/* Scoped styles: no global body/h1/theme changes. */
.icv11-root{--ic11-navy:#09284e;--ic11-blue:#0967c6;--ic11-line:#d4e3f0;--ic11-muted:#506987;--ic11-soft:#f4f9ff;color:var(--ic11-navy);font-family:system-ui,-apple-system,"Segoe UI",Arial,sans-serif;box-sizing:border-box;max-width:1540px;margin:0 auto 30px}
.icv11-root *{box-sizing:border-box}.icv11-root img{max-width:100%;height:auto}.icv11-root a{color:#075fc2;text-decoration:none}.icv11-root a:hover{text-decoration:underline}.icv11-root button,.icv11-root select,.icv11-root input{font:inherit}.icv11-root button:focus-visible,.icv11-root a:focus-visible,.icv11-root input:focus-visible,.icv11-root select:focus-visible{outline:3px solid #eaa827;outline-offset:3px}.icv11-root h1,.icv11-root h2,.icv11-root h3{color:#072b55;line-height:1.22;letter-spacing:-.02em}.icv11-root h1{font-size:clamp(2.1rem,4vw,3.5rem);margin:8px 0 12px;font-family:Georgia,"Times New Roman",serif}.icv11-root h2{font-size:1.42rem;margin:0 0 12px;font-family:Georgia,"Times New Roman",serif}.icv11-root h3{font-size:1.08rem;margin:0 0 9px}.icv11-root p{line-height:1.64;margin:0 0 14px}.icv11-breadcrumb{display:flex;gap:10px;flex-wrap:wrap;color:#546986;font-size:.87rem;margin:10px 0 17px}.icv11-hero{border:1px solid var(--ic11-line);border-radius:18px;min-height:255px;position:relative;overflow:hidden;background:#eaf6ff;margin-bottom:24px;display:flex;align-items:center}.icv11-hero-image{position:absolute;width:100%;height:100%!important;object-fit:cover;object-position:center;inset:0;z-index:0}.icv11-hero-copy{position:relative;z-index:1;padding:30px 35px;max-width:69%;background:linear-gradient(90deg,rgba(250,253,255,.94),rgba(250,253,255,.83) 72%,transparent)}.icv11-hero-copy p{font-size:1.1rem;max-width:640px}.icv11-eyebrow{font-size:.77rem;color:#075fc2;font-weight:800;letter-spacing:.11em}.icv11-hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:17px}.icv11-hero-tags span{padding:7px 10px;border:1px solid #bcd9ee;background:#ffffffdc;border-radius:18px;font-size:.78rem;font-weight:700}.icv11-layout{display:grid;grid-template-columns:minmax(160px,207px) minmax(0,1fr) minmax(210px,267px);gap:17px;align-items:start}.icv11-panel{padding:18px 14px;border-radius:13px;border:1px solid var(--ic11-line);background:linear-gradient(155deg,#fff,#f7fbff);margin-bottom:14px;box-shadow:0 3px 13px #09284e09}.icv11-panel h2{font-size:1.08rem}.icv11-panel h3{margin:13px 0 8px}.icv11-left .icv11-panel{position:sticky;top:20px}.icv11-left a{display:flex;gap:9px;padding:10px 6px;border-radius:9px;font-size:.84rem;line-height:1.3;align-items:baseline}.icv11-left a:hover{background:#e4f3ff}.icv11-left a span{color:#1682c3;font-weight:900}.icv11-left hr{border:none;border-top:1px solid var(--ic11-line)}.icv11-main{min-width:0}.icv11-intro{padding:7px 3px 13px}.icv11-tag{font-size:.77rem;font-weight:800;color:#087ab4;background:#eaf5fe;padding:5px 9px;border-radius:5px}.icv11-intro h2{font-size:1.8rem;margin-top:14px}.icv11-figure{margin:6px 0 17px;border:1px solid var(--ic11-line);background:#f7fbff;border-radius:13px;overflow:hidden}.icv11-figure img{width:100%;display:block}.icv11-figure figcaption{text-align:center;color:var(--ic11-muted);font-size:.75rem;padding:6px}.icv11-key{border-left:5px solid #1583cc;background:#e9f5ff;padding:14px 18px;border-radius:9px;margin-bottom:19px}.icv11-key strong{color:#0756a3}.icv11-key p{margin:4px 0 