/* The Prumathe home page shares the courses' palette and type: paper, ink, green and orange, a
   serif for display text, a sans for reading and a mono for labels. Light and dark follow
   html[data-theme], set by assets/theme.js before this file loads. */
@font-face {
  font-family: SiteFallback;
  src: local('Segoe UI');
}
* {
  box-sizing: border-box;
}
:root {
  color-scheme: light;
  font-size: 16px;
  --paper: #f6f5ed;
  --white: #fffef8;
  --ink: #183c35;
  --muted: #64756a;
  --line: #d5dcd0;
  --green: #21664e;
  --green-dark: #174c3b;
  --mint: #d9ecd9;
  --mint-border: #afc5ad;
  --orange: #b75d30;
  --on-green: #ffffff;
  --soft: #edf0e6;
  --hover: #e9eee2;
  --focus: #bb6a30;
  --grid-dot: #cbd4c055;
  --shadow: #122f2722;
  --mono: 'Cascadia Code', Consolas, monospace;
  --sans: SiteFallback, Inter, system-ui, sans-serif;
  --serif: Georgia, 'Times New Roman', serif;
}
html[data-theme='dark'] {
  color-scheme: dark;
  --paper: #0f1f1c;
  --white: #172b27;
  --ink: #e4ede7;
  --muted: #9bb0a6;
  --line: #2d463f;
  --green: #5ec79c;
  --green-dark: #7fd6b2;
  --mint: #1d4337;
  --mint-border: #2f6b55;
  --orange: #f09a66;
  --on-green: #0b1f1a;
  --soft: #1c342e;
  --hover: #1c342e;
  --focus: #f0a060;
  --grid-dot: #ffffff12;
  --shadow: #00000055;
}
html,
body {
  margin: 0;
}
body {
  font: 1rem/1.6 var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--green);
}
button {
  font: inherit;
}
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--green);
  color: var(--on-green);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  z-index: 10;
}
.skip-link:focus {
  left: 0.5rem;
}
.page {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.eyebrow {
  display: block;
  font: 0.72rem/1.4 var(--mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
}

/* Header */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink);
  text-decoration: none;
  min-width: 0;
}
.brand svg {
  width: 18px;
  height: 36px;
  flex: none;
}
.brand span {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  min-width: 0;
}
.brand strong {
  font: 600 1.15rem/1.2 var(--sans);
  letter-spacing: 0.3px;
}
.brand small {
  font: 0.62rem/1.4 var(--mono);
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: none;
}
.switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: var(--white);
}
.switch button {
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 0.45rem 0.8rem;
  font: 0.78rem var(--mono);
  cursor: pointer;
}
.switch button.on {
  background: var(--ink);
  color: var(--paper);
}
html[data-theme='dark'] .switch button.on {
  background: var(--green);
  color: var(--on-green);
}
.ghost {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  padding: 0.45rem 0.8rem;
  font-size: 0.85rem;
  cursor: pointer;
}
.ghost:hover {
  background: var(--hover);
}

/* Hero */
.hero {
  padding: 4.5rem 0 3.5rem;
  max-width: 46rem;
}
.hero h1 {
  font: 400 clamp(2.6rem, 6vw, 4.4rem) / 1.04 var(--serif);
  letter-spacing: -1.5px;
  margin: 0.9rem 0 1.5rem;
}
.hero h1 span {
  display: block;
}
.hero h1 .accent {
  color: var(--green);
  font-style: italic;
}
.lead {
  font-size: 1.12rem;
  color: var(--ink);
  margin: 0 0 1.75rem;
  max-width: 40rem;
}
.facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
}
.facts li {
  font: 0.72rem/1.4 var(--mono);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 0.6rem;
  border-top: 2px solid var(--line);
}

/* Sections */
section {
  padding: 3rem 0;
  border-top: 1px solid var(--line);
}
.section-head {
  max-width: 44rem;
  margin-bottom: 1.75rem;
}
.section-head p {
  margin: 0.6rem 0 0;
  font-size: 1.05rem;
}

/* Course cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.5rem 1.5rem 1.25rem;
  box-shadow: 0 1px 0 var(--shadow);
}
.card .tech {
  font: 0.68rem/1.4 var(--mono);
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--orange);
}
.card h2 {
  font: 400 1.75rem/1.15 var(--serif);
  letter-spacing: -0.5px;
  margin: 0.4rem 0 0.75rem;
}
.card > p {
  margin: 0 0 1rem;
  color: var(--ink);
}
.stats {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.stats li {
  font: 0.72rem/1.4 var(--mono);
  letter-spacing: 0.5px;
  background: var(--mint);
  border: 1px solid var(--mint-border);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
}
.needs {
  margin: 0 0 1.25rem;
  font-size: 0.88rem;
  color: var(--muted);
  flex: 1;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
}
.btn {
  display: inline-block;
  padding: 0.6rem 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
}
.btn:hover {
  background: var(--hover);
}
.btn.primary {
  background: var(--green);
  border-color: var(--green);
  color: var(--on-green);
}
.btn.primary:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
}
.link {
  font-size: 0.88rem;
  color: var(--green);
}

/* Method grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem 2rem;
}
.grid article {
  border-top: 2px solid var(--line);
  padding-top: 1rem;
}
.num {
  font: 0.72rem/1.4 var(--mono);
  letter-spacing: 1.5px;
  color: var(--green);
}
.grid h3 {
  font: 400 1.3rem/1.2 var(--serif);
  margin: 0.4rem 0 0.5rem;
}
.grid p {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
}

/* Lesson anatomy */
.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
}
.steps li {
  counter-increment: step;
  background: var(--soft);
  border-radius: 10px;
  padding: 1.1rem 1.1rem 1.1rem 1.1rem;
  font-size: 0.95rem;
  position: relative;
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font: 0.72rem/1.4 var(--mono);
  letter-spacing: 1.5px;
  color: var(--green);
  margin-bottom: 0.5rem;
}
.note {
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Name */
.name-body {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  max-width: 48rem;
}
.name-body svg {
  width: 34px;
  height: 72px;
  flex: none;
  margin-top: 0.2rem;
}
.name-body p {
  margin: 0;
  font: 400 1.25rem/1.5 var(--serif);
}

/* Footer */
.bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}
.bottom a {
  color: var(--green);
}

/* No JavaScript */
.noscript {
  max-width: 40rem;
  margin: 3rem auto;
  padding: 0 1.5rem;
}

@media (max-width: 900px) {
  .cards,
  .grid {
    grid-template-columns: 1fr;
  }
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 600px) {
  .page {
    padding: 0 1rem;
  }
  .brand small {
    display: none;
  }
  .hero {
    padding: 3rem 0 2.5rem;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .name-body {
    flex-direction: column;
    gap: 1rem;
  }
}