/* StatPi site. Tokens are the app's own (StatPi Prototype styles.css, brand book D).
   Paper, graphite ink, one signal orange that marks the answer and the main key. */
@font-face { font-family: "Geist"; src: url("/assets/sp/fonts/geist-normal.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("/assets/sp/fonts/geist-mono-normal.woff2") format("woff2"); font-weight: 400 600; font-display: swap; }
:root {
  --ground: #F3F3F1; --s1: #FFFFFF; --s2: #EAEAE6; --s3: #DADAD5; --edge: #D2D2CC;
  --ink: #0C0D0E; --ink2: #4E5358; --ink3: #6E7378;
  --sig: #E8480E; --sig-ink: #FFFFFF; --sig-edge: #B8360A; --sig-dim: rgba(232,72,14,.14); --sig-text: #C23A08;
  --ok: #1E8A55;
  --sans: "Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.23,1,0.32,1);
  --r: 20px; --tap: 44px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #0C0D0E; --s1: #151719; --s2: #1D2023; --s3: #272B2F; --edge: #050606;
    --ink: #EDEEEF; --ink2: #A4A9AE; --ink3: #858B91;
    --sig: #FF5B1F; --sig-ink: #0C0D0E; --sig-edge: #B33A0E; --sig-dim: rgba(255,91,31,.18); --sig-text: #FF7A45;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ground: #0C0D0E; --s1: #151719; --s2: #1D2023; --s3: #272B2F; --edge: #050606;
  --ink: #EDEEEF; --ink2: #A4A9AE; --ink3: #858B91;
  --sig: #FF5B1F; --sig-ink: #0C0D0E; --sig-edge: #B33A0E; --sig-dim: rgba(255,91,31,.18); --sig-text: #FF7A45;
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ground); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.55; -webkit-font-smoothing: antialiased; font-variant-numeric: tabular-nums; overflow-x: hidden; }
img, svg { max-width: 100%; display: block; }
a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--sig-text); }
:focus-visible { outline: 3px solid var(--sig); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { font-weight: 700; letter-spacing: -0.04em; line-height: 1.04; margin: 0; }
h1 { font-size: clamp(38px, 5.8vw, 76px); max-width: 15ch; }
h2 { font-size: clamp(30px, 4.4vw, 52px); max-width: 18ch; }
h3 { font-size: 21px; letter-spacing: -0.015em; line-height: 1.2; }
p { margin: 0 0 14px; max-width: 62ch; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } body { font-size: 16px; } }
.mono { font-family: var(--mono); }
.k { display: block; font-size: 13px; font-weight: 600; color: var(--ink2); margin-bottom: 14px; }
.lede { font-size: clamp(18px, 2vw, 21px); color: var(--ink2); max-width: 52ch; margin-top: 22px; }
.muted { color: var(--ink2); }
.small { font-size: 14px; color: var(--ink2); }

/* Top bar */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--ground) 88%, transparent); backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--s3); }
.top .wrap { display: flex; align-items: center; gap: 18px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; letter-spacing: -0.03em; font-size: 20px; }
.brand img { width: 30px; height: 30px; }
.nav { display: flex; gap: 4px 20px; margin-left: auto; align-items: center; font-size: 15px; }
.nav a { text-decoration: none; color: var(--ink2); }
.nav a[aria-current="page"], .nav a:hover { color: var(--ink); }
.nav a.key--go, .nav a.key--go:hover { color: var(--sig-ink); }
@media (max-width: 760px) {
  .top .wrap { flex-wrap: wrap; gap: 6px 14px; padding-top: 10px; padding-bottom: 10px; }
  .nav { margin-left: 0; width: 100%; order: 3; overflow-x: auto; gap: 18px; padding-bottom: 2px; scrollbar-width: none; }
  .nav .key { display: none; }
  .top .key-m { margin-left: auto; }
}
@media (min-width: 761px) { .top .key-m { display: none; } }

