/* --- Algemene Styling --- */
body {
    font-family: Arial, sans-serif;
    background-color: #e0f2f7;
    margin: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    background-color: #f0faff;
    border-bottom: 2px solid #b3e0ff;
    flex-shrink: 0;
}

h1 {
    color: #004080;
    font-size: 2em;
    text-align: center;
    flex-grow: 1;
    margin: 0;
}

button {
    background-color: #004080;
    color: white;
    border: none;
    padding: 10px 15px;
    font-size: 1em;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

button:hover {
    background-color: #0056b3;
}

button:disabled {
    background-color: #a9a9a9;
    cursor: not-allowed;
}

/* --- Hoofd layout --- */
#main-content {
    display: flex;
    flex-grow: 1;
    gap: 15px;
    padding: 15px;
    overflow: hidden;
}

#left-panel {
    flex-basis: 300px; /* Smaller panel */
    flex-shrink: 0;
    overflow-y: auto;
    background-color: #f0faff;
    border: 1px solid #b3e0ff;
    border-radius: 8px;
    padding: 15px;
}

#center-panel {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 0;
}

#right-panel-buttons {
    flex-basis: 240px;
    flex-shrink: 0;
    background-color: #f0faff;
    border: 1px solid #b3e0ff;
    border-radius: 8px;
    padding: 15px;
}

/* --- Canvas Styling --- */
#drawingCanvasContainer {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

#drawingCanvas {
    background-color: white;
    border: 1px solid #ccc;
}

/* --- Controls Styling --- */
.control-group {
    margin-bottom: 20px;
    border-bottom: 1px solid #d4eaf7;
    padding-bottom: 15px;
}
.control-group:last-child {
    border-bottom: none;
}

.control-group h3 {
    margin-top: 0;
    color: #004080;
}

.control-group label {
    display: block;
    margin-bottom: 8px;
}

.tool-setting {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* --- Kleurenpalet --- */
#colorPalette {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    gap: 5px;
}

.color-box {
    width: 30px;
    height: 30px;
    border: 2px solid transparent;
    border-radius: 50%; /* Circles */
    cursor: pointer;
    transition: transform 0.1s;
}

.color-box.selected {
    border-color: #004080;
    transform: scale(1.1);
}

#eyeToolBtn.selected {
    border-color: #004080;
    background-color: #0056b3;
    transform: scale(1.05);
}


/* --- Werkblad Modal/Overlay Styling --- */
#werkblad-modal {
    display: none; /* Standaard verborgen */
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    padding: 20px;
    box-sizing: border-box;
}

#werkblad-content {
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    width: auto;
    max-width: 90vw;
    max-height: 95vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#werkblad-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

#werkblad-header h2 {
    margin: 0;
    color: #004080;
}

#sluit-werkblad-btn {
    font-size: 2em;
    font-weight: bold;
    line-height: 1;
    background: none;
    border: none;
    color: #555;
    padding: 0 10px;
}

#werkblad-canvas {
    max-width: 100%;
    height: auto;
    border: 1px solid #ccc;
}

#werkblad-knoppen {
    margin: 20px 0;
    display: flex;
    gap: 15px;
}

#right-panel-buttons .control-group button {
    width: 100%;
    margin-bottom: 10px;
}

#right-panel-buttons .control-group button:last-child {
    margin-bottom: 0;
}