:root {
  --red: #e63329;
  --red-deep: #b82119;
  --red-soft: #fbeeea;
  --ink: #0f0d0a;
  --ink-soft: #1c1813;
  --paper: #faf6ee;
  --paper-pure: #fffdfa;
  --sand: #efe6d4;
  --sand-deep: #e2d5bd;
  --gray-1: #6e6657;
  --gray-2: #a89e8c;
  --gray-3: #e6decf;
  --gray-bg: #f1eadc;
  --volt: #c7f23c;
  --volt-deep: #86ad12;
  --display: 'Fraunces', Georgia, serif;
  --body: 'Inter Tight', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --max: 1440px;
  --header: 76px;
  --shadow: 0 18px 60px rgba(15, 13, 10, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header) + 24px); }
body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img { max-width: 100%; }
[hidden], .hidden { display: none !important; }
::selection { background: var(--volt); color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--volt-deep);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.mono-label {
  font: 700 10px/1.2 var(--mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--red);
}

.lms-header {
  position: sticky;
  z-index: 100;
  top: 0;
  min-height: var(--header);
  border-bottom: 1px solid var(--gray-3);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: blur(18px);
}
.header-inner {
  min-height: var(--header);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
}
.lms-brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
  font: 700 23px/1 var(--display);
  letter-spacing: -.04em;
}
.lms-brand em, .footer-wordmark em { color: var(--red); font-weight: 400; }
.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--ink);
}
.brand-mark img { width: 22px; height: 22px; object-fit: contain; }
.lms-navigation { display: flex; align-items: center; gap: 30px; }
.lms-navigation a {
  position: relative;
  padding: 12px 0;
  color: var(--gray-1);
  text-decoration: none;
  font: 700 10px/1 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.lms-navigation a::after {
  content: '';
  position: absolute;
  right: 100%;
  bottom: 5px;
  left: 0;
  height: 2px;
  background: var(--red);
  transition: right .2s ease;
}
.lms-navigation a:hover::after, .lms-navigation a[aria-current='page']::after { right: 0; }
.lms-navigation a[aria-current='page'] { color: var(--ink); }
.header-right { justify-self: end; display: flex; align-items: center; gap: 16px; }
.lms-account { display: flex; align-items: center; gap: 12px; }
.account-state {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 11px;
  border: 1px solid var(--gray-3);
  background: var(--paper-pure);
  color: var(--gray-1);
  font: 700 9px/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.account-state i { width: 7px; height: 7px; border-radius: 50%; background: var(--gray-2); }
.account-state.member { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.account-state.member i { background: var(--volt); }
.text-action {
  min-height: 44px;
  padding: 0 4px;
  border: 0;
  background: transparent;
  color: var(--gray-1);
  cursor: pointer;
  font: 700 9px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.mobile-menu-button { display: none; }

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 0 20px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  font: 700 10px/1.2 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-small { min-height: 40px; padding-inline: 16px; }
.button-ink { background: var(--ink); color: var(--paper); }
.button-ink:hover { background: var(--red); border-color: var(--red); }
.button-red { border-color: var(--red); background: var(--red); color: #fff; }
.button-red:hover { background: var(--red-deep); border-color: var(--red-deep); }
.button-paper { border-color: var(--paper); color: var(--paper); }
.button-paper:hover { background: var(--paper); color: var(--ink); }
.button[disabled] { opacity: .48; cursor: not-allowed; transform: none; }

