.fraction-calc-container{background:hsl(var(--bg-surface));border:1px solid hsl(var(--border-subtle));border-radius:var(--radius-xl, 16px);padding:24px;box-shadow:var(--shadow-lg);margin-bottom:32px}.calc-header-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:24px;border-bottom:1px solid hsl(var(--border-subtle));padding-bottom:16px}.calc-title-group{display:flex;align-items:center;gap:12px}.calc-badge{background:#38bdf826;color:hsl(var(--text-lcd-live));border:1px solid rgba(56,189,248,.3);padding:4px 10px;border-radius:9999px;font-size:.75rem;font-weight:700;letter-spacing:.04em}.calc-title{font-size:1.25rem;font-weight:700;color:hsl(var(--text-primary));letter-spacing:-.02em;margin:0}.calc-controls{display:flex;gap:8px;background:hsl(var(--bg-card));padding:4px;border-radius:10px;border:1px solid hsl(var(--border-subtle));max-width:100%;min-width:0;overflow-x:auto}.mode-tab{background:none;border:none;color:hsl(var(--text-secondary));padding:8px 12px;font-size:.82rem;font-weight:600;border-radius:7px;cursor:pointer;white-space:nowrap;transition:transform .15s ease,opacity .15s ease,background-color .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease}.mode-tab.active{background:hsl(var(--bg-elevated));color:hsl(var(--text-primary));border:1px solid hsl(var(--border-subtle));box-shadow:var(--shadow-sm)}.bento-fraction-stage{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}@media(max-width:920px){.bento-fraction-stage{grid-template-columns:1fr}}.main-fraction-card{background:hsl(var(--bg-card));border:1px solid hsl(var(--border-subtle));border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:20px;max-width:100%;min-width:0;overflow-x:hidden}.presets-row{display:flex;align-items:center;gap:10px;font-size:.82rem;color:hsl(var(--text-muted));max-width:100%;min-width:0;overflow:hidden}.presets-scroll{display:flex;gap:6px;overflow-x:auto;max-width:100%;min-width:0;padding-bottom:4px;-webkit-overflow-scrolling:touch}.preset-btn{background:hsl(var(--bg-surface));border:1px solid hsl(var(--border-subtle));color:hsl(var(--text-secondary));padding:4px 10px;border-radius:6px;font-size:.8rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:transform .15s ease,opacity .15s ease,background-color .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease}.preset-btn:hover{border-color:hsl(var(--border-focus));color:hsl(var(--text-primary));background:hsl(var(--bg-elevated))}.fraction-inputs-box{display:flex;align-items:center;justify-content:center;gap:16px;padding:24px 12px;background:hsl(var(--bg-surface));border:1px solid hsl(var(--border-subtle));border-radius:12px;flex-wrap:wrap}.fraction-unit{display:flex;flex-direction:column;align-items:center;width:72px}.frac-input{width:100%;background:hsl(var(--bg-card));border:2px solid hsl(var(--border-subtle));border-radius:8px;color:hsl(var(--text-primary));font-size:1.35rem;font-weight:700;text-align:center;padding:8px 4px;font-variant-numeric:tabular-nums;transition:border-color .15s ease}.frac-input:focus{outline:none;border-color:hsl(var(--border-focus));box-shadow:0 0 0 3px #38bdf833}.fraction-bar{width:100%;height:3px;background:hsl(var(--text-primary));margin:6px 0;border-radius:2px}.operator-selector{display:flex;flex-direction:column;gap:4px}.op-btn{width:34px;height:34px;border-radius:8px;background:hsl(var(--bg-card));border:1px solid hsl(var(--border-subtle));color:hsl(var(--text-secondary));font-size:1.15rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s ease,opacity .15s ease,background-color .