/* Keys: every key has its edge (brand rule) */
.key { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: var(--tap); padding: 0 20px; border-radius: 12px; font: 600 16px/1 var(--sans); text-decoration: none; cursor: pointer; border: 0; background: var(--s2); color: var(--ink); box-shadow: 0 3px 0 var(--edge); transition: transform .12s var(--ease), box-shadow .12s var(--ease); }
.key:hover { color: var(--ink); }
.key:active { transform: translateY(3px); box-shadow: 0 0 0 var(--edge); }
.key--go { background: var(--sig); color: var(--sig-ink); box-shadow: 0 3px 0 var(--sig-edge); }
.key--go:hover { color: var(--sig-ink); }
.key--go:active { box-shadow: 0 0 0 var(--sig-edge); }
.key--sm { min-height: 38px; padding: 0 14px; font-size: 14px; border-radius: 10px; }
.key[disabled] { opacity: .6; cursor: default; }
.keys { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Sections */
section { padding: 88px 0; }
section + section { padding-top: 0; }
@media (max-width: 640px) { section { padding: 56px 0; } }
.hero { padding: 72px 0 64px; }
@media (max-width: 640px) { .hero { padding: 40px 0 44px; } }
.grid2 { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .grid2 { grid-template-columns: 1fr; gap: 32px; } }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 36px; }
.panel { background: var(--s1); border-radius: var(--r); padding: 26px; }
.panel h3 { margin-bottom: 10px; }
.panel p:last-child { margin-bottom: 0; }
.head { display: grid; grid-template-columns: 220px 1fr; gap: 32px; align-items: end; margin-bottom: 8px; }
.head .k { margin: 0; font-size: 16px; }
@media (max-width: 860px) { .head { grid-template-columns: 1fr; gap: 10px; } }

/* The live curve */
.curve { background: var(--s1); border-radius: 24px; padding: 22px 22px 18px; position: relative; }
.curve svg { width: 100%; height: auto; overflow: visible; }
.curve .readout { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 16px; font-family: var(--mono); font-size: 14px; color: var(--ink2); margin-top: 12px; }
.curve .readout b { color: var(--ink); font-weight: 600; }
.curve .ans { display: inline-block; background: var(--sig); color: var(--sig-ink); padding: 2px 8px; border-radius: 6px; font-weight: 600; }
.curve .q { font-weight: 700; letter-spacing: -0.02em; font-size: 18px; margin-bottom: 4px; }
.curve .note { font-size: 13px; color: var(--ink2); margin: 10px 0 0; border-left: 2px solid var(--s3); padding-left: 10px; }

/* Worked steps */
.steps { margin: 0; padding: 0; list-style: none; counter-reset: s; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 18px 0; border-top: 1px solid var(--s3); }
.steps li::before { content: counter(s); font: 600 15px/1 var(--mono); width: 32px; height: 32px; border-radius: 9px; background: var(--s2); box-shadow: 0 2px 0 var(--edge); display: grid; place-items: center; }
.steps b { display: block; font-size: 18px; letter-spacing: -0.01em; }
.steps span { color: var(--ink2); }
.work { font-family: var(--mono); font-size: 14.5px; background: var(--s2); border-radius: 12px; padding: 14px 16px; line-height: 1.7; overflow-x: auto; }
.work .hl { background: var(--sig); color: var(--sig-ink); padding: 1px 6px; border-radius: 5px; }
.margin-note { font-size: 14px; color: var(--ink2); border-left: 2px solid var(--sig); padding-left: 10px; margin-top: 10px; }

/* Phones */
.phones { display: flex; gap: 18px; justify-content: center; }
.phones img { width: min(30%, 230px); height: auto; border-radius: 26px; box-shadow: 0 1px 0 var(--edge), 0 20px 40px -24px rgba(12,13,14,.35); }
.phones img:nth-child(2) { transform: translateY(-18px); }

/* Pricing */
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; align-items: stretch; }
@media (max-width: 900px) { .tiers { grid-template-columns: 1fr; } }
.tier { background: var(--s1); border-radius: var(--r); padding: 28px; display: flex; flex-direction: column; }
.tier--main { outline: 2px solid var(--sig); }
.tier h3 { font-size: 24px; }
.price { font: 600 44px/1 var(--mono); letter-spacing: -0.03em; margin: 18px 0 6px; }
.price small { font: 500 15px var(--sans); color: var(--ink2); letter-spacing: 0; }
.tier ul { list-style: none; padding: 0; margin: 18px 0 24px; flex: 1; }
.tier li { padding: 9px 0 9px 26px; border-top: 1px solid var(--s2); position: relative; font-size: 15.5px; }
.tier li::before { content: ""; position: absolute; left: 2px; top: 16px; width: 10px; height: 10px; border-radius: 3px; background: var(--ink); }
.tier--main li::before { background: var(--sig); }
.draft { display: inline-flex; align-items: center; gap: 6px; font: 600 12px/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--sig-text); background: var(--sig-dim); padding: 6px 9px; border-radius: 7px; }
.draftbar { background: var(--ink); color: var(--ground); font-size: 14px; }
.draftbar .wrap { padding-top: 9px; padding-bottom: 9px; }
.draftbar b { color: var(--sig); }

