* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            touch-action: manipulation;
        }

        body {
            margin: 0;
            padding: 0;
            min-height: 100vh;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7dd56f 100%);
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
            transition: background 0.5s ease;
        }

        body.custom-bg {
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

        .site-title {
            position: fixed;
            top: 20px;
            left: 20px;
            font-size: 18px;
            font-weight: 600;
            color: white;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            background: rgba(128, 128, 128, 0.3);
            backdrop-filter: blur(10px);
            padding: 10px 20px;
            border-radius: 12px;
            border: 1px solid rgba(128, 128, 128, 0.4);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            z-index: 10;
        }

        /* Bug Status Notification Bar */
        .bug-status-bar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 12px 20px;
            display: none;
            align-items: center;
            gap: 15px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            z-index: 10000;
            animation: slideDown 0.3s ease-out;
            transition: all 0.3s ease;
        }

        .bug-status-bar.show {
            display: flex;
        }

        .bug-status-bar.minimized {
            padding: 6px 20px;
            transform: translateY(-70%);
        }

        .bug-status-bar.minimized .bug-status-content {
            display: none;
        }

        .bug-status-bar.minimized .bug-status-legend {
            display: none;
        }

        .bug-status-bar.minimized:hover {
            transform: translateY(0);
        }

        @keyframes slideDown {
            from {
                transform: translateY(-100%);
            }
            to {
                transform: translateY(0);
            }
        }

        .bug-status-content {
            flex: 1;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .bug-status-text {
            flex: 1;
        }

        .bug-status-title {
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 4px;
        }

        .bug-status-details {
            font-size: 12px;
            opacity: 0.9;
        }

        .bug-progress-container {
            flex: 0 0 200px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            height: 8px;
            overflow: hidden;
        }

        .bug-progress-bar {
            height: 100%;
            background: #34c759;
            transition: width 0.5s ease;
            border-radius: 10px;
        }

        .bug-status-close,
        .bug-status-minimize {
            background: rgba(255, 255, 255, 0.2);
            border: none;
            color: white;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 16px;
            line-height: 1;
            transition: background 0.2s;
        }

        .bug-status-minimize {
            margin-right: 8px;
        }

        .bug-status-close:hover,
        .bug-status-minimize:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .bug-status-bar.minimized .bug-status-minimize {
            display: none;
        }

        .bug-status-bar.minimized .bug-all-issues {
            display: none;
        }

        .bug-status-maximize {
            background: rgba(255, 255, 255, 0.2);
            border: none;
            color: white;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 16px;
            line-height: 1;
            transition: background 0.2s;
            margin-right: 8px;
            display: none;
        }

        .bug-status-maximize:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .bug-status-bar.minimized .bug-status-maximize {
            display: block;
        }

        /* Bug Status Legend Dropdown */
        .bug-status-legend {
            position: relative;
            margin-left: 10px;
        }

        .bug-status-legend-button {
            background: rgba(255, 255, 255, 0.2);
            border: none;
            color: white;
            padding: 6px 12px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 500;
            transition: background 0.2s;
            white-space: nowrap;
        }

        .bug-status-legend-button:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .bug-status-legend-dropdown {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            background: white;
            border-radius: 8px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            padding: 12px;
            min-width: 250px;
            display: none;
            z-index: 10001;
        }

        .bug-status-legend-dropdown.show {
            display: block;
        }

        .bug-status-legend-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px;
            font-size: 12px;
            color: #1d1d1f;
        }

        .bug-status-legend-color {
            width: 32px;
            height: 20px;
            border-radius: 4px;
            flex-shrink: 0;
        }

        .bug-status-legend-text {
            flex: 1;
        }

        .bug-status-legend-percent {
            font-weight: 600;
            color: #666;
        }

        /* All Issues Dropdown */
        .bug-all-issues {
            position: relative;
            margin-left: 10px;
        }

        .bug-all-issues-button {
            background: rgba(255, 255, 255, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: white;
            padding: 6px 12px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 600;
            transition: background 0.2s;
            white-space: nowrap;
        }

        .bug-all-issues-button:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .bug-all-issues-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: white;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            padding: 8px;
            min-width: 350px;
            max-width: 500px;
            display: none;
            z-index: 10001;
            max-height: 400px;
            overflow-y: auto;
        }

        .bug-all-issues-dropdown.show {
            display: block;
        }

        .bug-all-issues-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px;
            margin-bottom: 8px;
            background: #f5f5f7;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }

        .bug-all-issues-item:last-child {
            margin-bottom: 0;
        }

        .bug-all-issues-item:hover {
            background: #e8e8ed;
        }

        .bug-all-issues-number {
            font-weight: 700;
            font-size: 14px;
            color: #007aff;
            min-width: 40px;
        }

        .bug-all-issues-info {
            flex: 1;
        }

        .bug-all-issues-title {
            font-size: 13px;
            font-weight: 600;
            color: #1d1d1f;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .bug-all-issues-date {
            font-size: 11px;
            color: #86868b;
        }

        .bug-all-issues-progress-container {
            width: 80px;
            height: 6px;
            background: #e5e5ea;
            border-radius: 3px;
            overflow: hidden;
        }

        .bug-all-issues-progress-bar {
            height: 100%;
            transition: width 0.3s ease;
            border-radius: 3px;
        }

