:root {
  --ga-bg: #050505;
  --ga-bg-soft: #0f0f10;
  --ga-card: #101010;
  --ga-ink: #ffffff;
  --ga-muted: #b8b8c0;
  --ga-faint: #7f8590;
  --ga-line: #373737;
  --ga-line-soft: #252525;
  --ga-chip: #141414;
  --ga-chip-hover: #202020;
  --ga-blue: #0a72ff;
  --ga-blue-bright: #1fb6ff;
  --ga-font: "Inter Tight", "Inter", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--ga-bg);
  color: var(--ga-ink);
  font-family: var(--ga-font);
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  background:
    radial-gradient(circle at 50% -22%, rgba(10, 114, 255, .2), transparent 42%),
    var(--ga-bg);
  color: var(--ga-ink);
  font-family: var(--ga-font);
  line-height: 1.35;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.learn-header {
  width: min(1400px, calc(100% - 24px));
  margin: 0 auto;
  padding: 20px 0 0;
  display: flex;
  gap: 4px;
  align-items: flex-start;
}

.brand-mark,
.learn-header nav a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  border: 1px solid var(--ga-line);
  background: var(--ga-chip);
  color: var(--ga-muted);
}

.brand-mark {
  width: 34px;
  justify-content: center;
  flex: 0 0 auto;
}

.brand-mark::before {
  content: "";
  width: 15px;
  height: 15px;
  background: var(--ga-blue-bright);
  clip-path: polygon(0 30%, 100% 0, 100% 100%, 0 70%);
}

.learn-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  min-width: 0;
}

.learn-header nav a {
  padding: 0 12px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
}

.learn-header nav a:hover,
.learn-header nav a:focus-visible,
.module-card:hover,
.module-card:focus-visible {
  background: var(--ga-chip-hover);
  border-color: var(--ga-blue);
  color: var(--ga-ink);
  outline: none;
}

.learn-shell {
  width: min(1400px, calc(100% - 24px));
  margin: 0 auto;
  padding: 30px 0 80px;
}

.access-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 12px;
  align-items: stretch;
  min-width: 0;
}

.access-copy,
.signup-gate,
.course-rail,
.lesson-hero,
.lesson-block {
  min-width: 0;
  border: 1px solid var(--ga-line);
  background:
    linear-gradient(135deg, rgba(10, 114, 255, .14), rgba(31, 182, 255, .03)),
    var(--ga-card);
}

.access-copy {
  position: relative;
  overflow: clip;
  padding: clamp(28px, 5vw, 58px);
}

.access-copy::before,
.lesson-hero::before {
  content: "+";
  position: absolute;
  top: 28px;
  right: 28px;
  color: var(--ga-blue-bright);
  font-size: 18px;
  line-height: 1;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--ga-blue-bright);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "/ ";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 1040px;
  margin-bottom: 20px;
  font-size: clamp(48px, 8vw, 108px);
  font-weight: 800;
  line-height: .9;
  letter-spacing: 0;
}

.access-lede {
  max-width: 770px;
  margin-bottom: 26px;
  color: var(--ga-muted);
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 600;
  line-height: 1.12;
}

.access-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.access-facts span,
.lesson-title-row span,
.rail-cta span {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid var(--ga-blue);
  background: var(--ga-chip);
  color: var(--ga-blue-bright);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.signup-gate {
  display: grid;
  align-content: center;
  gap: 16px;
  padding: 24px;
}

.form-title {
  margin-bottom: 4px;
  color: var(--ga-ink);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.05;
}

.signup-gate label {
  display: grid;
  gap: 8px;
}

.signup-gate label span {
  color: var(--ga-muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.signup-gate input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--ga-line);
  background: #080808;
  color: var(--ga-ink);
  padding: 0 12px;
  font-size: 16px;
}

.signup-gate input:focus {
  border-color: var(--ga-blue-bright);
  outline: none;
  box-shadow: 0 0 0 2px rgba(31, 182, 255, .24);
}

.signup-gate button,
.rail-cta a,
.lesson-block.next-step a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ga-blue-bright);
  background: linear-gradient(90deg, var(--ga-blue), var(--ga-blue-bright));
  color: var(--ga-bg);
  padding: 0 12px;
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
  cursor: pointer;
}

.signup-gate button:hover,
.signup-gate button:focus-visible,
.rail-cta a:hover,
.lesson-block.next-step a:hover {
  box-shadow: 0 0 0 1px rgba(31, 182, 255, .18), 0 0 24px rgba(31, 182, 255, .32);
  outline: none;
}

.gate-note {
  margin: 0;
  color: var(--ga-muted);
  font-size: 13px;
  line-height: 1.45;
}

.gate-note.error {
  color: var(--ga-blue-bright);
}

.classroom {
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 12px;
  min-width: 0;
}

.course-rail {
  align-self: start;
  position: sticky;
  top: 12px;
  padding: 14px;
}

.rail-head {
  padding: 10px 8px 18px;
  border-bottom: 1px solid var(--ga-line);
}

.rail-head h2 {
  margin-bottom: 8px;
  font-size: 30px;
  line-height: 1;
}

.rail-head p:last-child {
  margin: 0;
  color: var(--ga-muted);
  font-size: 13px;
}