/* Event card */
.when { display: grid; grid-template-columns: repeat(3, auto); gap: 8px 28px; margin-top: 26px; justify-content: start; }
.when div { font-size: 14px; color: var(--ink2); }
.when b { display: block; font: 600 20px/1.2 var(--mono); color: var(--ink); letter-spacing: -0.02em; }
@media (max-width: 520px) { .when { grid-template-columns: 1fr 1fr; } }

/* Professor */
.prof { display: grid; grid-template-columns: 280px 1fr; gap: 40px; align-items: start; }
@media (max-width: 800px) { .prof { grid-template-columns: 1fr; gap: 24px; } }
.headshot { aspect-ratio: 4 / 5; border-radius: 22px; background: repeating-linear-gradient(45deg, var(--s2) 0 8px, var(--s1) 8px 16px); display: grid; place-items: center; text-align: center; color: var(--ink3); font: 500 13px/1.4 var(--mono); padding: 20px; overflow: hidden; max-width: 320px; }
.headshot img { width: 100%; height: 100%; object-fit: cover; }
.creds { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 24px 0 8px; }
.creds div { background: var(--s2); border-radius: 14px; padding: 14px 16px; font-size: 14.5px; color: var(--ink2); }
.creds b { display: block; color: var(--ink); font-size: 16px; letter-spacing: -0.01em; }

/* Form */
.form { background: var(--s1); border-radius: 24px; padding: 30px; }
@media (max-width: 640px) { .form { padding: 22px 18px; } }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form .row { grid-template-columns: 1fr; } }
.field { margin-bottom: 16px; }
.field label, .field legend { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.field label .opt { font-weight: 400; color: var(--ink2); }
input[type=text], input[type=email], textarea { width: 100%; font: 400 16px/1.4 var(--sans); color: var(--ink); background: var(--ground); border: 1px solid var(--s3); border-radius: 12px; padding: 12px 14px; min-height: var(--tap); }
textarea { resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--sig); outline-offset: 0; border-color: transparent; }
fieldset { border: 0; padding: 0; margin: 0 0 16px; }
.choices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
@media (max-width: 600px) { .choices { grid-template-columns: 1fr; } }
.choice { position: relative; }
.choice input { position: absolute; opacity: 0; inset: 0; }
.choice span { display: flex; align-items: center; min-height: var(--tap); padding: 10px 14px; border-radius: 12px; background: var(--s2); box-shadow: 0 3px 0 var(--edge); font-size: 15px; cursor: pointer; transition: transform .12s var(--ease); }
.choice input:checked + span { background: var(--ink); color: var(--ground); box-shadow: 0 3px 0 #000; }
.choice input:focus-visible + span { outline: 3px solid var(--sig); outline-offset: 2px; }
.hp { position: absolute; left: -5000px; width: 1px; height: 1px; overflow: hidden; }
.done { display: none; }
.done.on { display: block; }
.door { font: 500 12px var(--mono); color: var(--ink3); margin-top: 12px; }

/* FAQ */
details { border-top: 1px solid var(--s3); padding: 16px 0; }
details summary { cursor: pointer; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
details summary::after { content: "+"; font-family: var(--mono); color: var(--ink2); }
details[open] summary::after { content: "\2212"; }
details p { margin: 10px 0 0; color: var(--ink2); }

/* Footer */
footer.foot { padding: 56px 0 64px; border-top: 1px solid var(--s3); margin-top: 40px; font-size: 14px; color: var(--ink2); }
footer.foot .wrap { display: flex; flex-wrap: wrap; gap: 18px 40px; justify-content: space-between; align-items: flex-start; }
footer.foot nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
footer.foot a { color: var(--ink2); text-decoration: none; }
footer.foot a:hover { color: var(--ink); }
.network { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; }
.network img { width: 26px; height: 26px; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }
/* seo: h2 in cards */
.panel h2,.tier h2{font-size:21px;letter-spacing:-0.015em;line-height:1.2;max-width:none}
.panel h2{margin-bottom:10px}
.tier h2{font-size:24px}