/* AHM Excel Studio — navy working surface with cobalt and brass accents. */
.xl-studio{--xl-ink:#132843;--xl-muted:#5c6b7e;--xl-line:#dfe5ed;--xl-bg:#f6f8fc;--xl-card:#fff;--xl-blue:#2859df;--xl-gold:#d8b86c;max-width:1420px;margin:auto;padding:40px 32px 80px;color:var(--xl-ink);font-size:16px;line-height:1.55}
.xl-studio *{box-sizing:border-box}.xl-studio button,.xl-studio input,.xl-studio select{font:inherit}.xl-studio button{cursor:pointer;transition:background .18s,transform .18s,border-color .18s}.xl-studio button:disabled{cursor:not-allowed;opacity:.45}.xl-studio button:focus-visible,.xl-studio input:focus-visible,.xl-studio select:focus-visible{outline:3px solid #8cafff;outline-offset:3px}.xl-studio h1,.xl-studio h2,.xl-studio h3,.xl-studio p{margin-top:0}.xl-studio h2{font-size:1.6rem;line-height:1.24;letter-spacing:-.04em}.xl-studio h3{font-size:1.1rem;line-height:1.3;letter-spacing:-.02em}.xl-studio p{color:var(--xl-muted)}.xl-overline{font-size:.75rem;letter-spacing:.13em;font-weight:750;margin-bottom:9px;color:var(--xl-blue)!important}.xl-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-bottom:25px}.xl-heading h1{font-size:clamp(2.7rem,5vw,4.2rem);font-weight:800;letter-spacing:-.06em;margin:0 0 5px;line-height:1.06}.xl-heading h1 span{font-weight:400;color:var(--xl-blue)}.xl-heading p:last-child{margin:12px 0 0}.xl-mini-stat{min-width:165px;padding:16px 22px;border-left:1px solid var(--xl-line)}.xl-mini-stat b{display:block;font-size:2rem;line-height:1.2}.xl-mini-stat b span{color:var(--xl-muted);font-size:1rem;font-weight:400}.xl-mini-stat small{font-size:.8rem;color:var(--xl-muted)}.xl-progress{background:#e6edf7;height:4px;border-radius:4px;overflow:hidden;margin-top:13px}.xl-progress i{display:block;background:var(--xl-blue);height:100%;transition:width .5s ease}.xl-tabs{display:flex;border-bottom:1px solid var(--xl-line);gap:25px;margin-bottom:30px;overflow:auto;scrollbar-width:thin}.xl-tabs button{white-space:nowrap;border:0;border-bottom:3px solid transparent;background:none;padding:15px 1px;font-weight:650;color:var(--xl-muted);font-size:.93rem}.xl-tabs button[aria-current=page]{color:var(--xl-blue);border-bottom-color:var(--xl-blue)}#xl-body{outline:none;animation:xl-enter .35s ease}.xl-feature{display:grid;grid-template-columns:1.25fr 1fr;gap:50px;background:#102644;color:#fff;border-radius:20px;padding:36px 40px;position:relative;overflow:hidden;box-shadow:0 16px 45px #13284310}.xl-feature:before{content:'';position:absolute;width:280px;height:280px;right:-140px;top:-160px;border:1px solid #ffffff18;border-radius:50%;box-shadow:0 0 0 40px #ffffff03,0 0 0 80px #ffffff03;pointer-events:none}.xl-feature h2{font-size:2rem;color:#fff;margin:18px 0 12px}.xl-feature p{color:#c1cee0;max-width:510px}.xl-chip{display:inline-block;border:1px solid #adc1e445;border-radius:6px;padding:5px 9px;font-size:.75rem;letter-spacing:.05em;font-weight:650}.xl-feature .xl-chip{color:#e4ca8b;border-color:#d8b86c55}.xl-primary,.xl-secondary{border:1px solid transparent;border-radius:8px;padding:11px 17px;font-weight:650!important;font-size:.9rem!important;line-height:1.4;display:inline-flex;gap:18px;align-items:center;justify-content:center}.xl-primary{background:var(--xl-blue);color:#fff}.xl-primary:hover{background:#1747c7;transform:translateY(-1px)}.xl-feature .xl-primary{background:#e5c67f;color:#102644}.xl-feature .xl-primary:hover{background:#f0d899}.xl-secondary{background:var(--xl-card);border-color:var(--xl-line);color:var(--xl-ink)}.xl-secondary:hover{border-color:var(--xl-blue)}.xl-ledger{border:1px solid #ffffff24;background:#ffffff06;border-radius:12px;padding:20px 24px;transform:rotate(-1deg);align-self:center}.xl-ledger>div{display:flex;justify-content:space-between;gap:18px;font-size:.88rem;padding:10px 0}.xl-ledger span{color:#c1cee0}.xl-ledger b{font-variant-numeric:tabular-nums;font-weight:500}.xl-ledger .xl-ledger-result{border-top:1px solid #ffffff24;margin-top:8px;padding-top:17px;align-items:center}.xl-ledger code{color:#f0d899;font-size:1rem}.xl-ledger small{color:#99aac0;font-size:.75rem}.xl-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:25px;margin:38px 0 23px}.xl-section-heading h2{margin:0}.xl-search input,.xl-syllabus select,.xl-work-toolbar select{padding:11px 14px;border:1px solid var(--xl-line);border-radius:8px;background:var(--xl-card);color:var(--xl-ink);width:100%;min-height:45px}.xl-search{min-width:280px}.xl-course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.xl-course{text-align:left;padding:23px;border:1px solid var(--xl-line);border-radius:13px;background:var(--xl-card);color:var(--xl-ink);min-width:0}.xl-course:hover{transform:translateY(-4px);border-color:#9ab1ea;box-shadow:0 10px 30px #2142760c}.xl-course-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.xl-course-number{font:600 1.05rem monospace;background:#eef3ff;border:1px solid #d8e3ff;border-radius:8px;padding:8px;color:var(--xl-blue)}.xl-course-top small{font-size:.75rem;color:var(--xl-muted)}.xl-course h3{margin-bottom:10px}.xl-course p{font-size:.88rem;min-height:42px;margin-bottom:24px}.xl-course-bottom{display:flex;justify-content:space-between;font-size:.8rem}.xl-course-bottom span:last-child{color:var(--xl-blue);font-size:1.2rem;line-height:1}.xl-bottom-note{margin-top:30px;padding:25px;border-top:1px solid var(--xl-line)}.xl-bottom-note p{margin:6px 0 12px;font-size:.9rem}.xl-text-button{border:0;background:none;padding:5px 0;color:var(--xl-blue);font-size:.88rem!important;font-weight:650!important;text-align:left}.xl-text-button:hover{text-decoration:underline}.xl-practice-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:30px}.xl-syllabus{border-right:1px solid var(--xl-line);padding-right:25px}.xl-syllabus label{font-weight:650;font-size:.85rem;display:block;margin-bottom:8px}.xl-syllabus nav{display:grid;gap:8px;margin-top:25px}.xl-syllabus nav button{border:1px solid transparent;background:transparent;text-align:left;padding:13px 10px;display:flex;gap:13px;border-radius:8px;color:var(--xl-ink);font-size:.87rem}.xl-syllabus nav button>span:first-child{font-family:monospace;color:var(--xl-muted)}.xl-syllabus nav button.active{background:#edf3ff;border-color:#d9e5ff;color:#184aba}.xl-syllabus nav small{display:block;font-size:.75rem;margin-top:7px;color:var(--xl-muted)}.xl-syllabus>p{font-size:.78rem;margin-top:30px;line-height:1.7}.xl-exercise{min-width:0;border:1px solid var(--xl-line);border-radius:16px;padding:30px;background:var(--xl-card)}.xl-exercise-top{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:18px;color:var(--xl-muted);font-size:.78rem}.xl-exercise .xl-chip{background:#edf3ff;color:#234aa5;border-color:#dee7fb;font-size:.72rem}.xl-exercise