:root { --bg-color: #0a0a0f; --text-color: #e0e0e0; --accent-gold: #d4af37; --accent-glow: rgba(212, 175, 55, 0.3); }
body { margin: 0; background-color: var(--bg-color); color: var(--text-color); font-family: 'Shippori Mincho', serif; min-height: 100vh; display: flex; justify-content: center; align-items: flex-start; overflow-x: hidden; }
.background-effects { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at center, #1a1a2e 0%, #000000 100%); z-index: -1; }
.container { text-align: center; width: 90%; max-width: 900px; padding: 2rem 1rem; margin-bottom: 4rem; }
h1 { font-family: 'Cinzel', serif; font-size: 3rem; color: var(--accent-gold); margin-bottom: 0.5rem; text-shadow: 0 0 10px var(--accent-glow); }
.subtitle { font-size: 0.9rem; opacity: 0.7; letter-spacing: 0.1em; }

/* カード3D処理 */
.spread-stage { display: flex; justify-content: center; gap: 20px; margin: 3rem 0; perspective: 1000px; flex-wrap: wrap; }
.card-slot { width: 200px; height: 350px; position: relative; display: flex; flex-direction: column; align-items: center; }
.card-label { font-family: 'Cinzel', serif; color: var(--accent-gold); margin-bottom: 10px; font-size: 0.8rem; letter-spacing: 0.2em; }
.card-container { width: 100%; height: 100%; position: relative; transform-style: preserve-3d; transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.card-container.flipped { transform: rotateY(180deg); }
.card-container.flipped.reversed .card-face.card-front img { transform: rotate(180deg); }
.card-inner { width: 100%; height: 100%; position: relative; transform-style: preserve-3d; }
.card-face { position: absolute; width: 100%; height: 100%; -webkit-backface-visibility: hidden; backface-visibility: hidden; border-radius: 10px; box-shadow: 0 0 15px rgba(0,0,0,0.5); border: 1px solid #333; overflow: hidden; }

/* 裏写り防止の徹底 */
.card-back { background: #111; background-image: repeating-linear-gradient(45deg, #1a1a1a, #1a1a1a 10px, #222 10px, #222 20px); border: 2px solid var(--accent-gold); display: flex; align-items: center; justify-content: center; z-index: 2; transform: rotateY(0deg); }
.card-back::after { content: '★'; font-size: 2rem; color: var(--accent-gold); }
.card-front { background: #000; transform: rotateY(180deg); z-index: 1; display: flex; align-items: center; justify-content: center; }
.card-front img { width: 100%; height: 100%; object-fit: cover; display: block; background-color: #000; }

.mystic-btn { background: transparent; border: 1px solid var(--accent-gold); color: var(--accent-gold); padding: 1rem 3rem; font-family: 'Cinzel', serif; font-size: 1.2rem; cursor: pointer; transition: all 0.3s ease; letter-spacing: 0.1em; }
.mystic-btn:hover { background: var(--accent-gold); color: #000; box-shadow: 0 0 20px var(--accent-glow); }
.mystic-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.result-area { margin-top: 3rem; opacity: 0; transform: translateY(20px); transition: all 1s ease; }
.result-area.visible { opacity: 1; transform: translateY(0); }

/* 総合鑑定 */
.synthesis-box { background: rgba(20, 20, 30, 0.8); border: 1px solid var(--accent-gold); border-radius: 8px; padding: 2rem; margin-bottom: 3rem; box-shadow: 0 0 20px rgba(212, 175, 55, 0.1); text-align: center; }
.synthesis-header { display: flex; justify-content: center; align-items: center; gap: 15px; margin-bottom: 1rem; }
.synthesis-title { color: var(--accent-gold); font-size: 1.8rem; margin: 0; font-family: 'Shippori Mincho', serif; text-shadow: 0 0 5px var(--accent-glow); }
.synthesis-text { font-size: 1.1rem; line-height: 2.2; text-align: justify; color: #e0e0e0; white-space: pre-wrap; font-family: 'Shippori Mincho', serif; }
.mystic-icon { color: var(--accent-gold); font-size: 1.5rem; }
.divider { width: 50px; height: 1px; background: var(--accent-gold); margin: 1.5rem auto; }

.reading-item { margin-bottom: 2rem; text-align: left; border-bottom: 1px solid #333; padding-bottom: 2rem; }
.reading-item h3 { color: var(--accent-gold); font-size: 1.2rem; }
.reading-meta { font-size: 0.9rem; color: #888; margin-bottom: 1rem; }
.card-description { font-size: 1rem; line-height: 2; text-align: justify; color: #ccc; font-family: 'Shippori Mincho', serif; }

/* 信頼性 */
.philosophy-section { margin-top: 4rem; width: 100%; max-width: 800px; margin-left: auto; margin-right: auto; border-top: 1px solid #222; }
.philosophy-details[open] { padding-bottom: 2rem; }
.philosophy-summary { cursor: pointer; padding: 1.5rem 0; color: #666; display: flex; align-items: center; justify-content: center; gap: 10px; }
.philosophy-summary:hover { color: var(--accent-gold); }
.philosophy-summary::-webkit-details-marker { display: none; }
.philosophy-content { animation: fadeIn 0.8s ease; color: #aaa; padding-bottom: 2rem; }
.philosophy-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; text-align: left; padding: 1rem; }
.philosophy-item h3 { font-family: 'Shippori Mincho', serif; color: var(--text-color); font-size: 1.1rem; margin-bottom: 0.8rem; border-left: 3px solid var(--accent-gold); padding-left: 10px; }
.philosophy-item p { font-size: 0.9rem; line-height: 1.8; color: #888; margin: 0; }
@media (max-width: 700px) { .spread-stage { gap: 10px; } .card-slot { width: 100px; height: 175px; } .card-label { font-size: 0.6rem; } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }