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.15s}.settings-btn:hover{background:var(--bg-mid);color:var(--text-primary);border-color:var(--text-muted)}.settings-dropdown{position:absolute;top:calc(100% + 6px);right:0;min-width:160px;background:var(--bg-panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 12px 40px #0009;z-index:200;overflow:hidden;padding:4px;display:flex;flex-direction:column;gap:1px}.settings-item{display:block;width:100%;background:none;border:none;border-radius:5px;padding:8px 12px;text-align:left;font-size:.88rem;font-family:inherit;font-weight:400;cursor:pointer;color:var(--text-secondary);transition:background .1s,color .1s}.settings-item:hover{background:var(--bg-mid);color:var(--text-primary)}.settings-item-danger{color:#f04040}.settings-item-danger:hover{background:#f040401a;color:#f55}.main-board-btn{display:flex;align-items:center;gap:5px;background:transparent;border:1px solid var(--border);border-radius:6px;padding:4px 12px;color:var(--text-secondary);font-size:.85rem;font-family:inherit;font-weight:500;cursor:pointer;transition:background .15s,color .15s,border-color .15s;white-space:nowrap}.main-board-btn:hover{background:var(--bg-mid);color:var(--text-primary);border-color:var(--text-muted)}.viewing-blueprint-label{font-size:.78rem;font-weight:500;color:var(--interactive);opacity:.85;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px}.app-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100vw;height:100vh;height:100svh;gap:16px;background:var(--bg-base);color:var(--text-muted);font-size:.85rem;font-weight:500;letter-spacing:.04em}.app-loading .logo-glyph{font-size:2.2rem;animation:pulse-glyph 1.6s ease-in-out infinite}@keyframes pulse-glyph{0%,to{opacity:1}50%{opacity:.25}}.share-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.share-modal{background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:24px 28px;min-width:420px;max-width:90vw;display:flex;flex-direction:column;gap:16px;box-shadow:0 24px 60px #0009}.share-modal-title{color:var(--text-primary);font-weight:600;font-size:.95rem;margin:0}.share-modal-row{display:flex;gap:8px}.share-modal-input{flex:1;background:var(--bg-base);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);padding:8px 12px;font-size:.8rem;font-family:inherit}.share-modal-copy{background:var(--interactive);color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:.82rem;font-weight:600;font-family:inherit;transition:background .15s}.share-modal-copy:hover{background:var(--interactive-glow)}.share-modal-close{align-self:flex-end;background:transparent;border:1px solid var(--border);color:var(--text-secondary);padding:6px 16px;border-radius:6px;cursor:pointer;font-size:.82rem;font-family:inherit;transition:color .15s,border-color .15s,background .15s}.share-modal-close:hover{background:var(--bg-mid);color:var(--text-primary);border-color:var(--text-muted)}.import-board-list{display:flex;flex-direction:column;gap:4px;max-height:200px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--border) transparent}.import-board-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:4px 0}.import-board-name{font-size:.88rem;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.import-board-empty{font-size:.82rem;color:var(--text-muted);font-style:italic;margin:4px 0}@media (max-width: 640px){.app-header{padding:6px 12px;gap:8px}}