.tool-container { max-width: 560px; margin: 0 auto; padding: 20px 16px 60px; }
.tool-header { text-align: center; padding: 40px 0 24px; }
.tool-icon { font-size: 3rem; margin-bottom: 12px; }
.tool-header h1 { font-size: 1.8rem; margin-bottom: 8px; }
.subtitle { color: var(--accent-color); font-size: 0.95rem; }
.primary-btn { display: block; width: 100%; padding: 14px; background: var(--primary-color); color: #fff; border: none; border-radius: 12px; font-size: 1rem; font-weight: 600; cursor: pointer; margin-bottom: 12px; transition: opacity 0.2s; }
.primary-btn:hover { opacity: 0.85; }
.secondary-btn { display: block; width: 100%; padding: 12px; background: transparent; color: var(--text-color); border: 2px solid var(--input-border); border-radius: 12px; font-size: 0.95rem; cursor: pointer; }
.nick-options { background: var(--card-bg); border-radius: 16px; padding: 20px; margin-bottom: 20px; }
.option-label { font-size: 0.9rem; opacity: 0.7; margin-bottom: 10px; }
.style-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.style-btn, .len-btn { padding: 10px; background: var(--input-bg); border: 2px solid var(--input-border); border-radius: 8px; color: var(--text-color); cursor: pointer; font-size: 0.9rem; transition: all 0.2s; }
.style-btn.active, .len-btn.active { border-color: var(--primary-color); color: var(--primary-color); font-weight: 600; }
.keyword-input { width: 100%; padding: 10px 14px; background: var(--input-bg); border: 1px solid var(--input-border); border-radius: 8px; color: var(--text-color); font-size: 1rem; }
.nick-results { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.nick-item { background: var(--card-bg); border: 2px solid var(--input-border); border-radius: 10px; padding: 14px 16px; cursor: pointer; font-size: 1.05rem; font-weight: 600; display: flex; justify-content: space-between; align-items: center; transition: border-color 0.2s; }
.nick-item:hover { border-color: var(--primary-color); }
.nick-item.copied { border-color: #00b894; color: #00b894; }
.copy-hint { font-size: 0.75rem; opacity: 0.5; font-weight: 400; }
.recommend-section { margin: 8px 0 16px; }
.recommend-title { text-align: center; font-size: 0.9rem; opacity: 0.7; margin-bottom: 12px; }
.recommend-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.recommend-btn { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 4px; background: var(--card-bg); border-radius: 10px; text-decoration: none; color: var(--text-color); font-size: 0.8rem; transition: background 0.2s; }
.recommend-btn:hover { background: var(--input-bg); }
.rec-icon { font-size: 1.4rem; }