/* =================================================================
   RESPONSIVE ENHANCEMENTS - ADVANCED RESPONSIVE DESIGN FOR 2025
   Mobile-first responsive framework with modern techniques
   Created: 2025-01-25
   ================================================================= */

/* =================================================================
   CONTAINER QUERIES FOR COMPONENT-BASED RESPONSIVENESS
   ================================================================= */

@container (min-width: 320px) {
    .card {
        font-size: var(--text-sm);
    }
}

@container (min-width: 768px) {
    .card {
        font-size: var(--text-base);
    }
}

/* =================================================================
   FLUID TYPOGRAPHY SCALING
   ================================================================= */

:root {
    /* Fluid typography using clamp() for perfect scaling */
    --text-fluid-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
    --text-fluid-sm: clamp(0.875rem, 0.8rem + 0.3vw, 1rem);
    --text-fluid-base: clamp(1rem, 0.9rem + 0.4vw, 1.125rem);
    --text-fluid-lg: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
    --text-fluid-xl: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
    --text-fluid-2xl: clamp(1.5rem, 1.3rem + 0.8vw, 1.875rem);
    --text-fluid-3xl: clamp(1.875rem, 1.6rem + 1vw, 2.25rem);
    
    /* Fluid spacing system */
    --spacing-fluid-xs: clamp(0.25rem, 0.2rem + 0.2vw, 0.5rem);
    --spacing-fluid-sm: clamp(0.5rem, 0.4rem + 0.4vw, 0.75rem);
    --spacing-fluid-md: clamp(1rem, 0.8rem + 0.8vw, 1.5rem);
    --spacing-fluid-lg: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem);
    --spacing-fluid-xl: clamp(2rem, 1.6rem + 1.6vw, 3rem);
}

/* Apply fluid typography to key elements */
h1, .heading-1 { font-size: var(--text-fluid-3xl); }
h2, .heading-2 { font-size: var(--text-fluid-2xl); }
h3, .heading-3 { font-size: var(--text-fluid-xl); }
h4, .heading-4 { font-size: var(--text-fluid-lg); }
h5, .heading-5 { font-size: var(--text-fluid-base); }
h6, .heading-6 { font-size: var(--text-fluid-sm); }

body, .text-base { font-size: var(--text-fluid-base); }
.text-sm { font-size: var(--text-fluid-sm); }
.text-lg { font-size: var(--text-fluid-lg); }

/* =================================================================
   MOBILE-FIRST BREAKPOINTS
   ================================================================= */

/* Extra small devices (phones, 320px and up) */
@media (min-width: 320px) {
    .container {
        max-width: 100%;
        padding: var(--spacing-fluid-sm);
    }
    
    .card {
        margin: var(--spacing-fluid-xs);
        padding: var(--spacing-fluid-sm);
        border-radius: var(--radius-lg);
    }
    
    /* Touch-friendly sizing */
    button, .btn {
        min-height: 44px;
        min-width: 44px;
        padding: 12px 16px;
        font-size: var(--text-fluid-base);
        border-radius: var(--radius-lg);
    }
    
    /* Stack cards vertically on mobile */
    .card-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: var(--spacing-fluid-sm);
    }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
    .container {
        max-width: 540px;
        padding: var(--spacing-fluid-md);
    }
    
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-fluid-md);
    }
    
    /* Larger cards on landscape phones */
    .card {
        padding: var(--spacing-fluid-md);
    }
    
    /* Battle screen optimizations */
    .battle-screen {
        grid-template-rows: auto 1fr auto;
        gap: var(--spacing-fluid-sm);
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .container {
        max-width: 720px;
        padding: var(--spacing-fluid-lg);
    }
    
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-fluid-lg);
    }
    
    /* Tablet-optimized battle layout */
    .battle-field {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-fluid-lg);
    }
    
    .player-hand {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--spacing-fluid-sm);
    }
    
    /* Hybrid touch/mouse interactions */
    .card:hover {
        transform: translateY(-2px) scale(1.02);
        transition: all var(--animation-duration-medium) var(--animation-easing-spring);
    }
    
    /* Better modal sizing */
    .modal-content {
        max-width: 600px;
        margin: var(--spacing-fluid-xl) auto;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .container {
        max-width: 960px;
        padding: var(--spacing-fluid-xl);
    }
    
    .card-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-fluid-xl);
    }
    
    /* Desktop battle layout */
    .battle-screen {
        display: grid;
        grid-template-areas: 
            "opponent-info opponent-field opponent-field"
            "battle-log battle-field battle-field"
            "player-info player-field player-hand";
        grid-template-columns: 300px 1fr 300px;
        grid-template-rows: auto 1fr auto;
        gap: var(--spacing-fluid-lg);
        height: 100vh;
    }
    
    .opponent-info { grid-area: opponent-info; }
    .opponent-field { grid-area: opponent-field; }
    .battle-log { grid-area: battle-log; }
    .battle-field { grid-area: battle-field; }
    .player-info { grid-area: player-info; }
    .player-field { grid-area: player-field; }
    .player-hand { grid-area: player-hand; }
    
    /* Enhanced hover effects for desktop */
    .card:hover {
        transform: translateY(-4px) scale(1.05) rotateY(2deg);
        box-shadow: var(--shadow-strong);
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
    
    .card-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    /* Ultra-wide optimizations */
    .battle-screen {
        grid-template-columns: 350px 1fr 350px;
    }
    
    /* Larger cards for better visibility */
    .card {
        min-height: 200px;
    }
}

/* =================================================================
   ORIENTATION-SPECIFIC OPTIMIZATIONS
   ================================================================= */

/* Portrait orientation optimizations */
@media (orientation: portrait) {
    .battle-field {
        flex-direction: column;
    }
    
    .player-hand {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(var(--glass-blur));
        padding: var(--spacing-fluid-sm);
        z-index: 100;
    }
    
    /* Stack UI elements vertically */
    .ui-panels {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-fluid-sm);
    }
}

/* Landscape orientation optimizations */
@media (orientation: landscape) {
    .battle-field {
        flex-direction: row;
    }
    
    .player-hand {
        position: fixed;
        right: 0;
        top: 50%;
        transform: translateY(-50%);
        writing-mode: vertical-lr;
        background: var(--glass-bg);
        backdrop-filter: blur(var(--glass-blur));
        padding: var(--spacing-fluid-sm);
        z-index: 100;
    }
    
    /* Horizontal UI layout */
    .ui-panels {
        display: flex;
        flex-direction: row;
        gap: var(--spacing-fluid-lg);
    }
}

/* =================================================================
   ADAPTIVE TOUCH/MOUSE INTERFACES
   ================================================================= */

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    button, .btn, .card, [role="button"] {
        min-height: 48px;
        min-width: 48px;
        padding: 16px;
    }
    
    /* Remove hover effects, add active states */
    .card:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
    
    /* Larger text for readability */
    body {
        font-size: var(--text-lg);
        line-height: 1.6;
    }
    
    /* Touch-friendly navigation */
    .nav-menu {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        display: flex;
        background: var(--glass-bg);
        backdrop-filter: blur(var(--glass-blur));
        padding: var(--spacing-fluid-sm);
        z-index: 200;
    }
    
    .nav-menu button {
        flex: 1;
        margin: 0 var(--spacing-fluid-xs);
    }
}

/* Mouse/trackpad device optimizations */
@media (hover: hover) and (pointer: fine) {
    /* Precise hover effects */
    .card:hover {
        transform: translateY(-2px) scale(1.02);
        box-shadow: var(--shadow-moderate);
        transition: all var(--animation-duration-medium) var(--animation-easing-spring);
    }
    
    /* Cursor indicators */
    .card, button, .btn, [role="button"] {
        cursor: pointer;
    }
    
    .card[disabled], button[disabled], .btn[disabled] {
        cursor: not-allowed;
        opacity: 0.5;
    }
    
    /* Tooltip support */
    [data-tooltip] {
        position: relative;
    }
    
    [data-tooltip]:hover::after {
        content: attr(data-tooltip);
        position: absolute;
        bottom: 100%;
        left: 50%;
        transform: translateX(-50%);
        background: var(--glass-bg);
        color: var(--text-primary);
        padding: var(--spacing-fluid-xs) var(--spacing-fluid-sm);
        border-radius: var(--radius-md);
        font-size: var(--text-sm);
        white-space: nowrap;
        z-index: 1000;
        animation: fadeIn 0.2s ease;
    }
}