.course-hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(340px, .65fr);
  border-right: 1px solid var(--gray-3);
  border-left: 1px solid var(--gray-3);
}
.course-intro {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 84px clamp(32px, 6vw, 88px);
  overflow: hidden;
  background:
    linear-gradient(var(--gray-3) 1px, transparent 1px),
    linear-gradient(90deg, var(--gray-3) 1px, transparent 1px);
  background-size: 48px 48px;
}
.course-intro::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(250, 246, 238, .98), rgba(250, 246, 238, .74));
}
.course-intro > * { position: relative; }
.course-kicker { display: flex; align-items: center; gap: 12px; }
.course-kicker::before { content: ''; width: 30px; height: 2px; background: var(--red); }
.course-intro h1 {
  max-width: 930px;
  margin: 24px 0 0;
  font: 700 clamp(64px, 7.3vw, 112px)/.9 var(--display);
  letter-spacing: -.058em;
}
.course-intro h1 em { color: var(--red); font-weight: 400; }
.course-lead {
  max-width: 720px;
  margin: 30px 0 0;
  color: var(--gray-1);
  font: italic 400 clamp(18px, 1.6vw, 23px)/1.46 var(--display);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.course-ledger {
  position: relative;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  padding: 38px;
  overflow: hidden;
  background: var(--red);
  color: #fff;
}
.course-ledger::before {
  content: '';
  position: absolute;
  right: -100px;
  top: 80px;
  width: 250px;
  height: 250px;
  border: 62px solid rgba(15, 13, 10, .14);
  border-radius: 50%;
}
.ledger-top, .ledger-bottom { position: relative; display: flex; justify-content: space-between; gap: 20px; }
.ledger-chip { padding: 7px 9px; border: 1px solid rgba(255,255,255,.38); font: 700 9px/1 var(--mono); text-transform: uppercase; letter-spacing: .12em; }
.ledger-number { position: relative; margin-top: auto; font: 700 clamp(130px, 14vw, 210px)/.72 var(--display); letter-spacing: -.08em; }
.ledger-title { position: relative; max-width: 280px; margin: 28px 0 0; font: italic 400 29px/1.05 var(--display); }
.ledger-meter { position: relative; display: grid; grid-template-columns: repeat(16, 1fr); gap: 4px; margin: 36px 0 20px; }
.ledger-meter span { height: 7px; background: rgba(255,255,255,.28); }
.ledger-meter span.done { background: var(--volt); }
.ledger-bottom { align-items: center; font: 700 9px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.ledger-bottom i { width: 14px; height: 14px; border-radius: 50%; background: var(--volt); }

.fact-strip {
  min-height: 64px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--ink);
  color: var(--paper);
}
.fact-strip div { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 16px; border-right: 1px solid rgba(255,255,255,.12); }
.fact-strip div:last-child { border-right: 0; }
.fact-strip strong { color: var(--volt); font: 700 18px/1 var(--display); }
.fact-strip span { font: 700 9px/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; }

.lms-section { padding-block: 110px; }
.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .55fr);
  align-items: end;
  gap: 70px;
  margin-bottom: 52px;
}
.section-heading h2 {
  margin: 16px 0 0;
  font: 700 clamp(48px, 6vw, 84px)/.94 var(--display);
  letter-spacing: -.05em;
}
.section-heading h2 em { color: var(--red); font-weight: 400; }
.section-heading p { margin: 0; color: var(--gray-1); font-size: 17px; line-height: 1.58; }

.journey-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 2px solid var(--ink); }
.journey-step { min-height: 245px; padding: 26px; border-right: 1px solid var(--gray-3); border-bottom: 1px solid var(--gray-3); background: var(--paper-pure); }
.journey-step:last-child { border-right: 0; }
.journey-step span { font: 700 11px/1 var(--mono); color: var(--red); }
.journey-step h3 { margin: 70px 0 11px; font: 650 28px/1 var(--display); letter-spacing: -.025em; }
.journey-step p { margin: 0; color: var(--gray-1); font-size: 14px; line-height: 1.5; }

