:root {
  color-scheme: dark;
  --ink-1000: #050505;
  --ink-950: #080808;
  --ink-900: #121214;
  --ink-800: #1b1b1e;
  --gray-600: #727278;
  --gray-400: #a6a6ab;
  --gray-250: #d2d2d5;
  --paper: #f4f4f2;
  --white: #fff;
  --text-dark: #111113;
  --font-display: "Newsreader", Georgia, serif;
  --font-ui: "Manrope", Arial, sans-serif;
  --content: 80rem;
  --reading: 46rem;
  --radius-sm: .5rem;
  --radius-md: .75rem;
  --line: rgba(255, 255, 255, .15);
  --line-dark: rgba(17, 17, 19, .18);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink-950);
  color: var(--paper);
  font-family: var(--font-ui);
  font-size: 1.125rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: .98;
  letter-spacing: -.035em;
}

h1 { font-size: clamp(2.75rem, 6vw, 5rem); }
h2 { font-size: clamp(2.3rem, 4.5vw, 4rem); }
h3 { font-size: clamp(1.55rem, 2.3vw, 2.15rem); }

::selection { background: var(--paper); color: var(--ink-950); }

:focus-visible {
  outline: .1875rem solid currentColor;
  outline-offset: .25rem;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: .75rem;
  left: .75rem;
  transform: translateY(-180%);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--ink-950);
  padding: .75rem 1rem;
}

.skip-link:focus { transform: translateY(0); }

.container {
  width: min(calc(100% - 2.5rem), var(--content));
  margin-inline: auto;
}

.section-dark { background: var(--ink-950); color: var(--paper); }
.section-paper { background: var(--paper); color: var(--text-dark); }

.eyebrow {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.5rem;
  color: var(--gray-400);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  content: "";
}

.eyebrow--dark { color: #55555b; }

.site-header {
  position: relative;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 8, 8, .94);
}

.site-header__inner {
  min-height: 5rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2.25rem;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: .35rem;
  text-decoration: none;
  letter-spacing: -.035em;
  white-space: nowrap;
}

.wordmark span:first-child { font-family: var(--font-display); font-size: 1.45rem; }
.wordmark span:nth-child(2) { color: var(--gray-400); font-size: .72rem; font-weight: 600; text-transform: uppercase; }
.wordmark strong { font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; }

.nav__links { display: flex; justify-content: center; gap: clamp(1.15rem, 2.5vw, 2.5rem); }
.nav__links a, .footer-links a, .mobile-menu__links a {
  color: var(--gray-400);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms var(--ease);
}
.nav__links a:hover, .nav__links a[aria-current="page"], .footer-links a:hover { color: var(--white); }

.header-cta {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: .55rem 1rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}
.header-cta:hover { background: var(--paper); color: var(--ink-950); }
.mobile-menu { display: none; }

.hero { overflow: hidden; padding: clamp(4rem, 8vw, 7.5rem) 0 0; }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(18rem, .6fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
}
.hero__content { max-width: 52rem; }
.hero h1 { max-width: 15ch; margin-bottom: 1.75rem; }
.hero__lead { max-width: 42rem; color: #b9b9bd; font-size: clamp(1.1rem, 1.8vw, 1.35rem); }

.button-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button {
  min-height: 3.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: .75rem 1.35rem;
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .015em;
  text-decoration: none;
  transition: transform 180ms var(--ease), background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}
.button:hover { transform: translateY(-2px); }
.button--light { background: var(--paper); color: var(--ink-950); }
.button--light:hover { background: var(--white); }
.button--dark { background: var(--ink-950); color: var(--white); }
.button--dark:hover { background: var(--ink-800); }
.button--ghost { border-color: var(--line); color: var(--paper); }
.button--ghost:hover { border-color: rgba(255,255,255,.4); }

