.tool-header[data-astro-cid-4ydukciv]{text-align:center;margin-bottom:2rem}.tool-header[data-astro-cid-4ydukciv] h1[data-astro-cid-4ydukciv]{font-size:1.8rem;margin-bottom:.5rem;color:var(--color-primary)}.tool-header[data-astro-cid-4ydukciv] p[data-astro-cid-4ydukciv]{color:var(--color-secondary);max-width:600px;margin:0 auto}.controls-card[data-astro-cid-4ydukciv]{background:var(--color-bg);border:1px solid var(--color-border);border-radius:10px;padding:1.5rem;margin-bottom:1.5rem}.input-group[data-astro-cid-4ydukciv]{margin-bottom:1rem}.input-group[data-astro-cid-4ydukciv] label[data-astro-cid-4ydukciv]{display:block;margin-bottom:.5rem;font-weight:500;color:var(--color-text)}.text-input[data-astro-cid-4ydukciv],.number-input[data-astro-cid-4ydukciv]{width:100%;padding:.75rem 1rem;border:1px solid var(--color-border);border-radius:8px;font-size:1rem;background:var(--color-bg);color:var(--color-text);box-sizing:border-box}.text-input[data-astro-cid-4ydukciv]:focus,.number-input[data-astro-cid-4ydukciv]:focus{outline:none;border-color:var(--color-primary)}.button-group[data-astro-cid-4ydukciv]{display:flex;gap:.75rem;flex-wrap:wrap}.btn-primary[data-astro-cid-4ydukciv]{background:var(--color-primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;font-size:1rem;cursor:pointer;font-weight:500;transition:opacity .2s}.btn-primary[data-astro-cid-4ydukciv]:hover{opacity:.9}.results-card[data-astro-cid-4ydukciv]{background:var(--color-bg);border:1px solid var(--color-border);border-radius:10px;padding:1.5rem;margin-bottom:1.5rem;text-align:center}.results-title[data-astro-cid-4ydukciv]{font-size:1.1rem;color:var(--color-secondary);margin-bottom:.5rem}.sigfig-count[data-astro-cid-4ydukciv]{font-size:3rem;font-weight:700;color:var(--color-primary);margin:.5rem 0}.digit-display[data-astro-cid-4ydukciv]{font-size:1.6rem;font-family:SF Mono,Monaco,monospace;margin:1rem 0;letter-spacing:.15em;min-height:2rem}.digit-sig[data-astro-cid-4ydukciv]{color:#28a745;font-weight:700;border-bottom:2px solid #28a745;padding:0 .1em}.digit-non-sig[data-astro-cid-4ydukciv]{color:#adb5bd;font-weight:400}.explanation[data-astro-cid-4ydukciv]{text-align:left;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--color-border);color:var(--color-secondary);font-size:.9rem}.explanation[data-astro-cid-4ydukciv] p[data-astro-cid-4ydukciv]{margin:.4rem 0}.round-card[data-astro-cid-4ydukciv] .round-row[data-astro-cid-4ydukciv]{display:flex;align-items:flex-end;gap:1rem;flex-wrap:wrap}.round-input[data-astro-cid-4ydukciv]{display:flex;align-items:center;gap:.5rem;flex:1;min-width:200px;margin-bottom:0}.round-input[data-astro-cid-4ydukciv] label[data-astro-cid-4ydukciv]{margin-bottom:0;white-space:nowrap}.round-input[data-astro-cid-4ydukciv] .number-input[data-astro-cid-4ydukciv]{width:80px;flex-shrink:0}.input-suffix[data-astro-cid-4ydukciv]{color:var(--color-secondary);font-size:.9rem}.round-result[data-astro-cid-4ydukciv]{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--color-border);font-size:1.2rem}.round-label[data-astro-cid-4ydukciv]{color:var(--color-secondary)}.round-value[data-astro-cid-4ydukciv]{font-weight:700;color:var(--color-primary);font-family:SF