/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, p, figure, blockquote, dl, dd { margin: 0; }
body { min-height: 100vh; }
img, picture { max-width: 100%; display: block; }
input, button, textarea, select { font: inherit; }

/* ===== Design tokens (PRD §3 — do not substitute) ===== */
:root {
  --paper:       #F6F2EA;
  --ink:         #1E2429;
  --ink-soft:    #4A5258;
  --accent:      #2E5D4F;
  --accent-dark: #24493E;
  --accent-tint: #9FE1CB;
  --line:        #D8D1C4;
  --tag-bg:      #EDE7DA;

  /* Spacing scale (8px base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;
  --space-11: 160px;

  /* Section padding — overridden per breakpoint */
  --section-padding: var(--space-10);
  --container-max: 1100px;
  --container-gutter: var(--space-6);
  --ease-ledger: cubic-bezier(0.22, 1, 0.36, 1);
  --reveal-duration: 420ms;
  --ledger-duration: 520ms;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Public Sans', sans-serif;
  font-size: 17px;
  line-height: 1.6;
}

@media (min-width: 768px) {
  :root { --section-padding: var(--space-9); }
}
@media (min-width: 1024px) {
  :root { --section-padding: var(--space-10); --container-gutter: var(--space-6); }
}

h1, h2, h3 {
  font-family: 'Newsreader', serif;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}

h1 { font-size: 40px; line-height: 1.15; }
h2 { font-size: 28px; line-height: 1.2; }
h3 { font-size: 22px; line-height: 1.3; }

@media (min-width: 1024px) {
  h1 { font-size: 56px; }
  h2 { font-size: 36px; }
}

.eyebrow {
  font-family: 'Public Sans', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-4);
}

small, .small {
  font-size: 14px;
  color: var(--ink-soft);
}

.measure { max-width: 65ch; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-gutter);
}

.media-frame {
  max-width: min(100%, 920px);
  margin-block: var(--space-7);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(30, 36, 41, 0.08);
  overflow: hidden;
  background: var(--paper);
}
.media-frame img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== Ledger-rule motif =====
   Hairline with an accent segment occupying the rightmost quarter (~3:1). */
.ledger-rule {
  position: relative;
  overflow: hidden;
  height: 1px;
  width: 100%;
  background: transparent;
}
.ledger-rule::before,
.ledger-rule::after {
  content: "";
  position: absolute;
  inset-block: 0;
  transform: scaleX(1);
}
.ledger-rule::before {
  inset-inline: 0;
  background: var(--line);
  transform-origin: left;
}
.ledger-rule::after {
  inset-inline: auto 0;
  width: 25%;
  background: var(--accent);
  transform-origin: left;
}

.section__rule {
  max-width: 240px;
  margin-bottom: var(--space-6);
}

/* ===== Section rhythm and dividers ===== */
.section {
  padding-block: var(--section-padding);
  border-top: 1px solid var(--line);
}
.section:first-of-type { border-top: none; }

.section .eyebrow + h2 { margin-top: 0; }
.section h2 { margin-bottom: var(--space-5); }
.section h2 + p, .section h2 + .measure { margin-bottom: var(--space-7); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent-dark);
  color: var(--paper);
  padding: var(--space-3) var(--space-5);
  z-index: 100;
}
.skip-link:focus {
  left: var(--space-4);
  top: var(--space-4);
}

:focus-visible {
  outline: 2px solid var(--accent-dark);
  outline-offset: 2px;
}

/* ===== Navigation ===== */
.nav {
  position: sticky;
  top: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  z-index: 50;
}
.nav__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}
.nav__brand img { width: 92px; height: auto; }

.button {
  display: inline-block;
  font-family: 'Public Sans', sans-serif;
  font-weight: 500;
  font-size: 16px;
  padding: var(--space-3) var(--space-5);
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
}
.button--primary {
  background: var(--accent);
  color: var(--paper);
  border: 1px solid var(--accent);
}
.button--primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  padding: 0;
}
.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-6);
}
.nav__links a:not(.button) {
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
}
.nav__links a:not(.button):hover { color: var(--accent-dark); }

.nav__links.is-open {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: var(--space-5) var(--space-6);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .nav__toggle { display: none; }
  .nav__links {
    display: flex;
    position: static;
    border-bottom: none;
    padding: 0;
    background: none;
  }
}

/* ===== Hero ===== */
.hero {
  min-height: calc(100vh - 73px);
  min-height: calc(100svh - 73px);
  display: flex;
  align-items: center;
}
.hero .container {
  padding-block: var(--space-8);
}
.hero h1 {
  max-width: 12ch;
}
.hero__subhead {
  font-size: 18px;
  margin-block: var(--space-6) var(--space-6);
}
.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}
.hero__secondary-link {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.hero__secondary-link:hover { color: var(--accent-dark); }
.hero__caption { font-style: italic; }