.hero-art {
  position: relative;
  min-height: 29rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background:
    linear-gradient(145deg, rgba(255,255,255,.07), transparent 45%),
    radial-gradient(circle at 70% 30%, #333339 0, #171719 32%, #090909 70%);
  padding: 1.4rem;
}
.hero-art--photo { background: #050505; padding: 0; }
.hero-art__image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 68% center; opacity: .92; }
.hero-art--photo::after { position: absolute; inset: 0; border: 0; border-radius: 0; background: linear-gradient(90deg, rgba(0,0,0,.45), transparent 55%), linear-gradient(0deg, rgba(0,0,0,.62), transparent 38%); content: ""; }
.hero-art::before, .hero-art::after {
  position: absolute;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
  content: "";
}
.hero-art::before { width: 22rem; height: 22rem; right: -10rem; top: 3rem; }
.hero-art::after { width: 13rem; height: 13rem; right: -4rem; top: 7.5rem; }
.hero-art--photo::before { display: none; }
.hero-art--photo::after { inset: 0; width: auto; height: auto; right: auto; top: auto; border: 0; border-radius: 0; background: linear-gradient(90deg, rgba(0,0,0,.45), transparent 55%), linear-gradient(0deg, rgba(0,0,0,.62), transparent 38%); }
.hero-art strong {
  position: relative;
  z-index: 1;
  align-self: center;
  margin-block: auto;
  font-family: var(--font-display);
  font-size: clamp(6rem, 13vw, 10rem);
  font-weight: 500;
  letter-spacing: -.08em;
  line-height: 1;
}
.hero-art__line, .hero-art__caption { position: relative; z-index: 1; color: var(--gray-400); font-size: .7rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.hero-art__caption { align-self: flex-end; }

.credibility {
  margin: clamp(4rem, 8vw, 7rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
  border-top: 1px solid var(--line);
}
.credibility li { min-height: 9.5rem; display: flex; flex-direction: column; justify-content: center; gap: .35rem; padding: 1.75rem; border-right: 1px solid var(--line); }
.credibility li:last-child { border-right: 0; }
.credibility strong { font-family: var(--font-display); font-size: clamp(2rem, 3vw, 3rem); font-weight: 500; line-height: 1; }
.credibility span { max-width: 18rem; color: var(--gray-400); font-size: .86rem; }

.statement { padding: clamp(5rem, 10vw, 9rem) 0; }
.statement__grid, .page-intro__grid { display: grid; grid-template-columns: minmax(9rem, .35fr) minmax(0, 1.65fr); gap: 3rem; }
.statement blockquote { margin: 0; }
.statement blockquote p { max-width: 20ch; margin-bottom: 1.5rem; font-family: var(--font-display); font-size: clamp(2.6rem, 6vw, 5.5rem); line-height: .98; letter-spacing: -.04em; }
.statement blockquote footer { color: #5c5c61; font-size: .88rem; }

.about-preview, .products-preview, .messages-preview, .closing, .narrative, .principles, .content-library, .product-catalog, .contact-section, .sales-audience, .learning-outcomes, .sales-pillars, .curriculum-section, .course-method, .authority-section, .sales-closing { padding: clamp(5rem, 10vw, 9rem) 0; }
.split-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(20rem, .72fr); gap: clamp(3rem, 9vw, 9rem); }
.split-layout h2 { max-width: 12ch; }
.prose { max-width: var(--reading); }
.prose p { margin-bottom: 1.35rem; }
.prose--dark { color: #b9b9bd; }
.prose--large { font-size: clamp(1.1rem, 1.6vw, 1.3rem); }

.text-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-width: 12rem; margin-top: .75rem; border-bottom: 1px solid currentColor; padding: .5rem 0; font-size: .82rem; font-weight: 700; letter-spacing: .035em; text-decoration: none; text-transform: uppercase; }
.text-link span:last-child { transition: transform 180ms var(--ease); }
.text-link:hover span:last-child { transform: translate(3px, -3px); }

.section-heading { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(16rem, .55fr); gap: 4rem; align-items: end; margin-bottom: 3.5rem; }
.section-heading h2 { max-width: 13ch; margin-bottom: 0; }
.section-heading > p { color: #5d5d62; font-size: .98rem; }
.section-heading--dark > p { color: var(--gray-400); }

.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.product-card { min-height: 25rem; display: flex; flex-direction: column; border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); padding: clamp(1.5rem, 3vw, 2.5rem); }
.product-card:nth-child(5) { grid-column: 1 / -1; min-height: 20rem; }
.product-card__meta { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: auto; color: #65656b; font-size: .7rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.product-card h3 { max-width: 12ch; margin: 3rem 0 1rem; }
.product-card > p { max-width: 34rem; color: #55555a; font-size: .96rem; }
.product-card > .product-card__duration { margin: .9rem 0 0; color: #77777c; font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.product-card .text-link { margin-top: 1.5rem; }

