:root {
  --canvas: #f4efe6;
  --ink: #302c27;
  --accent: #5f2b30;
  --muted: #6d675f;

--hisc: #b56f2c;
--hiobs: #1d1d1b;
--hiff: #8f895c;

  --serif: Georgia, "Times New Roman", serif;
  --sans: Arial, Helvetica, sans-serif;

  --max-width: 1180px;
}


/* ---------- Base ---------- */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.6;
}

a {
  color: inherit;
}


/* ---------- Home ---------- */

.home {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 72px 112px;
}


/* ---------- Threshold ---------- */

.threshold {
  min-height: 82vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 0;
}

.threshold h1 {
  margin: 0 0 64px;
  font-family: var(--sans);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.home-intro {
  max-width: 780px;
}

.home .threshold h1 {
  margin: 0 0 52px;
  font-family: var(--serif);
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: 0.95;
  font-weight: 500;
  letter-spacing: -0.035em;
}

.home-intro strong {
  font-weight: 600;
}


/* ---------- Triad ---------- */

.triad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
  padding: 96px 0 64px;
}

.territory {
  padding-top: 24px;
  border-top: 3px solid var(--ink);
}

.territory:nth-child(1) {
  border-color: var(--hisc);
}

.territory:nth-child(2) {
  border-color: var(--hiobs);
}

.territory:nth-child(3) {
  border-color: var(--hiff);
}
.territory:nth-child(1) h2 {
  color: var(--hisc);
}

.territory:nth-child(2) h2 {
  color: var(--hiobs);
}

.territory:nth-child(3) h2 {
  color: var(--hiff);
}
.territory h2 {
  margin: 0 0 10px;
  font-family: var(--sans);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  font-weight: 600;
}

.territory h3 {
  margin: 0 0 24px;
  font-size: 1.45rem;
  line-height: 1.25;
  font-weight: 500;
}

.territory p {
  margin: 0 0 32px;
  max-width: 31rem;
  font-size: 1rem;
  line-height: 1.7;
}

.territory a {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  text-decoration: none;
  padding-bottom: 5px;
  border-bottom: 1px solid currentColor;
  transition: opacity 180ms ease;
}

.territory a:hover {
  opacity: 0.55;
}


/* ---------- Mobile ---------- */

@media (max-width: 800px) {

  .home {
    padding: 0 24px 56px;
  }

  .threshold {
    min-height: auto;
    padding: 96px 0 88px;
  }

  .threshold h1 {
    margin-bottom: 48px;
  }

  .home-intro p {
    font-size: clamp(1.55rem, 7vw, 2.2rem);
  }

  .triad {
    grid-template-columns: 1fr;
    gap: 64px;
    padding-top: 64px;
  }

}
/* =========================================================
   HISC — HUMAN INC.: STRUCTURAL COHERENCE
   Prototype
   ========================================================= */

.hisc-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 72px 112px;
}


/* ---------- Header ---------- */

.page-header {
  min-height: 82vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0 0 112px;
}
}

.back-home {
  align-self: flex-start;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-decoration: none;
}

.book-heading {
  max-width: 700px;
  margin-top: 96px;
}

.territory-label {
  margin: 0 0 22px;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--hisc);
}

.book-heading h1 {
  margin: 0 0 28px;
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  line-height: 0.98;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.book-status {
  margin: 0 0 16px;
  font-size: 1rem;
  font-style: italic;
}

.book-foundation {
  max-width: 620px;
  margin: 0 0 34px;
  font-size: 1.15rem;
  line-height: 1.65;
}

.preorder-link {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 5px;
}


/* ---------- Explore the Book ---------- */

.book-experience {
  border-top: 1px solid rgba(38, 35, 31, 0.22);
  padding-top: 88px;
}

.experience-intro {
  max-width: 670px;
  margin-bottom: 104px;
}

.experience-intro h2 {
  margin: 0 0 28px;
  font-size: 2.2rem;
  font-weight: 500;
}

.experience-intro p {
  margin: 0 0 18px;
  font-size: 1.05rem;
  line-height: 1.75;
}


/* ---------- Arcs ---------- */

.book-arc {
  margin-bottom: 112px;
}

.arc-title {
  margin: 0 0 40px;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hisc);
}


/* ---------- Chapters ---------- */

.chapter {
  border-top: 1px solid rgba(38, 35, 31, 0.2);
}

.chapter:last-child {
  border-bottom: 1px solid rgba(38, 35, 31, 0.2);
}

.chapter summary {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 24px 0;
  cursor: pointer;
  list-style: none;

  font-size: 1.35rem;
  line-height: 1.3;
}

.chapter summary::-webkit-details-marker {
  display: none;
}

.chapter summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 400;
}

.chapter[open] summary::after {
  content: "−";
}

.chapter-number {
  min-width: 34px;
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}


/* ---------- Excerpts ---------- */

.chapter-excerpt {
  max-width: 700px;
  padding: 12px 0 54px 48px;
}

.chapter-excerpt p {
  margin: 0 0 26px;
  font-size: 1.08rem;
  line-height: 1.8;
}

.chapter-excerpt p:last-child {
  margin-bottom: 0;
}


/* ---------- Corpus ---------- */

.corpus-chapters {
  border-top: 1px solid rgba(38, 35, 31, 0.2);
}

.corpus-chapters p {
  margin: 0;
  padding: 20px 0;
  border-bottom: 1px solid rgba(38, 35, 31, 0.2);

  font-size: 1.1rem;
  line-height: 1.45;
}

.corpus-chapters span {
  display: inline-block;
  width: 38px;
  font-family: var(--sans);
  font-size: 0.72rem;
  color: var(--muted);
}


/* ---------- Chapter 19 ---------- */

.chapter-closed {
  padding: 24px 0;
}

.closed-title {
  display: flex;
  gap: 14px;
  align-items: baseline;

  font-size: 1.35rem;
  line-height: 1.3;
}


/* ---------- Return ---------- */

.book-return {
  display: flex;
  justify-content: space-between;
  align-items: center;

  border-top: 1px solid rgba(38, 35, 31, 0.22);
  padding-top: 36px;
  margin-top: 40px;
}

.book-return > a:first-child {
  font-family: var(--sans);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-decoration: none;
}


/* ---------- HISC Mobile ---------- */

@media (max-width: 800px) {

  .hisc-page {
    padding: 0 24px 64px;
  }

  .page-header {
    min-height: auto;
    padding: 36px 0 96px;
  }

  .book-heading {
    margin-top: 104px;
  }

  .book-heading h1 {
    font-size: clamp(2.5rem, 12vw, 3.8rem);
  }

  .book-experience {
    padding-top: 64px;
  }

  .experience-intro {
    margin-bottom: 80px;
  }

  .book-arc {
    margin-bottom: 88px;
  }

  .chapter summary,
  .closed-title {
    font-size: 1.15rem;
  }

  .chapter-excerpt {
    padding: 10px 0 44px;
  }

  .chapter-excerpt p {
    font-size: 1rem;
  }

  .book-return {
    align-items: flex-start;
    gap: 28px;
  }

}
/* =========================================================
   HIOBS — PROTOTYPE
   ========================================================= */

.hiobs-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 72px 112px;
}


/* ---------- Header ---------- */

.hiobs-header {
  padding-bottom: 88px;
}

.hiobs-heading {
  max-width: 680px;
  margin-top: 96px;
}

.hiobs-label {
  color: var(--hiobs);
}

.hiobs-heading h1 {
  margin: 0 0 28px;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.hiobs-intro {
  max-width: 600px;
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.7;
}


/* ---------- Observe By ---------- */

.observation-field {
  border-top: 1px solid rgba(38, 35, 31, 0.2);
  padding-top: 48px;
}

.observe-control {
  display: flex;
  align-items: baseline;
  gap: 28px;
  margin-bottom: 44px;
}

.observe-label {
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.observe-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
}

.observe-mode {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.observe-mode.active {
  color: var(--ink);
  border-bottom: 1px solid currentColor;
}


/* ---------- Selector ---------- */

.hiobs-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-bottom: 56px;
}

.hiobs-selector-button {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 4px 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.78rem;
  cursor: pointer;
}

.hiobs-selector-button.active {
  color: var(--ink);
  border-bottom: 1px solid currentColor;
}


/* ---------- HIOBS System Chromatic Identities ---------- */

:root {

  --nervous-bg: #e7decf;
  --nervous-text: #55524c;

  --circulatory-bg: #640301;
  --circulatory-text: #f0e4dd;

  --digestive-bg: #834019;
  --digestive-text: #ead6b8;

  --muscular-bg: #700303;
  --muscular-text: #dfc2b3;

  --respiratory-bg: #d0c6df;
  --respiratory-text: #59577e;

  --sensory-bg: #000000;
  --sensory-text: #f3e6cc;

  --integumentary-bg: #ecb488;
  --integumentary-text: #68452e;

  --immune-bg: #fdfdfd;
  --immune-text: #4d7888;

  --skeletal-bg: #f7eee5;
  --skeletal-text: #814e4e;

  --lymphatic-bg: #eff5f5;
  --lymphatic-text: #70757a;

  --endocrine-bg: #a56c02;
  --endocrine-text: #ead8ab;

  --reproductive-bg: #460822;
  --reproductive-text: #d49aaa;
}


/* ---------- System Assignment ---------- */

.observation-card.system-nervous {
  background: var(--nervous-bg);
  color: var(--nervous-text);
}

.observation-card.system-circulatory {
  background: var(--circulatory-bg);
  color: var(--circulatory-text);
}

.observation-card.system-digestive {
  background: var(--digestive-bg);
  color: var(--digestive-text);
}

.observation-card.system-muscular {
  background: var(--muscular-bg);
  color: var(--muscular-text);
}

.observation-card.system-respiratory {
  background: var(--respiratory-bg);
  color: var(--respiratory-text);
}

.observation-card.system-sensory {
  background: var(--sensory-bg);
  color: var(--sensory-text);
}

.observation-card.system-integumentary {
  background: var(--integumentary-bg);
  color: var(--integumentary-text);
}

.observation-card.system-immune {
  background: var(--immune-bg);
  color: var(--immune-text);
}

.observation-card.system-skeletal {
  background: var(--skeletal-bg);
  color: var(--skeletal-text);
}

.observation-card.system-lymphatic {
  background: var(--lymphatic-bg);
  color: var(--lymphatic-text);
}

.observation-card.system-endocrine {
  background: var(--endocrine-bg);
  color: var(--endocrine-text);
}

.observation-card.system-reproductive {
  background: var(--reproductive-bg);
  color: var(--reproductive-text);
}

/* ---------- Grid ---------- */

.hiobs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: start;
}

.observation-card {
  background: var(--card-bg);
  color: var(--card-text);
 height: 150px;
  border-radius: 14px;
  overflow: hidden;
}

.observation-card.open {
  height: 850px;
}

.system-nervous       { border-color: var(--system-nervous); }
.system-circulatory   { border-color: var(--system-circulatory); }
.system-digestive     { border-color: var(--system-digestive); }
.system-muscular      { border-color: var(--system-muscular); }
.system-respiratory   { border-color: var(--system-respiratory); }
.system-sensory       { border-color: var(--system-sensory); }
.system-integumentary { border-color: var(--system-integumentary); }
.system-immune        { border-color: var(--system-immune); }
.system-skeletal      { border-color: var(--system-skeletal); }
.system-lymphatic     { border-color: var(--system-lymphatic); }
.system-endocrine     { border-color: var(--system-endocrine); }
.system-reproductive  { border-color: var(--system-reproductive); }


/* ---------- Card ---------- */

.observation-card-trigger {
  width: 100%;
  min-height: 145px;
  border: 0;
  background: transparent;
  padding: 22px;
  text-align: left;
  color: inherit;
  cursor: pointer;

  display: flex;
  flex-direction: column;
}

.observation-card-heading {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.observation-system {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.observation-function {
  font-family: var(--sans);
  font-size: 0.7rem;
 color: inherit;
opacity: 0.72;
}

.observation-subject {
  margin-top: auto;
  padding-top: 34px;

  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-transform: uppercase;

  opacity: 0.78;
}

.observation-card-body {
  display: none;
  padding: 4px 22px 30px;
}

.observation-card.open .observation-card-body {
  display: block;
}

.observation-card-body p {
  margin: 0;
  white-space: pre-line;
  font-size: 1rem;
  line-height: 1.7;
}


/* ---------- Return ---------- */

.hiobs-return {
  margin-top: 96px;
  padding-top: 30px;
  border-top: 1px solid rgba(38, 35, 31, 0.2);
}

.hiobs-return a {
  font-family: var(--sans);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-decoration: none;
}


/* ---------- HIOBS Mobile ---------- */

@media (max-width: 800px) {

  .hiobs-page {
    padding: 36px 24px 72px;
  }

  .hiobs-heading {
    margin-top: 80px;
  }

  .hiobs-header {
    padding-bottom: 64px;
  }

  .observe-control {
    flex-direction: column;
    gap: 12px;
  }

  .hiobs-grid {
    grid-template-columns: 1fr;
  }

}

/* =========================================================
   HUMAN INC. TERRITORY NAVIGATION
   ========================================================= */

.territory-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;

  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.13em;
}
.territory-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms ease,
              opacity 180ms ease;

  margin-right: 34px;
}
.territory-nav a:last-child {
  margin-right: 0;
}
.territory-nav a:first-child {
  color: var(--ink);
  margin-right: 52px;
}

.territory-nav a.active {
  color: var(--ink);
  border-bottom: 1px solid currentColor;
  padding-bottom: 4px;
}

.territory-nav a:hover {
  color: var(--ink);
}


/* ---------- Mobile ---------- */

@media (max-width: 800px) {

  .territory-nav {
    gap: 16px 20px;
    font-size: 0.68rem;
  }

}
/* =========================================================
   TERRITORY FOOTER
   ========================================================= */

.territory-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;

  margin-top: 96px;
  padding-top: 34px;
  border-top: 1px solid rgba(38, 35, 31, 0.2);
}

.footer-nav {
  flex: 1;
}

.territory-action {
  flex-shrink: 0;

  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.13em;

  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 5px;
}

@media (max-width: 800px) {

  .territory-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }

}
/* =========================================================
   TERRITORY TOP BAR
   ========================================================= */

.territory-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;
}

.territory-topbar .territory-nav {
  flex: 1;
}

@media (max-width: 800px) {

  .territory-topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

}

/* =========================================================
   HOME THRESHOLD
   ========================================================= */

.home .threshold {
  min-height: 58vh;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  text-align: center;
}

.home .threshold h1 {
  margin: 0 0 34px;

  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: 0.95;
  font-weight: 500;
  letter-spacing: -0.035em;
}

.home .home-intro {
  max-width: 760px;
  margin: 0 auto;
}

.home .home-intro p {
  margin: 0 0 1.35rem;

  font-size: clamp(1.25rem, 2vw, 1.9rem);
  line-height: 1.35;
}

@media (max-width: 800px) {

  .home .threshold {
    min-height: 70vh;
  }

  .home .threshold h1 {
    margin-bottom: 38px;
  }

}

/* =========================================================
   HUMAN INC. LINEN FIELD
   ========================================================= */

body {
  background-color: var(--canvas);

  background-image:

    /* fine horizontal fibers */
    repeating-linear-gradient(
      0deg,
      rgba(106, 88, 68, 0.020) 0px,
      rgba(106, 88, 68, 0.020) 1px,
      transparent 1px,
      transparent 4px,
      rgba(106, 88, 68, 0.012) 4px,
      rgba(106, 88, 68, 0.012) 5px,
      transparent 5px,
      transparent 9px
    ),

    /* fine vertical fibers */
    repeating-linear-gradient(
      90deg,
      rgba(106, 88, 68, 0.017) 0px,
      rgba(106, 88, 68, 0.017) 1px,
      transparent 1px,
      transparent 5px,
      rgba(106, 88, 68, 0.010) 5px,
      rgba(106, 88, 68, 0.010) 6px,
      transparent 6px,
      transparent 11px
    ),

    /* slight irregularity so it does not read as a grid */
    repeating-linear-gradient(
      2deg,
      transparent 0px,
      transparent 15px,
      rgba(125, 103, 78, 0.010) 15px,
      rgba(125, 103, 78, 0.010) 16px,
      transparent 16px,
      transparent 31px
    );
}
/* =========================================================
   HIFF
   ========================================================= */

.hiff-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 72px 112px;
}

.hiff-heading {
  max-width: 760px;
  margin-top: 96px;
}

.hiff-heading h1 {
  margin: 0 0 42px;
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.hiff-heading h2 {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.8vw, 2.4rem);
  line-height: 1.2;
  font-weight: 500;
}

.hiff-intro {
  max-width: 650px;
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.7;
}

.hiff-offer {
  border-top: 1px solid rgba(38, 35, 31, 0.2);
  padding-top: 72px;
}

.hiff-offer h2 {
  max-width: 680px;
  margin: 0 0 34px;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.12;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.hiff-formats {
  margin: 0 0 44px;
  font-family: var(--sans);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.13em;
}

@media (max-width: 800px) {

  .hiff-page {
    padding: 36px 24px 72px;
  }

  .hiff-heading {
    margin-top: 80px;
  }

  .hiff-offer {
    padding-top: 52px;
  }

}

/* =========================================================
   HIFF ACTIONS + SERVICES
   ========================================================= */

.hiff-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 36px;
}

.hiff-primary-action,
.hiff-secondary-action,
.service-book {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-decoration: none;
  color: var(--ink);
}

.hiff-primary-action {
  border: 1px solid currentColor;
  padding: 13px 18px;
}

.hiff-secondary-action,
.service-book {
  border-bottom: 1px solid currentColor;
  padding-bottom: 5px;
}


/* ---------- Services ---------- */

.hiff-services {
  border-top: 1px solid rgba(38, 35, 31, 0.2);
  padding-top: 42px;
}

.hiff-services > h2 {
  margin: 0 0 32px;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.15;
  font-weight: 500;
}

.hiff-service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: start;
}

.hiff-service {
  border: 1px solid rgba(38, 35, 31, 0.22);
  border-radius: 14px;
  overflow: hidden;
}

.hiff-service summary {
  min-height: 92px;
  padding: 24px;

  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;

  cursor: pointer;
  list-style: none;

  font-family: var(--sans);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.11em;
}

.hiff-service summary::-webkit-details-marker {
  display: none;
}

.service-symbol {
  font-size: 1rem;
  font-weight: 400;
}

.hiff-service[open] .service-symbol {
  transform: rotate(45deg);
}

.hiff-service-body {
  padding: 0 24px 28px;
}

.hiff-service-body p {
  margin: 0 0 20px;
  font-size: 1rem;
  line-height: 1.65;
}

.service-audience {
  font-family: var(--sans);
  font-size: 0.72rem !important;
  line-height: 1.5 !important;
  letter-spacing: 0.05em;
  opacity: 0.72;
}

.service-book {
  display: inline-block;
  margin-top: 8px;
}


/* ---------- Mobile ---------- */

@media (max-width: 800px) {

  .hiff-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .hiff-service-grid {
    grid-template-columns: 1fr;
  }

}

/* =========================================================
   HIFF FIRST SCREEN — COMPACT
   ========================================================= */

.hiff-page .page-header {
  min-height: auto;
  padding: 0 0 48px;
}

.hiff-heading {
  margin-top: 64px;
}

.hiff-heading h1 {
  margin-bottom: 28px;
}

.hiff-heading h2 {
  margin-bottom: 16px;
}

.hiff-actions {
  margin-top: 26px;
}

.hiff-services {
  padding-top: 30px;
}

.hiff-services > h2 {
  margin-bottom: 24px;
  font-size: clamp(1.5rem, 2.4vw, 2.2rem);
}

.hiff-service summary {
  min-height: 78px;
  padding: 20px 22px;
}

/* =========================================================
   HIFF FIRST SCREEN — TIGHTER
   ========================================================= */

.hiff-page .page-header {
  min-height: auto;
  padding: 0 0 28px;
}

.hiff-heading {
  margin-top: 36px;
}

.hiff-heading h1 {
  margin-bottom: 20px;
  font-size: clamp(2.5rem, 4.4vw, 4rem);
}

.hiff-heading h2 {
  margin-bottom: 12px;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
}

.hiff-intro {
  line-height: 1.55;
}

.hiff-actions {
  margin-top: 18px;
}

.hiff-services {
  padding-top: 22px;
}

.hiff-services > h2 {
  margin-bottom: 18px;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

.hiff-service summary {
  min-height: 66px;
  padding: 16px 20px;
}

/* =========================================================
   HUMAN INC. STRUCTURAL ACCENT — TEST
   ========================================================= */

/* Primary outlined actions */
.territory-action,
.hiff-primary-action {
  border-color: var(--accent);
  color: var(--accent);
}

/* HIFF service structure */
.hiff-service {
  border-color: var(--accent);
}

.hiff-services {
  border-top-color: var(--accent);
}

.service-symbol,
.service-book {
  color: var(--accent);
}

/* Shared footer rule */
.territory-footer {
  border-top-color: var(--accent);
}

/* HISC expandable structure */
.book-arc,
.chapter-detail {
  border-color: var(--accent);
}

/* =========================================================
   CONTACT
   ========================================================= */

.contact-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 72px 112px;
}

.contact-heading {
  max-width: 700px;
  margin-top: 96px;
  margin-bottom: 72px;
}

.contact-heading h1 {
  margin: 0 0 28px;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 4.8rem);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.contact-heading p {
  max-width: 610px;
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.65;
}


/* ---------- Form ---------- */

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 34px 28px;
  max-width: 850px;
}

.contact-field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-field-wide {
  grid-column: 1 / -1;
}

.contact-field label {
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.optional {
  margin-left: 8px;
  font-weight: 400;
  opacity: 0.55;
}

.contact-field input,
.contact-field select,
.contact-field textarea {
  width: 100%;
  box-sizing: border-box;

  border: 0;
  border-bottom: 1px solid rgba(95, 43, 48, 0.5);

  padding: 12px 0;

  background: transparent;

  color: var(--ink);

  font-family: inherit;
  font-size: 1rem;

  outline: none;
}

.contact-field textarea {
  resize: vertical;
  min-height: 150px;
}

.contact-field input:focus,
.contact-field select:focus,
.contact-field textarea:focus {
  border-bottom-color: var(--accent);
}

.contact-submit {
  grid-column: 1 / -1;
  margin-top: 12px;
}

.contact-submit button {
  padding: 13px 22px;

  border: 1px solid var(--accent);

  background: transparent;
  color: var(--accent);

  font-family: inherit;
  font-size: 0.74rem;
  font-weight: 600;

  letter-spacing: 0.13em;

  cursor: pointer;
}

.contact-submit button:hover {
  background: var(--accent);
  color: var(--canvas);
}


/* ---------- Mobile ---------- */

@media (max-width: 800px) {

  .contact-page {
    padding: 36px 24px 72px;
  }

  .contact-heading {
    margin-top: 64px;
    margin-bottom: 52px;
  }

  .contact-form {
    grid-template-columns: 1fr;
  }

  .contact-field-wide,
  .contact-submit {
    grid-column: auto;
  }

}

/* =========================================================
   CONTACT — HEADER SPACING FIX
   ========================================================= */

.contact-page .page-header {
  min-height: auto;
  padding-bottom: 0;
}

.contact-heading {
  margin-top: 48px;
}


/* =========================================================
   HISC FIRST VIEWPORT — BRING BOOK INTO VIEW
   ========================================================= */

.hisc-page .book-heading {
  margin-top: 64px;
  margin-bottom: 42px;
}

/* ---------- Contact interest ---------- */

.contact-interest {
  grid-column: 1 / -1;
  align-items: center;
  text-align: center;
}

.contact-interest select {
  width: min(420px, 100%);
  text-align: center;
  text-align-last: center;
}

/* =========================================================
   CONTACT — SUCCESS
   ========================================================= */

.contact-success {
  max-width: 720px;
  padding: 54px 0;
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
}

.contact-success h2 {
  margin: 0 0 24px;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.1;
  font-weight: 500;
}

.contact-success p {
  max-width: 620px;
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.7;
}

/* =========================================================
   LEGAL FOOTER — QUIET
   ========================================================= */

.legal-footer {
  margin-top: 18px;
  padding-top: 12px;

  display: flex;
  align-items: center;
  gap: 26px;

  font-size: 0.58rem;
  line-height: 1.4;
  letter-spacing: 0.02em;

  color: var(--muted);
  opacity: 0.72;
}

.legal-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.legal-nav a {
  color: inherit;
  text-decoration: none;
}

.legal-nav a + a::before {
  content: "·";
  margin-right: 14px;
}

.legal-nav a:hover {
  color: var(--accent);
}

@media (max-width: 800px) {

  .legal-footer {
    flex-wrap: wrap;
    gap: 8px 18px;
  }

  .legal-nav {
    flex-wrap: wrap;
  }

}

/* =========================================================
   LEGAL PAGE
   ========================================================= */

.legal-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 72px 112px;
}

.legal-heading {
  max-width: 760px;
  margin-top: 96px;
  margin-bottom: 92px;
}

