/* ============================================================================
 * 余白の時間 - Headspace風の静かなUI
 * ============================================================================ */

.ymcnp-margin {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ymcnp-margin-start, .ymcnp-margin-session, .ymcnp-margin-complete {
    width: 100%;
    max-width: 600px;
}

.ymcnp-margin-start h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
    font-weight: 300;
}

.ymcnp-margin-start p {
    font-size: 1.2em;
    margin: 10px 0;
    opacity: 0.9;
}

.ymcnp-margin-block {
    display: none;
}

.ymcnp-margin-block.active {
    display: block;
    animation: fadeIn 0.5s;
}

.ymcnp-margin-block h3 {
    font-size: 1.8em;
    margin-bottom: 20px;
    font-weight: 300;
}

.ymcnp-margin textarea {
    min-height: 150px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    color: #333;
}

.ymcnp-margin-begin, .ymcnp-margin-next, .ymcnp-margin-save {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
    padding: 15px 40px;
    font-size: 18px;
    margin-top: 20px;
}

.ymcnp-margin-begin:hover, .ymcnp-margin-next:hover, .ymcnp-margin-save:hover {
    background: rgba(255, 255, 255, 0.3);
}

.ymcnp-margin-complete h2 {
    font-size: 3em;
    margin-bottom: 20px;
}

.ymcnp-margin-complete p {
    font-size: 1.5em;
    opacity: 0.9;
}