/* MyGradePlan public site — student-first rebrand. Token-driven, vibrant violet + mint, full light/dark.
   Every colour comes from a token so dark mode is exact; no raw hex leaks into component rules. */
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/space-grotesk-500.woff2) format("woff2")}
@font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/space-grotesk-700.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/inter-400.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/inter-500.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/inter-600.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/inter-700.woff2) format("woff2")}
:root{
  --canvas:#f7f7ff;--surface:#fff;--surface-2:#eee8ff;--surface-3:#e4ddfb;
  --ink:#202449;--heading:#202449;--body:#39415c;--muted:#4b5571;--faint:#59627e;
  --action:#4338ca;--action-hover:#372fb0;--on-action:#fff;--link:#4931b3;
  --mint:#087568;--mint-bg:#d7f3ee;--mint-ink:#066b5f;
  --line:#dddff0;--line-strong:#c9cdec;--focus:#6336e8;
  --out:#c21f41;--out-bg:#fbe7eb;--hard:#9a4a06;--hard-bg:#fdeecb;--secured:#06795f;--secured-bg:#def5ef;
  --grad:linear-gradient(135deg,#6336e8 0%,#2bd4bf 125%);
  --shadow-sm:0 1px 2px rgba(32,36,73,.06);--shadow:0 4px 20px rgba(32,36,73,.07);--shadow-lg:0 14px 40px rgba(99,54,232,.12);
  --radius:22px;--radius-sm:10px;
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--canvas);font-synthesis:none;-webkit-text-size-adjust:100%;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --canvas:#100d20;--surface:#19142b;--surface-2:#241c3a;--surface-3:#2e2447;
  --ink:#ffffff;--heading:#ffffff;--body:#f2eff8;--muted:#ddd7e8;--faint:#d3cddf;
  --action:#6336e8;--action-hover:#7a52ff;--on-action:#ffffff;--link:#beaaff;
  --mint:#5eead4;--mint-bg:#0f3b34;--mint-ink:#5eead4;
  --line:#403653;--line-strong:#4f4668;--focus:#8b6bff;
  --out:#ff6b83;--out-bg:#391620;--hard:#ffc24b;--hard-bg:#392e12;--secured:#5eead4;--secured-bg:#0f3b34;
  --grad:linear-gradient(135deg,#8b6bff 0%,#5eead4 125%);
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);--shadow:0 4px 20px rgba(0,0,0,.4);--shadow-lg:0 14px 44px rgba(0,0,0,.5);
  color-scheme:dark}}
:root[data-theme="dark"]{
  --canvas:#100d20;--surface:#19142b;--surface-2:#241c3a;--surface-3:#2e2447;
  --ink:#ffffff;--heading:#ffffff;--body:#f2eff8;--muted:#ddd7e8;--faint:#d3cddf;
  --action:#6336e8;--action-hover:#7a52ff;--on-action:#ffffff;--link:#beaaff;
  --mint:#5eead4;--mint-bg:#0f3b34;--mint-ink:#5eead4;
  --line:#403653;--line-strong:#4f4668;--focus:#8b6bff;
  --out:#ff6b83;--out-bg:#391620;--hard:#ffc24b;--hard-bg:#392e12;--secured:#5eead4;--secured-bg:#0f3b34;
  --grad:linear-gradient(135deg,#8b6bff 0%,#5eead4 125%);
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);--shadow:0 4px 20px rgba(0,0,0,.4);--shadow-lg:0 14px 44px rgba(0,0,0,.5);
  color-scheme:dark}

*{box-sizing:border-box}
body{margin:0;background:radial-gradient(ellipse at 100% 0,color-mix(in srgb,var(--link) 12%,transparent),transparent 42%),var(--canvas);line-height:1.5;transition:background .2s,color .2s}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
a,button{transition:background .18s,color .18s,border-color .18s}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:3px}
h1,h2,h3{font-family:"Space Grotesk",Inter,sans-serif;color:var(--heading);margin:0;line-height:1.2;letter-spacing:-.02em}
p{margin:0;color:var(--body)}
img,svg{max-width:100%}
.skip{position:absolute;left:-999px;top:8px;background:var(--heading);color:var(--surface);padding:10px 14px;border-radius:8px;z-index:50}.skip:focus{left:8px}