h2{font-size:1.8rem;margin-bottom:12px}.xl-case-story{font-size:1rem}.xl-target-note{background:#f3f6fc;border-left:3px solid var(--xl-blue);padding:13px 16px;display:flex;align-items:center;gap:18px;margin:23px 0}.xl-target-note span{white-space:nowrap;font-size:.72rem;font-weight:650;color:var(--xl-muted)}.xl-target-note b{display:inline-block;color:#8c5905;background:#ffe5a7;padding:3px 7px;border-radius:4px;margin-left:8px;font-size:.9rem}.xl-target-note p{font-size:.85rem;margin:0}.xl-table-scroll{max-width:100%;overflow:auto;border:1px solid var(--xl-line);border-radius:10px}.xl-table{border-collapse:separate;border-spacing:0;width:100%;font-size:.85rem;font-variant-numeric:tabular-nums;color:var(--xl-ink);background:var(--xl-card)}.xl-table th{background:#eaf0f8;font-weight:500;font-size:.73rem;text-align:center;color:#607087;padding:9px;min-width:38px}.xl-table th:first-child{width:40px}.xl-table td{border-top:1px solid var(--xl-line);border-left:1px solid var(--xl-line);padding:13px 15px;white-space:nowrap;min-width:105px}.xl-table .xl-grid-heading{background:#173455;color:#fff;font-weight:600;font-size:.8rem;white-space:normal}.xl-table .xl-target{background:#fff3d2;color:#946105;box-shadow:inset 0 0 0 2px #e4ba52;font-weight:700}.xl-answer{margin:27px 0 15px}.xl-answer label{display:block;font-size:.83rem;font-weight:700;margin-bottom:10px}.xl-formula-row{display:flex;border:2px solid #aec1ed;border-radius:10px;padding:5px;gap:10px;align-items:center}.xl-formula-row:focus-within{border-color:var(--xl-blue);box-shadow:0 0 0 3px #2859df10}.xl-formula-row>span{font:italic 1.4rem Georgia;color:var(--xl-blue);padding:0 8px}.xl-formula-row input{border:0;outline:0;background:transparent;color:var(--xl-ink);min-width:0;flex:1;font-family:monospace;font-size:1rem;min-height:40px}.xl-help{font-size:.78rem;line-height:1.65;margin:12px 0;color:var(--xl-muted)}.xl-exercise-actions{display:flex;gap:24px;flex-wrap:wrap;border-top:1px solid var(--xl-line);padding-top:16px}.xl-guidance,.xl-feedback{border-radius:10px;padding:20px;margin:17px 0;background:#eff4ff;font-size:.9rem}.xl-guidance code{display:block;overflow-wrap:anywhere;color:var(--xl-blue);margin:14px 0;font-size:1rem}.xl-guidance p,.xl-feedback p{margin:8px 0}.xl-guidance small{font-size:.78rem}.xl-feedback.correct{background:#e9f6f0;border-left:3px solid #268463;color:#176046}.xl-feedback.incorrect{background:#fff4e5;border-left:3px solid #c18b22;color:#79520d}.xl-exercise-nav{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:30px}.xl-exercise-nav>span{font-size:.8rem;color:var(--xl-muted)}.xl-reference-note{border-left:3px solid var(--xl-gold);background:var(--xl-bg);padding:15px 20px;margin-bottom:25px;font-size:.88rem;color:var(--xl-muted)}.xl-formulas{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.xl-formula-card{border:1px solid var(--xl-line);border-radius:12px;padding:20px;min-width:0;background:var(--xl-card)}.xl-formula-card h3{color:var(--xl-blue);font-family:monospace;font-size:1.15rem}.xl-formula-card p{font-size:.85rem;min-height:42px}.xl-formula-card code{display:block;font-size:.8rem;overflow-wrap:anywhere;background:var(--xl-bg);padding:12px;border-radius:6px;margin-bottom:12px}.xl-report-head{display:flex;gap:30px;align-items:center;padding:35px;background:#102644;color:#fff;border-radius:16px;margin-bottom:25px}.xl-report-head h2{color:#fff}.xl-report-head