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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
    color: #1c1e21;
    min-height: 100vh;
}

.container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 20px;
}

/* Controls */
.controls {
    display: flex;
    gap: 20px;
    align-items: center;
    padding: 15px 20px;
    background: #f0f2f5;
    border: 1px solid #e4e6eb;
    border-radius: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    width: fit-content;
    max-width: 100%;
}


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

.control-group label {
    font-size: 14px;
    color: #65676b;
}

.control-group input[type="number"] {
    width: 100px;
    padding: 8px 12px;
    border: 1px solid #ced0d4;
    border-radius: 4px;
    background: #ffffff;
    color: #1c1e21;
    font-size: 14px;
}

.control-group input[type="range"] {
    width: 150px;
    accent-color: #0082FB;
}

#width-value,
#iterations-value,
#speed-value {
    min-width: 40px;
    text-align: center;
    color: #1c1e21;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}

#reset-btn,
#new-board-btn,
#step-btn {
    background: #e4e6eb;
    color: #1c1e21;
}

#reset-btn:hover,
#new-board-btn:hover,
#step-btn:hover {
    background: #d8dadf;
}

#run-btn {
    background: #0082FB;
    color: #fff;
}

#run-btn:hover {
    background: #1a8efc;
}

/* Main visualization */
.visualization {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    width: fit-content;
    max-width: 100%;
}

.panel {
    background: #f0f2f5;
    border: 1px solid #e4e6eb;
    border-radius: 8px;
    padding: 20px;
    flex: 0 0 auto;
}

h2 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #1c1e21;
}

.board-container {
    background: #ffffff;
    border: 1px solid #e4e6eb;
    padding: 10px;
    border-radius: 4px;
    display: inline-block;
}

#board-canvas,
#shapley-canvas,
#marginal-canvas,
#critical-canvas,
#uniform-canvas {
    display: block;
}

.algo-title {
    cursor: help;
    border-bottom: 1px dashed #8a8d91;
    display: inline-block;
}

.algo-desc {
    font-size: 12px;
    color: #65676b;
    font-style: italic;
    margin-bottom: 8px;
    min-height: 32px;
    line-height: 16px;
}

.sum-display {
    font-size: 14px;
    color: #65676b;
    margin-bottom: 10px;
    height: 20px;
    line-height: 20px;
}

.sum-display span {
    color: #1c1e21;
    font-weight: bold;
}