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

body {
    font-family: Consolas, Monaco, monospace;
    background-color: #0a0a12;
    color: #00f3ff;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    background-image:
        linear-gradient(rgba(0, 243, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 243, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

.toolbar {
    flex-shrink: 0;
    width: auto;
    min-width: 180px;
    max-width: 260px;
    background: rgba(10, 10, 18, 0.92);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 243, 255, 0.25);
    overflow-y: auto;
    overflow-x: hidden;
    padding: 6px;
    position: relative;
    z-index: 10;
}

.toolbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #00f3ff, #ff00ff, #00ff88);
}

.left-toolbar {
    border-right: 1px solid rgba(255, 0, 255, 0.35);
    box-shadow: 2px 0 12px rgba(0, 243, 255, 0.1);
}

.right-toolbar {
    border-left: 1px solid rgba(255, 0, 255, 0.35);
    box-shadow: -2px 0 12px rgba(0, 243, 255, 0.1);
}

.tool-section {
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(0, 243, 255, 0.12);
}

.tool-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.section-title {
    font-size: 11px;
    margin-bottom: 6px;
    color: #ff00ff;
    text-shadow: 0 0 8px rgba(255, 0, 255, 0.6);
    display: flex;
    align-items: center;
    gap: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title i {
    font-size: 10px;
}

.tool-buttons,
.advanced-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4px;
}

.tool-btn,
.adv-btn {
    background: rgba(0, 40, 80, 0.6);
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: #00f3ff;
    padding: 6px 4px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 10px;
    font-family: Consolas, Monaco, monospace;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    text-align: center;
}

.tool-btn:hover,
.adv-btn:hover {
    background: rgba(0, 100, 200, 0.7);
    border-color: #00f3ff;
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.5), inset 0 0 8px rgba(0, 243, 255, 0.1);
    transform: translateY(-1px);
}

.tool-btn.active,
.adv-btn.active {
    background: rgba(255, 0, 255, 0.25);
    border-color: #ff00ff;
    box-shadow: 0 0 12px rgba(255, 0, 255, 0.5), inset 0 0 8px rgba(255, 0, 255, 0.15);
    color: #ff00ff;
}

.tool-btn i,
.adv-btn i {
    font-size: 14px;
}

.tool-btn span,
.adv-btn span {
    font-size: 9px;
    white-space: nowrap;
}

.control-group {
    margin-bottom: 6px;
}

.control-group label {
    display: block;
    margin-bottom: 3px;
    font-size: 10px;
    color: rgba(0, 243, 255, 0.7);
}

input[type="range"] {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: linear-gradient(90deg, #00f3ff, #ff00ff);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: #00f3ff;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 8px rgba(0, 243, 255, 0.8);
    border: 2px solid #0a0a12;
}

input[type="range"]::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: #00f3ff;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 8px rgba(0, 243, 255, 0.8);
    border: 2px solid #0a0a12;
}

select {
    width: 100%;
    padding: 4px 6px;
    background: rgba(0, 20, 50, 0.9);
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: #00f3ff;
    border-radius: 3px;
    font-size: 10px;
    font-family: Consolas, Monaco, monospace;
    outline: none;
    cursor: pointer;
}

select:focus {
    border-color: #00f3ff;
    box-shadow: 0 0 6px rgba(0, 243, 255, 0.3);
}

.color-palette {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    margin-bottom: 6px;
}

.color-swatch {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.color-swatch:hover {
    transform: scale(1.15);
    box-shadow: 0 0 10px currentColor;
}

.color-swatch.active {
    border-color: #fff;
    box-shadow: 0 0 12px currentColor, 0 0 20px currentColor;
    transform: scale(1.1);
}

.neon-blue { background-color: #00ffff; color: #00ffff; }
.neon-pink { background-color: #ff00ff; color: #ff00ff; }
.neon-green { background-color: #00ff00; color: #00ff00; }
.neon-yellow { background-color: #ffff00; color: #ffff00; }
.neon-purple { background-color: #9000ff; color: #9000ff; }
.white { background-color: #ffffff; color: #ffffff; }
.black { background-color: #000000; color: #000000; border: 1px solid rgba(0, 243, 255, 0.3); }

.custom-color {
    display: flex;
    align-items: center;
    gap: 6px;
}

#customColorPicker {
    width: 32px;
    height: 32px;
    border: 1px solid rgba(0, 243, 255, 0.4);
    border-radius: 4px;
    cursor: pointer;
    background: transparent;
    padding: 0;
}

.custom-color label {
    font-size: 10px;
    color: rgba(0, 243, 255, 0.6);
    cursor: pointer;
}

.canvas-area {
    flex: 1;
    min-width: 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
    padding: 6px;
    overflow: hidden;
}

.canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(0, 243, 255, 0.15);
    flex-shrink: 0;
}

.canvas-controls {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.control-btn {
    background: rgba(0, 40, 80, 0.6);
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: #00f3ff;
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 10px;
    font-family: Consolas, Monaco, monospace;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.control-btn:hover {
    background: rgba(0, 100, 200, 0.7);
    border-color: #00f3ff;
    box-shadow: 0 0 8px rgba(0, 243, 255, 0.4);
}

