:root {
  --paper: #666666;
  --ink: #fff;
  --accent: #f18419;
  --rule: #ffffff26;
  --heading: "Segoe UI", Arial, sans-serif;
  --copy: "Segoe UI", Arial, sans-serif;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.6 var(--copy);
}

a { color: inherit; text-underline-offset: .15em; }
a:hover { color: #ffd19e; }
:focus-visible { outline: 3px solid #ffd19e; outline-offset: 4px; }
p, figure { margin: 0; }
img { display: block; max-inline-size: 100%; block-size: auto; }

.skip {
  position: absolute;
  inset: .5rem auto auto .5rem;
  padding: .5rem 1rem;
  translate: 0 -200%;
  z-index: 5;
  background: #343434;
}
.skip:focus { translate: none; }

.frame {
  max-inline-size: 1200px;
  margin-inline: auto;
  width: calc(100% - 4rem);
  min-block-size: 100vh;
}

.site-header { min-block-size: 88px; display: flex; align-items: center; gap: 32px; border-block-end: 1px solid var(--rule); position: sticky; top: 0; z-index: 10; background: var(--paper); }
.site-brand { color: var(--ink); font: 400 26px/1.2 Consolas, "Courier New", monospace; letter-spacing: -1.4px; text-decoration: none; white-space: nowrap; padding-inline: 0; }

.desktop-nav { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; margin-left: auto; }
.line-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .75rem;
  padding: .5rem .75rem;
  border-inline-start: 1px solid var(--rule);
  font-style: normal;
}
.desktop-nav a { padding: 8px 0; border: 0; font-size: 16px; line-height: 1.5; font-style: normal; text-decoration: none; }
.desktop-nav a[aria-current="page"] {
  text-decoration-thickness: 2px;
}

.arrow {
  flex: none;
  display: inline-block;
  inline-size: .75em;
  block-size: .75em;
  border: solid currentColor;
  border-width: 0 2px 2px 0;
  position: relative;
}
.arrow::before {
  position: absolute;
  content: "";
  inline-size: 133%;
  block-size: 2px;
  background: currentColor;
  inset: 0 auto auto 0;
  transform-origin: left center;
  transform: rotate(45deg);
}

.hero-brand {
  block-size: 240px;
  display: flex;
  align-items: center;
  border-block-end: 1px solid var(--rule);
}
.hero-logo { width: min(86%, 1018px); transform: translateY(17px); }
.hero-intro, .split-copy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: linear-gradient(to right, transparent calc(50% - .5px), var(--rule) 50%, transparent calc(50% + .5px));
  border-block-end: 1px solid var(--rule);
}
.hero-intro {
  min-block-size: 310px;
  align-content: start;
  padding-block-start: 3.25rem;
}
.hero-intro h1 {
  grid-column: 2;
  margin: 0;
  padding: 0 clamp(.75rem, 7.4vw, 6rem) .5rem .75rem;
  border-block-end: 1px solid var(--rule);
  font: 400 20px/1.6 var(--copy);
}

.section-heading {
  margin: 0;
  padding: .625rem .75rem;
  position: relative;
  border-block-end: 1px solid var(--rule);
  font: 400 32px/1.25 var(--heading);
  overflow-wrap: anywhere;
}
.section-heading::before {
  content: "";
  position: absolute;
  inset-inline-start: -1.75rem;
  inset-block-end: 1.1rem;
  inline-size: .85rem;
  block-size: .85rem;
  border-radius: 50%;
  background: var(--accent);
}
.interior main > h1 {
  min-block-size: 244px;
  display: flex;
  align-items: end;
  font-size: clamp(1.8rem, 3.7vw, 3rem);
  background: linear-gradient(to right, transparent calc(50% - .5px), var(--rule) 50%, transparent calc(50% + .5px));
}
.split-copy {
  padding-block: 3.25rem 3.75rem;
  min-block-size: 10rem;
}
.split-copy > * {
  grid-column: 2;
  padding: 0 1.25rem .5rem;
  border-block-end: 1px solid var(--rule);
  font-style: normal;
}
.split-copy a { overflow-wrap: anywhere; }