p{color:#c1cee0}.xl-score{min-width:160px;text-align:center;border-right:1px solid #ffffff24;padding-right:25px}.xl-score strong{font-size:3rem;color:#e5c67f;display:block}.xl-score span{font-size:.8rem}.xl-progress-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.xl-progress-list button{border:1px solid var(--xl-line);background:var(--xl-card);padding:17px;border-radius:8px;text-align:left;display:grid;grid-template-columns:1fr auto;color:var(--xl-ink)}.xl-progress-list .xl-progress{grid-column:1/-1}.xl-progress-list strong{font-size:.9rem}.xl-progress-list span{font-size:.8rem;color:var(--xl-muted)}.xl-work-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:22px}.xl-work-heading h2{margin-bottom:6px}.xl-work-heading p{font-size:.85rem;margin:0}.xl-tool-group{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.xl-work-toolbar{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.xl-work-toolbar label{font-size:.8rem;font-weight:650;max-width:340px}.xl-work-toolbar select{margin-top:6px;font-size:.85rem}.xl-workbook{border:1px solid #cad4e1;border-radius:12px;overflow:hidden;background:var(--xl-card)}.xl-sheet-tabs{display:flex;gap:2px;background:var(--xl-bg);overflow:auto;border-bottom:1px solid var(--xl-line);padding:8px 8px 0}.xl-sheet-tabs button{border:1px solid transparent;background:none;white-space:nowrap;font-size:.8rem;color:var(--xl-muted);padding:10px 17px;border-radius:7px 7px 0 0}.xl-sheet-tabs button[aria-pressed=true]{background:var(--xl-card);color:var(--xl-blue);border-color:var(--xl-line);border-bottom-color:var(--xl-card)}.xl-cell-editor{display:flex;gap:12px;padding:10px;align-items:center;border-bottom:1px solid var(--xl-line)}.xl-cell-editor label{min-width:55px;text-align:center;font-family:monospace;font-weight:700;font-size:.9rem}.xl-cell-editor>span{color:var(--xl-blue);font-family:Georgia;font-style:italic}.xl-cell-editor input{min-width:0;flex:1;border:1px solid var(--xl-line);border-radius:5px;padding:8px;font-family:monospace;background:var(--xl-card);color:var(--xl-ink)}.xl-cell-editor button{padding:9px 14px;font-size:.8rem!important}.xl-work-grid{max-height:540px;overflow:auto}.xl-work-grid .xl-table{table-layout:fixed;width:max-content;min-width:100%}.xl-work-grid .xl-table thead{position:sticky;top:0;z-index:2}.xl-work-grid .xl-table th:first-child{position:sticky;left:0;z-index:3}.xl-work-grid .xl-table td{padding:0;width:135px;max-width:135px;height:32px}.xl-work-grid .xl-table td button{display:block;border:0;background:transparent;color:inherit;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;width:100%;max-width:180px;padding:7px 10px;font-size:.8rem;min-height:32px}.xl-work-grid .xl-selected{box-shadow:inset 0 0 0 2px var(--xl-blue);background:#edf3ff}.xl-work-grid .xl-cell-error{color:#a5354f;background:#fff1f4}.xl-grid-bottom{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;font-size:.75rem;gap:15px;border-top:1px solid var(--xl-line);background:var(--xl-bg);color:var(--xl-muted)}.xl-grid-bottom>div{display:flex;gap:10px;flex-wrap:wrap}.xl-grid-bottom button{background:none;border:0;padding:6px;color:var(--xl-blue);font-size:.75rem}.xl-work-options{display:flex;justify-content:space-between;gap:20px;margin-top:20px}.xl-work-options>div{display:flex;gap:20px}.xl-chart{border:1px solid var(--xl-line);border-radius:12px;padding:25px;margin-top:22px}.xl-chart