body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7f6;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 80%;
    max-width: 900px; 
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-box {
    background: white;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

.btn-group {
    margin-top: 20px;
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    margin: 0 10px;
    transition: 0.3s;
}

.btn-primary { background-color: #4CAF50; color: white; }
.btn-primary:hover { background-color: #45a049; }
.btn-secondary { background-color: #ccc; color: black; }
.btn-secondary:hover { background-color: #bbb; }


.yoga-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    width: 100%;
    margin-top: 15px;
}

.canvas-wrapper {
    border: 3px solid #4CAF50;
    border-radius: 10px;
    overflow: hidden;
}

.image-wrapper img {
    max-width: 250px; 
    max-height: 400px; 
    border-radius: 10px;
    border: 3px dashed #4CAF50;
    object-fit: contain; 
}

iframe {
    border-radius: 10px;
    border: 1px solid #ddd;
    margin-top: 20px;
}

/* time styles */
#current-time {
    font-size: 4.5rem;
    margin: 10px 0;
    color: #4CAF50;
    font-weight: bold;
    letter-spacing: 2px;
}

#time-left {
    font-size: 3rem;
    margin: 10px 0;
    color: #FF9800; 
}