0;font-weight:700;overflow-wrap:anywhere}.icv11-block{display:grid;grid-template-columns:46px 1fr;gap:14px;margin:14px 0;padding:17px 15px;border:1px solid #dce8f1;border-radius:12px;background:#fff}.icv11-block h2{font-size:1.3rem}.icv11-block p{margin:0}.icv11-section-no{display:grid;place-items:center;border-radius:50%;background:#0d70c9;color:white;width:39px;height:39px;font-weight:800}.icv11-worked{border:1px solid #c6dff2;border-radius:12px;overflow:hidden;margin:19px 0;background:#fff}.icv11-worked-top{background:#eaf5ff;padding:17px 20px}.icv11-worked-top span{font-size:.76rem;color:#0860ab;font-weight:800;letter-spacing:.1em}.icv11-worked-top h2{margin-top:5px}.icv11-worked-inner{padding:18px 20px}.icv11-answer{background:#e7f6eb;color:#146536;padding:14px;border-radius:9px}.icv11-caution{border-color:#ffdbb6;background:#fff9f2}.icv11-caution .icv11-section-no{background:#c66c19}.icv11-practice-section,.icv11-after{padding:18px 21px;border-radius:12px;border:1px solid var(--ic11-line);background:#f7fbff;margin:16px auto}.icv11-progress{display:flex;gap:12px;align-items:center;font-size:.8rem;color:var(--ic11-muted)}.icv11-donut{flex-shrink:0;display:grid;place-items:center;border:8px solid #d6e8f6;width:84px;height:84px;border-radius:50%;font-size:1rem;color:#07305c;font-weight:800}.icv11-progress-btn,.icv11-check-btn,.icv11-practice button,.icv11-calc button{background:#0b63be;color:#fff;border:0;border-radius:8px;padding:11px 16px;cursor:pointer;font-weight:750}.icv11-progress-btn{margin-top:12px;width:100%}.icv11-check{border:0;margin:0;padding:0}.icv11-check label{display:flex;align-items:start;gap:8px;margin:7px 0;font-size:.86rem;cursor:pointer}.icv11-check-btn{display:block;margin-top:12px;width:100%}.icv11-check-result{font-size:.83rem;margin-top:8px}.icv11-download{display:block;padding:10px;border-bottom:1px solid #e0ebf4;font-weight:700;font-size:.83rem}.icv11-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.icv11-action{display:inline-block;border-radius:7px;background:#0b67c0;color:white!important;padding:12px 16px;font-weight:750}.icv11-hub-section{padding:12px 5px 32px}.icv11-section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:0 0 20px}.icv11-section-head h2{font-size:1.8rem;margin-top:10px}.icv11-filter{min-width:245px;padding:12px 14px;border:1px solid #b9d2e7;border-radius:8px}.icv11-card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.icv11-topic-card{background:#fff;border:1px solid #d8e6f0;border-radius:12px;overflow:hidden;box-shadow:0 3px 12px #16466b09;display:flex;flex-direction:column}.icv11-topic-card:hover{box-shadow:0 7px 23px #12497720;transform:translateY(-2px);text-decoration:none}.icv11-topic-card img{aspect-ratio:800/440;width:100%;object-fit:cover;display:block}.icv11-topic-card div{padding:14px 15px}.icv11-topic-card span,.icv11-worksheet span{font-size:.73rem;color:#087ab4;text-transform:uppercase;letter-spacing:.05em;font-weight:850}.icv11-topic-card h3{margin-top:8px}.icv11-topic-card p{font-size:.86rem;color:#425c77;line-height:1.5}.icv11-worksheet-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.icv11-worksheet{display:flex;flex-direction:column;justify-content:space-between;padding:20px;border:1px solid #d2e1ef;border-radius:12px;background:#fff}.icv11-worksheet p{font-size:.87rem}.icv11-worksheet a{display:inline-block;background:#eef6fd;margin:4px;padding:8px;border-radius:8px;font-size:.83rem;font-weight:700}.icv11-practice,.icv11-calc,.icv11-formulas{border:1px