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li+li:before{content:"/";color:var(--line-strong);margin-right:8px}.breadcrumbs a:hover{color:var(--ink);text-underline-offset:4px;text-decoration:underline}.guide-section{grid-template-columns:minmax(0,1fr) minmax(0,1.6fr);align-items:start;gap:24px 72px;display:grid}.prose{color:var(--body);max-width:66ch}.prose>*+*{margin-top:16px}.prose ul,.prose ol{margin-bottom:0;padding-left:22px}.prose li+li{margin-top:10px}.prose strong{color:var(--ink)}.formula{border:1px solid var(--line);background:var(--card);font-family:var(--serif);color:var(--ink);border-radius:10px;padding:16px 20px;font-size:18px}.sample-question{max-width:760px}.sample-question .passage{margin-bottom:20px}.sample-prompt{color:var(--ink);margin-bottom:16px;font-size:17px}.sample-options{gap:10px;margin:0;padding:0;list-style:none;display:grid}.sample-options li{border:1px solid #e3eada;border-radius:8px;align-items:center;gap:12px;min-height:52px;padding:11px 14px 11px 12px;font-size:15px;line-height:1.4;display:flex}details.explanation{border-bottom:1px solid #dce7cd}details.explanation summary{padding:0;font-size:15px}details.explanation p{margin:10px 0 0}.question-stack{gap:16px;display:grid}.calculator{max-width:760px}.calculator-fields{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.calculator-fields label{color:var(--muted);gap:6px;font-size:14px;display:grid}.calculator-fields input{border:1px solid var(--line-strong);background:var(--card);width:100%;min-height:48px;color:var(--ink);border-radius:8px;padding:10px 14px;font-size:18px}.calculator-fields input:focus-visible{outline:2px solid var(--clay-strong);outline-offset:2px}.calculator-fields input[aria-invalid=true]{border-color:var(--wrong-line);background:var(--wrong-50)}.calculator-result{border-top:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px;padding-top:24px;display:grid}.calculator-result>.note{grid-column:1/-1}.calculator-result p:not(.note){color:var(--muted);gap:4px;font-size:14px;display:grid}.calculator-result strong{font-family:var(--serif);color:var(--ink);font-size:36px;font-weight:400;line-height:1.1}.prompt-sets{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.prompt-list{font-family:var(--serif);color:#454d40;gap:14px;margin:16px 0 0;padding:0;font-size:17px;line-height:1.6;list-style:none;display:grid}.prompt-list li{border-left:3px solid var(--lavender-100);padding-left:16px}.more-guides-title{margin-bottom:32px}.guide-cards{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0;padding:0;list-style:none;display:grid}.guide-cards a{background:var(--card);border:1px solid var(--line);border-radius:12px;flex-direction:column;gap:8px;height:100%;padding:24px;transition:border-color .18s;display:flex}.guide-cards a:hover{border-color:#b6c9a1}.guide-cards strong{letter-spacing:-.01em;font-size:17px}.guide-cards span{color:var(--body);font-size:15px}.footer-brand{flex-direction:column;gap:12px;display:flex}.footer-nav h2{letter-spacing:0;color:var(--ink);margin-bottom:8px;font-size:14px}.footer-nav ul{gap:4px;margin:0;padding:0;list-style:none;display:grid}.footer-nav a:hover{color:var(--ink);text-underline-offset:4px;text-decoration:underline}@media (max-width:1120px){.plans{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:960px){.wrap{width:calc(100% - 48px)}.hero-intro,.band-heading,.band.after,.faq,.guide-section,.prompt-sets,.guide-cards{grid-template-columns:1fr}.hero-intro{margin-bottom:40px}.unit-split{grid-template-columns:1fr}.band{padding-block:80px}.pricing .band{padding-block:72px}.syllabus-list{grid-template-rows:repeat(6,auto);column-gap:32px}.plan>.button{margin-top:0}.exam-table thead{display:none}.exam-table tbody tr{grid-template-columns:1fr auto;gap:8px 16px;padding-block:20px;display:grid}.exam-table tbody th,.exam-table td{padding:0}.exam-table tbody th{grid-column:1/-1;margin-bottom:4px}.exam-table td:nth-child(3){grid-area:3/1/auto/-1;max-width:52ch}.site-footer{flex-wrap:wrap}}@media (max-width:640px){html{scroll-padding-top:76px}.plans{grid-template-columns:1fr}.wrap{width:calc(100% - 32px)}.site-header{height:72px}.site-bar[data-scrolled]{margin-bottom:12px}.site-bar[data-scrolled] .site-header{height:60px}.site-header nav{padding-inline:16px}.brand img{width:158px;height:30px}.site-bar[data-scrolled] .brand img{width:132px;height:25px}.hero{padding-top:32px}.hero-side>p:first-child{font-size:17px}.hero-actions{gap:4px}.hero-actions .button{flex:100%}.hero-actions .text-link{margin-inline:auto;padding-block:12px}.hero-intro{margin-bottom:32px}.unit{border-inline:0;border-radius:0;margin-inline:-16px;padding:12px}.unit-bar{grid-template-columns:1fr auto;padding:4px 4px 12px}.unit-progress{grid-column:2}.unit-next{grid-column:2;justify-self:end}.unit-card,.feedback-card{padding:20px}.unit-figure{padding:14px 12px 12px}.question-top{margin-bottom:16px}.question-map button{width:40px;height:40px;font-size:14px}.question-actions .button,.unit-result .button{width:100%}.unit-result{padding:20px}.exam-table tbody tr{grid-template-columns:minmax(0,1fr)}.exam-table td:nth-child(2){white-space:normal}.exam-table td:nth-child(3){grid-row:auto}.exam-table :is(th,td):last-child{text-align:left}.exam-table td:last-child{margin-top:4px}.band{padding-block:64px}.pricing .band{padding-block:56px}.band-heading{margin-bottom:32px}.syllabus-list{grid-template-rows:none;grid-auto-flow:row}.plan{padding:24px}.closing{border-radius:16px;padding:32px 24px}.closing .button{width:100%}.site-footer{flex-direction:column;align-items:flex-start}.footer-nav ul{gap:0}.footer-nav a{padding-block:8px;display:inline-block}.guide-hero{padding-top:24px}.guide-intro{font-size:17px}}@media (max-width:380px){.site-header{gap:8px}.brand img{width:132px;height:25px}.button-small{padding:0 12px}}.preview-section{padding-block:24px 40px}.preview-section h2{margin-bottom:16px;font-size:24px}.preview-table{border-collapse:collapse;text-align:left;width:100%}.preview-table thead th{color:var(--muted);padding:0 16px 10px 0;font-size:13px;font-weight:400}.preview-table tbody tr{border-top:1px solid var(--line-strong)}.preview-table :is(tbody th,td){vertical-align:middle;color:var(--body);padding:14px 16px 14px 0}.preview-table tbody th{color:var(--ink);font-weight:700}.preview-table code,.preview-meta code{color:var(--muted);margin-top:4px;font-size:13px;font-weight:400;display:block}.preview-meta{flex-wrap:wrap;align-items:center;gap:8px;margin:20px 0 12px;display:flex}.preview-meta code{margin:0 0 0 4px}.preview-schedule{margin:16px 0 0;padding:0;list-style:none}.preview-schedule li{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:4px 16px;padding:12px 0;display:flex}.preview-schedule li>span:first-child{min-width:15em;color:var(--muted);font-variant-numeric:tabular-nums}.preview-pager{justify-content:space-between;gap:16px;padding-block:24px 56px;display:flex}@media (max-width:640px){.preview-table thead{display:none}.preview-table tr{grid-template-columns:repeat(3,auto);justify-content:start;gap:4px 16px;padding-block:14px;display:grid}.preview-table :is(tbody th,td){padding:0}.preview-table tbody th{grid-column:1/-1}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}