.message-list { border-top: 1px solid var(--line); }
.message-row { min-height: 11rem; display: grid; grid-template-columns: 3rem 1fr 1fr 2rem; gap: 2rem; align-items: center; border-bottom: 1px solid var(--line); padding: 2rem 0; text-decoration: none; transition: color 180ms var(--ease), background 180ms var(--ease); }
.message-row:hover { color: var(--white); }
.message-row__index, .message-row__topic { color: var(--gray-600); font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.message-row h3 { margin: .4rem 0 0; font-size: clamp(1.7rem, 3vw, 2.7rem); }
.message-row > p { margin: 0; color: var(--gray-400); font-size: .92rem; }
.message-row__arrow { justify-self: end; }

.closing__inner { max-width: 62rem; margin-inline: auto; text-align: center; }
.closing h2 { margin-bottom: 1.5rem; }
.closing p { max-width: 43rem; margin: 0 auto 2rem; color: #56565b; }
.signature { display: block; margin-bottom: 1rem; font-family: var(--font-display); font-size: 3.5rem; font-style: italic; line-height: 1; }

.page-intro { padding: clamp(4rem, 8vw, 7rem) 0 clamp(5rem, 10vw, 9rem); border-bottom: 1px solid var(--line); }
.page-intro h1 { max-width: 14ch; margin-bottom: 1.75rem; }
.page-intro__lead { max-width: 44rem; margin: 0; color: var(--gray-400); font-size: clamp(1.08rem, 1.8vw, 1.35rem); }

.narrative__grid { display: grid; grid-template-columns: minmax(18rem, .65fr) minmax(20rem, 1fr); gap: clamp(3rem, 9vw, 9rem); align-items: start; }
.portrait-panel {
  position: sticky;
  top: 2rem;
  min-height: 37rem;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
}
.portrait-panel img { width: 100%; height: 37rem; object-fit: cover; object-position: center 18%; filter: grayscale(1) contrast(1.04); }
.portrait-panel figcaption { position: absolute; inset: auto 1.5rem 1.35rem; z-index: 1; display: flex; justify-content: space-between; }
.portrait-panel figcaption::before { position: absolute; inset: -4rem -1.5rem -1.35rem; z-index: -1; background: linear-gradient(transparent, rgba(0,0,0,.75)); content: ""; }
.portrait-panel span, .portrait-panel small { color: var(--gray-400); font-size: .7rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.dropcap::first-letter { float: left; margin: .15rem .5rem 0 0; font-family: var(--font-display); font-size: 4.3rem; line-height: .75; }
.prose h2 { margin: 4.5rem 0 1.5rem; }
.editorial-note { margin: 3rem 0; border-left: 2px solid var(--text-dark); padding: .25rem 0 .25rem 1.25rem; }
.editorial-note span { display: block; margin-bottom: .5rem; color: #68686e; font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.editorial-note p { margin: 0; font-family: var(--font-display); font-size: 1.3rem; line-height: 1.35; }
.editorial-note--dark { border-color: var(--text-dark); }

.principle-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.principle-list li { display: grid; grid-template-columns: 3rem 1fr; gap: 1.25rem; border-bottom: 1px solid var(--line); padding: 2rem 0; }
.principle-list li > span { color: var(--gray-600); font-size: .72rem; font-weight: 700; }
.principle-list h3 { margin-bottom: .75rem; }
.principle-list p { margin: 0; color: var(--gray-400); font-size: .92rem; }