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease}.op-btn:hover{color:hsl(var(--text-primary));border-color:hsl(var(--border-focus))}.op-btn.active{background:var(--btn-op-bg);color:#fff;border-color:var(--btn-op-bg);box-shadow:0 2px 8px #2563eb59}.equals-sign{font-size:1.8rem;font-weight:700;color:hsl(var(--text-muted))}.fraction-result-preview{min-width:80px;display:flex;flex-direction:column;align-items:center;justify-content:center}.res-fraction{display:flex;flex-direction:column;align-items:center;font-size:1.6rem;font-weight:800;color:hsl(var(--text-lcd-live))}.res-bar{background:hsl(var(--text-lcd-live));height:4px}.whole-number-display{font-size:2.2rem;font-weight:800;color:hsl(var(--text-lcd-live));display:none}.action-buttons-row{display:flex;gap:10px;flex-wrap:wrap}.primary-calc-btn{flex:2;background:var(--btn-op-bg);color:hsl(var(--btn-op-text));border:none;border-radius:10px;padding:12px 18px;font-size:.95rem;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:space-between;white-space:nowrap;transition:transform .15s ease,opacity .15s ease,background-color .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease;box-shadow:0 4px 12px #2563eb40}.primary-calc-btn:hover{background:#1d4ed8;color:#fff;transform:translateY(-1px)}.secondary-calc-btn,.toggle-sd-btn{flex:1;background:hsl(var(--bg-surface));border:1px solid hsl(var(--border-subtle));color:hsl(var(--text-secondary));border-radius:10px;padding:12px 14px;font-size:.88rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap;transition:transform .15s ease,opacity .15s ease,background-color .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease}.secondary-calc-btn:hover,.toggle-sd-btn:hover{color:hsl(var(--text-primary));border-color:hsl(var(--border-focus));background:hsl(var(--bg-elevated))}.btn-kbd{background:#00000040;padding:2px 6px;border-radius:4px;font-size:.72rem;font-family:var(--font-mono, monospace)}.frac-lcd{margin-top:4px}.lcd-main-result{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.lcd-unit-badge{font-size:.85rem;color:var(--text-lcd-dim);font-family:var(--font-sans);background:#0003;padding:4px 10px;border-radius:6px}.telemetry-fraction-card{background:hsl(var(--bg-card));border:1px solid hsl(var(--border-subtle));border-radius:14px;padding:20px;display:flex;flex-direction:column;gap:18px}.history-heading{display:flex;align-items:center;gap:8px;border-bottom:1px solid hsl(var(--border-subtle));padding-bottom:12px}.history-heading h3{font-size:1rem;font-weight:700;color:hsl(var(--text-primary));margin:0}.steps-content{display:flex;flex-direction:column;gap:10px;max-height:230px;overflow-y:auto}.step-item{display:flex;gap:10px;align-items:flex-start;font-size:.85rem;color:hsl(var(--text-secondary));line-height:1.5;background:hsl(var(--bg-surface));padding:10px 12px;border-radius:8px;border-left:3px solid hsl(var(--text-lcd-live))}.step-num{background:#38bdf826;color:hsl(var(--text-lcd-live));width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800;flex-shrink:0}.frac-history-tape{margin-top:auto;border-top:1px solid hsl(var(--border-subtle));padding-top:14px}.tape-header{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;font-weight:700;color:hsl(var(--text-muted));text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px}.clear-tape-btn{background:none;border:none;color:hsl(var(--text-secondary));font-size:.75rem;cursor:pointer;min-width:44px;min-height:28px;padding:6px 10px;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}.clear-tape-btn:hover{color:var(--btn-danger-bg)}.tape-list{list-style:none;display:flex;flex-direction:column;gap:6px;max-height:130px;overflow-y:auto}.tape-item{display:flex;justify-content:space-between;align-items:center;padding:6px 8px;background:hsl(var(--bg-surface));border-radius:6px;font-size:.82rem;cursor:pointer;transition:background .15s ease}.tape-item:hover{background:hsl(var(--bg-elevated))}.tape-expr{color:hsl(var(--text-secondary));font-family:var(--font-mono, monospace)}.tape-res{color:hsl(var(--text-primary))}.tape-empty{font-size:.8rem;color:hsl(var(--text-secondary));font-style:italic;text-align:center;padding:8px 0}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.hero-calc-header[data-astro-cid-5up7tqu3]{text-align:center;margin-top:16px;margin-bottom:12px;padding:0 16px}.main-title[data-astro-cid-5up7tqu3]{font-size:clamp(1.5rem,3.5vw,2.25rem);font-weight:800;color:hsl(var(--text-primary));letter-spacing:-.02em;margin-bottom:6px}.main-subtitle[data-astro-cid-5up7tqu3]{font-size:clamp(.88rem,1.8vw,1rem);color:hsl(var(--text-secondary));max-width:680px;margin:0 auto;line-height:1.45}