/* =================================================================
   HIGH-DPI DISPLAY OPTIMIZATIONS
   ================================================================= */

@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Crisp borders and shadows for retina displays */
    .card, .btn, .modal-content {
        border-width: 0.5px;
        box-shadow: 
            0 0.5px 1px rgba(0, 0, 0, 0.1),
            0 1px 2px rgba(0, 0, 0, 0.15);
    }
    
    /* High-resolution images */
    .card img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
    
    /* Precise text rendering */
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        text-rendering: optimizeLegibility;
    }
}

/* =================================================================
   REDUCED MOTION PREFERENCES
   ================================================================= */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    /* Disable particle effects */
    .card-particles::before,
    .particle-system {
        display: none !important;
    }
    
    /* Simplified hover effects */
    .card:hover {
        transform: none;
        box-shadow: var(--shadow-subtle);
    }
    
    /* Static loading indicators */
    .loading-skeleton {
        background: var(--glass-bg);
        animation: none;
    }
}

/* =================================================================
   PRINT STYLES
   ================================================================= */

@media print {
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
    
    .card {
        border: 1px solid black;
        page-break-inside: avoid;
        margin: 0.5cm;
    }
    
    .btn, button {
        border: 1px solid black;
        background: white;
    }
    
    /* Hide interactive elements */
    .modal-overlay,
    .toast-container,
    .loading-spinner {
        display: none !important;
    }
}

/* =================================================================
   PERFORMANCE OPTIMIZATIONS
   ================================================================= */

/* Low-end device optimizations */
@media (max-width: 480px) and (-webkit-max-device-pixel-ratio: 1) {
    .performance-low .card-particles,
    .performance-low .card-3d-hover,
    .performance-low [class*="animate"] {
        animation: none !important;
        transform: none !important;
        transition: none !important;
    }
    
    .performance-low .glass-panel {
        background: rgba(0, 0, 0, 0.8) !important;
        backdrop-filter: none !important;
    }
    
    /* Simplified shadows */
    .performance-low .card {
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3) !important;
    }
}

/* =================================================================
   ACCESSIBILITY ENHANCEMENTS
   ================================================================= */

/* Large text preferences */
@media (prefers-font-size: large) {
    :root {
        --text-scale: 1.25;
    }
    
    * {
        font-size: calc(var(--font-size, 1rem) * var(--text-scale));
    }
}

/* High contrast preferences */
@media (prefers-contrast: high) {
    .card, .btn, .modal-content {
        border-width: 2px;
        border-color: currentColor;
    }
    
    .glass-panel {
        background: rgba(0, 0, 0, 0.9);
        backdrop-filter: none;
    }
    
    /* Ensure adequate color contrast */
    :root {
        --text-primary: #ffffff;
        --bg-primary: #000000;
        --border-color: #ffffff;
    }
}

/* =================================================================
   CUSTOM MEDIA QUERIES FOR GAME-SPECIFIC BREAKPOINTS
   ================================================================= */

/* Card collection view optimizations */
@media (min-width: 1400px) {
    .card-collection {
        grid-template-columns: repeat(6, 1fr);
        gap: var(--spacing-fluid-lg);
    }
    
    .card-detail-modal {
        max-width: 800px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-fluid-xl);
    }
}

/* Ultra-wide display optimizations (21:9 and wider) */
@media (min-aspect-ratio: 21/9) {
    .battle-screen {
        grid-template-columns: 300px 1fr 300px 300px;
        grid-template-areas: 
            "opponent-info opponent-field battle-log sidebar"
            "player-info player-field player-hand sidebar";
    }
    
    .sidebar {
        grid-area: sidebar;
        display: flex;
        flex-direction: column;
        gap: var(--spacing-fluid-md);
    }
}

/* Foldable device optimizations */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
    .foldable-layout {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0;
        height: 100vh;
    }
    
    .fold-left {
        border-right: 1px solid var(--border-color);
    }
    
    .fold-right {
        border-left: 1px solid var(--border-color);
    }
}