/* --- 테마 24: Retro Wave --- */
@keyframes neon-glow {
    from { text-shadow: 0 0 5px #fff, 0 0 10px #ff00ff, 0 0 15px #ff00ff; }
    to { text-shadow: 0 0 10px #fff, 0 0 20px #ff00ff, 0 0 30px #ff00ff; }
}

.premium-content-wrapper {
    font-family: 'Orbitron', 'Pretendard', sans-serif;
    background-color: #1a0537;
    background-image: 
        linear-gradient(rgba(255, 0, 255, 0.2) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 0, 255, 0.2) 1px, transparent 1px);
    background-size: 30px 30px;
    color: #eee;
    line-height: 1.8;
    word-break: keep-all;
    padding: 40px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 0 30px rgba(255, 0, 255, 0.3);
    border: 1px solid #ff00ff;
}

.premium-title {
    font-size: 3.2em;
    font-weight: 700;
    color: #fff;
    text-align: center;
    margin-bottom: 40px;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: neon-glow 1.5s infinite alternate ease-in-out;
}

.premium-content-wrapper h2 {
    font-size: 2.2em;
    font-weight: 700;
    color: #00ffff;
    text-align: center;
    padding-bottom: 20px;
    margin: 40px 0 30px 0;
    border-bottom: 1px solid #00ffff;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.7);
}

.premium-content-wrapper h3 {
    font-size: 1.8em;
    font-weight: 600;
    color: #fff;
    margin: 35px 0 20px 0;
}

.premium-content-wrapper strong {
    color: #00ffff;
    font-weight: 700;
}

/* --- 버튼 섹션: Retro Wave --- */
.premium-purchase-section {
    text-align: center;
    margin: 50px auto;
    padding: 40px;
    background: #0d0221;
    background-image: 
        linear-gradient(to top, rgba(0, 255, 255, 0.15) 2px, transparent 2px),
        linear-gradient(to left, rgba(0, 255, 255, 0.15) 2px, transparent 2px);
    background-size: 40px 40px;
    border-radius: 8px;
    border: 1px solid #00ffff;
}

.purchase-content h3 {
    color: #fff !important;
    font-size: 2.2em !important;
    font-weight: 700 !important;
    margin-bottom: 15px !important;
    text-transform: uppercase;
    border: none !important;
    padding: 0 !important;
    text-shadow: 0 0 10px #ff00ff, 0 0 20px #ff00ff !important;
}

.purchase-content p {
    color: #ccc;
    text-align: center;
    margin-bottom: 30px;
}

.premium-purchase-button {
    display: inline-block !important;
    padding: 18px 50px !important;
    font-size: 1.4em !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    color: #fff !important;
    background: linear-gradient(145deg, #444, #222) !important;
    border: 2px solid #00ffff !important;
    border-radius: 5px !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5), inset 0 0 10px rgba(0, 255, 255, 0.2) !important;
    text-shadow: 0 0 5px #fff;
    cursor: pointer !important;
}

.premium-purchase-button:hover {
    background: #00ffff !important;
    color: #111 !important;
    box-shadow: 0 0 35px #00ffff !important;
    transform: scale(1.05) translateY(-2px) !important;
    text-shadow: none !important;
    text-decoration: none !important;
}