/* Header */
.site-header{height:72px;background:color-mix(in srgb,var(--canvas) 80%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:36px;padding:0 max(24px,calc((100vw - 1240px)/2));white-space:nowrap;position:sticky;top:0;z-index:20}
.brand{display:flex;gap:11px;align-items:center;font-family:"Space Grotesk",sans-serif;font-size:22px;font-weight:700;letter-spacing:-.03em;color:var(--heading)}
.brandmark{width:34px;height:34px;flex:0 0 auto}
.beta{font-size:14px;font-weight:700;letter-spacing:1px;color:var(--mint-ink);background:var(--mint-bg);padding:5px 7px;border-radius:5px;margin-left:2px}
.site-header nav{display:flex;gap:26px;font-size:14px;font-weight:600;height:100%;align-items:center;color:var(--body)}
.site-header nav a{height:100%;display:flex;align-items:center;position:relative}
.site-header nav a:hover{color:var(--link)}
.site-header nav a[aria-current=page]{color:var(--link)}.site-header nav a[aria-current=page]:after{content:'';height:3px;background:var(--link);border-radius:3px 3px 0 0;position:absolute;bottom:0;left:0;right:0}
.header-note{margin-left:auto;font-size:14px;color:var(--muted)}
.theme-switch{display:inline-flex;align-items:center;gap:2px;border:1px solid var(--line);background:var(--surface-2);border-radius:999px;padding:3px;flex:0 0 auto;margin-left:12px}
.theme-switch .ts{display:inline-flex;align-items:center;gap:6px;border:0;background:transparent;color:var(--muted);border-radius:999px;padding:7px 12px;font-size:14px;font-weight:600;line-height:1}
.theme-switch .ts-i{font-size:15px}
.theme-switch .ts:hover{color:var(--link)}
.theme-switch .ts[aria-pressed="true"]{background:var(--surface);color:var(--heading);box-shadow:var(--shadow-sm)}
.theme-switch .ts:focus-visible{outline:3px solid var(--focus);outline-offset:2px}

main{max-width:1240px;margin:auto;padding:40px 24px 60px}
main.wide{max-width:1240px}
.eyebrow{color:var(--link);font-size:14px;letter-spacing:1.7px;font-weight:700;text-transform:uppercase}

/* Breadcrumbs */
.crumbs{font-size:14px;color:var(--muted);margin:-12px 0 22px}.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}.crumbs li+li:before{content:'›';margin-right:6px;color:var(--faint)}.crumbs a{color:var(--link);text-decoration:underline;text-underline-offset:3px}

/* Buttons */
.button{border:1px solid var(--line-strong);background:var(--surface);border-radius:var(--radius-sm);min-height:44px;padding:11px 18px;color:var(--heading);font-size:14px;font-weight:600;display:inline-flex;gap:8px;align-items:center;justify-content:center;text-decoration:none!important}
.button:hover{background:var(--surface-2);border-color:var(--link)}
.button.primary{background:var(--action);border-color:var(--action);color:var(--on-action);box-shadow:0 4px 14px color-mix(in srgb,var(--action) 32%,transparent)}.button.primary:hover{background:var(--action-hover);border-color:var(--action-hover)}
.button.soft{background:var(--surface-2);color:var(--link);border-color:transparent}.button.soft:hover{background:var(--surface-3)}

/* Hero */
.home-hero{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center;padding:30px 0 48px}
.hero-copy h1{font-size:clamp(36px,4.6vw,58px);letter-spacing:-.03em;line-height:1.08;margin:20px 0;font-weight:700}.hero-copy h1 span{color:var(--link)}
.hero-copy>p{font-size:17px;max-width:580px;line-height:1.75;color:var(--body)}
.status-dot{display:inline-block;width:7px;height:7px;background:var(--mint);border-radius:50%;margin:0 7px 1px 0}
.hero-actions{display:flex;align-items:center;gap:23px;margin-top:26px;flex-wrap:wrap}.hero-actions .button{padding:13px 22px;font-size:14px}
.hero-secondary{font-size:14px;color:var(--link);font-weight:650}
.hero-promises{display:flex;gap:17px;flex-wrap:wrap;font-size:14px;line-height:1.7;color:var(--muted);margin-top:24px}.hero-promises span:before{content:'';display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--mint);margin-right:7px;vertical-align:middle}
.hero-example{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow-lg)}
.example-tag{font-size:14px;letter-spacing:1.1px;font-weight:650;color:var(--muted);text-transform:uppercase}
.hero-example h2{font-size:22px;line-height:1.35;margin:14px 0 20px;letter-spacing:-.02em}
.example-inputs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0}.example-inputs dt{font-size:14px;line-height:1.5;color:var(--muted)}.example-inputs dd{font-size:25px;font-weight:700;margin:5px 0 0;color:var(--heading);font-family:"Space Grotesk",sans-serif}
.example-answer{margin-top:20px;padding:22px;background:var(--surface-2);border-radius:16px;display:flex;flex-direction:column;font-size:14px;line-height:1.5;color:var(--body)}.example-answer strong{font-size:60px;letter-spacing:-.03em;color:var(--link);line-height:1.15;font-family:"Space Grotesk",sans-serif}.example-answer strong span{font-size:30px;color:var(--muted)}
.hero-example>p{font-size:14px;line-height:1.7;color:var(--muted);margin:15px 0}.hero-example>a{font-size:14px;font-weight:650;color:var(--link)}

