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22px;font-family:inherit;font-size:.9rem;transition:color .2s,border-color .2s}.tab-btn:hover{color:var(--calc-text-primary)}.tab-btn.active{color:var(--acc);border-bottom-color:var(--acc);font-weight:600}.tab-content{display:none}.tab-content.active{display:block}.calc-grid{grid-template-columns:360px 1fr;align-items:start;gap:20px;display:grid}.card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);padding:20px}.input-card{border-left:3px solid var(--acc)}.result-card{border-left:3px solid var(--calc-purple)}.section-label{text-transform:uppercase;letter-spacing:.08em;color:var(--calc-text-muted);margin-bottom:10px;font-size:.75rem;font-weight:600}.preset-chips{flex-wrap:wrap;gap:8px;margin-bottom:18px;display:flex}.preset-chip{border:1.5px solid var(--calc-border-default);color:var(--calc-text-dim);cursor:pointer;white-space:nowrap;background:#ffffff08;border-radius:999px;padding:7px 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12px;font-family:inherit;font-size:.92rem;transition:border-color .2s}.glass-input:focus,.glass-select:focus{border-color:var(--acc);outline:none}.unit-hint{color:var(--calc-text-muted);margin-top:5px;font-size:.72rem}.hero-result{text-align:center;background:linear-gradient(135deg, var(--acc-soft), #a855f70d);border-radius:var(--calc-radius-md);border:1px solid #22d3ee4d;margin-bottom:16px;padding:24px 16px}.hero-label{color:var(--calc-text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px;font-size:.72rem}.hero-value{color:var(--acc);font-size:2.4rem;font-weight:800;line-height:1.1;font-family:var(--calc-font-mono,"JetBrains Mono", monospace)}.hero-sub{color:var(--calc-text-dim);margin-top:8px;font-size:.86rem}.stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px;display:grid}.stat-card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-left:3px solid var(--calc-purple);border-radius:10px;padding:11px 13px}.stat-label{color:var(--calc-text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px;font-size:.67rem}.stat-value{color:var(--calc-text-primary);font-size:1rem;font-weight:700;font-family:var(--calc-font-mono,"JetBrains Mono", monospace)}.formula-strip{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.formula-pill{border:1px solid var(--calc-border-default);color:var(--calc-text-dim);background:#ffffff0a;border-radius:999px;padding:5px 14px;font-family:Courier New,monospace;font-size:.73rem}.interp{border-left:3px solid var(--acc);background:var(--acc-soft);color:var(--calc-text-primary);border-radius:8px;margin-bottom:16px;padding:12px 16px;font-size:.85rem;line-height:1.55}.alert{border-left:3px solid;border-radius:8px;margin-top:10px;padding:10px 14px;font-size:.82rem;line-height:1.5}.alert-warn{border-color:var(--amber);color:#fcd34d;background:#f59e0b14}.action-bar{flex-wrap:wrap;gap:8px;padding-top:4px;display:flex}.action-btn{border:1px solid var(--calc-border-default);color:var(--calc-text-dim);cursor:pointer;background:#ffffff08;border-radius:8px;align-items:center;gap:6px;padding:8px 16px;font-family:inherit;font-size:.8rem;font-weight:600;transition:color .2s,border-color .2s;display:inline-flex}.action-btn:hover{border-color:var(--acc);color:var(--acc)}.action-btn.copied{border-color:var(--green);color:var(--green)}.drip-visual{flex-direction:column;align-items:center;gap:0;padding:14px 0 4px;display:flex}.iv-bag{border:2px solid var(--acc);background:linear-gradient(180deg, transparent 0 18%, var(--acc-soft) 18% 100%);border-radius:8px 8px 14px 14px;width:64px;height:86px;position:relative}.iv-bag:before{content:"";border:2px solid var(--acc);border-bottom:none;border-radius:4px 4px 0 0;width:14px;height:8px;position:absolute;top:-8px;left:50%;transform:translate(-50%)}.drip-chamber{border:2px solid var(--calc-border-strong,#fff3);background:#ffffff05;border-top:none;border-radius:0 0 8px 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