/* BUTTONS */
.nav-btn { background: transparent; border: 1px solid transparent; color: var(--text-secondary); padding: 8px 25px; border-radius: 8px; cursor: pointer; font-weight: 700; text-transform: uppercase; font-size: 0.9rem; transition: 0.3s; }
.nav-btn:hover { color: #fff; background: rgba(255,255,255,0.05); }
.nav-btn.active { background: linear-gradient(135deg, var(--accent-start), var(--accent-end)); color: white; box-shadow: 0 0 15px rgba(59, 130, 246, 0.3); }

.add-btn { background: linear-gradient(135deg, var(--accent-start), var(--accent-end)); color: #fff; border-color: transparent; box-shadow: 0 0 15px rgba(168, 85, 247, 0.4); margin-right: 15px; }
.add-btn:hover { background: linear-gradient(135deg, var(--accent-start), var(--accent-end)); }

.config-view-btn { border: 1px solid var(--accent-start); color: var(--accent-start); margin-right: 15px; }
.config-view-btn:hover { background: var(--accent-start); color: white; }

/* FIX: Hidden by default to prevent flash on load */
#compareBtn { display: none; border: 1px solid var(--banner-border); color: #d8b4fe; background: rgba(46, 16, 101, 0.3); animation: fadeIn 0.3s ease; }
/* FIX: Class to toggle visibility */
#compareBtn.is-visible { display: block; }
#compareBtn:hover { background: var(--banner-border); color: #fff; box-shadow: 0 0 15px rgba(168, 85, 247, 0.4); }

.select-btn { background: rgba(255,255,255,0.05); border: 1px solid #444; color: #999; padding: 5px 12px; border-radius: 6px; font-size: 0.75rem; font-weight: 800; text-transform: uppercase; cursor: pointer; transition: 0.2s; }
.select-btn:hover { background: #222; color: #fff; border-color: #666; }

.calc-btn { background: rgba(6, 182, 212, 0.1); border: 1px solid rgba(6, 182, 212, 0.3); color: var(--custom); padding: 5px 12px; border-radius: 6px; font-size: 0.75rem; font-weight: 800; text-transform: uppercase; cursor: pointer; transition: 0.2s; display: flex; align-items: center; gap: 5px; }
.calc-btn:hover { background: var(--custom); color: #000; box-shadow: 0 0 10px rgba(6, 182, 212, 0.3); }

.info-btn { position: absolute; bottom: 3px; right: 3px; width: 16px; height: 16px; font-size: 0.65rem; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1px solid #555; color: #aaa; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 10; transition: 0.2s; line-height: 1; font-family: serif; font-style: italic; font-weight: 900; }
.info-btn:hover { background: var(--accent-start); color: #fff; border-color: var(--accent-start); transform: scale(1.1); box-shadow: 0 0 8px rgba(59, 130, 246, 0.5); }

.sub-list-btn { background: transparent; border: 1px solid rgba(255,255,255,0.2); color: #888; width: 20px; height: 20px; border-radius: 4px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; font-size: 1rem; line-height: 0; transition: 0.2s; margin-left: auto; }
.sub-list-btn:hover { background: var(--accent-start); color: white; border-color: var(--accent-start); }

.trait-guide-btn { position: absolute; bottom: 12px; right: 15px; z-index: 5; background: rgba(0, 0, 0, 0.4); border: 1px solid rgba(255, 255, 255, 0.15); color: #ddd; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; padding: 4px 10px; border-radius: 6px; cursor: pointer; transition: 0.2s; display: flex; align-items: center; gap: 6px; backdrop-filter: blur(4px); }
.trait-guide-btn:hover { background: var(--accent-start); border-color: var(--accent-start); color: #fff; box-shadow: 0 0 10px rgba(59, 130, 246, 0.4); }

.action-btn { width: 100%; padding: 12px; background: linear-gradient(135deg, var(--accent-start), var(--accent-end)); border: none; color: white; font-weight: 800; border-radius: 8px; cursor: pointer; transition: 0.2s; }
.action-btn:hover { filter: brightness(1.1); }
.action-btn.secondary { background: var(--card-border); color: #ccc; }
.action-btn.secondary:hover { background: #333; color: #fff; }

.btn-calc-execute {
    width: auto;
    padding: 10px 25px;
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.btn-close-secondary {
    width: auto;
    padding: 10px 25px;
}

.btn-cp-action { background: var(--custom); color: #000; }

.header-toggle-btn { background: transparent; border: none; color: var(--text-secondary); cursor: pointer; font-size: 0.9rem; transition: 0.3s; line-height: 1; padding: 0; }
.header-toggle-btn:hover { color: var(--accent-start); }

.calc-info-btn { background: rgba(6, 182, 212, 0.15); border: 1px solid rgba(6, 182, 212, 0.4); color: var(--custom); width: 16px; height: 16px; border-radius: 50%; font-size: 0.6rem; font-weight:bold; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; transition: 0.2s; margin-left:5px; }
.calc-info-btn:hover { background: var(--custom); color: #000; box-shadow: 0 0 5px var(--custom); }