p{font-size:.8rem}.xl-bar{display:grid;grid-template-columns:150px 1fr 100px;align-items:center;gap:20px;margin:14px 0;font-size:.8rem}.xl-bar i{background:linear-gradient(90deg,var(--bar-color) var(--bar),#edf1f8 var(--bar));height:12px;border-radius:3px}.xl-bar b{text-align:right;font-weight:600}.xl-notice{background:#eaf1ff;border:1px solid #c4d7ff;border-radius:8px;padding:14px 18px;color:#194ca3!important;font-size:.9rem}.xl-empty{padding:35px;border:1px dashed var(--xl-line);border-radius:12px}.xl-studio a{color:var(--xl-blue)}
.ahm-brand-mark{width:54px;height:54px;flex:0 0 54px;border-radius:11px;background:#10243e;display:grid;place-items:center;overflow:hidden;border:1px solid #193858}.ahm-brand-mark img{display:block;width:100%;height:100%;object-fit:contain}.ahm-social-icon{width:20px;height:20px;flex-shrink:0;display:inline-block;vertical-align:middle;margin-right:8px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.ahm-social-links{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.ahm-social-links a{display:inline-flex;align-items:center;min-height:44px;padding:10px 14px;border:1px solid #d5dfed;border-radius:8px;font-size:.85rem;text-decoration:none}.p-footer .ahm-social-links{padding-top:16px;border-top:1px solid #ffffff24}.p-footer .ahm-social-links a{border-color:#ffffff30}.ahm-contact-strip{margin:20px 0 28px}.ahm-contact-strip h3{margin-bottom:8px}.ahm-excel-home{padding:30px;background:#102644;color:#fff;border-radius:15px;display:flex;align-items:center;justify-content:space-between;gap:30px;margin:35px 0}.ahm-excel-home h2{color:#fff;margin:0 0 10px}.ahm-excel-home p{color:#cbd6e8;margin:0}.ahm-excel-home a{white-space:nowrap;background:#e5c67f;color:#102644;padding:13px 18px;border-radius:8px;font-weight:700;text-decoration:none}
[data-theme=dark] .xl-studio{--xl-ink:#e2e9f5;--xl-muted:#a1b0c6;--xl-line:#2b3d56;--xl-bg:#112033;--xl-card:#16273d;--xl-blue:#85a8ff}.dark .xl-studio{--xl-ink:#e2e9f5;--xl-muted:#a1b0c6;--xl-line:#2b3d56;--xl-bg:#112033;--xl-card:#16273d;--xl-blue:#85a8ff}[data-theme=dark] .xl-primary{background:#2859df}[data-theme=dark] .xl-table th{background:#1b304a;color:#adbad0}[data-theme=dark] .xl-target-note,[data-theme=dark] .xl-guidance,[data-theme=dark] .xl-syllabus nav button.active,[data-theme=dark] .xl-work-grid .xl-selected{background:#1b3556}[data-theme=dark] .xl-feedback p{color:inherit}[data-theme=dark] .xl-course-number{background:#213b65;border-color:#314d78}
@keyframes xl-enter{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1050px){.xl-studio{padding:30px 22px 75px}.xl-feature{gap:28px;padding:28px}.xl-course-grid,.xl-formulas{grid-template-columns:repeat(2,1fr)}.xl-practice-layout{grid-template-columns:215px minmax(0,1fr);gap:20px}.xl-syllabus{padding-right:15px}.xl-exercise{padding:22px}.xl-formula-row{flex-wrap:wrap}.xl-formula-row button{flex-basis:100%;margin:0}.xl-work-toolbar{align-items:stretch;flex-direction:column}}
