.pct-wrap{--p:#2563eb;--pd:#1d4ed8;--t:#0f172a;--m:#64748b;--b:#e2e8f0;--bg:#f8fafc;max-width:900px;margin:24px auto;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--t)}.pct-wrap *{box-sizing:border-box}.pct-card{background:#fff;border:1px solid var(--b);border-radius:22px;padding:32px;box-shadow:0 12px 35px rgba(15,23,42,.07)}.pct-heading{text-align:center;margin-bottom:24px}.pct-icon{width:52px;height:52px;margin:0 auto 13px;border-radius:15px;background:#eff6ff;color:var(--p);display:grid;place-items:center}.pct-icon svg{width:27px;height:27px}.pct-heading h2{margin:0 0 7px;font-size:28px;line-height:1.2}.pct-heading p{margin:0;color:var(--m);font-size:15px}.pct-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;background:var(--bg);border:1px solid var(--b);padding:6px;border-radius:13px;margin-bottom:20px}.pct-tab{border:0;background:transparent;color:var(--m);border-radius:9px;padding:10px 8px;font-weight:700;font-size:12px;cursor:pointer}.pct-tab.is-active{background:#fff;color:var(--p);box-shadow:0 2px 8px rgba(15,23,42,.08)}.pct-panel{border:1px solid var(--b);border-radius:16px;padding:22px}.pct-equation{display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:14px}.pct-field label{display:block;font-size:12px;font-weight:700;color:var(--m);margin-bottom:7px}.pct-input-wrap{position:relative}.pct-input-wrap input{width:100%;border:1px solid #cbd5e1;border-radius:11px;padding:13px 40px 13px 13px;background:#fff;color:var(--t);font-size:17px;font-weight:650;outline:none}.pct-input-wrap input:focus{border-color:#93c5fd;box-shadow:0 0 0 3px #dbeafe}.pct-input-wrap span{position:absolute;right:13px;top:50%;transform:translateY(-50%);color:var(--m);font-weight:700}.pct-operator{font-size:13px;font-weight:800;color:var(--p);padding-bottom:14px;white-space:nowrap}.pct-result{margin-top:18px;border-radius:13px;background:#eff6ff;padding:18px;text-align:center}.pct-result span{display:block;color:var(--m);font-size:12px;font-weight:700;margin-bottom:5px}.pct-answer{display:block;color:var(--p);font-size:30px;line-height:1.15;overflow-wrap:anywhere}.pct-direction{display:flex;gap:8px;margin-top:13px}.pct-direction-btn{flex:1;border:1px solid var(--b);background:#fff;border-radius:9px;padding:9px;font-weight:700;font-size:12px;color:var(--m);cursor:pointer}.pct-direction-btn.is-active{background:#eff6ff;border-color:#bfdbfe;color:var(--p)}.pct-bottom{display:flex;gap:9px;margin-top:15px}.pct-reset,.pct-copy{border-radius:10px;padding:11px 15px;font-weight:700;font-size:13px;cursor:pointer}.pct-reset{border:1px solid #cbd5e1;background:#fff;color:var(--t)}.pct-copy{flex:1;border:0;background:var(--p);color:#fff}.pct-copy:hover{background:var(--pd)}.pct-message{min-height:18px;text-align:center;font-size:12px;color:#15803d;margin-top:9px}.pct-formula{display:flex;align-items:center;gap:10px;padding:14px;margin-top:18px;border:1px solid var(--b);border-radius:12px;background:var(--bg)}.pct-formula-icon{width:31px;height:31px;flex:0 0 31px;border-radius:9px;background:#fff;display:grid;place-items:center;color:var(--p);font-weight:800}.pct-formula div:last-child{display:flex;flex-direction:column;gap:2px}.pct-formula strong{font-size:12px}.pct-formula span{font-size:11px;color:var(--m)}.pct-privacy{display:flex;align-items:center;justify-content:center;gap:7px;color:var(--m);font-size:11px;margin-top:19px;text-align:center}.pct-privacy svg{width:17px;height:17px;flex:0 0 17px}@media(max-width:700px){.pct-card{padding:20px;border-radius:17px}.pct-heading h2{font-size:24px}.pct-tabs{grid-template-columns:1fr 1fr}.pct-equation{grid-template-columns:1fr;gap:8px}.pct-operator{padding:0;text-align:center}.pct-bottom{flex-direction:column}.pct-copy,.pct-reset{width:100%}}