@media (min-width: 1024px) {
  .hero__subhead { font-size: 19px; }
}

/* ===== Problem: Question Chips ===== */
.question-chips {
  list-style: none;
  padding: 0;
  margin: var(--space-7) 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-5);
}
.question-chip {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: var(--space-5);
  font-size: 16px;
  line-height: 1.5;
}
.question-chip span {
  font-family: 'Newsreader', serif;
  color: var(--ink-soft);
  font-size: 28px;
  line-height: 0;
  display: inline-block;
  margin-right: var(--space-1);
  vertical-align: -6px;
}
.problem__closing { margin-top: var(--space-6); font-weight: 500; }

/* ===== Audit: Three Summary Cards ===== */
.section--audit {
  background: var(--paper);
}
.audit__container {
  max-width: 1180px;
}
.section--audit .measure {
  max-width: 58ch;
}
.audit-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin: var(--space-7) 0;
}
.audit-card {
  border-top: 1px solid var(--line);
  padding-top: var(--space-5);
}
.audit-card__icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  margin-bottom: var(--space-4);
}
.audit-card__icon svg { width: 22px; height: 22px; }
.audit-card__icon--accent { color: var(--accent); }
.audit-card__label {
  font-family: 'Public Sans', sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: var(--space-2);
}
.audit-card h3 { margin-bottom: var(--space-3); }

@media (min-width: 1024px) {
  .audit-cards { grid-template-columns: repeat(3, 1fr); }
}

/* ===== Audit: Signature Finding Card ===== */
.finding-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: var(--space-5);
  max-width: 880px;
  box-shadow: 0 20px 55px rgba(30, 36, 41, 0.06);
}
.finding-showcase {
  display: grid;
  gap: var(--space-6);
  align-items: start;
  margin-top: var(--space-8);
}
.finding-showcase .media-frame {
  margin-block: 0;
  max-width: 420px;
}
.report-structure {
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: var(--space-6);
  max-width: 420px;
  height: fit-content;
}
.report-structure__label {
  font-family: 'Public Sans', sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-5);
}
.report-structure__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.report-structure__list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  font-size: 16px;
  border-top: 1px solid var(--line);
  padding-top: var(--space-4);
}
.report-structure__list li:first-child {
  border-top: none;
  padding-top: 0;
}
.report-structure__list span {
  font-family: 'Newsreader', serif;
  color: var(--accent-dark);
  font-size: 18px;
  line-height: 1;
}
.report-structure__list li[data-highlights] { cursor: default; }
.report-structure__list li[data-highlights]:hover { color: var(--accent-dark); }

/* Hovering a section in the list highlights the matching text in the finding card */
.finding-hl {
  border-radius: 2px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  transition: background-color 180ms var(--ease-ledger);
}
.finding-showcase:has(li[data-highlights="found"]:hover)   .finding-hl[data-section="found"],
.finding-showcase:has(li[data-highlights="matters"]:hover) .finding-hl[data-section="matters"],
.finding-showcase:has(li[data-highlights="actions"]:hover) .finding-hl[data-section="actions"],
.finding-showcase:has(li[data-highlights="impact"]:hover)  .finding-hl[data-section="impact"] {
  background-color: rgba(159, 225, 203, 0.4);
}
.finding-card__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.finding-card__label {
  font-family: 'Public Sans', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.finding-card__badge {
  font-size: 13px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: var(--space-1) var(--space-3);
}
.finding-card::before {
  content: "";
  position: absolute;
  inset-block: var(--space-5);
  left: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(1);
  transform-origin: top;
}
.finding-card__rule { margin-bottom: var(--space-5); }
.finding-card__body {
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: var(--space-5);
}
.finding-card__tags {
  list-style: none;
  padding: 0;
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}
.finding-tag {
  background: var(--tag-bg);
  border-radius: 999px;
  padding: var(--space-1) var(--space-4);
  font-family: 'Public Sans', sans-serif;
  font-weight: 500;
  font-size: 13px;
}
.finding-card__footer {
  border-top: 1px solid var(--line);
  padding-top: var(--space-4);
}

@media (min-width: 1024px) {
  .finding-card {
    padding: var(--space-7);
  }
  .finding-card::before { inset-block: var(--space-7); }
  .finding-showcase {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  }
}

/* ===== How We Work: Steps ===== */
.steps-track {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin: var(--space-7) 0 0;
  flex-wrap: wrap;
}
.steps-track__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.steps-track__circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Newsreader', serif;
  font-size: 20px;
  color: var(--ink);
}
.steps-track__circle--filled {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--paper);
}
.steps-track__word {
  font-family: 'Public Sans', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.steps-track__arrow {
  color: var(--ink-soft);
  font-size: 20px;
  margin-bottom: 28px;
  flex: 1;
  min-width: 24px;
  text-align: center;
}

