:root{--bg: #12151A;--surface: #1B1F27;--surface-2: #232833;--border: #2E3440;--text: #E8E6DE;--text-muted: #8A93A6;--text-faint: #565E6D;--gold: #C9A227;--teal: #3FA7A0;--danger: #C4554D;--danger-bg: #2E2323}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:-.01em}.shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.shell.app-shell{display:block;padding:0}.card{width:100%;max-width:380px;text-align:center}.card.wide{max-width:460px;text-align:left}.panel{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:16px;margin-bottom:12px}.input{width:100%;padding:10px 12px;border-radius:8px;font-size:14px;background:var(--surface);border:1px solid var(--border);color:var(--text);outline:none}.input:focus{border-color:var(--teal)}.input.center{text-align:center;letter-spacing:.35em}.btn{padding:10px 16px;border-radius:8px;font-size:14px;cursor:pointer;border:none}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-gold{background:var(--gold);color:var(--bg);font-weight:500}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-ghost:hover:not(:disabled){background:var(--surface-2)}.btn-row{display:flex;align-items:center;justify-content:center;gap:8px}.w-full{width:100%}.muted{color:var(--text-muted)}.faint{color:var(--text-faint)}.error-text{color:var(--danger);font-size:12px;margin-bottom:12px}.error-bar{background:var(--danger-bg);color:#e39a94;font-size:12px;padding:8px 16px;display:flex;align-items:center;gap:8px}.text-teal{color:var(--teal)}.text-gold{color:var(--gold)}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border)}.app-body{display:flex;height:calc(100vh - 49px)}.sidebar{width:240px;flex-shrink:0;border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-section{padding:12px;border-bottom:1px solid var(--border)}.sidebar-list{flex:1;overflow-y:auto;padding:8px}.contact-row{width:100%;padding:4px 4px 4px 8px;border-radius:8px;margin-bottom:4px;display:flex;align-items:center;justify-content:space-between;gap:4px}.contact-row.active{background:var(--surface-2)}.contact-row-main{flex:1;min-width:0;display:flex;align-items:center;gap:8px;background:none;border:none;cursor:pointer;color:var(--text);padding:4px 0;text-align:left}.dot{width:6px;height:6px;border-radius:50%;background:var(--teal);flex-shrink:0}.request-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.icon-btn{padding:4px;border-radius:6px;border:none;cursor:pointer;display:inline-flex}.main-pane{flex:1;display:flex;flex-direction:column;min-width:0}.chat-header{padding:10px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}.message-list{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px}.composer{padding:12px;border-top:1px solid var(--border);display:flex;align-items:center;gap:8px}.bubble{max-width:78%;padding:8px 12px;border-radius:10px;font-size:13.5px}.bubble.mine{margin-left:auto;background:#233029}.bubble.theirs{background:var(--surface-2)}.bubble img{border-radius:8px;max-height:190px;margin-bottom:4px;cursor:zoom-in}.bubble.locked-row{width:100%;max-width:100%;display:block;text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:8px 10px;cursor:pointer}.locked-row-text{font-size:10px;line-height:1.5;color:var(--text-faint);word-break:break-all;overflow-wrap:anywhere;display:block}.hotkey-hint{font-size:11px;color:var(--text-faint)}.hotkey-hint kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:1px 5px;font-size:10px;color:var(--text)}.lightbox-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d9;z-index:50;display:flex;align-items:center;justify-content:center;padding:32px;cursor:zoom-out}.lightbox-overlay img{max-width:90vw;max-height:90vh;border-radius:6px}.lightbox-close{position:absolute;top:20px;right:20px;background:var(--surface-2);border:1px solid var(--border);border-radius:8px;padding:6px;cursor:pointer;color:var(--text)}.empty-state{flex:1;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-faint)}.footer-toggle{padding:8px 16px;font-size:12px;color:var(--text-faint);display:flex;align-items:center;gap:6px;background:none;border:none;border-top:1px solid var(--border);cursor:pointer;width:100%;text-align:left}.footer-notes{padding:0 16px 12px;font-size:12px;line-height:1.6;color:var(--text-muted)}.hidden{display:none}.calc-display{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:20px 16px;text-align:right;font-size:32px;font-family:ui-monospace,monospace;margin-bottom:12px;overflow-x:auto;white-space:nowrap}.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.calc-btn{padding:16px 0;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:16px;cursor:pointer}.calc-btn:hover{background:var(--surface-2)}.calc-btn-op{background:var(--surface-2);color:var(--gold);font-weight:500}