:root{--bg:#f4f7fb;--card:#fff;--text:#0f1b3d;--muted:#6d7890;--line:#e3e8f0;--blue:#1574ff;--nav:#0d1b33;--green:#16a76d}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:var(--nav);padding:26px 20px;color:white;display:flex;flex-direction:column;z-index:10}.brand{font-size:25px;font-weight:800;margin-bottom:38px}.brand span{font-weight:500;color:#9cc3ff}.sidebar nav{display:grid;grid-gap:10px;gap:10px}.sidebar a{color:#d9e6fa;text-decoration:none;padding:13px 14px;border-radius:10px}.sidebar a:hover{background:#17345d;color:white}.sidebar-note{margin-top:auto;border-top:1px solid #233a59;padding-top:18px;display:grid;grid-gap:6px;gap:6px;font-size:13px;color:#9bb0cb}.page{margin-left:230px;padding:38px;max-width:1600px}.header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:26px;gap:20px}.header h1{margin:0;font-size:34px}.header p{margin:8px 0 0;color:var(--muted)}.pill{background:white;border:1px solid var(--line);padding:10px 14px;border-radius:10px;font-size:14px}.cards{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:18px;gap:18px;margin-bottom:20px}.card,.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 5px 16px rgba(24,43,77,.04)}.card{padding:22px;display:grid;grid-gap:9px;gap:9px}.card small,.card span{color:var(--muted)}.card strong{font-size:28px}.panel{padding:24px;margin-bottom:20px}.panel-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.panel-title h2{margin:0}.panel-title span{color:var(--muted);font-size:14px}.direction-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:18px;gap:18px}.direction{padding:18px;border:1px solid var(--line);border-radius:14px;display:grid;grid-gap:10px;gap:10px}.direction-head{display:flex;justify-content:space-between}.direction small{color:var(--muted)}.bar{height:8px;background:#edf2f8;overflow:hidden}.bar,.bar i{border-radius:99px}.bar i{height:100%;display:block;background:linear-gradient(90deg,#1574ff,#46a0ff)}.example{display:grid;grid-template-columns:1.1fr 1fr 1fr 1fr auto 1fr;grid-gap:12px;gap:12px;align-items:center}.example>div{background:#f8fafc;border:1px solid var(--line);padding:14px;border-radius:10px}.example .equals{border:0;background:transparent;text-align:center;font-size:20px}.example .result{background:#ebfbf3;border-color:#bdeed6;color:#0d7f51;font-weight:800;font-size:20px}.muted{color:var(--muted)}.form-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:18px;gap:18px}.form-grid label{display:grid;grid-gap:8px;gap:8px;font-weight:600}.form-grid input,.form-grid select{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:10px;background:white;color:var(--text);font-size:15px}.total-box{margin:24px 0;display:flex;justify-content:space-between;align-items:center;background:#ecfbf4;border:1px solid #c7f0dc;padding:20px;border-radius:14px}.total-box div{display:grid;grid-gap:5px;gap:5px}.total-box small{color:#5d7b6e}.total-box strong{font-size:32px;color:#0d8d5b}.primary{border:0;background:var(--blue);color:white;padding:13px 18px;border-radius:10px;font-weight:700;cursor:pointer}.primary:hover{filter:brightness(.96)}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:12px;border-bottom:1px solid var(--line)}th{font-size:13px;color:var(--muted);font-weight:600}.link-btn{border:0;background:transparent;color:#d33;cursor:pointer}@media(max-width:1000px){.cards{grid-template-columns:repeat(2,1fr)}.direction-grid,.form-grid{grid-template-columns:1fr 1fr}.example{grid-template-columns:1fr 1fr 1fr}.sidebar{position:static;width:auto}.page{margin-left:0}}@media(max-width:650px){.page{padding:20px}.cards,.direction-grid,.form-grid{grid-template-columns:1fr}.header{display:block}.pill{display:inline-block;margin-top:12px}.example{grid-template-columns:1fr}}