/* Responsive utilities and mobile-first optimizations */

/* Container queries for better responsive design */
@container (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
}

/* Touch-friendly optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px; /* Apple's recommended touch target */
        padding: var(--space-md) var(--space-lg);
    }
    
    .nav-link {
        padding: var(--space-sm) var(--space-md);
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .feature-card:hover,
    .future-card:hover {
        transform: none; /* Disable hover effects on touch devices */
    }
    
    /* Melhorias para elementos de formulário em dispositivos touch */
    .form-group select,
    .form-group input,
    .form-group textarea {
        min-height: 44px;
        font-size: 16px; /* Previne zoom automático no iOS */
        appearance: none;
        -webkit-appearance: none;
        -moz-appearance: none;
    }
    
    .form-group select {
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a8b3cf' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
        background-repeat: no-repeat;
        background-position: right 1rem center;
        background-size: 1rem;
        padding-right: 2.5rem;
        position: relative;
        z-index: 1;
    }
    
    .form-group select:focus,
    .form-group select[size],
    .form-group select[multiple] {
        background-image: none;
        z-index: 10;
    }
    
    .form-group select option {
        background-color: var(--bg-tertiary) !important;
        color: var(--text-primary) !important;
        padding: 0.75rem !important;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo,
    .footer-logo img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero-bg {
        animation: none;
    }
    
    .trading-card {
        animation: none;
    }
    
    .phone-mockup {
        animation: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    /* Already using dark theme by default */
}

/* Light mode alternative (if needed) */
@media (prefers-color-scheme: light) {
    /* Can add light theme overrides here if needed */
}

/* Print styles */
@media print {
    .header,
    .mobile-menu-btn,
    .hero-visual,
    .phone-mockup,
    .footer-social {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .section-title,
    .hero-brand {
        color: black !important;
        background: none !important;
        -webkit-text-fill-color: unset !important;
    }
}

/* Focus management for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent-cyan);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1001;
}

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

/* Better focus indicators */
*:focus {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 2px;
}

.btn:focus {
    outline-color: white;
}

/* Better touch feedback */
.btn:active {
    transform: scale(0.98);
}

/* Landscape phone optimization */
@media (max-width: 896px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding: var(--space-xl) 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }
    
    .hero-brand {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
}

/* Very small screens */
@media (max-width: 320px) {
    :root {
        --font-size-5xl: 1.5rem;
        --font-size-4xl: 1.25rem;
        --space-md: 0.75rem;
        --space-lg: 1rem;
        --space-xl: 1.25rem;
        --space-2xl: 1.5rem;
        --space-3xl: 2rem;
    }
    
    .container {
        padding: 0 var(--space-xs);
    }
    
    .trading-card {
        max-width: 200px;
        padding: var(--space-sm);
    }
    
    .phone-screen {
        width: 180px;
        height: 320px;
    }
    
    /* Correções específicas para formulários em telas muito pequenas */
    .form-group select,
    .form-group input,
    .form-group textarea {
        padding: 0.5rem 1.5rem 0.5rem 0.5rem;
        font-size: 14px;
        min-height: 40px;
    }
    
    .form-group select {
        background-size: 0.75rem;
        background-position: right 0.375rem center;
        padding-right: 1.5rem;
        position: relative;
        z-index: 1;
    }
    
    .form-group select:focus,
    .form-group select[size],
    .form-group select[multiple] {
        background-image: none;
        z-index: 10;
    }
    
    .form-group select option {
        padding: 0.25rem !important;
        font-size: 14px !important;
    }
}

/* Loading states */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--accent-cyan);
    animation: spin 1s ease-in-out infinite;
}

/* Error states */
.error-message {
    background: rgba(255, 107, 53, 0.1);
    border: 1px solid rgba(255, 107, 53, 0.3);
    color: var(--accent-orange);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin: var(--space-md) 0;
    text-align: center;
}

/* Success states */
.success-message {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: var(--accent-green);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin: var(--space-md) 0;
    text-align: center;
}

/* Progressive enhancement for modern browsers */
@supports (backdrop-filter: blur(20px)) {
    .header {
        backdrop-filter: blur(20px);
    }
    
    .trading-card,
    .feature-card,
    .future-card {
        backdrop-filter: blur(10px);
    }
}

@supports (display: grid) {
    .features-grid,
    .future-grid {
        display: grid;
    }
}

/* Fallback for older browsers */
@supports not (display: grid) {
    .features-grid,
    .future-grid {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-lg);
    }
    
    .feature-card,
    .future-card {
        flex: 1 1 calc(33.333% - var(--space-lg));
        min-width: 280px;
    }
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--accent-cyan);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-purple);
}

/* Firefox scrollbar */
html {
    scrollbar-width: thin;
    scrollbar-color: var(--accent-cyan) var(--bg-secondary);
}

/* Selection styles */
::selection {
    background: var(--accent-cyan);
    color: white;
}

::-moz-selection {
    background: var(--accent-cyan);
    color: white;
}

/* Correções preventivas para elementos select em responsive */
@media (max-width: 768px) {
    .form-group select {
        background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a8b3cf' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e") !important;
        background-repeat: no-repeat !important;
        background-position: right 0.5rem center !important;
        background-size: 1rem !important;
        padding-right: 2rem !important;
        position: relative;
        z-index: 1;
    }
    
    .form-group select:focus,
    .form-group select[size],
    .form-group select[multiple] {
        background-image: none !important;
        z-index: 10 !important;
    }
    
    .form-group select option {
        background-color: var(--bg-tertiary) !important;
        color: var(--text-primary) !important;
        padding: 0.5rem !important;
        display: block !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
    }
    
    .form-group select option::before,
    .form-group select option::after {
        display: none !important;
        content: none !important;
    }
}

@media (max-width: 480px) {
    .form-group select {
        font-size: 0.875rem !important;
        padding: 0.75rem 2rem 0.75rem 0.75rem !important;
        background-size: 0.875rem !important;
        background-position: right 0.5rem center !important;
    }
    
    .form-group select option {
        font-size: 0.875rem !important;
        padding: 0.375rem !important;
    }
}