/**
 * Multiplayer Styles for TypeVortex
 * Modern, polished lobby UI with responsive design and accessibility
 * Handles opponent positions, player labels, and multiplayer-specific UI
 */

/* === OPPONENT CELLS === */
.matrix-cell.opponent {
    position: relative;
    animation: opponentPulse 1.5s ease-in-out infinite;
    box-shadow: 0 0 15px var(--opponent-color, #ff6b35);
    border: 2px solid var(--opponent-color, #ff6b35) !important;
    background: radial-gradient(
        circle at center,
        var(--opponent-color, #ff6b35) 0%,
        transparent 70%
    ) !important;
    z-index: 10;
}

.matrix-cell.opponent::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--opponent-color, #ff6b35);
    box-shadow: 0 0 10px var(--opponent-color, #ff6b35);
}

/* Animation for opponent cells */
@keyframes opponentPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* === PLAYER NAME LABELS === */
.player-name-label {
    position: absolute;
    padding: 3px 8px;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    border-radius: 4px;
    font-size: 11px;
    font-weight: bold;
    white-space: nowrap;
    pointer-events: none;
    border: 2px solid var(--player-color, #4caf50);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 15;
    animation: labelFadeIn 0.3s ease-out;
}

.player-name-label.current-player {
    background-color: var(--player-color, #4caf50);
    color: white;
    font-size: 12px;
    z-index: 16;
}

.player-name-label::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid var(--player-color, #4caf50);
}

@keyframes labelFadeIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* === MULTIPLAYER UI ELEMENTS === */
.room-info {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 10px 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.room-code {
    font-family: 'Courier New', monospace;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 2px;
}

.player-list {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.player-badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    border-radius: 20px;
    background-color: rgba(255, 255, 255, 0.2);
    font-size: 12px;
}

.player-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--player-color, #4caf50);
    margin-right: 5px;
}

.player-badge.is-host {
    background-color: rgba(255, 215, 0, 0.3);
}

.player-badge.is-host::after {
    content: ' 👑';
    margin-left: 3px;
}

/* === MODERN LOBBY DESIGN === */
.lobby-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-8);
    background: var(--color-background);
}

.lobby-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-8);
    padding-bottom: var(--spacing-4);
    border-bottom: 2px solid var(--color-border);
}

.lobby-header h2 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
}

/* === CONNECTION STATUS === */
.connection-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-warning);
    animation: statusPulse 2s ease-in-out infinite;
}

.connection-status.connected .status-indicator {
    background-color: var(--color-success);
    animation: none;
}

.connection-status.disconnected .status-indicator {
    background-color: var(--color-error);
}

.status-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* === LOADING STATE === */
.lobby-loading {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-8);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    margin: 0 auto var(--spacing-4);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* === SECTIONS === */
.room-list-section,
.join-room-section,
.waiting-room {
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-6);
    background: var(--color-surface);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.section-header h3 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

/* === ROOM GRID === */
.rooms-grid {
    display: grid;
    gap: var(--spacing-4);
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.no-rooms-message {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-4);
}

.empty-state {
    color: var(--color-text-secondary);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-4);
}

.empty-state h4 {
    margin: 0 0 var(--spacing-2) 0;
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
}

.empty-state p {
    margin: 0;
    font-size: var(--font-size-sm);
}

/* === JOIN ROOM FORM === */
.join-room-form {
    max-width: 400px;
}

.input-group {
    display: flex;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-2);
}

.input-group input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-background);
    color: var(--color-text-primary);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

.input-group input.valid {
    border-color: var(--color-success);
}

.input-group input.invalid {
    border-color: var(--color-error);
}

.join-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-3);
}

.error-message {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-2) var(--spacing-3);
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid var(--color-error);
    border-radius: 6px;
    margin-top: var(--spacing-2);
}

/* === PLAYER SLOTS === */
.players-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.player-slot {
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-4);
    text-align: center;
    position: relative;
    transition: all var(--duration-normal) var(--ease-out);
    min-height: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-2);
}

.player-slot.occupied {
    background: linear-gradient(135deg, 
        rgba(76, 175, 80, 0.1) 0%, 
        rgba(76, 175, 80, 0.05) 100%);
    border-color: rgba(76, 175, 80, 0.3);
}

.player-slot.host {
    background: linear-gradient(135deg, 
        rgba(255, 215, 0, 0.15) 0%, 
        rgba(255, 193, 7, 0.1) 100%);
    border-color: rgba(255, 193, 7, 0.4);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.2);
}

