@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #7c3aed;
    --accent: #10b981;
    --text: #1e293b;
    --text-light: #64748b;
    --bg: #f8fafc;
    --bg-light: #ffffff;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --rounded-sm: 0.125rem;
    --rounded: 0.25rem;
    --rounded-md: 0.375rem;
    --rounded-lg: 0.5rem;
    --rounded-xl: 0.75rem;
    --rounded-2xl: 1rem;
    --rounded-full: 9999px;
}
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.5;
    color: var(--text);
    background-color: var(--bg);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
main {
    flex: 1;
    padding: 2rem 1rem;
}

@media (min-width: 768px) {
    main {
        padding: 3rem 2rem;
    }
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }
}

section {
    margin-bottom: 4rem;
    padding: 2rem 0;
}

@media (min-width: 768px) {
    section {
        padding: 3rem 0;
    }
}
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }
}

section {
    margin-bottom: 3rem;
    padding: 1.5rem 0;
}

@media (min-width: 768px) {
    section {
        padding: 2rem 0;
    }
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--rounded-md);
    font-weight: 500;
    font-size: 0.9375rem;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 1px solid transparent;
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--bg-light);
    color: var(--primary);
    border-color: var(--border);
}

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

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

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

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}
.card {
    background: var(--bg-light);
    border-radius: var(--rounded-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}
/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1rem;
    color: var(--text);
}

h1 {
    font-size: 2.25rem;
    font-weight: 800;
}

h2 {
    font-size: 1.875rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

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

.text-sm {
    font-size: 0.875rem;
}

.text-md {
    font-size: 1rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}

.text-2xl {
    font-size: 1.5rem;
}

.text-primary {
    color: var(--primary);
}

.text-secondary {
    color: var(--secondary);
}

.text-accent {
    color: var(--accent);
}

.font-light {
    font-weight: 300;
}

.font-normal {
    font-weight: 400;
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

@media (min-width: 768px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.25rem;
    }
    
    h3 {
        font-size: 1.75rem;
    }
}
/* Layout */
.grid {
    display: grid;
    gap: 1.5rem;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-4 {
    gap: 1rem;
}

.gap-6 {
    gap: 1.5rem;
}

.gap-8 {
    gap: 2rem;
}

/* Spacing */
.p-4 {
    padding: 1rem;
}

.p-6 {
    padding: 1.5rem;
}

.p-8 {
    padding: 2rem;
}

.py-4 {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.py-8 {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.px-6 {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

.mt-4 {
    margin-top: 1rem;
}

.mt-8 {
    margin-top: 2rem;
}

/* Grid columns */
.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (min-width: 640px) {
    .sm\:grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .md\:grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .lg\:grid-cols-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}
/* Utility classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.w-full {
    width: 100%;
}

.max-w-sm {
    max-width: 24rem;
}

.max-w-md {
    max-width: 28rem;
}

.max-w-lg {
    max-width: 32rem;
}

.max-w-xl {
    max-width: 36rem;
}

.max-w-2xl {
    max-width: 42rem;
}

.max-w-3xl {
    max-width: 48rem;
}

.max-w-4xl {
    max-width: 56rem;
}

.max-w-5xl {
    max-width: 64rem;
}

.max-w-6xl {
    max-width: 72rem;
}

.max-w-7xl {
    max-width: 80rem;
}

.max-w-full {
    max-width: 100%;
}

.h-full {
    height: 100%;
}

.min-h-screen {
    min-height: 100vh;
}

.overflow-hidden {
    overflow: hidden;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.sticky {
    position: sticky;
}

.top-0 {
    top: 0;
}

.right-0 {
    right: 0;
}

.bottom-0 {
    bottom: 0;
}

.left-0 {
    left: 0;
}

.z-10 {
    z-index: 10;
}

.z-20 {
    z-index: 20;
}

.z-30 {
    z-index: 30;
}

.z-40 {
    z-index: 40;
}

.z-50 {
    z-index: 50;
}

.bg-white {
    background-color: white;
}

.bg-primary {
    background-color: var(--primary);
}

.bg-secondary {
    background-color: var(--secondary);
}

.bg-accent {
    background-color: var(--accent);
}

.bg-gray-50 {
    background-color: var(--bg);
}

.bg-gray-100 {
    background-color: var(--bg-light);
}

.border {
    border: 1px solid var(--border);
}

.border-t {
    border-top: 1px solid var(--border);
}

.border-b {
    border-bottom: 1px solid var(--border);
}

.border-l {
    border-left: 1px solid var(--border);
}

.border-r {
    border-right: 1px solid var(--border);
}

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

.border-secondary {
    border-color: var(--secondary);
}

.border-accent {
    border-color: var(--accent);
}

.rounded {
    border-radius: var(--rounded);
}

.rounded-md {
    border-radius: var(--rounded-md);
}

.rounded-lg {
    border-radius: var(--rounded-lg);
}

.rounded-xl {
    border-radius: var(--rounded-xl);
}

.rounded-full {
    border-radius: var(--rounded-full);
}

.shadow {
    box-shadow: var(--shadow);
}

.shadow-md {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

.shadow-none {
    box-shadow: none;
}

.opacity-0 {
    opacity: 0;
}

.opacity-50 {
    opacity: 0.5;
}

.opacity-100 {
    opacity: 1;
}

.transition {
    transition-property: all;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

.duration-100 {
    transition-duration: 100ms;
}

.duration-150 {
    transition-duration: 150ms;
}

.duration-200 {
    transition-duration: 200ms;
}

.duration-300 {
    transition-duration: 300ms;
}

.ease-in {
    transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
}

.ease-out {
    transition-timing-function: cubic-bezier(0, 0, 0.2, 1);
}

.ease-in-out {
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.hidden {
    display: none;
}