.curriculum { background: var(--paper-pure); border-block: 1px solid var(--gray-3); }
.curriculum-head { padding-top: 95px; }
.week-block { display: grid; grid-template-columns: 230px minmax(0, 1fr); border-top: 1px solid var(--gray-3); }
.week-summary { padding: 32px 28px 32px 0; }
.week-number { display: block; color: var(--red); font: 700 11px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.week-summary h3 { margin: 15px 0 10px; font: 650 29px/1.04 var(--display); letter-spacing: -.025em; }
.week-summary p { margin: 0; color: var(--gray-1); font-size: 13px; line-height: 1.5; }
.live-session { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; font: 700 9px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.live-session::before { content: ''; width: 7px; height: 7px; background: var(--volt-deep); }
.week-lessons { display: grid; grid-template-columns: 1fr 1fr; border-left: 1px solid var(--gray-3); }
.lesson-card {
  min-width: 0;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border-right: 1px solid var(--gray-3);
  color: var(--ink);
  text-decoration: none;
  transition: background .2s ease, color .2s ease;
}
.lesson-card:last-child { border-right: 0; }
.lesson-card:hover { background: var(--red-soft); }
.lesson-card.is-complete { box-shadow: inset 0 4px 0 var(--volt-deep); }
.lesson-card.is-locked { background: var(--gray-bg); }
.lesson-card.is-locked:hover { background: var(--sand); }
.lesson-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; }
.lesson-number { font: 650 42px/.85 var(--display); color: var(--red); }
.lesson-access { padding: 7px 9px; border: 1px solid var(--gray-3); color: var(--gray-1); font: 700 8px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.lesson-access.open { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.lesson-access.done { border-color: var(--volt-deep); background: var(--volt); color: var(--ink); }
.lesson-access.soon { border-color: var(--red); color: var(--red); }
.lesson-quiz-score { color: var(--red); }
.lesson-quiz-score.passed { color: var(--volt-deep); }
.lesson-card h4 { max-width: 540px; margin: 38px 0 12px; font: 650 clamp(27px, 2.5vw, 38px)/1.01 var(--display); letter-spacing: -.035em; }
.lesson-card p { max-width: 590px; margin: 0; color: var(--gray-1); font-size: 14px; line-height: 1.48; }
.lesson-card-bottom { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; margin-top: auto; padding-top: 24px; }
.lesson-meta { display: flex; flex-wrap: wrap; gap: 13px; color: var(--gray-2); font: 700 9px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.lesson-arrow { width: 42px; height: 42px; flex: 0 0 42px; display: grid; place-items: center; border: 1px solid var(--ink); font-size: 21px; }
.lesson-card:hover .lesson-arrow { background: var(--ink); color: var(--paper); }

.capstone-panel {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  min-height: 430px;
  background: var(--ink);
  color: var(--paper);
}
.capstone-title { display: flex; flex-direction: column; padding: 44px; border-right: 1px solid rgba(255,255,255,.14); }
.capstone-title .mono-label { color: var(--volt); }
.capstone-title h2 { margin: auto 0 0; font: 650 clamp(46px, 5vw, 72px)/.92 var(--display); letter-spacing: -.045em; }
.capstone-title h2 em { color: var(--red); font-weight: 400; }
.capstone-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; align-content: center; padding: 54px; }
.capstone-copy > p { grid-column: 1 / -1; max-width: 760px; margin: 0; color: var(--gray-2); font: italic 400 24px/1.35 var(--display); }
.capstone-list { margin: 0; padding: 0; list-style: none; }
.capstone-list li { padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.14); color: var(--gray-2); font-size: 14px; }
.capstone-list li::before { content: '•'; margin-right: 10px; color: var(--red); }

.dashboard-main { padding-block: 70px 110px; }
.dashboard-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; padding-bottom: 44px; border-bottom: 2px solid var(--ink); }
.dashboard-heading h1 { max-width: 850px; margin: 16px 0 0; font: 700 clamp(58px, 7vw, 100px)/.9 var(--display); letter-spacing: -.055em; }
.dashboard-heading h1 em { color: var(--red); font-weight: 400; }
.dashboard-heading p { max-width: 370px; margin: 0; color: var(--gray-1); font-size: 16px; line-height: 1.55; }
.dashboard-stats { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); margin-top: 18px; }
.progress-tile, .stat-tile { min-height: 220px; padding: 28px; border: 1px solid var(--gray-3); border-left: 0; background: var(--paper-pure); }
.progress-tile { border-left: 1px solid var(--gray-3); background: var(--ink); color: var(--paper); }
.progress-tile strong, .stat-tile strong { display: block; margin-top: 42px; font: 700 66px/.9 var(--display); letter-spacing: -.06em; }
.progress-tile strong { color: var(--volt); }
.stat-tile strong { color: var(--red); }
.progress-tile p, .stat-tile p { margin: 12px 0 0; color: var(--gray-2); font: 700 9px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.dashboard-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 18px; margin-top: 18px; }
.dashboard-panel { padding: 34px; border: 1px solid var(--gray-3); background: var(--paper-pure); }
.panel-heading { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding-bottom: 20px; border-bottom: 1px solid var(--gray-3); }
.panel-heading h2 { margin: 0; font: 650 30px/1 var(--display); letter-spacing: -.03em; }
.resume-card { min-height: 300px; display: flex; flex-direction: column; padding-top: 32px; }
.resume-card h3 { max-width: 620px; margin: 16px 0 12px; font: 650 clamp(36px, 4vw, 54px)/.98 var(--display); letter-spacing: -.04em; }
.resume-card p { max-width: 620px; margin: 0; color: var(--gray-1); line-height: 1.5; }
.resume-card .button { align-self: flex-start; margin-top: auto; }
.week-progress-list { display: grid; gap: 0; padding-top: 18px; }
.week-progress-row { display: grid; grid-template-columns: 86px 1fr auto; align-items: center; gap: 15px; padding: 15px 0; border-bottom: 1px solid var(--gray-3); }
.week-progress-row span:first-child { font: 700 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--gray-1); }
.mini-meter { height: 8px; background: var(--gray-bg); }
.mini-meter i { display: block; height: 100%; background: var(--red); }
.week-progress-row strong { min-width: 32px; text-align: right; font: 700 11px/1 var(--mono); }
.activity-list { margin: 20px 0 0; padding: 0; list-style: none; }
.activity-list li { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--gray-3); }
.activity-list .check { width: 30px; height: 30px; display: grid; place-items: center; background: var(--volt); font-weight: 800; }
.activity-list strong { display: block; font: 600 16px/1.2 var(--display); }
.activity-list small { color: var(--gray-2); font: 700 9px/1 var(--mono); }
.empty-inline { padding: 38px 0; color: var(--gray-1); line-height: 1.5; }