.tool-shortcuts{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px}.tool-shortcuts a{border:1px solid var(--line);border-radius:9px;background:var(--surface);padding:11px 15px;font-size:14px;line-height:1.5;color:var(--heading);font-weight:600}.tool-shortcuts a:hover{background:var(--surface-2);border-color:var(--link);color:var(--link)}

.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin:0 0 22px}.section-heading h2{font-size:25px;letter-spacing:-.02em;margin-top:9px}.section-heading>span{font-size:14px;color:var(--muted);max-width:240px;line-height:1.6}
.home-calculator{border-top:1px solid var(--line);padding-top:31px;scroll-margin-top:22px}

/* Calculator embed */
.calculator-gate{padding:36px;background:var(--surface-2);border:1px solid var(--line);border-radius:18px;margin:25px 0}.calculator-gate h2{font-size:22px;color:var(--heading);margin:12px 0}.calculator-gate p{margin:12px 0 20px;max-width:680px;font-size:14px;color:var(--muted)}
iframe#calculator{display:block;border:0;width:100%;min-height:300px;background:transparent}
iframe.awaiting-calculator{position:absolute;visibility:hidden;pointer-events:none;height:1px;min-height:1px;max-width:1192px}
.calculator-gate[hidden]{display:none}
.frame-fallback{text-align:center;font-size:14px;color:var(--muted);padding:12px;line-height:1.8}.frame-fallback a{color:var(--link);text-decoration:underline;text-underline-offset:3px}

/* Ads: reserved, labeled, never near controls */
.ad{min-height:96px;border:1px dashed var(--line-strong);background:var(--surface-2);border-radius:13px;margin:26px 0 40px;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:12px}.ad-label{font-size:14px;letter-spacing:2px;text-transform:uppercase}.ad small{font-size:14px}

/* Answer box */
.answer-box{background:var(--surface-2);border:1px solid var(--line);border-radius:18px;padding:22px 26px;margin:0 0 26px;display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 10px;font-size:16px;line-height:1.6;color:var(--body)}.answer-box strong{font-size:40px;letter-spacing:-.03em;color:var(--link);line-height:1.1;font-family:"Space Grotesk",sans-serif}.answer-box p{flex-basis:100%;font-size:14px;color:var(--muted);margin-top:6px}

/* Value grid, how, hub */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin:25px 0 60px}.value-grid article{border-left:2px solid var(--line-strong);padding-left:24px}.feature-index{font-size:14px;letter-spacing:1.5px;color:var(--link);font-weight:700}.value-grid h3{font-size:22px;letter-spacing:-.02em;margin:15px 0 12px}.value-grid p{font-size:15px;line-height:1.8}.value-grid a{display:flex;align-items:center;justify-content:space-between;color:var(--link);font-size:14px;font-weight:650;margin-top:20px;line-height:1.6}
.home-how{border-top:1px solid var(--line);padding:35px 0 40px}.home-how h2,.faq h2{font-size:30px;letter-spacing:-.02em;line-height:1.2;margin:12px 0 25px}.home-how ol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;counter-reset:steps;list-style:none;padding:0;margin:0}.home-how li{counter-increment:steps}.home-how li:before{content:counter(steps);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--surface-3);color:var(--link);font-weight:700;margin-bottom:15px;font-family:"Space Grotesk",sans-serif}.home-how h3{font-size:18px;margin:10px 0;line-height:1.4}.home-how p{font-size:15px;line-height:1.85}
.guide-hub{background:var(--surface-2);border-radius:25px;padding:38px;display:grid;grid-template-columns:1fr 1.3fr;gap:50px}.guide-hub h2{font-size:30px;line-height:1.2;letter-spacing:-.03em;margin:15px 0}.guide-hub p{font-size:14px;color:var(--muted)}.hub-all{display:inline-block;margin-top:18px;font-size:14px;font-weight:650;color:var(--link)}
.guide-links{display:grid;grid-template-columns:1fr 1fr;gap:14px}.guide-links a{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:13px;font-size:14px;line-height:1.6;font-weight:650;color:var(--heading)}.guide-links span{display:block;font-size:14px;color:var(--muted);font-weight:400;margin-top:12px}.guide-links a:hover{border-color:var(--link);box-shadow:var(--shadow)}
.teacher-link{display:flex;justify-content:space-between;gap:20px;padding:25px 5px;font-size:14px;line-height:1.7;color:var(--muted);border-bottom:1px solid var(--line)}.teacher-link a{color:var(--link);font-weight:600}