.player-slot.empty {
    opacity: 0.5;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255, 255, 255, 0.03) 10px,
        rgba(255, 255, 255, 0.03) 20px
    );
}

.player-slot .host-crown {
    position: absolute;
    top: -10px;
    right: -5px;
    font-size: 1.5rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    animation: crownFloat 2s ease-in-out infinite;
}

@keyframes crownFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.player-slot .player-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
}

.player-slot.empty .player-name {
    color: var(--color-text-disabled);
    font-style: italic;
}

.player-slot .player-status {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    padding: 2px 8px;
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.player-slot .player-status.ready {
    background: rgba(76, 175, 80, 0.2);
    color: #4caf50;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.player-slot .player-status.waiting {
    background: rgba(158, 158, 158, 0.1);
    color: var(--color-text-disabled);
    border: 1px solid rgba(158, 158, 158, 0.2);
}

.player-slot .player-status.host {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

/* === WAITING ROOM === */
.room-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid var(--color-border);
}

.room-code-display {
    position: relative;
}

.room-code-display label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2);
}

.room-code-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-background);
    border: 2px solid var(--color-primary);
    border-radius: 8px;
}

.room-code {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    letter-spacing: 3px;
    color: var(--color-primary);
}

.copy-btn {
    padding: var(--spacing-2);
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: var(--color-surface);
    color: var(--color-primary);
}

.copy-feedback {
    position: absolute;
    top: -30px;
    right: 0;
    background: var(--color-success);
    color: white;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: 4px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    animation: fadeInOut 2s ease-in-out;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0; transform: translateY(5px); }
    20%, 80% { opacity: 1; transform: translateY(0); }
}

.room-settings {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.setting-item label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.setting-item span {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

/* === PLAYERS SECTION === */
.players-section {
    margin-bottom: var(--spacing-6);
}

.players-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.players-header h4 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.player-count-badge {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: 12px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
}

.players-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-3);
}

.player-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.player-card.host {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
    color: white;
}

.player-card.ready {
    border-color: var(--color-success);
    background: rgba(76, 175, 80, 0.1);
}

.player-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    color: white;
    font-size: var(--font-size-sm);
}

.player-info {
    flex: 1;
    min-width: 0;
}

.player-name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
    word-break: break-word;
}

.player-card.host .player-name {
    color: white;
}

.player-status {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.player-card.host .player-status {
    color: rgba(255, 255, 255, 0.9);
}

.status-icon {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-text-disabled);
}

.player-card.ready .status-icon {
    background-color: var(--color-success);
}

.player-card.host .status-icon {
    background-color: var(--color-accent);
}

/* === WAITING STATUS === */
.waiting-status {
    text-align: center;
    padding: var(--spacing-6) var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.waiting-animation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.waiting-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-primary);
    animation: waitingPulse 1.4s ease-in-out infinite;
}

.waiting-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.waiting-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes waitingPulse {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1.2);
        opacity: 1;
    }
}

.waiting-status p {
    margin: 0 0 var(--spacing-2) 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

.ready-countdown {
    background: var(--color-success);
    color: white;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 6px;
    font-weight: var(--font-weight-semibold);
    display: inline-block;
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* === BUTTONS === */
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 8px;
    border: 2px solid var(--color-border);
    background: var(--color-background);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-icon:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-alpha);
}

.btn-large {
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    min-height: 48px;
    transition: all 0.3s ease;
}

.room-actions {
    display: flex;
    gap: var(--spacing-3);
    justify-content: center;
    flex-wrap: wrap;
}

.lobby-actions {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
    flex-wrap: wrap;
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--color-border);
}

/* === ROOM LIST === */
.room-item {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-4);
    background: var(--color-background);
    border-radius: 12px;
    border: 2px solid var(--color-border);
    transition: all 0.3s ease;
    cursor: pointer;
}

.room-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.room-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-3);
}

.room-details {
    flex: 1;
    min-width: 0;
}

.room-host {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-1);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.host-crown {
    color: var(--color-accent);
    font-size: var(--font-size-sm);
}

.room-id {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    color: var(--color-text-disabled);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.room-status-badge {
    background: var(--color-success);
    color: white;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: 12px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
}

.room-status-badge.waiting {
    background: var(--color-warning);
}

.room-status-badge.full {
    background: var(--color-error);
}

.room-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-2);
    padding-top: var(--spacing-2);
    border-top: 1px solid var(--color-border);
}

