/* SkoolZA marketing site. Same course-pack identity as the app (apps/web/DESIGN.md):
   paper and ink, hairline rules, one highlighter. System fonts only, so the site makes no
   third-party requests. */

:root {
  --paper: #ffffff;
  --paper-2: #f6f6f4;
  --ink: #141414;
  --ink-2: #4a4a48;
  --ink-3: #6b6b67;
  --rule: #d6d5d0;
  --rule-strong: #141414;
  --marker: #cfef5b;
  --marker-ink: #141414;
  --pen: #c8321e;
  --pen-soft: #fbe9e5;
  --serif: "Iowan Old Style", "Charter", "Georgia", "Times New Roman", serif;
  --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", "Arial", sans-serif;
  --gutter: clamp(16px, 5vw, 72px);
  --page: 1120px;
  --reading: 68ch;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #050510;
    --paper-2: #0e0f1d;
    --ink: #f1f1ec;
    --ink-2: #bdbdb5;
    --ink-3: #8f8f88;
    --rule: #2a2a3c;
    --rule-strong: #f1f1ec;
    --pen: #ff7a66;
    --pen-soft: #3a1410;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.55 var(--serif);
  font-variant-numeric: tabular-nums;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: var(--gutter);
  top: 8px;
  background: var(--paper);
  padding: 8px 12px;
  z-index: 10;
}

.wrap {
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ----- header and footer ----- */

.masthead {
  border-bottom: 1px solid var(--rule-strong);
}

.masthead .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  flex-wrap: wrap;
}

.wordmark {
  font: 600 1.5rem/1 var(--serif);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark span {
  background: var(--marker);
  color: var(--marker-ink);
  padding: 0 3px;
  margin-left: 1px;
}

.masthead nav {
  display: flex;
  gap: 4px 20px;
  flex-wrap: wrap;
  font: 600 0.9375rem/1 var(--sans);
}

.masthead nav a {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  text-decoration: none;
}

.masthead nav a:hover,
.masthead nav a[aria-current="page"] {
  text-decoration: underline;
}

.colophon {
  border-top: 1px solid var(--rule-strong);
  margin-top: 96px;
  padding: 32px 0 48px;
  font: 400 0.875rem/1.5 var(--sans);
  color: var(--ink-2);
}

.colophon .wrap {
  display: grid;
  gap: 24px;
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .colophon .wrap {
    grid-template-columns: 2fr 1fr;
  }
}

.colophon p {
  margin: 0 0 6px;
}

.colophon ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.colophon li a {
  display: inline-block;
  padding: 6px 0;
}

/* ----- type ----- */

.eyebrow {
  font: 600 0.75rem/1.2 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 16px;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0;
}

h1 {
  font-size: clamp(2.3rem, 5.5vw, 3.6rem);
  line-height: 1.05;
  max-width: 18ch;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.15;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.25;
}

mark {
  background: var(--marker);
  color: var(--marker-ink);
  padding: 0 2px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.deck {
  font-size: clamp(1.15rem, 2vw, 1.3rem);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 56ch;
  margin: 20px 0 0;
}

.meta {
  font: 400 0.875rem/1.5 var(--sans);
  color: var(--ink-3);
}

/* ----- buttons ----- */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 20px;
  background: var(--ink);
  color: var(--paper);
  font: 600 0.9375rem/1 var(--sans);
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid var(--ink);
}

.button:hover {
  background: var(--ink-2);
  border-color: var(--ink-2);
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--ink);
}

.button.secondary:hover {
  background: var(--paper-2);
}

/* ----- home ----- */

.hero {
  padding: clamp(48px, 9vw, 112px) 0 clamp(40px, 7vw, 88px);
  border-bottom: 1px solid var(--rule);
}

.notice {
  display: inline-block;
  margin-top: 20px;
  padding: 6px 10px;
  border: 1px solid var(--rule);
  font: 400 0.875rem/1.4 var(--sans);
  color: var(--ink-2);
}

.section {
  padding: clamp(48px, 7vw, 88px) 0 0;
}

.section-head {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
  max-width: 60ch;
}

.section-head p {
  margin: 0;
  color: var(--ink-2);
}

.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--rule-strong);
  counter-reset: feature;
}

@media (min-width: 720px) {
  .features {
    grid-template-columns: 1fr 1fr;
    column-gap: 48px;
  }
}

.features li {
  counter-increment: feature;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 4px 0;
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--rule);
}

.features li::before {
  content: counter(feature, decimal-leading-zero);
  grid-row: span 2;
  font: 600 0.875rem/1.7 var(--sans);
  color: var(--ink-3);
}

.features p {
  margin: 0;
  color: var(--ink-2);
}

.honest {
  border-left: 3px solid var(--ink);
  padding: 4px 0 4px 20px;
  max-width: var(--reading);
}

.honest p {
  margin: 0 0 12px;
}

.price-sheet {
  border: 1px solid var(--rule-strong);
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 820px) {
  .price-sheet {
    grid-template-columns: 5fr 7fr;
  }
}

.price-sheet > div {
  padding: clamp(24px, 4vw, 40px);
}

.price-sheet > div + div {
  border-top: 1px solid var(--rule);
}

@media (min-width: 820px) {
  .price-sheet > div + div {
    border-top: 0;
    border-left: 1px solid var(--rule);
  }
}

.amount {
  font: 600 clamp(3rem, 7vw, 4.25rem)/1 var(--serif);
  letter-spacing: -0.03em;
  margin: 12px 0 4px;
}

.amount small {
  font: 400 1.1rem/1 var(--sans);
  letter-spacing: 0;
  color: var(--ink-2);
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.checklist li {
  padding: 12px 0 12px 32px;
  border-bottom: 1px solid var(--rule);
  position: relative;
}

.checklist li:last-child {
  border-bottom: 0;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 19px;
  width: 14px;
  height: 7px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg);
}

/* ----- text pages ----- */

.page {
  padding: clamp(40px, 7vw, 80px) 0 0;
}

.prose {
  max-width: var(--reading);
}

.prose h1 {
  max-width: none;
  font-size: clamp(2rem, 4.5vw, 2.8rem);
}

.prose h2 {
  font-size: 1.35rem;
  margin: 40px 0 8px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.prose p,
.prose li {
  margin: 0 0 12px;
}

.prose ul,
.prose ol {
  padding-left: 1.3em;
  margin: 0 0 12px;
}

.draft {
  border: 1px solid var(--pen);
  background: var(--pen-soft);
  color: var(--ink);
  padding: 12px 16px;
  margin: 24px 0 8px;
  font: 400 0.9375rem/1.5 var(--sans);
}

.draft strong {
  color: var(--pen);
}

.details {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--rule-strong);
  margin: 24px 0 0;
}

.details div {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

@media (min-width: 600px) {
  .details div {
    grid-template-columns: 220px 1fr;
    gap: 16px;
  }
}

.details dt {
  font: 600 0.8125rem/1.6 var(--sans);
  color: var(--ink-3);
}

.details dd {
  margin: 0;
}