.legal-heading h1 {
  margin: 0 0 24px;

  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 4.8rem);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.legal-heading > p {
  max-width: 620px;
  margin: 0 0 34px;

  font-size: 1.12rem;
  line-height: 1.65;
}

.legal-index {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
}

.legal-index a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(95, 43, 48, 0.38);
  padding-bottom: 4px;
}


/* ---------- Sections ---------- */

.legal-section {
  max-width: 760px;

  padding-top: 72px;
  margin-bottom: 92px;

  border-top: 1px solid rgba(95, 43, 48, 0.32);

  scroll-margin-top: 48px;
}

.legal-section h2 {
  margin: 0 0 10px;

  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.1;
  font-weight: 500;
}

.legal-date {
  margin: 0 0 38px !important;

  color: var(--muted);

  font-size: 0.72rem !important;
  letter-spacing: 0.05em;
}

.legal-section h3 {
  margin: 44px 0 14px;

  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.3;
  font-weight: 500;
}

.legal-section p {
  margin: 0 0 20px;

  font-size: 1rem;
  line-height: 1.75;
}

.legal-section a {
  color: var(--accent);
}


/* ---------- Mobile ---------- */

@media (max-width: 800px) {

  .legal-page {
    padding: 36px 24px 72px;
  }

  .legal-heading {
    margin-top: 64px;
    margin-bottom: 64px;
  }

  .legal-index {
    flex-direction: column;
    align-items: flex-start;
  }

  .legal-section {
    padding-top: 52px;
    margin-bottom: 68px;
  }

}

/* =========================================================
   HIOBS — HOVER RESPONSE
   ========================================================= */

@media (hover: hover) {

  .observation-card {
    transition:
      transform 180ms ease,
      box-shadow 180ms ease,
      filter 180ms ease;
  }

  .observation-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow:
      0 10px 24px rgba(48, 44, 39, 0.12),
      0 0 0 1px currentColor;
    filter: brightness(1.025);
    cursor: pointer;
  }

}

/* =========================================================
   ABOUT HUMAN INC.
   ========================================================= */

.about-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 72px 112px;
}


/* ---------- Origin ---------- */

.about-origin {
  margin-top: 88px;
  padding-bottom: 54px;
  border-bottom: 1px solid rgba(95, 43, 48, 0.22);
}

.about-origin h1 {
  max-width: 820px;
  margin: 0 0 38px;
  font-family: var(--serif);
  font-size: clamp(3rem, 6vw, 5.4rem);
  line-height: 0.98;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.about-origin-copy {
  max-width: 1040px;
}

.about-origin-copy p {
  margin: 0 0 22px;
  font-size: 1.08rem;
  line-height: 1.7;
}

.about-origin-copy p:last-child {
  margin-bottom: 0;
}


/* ---------- Founder ---------- */

.about-founder {
  display: grid;
  grid-template-columns:
    minmax(0, 0.95fr)
    minmax(0, 1.05fr);
  gap: 54px;
  align-items: start;
  padding-top: 36px;
}

.about-founder-photo {
  min-width: 0;
}

.about-founder-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 6 / 5;
  object-fit: cover;
  object-position: center 46%;
}

.about-founder-copy {
  padding-top: 4px;
}

.about-founder-copy h2 {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  line-height: 1;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.about-founder-copy p {
  margin: 0 0 22px;
  font-size: 1.08rem;
  line-height: 1.7;
}

.about-founder-copy p:last-child {
  margin-bottom: 0;
}


/* ---------- About Mobile ---------- */

@media (max-width: 800px) {

  .about-page {
    padding: 36px 24px 72px;
  }

  .about-origin {
    margin-top: 72px;
    padding-bottom: 48px;
  }

  .about-origin h1 {
    margin-bottom: 32px;
    font-size: clamp(2.8rem, 13vw, 4rem);
  }

  .about-origin-copy p,
  .about-founder-copy p {
    font-size: 1rem;
  }

  .about-founder {
    grid-template-columns: 1fr;
    gap: 42px;
    padding-top: 34px;
  }

  .about-founder-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 6 / 5;
  object-fit: cover;
  object-position: center 46%;
  border-radius: 18px;
}
  .about-founder-copy {
    padding-top: 0;
  }

}