/**
 * Responsive Styles - 반응형 디자인
 * Dependency Inversion Principle
 */

/* Mobile First Breakpoints */

/* Small Tablets (640px+) */
@media (min-width: 640px) {
    header h1 {
        font-size: 2.75rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

/* Tablets (768px+) */
@media (min-width: 768px) {
    body {
        padding: var(--spacing-xl);
    }

    header h1 {
        font-size: 3rem;
    }

    main {
        padding: var(--spacing-xl) 50px;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .modal-content {
        padding: var(--spacing-xl);
    }

    .player-modal-content {
        max-width: 900px;
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .container {
        max-width: 900px;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .filter-tabs {
        justify-content: center;
    }
}

/* Large Desktop (1280px+) */
@media (min-width: 1280px) {
    .container {
        max-width: 1000px;
    }

    header h1 {
        font-size: 3.5rem;
    }
}

/* Mobile Only (<640px) */
@media (max-width: 639px) {
    header {
        margin-bottom: var(--spacing-lg);
    }

    header h1 {
        font-size: 1.75rem;
        /* Smaller for mobile */
    }

    .subtitle {
        font-size: 0.9rem;
    }

    main {
        padding: 0;
        /* Let cards handle padding */
        max-width: 100%;
    }

    .card {
        padding: var(--spacing-md);
        /* Reduced padding inside cards */
        border-radius: var(--radius-lg);
        /* Slightly smaller radius */
    }

    .header-with-nav {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    /* Move Gallery Link to top right absolute or keep distinct */
    .header-actions {
        width: 100%;
        justify-content: center;
    }

    .input-group input {
        height: 50px;
        /* Slightly smaller input */
        font-size: 1rem;
        padding: 0 50px 0 20px;
    }

    .btn {
        width: 100%;
        min-height: 48px;
        font-size: 1rem;
    }

    .platform-grid {
        grid-template-columns: repeat(2, 1fr);
        /* 2 Columns is good */
        gap: var(--spacing-sm);
    }

    .platform-item {
        padding: var(--spacing-md);
    }

    .platform-icon {
        font-size: 1.25rem;
    }

    .youtube-selector {
        grid-template-columns: 1fr;
    }

    /* Gallery Grid Optimization for Mobile */
    .gallery-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        /* 2 columns for gallery feel */
        gap: var(--spacing-sm);
        /* tighter gap */
        padding-bottom: var(--spacing-xl);
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {

    .modal-content,
    .player-modal-content {
        max-height: 100vh;
        border-radius: 0;
    }

    .player-container video {
        max-height: 80vh;
    }
}

/* Touch Device Optimization */
@media (hover: none) and (pointer: coarse) {

    .btn,
    .filter-tab,
    .media-card,
    .action-btn {
        min-height: 44px;
        /* iOS Touch Target */
    }

    .clear-btn {
        width: 32px;
        height: 32px;
    }

    /* Remove hover effects on touch */
    .btn:hover:not(:disabled),
    .filter-tab:hover,
    .media-card:hover {
        transform: none;
    }

    /* Add active state instead */
    .btn:active:not(:disabled),
    .filter-tab:active,
    .media-card:active {
        opacity: 0.8;
    }
}

/* High DPI Screens */
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Dark Mode Support - Handled in base.css */

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
        padding: 0;
    }

    .install-prompt,
    .modal,
    .btn,
    button {
        display: none !important;
    }

    main {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}