:root{--ink:#12223d;--muted:#6d7890;--blue:#1859e8;--blue2:#0c43bc;--line:#dfe5ef;--soft:#f5f8fd;--white:#fff;--shadow:0 20px 50px rgba(24,57,112,.10)}*{box-sizing:border-box}html{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff}body{margin:0;min-height:100vh}a{color:inherit;text-decoration:none}header{height:74px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:28px;padding:0 30px;position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);z-index:10}.brand{display:flex;align-items:center;gap:10px;font-size:1.15rem;font-weight:800;min-width:210px}.brand b{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;font-size:1.2rem}.search{max-width:540px;flex:1;display:flex;align-items:center;gap:8px;background:var(--soft);border:1px solid transparent;border-radius:12px;padding:0 14px}.search:focus-within{border-color:#8caeff;background:#fff}.search input{border:0;outline:0;background:transparent;width:100%;height:44px;font-size:1rem}.lang{margin-left:auto;color:var(--blue);font-weight:700}.layout{display:grid;grid-template-columns:240px minmax(0,1fr);max-width:1440px;margin:auto}aside{padding:30px 20px;border-right:1px solid var(--line);min-height:calc(100vh - 74px)}.aside-label,.eyebrow{font-size:.72rem;text-transform:uppercase;letter-spacing:.11em;color:var(--muted);font-weight:800;margin:0 0 14px}.nav-item{display:flex;align-items:center;gap:12px;padding:11px 13px;border-radius:10px;color:#45536b;font-weight:600;margin:2px 0}.nav-item span{width:25px;text-align:center;color:var(--blue);font-weight:800}.nav-item:hover,.nav-item.active{background:#eaf1ff;color:var(--blue)}main{padding:54px clamp(28px,6vw,96px) 80px;max-width:1100px;width:100%;margin:auto}.intro{max-width:710px;margin-bottom:42px}.intro h1,.tool-head h1{font-size:clamp(2.15rem,4.5vw,4.4rem);line-height:1.02;letter-spacing:-.055em;margin:0 0 18px}.intro p,.tool-head p{font-size:1.08rem;color:var(--muted);line-height:1.65}.category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.category-card{display:flex;align-items:center;gap:18px;border:1px solid var(--line);border-radius:17px;padding:20px;background:#fff;transition:.2s}.category-card:hover{transform:translateY(-2px);border-color:#aac1f5;box-shadow:var(--shadow)}.big-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:#eaf1ff;color:var(--blue);font-weight:800;font-size:1.1rem}.category-card h2{font-size:1.05rem;margin:0 0 5px}.category-card p{margin:0;color:var(--muted);font-size:.86rem}.category-card b{margin-left:auto;color:var(--blue);font-size:1.4rem}.tool-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px}.tool-head h1{font-size:clamp(2.3rem,5vw,4rem);margin-bottom:10px}.tool-head p{margin:0}.unit-count{width:90px;height:90px;background:var(--blue);color:#fff;border-radius:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:1.7rem;font-weight:800;box-shadow:0 14px 32px rgba(24,89,232,.25)}.unit-count small{font-size:.7rem;font-weight:600;opacity:.8}.workspace{border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow);overflow:hidden}.input-block{padding:25px;background:linear-gradient(135deg,#f6f9ff,#edf3ff)}label{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;font-weight:800;color:#52617a;margin-bottom:10px}.value-row{display:grid;grid-template-columns:1fr minmax(210px,.45fr);gap:10px}.value-row input,.value-row select{height:60px;border:1px solid #cbd5e6;border-radius:12px;background:#fff;padding:0 16px;color:var(--ink);font-size:1rem;outline:0}.value-row input{font-size:1.55rem;font-weight:750;font-variant-numeric:tabular-nums}.value-row input:focus,.value-row select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(24,89,232,.12)}.results-head{display:flex;justify-content:space-between;align-items:center;padding:22px 25px 8px}.results-head h2,.popular h2{font-size:1rem;margin:0}.ghost,.copy{border:0;background:transparent;color:var(--blue);font-weight:750;cursor:pointer}.results{padding:0 15px 15px}.result-row{display:grid;grid-template-columns:minmax(150px,1fr) minmax(100px,1.2fr) 70px;align-items:center;gap:15px;padding:14px 10px;border-bottom:1px solid #edf0f5}.result-row:last-child{border:0}.result-row div{display:flex;flex-direction:column}.result-row span{font-size:.91rem;font-weight:650}.result-row small{color:var(--muted);margin-top:2px}.result-row strong{text-align:right;font-size:1.04rem;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.popular{margin-top:32px}.popular>div{display:flex;flex-wrap:wrap;gap:9px;margin-top:13px}.popular a{padding:9px 12px;border:1px solid var(--line);border-radius:999px;color:#4a5870;font-size:.85rem}.popular a:hover{color:var(--blue);border-color:#9bb8f8}footer{border-top:1px solid var(--line);padding:25px;text-align:center;color:var(--muted);font-size:.85rem}@media(max-width:850px){header{padding:0 16px;height:66px}.brand{min-width:auto}.brand:not(b){font-size:0}.brand b{font-size:1.1rem}.search{max-width:none}.lang{font-size:.86rem}.layout{display:block}aside{display:flex;overflow-x:auto;min-height:0;border-right:0;border-bottom:1px solid var(--line);padding:10px 14px;gap:4px}.aside-label{display:none}.nav-item{white-space:nowrap;font-size:.85rem}.nav-item span{display:none}main{padding:34px 18px 60px}.category-grid{grid-template-columns:1fr}.tool-head{align-items:center}.unit-count{width:70px;height:70px;border-radius:21px}.value-row{grid-template-columns:1fr}.result-row{grid-template-columns:1fr minmax(90px,1fr) 58px}.copy{font-size:.75rem}}@media(max-width:470px){.search{display:none}.intro h1,.tool-head h1{font-size:2.3rem}.tool-head p{font-size:.94rem}.unit-count{display:none}.result-row{gap:8px;padding:13px 6px}.result-row span{font-size:.82rem}.result-row strong{font-size:.9rem}}