.tool-header[data-astro-cid-7nsqux3g]{margin-bottom:2rem}.calculator-card[data-astro-cid-7nsqux3g]{max-width:360px;margin:0 auto 2rem;border:1px solid var(--color-border);border-radius:16px;padding:1.25rem;background:var(--color-bg)}.display[data-astro-cid-7nsqux3g]{background:#f6f8fa;border-radius:12px;padding:1rem 1.25rem;margin-bottom:1rem;text-align:right;min-height:80px;display:flex;flex-direction:column;justify-content:flex-end}.display-history[data-astro-cid-7nsqux3g]{font-size:.85rem;color:var(--color-secondary);min-height:1.2rem;margin-bottom:.25rem}.display-main[data-astro-cid-7nsqux3g]{font-size:2.2rem;font-weight:600;color:var(--color-text);word-break:break-all;line-height:1.2}.keypad[data-astro-cid-7nsqux3g]{display:grid;grid-template-columns:repeat(4,1fr);gap:.6rem}.key[data-astro-cid-7nsqux3g]{aspect-ratio:1;border:none;border-radius:12px;font-size:1.15rem;font-weight:600;cursor:pointer;transition:all .1s ease;display:flex;align-items:center;justify-content:center;user-select:none;-webkit-tap-highlight-color:transparent}.key[data-astro-cid-7nsqux3g]:active,.key[data-astro-cid-7nsqux3g].active{transform:scale(.92)}.key-num[data-astro-cid-7nsqux3g]{background:var(--color-bg);color:var(--color-text);border:1px solid var(--color-border)}.key-num[data-astro-cid-7nsqux3g]:hover{background:var(--color-border)}.key-op[data-astro-cid-7nsqux3g]{background:#e8e6f0;color:#6b4ee6;border:1px solid #d4d0e8}.key-op[data-astro-cid-7nsqux3g]:hover{background:#ddd8ec}.key-op[data-astro-cid-7nsqux3g].active,.key-op[data-astro-cid-7nsqux3g]:active{background:#6b4ee6;color:#fff}.key-fn[data-astro-cid-7nsqux3g]{background:#f0eeea;color:#8a7a60;border:1px solid #e0d8cc}.key-fn[data-astro-cid-7nsqux3g]:hover{background:#e5e0d5}.key-equal[data-astro-cid-7nsqux3g]{background:#6b4ee6;color:#fff;border:none}.key-equal[data-astro-cid-7nsqux3g]:hover{background:#5a3fd0}.key-equal[data-astro-cid-7nsqux3g]:active,.key-equal[data-astro-cid-7nsqux3g].active{background:#4a2fb8}.info-section[data-astro-cid-7nsqux3g]{margin-bottom:2rem}.info-section[data-astro-cid-7nsqux3g] h2[data-astro-cid-7nsqux3g]{font-size:1.3rem;margin-bottom:1rem;color:var(--color-text)}.info-section[data-astro-cid-7nsqux3g] p[data-astro-cid-7nsqux3g]{line-height:1.7;color:var(--color-secondary)}.feature-list[data-astro-cid-7nsqux3g]{list-style:none;padding:0;margin:0}.feature-list[data-astro-cid-7nsqux3g] li[data-astro-cid-7nsqux3g]{padding:.5rem 0 .5rem 1.5rem;position:relative;color:var(--color-secondary);line-height:1.6}.feature-list[data-astro-cid-7nsqux3g] li[data-astro-cid-7nsqux3g]:before{content:"✓";position:absolute;left:0;color:var(--color-primary);font-weight:700}.faq-list[data-astro-cid-7nsqux3g]{display:flex;flex-direction:column;gap:.5rem}.faq-item[data-astro-cid-7nsqux3g]{border:1px solid var(--color-border);border-radius:8px;overflow:hidden}.faq-item[data-astro-cid-7nsqux3g] summary[data-astro-cid-7nsqux3g]{padding:1rem 1.25rem;cursor:pointer;font-weight:600;font-size:.95rem;color:var(--color-text);list-style:none;display:flex;align-items:center;gap:.5rem}.faq-item[data-astro-cid-7nsqux3g] summary[data-astro-cid-7nsqux3g]::-webkit-details-marker{display:none}.faq-item[data-astro-cid-7nsqux3g] summary[data-astro-cid-7nsqux3g]:before{content:"+";font-size:1.2rem;color:var(--color-primary);min-width:20px}.faq-item[data-astro-cid-7nsqux3g][open] summary[data-astro-cid-7nsqux3g]:before{content:"−"}.faq-item[data-astro-cid-7nsqux3g] p[data-astro-cid-7nsqux3g]{padding:0 1.25rem 1rem;margin:0;color:var(--color-secondary);line-height:1.7;font-size:.9rem}@media(prefers-color-scheme:dark){.display[data-astro-cid-7nsqux3g]{background:#161b22}.key-num[data-astro-cid-7nsqux3g]{background:#1a1d23;border-color:#30363d}.key-num[data-astro-cid-7nsqux3g]:hover{background:#24282e}.key-op[data-astro-cid-7nsqux3g]{background:#2d2645;color:#a494f0;border-color:#3d3560}.key-op[data-astro-cid-7nsqux3g]:hover{background:#3a3255}.key-op[data-astro-cid-7nsqux3g].active,.key-op[data-astro-cid-7nsqux3g]:active{background:#6b4ee6;color:#fff}.key-fn[data-astro-cid-7nsqux3g]{background:#2a2825;color:#b0a080;border-color:#3a3830}.key-fn[data-astro-cid-7nsqux3g]:hover{background:#35322a}.key-equal[data-astro-cid-7nsqux3g]{background:#6b4ee6}.key-equal[data-astro-cid-7nsqux3g]:hover{background:#7a5ff0}}@media(max-width:480px){.calculator-card[data-astro-cid-7nsqux3g]{max-width:100%;padding:.75rem}.display-main[data-astro-cid-7nsqux3g]{font-size:1.8rem}.key[data-astro-cid-7nsqux3g]{font-size:1rem;border-radius:10px}.keypad[data-astro-cid-7nsqux3g]{gap:.4rem}}