.lesson-page { min-height: calc(100vh - var(--header)); display: grid; grid-template-columns: 310px minmax(0, 1fr); }
.lesson-sidebar { position: sticky; top: var(--header); height: calc(100vh - var(--header)); overflow: auto; border-right: 1px solid var(--gray-3); background: var(--paper-pure); }
.lesson-sidebar-head { position: sticky; top: 0; z-index: 2; padding: 25px; border-bottom: 1px solid var(--gray-3); background: var(--paper-pure); }
.lesson-sidebar-head a { text-decoration: none; }
.lesson-sidebar-head h2 { margin: 9px 0 0; font: 650 23px/1 var(--display); }
.lesson-list { margin: 0; padding: 0; list-style: none; }
.lesson-list a { display: grid; grid-template-columns: 34px 1fr 12px; gap: 10px; align-items: center; min-height: 68px; padding: 12px 20px; border-bottom: 1px solid var(--gray-3); text-decoration: none; }
.lesson-list a:hover { background: var(--red-soft); }
.lesson-list a[aria-current='page'] { background: var(--ink); color: var(--paper); }
.lesson-list .side-num { color: var(--red); font: 700 11px/1 var(--mono); }
.lesson-list a[aria-current='page'] .side-num { color: var(--volt); }
.lesson-list strong { display: block; font-size: 13px; line-height: 1.15; }
.lesson-list small { display: block; margin-top: 5px; color: var(--gray-2); font: 700 8px/1 var(--mono); text-transform: uppercase; letter-spacing: .07em; }
.lesson-list .side-state { width: 8px; height: 8px; border: 1px solid var(--gray-2); border-radius: 50%; }
.lesson-list .side-state.done { border-color: var(--volt-deep); background: var(--volt); }
.lesson-main { min-width: 0; padding: 34px clamp(24px, 5vw, 78px) 100px; }
.lesson-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: var(--gray-1); font: 700 9px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.lesson-breadcrumb a { text-decoration: none; }
.lesson-masthead { display: grid; grid-template-columns: 1fr auto; gap: 36px; align-items: end; padding: 54px 0 42px; border-bottom: 2px solid var(--ink); }
.lesson-masthead h1 { max-width: 950px; margin: 16px 0 0; font: 700 clamp(50px, 6vw, 86px)/.92 var(--display); letter-spacing: -.052em; }
.lesson-masthead p { max-width: 760px; margin: 24px 0 0; color: var(--gray-1); font: italic 400 20px/1.43 var(--display); }
.lesson-masthead-meta { display: grid; gap: 9px; min-width: 180px; }
.lesson-masthead-meta span { padding: 10px 12px; border: 1px solid var(--gray-3); text-align: center; font: 700 9px/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.lesson-nav-row { display: flex; justify-content: space-between; gap: 14px; margin-top: 18px; }
.lesson-nav-row a { min-height: 44px; display: inline-flex; align-items: center; gap: 10px; color: var(--gray-1); text-decoration: none; font: 700 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.lesson-nav-row a:hover { color: var(--red); }
.lesson-content-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(250px, .5fr); gap: 18px; margin-top: 50px; }
.learning-outcomes { padding: 32px; background: var(--ink); color: var(--paper); }
.learning-outcomes h2 { margin: 12px 0 24px; font: 650 34px/1 var(--display); }
.learning-outcomes ul { margin: 0; padding: 0; list-style: none; }
.learning-outcomes li { padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.14); color: var(--gray-2); line-height: 1.45; }
.learning-outcomes li::before { content: '✓'; margin-right: 10px; color: var(--volt); }
.lesson-sequence { padding: 32px; border: 1px solid var(--gray-3); background: var(--paper-pure); }
.lesson-sequence h2 { margin: 12px 0 24px; font: 650 30px/1 var(--display); }