.feature-grid, .instruction-grid, .service-grid {
  display: grid;
  gap: clamp(.75rem, 2.15vw, 1.625rem);
}
.feature-grid {
  margin: 0;
  padding: 3.75rem 0 0;
  list-style: none;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: minmax(144px, auto);
}
.tile {
  display: grid;
  place-items: center;
  padding: 24px;
  border: 2px solid var(--ink);
  border-radius: 1.25rem;
  text-align: center;
  font-style: normal;
  font-size: 18px;
  line-height: 1.5;
  background: #535353;
  transition: border-color .6s linear;
}
.tile:hover { border-color: var(--accent); }

.back-row {
  display: flex;
  justify-content: end;
  border-block: 1px solid var(--rule);
}
.line-link { min-block-size: 3.5rem; inline-size: min(100%, 17.5rem); }

.instruction-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: minmax(176px, auto);
  padding-block: 3.75rem 0;
}
.instruction-card, .service-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: .5rem;
  min-inline-size: 0;
  padding: 24px;
  border: 1px solid #999999;
  border-radius: 20px;
  background: #535353;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: background-color .6s linear;
}
.instruction-card:hover, .instruction-card:focus-visible,
.service-card:hover, .service-card:focus-visible {
  color: #21180f;
  background: var(--accent);
}
@media (prefers-reduced-motion: reduce) {
  .tile, .instruction-card, .service-card { transition: none; }
}
.card-number {
  grid-column: 1 / -1;
  align-self: start;
  font: 400 40px/1.2 var(--copy);
  letter-spacing: -.055em;
}
.card-title { align-self: end; font-size: 20px; line-height: 1.4; }
.instruction-card .arrow, .service-card .arrow { margin: 0 .15rem .2rem; }
.extra-grid { padding-block: 1.625rem 0; }
.more { margin-block: 1rem; border-block: 1px solid var(--rule); }
.more > summary { margin-inline-start: auto; }
summary { cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
.when-open, .more[open] .when-closed { display: none; }
.more[open] .when-open { display: inline; }
details[open] > summary .arrow { transform: rotate(180deg); }
.feedback { padding-bottom: 2rem; }

.lesson { padding-block-end: 2rem; }
.lesson-intro { min-block-size: 8rem; padding-block: 2.5rem; }
.lesson .section-heading::before { display: none; }
.video-wrap { background: #303030; aspect-ratio: 16 / 9; }
.video-wrap iframe { display: block; width: 100%; height: 100%; border: 0; }
.video-link {
  padding: .45rem .75rem;
  text-align: end;
  border-block-end: 1px solid var(--rule);
  font-size: 1rem;
}
.lesson-notes { border-block-end: 1px solid var(--rule); }
.lesson-notes summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem .75rem;
  font-family: var(--heading);
}
.lesson-notes p { padding: 1rem .75rem 2rem; font-style: normal; }

.article {
  display: grid;
  gap: 1.35rem;
  padding: clamp(1rem, 4vw, 3.25rem) .75rem;
}
.article h2 { margin: 0; font: 400 1.5rem/1.2 var(--heading); }
.article p, .bullet-list { font-style: normal; }
.bullet-list { display: grid; gap: 1rem; margin: 0; padding-inline-start: 1.5rem; overflow-wrap: anywhere; }
.bullet-list li::marker { color: var(--accent); }
.callout { border-inline-start: 3px solid var(--accent); padding-inline-start: .75rem; }
.ribbon img { inline-size: 100%; }
.ribbon .ribbon-mobile { display: none; }

.service-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 2.5rem 0;
}
.service-card { min-block-size: 20rem; grid-template-rows: auto 1fr auto; }
.service-card p { grid-column: 1 / -1; font-style: normal; }
.service-card h3 { margin: 0; font: 400 clamp(1.15rem, 2.2vw, 1.65rem)/1.15 var(--heading); }

