* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: linear-gradient(135deg, #1a1a2e, #16213e); min-height: 100vh; color: #fff; }
header { padding: 1rem 2rem; background: rgba(0,0,0,0.3); }
nav { max-width: 800px; margin: 0 auto; display: flex; justify-content: space-between; }
.logo { font-size: 1.5rem; font-weight: bold; color: #fff; text-decoration: none; }
.back-btn { color: #aaa; text-decoration: none; padding: 8px 16px; border-radius: 8px; background: rgba(255,255,255,0.05); transition: all 0.3s; }
.back-btn:hover { background: rgba(233, 69, 96, 0.2); color: #fff; }
main { max-width: 800px; margin: 2rem auto; padding: 0 1rem; }
h1 { text-align: center; font-size: 2rem; }
.subtitle { text-align: center; color: #aaa; margin: 0.5rem 0 2rem; }
.game-container { background: rgba(255,255,255,0.05); border-radius: 16px; padding: 2rem; }
.score-board { display: flex; justify-content: space-around; margin-bottom: 2rem; font-size: 1.2rem; }
.score-board strong { color: #4ade80; font-size: 1.5rem; }
.chain-display { background: rgba(0,0,0,0.3); border-radius: 12px; padding: 1rem; min-height: 60px; margin-bottom: 1.5rem; word-wrap: break-word; }
.current-word { text-align: center; margin-bottom: 1rem; }
.target-letter { font-size: 2rem; font-weight: bold; color: #fbbf24; }
.input-area { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
#word-input { flex: 1; padding: 1rem; border: none; border-radius: 8px; font-size: 1.1rem; background: rgba(255,255,255,0.1); color: #fff; }
#word-input::placeholder { color: #666; }
#submit-btn { padding: 1rem 2rem; border: none; border-radius: 8px; background: #4ade80; color: #000; font-weight: bold; cursor: pointer; }
#hint-btn { background: none; border: 1px solid #444; color: #aaa; padding: 0.5rem 1rem; border-radius: 6px; cursor: pointer; }
#hint-text { margin-top: 0.5rem; color: #4ade80; font-style: italic; }
.game-status { text-align: center; margin-top: 1rem; font-size: 1.1rem; min-height: 1.5rem; }
.related-guides { background: rgba(255,255,255,0.05); border-radius: 16px; padding: 1.5rem; margin-top: 2rem; }
.related-guides h2 { margin-bottom: 1rem; color: #e94560; }
.related-guides ul { list-style: none; }
.related-guides li { margin-bottom: 0.75rem; }
.related-guides a { color: #60a5fa; text-decoration: none; display: block; padding: 0.5rem; border-radius: 8px; transition: all 0.3s; }
.related-guides a:hover { background: rgba(96, 165, 250, 0.1); }
footer { text-align: center; padding: 2rem; color: #666; margin-top: 2rem; }

.seo-content {
    max-width: 800px;
    margin: 40px auto;
    padding: 30px;
    text-align: left;
    color: #a0a0a0;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 15px;
}
.seo-content h2 {
    color: #e94560;
    margin-bottom: 20px;
}
.seo-content h3 {
    color: #e94560;
    margin: 20px 0 10px;
}
.seo-content p {
    line-height: 1.8;
    margin-bottom: 15px;
}
.seo-content ul {
    margin-left: 20px;
    line-height: 1.8;
}
.seo-content a {
    color: #60a5fa;
    text-decoration: none;
}
.seo-content a:hover {
    text-decoration: underline;
}