.lesson-sequence ol { margin: 0; padding-left: 22px; color: var(--gray-1); }
.lesson-sequence li { padding: 8px 0; }
.lesson-section { margin-top: 64px; }
.lesson-section-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; padding-bottom: 18px; border-bottom: 2px solid var(--ink); }
.lesson-section-heading h2 { margin: 10px 0 0; font: 650 clamp(36px, 4vw, 54px)/.98 var(--display); letter-spacing: -.04em; }
.lesson-section-heading p { max-width: 480px; margin: 0; color: var(--gray-1); font-size: 14px; line-height: 1.5; }
.video-frame { position: relative; aspect-ratio: 16 / 9; display: grid; place-items: center; margin-top: 22px; overflow: hidden; background: var(--ink); color: var(--paper); }
.video-frame video { width: 100%; height: 100%; object-fit: cover; }
.video-placeholder { max-width: 560px; padding: 32px; text-align: center; }
.video-play { width: 78px; height: 78px; display: grid; place-items: center; margin: 0 auto 24px; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; color: var(--red); font-size: 30px; }
.video-placeholder h3 { margin: 0; font: 600 32px/1 var(--display); }
.video-placeholder p { margin: 14px 0 0; color: var(--gray-2); line-height: 1.45; }
.deck-frame-wrap { margin-top: 22px; border: 1px solid var(--gray-3); background: var(--ink); }
.deck-toolbar { min-height: 52px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 10px 16px; color: var(--paper); }
.deck-toolbar span { font: 700 9px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.deck-toolbar a { color: var(--volt); text-decoration: none; font: 700 9px/1 var(--mono); text-transform: uppercase; }
.deck-frame { width: 100%; aspect-ratio: 16 / 9; display: block; border: 0; background: var(--paper); }
.guide-sections { display: grid; gap: 16px; margin-top: 22px; }
.guide-card { padding: 30px; border: 1px solid var(--gray-3); background: var(--paper-pure); }
.guide-card h3 { margin: 0 0 15px; font: 650 30px/1 var(--display); letter-spacing: -.03em; }
.guide-card p { margin: 0 0 13px; color: var(--gray-1); line-height: 1.55; }
.guide-card ul, .guide-card ol { margin: 14px 0 0; padding-left: 22px; color: var(--gray-1); }
.guide-card li { padding: 7px 0; line-height: 1.45; }
.guide-note { margin-top: 18px; padding: 18px 20px; border-left: 5px solid var(--red); background: var(--sand); font: italic 400 18px/1.4 var(--display); }
.materials-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 22px; border-top: 2px solid var(--ink); }
.material-card { min-height: 180px; display: flex; flex-direction: column; padding: 24px; border-right: 1px solid var(--gray-3); border-bottom: 1px solid var(--gray-3); background: var(--paper-pure); text-decoration: none; }
.material-card:last-child { border-right: 0; }
.material-card:hover { background: var(--red-soft); }
.material-card span { color: var(--red); font: 700 9px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.material-card strong { margin-top: auto; font: 650 25px/1 var(--display); }
.material-card small { margin-top: 9px; color: var(--gray-1); line-height: 1.35; }
.assignment-card { margin-top: 22px; padding: 34px; border-left: 7px solid var(--red); background: var(--sand); }
.assignment-card h3 { margin: 0 0 14px; font: 650 32px/1 var(--display); }
.assignment-card p { max-width: 900px; margin: 0; color: var(--gray-1); line-height: 1.55; }
.completion-actions { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 54px; padding: 28px; background: var(--ink); color: var(--paper); }
.completion-actions h2 { margin: 0; font: 650 31px/1 var(--display); }
.completion-actions p { margin: 9px 0 0; color: var(--gray-2); }

