/* General body styles */
body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background-color: #4CAF50;
    color: white;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
    color: white;
}

#close-button {
    background-color: #f44336;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s;
}

#close-button:hover {
    background-color: #d32f2f;
}

/* Canvas container */
.canvas-container {
    display: flex;
    justify-content: center;
    overflow: hidden;
    margin-top: 20px;
    width: 100%;
    height: auto;
}

canvas {
    background-color: white;
    border: 2px solid #333;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
    width: 1200px;  /* ขนาดของ canvas ที่คงที่ */
    height: 300px;
    object-fit: cover; /* ให้ canvas ตัดขอบซ้ายขวา */
    object-position: center; /* ทำให้ canvas ตัดจากกลาง */
}

/* Control buttons */
.controls {
    display: flex;
    justify-content: center; /* จัดเรียงปุ่มให้อยู่กลาง */
    align-items: center;     /* จัดแนวตั้งให้อยู่ตรงกลาง */
    margin-top: 20px;
}

button {
    font-size: 1rem;
    padding: 10px 15px;
    margin: 5px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: 0.3s;
    min-width: 90px;
}

#left-button {
    background-color: #ff5e5e;
    color: white;
}

#right-button {
    background-color: #5eafff;
    color: white;
}

#stop-button {
    background-color: #f7c600;
    color: black;
}

#reveal-button {
    background-color: #4CAF50;
    color: white;
}

button:hover {
    opacity: 0.8;
}

/* Reading container */
#reading-container {
    margin-top: 20px;
}

#reading {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    background: #fff;
    display: inline-block;
    padding: 10px 20px;
    border-radius: 10px;
    box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    text-align: center;
    padding: 10px;
    background-color: #333;
    color: white;
    margin-top: 40px;
}

/* Responsive design for mobile */
@media (max-width: 600px) {
    header {
        padding: 10px;
    }

    h1 {
        font-size: 1.5rem;
    }

    button {
        font-size: 0.9rem;
        padding: 8px 12px;
    }

    #reading {
        font-size: 1.2rem;
        padding: 8px 15px;
    }

    .canvas-container {
        margin-top: 10px;
    }

    /* Adjust control buttons */
    .controls {
        flex-direction: row; /* ทำให้ปุ่มแสดงในแถวเดียว */
        justify-content: center;
    }

    button {
        width: auto;
        max-width: 200px;
    }
}