.room-info {
    display: flex;
    gap: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.room-info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.room-players {
    font-weight: var(--font-weight-medium);
}

.room-settings {
    font-size: var(--font-size-xs);
    color: var(--color-text-disabled);
}

.join-room-btn {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: 6px;
    border: 2px solid var(--color-primary);
    background: var(--color-primary);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.join-room-btn:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.join-room-btn:disabled {
    background: var(--color-text-disabled);
    border-color: var(--color-text-disabled);
    cursor: not-allowed;
    opacity: 0.6;
}

/* === PROGRESS INDICATORS === */
.opponent-progress {
    position: fixed;
    right: 20px;
    top: 100px;
    width: 200px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 100;
}

.opponent-progress-item {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.opponent-progress-bar {
    flex: 1;
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    margin-left: 10px;
    overflow: hidden;
}

.opponent-progress-fill {
    height: 100%;
    background: var(--player-color, #4caf50);
    transition: width 0.3s ease;
}

/* === GAME OVER RANKINGS === */
.ranking-list {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.ranking-item {
    display: flex;
    align-items: center;
    padding: 10px;
    margin-bottom: 8px;
    background: #f5f5f5;
    border-radius: 6px;
    border-left: 4px solid var(--player-color, #4caf50);
}

.ranking-position {
    font-size: 24px;
    font-weight: bold;
    margin-right: 15px;
    min-width: 40px;
    text-align: center;
}

.ranking-item.first .ranking-position {
    color: gold;
}

.ranking-item.second .ranking-position {
    color: silver;
}

.ranking-item.third .ranking-position {
    color: #cd7f32;
}

.ranking-player-name {
    flex: 1;
    font-weight: bold;
}

.ranking-stats {
    font-size: 12px;
    color: #666;
}

/* === DARK MODE ADJUSTMENTS === */
[data-theme="dark"] .room-item {
    background: var(--color-surface);
    border-color: var(--color-border);
}

[data-theme="dark"] .room-item:hover {
    border-color: var(--color-primary);
}

[data-theme="dark"] .opponent-progress {
    background: rgba(45, 45, 45, 0.95);
}

[data-theme="dark"] .player-name-label {
    background-color: rgba(45, 45, 45, 0.9);
}

[data-theme="dark"] .ranking-item {
    background: var(--color-surface);
}

/* === MOBILE RESPONSIVENESS === */
@media (max-width: 768px) {
    .lobby-container {
        padding: var(--spacing-4);
    }
    
    .lobby-header {
        flex-direction: column;
        gap: var(--spacing-3);
        align-items: stretch;
        text-align: center;
    }
    
    .lobby-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .connection-status {
        align-self: center;
    }
    
    .room-header {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .rooms-grid {
        grid-template-columns: 1fr;
    }
    
    .players-grid {
        grid-template-columns: 1fr;
    }
    
    .room-actions,
    .lobby-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-large {
        width: 100%;
        justify-content: center;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .input-group input {
        font-size: var(--font-size-lg);
        padding: var(--spacing-4);
        text-align: center;
    }
    
    .room-item-footer {
        flex-direction: column;
        gap: var(--spacing-2);
        align-items: stretch;
    }
    
    .room-info {
        justify-content: space-around;
    }
    
    .join-room-btn {
        width: 100%;
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    .player-name-label {
        font-size: 9px;
        padding: 2px 6px;
    }
    
    .opponent-progress {
        right: 10px;
        top: 60px;
        width: 150px;
    }
}

/* === TABLET ADJUSTMENTS === */
@media (max-width: 1024px) and (min-width: 769px) {
    .lobby-container {
        padding: var(--spacing-6);
    }
    
    .room-header {
        gap: var(--spacing-4);
    }
    
    .rooms-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .players-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
}

/* === TOUCH DEVICE IMPROVEMENTS === */
@media (hover: none) and (pointer: coarse) {
    .btn-icon {
        min-width: 44px;
        min-height: 44px;
    }
    
    .copy-btn {
        min-width: 44px;
        min-height: 44px;
    }
    
    .room-item {
        padding: var(--spacing-5);
    }
    
    .join-room-btn {
        min-height: 44px;
    }
    
    .input-group input {
        min-height: 44px;
    }
    
    /* Remove hover effects on touch devices */
    .room-item:hover {
        transform: none;
        box-shadow: var(--shadow-sm);
    }
    
    .btn-icon:hover,
    .copy-btn:hover {
        background: var(--color-background);
        color: var(--color-text-secondary);
    }
}