/* ===== MOBILE STYLES ===== */
/* Mobile-specific styles extracted from main styles.css */

/* Mobile responsive start game section */
@media (max-width: 768px) {
    .start-game-section {
        min-height: auto !important;
        padding: var(--spacing-md) !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        height: 100% !important;
        transform: translateZ(0);
    }

    .start-game-content {
        max-width: 90%;
        padding: var(--spacing-lg);
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .start-game-icon {
        font-size: 3rem;
    }

    .start-game-title {
        font-size: var(--font-size-lg);
    }

    .start-game-btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-base);
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .start-game-btn:hover {
        transform: translateZ(0) !important;
    }

    .start-game-btn:active {
        transform: translateZ(0) scale(0.98);
    }

    .start-game-tips {
        gap: var(--spacing-xs);
    }

    .tip {
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 480px) {
    .start-game-section {
        min-height: auto !important;
        padding: var(--spacing-sm) !important;
        height: 100% !important;
    }

    .start-game-content {
        padding: var(--spacing-md);
    }

    .start-game-icon {
        font-size: 2.5rem;
    }

    .start-game-title {
        font-size: var(--font-size-base);
    }

    .start-game-description {
        font-size: var(--font-size-sm);
    }
}

/* Mobile Game Container and Layout */
@media (max-width: 768px) {
    .app {
        padding-bottom: 0;
        padding-top: var(--mobile-header-height) !important;
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .app::before {
        content: '';
        position: fixed;
        top: -20px;
        left: -20px;
        width: calc(100% + 40px);
        height: calc(100% + 40px);
        background: var(--gradient-background);
        opacity: 0.1;
        z-index: -1;
        pointer-events: none;
        transform: translateZ(0);
    }

    .header {
        padding: var(--spacing-sm) var(--spacing-md);
        height: var(--mobile-header-height);
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        z-index: 999998 !important;
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--gradient-subtle);
        opacity: 0.3;
        z-index: -1;
        transform: translateZ(0);
    }

    .header h1 {
        font-size: var(--font-size-lg);
        filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
    }

    .header-controls {
        gap: var(--spacing-xs);
    }

    .header-btn .btn-label {
        display: none;
    }

    .header-btn {
        min-width: 40px;
        min-height: 40px;
        padding: var(--spacing-xs);
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .header-btn:hover {
        transform: translateZ(0) !important;
    }

    .header-btn:active {
        transform: translateZ(0) scale(0.98);
    }

    .game-container {
        padding: var(--spacing-md);
        height: calc(100vh - var(--mobile-header-height) - var(--mobile-footer-height));
        min-height: calc(100vh - var(--mobile-header-height) - var(--mobile-footer-height));
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .cards-stack {
        max-width: 85%;
        height: 100%;
        transform: translateZ(0);
    }

    .cards-stack::before {
        content: '';
        position: absolute;
        top: 10px;
        left: 10px;
        right: 10px;
        bottom: 10px;
        background: var(--gradient-subtle);
        border-radius: var(--radius-xl);
        opacity: 0.3;
        z-index: -1;
        filter: blur(20px);
        transform: translateZ(0);
    }

    .game-controls {
        position: fixed;
        bottom: calc(var(--mobile-footer-height) + var(--spacing-sm));
        left: 50%;
        transform: translateX(-50%);
        z-index: 100;
        background: var(--color-bg-elevated);
        border-radius: var(--radius-xl);
        padding: var(--spacing-sm);
        box-shadow: var(--shadow-elevated);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .action-btn {
        min-width: 55px;
        min-height: 55px;
        padding: var(--spacing-sm);
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .action-btn:hover {
        transform: translateZ(0) !important;
    }

    .action-btn:active {
        transform: translateZ(0) scale(0.98);
    }

    .action-btn .btn-icon {
        font-size: var(--font-size-lg);
    }

    .action-btn .btn-text {
        font-size: 9px;
    }
}

@media (max-width: 480px) {
    .app {
        padding-bottom: 0;
        padding-top: 50px !important;
    }

    .header {
        padding: var(--spacing-xs) var(--spacing-sm);
        height: 50px;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        z-index: 999998 !important;
    }

    .header h1 {
        font-size: var(--font-size-base);
    }

    .header-btn {
        min-width: 36px;
        min-height: 36px;
        padding: var(--spacing-xs);
    }

    .game-container {
        padding: var(--spacing-sm);
        height: calc(100vh - 50px - 60px);
        min-height: calc(100vh - 50px - 60px);
    }

    .cards-stack {
        max-width: 95%;
        height: 100%;
    }

    .card {
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-lg);
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .card:hover {
        transform: translateZ(0) !important;
    }

    .card:active {
        transform: translateZ(0) scale(0.98);
    }

    .card-info {
        padding: var(--spacing-md);
    }

    .character-name {
        font-size: var(--font-size-lg);
    }

    .character-age {
        font-size: var(--font-size-sm);
    }

    .character-bio {
        font-size: var(--font-size-sm);
        line-height: 1.4;
    }

    .interest-tag {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .game-controls {
        bottom: calc(var(--mobile-footer-height) + var(--spacing-xs));
        padding: var(--spacing-xs);
        gap: var(--spacing-sm);
    }