.module-list {
  display: grid;
  gap: 6px;
  padding: 12px 0;
}

.module-card {
  display: grid;
  gap: 7px;
  width: 100%;
  min-height: 112px;
  padding: 13px;
  border: 1px solid var(--ga-line);
  background: var(--ga-chip);
  color: var(--ga-muted);
  text-align: left;
  cursor: pointer;
}

.module-card.active {
  border-color: var(--ga-blue-bright);
  background: linear-gradient(135deg, rgba(10, 114, 255, .22), rgba(31, 182, 255, .06)), var(--ga-chip-hover);
  color: var(--ga-ink);
}

.module-card span,
.module-card small {
  color: var(--ga-blue-bright);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.module-card strong {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.05;
}

.rail-cta {
  display: grid;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--ga-line);
}

.rail-cta strong {
  color: var(--ga-ink);
  font-size: 18px;
  font-weight: 850;
  line-height: 1.05;
}

.rail-cta-community {
  margin-top: 6px;
}

.lesson-panel {
  min-width: 0;
}

.lesson-hero {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 22px;
}

.lesson-title-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.lesson-title-row h2 {
  margin: 0;
  font-size: clamp(38px, 6vw, 82px);
  font-weight: 800;
  line-height: .9;
}

.video-wrap {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--ga-line-soft);
  background: #000;
}

.video-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.watch-link {
  justify-self: start;
  color: var(--ga-blue-bright);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.pending-video {
  display: grid;
  place-items: center;
  min-height: 320px;
  padding: 24px;
  border: 1px solid var(--ga-line-soft);
  background: #070707;
  text-align: center;
}

.pending-video span {
  color: var(--ga-blue-bright);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.pending-video strong {
  max-width: 520px;
  font-size: clamp(28px, 5vw, 58px);
  font-weight: 800;
  line-height: .95;
}

.pending-video p {
  max-width: 480px;
  margin-bottom: 0;
  color: var(--ga-muted);
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.lesson-block {
  padding: 20px;
}

.lesson-block.wide {
  grid-column: span 2;
}

.lesson-block h3 {
  margin-bottom: 12px;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.05;
}

.lesson-block p,
.lesson-block li {
  color: var(--ga-muted);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
}

.lesson-block p:last-child {
  margin-bottom: 0;
}

.lesson-block ol,
.lesson-block ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
}

.lesson-block li::marker {
  color: var(--ga-blue-bright);
}

.lesson-block.next-step {
  display: grid;
  align-content: start;
  gap: 12px;
}

.lesson-block.next-step a {
  justify-self: start;
}

[hidden] {
  display: none !important;
}

@media (max-width: 900px) {
  .access-panel,
  .classroom,
  .lesson-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .course-rail {
    position: static;
  }

  .lesson-block.wide {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .learn-header {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .learn-header nav a {
    white-space: normal;
  }

  .learn-shell {
    padding-top: 18px;
  }

  .access-copy,
  .signup-gate,
  .lesson-hero,
  .lesson-block {
    padding: 16px;
  }

  h1 {
    font-size: 46px;
    line-height: .96;
    overflow-wrap: anywhere;
  }

  .access-lede {
    font-size: 22px;
  }

  .lesson-title-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .lesson-title-row h2 {
    font-size: 42px;
    overflow-wrap: anywhere;
  }

  .lesson-block h3,
  .rail-head h2 {
    font-size: 27px;
  }
}

/* Full Day 1 recap injected from the blog article (learn.js v3) */
.lesson-recap {
  border: 1px solid var(--ga-line);
  background: var(--ga-card);
  padding: clamp(18px, 3vw, 30px);
  margin-top: 14px;
}
.lesson-recap > .eyebrow { color: var(--ga-blue-bright); }
.lesson-recap > h3 { margin: 6px 0 14px; font-size: 21px; }
.lesson-recap-body {
  display: grid;
  gap: 12px;
  color: var(--ga-muted);
  font-size: 15.5px;
  line-height: 1.6;
}
.lesson-recap-body h2 { margin: 18px 0 2px; color: var(--ga-ink); font-size: 22px; line-height: 1.2; }
.lesson-recap-body h3 { margin: 14px 0 0; color: var(--ga-ink); font-size: 18px; line-height: 1.25; }
.lesson-recap-body h4 { margin: 10px 0 0; color: var(--ga-ink); font-size: 15px; text-transform: uppercase; letter-spacing: 0.04em; }
.lesson-recap-body p { margin: 0; }
.lesson-recap-body strong { color: var(--ga-ink); }
.lesson-recap-body a { color: var(--ga-blue-bright); text-decoration: underline; text-underline-offset: 3px; }
.lesson-recap-body ul,
.lesson-recap-body ol { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
.lesson-recap-body blockquote { margin: 0; padding: 10px 16px; border-left: 2px solid var(--ga-blue); color: var(--ga-ink); }
.lesson-recap-body pre { margin: 4px 0; padding: 16px; background: var(--ga-bg-soft); border: 1px solid var(--ga-line); overflow-x: auto; }
.lesson-recap-body pre code { font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; font-size: 13px; line-height: 1.55; color: var(--ga-ink); white-space: pre; }
.lesson-recap-body table { width: 100%; border-collapse: collapse; font-size: 14px; }
.lesson-recap-body th,
.lesson-recap-body td { text-align: left; padding: 8px 12px 8px 0; border-bottom: 1px solid var(--ga-line); vertical-align: top; }
.lesson-recap-body th { color: var(--ga-faint); font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; }