        /* App Grid */
        .app-grid {
            position: relative;
            margin: 80px auto 100px 20px;
            display: grid;
            grid-template-columns: repeat(5, 80px);
            gap: 15px;
            max-width: 460px;
            z-index: 10;
            overflow: visible;
            padding: 10px;
            padding-bottom: 50px;
        }

        .app-icon {
            width: 80px;
            height: 80px;
            background: rgba(128, 128, 128, 0.35);
            backdrop-filter: blur(20px);
            border-radius: 18px;
            border: 1px solid rgba(128, 128, 128, 0.5);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            position: relative;
        }

        .app-icon:hover {
            transform: scale(0.9);
            background: rgba(255, 255, 255, 0.25);
        }

        .app-icon:hover .app-icon-label {
            opacity: 1;
            transform: translateY(-5px);
        }

        .app-icon:active {
            transform: scale(0.85);
        }

        .app-icon:active .app-icon-label {
            opacity: 1;
            transform: translateY(-7px);
        }

        /* School Mode Locked Apps */
        .app-icon.school-mode-locked {
            opacity: 0.5;
            filter: grayscale(100%);
        }

        .app-icon.school-mode-locked:hover {
            opacity: 0.6;
            transform: scale(0.95);
        }

        .app-icon.school-mode-locked:hover .app-icon-label {
            opacity: 1;
            transform: translateY(-3px);
        }

        .school-lock-badge {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 48px;
            z-index: 10;
            pointer-events: none;
        }

        .app-notification-badge {
            position: absolute;
            top: -5px;
            right: -5px;
            background: #ff3b30;
            color: white;
            border-radius: 10px;
            min-width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: bold;
            padding: 2px 6px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
            z-index: 15;
            pointer-events: none;
        }

        .app-icon-emoji {
            font-size: 40px;
        }

        .app-icon-label {
            position: absolute;
            bottom: -25px;
            font-size: 12px;
            color: white;
            font-weight: 500;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
            opacity: 0;
            transform: translateY(-5px);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        /* Game Modal */
        .game-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            display: none;
            align-items: center;
            justify-content: center;
            z-index: 2000;
        }

        .game-modal.open {
            display: flex;
        }

        /* Hide coin display when any modal is open */
        body:has(.modal.open) #coinBalanceDisplay,
        body:has(.game-modal.open) #coinBalanceDisplay,
        body:has(.modal-overlay[style*="display: block"]) #coinBalanceDisplay,
        body:has(.modal-overlay[style*="display: flex"]) #coinBalanceDisplay {
            display: none !important;
            visibility: hidden !important;
        }

        .game-container {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            padding: 20px;
            max-width: 90vw;
            max-height: 90vh;
            position: relative;
            overflow-y: auto;
            z-index: 2001;
            pointer-events: auto;
            transition: background 0.3s ease, color 0.3s ease;
        }

        body.dark-mode .game-container {
            background: rgba(30, 30, 40, 0.95);
            color: #ffffff;
        }

        .game-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }

        .game-title {
            font-size: 20px;
            font-weight: 600;
            color: #1d1d1f;
            transition: color 0.3s ease;
        }

        body.dark-mode .game-title {
            color: #ffffff;
        }

        .game-close {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.1);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            position: relative;
            z-index: 10000;
            pointer-events: auto;
            color: #1d1d1f;
            font-weight: bold;
            transition: all 0.2s ease;
            position: relative;
            z-index: 9999;
            pointer-events: auto;
        }

        .game-close:hover {
            background: rgba(0, 0, 0, 0.2);
        }

        .game-close:active {
            transform: scale(0.95);
        }

        #snakeCanvas, #pongCanvas, #froggerCanvas {
            border: 2px solid #333;
            border-radius: 10px;
            display: block;
        }

        .game-info {
            margin-top: 10px;
            text-align: center;
            font-size: 16px;
            color: #1d1d1f;
            font-weight: 500;
        }

        .clock-container {
            position: fixed;
            top: 20px;
            right: 20px;
            background: rgba(128, 128, 128, 0.3);
            backdrop-filter: blur(10px);
            padding: 15px 25px;
            border-radius: 12px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(128, 128, 128, 0.4);
        }

        .time {
            font-size: 18px;
            font-weight: bold;
            color: white;
            text-align: center;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
            cursor: pointer;
            user-select: none;
            z-index: 1;
        }

        .time:hover {
            opacity: 0.8;
        }

        .date {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.9);
            text-align: center;
            margin-top: 15px;
            margin-bottom: 10px;
            letter-spacing: 1px;
            display: none;
        }

        .seconds {
            color: white;
            font-size: 12px;
        }

        .progress-container {
            width: 3px;
            height: 24px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 2px;
            overflow: hidden;
            position: relative;
            display: inline-block;
            vertical-align: middle;
            margin: 0 8px;
        }

        .progress-bar {
            width: 100%;
            background: linear-gradient(180deg, #2a5298 0%, #7dd56f 100%);
            transition: height 0.3s ease;
            height: 0%;
            position: absolute;
            bottom: 0;
        }

        .clock-toggle {
            position: absolute;
            top: 5px;
            left: 5px;
            background: rgba(255, 255, 255, 0.2);
            border: none;
            border-radius: 50%;
            width: 20px;
            height: 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: white;
            transition: background 0.2s;
            z-index: 10;
        }

        .clock-toggle:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .analog-clock {
            display: none;
            width: 60px;
            height: 60px;
            position: relative;
            cursor: pointer;
            user-select: none;
        }