solid #bed9ef;border-radius:15px;background:linear-gradient(150deg,#fff,#f5faff);padding:20px 24px;margin:24px auto}.icv11-practice h2{margin:4px 0 13px}.icv11-practice .ic11-controls{display:flex;flex-wrap:wrap;gap:12px;align-items:end}.ic11-controls label,.icv11-calc label{display:flex;flex-direction:column;gap:5px;font-size:.87rem;font-weight:700}.ic11-controls select,.icv11-calc input,.icv11-calc select{border-radius:7px;border:1px solid #bad0e3;padding:10px;background:#fff;min-width:135px;color:var(--ic11-navy)}.ic11-question{padding:20px;margin-top:19px;background:#fff;border:1px solid #d3e4f1;border-radius:12px}.ic11-question h3{font-size:1.15rem}.ic11-choices{border:0;margin:0;padding:0}.ic11-choices label{display:block;cursor:pointer;padding:11px 12px;border:1px solid #dce8f0;border-radius:9px;margin:7px 0}.ic11-choices label:has(input:checked){border-color:#0b73cf;background:#eef7ff}.ic11-response{margin-top:12px;padding:12px;background:#e8f8ef;border-radius:9px;min-height:30px}.ic11-exam-result{padding:18px;border-radius:10px;background:#e8f5ff;margin-top:14px}.ic11-hidden{display:none!important}.icv11-calc form{display:flex;gap:15px;flex-wrap:wrap;align-items:end}.icv11-calc output{display:block;background:#e5f5ed;padding:15px;border-radius:10px;margin-top:16px;min-height:54px}.icv11-formula-table{width:100%;border-collapse:collapse}.icv11-formula-table td,.icv11-formula-table th{padding:10px;border-bottom:1px solid #d7e6f2;text-align:left}.icv11-formula-table td:first-child{font-weight:700}
@media(max-width:1080px){.icv11-layout{grid-template-columns:160px minmax(0,1fr)}.icv11-right{grid-column:2;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.icv11-card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:720px){.icv11-root{margin:0 auto 19px}.icv11-hero{min-height:330px}.icv11-hero-image{opacity:.62;object-position:75% center}.icv11-hero-copy{max-width:100%;padding:22px;background:linear-gradient(90deg,rgba(255,255,255,.96),rgba(255,255,255,.78))}.icv11-hero-copy p{font-size:1rem}.icv11-hero-tags span{font-size:.7rem}.icv11-layout{display:block}.icv11-left .icv11-panel{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.icv11-left h2,.icv11-left h3,.icv11-left hr{grid-column:1/-1}.icv11-left a{font-size:.76rem}.icv11-right{display:block}.icv11-card-grid,.icv11-worksheet-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.icv11-section-head{display:block}.icv11-filter{min-width:0;width:100%}.icv11-practice,.icv11-calc{padding:14px}.icv11-hub-section{padding:10px 0 23px}}
@media(max-width:460px){.icv11-card-grid,.icv11-worksheet-grid{grid-template-columns:minmax(0,1fr)}.icv11-hero-copy{padding:18px}.icv11-root h1{font-size:2rem}.icv11-block{grid-template-columns:37px 1fr;gap:10px;padding:12px}.icv11-section-no{width:33px;height:33px}.icv11-left .icv11-panel{grid-template-columns:1fr 1fr}.icv11-left a{padding:8px 4px}.icv11-root .icv11-key{padding:12px}.ic11-controls label{width:100%}.ic11-controls select{width:100%}.icv11-calc form label{width:100%}.icv11-practice button{width:100%}}
@media(prefers-reduced-motion:reduce){.icv11-root *{transition:none!important;scroll-behavior:auto!important}}
@media print{.icv11-left,.icv11-right,.icv11-practice,.icv11-calc{display:none!important}.icv11-layout{display:block}.icv11-hero-image{display:none}.icv11-hero{background:white;min-height:120px}.icv11-main{width:100%}}