.library-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-bottom: 3.5rem; }
.library-intro > p:last-child { max-width: 34rem; color: #5a5a60; }
.content-list { border-top: 1px solid var(--line-dark); }
.content-card { display: grid; grid-template-columns: 4rem 8rem minmax(0, 1fr) auto; gap: 2rem; align-items: center; border-bottom: 1px solid var(--line-dark); padding: 2.5rem 0; text-decoration: none; transition: padding 180ms var(--ease); }
.content-card:hover { padding-inline: .75rem; }
.content-card__image { width: 8rem; height: 7rem; border-radius: var(--radius-sm); object-fit: cover; filter: grayscale(1) contrast(1.04); transition: filter 180ms var(--ease), transform 180ms var(--ease); }
.content-card:hover .content-card__image { filter: grayscale(0); transform: scale(1.02); }
.content-card__number, .content-card__topic { color: #67676d; font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.content-card h2 { margin: .5rem 0 .8rem; font-size: clamp(1.8rem, 3vw, 2.8rem); }
.content-card p { max-width: 40rem; margin-bottom: 0; color: #58585d; font-size: .95rem; }
.status-chip { border: 1px solid var(--line-dark); border-radius: 999px; padding: .45rem .75rem; color: #64646a; font-size: .66rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.article { padding: clamp(3rem, 8vw, 7rem) 0 clamp(5rem, 10vw, 9rem); }
.article__header { max-width: 67rem; }
.article__back { display: inline-block; margin-bottom: 4.5rem; color: #56565b; font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.article__back:hover { color: var(--text-dark); }
.article__header h1 { max-width: 13ch; margin-bottom: 1.5rem; font-size: clamp(3.4rem, 7vw, 6.4rem); }
.article__lead { max-width: 44rem; margin-bottom: 2rem; color: #414146; font-family: var(--font-display); font-size: clamp(1.45rem, 2.4vw, 2rem); line-height: 1.2; }
.article__meta { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; border-top: 1px solid var(--line-dark); padding-top: 1rem; color: #65656b; font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.article__visual { max-width: 67rem; margin: clamp(3rem, 7vw, 5rem) auto 0; overflow: hidden; border-radius: var(--radius-md); }
.article__visual img { width: 100%; height: clamp(20rem, 44vw, 34rem); object-fit: cover; object-position: center 25%; filter: grayscale(1) contrast(1.04); }
.article__body { width: min(calc(100% - 2.5rem), 43rem); margin: clamp(4rem, 8vw, 7rem) auto 0; }
.article__opening { margin-bottom: 3rem; color: #35353a; font-family: var(--font-display); font-size: clamp(1.45rem, 2.4vw, 1.9rem); line-height: 1.3; }
.article__body section { margin: 0 0 3.25rem; }
.article__body h2 { margin-bottom: 1rem; font-size: clamp(2rem, 3vw, 2.65rem); }
.article__body p { color: #3f3f44; font-size: 1.08rem; line-height: 1.85; }
.article-next { padding: clamp(4rem, 8vw, 7rem) 0; }
.article-next a { display: grid; grid-template-columns: 12rem 1fr auto; gap: 2rem; align-items: end; border-bottom: 1px solid var(--line); padding-bottom: 1.5rem; text-decoration: none; }
.article-next a span { color: var(--gray-400); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.article-next a strong { max-width: 14ch; font-family: var(--font-display); font-size: clamp(2.3rem, 4.5vw, 4rem); font-weight: 500; letter-spacing: -.04em; line-height: .98; }
.article-next a i { font-size: 1.4rem; font-style: normal; transition: transform 180ms var(--ease); }
.article-next a:hover i { transform: translate(4px, -4px); }

.catalog-note { display: grid; grid-template-columns: 12rem 1fr; gap: 2rem; margin-bottom: 4rem; border-left: 2px solid var(--text-dark); padding-left: 1.25rem; }
.catalog-visual { margin: 0 auto 3.5rem; overflow: hidden; border-radius: var(--radius-md); }
.catalog-visual img { width: 100%; height: clamp(18rem, 34vw, 29rem); object-fit: cover; object-position: center 30%; filter: grayscale(1) contrast(1.03); }
.catalog-note span { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.catalog-note p { max-width: 48rem; margin: 0; }
.products-grid--catalog .product-card:nth-child(5) { min-height: 25rem; }

.contact-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(20rem, 1fr); gap: clamp(3rem, 9vw, 9rem); }
.contact-grid h2 { font-size: clamp(3rem, 7vw, 6rem); }
.contact-visual img { width: 100%; height: 20rem; margin-top: 2.5rem; border-radius: var(--radius-md); object-fit: cover; object-position: center 28%; filter: grayscale(1) contrast(1.03); }

.sales-hero { padding: clamp(4.5rem, 9vw, 8rem) 0; overflow: hidden; }
.sales-hero__grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(17rem, .55fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.sales-hero h1 { max-width: 11ch; margin-bottom: 1.5rem; }
.sales-hero__lead { max-width: 46rem; color: #b8b8bc; font-size: clamp(1.2rem, 2vw, 1.55rem); }
.course-meta { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1.75rem 0 0; color: var(--gray-400); font-size: .74rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; }
.sales-mark {
  min-height: 28rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: radial-gradient(circle at 65% 32%, #36363a, #111113 48%, #080808 76%);
  padding: 1.5rem;
}
.sales-mark span, .sales-mark small { color: var(--gray-400); font-size: .7rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.sales-mark strong { align-self: center; font-family: var(--font-display); font-size: 8rem; font-weight: 500; line-height: 1; }
.sales-mark small { align-self: flex-end; }
.sales-mark--photo { position: relative; overflow: hidden; background: #111; }
.sales-mark--photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 25%; filter: grayscale(1) contrast(1.06); }
.sales-mark--photo::after { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.48), transparent 38%, rgba(0,0,0,.58)); content: ""; }
.sales-mark--photo span, .sales-mark--photo small { position: relative; z-index: 1; color: var(--paper); }

.check-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line-dark); }
.check-list li { position: relative; border-bottom: 1px solid var(--line-dark); padding: 1.6rem 1rem 1.6rem 2.75rem; }
.check-list li::before { position: absolute; left: .35rem; top: 1.7rem; width: 1.15rem; height: 1.15rem; border: 1px solid var(--text-dark); border-radius: 50%; background: radial-gradient(circle, var(--text-dark) 0 2px, transparent 2.5px); content: ""; }
.learning-outcomes { border-top: 1px solid var(--line); }
.check-list--dark { border-color: var(--line); }
.check-list--dark li { border-color: var(--line); }
.check-list--dark li::before { border-color: var(--paper); background: radial-gradient(circle, var(--paper) 0 2px, transparent 2.5px); }
.pillar-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.pillar { min-height: 24rem; display: flex; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 1.75rem; }
.pillar > span { color: var(--gray-600); font-size: .72rem; font-weight: 700; }
.pillar h3 { margin: auto 0 1rem; }
.pillar p { margin: 0; color: var(--gray-400); font-size: .9rem; }
.curriculum-intro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(16rem, .65fr); gap: 4rem; align-items: end; margin-bottom: 3.5rem; }
.curriculum-intro h2 { max-width: 12ch; margin-bottom: 0; }
.curriculum-intro > p { max-width: 34rem; margin: 0; color: #59595e; }
.curriculum-list { border-top: 1px solid var(--line-dark); }
.curriculum-module { display: grid; grid-template-columns: minmax(16rem, .75fr) minmax(20rem, 1fr); gap: clamp(2rem, 7vw, 7rem); border-bottom: 1px solid var(--line-dark); padding: clamp(2.2rem, 5vw, 4rem) 0; }
.curriculum-module__heading > span { color: #66666b; font-size: .7rem; font-weight: 700; letter-spacing: .11em; text-transform: uppercase; }
.curriculum-module h3 { margin: .7rem 0 1rem; font-size: clamp(1.8rem, 3.2vw, 3rem); }
.curriculum-module__heading p { max-width: 28rem; margin: 0; color: #55555a; }
.curriculum-module ol { display: grid; gap: .85rem; align-content: start; margin: 0; padding: 0; list-style: none; counter-reset: lesson; }
.curriculum-module li { counter-increment: lesson; position: relative; padding: 0 0 .85rem 2.4rem; border-bottom: 1px solid var(--line-dark); color: #414146; font-size: .95rem; }
.curriculum-module li::before { position: absolute; left: 0; color: #747479; content: counter(lesson, decimal-leading-zero); font-size: .68rem; font-weight: 700; letter-spacing: .06em; }
.course-method { border-top: 1px solid var(--line); }
.course-method__grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(25rem, 1.1fr); gap: clamp(3rem, 9vw, 9rem); }
.course-method h2 { max-width: 11ch; }
.course-method__lists { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
.course-method__lists h3 { margin-bottom: 1.25rem; font-size: 1.25rem; }
.course-method__lists ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.course-method__lists li { border-bottom: 1px solid var(--line); padding: 1rem 0; color: var(--gray-400); font-size: .9rem; }
.authority-section__grid { display: grid; grid-template-columns: minmax(17rem, .55fr) minmax(20rem, 1fr); gap: clamp(3rem, 9vw, 9rem); align-items: center; }
.authority-portrait { min-height: 28rem; overflow: hidden; border-radius: var(--radius-md); background: var(--ink-950); }
.authority-portrait img { width: 100%; height: 100%; min-height: 28rem; object-fit: cover; object-position: center 18%; filter: grayscale(1) contrast(1.06); }
.format-note { margin-top: 2.5rem; border-top: 1px solid var(--line-dark); padding-top: 1.5rem; font-size: .95rem; }
.sales-closing__inner { max-width: 55rem; }
.sales-closing h2 { max-width: 13ch; }
.sales-closing p { max-width: 43rem; color: var(--gray-400); }

.not-found { min-height: 70vh; display: grid; align-items: center; padding: 6rem 0; }
.not-found h1 { max-width: 13ch; }
.not-found p { color: var(--gray-400); }
.not-found__image { width: min(100%, 25rem); height: 16rem; margin-top: 3rem; border-radius: var(--radius-md); object-fit: cover; object-position: center 22%; filter: grayscale(1) contrast(1.03); }

