.bank-hero{padding:42px 0 24px;max-width:790px}.bank-hero h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.13;letter-spacing:-.04em;margin:14px 0}.bank-hero h1 span{color:#82e4c7}.bank-hero p,.bank-note{color:#b3c3d5;line-height:1.7}.practice-modes{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 24px}.practice-modes a{display:inline-flex;padding:12px 18px;border:1px solid #3a4b60;border-radius:12px;color:#d8e6f7;text-decoration:none;background:#142539}.practice-modes a[aria-current=page]{background:#24483e;border-color:#82e4c7;color:#a5f6dd}.bank-filter{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:22px;border:1px solid #29394c;border-radius:18px;background:#111f30}.bank-filter label,.bank-card>label,.bank-card>div>label{display:flex;flex-direction:column;gap:8px}.bank-set-label{grid-column:1/-1}.bank-filter input,.bank-filter select,.bank-card textarea,.bank-card select{width:100%;min-width:0;box-sizing:border-box;color:#eef4fc;background:#0b1725;border:1px solid #3a4b60;border-radius:9px;padding:12px;font:inherit}.bank-card textarea{resize:vertical;margin-top:10px}.bank-card select{max-width:280px;margin-bottom:14px}.bank-heading{margin:32px 0 20px}.bank-heading h2{font-size:1.8rem;line-height:1.3;margin:12px 0}.bank-heading>p{color:#adbed1;white-space:pre-line}.bank-card{border:1px solid #33495d;background:#111f30;padding:24px;border-radius:18px;margin:20px 0;min-width:0}.bank-card h3{margin:0 0 18px;font-size:1.15rem;color:#97ecd2}.bank-toolbar,.bank-actions{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0}button{padding:11px 16px;color:#edf7ff;border:1px solid #40566e;background:#20374d;border-radius:10px;font:inherit;cursor:pointer}button:disabled{opacity:.5;cursor:default}.bank-actions button{color:#073629;background:#82e4c7;border-color:#82e4c7;font-weight:700}.bank-review{border-top:1px solid #3a4b60;margin-top:28px;padding-top:20px}.bank-review details,.bank-card details{border:1px solid #33495d;border-radius:12px;padding:16px;margin:16px 0;background:#0d1b2b}.bank-review summary,.bank-card summary{cursor:pointer;color:#9fead3;font-weight:600;line-height:1.6}.bank-review details>.source-content{margin-top:16px}.source-content{background:#fff;color:#162637;border-radius:12px;padding:22px;line-height:1.7;overflow-wrap:anywhere;min-width:0}.source-content p{margin:8px 0;white-space:pre-wrap;tab-size:2}.source-content img{max-width:100%;height:auto;display:block;margin:14px 0}.source-content math{font-size:1.05em;max-width:100%;overflow-x:auto;vertical-align:middle;color:#162637}.source-tab{white-space:normal;display:inline-block;width:1.2em}.source-table-wrap{overflow-x:auto;margin:16px 0}.source-content table{border-collapse:collapse;width:100%;font-size:.93rem;min-width:440px}.source-content th,.source-content td{padding:10px;vertical-align:top;border:1px solid #aab7c4;color:#162637}.source-content th{background:#e8f1f5;text-align:left}.source-content td p,.source-content th p{margin:4px 0}.source-label{display:inline-block;margin:8px}.source-composite svg{width:100%;height:auto;display:block;background:white}.bank-sketch{display:block;width:100%;max-width:800px;background:white;border:1px solid #879aae;border-radius:8px;touch-action:none;margin:12px 0}.mark-result{padding:12px 0 0;line-height:1.6;color:#c8f4e6}#bank-feedback{line-height:1.7;color:#a4efd7}#bank-count{color:#bacadb;line-height:1.6}[hidden]{display:none!important}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,.source-table-wrap:focus-visible{outline:3px solid #82e4c7;outline-offset:3px}@media(max-width:620px){.bank-filter{grid-template-columns:1fr;padding:16px}.bank-card{padding:16px}.source-content{padding:14px}.bank-heading h2{font-size:1.4rem}.bank-hero{padding-top:26px}.practice-modes a{font-size:.85rem;padding:10px 12px}}
.source-content math{overflow:visible;max-width:none}
.source-content svg{max-width:100%;height:auto}