/* Shared Grid Layout */
.standard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(275px, 1fr));
    gap: 20px;
    width: 100%;
    overflow-y: auto;
    padding: 20px;
}

.theme-card {
    background: linear-gradient(145deg, #12121a, #0a0a0f);
    border: 1px solid #333;
    border-radius: 8px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
    min-height: 180px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.theme-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.15);
}

.theme-card.active {
    border: 2px solid var(--success);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.2);
    background: linear-gradient(145deg, rgba(0, 255, 136, 0.05), #0a0a0f);
}

.theme-card.locked {
    opacity: 0.5;
    filter: grayscale(1);
    cursor: not-allowed;
    background: repeating-linear-gradient(45deg, #08080c, #08080c 10px, #0f0f14 10px, #0f0f14 20px);
}

/* Color Preview Circles */
.theme-preview {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    background: rgba(0, 0, 0, 0.5);
    padding: 10px;
    border-radius: 20px;
    border: 1px solid #333;
}

.color-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 5px currentColor;
}

.theme-name {
    font-size: 1.2rem;
    font-weight: 900;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
    text-align: center;
}

.theme-status {
    font-size: 0.8rem;
    color: #888;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    text-align: center;
    font-family: 'Courier New', monospace;
}

.theme-card.active .theme-status {
    color: var(--success);
    font-weight: bold;
}

/* --- CHALLENGE CARDS (Matches Difficulty Cards) --- */
.challenge-card {
    background: linear-gradient(135deg, #1a0505 0%, #0f0505 100%);
    border: 1px solid #500;
    border-top: 3px solid #ff3366;
    border-radius: 6px;
    padding: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.challenge-card:hover {
    transform: translateY(-5px);
    border-color: #ff3366;
    box-shadow: 0 0 25px rgba(255, 51, 102, 0.2);
    background: linear-gradient(135deg, #2a0a0a 0%, #1a0505 100%);
}

.challenge-card.locked {
    filter: grayscale(1) brightness(0.5);
    pointer-events: none;
    border-top-color: #333;
}

.chal-name {
    color: #ff3366;
    font-size: 1.4rem;
    font-weight: 900;
    margin-bottom: 10px;
    text-transform: uppercase;
    text-shadow: 0 0 10px rgba(255, 51, 102, 0.4);
    letter-spacing: 1px;
}

.chal-desc {
    color: #ccc;
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 20px;
    flex-grow: 1;
}

.chal-req {
    font-size: 0.75rem;
    color: #666;
    background: rgba(0, 0, 0, 0.3);
    padding: 8px;
    border-radius: 4px;
    text-align: center;
    font-family: 'Courier New', monospace;
    border: 1px solid #331111;
}

.challenge-card:hover .chal-req {
    color: #fff;
    border-color: #ff3366;
    background: rgba(255, 51, 102, 0.1);
}

/* --- JUKEBOX STYLES --- */
#themes-screen, #jukebox-screen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.98);
    z-index: 3000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.options-container {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #12121a 0%, #0d0d12 100%);
    border: 2px solid var(--accent);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.1);
    overflow: hidden;
    position: relative;
}

.options-header {
    padding: 20px;
    border-bottom: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
}

.options-container h1 {
    font-size: 2.5rem;
    color: var(--accent);
    letter-spacing: 4px;
    text-shadow: 0 0 15px var(--accent-glow);
}

/* Jukebox List - Single List Layout */
.jukebox-list {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
    align-content: start;
    padding-bottom: 40px; 
}

.track-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid #333;
    border-radius: 6px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all 0.2s;
    position: relative;
}

.track-card:hover {
    border-color: #555;
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-2px);
}

.track-card.active {
    border-color: var(--success);
    background: rgba(0, 255, 136, 0.05);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.1);
}

.track-card.playing {
    border-color: var(--accent);
}

.track-card.locked {
    opacity: 0.5;
    pointer-events: none;
    border-style: dashed;
}

.track-header-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.track-tag {
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 4px;
    background: #222;
    color: #888;
    border: 1px solid #444;
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: 1px;
    flex-shrink: 0;
}

/* Specific Tag Colors */
.tag-menu {
    border-color: #888;
    color: #ccc;
}

.tag-game {
    border-color: var(--accent);
    color: var(--accent);
}

.tag-boss {
    border-color: #ff3366;
    color: #ff3366;
}

.tag-shop {
    border-color: #ffd700;
    color: #ffd700;
}

.tag-adventure {
    border-color: #bd00ff;
    color: #bd00ff;
}

.track-name {
    font-weight: 900;
    color: #fff;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.track-actions {
    display: flex;
    gap: 10px;
    margin-top: 5px;
}

.track-btn {
    flex: 1;
    padding: 6px;
    border: 1px solid #444;
    background: transparent;
    color: #ccc;
    font-size: 0.7rem;
    cursor: pointer;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: bold;
    transition: all 0.2s;
}

.track-btn:hover {
    border-color: #fff;
    color: #fff;
}

.track-btn.select-btn {
    border-color: var(--success);
    color: var(--success);
}

.track-btn.select-btn:hover {
    background: var(--success);
    color: #000;
}

/* --- JUKEBOX TABS --- */
.jukebox-tabs {
    display: flex;
    width: 100%;
    border-bottom: 1px solid #333;
    background: rgba(0,0,0,0.2);
}

.jukebox-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: #666;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: bold;
    padding: 15px 0;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    text-transform: uppercase;
}

.jukebox-tab:hover {
    color: #fff;
    background: rgba(255,255,255,0.05);
}

.jukebox-tab.active {
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
    text-shadow: 0 0 10px var(--accent-glow);
    background: rgba(0, 217, 255, 0.05);
}

/* Jukebox Content Pages */
.jukebox-page {
    display: none;
    width: 100%;
    height: 100%;
    overflow: hidden;
    flex-direction: column;
}

.jukebox-page.active {
    display: flex;
}

/* Modify existing jukebox-list to fit inside page */
.jukebox-list {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
    align-content: start;
    padding-bottom: 40px; 
    width: 100%;
}

/* Visualizer specific card adjustments */
.track-card.vis-card.active {
    border-color: var(--accent);
    background: rgba(0, 217, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.2);
}
#jukebox-screen.preview-mode {
    background: transparent !important;
    backdrop-filter: none !important;
    pointer-events: none; /* Click-through to game background */
}

/* 1. Strip the container styles */
#jukebox-screen.preview-mode .options-container {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    pointer-events: none;
}

/* 2. Hide the Interface Elements */
#jukebox-screen.preview-mode .options-header,
#jukebox-screen.preview-mode .jukebox-tabs,
#jukebox-screen.preview-mode .jukebox-page {
    display: none !important;
}

/* 3. Style and Show the Close Button */
#jb-preview-close-btn {
    display: none;
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.8);
    border: 2px solid #ff3366;
    color: #ff3366;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 4000;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    pointer-events: auto;
}

#jb-preview-close-btn:hover {
    background: #ff3366;
    color: #000;
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 0 30px #ff3366;
}

/* Force button visible in preview mode */
#jukebox-screen.preview-mode #jb-preview-close-btn {
    display: flex !important;
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
    0% { transform: scale(0); opacity: 0; }
    80% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1); }
}