/* Responsive Design */

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .nav-container {
        padding: 0 var(--space-md);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .spinoza-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }
    
    .series-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--space-lg);
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: var(--space-lg);
    }
}

/* Mobile (até 767px) */
@media (max-width: 767px) {
    :root {
        --space-xs: 0.25rem;
        --space-sm: 0.5rem;
        --space-md: 0.75rem;
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    /* Header Mobile */
    .nav-container {
        padding: 0 var(--space-md);
        position: relative;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-xl);
        transition: left var(--transition-normal);
        z-index: 1000;
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.25rem;
        padding: var(--space-md) var(--space-lg);
    }
    
    .nav-actions {
        position: absolute;
        right: 60px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .brand-title {
        font-size: 1.5rem;
    }
    
    .brand-subtitle {
        font-size: 0.75rem;
    }
    
    /* Search Mobile */
    .search-container {
        padding: 0 var(--space-md);
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .search-input {
        padding: var(--space-sm) var(--space-md);
    }
    
    .search-btn {
        padding: var(--space-sm) var(--space-md);
    }
    
    /* Hero Mobile */
    .hero {
        padding: var(--space-2xl) 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        justify-content: center;
        gap: var(--space-lg);
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .hero-actions {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        padding: var(--space-md);
    }
    
    .hero-visual {
        height: 300px;
    }
    
    /* Sections Mobile */
    .section-title {
        font-size: 2rem;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .series {
        padding: var(--space-2xl) 0;
    }
    
    .series-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .series-card {
        padding: var(--space-lg);
    }
    
    .card-title {
        font-size: 1.5rem;
    }
    
    .card-topics {
        justify-content: center;
    }
    
    /* Spinoza Mobile */
    .spinoza-section {
        padding: var(--space-2xl) 0;
    }
    
    .spinoza-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }
    
    .highlight {
        padding: var(--space-md);
        text-align: left;
    }
    
    .spinoza-quote {
        padding: var(--space-lg);
    }
    
    .spinoza-quote blockquote {
        font-size: 1.25rem;
    }
    
    /* Features Mobile */
    .features {
        padding: var(--space-2xl) 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .feature-card {
        padding: var(--space-lg);
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
    
    /* Footer Mobile */
    .footer {
        padding: var(--space-2xl) 0 var(--space-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-md);
    }
    
    .footer-links li {
        margin-bottom: 0;
    }
    
    /* Modal Mobile */
    .modal-content {
        width: 95%;
        margin: var(--space-md);
    }
    
    .modal-header {
        padding: var(--space-lg);
    }
    
    .modal-body {
        padding: var(--space-lg);
    }
    
    .progress-item {
        margin-bottom: var(--space-md);
    }
}

/* Mobile Small (até 480px) */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .stat {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--space-md);
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .card-title {
        font-size: 1.25rem;
    }
    
    .spinoza-quote blockquote {
        font-size: 1.125rem;
    }
    
    .feature-title {
        font-size: 1.125rem;
    }
    
    .footer-title {
        font-size: 1.25rem;
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: var(--space-xl) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-visual {
        height: 200px;
    }
    
    .nav-menu {
        flex-direction: row;
        flex-wrap: wrap;
        height: auto;
        padding: var(--space-xl);
    }
}

/* High DPI Displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-image {
        background-size: cover;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .floating-elements .element {
        animation: none;
    }
}

/* Dark Mode Responsive Adjustments */
@media (prefers-color-scheme: dark) {
    [data-theme="auto"] {
        --primary: #3b82f6;
        --primary-light: #60a5fa;
        --secondary: #fbbf24;
        --accent: #34d399;
        
        --gray-900: #f9fafb;
        --gray-800: #f3f4f6;
        --gray-700: #e5e7eb;
        --gray-600: #d1d5db;
        --gray-500: #9ca3af;
        --gray-400: #6b7280;
        --gray-300: #4b5563;
        --gray-200: #374151;
        --gray-100: #1f2937;
        --gray-50: #111827;
        --white: #111827;
    }
}

/* Print Styles */
@media print {
    .header,
    .nav,
    .search-bar,
    .hero-actions,
    .footer,
    .modal,
    .nav-toggle,
    .theme-toggle,
    .search-toggle {
        display: none !important;
    }
    
    .hero {
        background: none !important;
        color: black !important;
        padding: var(--space-lg) 0;
    }
    
    .series-card,
    .feature-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .spinoza-section {
        background: none !important;
        color: black !important;
    }
    
    .btn {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .section-title {
        font-size: 18pt;
    }
    
    .card-title {
        font-size: 14pt;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .series-card:hover,
    .feature-card:hover,
    .btn:hover {
        transform: none;
    }
}

/* Focus Styles for Keyboard Navigation */
.nav-link:focus,
.btn:focus,
.search-input:focus,
.modal-close:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .btn-outline {
        border-width: 3px;
    }
    
    .nav-link.active::after {
        height: 3px;
    }
    
    .progress-bar {
        border: 1px solid var(--gray-400);
    }
}