@font-face {
    font-family: 'BaselGrotesk';
    src: url('fonts/BaselGrotesk-Medium.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

* {
    margin: 4px;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --text-color: #1d1d1f;
    --muted-text: #6e6e73;
    --border-color: #d2d2d7;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.08);
}

body {
    font-family: "Helvetica Neue", Helvetica, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    background: var(--bg-color);
    background-attachment: fixed;
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 24px 0;
    background: transparent;
    color: var(--text-color);
}

header::before {}
header::after {}

@keyframes sparkle {}
@keyframes float {}

header h1 {
    margin: 4px;
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.main-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.canvas-section {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: box-shadow 0.2s ease;
    width: 100%;
    max-width: 1200px;
}

.canvas-section:hover {
    box-shadow: var(--shadow-lg);
}

h2 {
    margin: 4px 4px 20px 4px;
    font-size: 1.25rem;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

h2::before {}

.mode-selector {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.btn-mode {
    padding: 12px 24px;
    font-size: 1rem;
}

.btn-mode.active {
    background: #f2f2f2;
}

.controls-wrapper {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.canvas-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    justify-content: center;
}

.action-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    padding: 16px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 4px;
}

label {
    font-weight: 500;
    color: var(--muted-text);
    font-size: 0.9rem;
}

input[type="color"] {
    width: 40px;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
}

input[type="color"]:hover {
    background: #f2f2f2;
}

input[type="range"] {
    width: 120px;
    cursor: pointer;
    -webkit-appearance: none;
    height: 6px;
    border-radius: 6px;
    background: #e5e5ea;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #ffffff;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #ffffff;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.btn {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
    background: #ffffff;
    color: var(--text-color);
}

.btn::before {}
.btn:hover::before {}

.btn:hover {
    background: #f2f2f2;
}

.btn:active {
    background: #e5e5ea;
}

.btn-primary {
    background: #1d1d1f;
    color: #ffffff;
    border-color: #1d1d1f;
}

.btn-secondary {
    background: #ffffff;
    color: var(--text-color);
}

.btn-danger {
    background: #ffffff;
    color: var(--text-color);
}

.btn.active {
    background: #f2f2f2;
}

@keyframes pulse {}

.canvas-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.canvas-wrapper::before {}

#drawingCanvas {
    display: block;
    cursor: crosshair;
    background: #ffffff;
    border-radius: 8px;
}

.instruction-text {
    text-align: center;
    margin-top: 16px;
    padding: 12px;
    background: #f9f9fb;
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--muted-text);
    font-weight: 400;
    border: 1px solid var(--border-color);
}

.cute-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: #6e6e73;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .canvas-section {
        padding: 16px;
    }
    
    .canvas-controls,
    .action-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    input[type="range"] {
        width: 100%;
    }
    
    #drawingCanvas {
        max-width: 100%;
        height: auto !important;
    }
}