Mono,Monaco,monospace}.examples-card[data-astro-cid-4ydukciv]{background:var(--color-bg);border:1px solid var(--color-border);border-radius:10px;padding:1.5rem;margin-bottom:1.5rem}.examples-card[data-astro-cid-4ydukciv] h3[data-astro-cid-4ydukciv]{margin:0 0 1rem;font-size:1.1rem;color:var(--color-text)}.examples-grid[data-astro-cid-4ydukciv]{display:flex;gap:.5rem;flex-wrap:wrap}.example-chip[data-astro-cid-4ydukciv]{background:var(--color-bg);border:1px solid var(--color-border);border-radius:6px;padding:.4rem .8rem;font-size:.9rem;font-family:SF Mono,Monaco,monospace;cursor:pointer;color:var(--color-text);transition:all .2s}.example-chip[data-astro-cid-4ydukciv]:hover{border-color:var(--color-primary);background:var(--color-primary);color:#fff}.rules-card[data-astro-cid-4ydukciv]{background:var(--color-bg);border:1px solid var(--color-border);border-radius:10px;padding:1.5rem;margin-bottom:1.5rem}.rules-card[data-astro-cid-4ydukciv] summary[data-astro-cid-4ydukciv]{font-weight:600;font-size:1.1rem;color:var(--color-text);cursor:pointer}.rules-content[data-astro-cid-4ydukciv]{margin-top:1rem}.rules-list[data-astro-cid-4ydukciv]{padding-left:1.2rem;line-height:1.8;color:var(--color-secondary)}.rules-list[data-astro-cid-4ydukciv] li[data-astro-cid-4ydukciv]{margin-bottom:.5rem}.info-section[data-astro-cid-4ydukciv]{margin-bottom:2rem}.info-section[data-astro-cid-4ydukciv] h2[data-astro-cid-4ydukciv]{font-size:1.3rem;margin-bottom:1rem;color:var(--color-text)}.info-section[data-astro-cid-4ydukciv] p[data-astro-cid-4ydukciv]{line-height:1.7;color:var(--color-secondary)}.feature-list[data-astro-cid-4ydukciv]{list-style:none;padding:0;margin:0}.feature-list[data-astro-cid-4ydukciv] li[data-astro-cid-4ydukciv]{padding:.5rem 0 .5rem 1.5rem;position:relative;color:var(--color-secondary);line-height:1.6}.feature-list[data-astro-cid-4ydukciv] li[data-astro-cid-4ydukciv]:before{content:"✓";position:absolute;left:0;color:var(--color-primary);font-weight:700}.faq-section[data-astro-cid-4ydukciv] .faq-list[data-astro-cid-4ydukciv]{display:flex;flex-direction:column;gap:.75rem}.faq-item[data-astro-cid-4ydukciv]{border:1px solid var(--color-border);border-radius:8px;overflow:hidden}.faq-item[data-astro-cid-4ydukciv] summary[data-astro-cid-4ydukciv]{padding:1rem 1.2rem;font-weight:500;cursor:pointer;background:var(--color-bg);color:var(--color-text)}.faq-item[data-astro-cid-4ydukciv] p[data-astro-cid-4ydukciv]{padding:1rem 1.2rem;margin:0;color:var(--color-secondary);line-height:1.6;border-top:1px solid var(--color-border)}@media(prefers-color-scheme:dark){.digit-sig[data-astro-cid-4ydukciv]{color:#4ade80;border-bottom-color:#4ade80}.digit-non-sig[data-astro-cid-4ydukciv]{color:#6b7280}}@media(max-width:600px){.round-row[data-astro-cid-4ydukciv]{flex-direction:column;align-items:stretch}.round-input[data-astro-cid-4ydukciv]{flex-direction:column;align-items:flex-start}.round-input[data-astro-cid-4ydukciv] .number-input[data-astro-cid-4ydukciv]{width:100%}.sigfig-count[data-astro-cid-4ydukciv]{font-size:2.5rem}.digit-display[data-astro-cid-4ydukciv]{font-size:1.2rem}}