.contact h2 { margin: 0 0 1.5rem; font: 400 1.5rem/1.25 var(--heading); }
.contact address { display: grid; gap: .55rem; }

@media (max-width: 980px) {
  .feature-grid { padding-top: 1.5rem; }
  .instruction-grid { padding-top: 1.5rem; grid-auto-rows: minmax(160px, auto); }
}

@media (max-width: 760px) {
  body { font-size: 1rem; }
  .frame { width: calc(100% - 32px); }
  .site-header { min-block-size: 112px; padding-block: 16px; gap: 14px; flex-wrap: wrap; }

.desktop-nav { display: flex; flex: 1 1 100%; margin-left: 0; gap: 8px 20px; }

.hero-brand { block-size: auto; padding: 1.25rem 0 .75rem; }
  .hero-logo { width: 100%; transform: none; }
  .hero-intro, .split-copy { grid-template-columns: 1fr; min-block-size: 0; background: none; }
  .hero-intro { padding: 1.1rem 0 1.55rem; }
  .hero-intro h1 { padding: 0 .625rem; font-size: 20px; }
  .split-copy { padding: 1.5rem 0 1.75rem; }
  .hero-intro h1, .split-copy > * { grid-column: 1; border-block-end: 0; }
  .split-copy > * { padding-inline: .625rem; }
  .section-heading { padding-inline: 1.25rem .625rem; }
  .section-heading::before {
    inline-size: .46rem;
    block-size: .46rem;
    inset-inline-start: .42rem;
    inset-block-end: 1rem;
  }
  .interior main > h1 { min-block-size: 7.5rem; background: none; }
  .feature-grid { display: grid; grid-template-columns: 1fr; grid-auto-rows: auto; padding-top: 24px; gap: 12px; }
  .tile { grid-column: auto; grid-row: auto; min-height: 88px; padding: 16px; font-size: 18px; line-height: 1.5; text-align: left; border-width: 2px; }
  .line-link { min-block-size: 2.75rem; width: min(100%, 13rem); }
  .instruction-grid, .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .instruction-card { grid-column: auto; grid-row: auto; padding: 16px; border-radius: 20px; }
  .instruction-grid { grid-auto-rows: minmax(144px, auto); gap: .625rem; }
  .card-title { font-size: .98rem; }
  .service-card { min-block-size: 13rem; padding: .6rem; border-width: 2px; }
  .service-card p { font-size: 1rem; }
  .ribbon .ribbon-mobile { display: block; }
  .ribbon .ribbon-desktop { display: none; }
  .ribbon { display: grid; gap: .35rem; }
}

@media (max-width: 370px) {
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-block-size: 10rem; }
}




.access-panel { display: grid; grid-template-columns: 1fr 1fr; border-block-end: 1px solid var(--rule); }
.access-panel > div { padding: 1.25rem; }
.access-panel h2 { margin: 0 0 .75rem; font: 400 1.25rem/1.4 var(--heading); }
.access-panel p { font-size: 1.125rem; line-height: 1.5; }
.access-actions { display: grid; gap: .75rem; align-content: center; border-inline-start: 1px solid var(--rule); }
.access-actions .line-link { inline-size: 100%; width: 100%; min-block-size: 3.25rem; border: 1px solid var(--rule); text-decoration: none; }
.account-link { background: #ffffff0c; }
@media (max-width: 760px) {
  .access-panel { grid-template-columns: 1fr; }
  .access-actions { border-inline-start: 0; border-block-start: 1px solid var(--rule); }
}

.section-intro { padding: 20px 12px 0; max-width: 800px; font-size: 16px; line-height: 1.6; }
#instructions { scroll-margin-top: 112px; }
@media (max-width: 760px) { .desktop-nav a { padding: 0; font-size: 14px; } .section-heading { font-size: 28px; } #instructions { scroll-margin-top: 160px; } }

@media (min-width: 761px) and (max-width: 1000px) { .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }