        font-size: 1rem;
    }
}

/* === Hero Section === */
.hero-section {
    padding: calc(var(--space-3xl) + var(--space-xl)) var(--space-md) var(--space-3xl);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
    z-index: 0;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--space-2xl);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* === Waitlist Form === */
.waitlist-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

@media (min-width: 640px) {
    .form-group {
        flex-direction: row;
    }
}

.email-input {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.98);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    outline: none;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.email-input:focus {
    border-color: white;
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.email-input::placeholder {
    color: var(--color-text-light);
}

/* === Buttons === */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.cta-button.primary {
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.cta-button.primary:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6a4190 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.cta-button.primary:active {
    transform: translateY(0);
}

.cta-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* === Form Messages === */
.form-message {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
}

.form-message.success {
    color: var(--color-success);
    background: #ffffff;
    border: 2px solid var(--color-success);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.15);
}

.form-message.error {
    color: var(--color-danger);
    background: #ffffff;
    border: 2px solid var(--color-danger);
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.15);
}

/* === Section Styles === */
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
    color: var(--color-text-secondary);
}

/* === Features Section === */
.features-section {
    padding: var(--space-3xl) var(--space-md);
    background: var(--color-surface);
    /* White background */
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

/* Responsive grid for features */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    padding: var(--space-xl);
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
    background: linear-gradient(135deg, #ffffff 0%, #f0f4ff 100%);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: #ffffff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature-card:hover .feature-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.5);
}

/* Different colors for each feature icon */
.feature-card:nth-child(1) .feature-icon {
    background: linear-gradient(135deg, #5568d3 0%, #6a4190 100%);
    box-shadow: 0 4px 12px rgba(85, 104, 211, 0.4);
}

.feature-card:nth-child(1):hover .feature-icon {
    box-shadow: 0 8px 24px rgba(85, 104, 211, 0.6);
}

.feature-card:nth-child(2) .feature-icon {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.4);
}

.feature-card:nth-child(2):hover .feature-icon {
    box-shadow: 0 8px 24px rgba(231, 76, 60, 0.6);
}

.feature-card:nth-child(3) .feature-icon {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
}

.feature-card:nth-child(3):hover .feature-icon {
    box-shadow: 0 8px 24px rgba(52, 152, 219, 0.6);
}

.feature-card:nth-child(4) .feature-icon {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.4);
}

.feature-card:nth-child(4):hover .feature-icon {
    box-shadow: 0 8px 24px rgba(243, 156, 18, 0.6);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.feature-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* === Use Cases Section === */
.use-cases-section {
    padding: var(--space-3xl) var(--space-md);
    background: var(--color-background);
    /* Light gray background */
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

/* Responsive grid for use cases */
@media (max-width: 1024px) {
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}

.use-case-card {
    padding: var(--space-xl);
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
    text-align: center;
}

.use-case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
}

.use-case-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.use-case-card:hover .use-case-icon {
    transform: scale(1.15) rotate(-5deg);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.5);
}

/* Different colors for each use case icon */
.use-case-card:nth-child(1) .use-case-icon {
    background: linear-gradient(135deg, #1abc9c 0%, #16a085 100%);
    box-shadow: 0 4px 12px rgba(26, 188, 156, 0.4);
}

.use-case-card:nth-child(1):hover .use-case-icon {
    box-shadow: 0 8px 24px rgba(26, 188, 156, 0.6);
}

.use-case-card:nth-child(2) .use-case-icon {
    background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
    box-shadow: 0 4px 12px rgba(230, 126, 34, 0.4);
}

.use-case-card:nth-child(2):hover .use-case-icon {
    box-shadow: 0 8px 24px rgba(230, 126, 34, 0.6);
}

.use-case-card:nth-child(3) .use-case-icon {
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
}

.use-case-card:nth-child(3):hover .use-case-icon {
    box-shadow: 0 8px 24px rgba(52, 152, 219, 0.6);
}

.use-case-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.use-case-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* === Benefits Section === */
.benefits-section {
    padding: var(--space-3xl) var(--space-md);
    background: var(--color-surface);
    /* White background */
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
    padding: var(--space-xl);
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid rgba(102, 126, 234, 0.1);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
}

.benefit-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.3);
}

.benefit-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: #ffffff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.benefit-item:hover .benefit-icon {
    transform: scale(1.15) rotate(8deg);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.5);
}

/* Different colors for each benefit icon */
.benefit-item:nth-child(1) .benefit-icon {
    background: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.4);
}

.benefit-item:nth-child(1):hover .benefit-icon {
    box-shadow: 0 8px 24px rgba(39, 174, 96, 0.6);
}

.benefit-item:nth-child(2) .benefit-icon {
    background: linear-gradient(135deg, #9b59b6 0%, #8e44ad 100%);
    box-shadow: 0 4px 12px rgba(155, 89, 182, 0.4);
}

.benefit-item:nth-child(2):hover .benefit-icon {
    box-shadow: 0 8px 24px rgba(155, 89, 182, 0.6);
}

.benefit-item:nth-child(3) .benefit-icon {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.4);
}

.benefit-item:nth-child(3):hover .benefit-icon {
    box-shadow: 0 8px 24px rgba(231, 76, 60, 0.6);
}

.benefit-content {
    flex: 1;
}

.benefit-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
    font-weight: 600;
}

.benefit-description {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* === CTA Section === */
.cta-section {
    padding: var(--space-3xl) var(--space-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
    z-index: 0;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    color: white;
}

.cta-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--space-2xl);
    color: rgba(255, 255, 255, 0.9);
}

.cta-form .email-input {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.95);
}

.cta-form .email-input:focus {
    border-color: white;
    background: white;
}

.cta-form .cta-button.primary {
    background: white;
    color: #667eea;
    border-color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.cta-form .cta-button.primary:hover {
    background: #f8f9fa;
    color: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* CTA form messages inherit default styles - no override needed */

/* === Footer === */
.footer {
    padding: var(--space-3xl) var(--space-md) var(--space-xl);
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: white;
}

.footer-description {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-base);
}

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

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.social-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* === Responsive Adjustments === */
@media (max-width: 640px) {
    .hero-section {
        padding: calc(var(--space-2xl) + var(--space-xl)) var(--space-md) var(--space-2xl);
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .benefit-item {
        flex-direction: column;
        text-align: center;
    }
    
    .benefit-icon {
        margin: 0 auto;
    }
}

/* === Animations === */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.use-case-card,
.benefit-item {
    animation: fadeIn 0.6s ease-out;
}

/* === Loading State === */
.loading {
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin: -8px 0 0 -8px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear 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-width: 0;
}

/* === Focus Styles === */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* === Accessibility - Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .feature-card:hover .feature-icon,
    .use-case-card:hover .use-case-icon,
    .benefit-item:hover .benefit-icon {
        transform: scale(1.05);
    }
}