.steps {
  list-style: none;
  padding: 0;
  margin: var(--space-7) 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
.step h3 { margin-bottom: var(--space-3); }

@media (min-width: 1024px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 767px) {
  .steps-track { gap: var(--space-4); }
  .steps-track__circle { width: 44px; height: 44px; font-size: 16px; }
  .steps-track__arrow { margin-bottom: 22px; }
}

/* ===== Quiet List (text-led, no cards) ===== */
.quiet-list {
  list-style: none;
  padding: 0;
  margin: var(--space-7) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  border-top: 1px solid var(--line);
  padding-top: var(--space-5);
}
.quiet-list li {
  font-family: 'Public Sans', sans-serif;
  font-size: 16px;
  color: var(--ink-soft);
}

/* The one reversed panel on the page — full-bleed, per design spec §6 */
.panel-reversed {
  background: var(--accent-dark);
  padding-block: var(--space-8);
}

@media (min-width: 768px) {
  .panel-reversed { padding-block: var(--space-9); }
}
.panel-reversed__inner h3 { color: var(--paper); margin-bottom: var(--space-4); }
.panel-reversed__inner p { color: rgba(246, 242, 234, 0.85); font-size: 18px; }

/* ===== Why Now: Timeline ===== */
.timeline {
  margin-block: var(--space-8);
  max-width: 640px;
  margin-inline: auto;
  text-align: right;
}
.timeline__date {
  font-size: 16px;
  margin-bottom: var(--space-3);
}
.timeline__track {
  position: relative;
  height: 1px;
  background: var(--line);
}
.timeline__marker {
  position: absolute;
  top: 50%;
  right: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-dark);
  transform: translate(50%, -50%);
}
.timeline__caption {
  font-size: 15px;
  color: var(--ink-soft);
  margin-top: var(--space-3);
}

@media (max-width: 767px) {
  .timeline { margin-block: var(--space-6); }
}

/* Founders — Task 11 */
.founders {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
  margin: var(--space-7) 0;
}
.founder-card__photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: grayscale(1) contrast(0.92) brightness(1.05) sepia(0.12);
  background-color: var(--tag-bg);
  margin-bottom: var(--space-4);
}
.founder-card h3 { margin-bottom: var(--space-2); }
.founder-card__role {
  font-family: 'Public Sans', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--accent-dark);
  margin-bottom: var(--space-3);
}
.founder-card p:not(.founder-card__role):not(.founder-card__link) { margin-bottom: var(--space-3); }
.founder-card__link {
  font-size: 14px;
  color: var(--ink-soft);
  border: 1px dashed var(--line);
  display: inline-block;
  padding: var(--space-1) var(--space-3);
}

.honesty-note {
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: var(--space-5);
  font-size: 15px;
  color: var(--ink-soft);
}

@media (min-width: 1024px) {
  .founders { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Final CTA — Task 12 ===== */
.final-cta { text-align: left; }
.final-cta h2 { margin-bottom: var(--space-4); }
.final-cta p.measure { margin-bottom: var(--space-6); }
.final-cta__line { margin-top: var(--space-4); }

/* ===== Footer — Task 12 ===== */
.footer {
  padding-block: var(--space-8);
  background: var(--paper);
}
.footer__wordmark { margin-bottom: var(--space-5); }
.footer__mission { margin-bottom: var(--space-4); }
.footer__name-note, .footer__links { margin-bottom: var(--space-3); }
.footer__disclaimer { margin-bottom: var(--space-4); }