    .action-btn {
        min-width: 50px;
        min-height: 50px;
        padding: var(--spacing-xs);
    }

    .action-btn .btn-icon {
        font-size: var(--font-size-base);
    }

    .action-btn .btn-text {
        font-size: 8px;
    }

    .swipe-indicator {
        font-size: var(--font-size-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* Extra Small Mobile */
@media (max-width: 320px) {
    .app {
        padding-bottom: 0;
        padding-top: 44px !important;
    }

    .header {
        padding: var(--spacing-xs);
        height: 44px;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        z-index: 999998 !important;
    }

    .header h1 {
        font-size: var(--font-size-sm);
    }

    .header-btn {
        min-width: 32px;
        min-height: 32px;
        padding: var(--spacing-xs);
    }

    .cards-stack {
        max-width: 98%;
        height: calc(100vh - 44px - 60px);
    }

    .card-info {
        padding: var(--spacing-sm);
    }

    .character-name {
        font-size: var(--font-size-base);
    }

    .character-age {
        font-size: var(--font-size-xs);
    }

    .character-bio {
        font-size: var(--font-size-xs);
        line-height: 1.3;
    }

    .interest-tag {
        font-size: 10px;
        padding: 4px 8px;
    }

    .game-controls {
        bottom: calc(var(--mobile-footer-height) + 5px);
        padding: var(--spacing-xs);
        gap: var(--spacing-xs);
    }

    .action-btn {
        min-width: 44px;
        min-height: 44px;
        padding: var(--spacing-xs);
    }

    .action-btn .btn-icon {
        font-size: var(--font-size-sm);
    }

    .action-btn .btn-text {
        font-size: 7px;
    }
}

/* Large Mobile / Small Tablet */
@media (min-width: 360px) and (max-width: 768px) {
    .app {
        padding-bottom: 0;
        padding-top: var(--mobile-header-height) !important;
    }
    
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        z-index: 999998 !important;
    }
    
    .header-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
    
    .game-container {
        padding: var(--spacing-md);
        height: calc(100vh - var(--mobile-header-height) - var(--mobile-footer-height));
        min-height: calc(100vh - var(--mobile-header-height) - var(--mobile-footer-height));
    }
    
    .cards-stack {
        max-width: 90%;
        height: 100%;
    }
    
    .card {
        border-radius: var(--radius-lg);
        transform: translateZ(0);
    }
    
    .game-controls {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .action-btn {
        min-width: 60px;
        min-height: 60px;
        padding: var(--spacing-sm);
    }
    
    .action-btn .btn-icon {
        font-size: var(--font-size-lg);
    }
    
    .action-btn .btn-text {
        font-size: var(--font-size-xs);
    }
}

/* Loading screens mobile optimization */
@media (max-width: 768px) {
    .loading-overlay {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .loading-container {
        padding: var(--spacing-md);
        max-width: 90%;
        background: var(--color-bg-elevated);
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-elevated);
        border: 1px solid var(--color-border-accent);
        transform: translateZ(0);
    }

    .loading-container p {
        font-size: var(--font-size-sm);
        text-align: center;
    }

    .loading-spinner {
        width: 20px;
        height: 20px;
        border-width: 2px;
        transform: translateZ(0);
    }

    .loading-progress {
        width: 150px;
        height: 3px;
        transform: translateZ(0);
    }

    .loading-progress-bar {
        background: var(--gradient-primary);
        transform: translateZ(0);
    }
}

/* Performance Optimizations for Mobile */
@media (max-width: 768px) {
    .card,
    .header-btn,
    .action-btn,
    .footer-tab {
        will-change: transform;
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    /* Simplify backgrounds for mobile performance */
    .header::before {
        background: var(--gradient-subtle);
        opacity: 0.2;
    }

    .card::before {
        background: var(--gradient-overlay);
        opacity: 0;
    }

    .card:hover::before {
        opacity: 0.03;
    }

    .header,
    .footer,
    .game-controls {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

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

    .card:hover {
        transform: translateZ(0) !important;
        box-shadow: var(--shadow-lg);
    }

    .header-btn:hover,
    .action-btn:hover,
    .footer-tab:hover {
        transform: translateZ(0) !important;
    }

    .header-btn:active,
    .action-btn:active,
    .footer-tab:active {
        transform: translateZ(0) scale(0.98);
    }
}

/* Reduce animations for mobile performance */
@media (prefers-reduced-motion: reduce) {
    .loading-spinner,
    .card,
    .header-btn,
    .action-btn,
    .footer-tab {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .card:hover,
    .header-btn:hover,
    .action-btn:hover {
        transform: translateZ(0) !important;
    }

    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Mobile-specific swipe enhancements */
@media (max-width: 768px) {
    .card {
        touch-action: pan-y;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        user-select: none;
    }

    .swipe-indicator {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        box-shadow: var(--shadow-lg);
        transform: translateZ(0);
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
    }

    .swipe-indicator.like {
        background: rgba(34, 197, 94, 0.9);
        box-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
    }

    .swipe-indicator.dislike {
        background: rgba(239, 68, 68, 0.9);
        box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
    }

    .swipe-indicator.info {
        background: rgba(59, 130, 246, 0.9);
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
    }

    .cards-stack {
        touch-action: pan-y;
        overscroll-behavior: contain;
    }
}