.access-gate { min-height: 520px; display: grid; grid-template-columns: .8fr 1.2fr; margin-top: 42px; background: var(--ink); color: var(--paper); }
.gate-symbol { position: relative; display: grid; place-items: center; overflow: hidden; border-right: 1px solid rgba(255,255,255,.14); }
.gate-symbol::before { content: ''; width: 200px; height: 200px; border: 58px solid var(--red); border-radius: 50%; }
.gate-symbol::after { content: ''; position: absolute; width: 75px; height: 110px; background: var(--volt); }
.gate-copy { align-self: center; padding: 52px; }
.gate-copy h2 { max-width: 700px; margin: 17px 0 18px; font: 650 clamp(45px, 5vw, 70px)/.94 var(--display); letter-spacing: -.045em; }
.gate-copy h2 em { color: var(--red); font-weight: 400; }
.gate-copy p { max-width: 650px; margin: 0; color: var(--gray-2); font-size: 17px; line-height: 1.55; }
.gate-copy .hero-actions { margin-top: 30px; }

.quiz-shell { margin-top: 22px; border: 1px solid var(--gray-3); background: var(--paper-pure); }
.quiz-intro { display: flex; justify-content: space-between; gap: 24px; padding: 28px; border-bottom: 1px solid var(--gray-3); }
.quiz-intro h3 { margin: 9px 0 0; font: 650 31px/1 var(--display); }
.quiz-score { font: 700 42px/1 var(--display); color: var(--red); }
.quiz-prior { margin: 12px 0 0; font: 700 11px/1.3 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--gray-1); }
.quiz-prior.passed { color: var(--volt-deep); }
.quiz-form { display: grid; gap: 0; }
.quiz-question { padding: 28px; border-bottom: 1px solid var(--gray-3); }
.quiz-question legend { width: 100%; margin-bottom: 20px; font: 600 21px/1.25 var(--display); }
.question-index { display: block; margin-bottom: 9px; color: var(--red); font: 700 9px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.quiz-options { display: grid; gap: 8px; }
.quiz-option { position: relative; display: grid; grid-template-columns: 24px 1fr; align-items: start; gap: 12px; min-height: 50px; padding: 14px; border: 1px solid var(--gray-3); cursor: pointer; }
.quiz-option:hover { background: var(--red-soft); }
.quiz-option input { width: 18px; height: 18px; margin: 0; accent-color: var(--red); }
.ordering-list { display: grid; gap: 8px; }
.ordering-item { display: grid; grid-template-columns: 30px 1fr auto; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--gray-3); }
.ordering-item > span:first-child { color: var(--red); font: 700 11px/1 var(--mono); }
.ordering-controls { display: flex; gap: 6px; }
.ordering-controls button { width: 40px; height: 40px; border: 1px solid var(--ink); background: transparent; cursor: pointer; }
.ordering-controls button:hover { background: var(--ink); color: var(--paper); }
.quiz-submit { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 28px; }
.quiz-submit p { margin: 0; color: var(--gray-1); font-size: 13px; }
.quiz-result { padding: 28px; background: var(--ink); color: var(--paper); }
.quiz-result h3 { margin: 12px 0; font: 650 35px/1 var(--display); }
.quiz-result > p { color: var(--gray-2); }
.answer-result { margin-top: 12px; padding: 15px; border-left: 4px solid var(--gray-2); background: rgba(255,255,255,.06); }
.answer-result.correct { border-left-color: var(--volt); }
.answer-result strong { display: block; color: var(--paper); }
.answer-result p { margin: 7px 0 0; color: var(--gray-2); line-height: 1.45; }