.control-btn.danger {
    background: rgba(200, 0, 50, 0.5);
    border-color: rgba(255, 0, 85, 0.5);
    color: #ff0055;
}

.control-btn.danger:hover {
    background: rgba(255, 0, 80, 0.7);
    box-shadow: 0 0 10px rgba(255, 0, 80, 0.5);
}

.control-btn.success {
    background: rgba(0, 150, 80, 0.5);
    border-color: rgba(0, 255, 136, 0.5);
    color: #00ff88;
}

.control-btn.success:hover {
    background: rgba(0, 200, 100, 0.7);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.canvas-info {
    display: flex;
    gap: 8px;
    font-size: 10px;
    flex-shrink: 0;
}

.coordinates,
.tool-indicator {
    background: rgba(0, 20, 50, 0.7);
    padding: 3px 8px;
    border-radius: 3px;
    border: 1px solid rgba(0, 243, 255, 0.2);
    white-space: nowrap;
}

.canvas-wrapper {
    flex: 1;
    min-height: 0;
    display: flex;
    overflow: hidden;
    border-radius: 4px;
    border: 1px solid rgba(0, 243, 255, 0.3);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.15), inset 0 0 20px rgba(0, 243, 255, 0.03);
    position: relative;
}

#drawingCanvas {
    width: 100%;
    height: 100%;
    background-color: #0a0a1a;
    cursor: crosshair;
    touch-action: none;
    display: block;
}

.canvas-footer {
    margin-top: 4px;
    padding-top: 4px;
    border-top: 1px solid rgba(0, 243, 255, 0.12);
    font-size: 10px;
    color: rgba(0, 243, 255, 0.5);
    text-align: center;
    flex-shrink: 0;
}

.hint i {
    color: #ff00ff;
    margin-right: 4px;
}

.toggle-btn {
    width: 100%;
    background: rgba(0, 40, 80, 0.6);
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: #00f3ff;
    padding: 5px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 10px;
    font-family: Consolas, Monaco, monospace;
    transition: all 0.2s ease;
    text-align: center;
}

.toggle-btn:hover {
    background: rgba(0, 100, 200, 0.7);
    box-shadow: 0 0 8px rgba(0, 243, 255, 0.4);
}

.layer-controls {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.layer-list {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.layer-item {
    display: flex;
    align-items: center;
    padding: 4px 6px;
    background: rgba(0, 20, 50, 0.5);
    border-radius: 3px;
    border: 1px solid rgba(0, 243, 255, 0.15);
    font-size: 10px;
}

.layer-item.active {
    background: rgba(0, 60, 120, 0.5);
    border-color: rgba(0, 243, 255, 0.4);
}

.layer-item i {
    margin-right: 6px;
    color: #ff00ff;
    font-size: 10px;
}

.layer-item span {
    flex: 1;
}

.layer-actions {
    display: flex;
    gap: 3px;
}

.layer-btn {
    background: transparent;
    border: none;
    color: #00f3ff;
    cursor: pointer;
    font-size: 11px;
    padding: 2px;
    transition: color 0.2s;
}

.layer-btn:hover {
    color: #ff00ff;
    text-shadow: 0 0 6px rgba(255, 0, 255, 0.5);
}

.layer-buttons {
    display: flex;
    gap: 4px;
}

.layer-action-btn {
    flex: 1;
    background: rgba(0, 40, 80, 0.6);
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: #00f3ff;
    padding: 4px 6px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 9px;
    font-family: Consolas, Monaco, monospace;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 3px;
    white-space: nowrap;
}

.layer-action-btn:hover {
    background: rgba(0, 100, 200, 0.7);
    box-shadow: 0 0 8px rgba(0, 243, 255, 0.4);
}

.history-list {
    max-height: 100px;
    overflow-y: auto;
    margin-bottom: 4px;
}

.history-item {
    padding: 3px 6px;
    background: rgba(0, 20, 50, 0.5);
    border-radius: 2px;
    margin-bottom: 2px;
    font-size: 9px;
    border-left: 2px solid #00f3ff;
}

.history-info {
    font-size: 10px;
    color: rgba(0, 243, 255, 0.6);
    text-align: center;
    padding: 4px;
    background: rgba(0, 20, 50, 0.5);
    border-radius: 3px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 10, 20, 0.92);
    backdrop-filter: blur(6px);
    z-index: 100;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: rgba(10, 10, 18, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 243, 255, 0.4);
    border-radius: 8px;
    padding: 20px;
    width: 360px;
    max-width: 90vw;
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.3), 0 0 60px rgba(255, 0, 255, 0.1);
    position: relative;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #00f3ff, #ff00ff, #00ff88);
    border-radius: 8px 8px 0 0;
}

.modal-content h3 {
    margin-bottom: 14px;
    color: #ff00ff;
    text-align: center;
    font-size: 14px;
    text-shadow: 0 0 8px rgba(255, 0, 255, 0.5);
}

#textInput {
    width: 100%;
    padding: 8px 10px;
    background: rgba(0, 20, 50, 0.9);
    border: 1px solid rgba(0, 243, 255, 0.3);
    color: #00f3ff;
    border-radius: 4px;
    font-size: 13px;
    font-family: Consolas, Monaco, monospace;
    margin-bottom: 14px;
    outline: none;
}

#textInput:focus {
    border-color: #00f3ff;
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
}

.modal-buttons {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.modal-btn {
    padding: 6px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-family: Consolas, Monaco, monospace;
    font-weight: bold;
    transition: all 0.2s ease;
}

.modal-btn.confirm {
    background: rgba(0, 150, 80, 0.8);
    color: #00ff88;
    border: 1px solid #00ff88;
}

.modal-btn.confirm:hover {
    background: rgba(0, 200, 100, 0.9);
    box-shadow: 0 0 12px rgba(0, 255, 136, 0.5);
}

.modal-btn.cancel {
    background: rgba(200, 0, 50, 0.8);
    color: #ff0055;
    border: 1px solid #ff0055;
}

.modal-btn.cancel:hover {
    background: rgba(255, 0, 80, 0.9);
    box-shadow: 0 0 12px rgba(255, 0, 80, 0.5);
}

.hamburger-btn {
    display: none;
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: 1000;
    width: 36px;
    height: 36px;
    background: rgba(10, 10, 18, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 243, 255, 0.4);
    border-radius: 4px;
    color: #00f3ff;
    font-size: 16px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
}

.hamburger-btn:hover {
    background: rgba(0, 100, 200, 0.7);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.5);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    z-index: 49;
}

.sidebar-overlay.active {
    display: block;
}

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 10, 20, 0.5);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #00f3ff, #ff00ff);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #00aaff, #ff00aa);
}

@keyframes pulse {
    0% { box-shadow: 0 0 4px rgba(0, 243, 255, 0.4); }
    50% { box-shadow: 0 0 16px rgba(0, 243, 255, 0.8); }
    100% { box-shadow: 0 0 4px rgba(0, 243, 255, 0.4); }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes glow-border {
    0%, 100% { border-color: rgba(0, 243, 255, 0.3); }
    50% { border-color: rgba(0, 243, 255, 0.7); }
}

@media (max-width: 768px) {
    .hamburger-btn {
        display: flex;
    }

    .app-container {
        position: relative;
    }

    .left-toolbar,
    .right-toolbar {
        position: fixed;
        top: 0;
        height: 100vh;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        max-width: 280px;
        width: 75vw;
    }

    .left-toolbar {
        left: 0;
        border-right: 1px solid rgba(255, 0, 255, 0.4);
    }

    .right-toolbar {
        right: 0;
        left: auto;
        transform: translateX(100%);
        border-left: 1px solid rgba(255, 0, 255, 0.4);
    }

    .left-toolbar.drawer-open {
        transform: translateX(0);
    }

    .right-toolbar.drawer-open {
        transform: translateX(0);
    }

    .canvas-area {
        width: 100%;
        padding: 4px;
        padding-top: 48px;
    }

    .canvas-header {
        flex-direction: column;
        gap: 4px;
        align-items: flex-start;
    }

    .canvas-controls {
        flex-wrap: wrap;
    }

    .control-btn {
        padding: 3px 6px;
        font-size: 9px;
    }

    .canvas-info {
        width: 100%;
        justify-content: space-between;
        font-size: 9px;
    }

    .coordinates,
    .tool-indicator {
        padding: 2px 6px;
        font-size: 9px;
    }

    .canvas-footer {
        font-size: 9px;
    }

    .tool-btn,
    .adv-btn {
        padding: 5px 3px;
    }

    .tool-btn i,
    .adv-btn i {
        font-size: 13px;
    }

    .tool-btn span,
    .adv-btn span {
        font-size: 8px;
    }

    .section-title {
        font-size: 10px;
    }

    .control-group label {
        font-size: 9px;
    }

    .color-swatch {
        border-width: 1px;
    }

    .modal-content {
        width: 90vw;
        padding: 14px;
    }

    .modal-content h3 {
        font-size: 13px;
    }

    #textInput {
        font-size: 12px;
        padding: 6px 8px;
    }

    .modal-btn {
        padding: 5px 14px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .canvas-area {
        padding: 2px;
        padding-top: 44px;
    }

    .left-toolbar,
    .right-toolbar {
        width: 85vw;
        max-width: 300px;
    }

    .tool-buttons,
    .advanced-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: 3px;
    }

    .tool-btn,
    .adv-btn {
        padding: 4px 2px;
    }

    .tool-btn i,
    .adv-btn i {
        font-size: 12px;
    }

    .tool-btn span,
    .adv-btn span {
        font-size: 7px;
    }

    .control-btn {
        padding: 2px 5px;
        font-size: 8px;
        gap: 2px;
    }

    .canvas-info {
        font-size: 8px;
    }

    .canvas-footer {
        font-size: 8px;
    }

    .hamburger-btn {
        width: 32px;
        height: 32px;
        font-size: 14px;
        top: 6px;
        left: 6px;
    }
}