        .analog-clock:hover {
            opacity: 0.8;
        }

        .analog-clock.active {
            display: block;
        }

        .digital-clock {
            display: block;
        }

        .digital-clock.hidden {
            display: none;
        }

        .clock-face {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid rgba(255, 255, 255, 0.3);
            position: relative;
        }

        .clock-center {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 4px;
            height: 4px;
            background: white;
            border-radius: 50%;
            transform: translate(-50%, -50%);
            z-index: 5;
        }

        .clock-hand {
            position: absolute;
            bottom: 50%;
            left: 50%;
            transform-origin: bottom center;
            background: white;
            border-radius: 2px;
        }

        .hour-hand {
            width: 3px;
            height: 18px;
            margin-left: -1.5px;
            opacity: 0.8;
        }

        .minute-hand {
            width: 2px;
            height: 24px;
            margin-left: -1px;
            opacity: 0.9;
        }

        .second-hand {
            width: 1px;
            height: 26px;
            margin-left: -0.5px;
            background: #7dd56f;
        }

        .clock-number {
            position: absolute;
            width: 100%;
            height: 100%;
            text-align: center;
            font-size: 7px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: bold;
        }

        .clock-number span {
            display: inline-block;
            position: absolute;
            top: 5px;
            left: 50%;
            transform: translateX(-50%);
        }

        .timezone-selector {
            margin-top: 15px;
            text-align: center;
            display: none;
        }

        .timezone-selector label {
            display: block;
            color: rgba(255, 255, 255, 0.9);
            font-size: 12px;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }

        select {
            width: 100%;
            padding: 8px;
            font-size: 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.9);
            color: #1d1d1f;
            cursor: pointer;
            outline: none;
        }

        select option {
            background: white;
            color: #1d1d1f;
        }

        .expanded .date,
        .expanded .timezone-selector {
            display: block;
        }

        /* Apple Calendar Styles */
        .apple-calendar-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px;
            border-bottom: 1px solid rgba(0,0,0,0.08);
        }

        .apple-calendar-nav-btn {
            background: none;
            border: none;
            font-size: 24px;
            color: #007aff;
            cursor: pointer;
            padding: 4px 12px;
            border-radius: 6px;
            transition: background 0.2s;
        }

        .apple-calendar-nav-btn:hover {
            background: rgba(0,122,255,0.1);
        }

        .apple-calendar-month-year {
            font-size: 17px;
            font-weight: 600;
            color: #1d1d1f;
            flex: 1;
            text-align: center;
        }

        .apple-calendar-add-btn {
            background: #007aff;
            color: white;
            border: none;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }

        .apple-calendar-add-btn:hover {
            background: #0051d5;
        }

        .apple-calendar-weekdays {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            padding: 12px 16px;
            background: rgba(242,242,247,0.5);
            border-bottom: 1px solid rgba(0,0,0,0.08);
        }

        .apple-calendar-weekdays div {
            text-align: center;
            font-size: 11px;
            font-weight: 600;
            color: #86868b;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .apple-calendar-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 0;
            padding: 8px;
        }

        .apple-calendar-day {
            aspect-ratio: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding: 8px 4px;
            cursor: pointer;
            border-radius: 8px;
            position: relative;
            transition: background 0.2s;
        }

        .apple-calendar-day:hover {
            background: rgba(0,122,255,0.08);
        }

        .apple-calendar-day.other-month {
            opacity: 0.3;
        }

        .apple-calendar-day.today {
            background: #007aff;
            color: white;
        }

        .apple-calendar-day.today:hover {
            background: #0051d5;
        }

        .apple-calendar-day.selected {
            background: rgba(0,122,255,0.15);
            box-shadow: inset 0 0 0 2px #007aff;
        }

        .apple-calendar-day-number {
            font-size: 14px;
            font-weight: 500;
            color: #1d1d1f;
            margin-bottom: 4px;
        }

        .apple-calendar-day.today .apple-calendar-day-number {
            color: white;
        }

        .apple-calendar-day-events {
            display: flex;
            gap: 2px;
            flex-wrap: wrap;
            justify-content: center;
            max-width: 100%;
        }

        .apple-calendar-event-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: #007aff;
        }

        .apple-calendar-day.today .apple-calendar-event-dot {
            background: white;
        }

        .apple-calendar-events {
            border-top: 1px solid rgba(0,0,0,0.08);
            padding: 16px;
            max-height: 200px;
            overflow-y: auto;
        }

        .apple-calendar-events-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
            font-size: 13px;
            font-weight: 600;
            color: #1d1d1f;
        }

        .apple-calendar-close-btn {
            background: rgba(0,0,0,0.06);
            border: none;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            font-size: 12px;
            cursor: pointer;
            color: #1d1d1f;
            transition: background 0.2s;
        }

        .apple-calendar-close-btn:hover {
            background: rgba(0,0,0,0.12);
        }

        .apple-calendar-events-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .apple-calendar-event-item {
            background: rgba(0,122,255,0.08);
            border-left: 3px solid #007aff;
            padding: 10px;
            border-radius: 6px;
            font-size: 13px;
            color: #1d1d1f;
            position: relative;
        }

        .apple-calendar-event-title {
            font-weight: 600;
            margin-bottom: 4px;
        }

        .apple-calendar-event-desc {
            font-size: 12px;
            color: #86868b;
            margin-top: 4px;
        }