.interface-state { min-height: 420px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: clamp(32px, 7vw, 90px); border: 1px solid var(--gray-3); background: var(--paper-pure); }
.interface-state h2 { max-width: 800px; margin: 17px 0; font: 650 clamp(43px, 5vw, 70px)/.95 var(--display); letter-spacing: -.045em; }
.interface-state p { max-width: 650px; margin: 0 0 28px; color: var(--gray-1); font-size: 16px; line-height: 1.55; }
.state-error { border-color: var(--red); background: var(--red-soft); }
.loading-grid { display: grid; gap: 12px; }
.skeleton { min-height: 110px; background: linear-gradient(90deg, var(--gray-bg), var(--paper-pure), var(--gray-bg)); background-size: 200% 100%; animation: skeleton 1.5s linear infinite; }
@keyframes skeleton { to { background-position: -200% 0; } }

.lms-footer { background: var(--ink); color: var(--paper); }
.footer-grid { min-height: 190px; display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; gap: 30px; }
.footer-wordmark { font: 700 34px/1 var(--display); letter-spacing: -.04em; }
.footer-grid p { margin: 0; color: var(--gray-2); text-align: center; font: italic 400 16px/1.4 var(--display); }
.footer-links { display: flex; justify-content: flex-end; gap: 24px; }
.footer-links a { color: var(--gray-2); text-decoration: none; font: 700 9px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.footer-links a:hover { color: var(--volt); }

@media (max-width: 1100px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .lms-navigation { grid-column: 1 / -1; order: 3; justify-content: center; min-height: 44px; border-top: 1px solid var(--gray-3); }
  .lms-header { --header: 121px; }
  .course-hero { grid-template-columns: 1.25fr .75fr; }
  .course-intro { padding-inline: 42px; }
  .week-block { grid-template-columns: 180px 1fr; }
  .journey-grid { grid-template-columns: 1fr 1fr; }
  .journey-step:nth-child(2) { border-right: 0; }
  .dashboard-stats { grid-template-columns: 1fr 1fr; }
  .progress-tile, .stat-tile { border-left: 1px solid var(--gray-3); }
  .lesson-page { grid-template-columns: 250px 1fr; }
  .lesson-content-grid { grid-template-columns: 1fr; }
}