/* FAQ */
.faq{max-width:860px;margin:48px auto}.faq details{border-bottom:1px solid var(--line);padding:18px 0}.faq summary{cursor:pointer;font-size:17px;font-weight:650;line-height:1.6;color:var(--heading);list-style:none;display:flex;gap:12px}.faq summary::-webkit-details-marker{display:none}.faq summary:before{content:'+';flex:0 0 22px;height:22px;border-radius:6px;background:var(--surface-3);color:var(--link);display:grid;place-items:center;font-size:16px;font-weight:700;margin-top:3px}.faq details[open] summary:before{content:'−'}.faq details>div{margin:13px 0 3px 34px}.faq p{font-size:15px;line-height:1.85}.faq a{text-decoration:underline;text-underline-offset:3px;color:var(--link)}

/* Article / guide pages */
.public-heading{max-width:820px;margin:0 0 30px}.public-heading h1{font-size:38px;letter-spacing:-.03em;color:var(--heading)}.public-heading p{color:var(--muted);font-size:16px;margin-top:10px;line-height:1.7}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.public-guide{max-width:820px;margin:35px auto}.public-guide.article{padding:40px;min-width:0}
.public-guide h1{font-size:38px;color:var(--heading);line-height:1.15;letter-spacing:-.03em}.public-guide h2{font-size:25px;margin:32px 0 14px}.public-guide h3{font-size:19px;margin:27px 0 12px}.public-guide p{font-size:15px;line-height:1.9;margin-bottom:20px}.public-guide .lede{font-size:17px;color:var(--muted);margin:14px 0 24px}
.public-guide a{color:var(--link);text-decoration:underline;text-underline-offset:3px}.public-guide .button{text-decoration:none}.public-guide .button.primary{color:var(--on-action)}
.public-guide ul,.public-guide ol{color:var(--body);font-size:15px;line-height:1.85;padding-left:22px;margin:0 0 20px}.public-guide li{margin-bottom:8px}
.worked-example{border-left:3px solid var(--mint);padding:1px 0 1px 24px;margin:28px 0;background:linear-gradient(90deg,var(--mint-bg),transparent)}
ol.steps{list-style:none;padding:0;counter-reset:s;margin:0 0 20px}ol.steps li{counter-increment:s;position:relative;padding-left:46px;margin-bottom:18px}ol.steps li:before{content:counter(s);position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:50%;background:var(--surface-3);color:var(--link);font-weight:700;display:grid;place-items:center;font-family:"Space Grotesk",sans-serif}ol.steps h3{margin:0 0 6px;font-size:17px}ol.steps p{margin:0}
.glossary{margin:0}.glossary div{padding:14px 0;border-bottom:1px solid var(--line)}.glossary dt{font-weight:700;color:var(--heading);font-size:16px}.glossary dd{margin:6px 0 0;color:var(--body);font-size:15px;line-height:1.75}
code{background:var(--surface-2);padding:2px 6px;border-radius:5px;font-size:.92em;color:var(--heading)}

