/* --- 테마 4: Crimson Noir --- */
@keyframes red-glow {
  from {
    text-shadow: 0 0 4px #fff, 0 0 6px #ff2d55, 0 0 10px #ff2d55;
  }
  to {
    text-shadow: 0 0 6px #fff, 0 0 8px #ff2d55, 0 0 14px #ff2d55;
  }
}

.premium-content-wrapper {
    font-family: 'Montserrat', 'Pretendard', sans-serif;
    background: #121212;
    color: #f0f0f0;
    line-height: 1.8;
    word-break: keep-all;
    padding: 40px;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: 0 15px 50px rgba(0,0,0,0.6);
    border: 1px solid #333;
}

.premium-title {
    font-size: 2.8em;
    font-weight: 900;
    color: #ffffff;
    text-align: center;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 0 5px rgba(255, 45, 85, 0.5), 0 0 20px rgba(255, 45, 85, 0.3);
}

.premium-content-wrapper h2 {
    font-size: 2.2em;
    font-weight: 700;
    color: #ff3b5f;
    text-align: center;
    padding-bottom: 15px;
    margin: 40px 0 30px 0;
    border-bottom: 2px solid #444;
}

.premium-content-wrapper h3 {
    font-size: 1.8em;
    font-weight: 600;
    color: #f0f0f0;
    margin: 35px 0 20px 0;
    padding-left: 15px;
    border-left: 4px solid #ff3b5f;
}

.premium-content-wrapper strong {
    color: #ff3b5f;
    font-weight: 700;
}

.info-highlight {
    background: #2a2a2a;
    border-left: 4px solid #e60023;
    border-radius: 8px;
    padding: 25px;
    margin: 30px 0;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}