        .apple-calendar-event-delete {
            position: absolute;
            top: 8px;
            right: 8px;
            background: rgba(255,59,48,0.1);
            color: #ff3b30;
            border: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            font-size: 12px;
            cursor: pointer;
            display: none;
            align-items: center;
            justify-content: center;
        }

        .apple-calendar-event-item:hover .apple-calendar-event-delete {
            display: flex;
        }

        .apple-calendar-event-delete:hover {
            background: rgba(255,59,48,0.2);
        }

        /* Settings Button */
        .settings-button {
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 60px;
            height: 60px;
            background: rgba(128, 128, 128, 0.35);
            backdrop-filter: blur(20px);
            border-radius: 15px;
            border: 1px solid rgba(128, 128, 128, 0.5);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .settings-button:hover {
            background: rgba(128, 128, 128, 0.5);
            transform: scale(0.9);
        }

        .settings-button:hover .settings-label {
            opacity: 1;
            transform: translateY(0);
        }

        .settings-button:active {
            transform: scale(0.85);
        }

        .settings-icon {
            width: 30px;
            height: 30px;
            fill: white;
            transition: transform 0.3s ease;
        }

        .settings-button:hover .settings-icon {
            transform: rotate(45deg);
        }

        .settings-label {
            position: absolute;
            top: -30px;
            font-size: 12px;
            color: white;
            font-weight: 500;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
            opacity: 0;
            transform: translateY(5px);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        /* Edit Mode Button */
        .edit-mode-button {
            position: fixed;
            bottom: 20px;
            left: 20px;
            width: 60px;
            height: 60px;
            background: rgba(128, 128, 128, 0.35);
            backdrop-filter: blur(20px);
            border-radius: 15px;
            border: 1px solid rgba(128, 128, 128, 0.5);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 500;
        }

        .edit-mode-button:hover {
            background: rgba(128, 128, 128, 0.5);
            transform: scale(0.9);
        }

        .edit-mode-button:hover .edit-label {
            opacity: 1;
            transform: translateY(0);
        }

        .edit-mode-button:hover .edit-icon {
            transform: rotate(45deg);
        }

        .edit-mode-button.active {
            background: rgba(255, 149, 0, 0.5);
            border: 1px solid rgba(255, 149, 0, 0.7);
        }

        .edit-mode-button:active {
            transform: scale(0.85);
        }

        .edit-icon {
            width: 30px;
            height: 30px;
            fill: white;
            transition: transform 0.3s ease;
        }

        .edit-label {
            position: absolute;
            top: -40px;
            left: 50%;
            transform: translateX(-50%) translateY(10px);
            background: rgba(0, 0, 0, 0.8);
            color: white;
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: all 0.3s ease;
        }

        /* Edit mode styling */
        body.edit-mode .app-icon {
            animation: wiggle 0.5s ease-in-out infinite;
        }

        @keyframes wiggle {
            0%, 100% { transform: rotate(-2deg); }
            50% { transform: rotate(2deg); }
        }

        body.edit-mode .app-icon::after {
            content: '';
            position: absolute;
            inset: -2px;
            border: 2px dashed rgba(255, 149, 0, 0.5);
            border-radius: 18px;
            pointer-events: none;
        }

        /* Edit Mode Controls Panel */
        .edit-controls-panel {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            max-width: 90%;
            background: rgba(128, 128, 128, 0.95);
            backdrop-filter: blur(30px);
            border-radius: 15px;
            border: 1px solid rgba(128, 128, 128, 0.5);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            padding: 15px 20px;
            display: none;
            flex-direction: row;
            gap: 20px;
            align-items: center;
            z-index: 500;
        }

        body.edit-mode .edit-controls-panel {
            display: flex;
        }

        .edit-controls-panel h3 {
            margin: 0;
            font-size: 14px;
            color: white;
            font-weight: 600;
            white-space: nowrap;
        }

        .edit-control-item {
            display: flex;
            flex-direction: row;
            gap: 8px;
            align-items: center;
        }

        .edit-control-label {
            display: flex;
            gap: 5px;
            align-items: center;
            font-size: 12px;
            color: white;
            font-weight: 500;
            white-space: nowrap;
        }

        .edit-control-value {
            color: rgba(255, 149, 0, 1);
            font-weight: 600;
            min-width: 45px;
            text-align: right;
        }

        .edit-control-item input[type="range"] {
            width: 120px;
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.2);
            outline: none;
            -webkit-appearance: none;
        }

        .edit-control-item input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: rgba(255, 149, 0, 1);
            cursor: pointer;
        }

        .edit-control-item input[type="range"]::-moz-range-thumb {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: rgba(255, 149, 0, 1);
            cursor: pointer;
            border: none;
        }

        .edit-hint {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.7);
            text-align: center;
            margin-top: 5px;
        }

        .mobile-apps-toggle {
            display: none;
            background: rgba(255, 149, 0, 0.9);
            border: none;
            border-radius: 10px;
            padding: 8px 12px;
            color: white;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .app-grid {
                grid-template-columns: repeat(4, 80px);
                max-width: 365px;
            }

            .mobile-apps-toggle {
                display: flex;
            }

            .edit-controls-panel {
                flex-wrap: wrap;
                justify-content: center;
            }