/* Tables */
.table-wrap{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:12px}
table.data{border-collapse:collapse;width:100%;font-size:14px;color:var(--ink)}table.data caption{text-align:left;padding:12px 14px;font-size:14px;color:var(--muted);caption-side:top}
table.data th,table.data td{padding:10px 12px;border-top:1px solid var(--line);text-align:right;white-space:nowrap}table.data th{background:var(--surface-2);color:var(--heading);font-weight:700;text-align:right}table.data th[scope=row],table.data thead th:first-child{text-align:left;position:sticky;left:0;background:var(--surface-2);z-index:1}table.data td:first-child{text-align:left}
table.data tbody tr:hover td{background:var(--surface-2)}
table.matrix td.out{color:var(--out);background:var(--out-bg)}table.matrix td.hard{color:var(--hard);background:var(--hard-bg)}table.matrix td.secured{color:var(--secured);background:var(--secured-bg)}
table.scale td:first-child,table.chart td{font-weight:600}
.legend{font-size:14px;color:var(--muted);margin:8px 0 18px}.sw{display:inline-block;width:14px;height:14px;border-radius:4px;vertical-align:-2px;border:1px solid var(--line-strong)}.sw.out{background:var(--out-bg)}.sw.hard{background:var(--hard-bg)}.sw.secured{background:var(--secured-bg)}

/* Link cards, hubs, lists */
.link-cards{list-style:none;padding:0;margin:0;display:grid;gap:12px}.link-cards.wide{grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));margin:20px 0}.link-cards a{display:block;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:13px;font-weight:650;color:var(--heading);line-height:1.5}.link-cards a:hover{border-color:var(--link);background:var(--surface-2)}.link-cards span{display:block;font-size:14px;color:var(--muted);font-weight:400;margin-top:6px}
.hub-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin:10px 0 30px}.hub-grid h2{font-size:20px;margin:0 0 14px}
.guide-list{list-style:none;padding:0;margin:0 0 30px;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr));gap:16px}.guide-list a{display:block;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:16px;height:100%}.guide-list a:hover{border-color:var(--link);box-shadow:var(--shadow)}.guide-list h2{font-size:19px;line-height:1.35;margin-bottom:10px}.guide-list p{font-size:14px;line-height:1.7}
.related{max-width:820px;margin:30px auto 0;border-top:1px solid var(--line);padding-top:24px}.related h2{font-size:14px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);margin-bottom:12px}.related ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:12px}.related li{display:flex;flex-direction:column;gap:2px;padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:var(--surface);min-width:200px;flex:1}.related a{font-weight:650;color:var(--link);font-size:14px}.related span{font-size:14px;color:var(--muted)}
.card.empty{padding:40px;max-width:760px;margin:20px auto}.card.empty h1{font-size:30px;margin:10px 0 12px}.card.empty p{margin-bottom:18px}.card.empty .button{margin:6px 0 16px}
.empty-mascot{width:120px;height:120px;display:block;margin:0 0 6px}.card.empty .eyebrow+.empty-mascot,.card.empty .empty-mascot{margin-top:4px}

/* Share-card tool */
.share-tool{max-width:820px;margin:0 auto}
.share-form{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 0 28px}
.share-field label{display:block;font-size:14px;font-weight:650;color:var(--muted);margin-bottom:7px}
.share-ipt{display:flex;align-items:center;background:var(--surface);border:1.5px solid var(--line);border-radius:12px;padding:0 14px;height:54px}
.share-ipt:focus-within{border-color:var(--link);box-shadow:0 0 0 3px color-mix(in srgb,var(--link) 22%,transparent)}
.share-ipt input{border:0;background:transparent;color:var(--ink);font:inherit;font-size:19px;font-weight:600;width:100%;outline:none;font-family:"Space Grotesk",Inter,sans-serif}
.share-ipt span{color:var(--faint);font-weight:600}
.share-preview{display:flex;justify-content:center}
.share-preview canvas{width:100%;max-width:340px;height:auto;border-radius:22px;box-shadow:var(--shadow-lg)}
.share-actions{display:flex;gap:12px;justify-content:center;margin:24px 0 10px;flex-wrap:wrap}
.share-note{text-align:center;color:var(--muted);font-size:14px;max-width:560px;margin:0 auto}
@media(max-width:620px){.share-form{grid-template-columns:1fr;gap:12px}}

/* Footer */
.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:40px max(24px,calc((100vw - 1240px)/2)) 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}.footer-grid>div>a:not(.brand){display:block;font-size:14px;color:var(--body);margin:8px 0}.footer-grid>div>a:not(.brand):hover{color:var(--link)}.footer-grid h2{font-size:14px;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted);margin-bottom:6px}.footer-grid p{font-size:14px;line-height:1.7;max-width:360px;margin-top:10px;color:var(--muted)}
.site-footer small{display:block;margin-top:30px;font-size:14px;line-height:1.7;color:var(--faint)}