@media (max-width: 780px) {
  :root { --header: 68px; }
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .lms-header { --header: 68px; }
  .header-inner { min-height: 68px; grid-template-columns: 1fr auto auto; gap: 12px; }
  .lms-brand { font-size: 20px; }
  .brand-mark { width: 28px; height: 28px; }
  .mobile-menu-button { width: 44px; height: 44px; display: grid; align-content: center; gap: 7px; padding: 10px; border: 1px solid var(--ink); background: transparent; cursor: pointer; }
  .mobile-menu-button i { display: block; height: 2px; background: var(--ink); transition: transform .2s; }
  .mobile-menu-button[aria-expanded='true'] i:first-of-type { transform: translateY(4.5px) rotate(45deg); }
  .mobile-menu-button[aria-expanded='true'] i:last-of-type { transform: translateY(-4.5px) rotate(-45deg); }
  .lms-navigation { position: fixed; inset: 68px 0 auto; display: none; align-items: stretch; padding: 10px 14px 22px; border-bottom: 1px solid var(--gray-3); background: var(--paper); }
  .lms-navigation.open { display: grid; }
  .lms-navigation a { min-height: 52px; display: flex; align-items: center; padding: 0 10px; border-bottom: 1px solid var(--gray-3); }
  .lms-navigation a::after { display: none; }
  .account-state { display: none; }
  .lms-account .button { min-width: 72px; }
  .text-action { padding-inline: 12px; border: 1px solid var(--gray-3); }
  .course-hero { min-height: 0; grid-template-columns: 1fr; border: 0; }
  .course-intro { min-height: 590px; padding: 65px 22px; }
  .course-intro h1 { font-size: clamp(56px, 16vw, 80px); }
  .course-ledger { min-height: 450px; padding: 28px; }
  .ledger-number { font-size: 150px; }
  .fact-strip { grid-template-columns: 1fr 1fr; }
  .fact-strip div:nth-child(2) { border-right: 0; }
  .fact-strip div:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.12); }
  .lms-section { padding-block: 76px; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; margin-bottom: 36px; }
  .section-heading h2 { font-size: clamp(45px, 13vw, 68px); }
  .journey-grid { grid-template-columns: 1fr; }
  .journey-step { min-height: 200px; border-right: 0; }
  .journey-step h3 { margin-top: 45px; }
  .curriculum-head { padding-top: 72px; }
  .week-block { grid-template-columns: 1fr; }
  .week-summary { padding: 28px 0; }
  .week-lessons { grid-template-columns: 1fr; border-left: 0; }
  .lesson-card { min-height: 280px; padding: 26px 20px; border-right: 0; border-top: 1px solid var(--gray-3); }
  .lesson-card h4 { font-size: 31px; }
  .capstone-panel { grid-template-columns: 1fr; }
  .capstone-title { min-height: 300px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .capstone-copy { grid-template-columns: 1fr; padding: 36px 28px; }
  .capstone-copy > p { grid-column: auto; }
  .dashboard-main { padding-block: 48px 76px; }
  .dashboard-heading { align-items: flex-start; flex-direction: column; }
  .dashboard-heading h1 { font-size: clamp(56px, 16vw, 78px); }
  .dashboard-stats, .dashboard-grid { grid-template-columns: 1fr; }
  .progress-tile, .stat-tile { min-height: 170px; }
  .progress-tile strong, .stat-tile strong { margin-top: 26px; }
  .dashboard-panel { padding: 26px 20px; }
  .lesson-page { display: block; }
  .lesson-sidebar { position: static; height: auto; max-height: 250px; border-right: 0; border-bottom: 1px solid var(--gray-3); }
  .lesson-sidebar-head { padding: 18px 20px; }
  .lesson-sidebar-head h2 { display: none; }
  .lesson-list { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; }
  .lesson-list li { min-width: 210px; scroll-snap-align: start; }
  .lesson-list a { border-right: 1px solid var(--gray-3); }
  .lesson-main { padding: 26px 14px 72px; }
  .lesson-masthead { grid-template-columns: 1fr; padding-block: 42px 32px; }
  .lesson-masthead h1 { font-size: clamp(48px, 14vw, 70px); }
  .lesson-masthead-meta { grid-template-columns: repeat(2, 1fr); }
  .lesson-content-grid { margin-top: 34px; }
  .lesson-section { margin-top: 52px; }
  .lesson-section-heading { align-items: flex-start; flex-direction: column; }
  .deck-frame { min-height: 360px; aspect-ratio: auto; }
  .materials-grid { grid-template-columns: 1fr; }
  .material-card { border-right: 0; }
  .completion-actions { align-items: flex-start; flex-direction: column; }
  .access-gate { min-height: 0; grid-template-columns: 1fr; }
  .gate-symbol { min-height: 280px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .gate-copy { padding: 36px 26px; }
  .quiz-intro, .quiz-submit { align-items: flex-start; flex-direction: column; }
  .footer-grid { min-height: 260px; grid-template-columns: 1fr; align-content: center; text-align: center; }
  .footer-links { justify-content: center; }
}

@media (max-width: 430px) {
  .lms-account .button { min-width: 60px; padding-inline: 10px; }
  .course-intro { min-height: 540px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .fact-strip { grid-template-columns: 1fr; }
  .fact-strip div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .lesson-card-top { align-items: flex-start; flex-direction: column; }
  .lesson-card h4 { margin-top: 24px; }
  .lesson-card-bottom { align-items: flex-start; }
  .lesson-meta { flex-direction: column; }
  .week-progress-row { grid-template-columns: 70px 1fr; }
  .week-progress-row strong { grid-column: 2; }
  .lesson-masthead-meta { grid-template-columns: 1fr; }
  .lesson-nav-row { align-items: stretch; flex-direction: column; }
  .deck-toolbar { align-items: flex-start; flex-direction: column; }
  .deck-frame { min-height: 300px; }
  .quiz-question { padding: 22px 16px; }
  .ordering-item { grid-template-columns: 24px 1fr; }
  .ordering-controls { grid-column: 2; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* ---- Track switcher (guest only) ---- */
.lms-track-switch {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--paper-pure);
}
.lms-track-switch[hidden] { display: none; }
.track-option {
  font: 600 12px/1 'Inter Tight', system-ui, sans-serif;
  letter-spacing: .02em;
  padding: 8px 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s ease, color .15s ease;
}
.track-option:hover:not(.is-active) { color: var(--red); }
.track-option.is-active { background: var(--ink); color: var(--paper); cursor: default; }
@media (max-width: 640px) {
  .track-option { padding: 7px 10px; font-size: 11px; }
}