            #editModeLayoutEditor {
                top: auto !important;
                bottom: 0 !important;
                left: 0 !important;
                right: 0 !important;
                transform: none !important;
                max-width: 100% !important;
                max-height: 60vh !important;
                border-radius: 20px 20px 0 0 !important;
                transition: transform 0.3s ease;
            }

            #editModeLayoutEditor.collapsed {
                transform: translateY(100%) !important;
            }
        }

        /* Settings Panel */
        .settings-panel {
            position: fixed;
            bottom: -100%;
            left: 50%;
            transform: translateX(-50%);
            width: 90%;
            max-width: 500px;
            max-height: 70vh;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(30px);
            border-radius: 20px 20px 0 0;
            box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.3);
            transition: bottom 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
            overflow-y: auto;
            z-index: 1000;
        }

        .settings-panel.open {
            bottom: 0;
        }

        .settings-header {
            padding: 25px 20px 20px 20px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(30px);
            z-index: 1;
        }

        .settings-title {
            font-size: 22px;
            font-weight: 600;
            color: #1d1d1f;
            margin: 0;
        }

        .close-button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            color: white;
            font-size: 20px;
            font-weight: bold;
        }

        .close-button:hover {
            background: rgba(0, 0, 0, 0.8);
        }

        .settings-content {
            padding: 20px;
        }

        .settings-section {
            margin-bottom: 30px;
        }

        .settings-section-title {
            font-size: 14px;
            font-weight: 600;
            color: #6e6e73;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .settings-option {
            background: white;
            border-radius: 12px;
            padding: 15px;
            margin-bottom: 10px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        }

        .settings-option label {
            display: block;
            font-size: 16px;
            color: #1d1d1f;
            margin-bottom: 10px;
            font-weight: 500;
        }

        .color-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
            gap: 10px;
        }

        .color-option {
            aspect-ratio: 1;
            border-radius: 10px;
            cursor: pointer;
            border: 3px solid transparent;
            transition: all 0.2s ease;
        }

        .color-option:hover {
            transform: scale(1.1);
        }

        .color-option.selected {
            border-color: rgba(0, 0, 0, 0.3);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        .gradient-option {
            aspect-ratio: 2;
            border-radius: 10px;
            cursor: pointer;
            border: 3px solid transparent;
            transition: all 0.2s ease;
        }

        .gradient-option:hover {
            transform: scale(1.05);
        }

        .gradient-option.selected {
            border-color: rgba(0, 0, 0, 0.3);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        .image-upload {
            display: block;
            width: 100%;
            padding: 15px;
            background: #007aff;
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .image-upload:hover {
            background: #0051d5;
        }

        .image-upload:active {
            transform: scale(0.98);
        }

        /* Apple Messages-Style CSS */
        .messages-container {
            background: #ffffff;
            padding: 16px;
        }

        /* Apple Messages Send Button Hover Effect */
        #sendMessageBtn:hover {
            background: #0051d5 !important;
            transform: scale(1.05);
        }

        #sendMessageBtn:active {
            transform: scale(0.95);
        }

        .message-row {
            display: flex;
            margin-bottom: 8px;
            align-items: flex-end;
        }

        .message-row.sent {
            justify-content: flex-end;
        }

        .message-row.received {
            justify-content: flex-start;
        }

        .message-bubble {
            max-width: 65%;
            padding: 10px 14px;
            border-radius: 18px;
            word-wrap: break-word;
            overflow-wrap: break-word;
            word-break: break-word;
            position: relative;
            animation: messageFadeIn 0.2s ease-out;
            box-sizing: border-box;
        }

        @keyframes messageFadeIn {
            from {
                opacity: 0;
                transform: scale(0.95) translateY(5px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        .message-bubble.sent {
            background: #007aff;
            color: white;
            border-bottom-right-radius: 4px;
        }

        .message-bubble.received {
            background: #e5e5ea;
            color: #000;
            border-bottom-left-radius: 4px;
        }

        .message-bubble.admin {
            background: linear-gradient(135deg, #ff9500 0%, #ff6b00 100%);
            color: white;
            border-radius: 18px;
            border: 2px solid #ff6b00;
        }

        .message-row.admin {
            justify-content: center;
        }

        .admin-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.3);
            padding: 2px 8px;
            border-radius: 10px;
            font-size: 10px;
            font-weight: 700;
            margin-bottom: 4px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .message-bubble.admin-anonymous {
            background: linear-gradient(135deg, #ff9500 0%, #ff6b00 100%);
            color: white;
            border: 1px solid #ff6b00;
        }

        .message-sender-name {
            font-size: 11px;
            font-weight: 600;
            margin-bottom: 3px;
            opacity: 0.7;
        }

        .message-text {
            font-size: 15px;
            line-height: 1.4;
        }

        .message-timestamp {
            font-size: 10px;
            opacity: 0.6;
            margin-top: 4px;
            text-align: right;
        }

        .conversation-item-wrapper {
            position: relative;
            overflow: hidden;
        }

        .conversation-item {
            padding: 12px 16px;
            border-bottom: 0.5px solid #e5e5ea;
            cursor: pointer;
            transition: background 0.15s ease, transform 0.3s ease;
            display: flex;
            align-items: center;
            gap: 12px;
            position: relative;
            background: white;
        }

        .conversation-item:hover {
            background: #f5f5f5;
        }

        .conversation-item:active {
            background: #e5e5ea;
        }

        .conversation-item.selected {
            background: #e8f0fe;
        }

        .conversation-delete-btn {
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            width: 80px;
            background: #ff3b30;
            color: white;
            border: none;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .conversation-delete-btn:hover {
            background: #ff2d21;
        }

        .conversation-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 18px;
            flex-shrink: 0;
        }

        .conversation-content {
            flex: 1;
            min-width: 0;
        }

        .conversation-header {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 2px;
        }

        .conversation-name {
            font-weight: 600;
            font-size: 15px;
            color: #000;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .conversation-time {
            font-size: 13px;
            color: #8e8e93;
            flex-shrink: 0;
            margin-left: 8px;
        }

        .conversation-preview {
            font-size: 14px;
            color: #8e8e93;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .conversation-badge {
            width: 20px;
            height: 20px;
            background: #007aff;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .message-input-container {
            display: flex;
            gap: 8px;
            padding: 12px 16px;
            border-top: 0.5px solid #e5e5ea;
            background: white;
            align-items: center;
        }

        .message-input {
            flex: 1;
            padding: 8px 14px;
            border: 1px solid #e5e5ea;
            border-radius: 20px;
            outline: none;
            font-size: 15px;
            background: #f5f5f5;
            transition: background 0.2s ease;
        }

        .message-input:focus {
            background: white;
            border-color: #007aff;
        }

        .message-send-btn {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #007aff;
            border: none;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            flex-shrink: 0;
        }

        .message-send-btn:hover {
            background: #0051d5;
            transform: scale(1.05);
        }

        .message-send-btn:active {
            transform: scale(0.95);
        }

        .message-send-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        #imageInput {
            display: none;
        }

        .draggable-app {
            width: 100px;
            height: 100px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 18px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 2px solid transparent;
            position: relative;
        }

        .draggable-app:hover:not(.selected) {
            transform: scale(1.05);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            border: 2px solid #007aff;
        }

        .draggable-app.selected {
            border: 3px solid #34c759;
            background: rgba(52, 199, 89, 0.2);
            box-shadow: 0 0 20px rgba(52, 199, 89, 0.5);
            transform: scale(0.95);
        }

        /* Highlight app icons in edit mode for selection */
        body.edit-mode .app-icon {
            cursor: pointer;
        }

        body.edit-mode .app-icon.selected {
            border: 3px solid #34c759;
            box-shadow: 0 0 20px rgba(52, 199, 89, 0.5);
            transform: scale(0.95);
        }

        body.edit-mode .app-icon.selected::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: #34c759;
            opacity: 0.4;
            border-radius: 18px;
            pointer-events: none;
            z-index: 1;
        }

        body.edit-mode .app-icon.selected .app-icon-emoji,
        body.edit-mode .app-icon.selected .app-icon-label {
            position: relative;
            z-index: 2;
        }

        body.edit-mode .app-icon:hover:not(.selected) {
            /* No border change on hover in edit mode */
        }

        .draggable-app-emoji {
            font-size: 40px;
            margin-bottom: 5px;
        }

        .draggable-app-name {
            font-size: 12px;
            color: #1d1d1f;
            font-weight: 500;
        }

        /* Mobile Controls */
        .mobile-btn {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 24px;
            font-weight: bold;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            transition: all 0.2s;
            user-select: none;
            -webkit-user-select: none;
            -webkit-tap-highlight-color: transparent;
        }

        .mobile-btn:active {
            transform: scale(0.95);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        /* Mobile Responsiveness */
        @media (max-width: 768px) {
            .game-container {
                max-width: 95vw !important;
                max-height: 95vh !important;
                padding: 15px !important;
            }

            canvas {
                max-width: 100% !important;
                height: auto !important;
            }

            #snakeCanvas, #froggerCanvas {
                width: 90vw !important;
                max-width: 400px !important;
            }

            #othelloCanvas {
                display: block;
                margin: 0 auto;
            }

            #boardGameCanvas {
                width: 90vw !important;
                max-width: 500px !important;
            }

            .image-upload {
                font-size: 14px !important;
                padding: 12px 20px !important;
            }

            .game-title {
                font-size: 22px !important;
            }

            .app-grid {
                padding: 10px !important;
            }

            /* Show mobile controls on mobile devices */
            .mobile-controls {
                display: block !important;
            }

            /* Mobile-responsive Operator Panel */
            #operatorModal .game-container {
                max-width: 100vw !important;
                max-height: 100vh !important;
                margin: 0 !important;
            }

            #operatorModal h3 {
                font-size: 16px !important;
            }

            #operatorModal #activeGamesList,
            #operatorModal #allUsersList {
                max-height: 300px !important;
            }

            #operatorModal .image-upload {
                font-size: 12px !important;
                padding: 10px !important;
            }

            /* Mobile-responsive Messages App */
            #messagesModal .game-container {
                max-width: 100vw !important;
                height: 100vh !important;
            }

            /* On mobile, hide conversation list when chat is active */
            #messagesModal #conversationListPanel {
                width: 100% !important;
                border-right: none !important;
            }

            #messagesModal #messageViewPanel {
                position: absolute !important;
                top: 0 !important;
                left: 0 !important;
                right: 0 !important;
                bottom: 0 !important;
                width: 100% !important;
            }

            /* Hide conversation list when chat is active on mobile */
            #messagesModal.mobile-chat-active #conversationListPanel {
                display: none !important;
            }

