* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'BIZ UDPGothic', 'Noto Sans JP', sans-serif;
    background: linear-gradient(135deg, #fdf6f6 0%, #f5e6e8 50%, #e8dae5 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
}

.age-verification-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-header {
    background: linear-gradient(135deg, #f2cdd6 0%, #da94a2 100%);
    padding: 40px 30px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.card-header:before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.card-header .logo {
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.card-header .logo img {
    max-width: 180px;
    height: auto;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
}

.card-header h1 {
    font-size: clamp(1.375rem, 1.196rem + 0.89vw, 2rem);
    font-weight: 700;
    margin: 0;
    line-height: 1.4;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.card-body {
    padding: 40px 30px;
}

.card-body h2 {
    color: #a87580;
    font-size: 20px;
    margin-bottom: 25px;
    text-align: center;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.age-question {
    text-align: center;
    margin-bottom: 30px;
}

.age-question h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 700;
}

.warning-message {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 20px;
    margin: 30px 0;
    color: #856404;
    font-size: 14px;
    line-height: 1.8;
}

.warning-icon {
    display: inline-block;
    margin-right: 10px;
    color: #ff6b6b;
    font-size: 18px;
}

.info-section {
    background: linear-gradient(to right, #faf7f7, #f5f2f2);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    border-left: 4px solid #da94a2;
    box-shadow: 0 2px 8px rgba(180, 140, 140, 0.1);
}

.info-section h4 {
    color: #a87580;
    font-size: 16px;
    margin-bottom: 15px;
    font-weight: 700;
}

.info-section ul {
    list-style: none;
    padding: 0;
}

.info-section li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    font-size: 14px;
    color: #555;
}

.info-section li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #da94a2;
    font-weight: bold;
    font-size: 16px;
}

.button-group {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    padding: 14px 35px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 140px;
}

.btn-no {
    background: #f0f0f0;
    color: #666;
    border: 2px solid #ddd;
}

.btn-no:hover {
    background: #e0e0e0;
    border-color: #999;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-yes {
    background: linear-gradient(135deg, #f2cdd6 0%, #da94a2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(180, 140, 140, 0.3);
}

.btn-yes:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(180, 140, 140, 0.4);
}

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

.icon-lock {
    font-size: 18px;
}

.legal-notice {
    font-size: 12px;
    color: #999;
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    line-height: 1.6;
}

.legal-notice a {
    color: #da94a2;
    text-decoration: none;
    font-weight: 600;
}

.legal-notice a:hover {
    text-decoration: underline;
}

.feature-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ffd700, #ffa500);
    color: #333;
    padding: 10px 16px;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    box-shadow: 0 4px 10px rgba(255, 165, 0, 0.3);
    letter-spacing: 0.5px;
}

.faq-section {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
}

.faq-item {
    margin-bottom: 20px;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 15px;
}

.faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.faq-question {
    color: #a87580;
    font-weight: 700;
    font-size: 15px;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.faq-answer {
    color: #555;
    font-size: 14px;
    line-height: 1.7;
    padding-left: 25px;
}

.keyword-highlight {
    background: linear-gradient(transparent 60%, #f5e6e8 60%);
    font-weight: 600;
    color: #a87580;
}

@media (max-width: 768px) {
    .card-header {
        padding: 30px 20px;
    }

    .card-header h1 {
        font-size: 22px;
    }

    .card-body {
        padding: 25px 20px;
    }

    .age-question h3 {
        font-size: 20px;
    }

    .button-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}