/* VirDisPay Responsive Styles */

/* Extra Large Devices (1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .section-header h2 {
        font-size: 3rem;
    }
}

/* Large Devices (992px and up) */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    .hero-container {
        gap: 3rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Medium Devices (768px and up) */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

/* Small Devices (576px and up) */
@media (min-width: 576px) and (max-width: 767px) {
    .container {
        max-width: 540px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
    
    .integration-demo {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .tab-content {
        padding: 1.5rem;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Extra Small Devices (less than 576px) */
@media (max-width: 575px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
    }
    
    .feature-icon i {
        font-size: 1.2rem;
    }
    
    .comparison {
        padding: 60px 0;
    }
    
    .comparison-table {
        margin-bottom: 2rem;
    }
    
    .comparison-header {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .comparison-row {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .highlight-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .pricing {
        padding: 60px 0;
    }
    
    .pricing-toggle {
        flex-direction: column;
        gap: 1rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
    
    .pricing-card.popular {
        transform: none;
        margin: 1rem 0;
    }
    
    .integration {
        padding: 60px 0;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .tab-button {
        width: 100%;
        max-width: 280px;
    }
    
    .tab-content {
        padding: 1rem;
    }
    
    .demo-code pre {
        font-size: 0.8rem;
        padding: 0.75rem;
    }
    
    .about {
        padding: 60px 0;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .about-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .about-features {
        gap: 1rem;
    }
    
    .about-feature {
        flex-direction: column;
        text-align: center;
    }
    
    .industry-image {
        height: 250px;
    }
    
    .contact {
        padding: 60px 0;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .payment-demo {
        width: 100%;
        max-width: 320px;
    }
    
    .demo-content {
        padding: 1.5rem;
    }
    
    .payment-amount {
        font-size: 2rem;
    }
    
    .network-option {
        padding: 0.75rem;
    }
    
    .network-icon {
        width: 35px;
        height: 35px;
        font-size: 0.8rem;
    }
}

/* Navigation Responsive */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 1rem;
    }

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

    .hamburger {
        display: flex;
    }

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

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .nav-cta {
        margin-top: 1rem;
        padding: 10px 20px;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .hero-cta,
    .btn,
    .contact-form,
    .footer {
        display: none;
    }
    
    .hero {
        padding: 20px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .features,
    .comparison,
    .pricing,
    .integration,
    .about,
    .contact {
        padding: 20px 0;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .feature-card,
    .pricing-card {
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .btn-primary {
        background: #000;
        color: #fff;
        border: 2px solid #000;
    }
    
    .btn-secondary {
        background: #fff;
        color: #000;
        border: 2px solid #000;
    }
    
    .feature-card {
        border: 2px solid #000;
    }
    
    .gradient-text {
        color: #000;
        background: none;
        -webkit-text-fill-color: initial;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .payment-demo {
        animation: none;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #ffffff;
        --card-bg: #2d2d2d;
        --border-color: #404040;
    }
    
    body {
        background-color: var(--bg-color);
        color: var(--text-color);
    }
    
    .navbar {
        background: rgba(26, 26, 26, 0.95);
        border-bottom-color: var(--border-color);
    }
    
    .hero {
        background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
    }
    
    .feature-card,
    .pricing-card,
    .comparison-table,
    .tab-content,
    .contact-form {
        background: var(--card-bg);
        border-color: var(--border-color);
    }
    
    .nav-link,
    .hero-title,
    .section-header h2,
    .feature-card h3,
    .pricing-header h3 {
        color: var(--text-color);
    }
    
    .hero-description,
    .section-header p,
    .feature-card p,
    .pricing-header p {
        color: #cccccc;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        background: var(--card-bg);
        border-color: var(--border-color);
        color: var(--text-color);
    }
    
    .footer {
        background: #000000;
    }
}

/* Focus Styles for Accessibility */
.btn:focus,
.nav-link:focus,
.tab-button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #667eea;
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1001;
}

.skip-link:focus {
    top: 6px;
}

/* Screen Reader Only */
.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;
}