            /* Show back button on mobile */
            #messagesModal #mobileBackToConversations {
                display: inline-flex !important;
            }

            /* Make clock smaller and keep in top right on mobile */
            .clock-container {
                top: 10px !important;
                right: 10px !important;
                padding: 8px 12px !important;
                min-width: auto !important;
                border-radius: 10px !important;
            }

            .time {
                font-size: 18px !important;
                letter-spacing: 1px !important;
                gap: 4px !important;
            }

            .seconds {
                font-size: 10px !important;
            }

            .date {
                font-size: 10px !important;
            }

            .progress-container {
                width: 3px !important;
            }

            /* Always show app names on mobile */
            .app-icon-label {
                opacity: 1 !important;
                transform: translateX(-50%) !important;
                font-size: 10px !important;
                bottom: 8px !important;
                left: 50% !important;
                color: #000000 !important;
                text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8) !important;
            }
        }

        /* Apple-Style Notifications */
        .notification {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 14px;
            padding: 16px 20px;
            margin-bottom: 12px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            gap: 12px;
            animation: slideInFromTop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            cursor: pointer;
            transition: all 0.2s ease;
            border: 1px solid rgba(0, 0, 0, 0.1);
        }

        .notification:hover {
            transform: scale(1.02);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2), 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .notification.removing {
            animation: slideOutToTop 0.3s cubic-bezier(0.55, 0.085, 0.68, 0.53) forwards;
        }

        .notification-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .notification-icon.success {
            background: #34c759;
        }

        .notification-icon.error {
            background: #ff3b30;
        }

        .notification-icon.info {
            background: #007aff;
        }

        .notification-icon.warning {
            background: #ff9500;
        }

        .notification-content {
            flex: 1;
            min-width: 0;
        }

        .notification-title {
            font-weight: 600;
            font-size: 14px;
            color: #1d1d1f;
            margin-bottom: 2px;
        }

        .notification-message {
            font-size: 13px;
            color: #6e6e73;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        @keyframes slideInFromTop {
            from {
                transform: translateY(-100px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        @keyframes slideOutToTop {
            from {
                transform: translateY(0);
                opacity: 1;
            }
            to {
                transform: translateY(-100px);
                opacity: 0;
            }
        }

/* ========================================
   COMPREHENSIVE MOBILE RESPONSIVENESS
   ======================================== */

/* Enhanced Mobile Styles for All Devices */
@media (max-width: 768px) {
    /* General Mobile Optimizations */
    body {
        font-size: 16px; /* Prevent iOS zoom on focus */
        -webkit-text-size-adjust: 100%;
    }

    /* Touch-friendly button sizing */
    button, .btn, .mobile-btn, input[type="button"], input[type="submit"] {
        min-height: 44px !important; /* Apple's recommended touch target */
        min-width: 44px !important;
        padding: 12px 16px !important;
        font-size: 16px !important;
    }

    /* Modal improvements */
    .modal {
        width: 100% !important;
        height: 100% !important;
        max-width: 100vw !important;
        max-height: 100vh !important;
        margin: 0 !important;
        border-radius: 0 !important;
    }

    .modal-content {
        width: 100% !important;
        height: 100% !important;
        max-width: 100vw !important;
        max-height: 100vh !important;
        padding: 10px !important;
        border-radius: 0 !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
    }

    /* Special Game Modal (Level Creator) */
    #specialGameModal .modal-content {
        width: 100vw !important;
        height: 100vh !important;
        padding: 5px !important;
    }

    /* Level Creator Mobile Optimizations */
    #levelCreatorContainer {
        display: flex !important;
        flex-direction: column !important;
        height: 100vh !important;
        overflow: hidden !important;
    }

    #blockPalette {
        width: 100% !important;
        height: 150px !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        flex-shrink: 0 !important;
        -webkit-overflow-scrolling: touch !important;
    }

    #workspace {
        flex: 1 !important;
        overflow: auto !important;
        -webkit-overflow-scrolling: touch !important;
        min-height: 300px !important;
    }

    #stage {
        width: 100% !important;
        height: 200px !important;
        flex-shrink: 0 !important;
    }

    /* Level Creator Controls */
    .lc-toolbar, .lc-controls {
        flex-wrap: wrap !important;
        gap: 8px !important;
        padding: 8px !important;
    }

    .lc-toolbar button, .lc-controls button {
        font-size: 14px !important;
        padding: 10px 14px !important;
    }

    /* Form inputs */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    textarea,
    select {
        font-size: 16px !important; /* Prevent zoom on iOS */
        padding: 12px !important;
        min-height: 44px !important;
    }

    /* Calendar and date picker */
    .calendar-container {
        width: 100% !important;
        padding: 10px !important;
    }

    .calendar-grid {
        font-size: 14px !important;
    }

    .calendar-day {
        min-height: 40px !important;
        font-size: 12px !important;
    }

    /* Login/Auth modals */
    .auth-modal, .login-modal, .register-modal {
        width: 100% !important;
        max-width: 100vw !important;
        padding: 20px 15px !important;
    }

    .auth-form {
        width: 100% !important;
    }

    /* Messaging interface */
    .message-container {
        height: calc(100vh - 100px) !important;
    }

    .message-list {
        max-height: 50vh !important;
    }

    .message-input {
        font-size: 16px !important;
        padding: 12px !important;
    }

    /* Bug report interface */
    .bug-report-modal {
        width: 100% !important;
        height: 100% !important;
        padding: 15px !important;
    }