.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

.inline-flex {
    display: inline-flex;
}

.flex {
    display: flex;
}

.inline {
    display: inline;
}

.table {
    display: table;
}

.table-row {
    display: table-row;
}

.table-cell {
    display: table-cell;
}

@media (min-width: 640px) {
    .sm\:block {
        display: block;
    }
    
    .sm\:hidden {
        display: none;
    }
}

@media (min-width: 768px) {
    .md\:block {
        display: block;
    }
    
    .md\:hidden {
        display: none;
    }
}

@media (min-width: 1024px) {
    .lg\:block {
        display: block;
    }
    
    .lg\:hidden {
        display: none;
    }
}
/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-light);
    z-index: 50;
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-lg);
}

.mobile-menu.open {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.mobile-menu-close {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--rounded-full);
}

.mobile-menu-close:hover {
    background-color: var(--bg);
    color: var(--text);
}

.mobile-nav {
    padding: 1.5rem;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 0;
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.mobile-nav-link i {
    margin-right: 1rem;
    width: 1.25rem;
    height: 1.25rem;
}

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

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.overlay.active {
    opacity: 1;
    pointer-events: all;
}

body.menu-open {
    overflow: hidden;
}
/* Accessibility */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--rounded-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

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

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade {
    animation: fadeIn 0.3s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.3s ease-out;
}

/* Responsive containers */
.container-xs {
    max-width: 480px;
}

.container-sm {
    max-width: 640px;
}

.container-md {
    max-width: 768px;
}

.container-lg {
    max-width: 1024px;
}

.container-xl {
    max-width: 1280px;
}

.container-2xl {
    max-width: 1536px;
}

/* Hero section */
.hero {
    position: relative;
    padding: 6rem 1rem;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 75% 25%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 48rem;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2.5rem;
}

@media (min-width: 768px) {
    .hero {
        padding: 8rem 1rem;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
}

/* Features section */
.features {
    padding: 4rem 0;
}

.feature-card {
    height: 100%;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary);
    color: white;
    border-radius: var(--rounded-lg);
    margin-bottom: 1.5rem;
}

.feature-icon i {
    width: 1.5rem;
    height: 1.5rem;
}

/* Testimonials */
.testimonial-card {
    border: 1px solid var(--border);
    border-radius: var(--rounded-xl);
    padding: 2rem;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.testimonial-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: var(--rounded-full);
    margin-right: 1rem;
}

.testimonial-author {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.testimonial-role {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* CTA section */
.cta {
    background: linear-gradient(to right, var(--primary), var(--secondary));
    color: white;
    padding: 4rem 1rem;
    border-radius: var(--rounded-xl);
    overflow: hidden;
    position: relative;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 25% 75%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 10;
    max-width: 48rem;
    margin: 0 auto;
    text-align: center;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.cta-description {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .cta {
        padding: 6rem 1rem;
    }
    
    .cta-title {
        font-size: 2.5rem;
    }
    
    .cta-description {
        font-size: 1.25rem;
    }
}

/* Stats */
.stat-card {
    text-align: center;
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-light);
}

/* Pricing */
.pricing-card {
    border: 1px solid var(--border);
    border-radius: var(--rounded-xl);
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.pricing-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border);
}

.pricing-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.pricing-period {
    font-size: 1rem;
    color: var(--text-light);
}

.pricing-features {
    padding: 2rem;
}

.pricing-feature {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.pricing-feature i {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.75rem;
    color: var(--primary);
}

.pricing-footer {
    padding: 2rem;
    border-top: 1px solid var(--border);
}

/* FAQ */
.faq-item {
    margin-bottom: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--rounded-lg);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    background-color: var(--bg-light);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background-color: var(--bg);
}

.faq-answer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text);
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--rounded-md);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
    border-color: var(--primary);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.form-text {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.form-check {
    display: flex;
    align-items: center;
}

.form-check-input {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
}

.form-check-label {
    font-size: 0.875rem;
    color: var(--text);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--rounded-full);
}

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

.badge-secondary {
    background-color: var(--secondary);
    color: white;
}

.badge-accent {
    background-color: var(--accent);
    color: white;
}

.badge-outline {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--rounded-md);
    margin-bottom: 1rem;
}

.alert-primary {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.alert-secondary {
    background-color: rgba(124, 58, 237, 0.1);
    color: var(--secondary);
    border: 1px solid rgba(124, 58, 237, 0.2);
}

.alert-accent {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #d97706;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 600;
    color: var(--text);
    background-color: var(--bg);
}

.table-striped tbody tr:nth-child(odd) {
    background-color: var(--bg);
}

.table-hover tbody tr:hover {
    background-color: var(--bg-light);
}

/* Progress bars */
.progress {
    height: 0.5rem;
    background-color: var(--bg);
    border-radius: var(--rounded-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary);
    border-radius: var(--rounded-full);
}

/* Tooltips */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 120px;
    background-color: var(--text);
    color: white;
    text-align: center;
    border-radius: var(--rounded-md);
    padding: 0.25rem 0.5rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip .tooltip-text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--text) transparent transparent transparent;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* Responsive iframes */
.embed-responsive {
    position: relative;
    overflow: hidden;
    padding-top: 56.25%;
}

.embed-responsive iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --primary: #3b82f6;
        --primary-dark: #2563eb;
        --secondary: #8b5cf6;
        --accent: #10b981;
        --text: #f8fafc;
        --text-light: #94a3b8;
        --bg: #0f172a;
        --bg-light: #1e293b;
        --border: #334155;
    }
}