:root {
    --main-bg: #FFF8E1;
    --accent-orange: #FFAB91;
    --accent-red: #FF7043;
    --accent-blue: #81D4FA;
    --accent-yellow: #FFF59D;
    --text-color: #5D4037;
    --card-bg: #FFFFFF;
}

body {
    font-family: 'M PLUS Rounded 1c', sans-serif;
    background-color: var(--main-bg);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

/* --- カードデザイン --- */
.warning-card {
    background: var(--card-bg);
    border-radius: 30px;
    padding: 40px 30px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border: 4px solid var(--accent-orange);
    text-align: center;
    max-width: 600px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

/* --- 警告アイコン --- */
.icon-area {
    margin-bottom: 20px;
}

.warning-icon {
    width: 100px;
    height: 100px;
    fill: var(--accent-red);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-10px);}
    60% {transform: translateY(-5px);}
}

h1 {
    font-size: 1.8rem;
    color: var(--accent-red);
    margin-bottom: 20px;
    border-bottom: 2px dashed var(--accent-orange);
    padding-bottom: 10px;
    display: inline-block;
}

p {
    font-size: 1rem;
    margin-bottom: 15px;
}

.emphasis {
    font-weight: bold;
    color: var(--accent-red);
    font-size: 1.1rem;
}

.btn-area {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

@media (min-width: 480px) {
    .btn-area {
        flex-direction: row;
        justify-content: center;
        gap: 20px;
    }
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 200px;
    padding: 15px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.2s, opacity 0.2s;
    text-decoration: none;
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.btn:hover {
    transform: translateY(-3px);
    opacity: 0.9;
}

.btn:active {
    transform: translateY(0);
}

.btn-yes {
    background-color: var(--accent-orange);
    color: white;
}

.btn-no {
    background-color: #B0BEC5;
    color: white;
}

.bg-deco {
    position: absolute;
    z-index: -1;
    opacity: 0.5;
}
.deco-1 { top: -20px; left: -20px; width: 100px; height: 100px; background: var(--accent-yellow); border-radius: 50%; }
.deco-2 { bottom: -30px; right: -10px; width: 120px; height: 120px; background: var(--accent-blue); border-radius: 50%; }