/* ===== Scroll reveal — Task 13 ===== */
[data-reveal] {
  opacity: 1;
  transform: none;
}
[data-reveal] :is(.eyebrow, h1, h2, h3, .measure, .hero__actions, .hero__caption, .problem__closing, .quiet-list, .honesty-note, .button, .final-cta__line, .media-frame, .steps-track, .timeline, .report-structure),
[data-reveal] :is(.question-chip, .audit-card, .step, .founder-card),
.panel-reversed[data-reveal] .panel-reversed__inner {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal].is-pre-reveal :is(.eyebrow, h1, h2, h3, .measure, .hero__actions, .hero__caption, .problem__closing, .quiet-list, .honesty-note, .button, .final-cta__line, .media-frame, .steps-track, .timeline, .report-structure),
[data-reveal].is-pre-reveal :is(.question-chip, .audit-card, .step, .founder-card),
.panel-reversed[data-reveal].is-pre-reveal .panel-reversed__inner {
  opacity: 0;
  transform: translateY(10px);
}
[data-reveal].is-revealed :is(.eyebrow, h1, h2, h3, .measure, .hero__actions, .hero__caption, .problem__closing, .quiet-list, .honesty-note, .button, .final-cta__line, .media-frame, .steps-track, .timeline, .report-structure),
[data-reveal].is-revealed :is(.question-chip, .audit-card, .step, .founder-card),
.panel-reversed[data-reveal].is-revealed .panel-reversed__inner {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity var(--reveal-duration) var(--ease-ledger),
    transform var(--reveal-duration) var(--ease-ledger);
}
[data-reveal].is-pre-reveal .ledger-rule::before,
[data-reveal].is-pre-reveal .ledger-rule::after {
  transform: scaleX(0);
}
[data-reveal].is-revealed .ledger-rule::before {
  transform: scaleX(1);
  transition: transform var(--ledger-duration) var(--ease-ledger);
}
[data-reveal].is-revealed .ledger-rule::after {
  transform: scaleX(1);
  transition: transform 260ms var(--ease-ledger) 300ms;
}
[data-reveal].is-pre-reveal .finding-card::before {
  transform: scaleY(0);
}
[data-reveal].is-revealed .finding-card::before {
  transform: scaleY(1);
  transition: transform var(--ledger-duration) var(--ease-ledger) 120ms;
}
[data-reveal].is-revealed .eyebrow { transition-delay: 0ms; }
[data-reveal].is-revealed h1,
[data-reveal].is-revealed h2,
.panel-reversed[data-reveal].is-revealed .panel-reversed__inner { transition-delay: 70ms; }
[data-reveal].is-revealed .measure,
[data-reveal].is-revealed .hero__actions { transition-delay: 130ms; }
[data-reveal].is-revealed .hero__caption,
[data-reveal].is-revealed .problem__closing,
[data-reveal].is-revealed .quiet-list,
[data-reveal].is-revealed .honesty-note,
[data-reveal].is-revealed .final-cta__line,
[data-reveal].is-revealed .media-frame,
[data-reveal].is-revealed .steps-track,
[data-reveal].is-revealed .timeline,
[data-reveal].is-revealed .report-structure { transition-delay: 190ms; }
[data-reveal].is-revealed :is(.question-chip, .audit-card, .step, .founder-card):nth-child(1) { transition-delay: 120ms; }
[data-reveal].is-revealed :is(.question-chip, .audit-card, .step, .founder-card):nth-child(2) { transition-delay: 180ms; }
[data-reveal].is-revealed :is(.question-chip, .audit-card, .step, .founder-card):nth-child(3) { transition-delay: 240ms; }
[data-reveal].is-revealed :is(.question-chip, .audit-card, .step, .founder-card):nth-child(4) { transition-delay: 300ms; }
[data-reveal].is-revealed :is(.question-chip, .audit-card, .step, .founder-card):nth-child(5) { transition-delay: 360ms; }
[data-reveal].is-pre-reveal .finding-card :is(.finding-card__header, .finding-card__body, .finding-card__tags, .finding-card__footer) {
  opacity: 0;
  transform: translateY(8px);
}
[data-reveal].is-revealed .finding-card :is(.finding-card__header, .finding-card__body, .finding-card__tags, .finding-card__footer) {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity var(--reveal-duration) var(--ease-ledger),
    transform var(--reveal-duration) var(--ease-ledger);
}
[data-reveal].is-revealed .finding-card__header { transition-delay: 300ms; }
[data-reveal].is-revealed .finding-card__body { transition-delay: 380ms; }
[data-reveal].is-revealed .finding-card__tags { transition-delay: 440ms; }
[data-reveal].is-revealed .finding-card__footer { transition-delay: 500ms; }

@media (max-width: 767px) {
  :root {
    --section-padding: var(--space-8);
    --container-gutter: var(--space-5);
  }
  .hero {
    min-height: auto;
    align-items: flex-start;
  }
  .hero .container {
    padding-block: var(--space-8);
  }
  .hero h1 { max-width: 11ch; }
  .hero__actions {
    align-items: flex-start;
    gap: var(--space-4);
  }
  .question-chips,
  .audit-cards,
  .steps,
  .founders {
    gap: var(--space-4);
  }
  .finding-card {
    padding: var(--space-5);
    box-shadow: none;
  }
  .finding-card::before { inset-block: var(--space-5); }
  .finding-card__body {
    font-size: 17px;
    line-height: 1.65;
  }
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal].is-pre-reveal *,
  [data-reveal].is-revealed *,
  [data-reveal].is-pre-reveal *::before,
  [data-reveal].is-pre-reveal *::after,
  [data-reveal].is-revealed *::before,
  [data-reveal].is-revealed *::after {
    opacity: 1;
    transform: none;
    transition: none;
  }
}