/* Responsive */
@media(max-width:1240px){.header-note{display:none}}
@media(max-width:1050px){.home-hero{gap:30px}.guide-hub{gap:30px;padding:30px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:900px){.home-hero{gap:25px}.hero-example{padding:22px}.hero-copy h1{font-size:40px}.example-inputs{gap:8px}.hub-grid{grid-template-columns:1fr;gap:24px}}
@media(max-width:760px){.site-header{height:auto;min-height:64px;padding:14px 16px;gap:10px 12px;flex-wrap:wrap}.site-header nav{order:3;width:100%;height:auto;min-height:30px;gap:14px 18px;font-size:14px;flex-wrap:wrap}.site-header nav a{height:auto;padding:4px 0}.site-header nav a[aria-current=page]:after{bottom:-2px}.header-note{display:none}.header-note+.theme-switch{margin-left:auto}.brand{font-size:21px}main{padding:24px 16px 40px}.crumbs{margin-top:-4px}.home-hero{display:block;padding:15px 0 28px}.hero-copy h1{font-size:38px}.hero-copy>p{font-size:16px;max-width:none}.hero-example{margin-top:28px;padding:22px}.hero-example h2{font-size:21px}.example-inputs dd{font-size:23px}.hero-example>a{display:block}.tool-shortcuts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-bottom:24px}.tool-shortcuts a{font-size:14px;padding:11px;overflow-wrap:anywhere}.section-heading{display:block;margin-bottom:15px}.section-heading h2{font-size:22px;line-height:1.3}.section-heading>span{display:block;max-width:none;margin-top:9px}.home-calculator{padding-top:25px}.ad{margin:25px 0 33px;min-height:78px}.value-grid{grid-template-columns:1fr;gap:25px;margin:25px 0 35px}.value-grid article{padding-left:18px}.value-grid h3{font-size:22px;margin:10px 0}.home-how ol{grid-template-columns:1fr;gap:20px}.home-how h2,.faq h2{font-size:26px}.home-how{padding-top:28px}.guide-hub{display:block;padding:25px 20px;border-radius:19px}.guide-hub h2{font-size:28px}.guide-links{margin-top:25px;gap:10px;grid-template-columns:1fr}.guide-links a{font-size:14px;padding:14px}.teacher-link{flex-direction:column;gap:9px;font-size:14px;padding:23px 5px}.faq{margin:35px 0}.faq summary{font-size:16px}.faq details>div{margin-left:0}.public-heading h1{font-size:30px}.public-guide{padding:0}.public-guide.article{padding:24px 18px}.public-guide h1{font-size:29px}.public-guide h2{font-size:23px}.public-guide p{font-size:14px}.public-guide .lede{font-size:15px}.answer-box{padding:18px;font-size:15px}.answer-box strong{font-size:34px}.calculator-gate{padding:24px}.footer-grid{grid-template-columns:1fr;gap:22px}.site-footer{padding:30px 16px 24px}.card.empty{padding:26px 18px}.related li{min-width:0;flex-basis:100%}table.data th,table.data td{padding:8px 10px;font-size:14px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.ad,iframe,.frame-fallback,.calculator-gate,.related,.faq,.crumbs,.no-print,.answer-box,.theme-switch{display:none!important}:root{--canvas:#fff;--surface:#fff;--ink:#000;--heading:#000;--body:#222}main{padding:0;max-width:none}.card{border:0;box-shadow:none}.public-guide.article{padding:0}.table-wrap{border:0;overflow:visible}table.data{font-size:14px}table.data th,table.data td{padding:4px 8px}}
.table-wrap:focus-visible{outline:3px solid var(--focus);outline-offset:2px}

@media(max-width:1050px){.theme-switch .ts-l{display:none}.theme-switch .ts{padding:7px 10px}}

@media(max-width:1050px){.site-header{flex-wrap:wrap;height:auto;row-gap:12px;padding-top:14px;padding-bottom:14px}.site-header nav{order:3;width:100@media(max-width:1050px){.site-header{flex-wrap:wrap;height:auto;row-gap:12px;padding-top:14px;padding-bottom:14px}.site-header nav{order:3;width:100%}}