.site-footer { border-top: 1px solid var(--line); background: var(--ink-950); color: var(--paper); padding: 5rem 0 1.5rem; }
.site-footer__grid { display: grid; grid-template-columns: 1.3fr .7fr 1fr; gap: 4rem; }
.wordmark--footer { margin-bottom: 2rem; }
.site-footer__statement { max-width: 19rem; color: var(--gray-400); }
.footer-label { margin-bottom: 1.2rem; color: var(--gray-600); font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.footer-links { display: flex; flex-direction: column; align-items: flex-start; gap: .65rem; }
.site-footer__grid > div:last-child > p:last-child { max-width: 26rem; color: var(--gray-400); font-size: .84rem; }
.site-footer__base { display: flex; justify-content: space-between; gap: 2rem; margin-top: 5rem; border-top: 1px solid var(--line); padding-top: 1.5rem; color: var(--gray-600); font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.reveal-ready [data-reveal] { opacity: 0; transform: translateY(.75rem); transition: opacity 500ms var(--ease), transform 500ms var(--ease); }
.reveal-ready [data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 62rem) {
  .nav__links, .header-cta { display: none; }
  .site-header__inner { grid-template-columns: 1fr auto; }
  .mobile-menu { position: relative; display: block; }
  .mobile-menu summary { min-height: 2.75rem; display: grid; place-items: center; cursor: pointer; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .45rem .8rem; font-size: .75rem; font-weight: 700; letter-spacing: .08em; list-style: none; text-transform: uppercase; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu__panel { position: absolute; right: 0; top: calc(100% + .6rem); width: min(20rem, calc(100vw - 2.5rem)); border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--ink-900); padding: .75rem; box-shadow: 0 1rem 3rem rgba(0,0,0,.35); }
  .mobile-menu__links { display: flex; flex-direction: column; }
  .mobile-menu__links a { border-bottom: 1px solid var(--line); padding: .9rem; }
  .mobile-menu__links a:last-child { border-bottom: 0; }
  .hero__grid, .sales-hero__grid { grid-template-columns: 1fr; }
  .hero-art, .sales-mark { min-height: 22rem; }
  .pillar-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 46rem) {
  body { font-size: 1.0625rem; }
  .container { width: min(calc(100% - 2.5rem), var(--content)); }
  .hero { padding-top: 3.5rem; }
  .hero h1 { font-size: clamp(2.75rem, 13vw, 4rem); }
  .credibility { grid-template-columns: 1fr; }
  .credibility li { min-height: 7.5rem; border-right: 0; border-bottom: 1px solid var(--line); padding-inline: 0; }
  .credibility li:last-child { border-bottom: 0; }
  .statement__grid, .page-intro__grid, .split-layout, .section-heading, .narrative__grid, .library-intro, .contact-grid, .authority-section__grid, .curriculum-intro, .curriculum-module, .course-method__grid { grid-template-columns: 1fr; }
  .statement__grid, .page-intro__grid { gap: 1rem; }
  .statement blockquote p { font-size: clamp(2.5rem, 12vw, 4rem); }
  .products-grid { grid-template-columns: 1fr; }
  .product-card, .product-card:nth-child(5) { grid-column: auto; min-height: 22rem; }
  .message-row { grid-template-columns: 2.25rem 1fr 1.25rem; gap: 1rem; }
  .message-row > p { grid-column: 2 / -1; }
  .message-row__arrow { grid-column: 3; grid-row: 1; }
  .portrait-panel { position: relative; top: auto; min-height: 28rem; }
  .content-card { grid-template-columns: 2.5rem 1fr; gap: 1rem; }
  .content-card__image { grid-column: 2; width: 100%; height: 12rem; }
  .content-card .status-chip { grid-column: 2; justify-self: start; }
  .article__back { margin-bottom: 3rem; }
  .article__body { width: min(calc(100% - 2.5rem), 43rem); }
  .article-next a { grid-template-columns: 1fr auto; gap: 1rem; }
  .article-next a span { grid-column: 1 / -1; }
  .catalog-note { grid-template-columns: 1fr; }
  .pillar-grid { grid-template-columns: 1fr; }
  .pillar { min-height: 19rem; }
  .course-method__lists { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 3rem; }
  .site-footer__base { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .reveal-ready [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  .site-header, .site-footer, .button-row, .button { display: none !important; }
  body, .section-dark, .section-paper { background: #fff; color: #000; }
  main { display: block; }
}