    .bug-status-bar {
        font-size: 13px !important;
        padding: 10px !important;
    }

    /* Study tools */
    .study-container {
        padding: 15px 10px !important;
    }

    .flashcard {
        width: 100% !important;
        min-height: 200px !important;
        font-size: 18px !important;
    }

    /* Game modals */
    .game-modal {
        width: 100% !important;
        height: 100% !important;
        padding: 10px !important;
    }

    .game-controls {
        flex-direction: column !important;
        gap: 10px !important;
    }

    .game-controls button {
        width: 100% !important;
    }

    /* Navigation improvements */
    nav, .nav-bar, header {
        flex-wrap: wrap !important;
        padding: 10px !important;
    }

    .nav-links {
        flex-direction: column !important;
        width: 100% !important;
        gap: 5px !important;
    }

    /* Tables */
    table {
        font-size: 14px !important;
    }

    th, td {
        padding: 8px 5px !important;
    }

    /* Site title */
    .site-title {
        font-size: 24px !important;
        padding: 10px !important;
    }

    /* Improved scrolling */
    * {
        -webkit-overflow-scrolling: touch;
    }

    /* Hide desktop-only elements */
    .desktop-only {
        display: none !important;
    }

    /* Show mobile-only elements */
    .mobile-only {
        display: block !important;
    }

    /* Prevent text selection on buttons/UI (better for touch) */
    button, .btn, .app-icon {
        -webkit-user-select: none;
        user-select: none;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    }

    /* Improved spacing for touch */
    .app-grid {
        gap: 15px !important;
        padding: 15px !important;
    }

    /* Better scrollbars on mobile */
    ::-webkit-scrollbar {
        width: 8px;
        height: 8px;
    }

    ::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.3);
        border-radius: 4px;
    }

    ::-webkit-scrollbar-track {
        background: rgba(0, 0, 0, 0.1);
    }
}

/* Tablet-specific styles (portrait) */
@media (min-width: 600px) and (max-width: 768px) and (orientation: portrait) {
    #blockPalette {
        height: 180px !important;
    }

    .app-grid {
        grid-template-columns: repeat(5, 90px) !important;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .site-title {
        font-size: 20px !important;
    }

    .modal-content {
        padding: 5px !important;
    }

    button, .btn {
        font-size: 14px !important;
        padding: 10px 12px !important;
    }

    #blockPalette {
        height: 120px !important;
    }

    .flashcard {
        font-size: 16px !important;
        min-height: 150px !important;
    }
}

/* Landscape mobile optimization */
@media (max-width: 768px) and (orientation: landscape) {
    #levelCreatorContainer {
        flex-direction: row !important;
    }

    #blockPalette {
        width: 200px !important;
        height: 100% !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
    }

    #workspace {
        flex: 1 !important;
    }

    #stage {
        height: 150px !important;
    }
}

/* Enhanced Mobile Modal Handling */
@media (max-width: 600px) {
    /* Prevent background scrolling on mobile */
    body {
        overflow: hidden !important;
        position: fixed !important;
        width: 100% !important;
        height: 100vh !important;
    }

    /* Prevent multiple modals from stacking */
    .modal-content, .settings-modal, .reward-modal {
        width: 95vw !important;
        max-width: 95vw !important;
        max-height: 90vh !important;
        overflow-y: auto !important;
        margin: 5vh auto !important;
    }

    /* Daily bonus modal specific */
    #dailyBonusModal .modal-content {
        padding: 20px 15px !important;
    }

    /* Better touch targets */
    button:not(.close-btn) {
        min-height: 44px !important;
        min-width: 44px !important;
    }

    /* App grid improvements */
    .app-grid {
        position: relative !important;
        margin: 100px auto 80px 20px !important;
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)) !important;
        gap: 12px !important;
        padding: 10px !important;
        width: calc(100vw - 40px) !important;
        max-width: none !important;
        overflow: visible !important;
    }

    .app-icon {
        padding: 10px !important;
    }

    .app-icon-emoji {
        font-size: 32px !important;
    }

    .app-icon-label {
        font-size: 11px !important;
    }

    /* Search bar responsive */
    #appSearchBar {
        font-size: 14px !important;
        padding: 10px 12px !important;
    }

    /* Dark mode toggle */
    #darkModeToggle {
        font-size: 14px !important;
        padding: 10px 16px !important;
    }

    /* Performance monitor */
    #perf-monitor {
        font-size: 9px !important;
        padding: 6px !important;
        top: 5px !important;
        left: 5px !important;
        min-width: 120px !important;
    }

    /* Notification improvements */
    #notificationContainer {
        top: 10px !important;
        width: 95% !important;
        max-width: 95% !important;
    }

    /* Settings modal improvements */
    .settings-modal h2, .settings-modal h3 {
        font-size: 18px !important;
    }

    .settings-modal label {
        font-size: 13px !important;
    }

    .settings-modal input, .settings-modal select, .settings-modal textarea {
        font-size: 14px !important;
    }
}

/* Tablet responsiveness improvements */
@media (min-width: 601px) and (max-width: 1024px) {
    .app-grid {
        grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)) !important;
        padding: 20px !important;
    }

    .modal-content {
        width: 80vw !important;
        max-width: 600px !important;
    }

    /* Better use of space on tablets */
    .settings-modal {
        max-width: 700px !important;
    }
}