@media(max-width:700px){.xl-studio{padding:25px 16px 95px}.xl-heading{gap:10px;align-items:start}.xl-heading h1{font-size:2.7rem}.xl-heading>div>p:last-child{font-size:.88rem}.xl-mini-stat{min-width:95px;padding:4px 0 4px 13px}.xl-mini-stat b{font-size:1.55rem}.xl-mini-stat small{font-size:.7rem}.xl-overline{font-size:.65rem}.xl-tabs{gap:22px;margin-bottom:22px}.xl-tabs button{font-size:.83rem;padding:10px 0}.xl-feature{grid-template-columns:1fr;padding:24px;gap:24px;border-radius:13px}.xl-feature h2{font-size:1.8rem}.xl-feature p{font-size:.88rem}.xl-ledger{transform:none;padding:14px 17px}.xl-section-heading{flex-direction:column;align-items:stretch;margin-top:28px;gap:16px}.xl-section-heading h2{font-size:1.4rem}.xl-search{min-width:0}.xl-course-grid{gap:11px}.xl-course{padding:17px 14px}.xl-course h3{font-size:.96rem}.xl-course p{font-size:.78rem;min-height:57px}.xl-course-top{margin-bottom:15px}.xl-course-number{font-size:.9rem;padding:6px}.xl-course-top small{font-size:.67rem}.xl-course-bottom{font-size:.7rem}.xl-practice-layout{display:block}.xl-syllabus{border:0;padding:0;margin-bottom:20px}.xl-syllabus nav{display:flex;overflow:auto;margin-top:12px;padding-bottom:5px;gap:8px}.xl-syllabus nav button{min-width:190px;border-color:var(--xl-line);font-size:.8rem}.xl-syllabus>p{display:none}.xl-exercise{padding:20px 16px;border-radius:12px}.xl-exercise h2{font-size:1.45rem}.xl-case-story{font-size:.9rem}.xl-exercise-top{align-items:start;font-size:.7rem}.xl-exercise-top .xl-chip{font-size:.65rem}.xl-target-note{display:block;padding:12px}.xl-target-note p{margin-top:7px;font-size:.8rem}.xl-table td{font-size:.78rem;padding:11px 12px}.xl-formula-row input{font-size:16px}.xl-exercise-actions{gap:17px}.xl-text-button{font-size:.79rem!important}.xl-exercise-nav .xl-secondary{font-size:.75rem!important;padding:9px}.xl-formulas{grid-template-columns:1fr}.xl-formula-card p{min-height:0}.xl-report-head{display:block;padding:24px}.xl-score{border:0;text-align:left;padding:0;margin-bottom:22px}.xl-progress-list{grid-template-columns:1fr}.xl-work-heading{align-items:start;flex-direction:column}.xl-work-heading h2{font-size:1.4rem}.xl-work-heading .xl-tool-group{width:100%}.xl-work-heading .xl-primary{flex:1}.xl-work-toolbar .xl-tool-group button{font-size:.75rem!important;padding:9px 11px}.xl-cell-editor{gap:7px;flex-wrap:wrap}.xl-cell-editor label{min-width:40px}.xl-cell-editor input{font-size:16px;width:calc(100% - 85px)}.xl-cell-editor button{margin-left:auto}.xl-grid-bottom{align-items:start;flex-direction:column;gap:5px}.xl-work-options{flex-direction:column}.xl-bar{grid-template-columns:90px 1fr 70px;gap:10px;font-size:.7rem}.ahm-social-links a{font-size:.78rem}.ahm-excel-home{flex-direction:column;align-items:start;padding:25px}.ahm-excel-home a{white-space:normal}.ahm-brand-mark{width:45px;height:45px;flex-basis:45px}}
@media(prefers-reduced-motion:reduce){.xl-studio *{animation:none!important;transition:none!important}.xl-course:hover{transform:none}}
@media print{body:has(.xl-workbook) header,body:has(.xl-workbook) footer,body:has(.xl-workbook) .g9-launch,body:has(.xl-workbook) .p-wa,body:has(.xl-workbook) .v-backtop,.xl-heading,.xl-tabs,.xl-work-toolbar,.xl-tool-group,.xl-cell-editor,.xl-grid-bottom,.xl-work-options,.xl-help,.xl-notice,.xl-sheet-tabs #xl-add-sheet{display:none!important}.xl-studio{padding:0;max-width:none;font-size:10pt}.xl-work-grid{max-height:none;overflow:visible}.xl-work-grid .xl-table{width:100%;table-layout:auto}.xl-table td{min-width:0!important;max-width:none!important}.xl-table td button{max-width:none!important;white-space:normal!important;color:#000!important}.xl-workbook{border:0}.xl-work-grid thead{position:static!important}.xl-table tr{break-inside:avoid}body:has(.xl-workbook){background:#fff;color:#000}}