.field-guide-page {
  min-height: 100vh;
  background: var(--paper);
  --guide-gold: #b8862f;
  --guide-gold-light: #d6a649;
}

.field-guide-shell {
  width: min(1328px, calc(100% - 7rem));
  margin: 3.3rem auto 0;
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 54px;
}

.field-guide-index ol {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
}

.field-guide-index li {
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 32%, transparent);
}

.field-guide-index a {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 0.55rem;
  padding: 1.05rem 0 0.9rem;
  color: var(--ink);
  font: 400 0.66rem/1.3 var(--mono);
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.field-guide-index a span {
  color: var(--rust);
  font-weight: 500;
}

.field-guide-index a:hover,
.field-guide-index a:focus-visible {
  color: var(--rust);
}

.field-guide-main {
  min-width: 0;
}

.guide-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 485px);
  gap: 48px;
  align-items: start;
}

.guide-intro h1 {
  margin: 1.1rem 0 1.55rem;
  font-size: clamp(4.4rem, 7.1vw, 6rem);
  font-weight: 600;
  letter-spacing: -0.048em;
  line-height: 0.91;
}

.guide-intro h1 span {
  color: var(--rust);
}

.guide-deck {
  max-width: 620px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.8rem;
  line-height: 1.3;
}

.guide-copy {
  max-width: 590px;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.62;
}

.guide-actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.guide-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.95rem 1.2rem;
  font: 500 0.67rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  border: 1px solid var(--rule);
}

.guide-cta.primary {
  background: var(--rust);
  border-color: var(--rust);
  color: #f4eedf;
}

.guide-cta.primary:hover,
.guide-cta.primary:focus-visible {
  background: #7f3e2b;
}

.guide-cta.secondary {
  color: var(--blue);
}

.guide-cta.secondary:hover,
.guide-cta.secondary:focus-visible {
  color: #1d5b8a;
  border-color: var(--blue);
}

.guide-cta.gold {
  background: var(--guide-gold);
  border-color: var(--guide-gold);
  color: #171814;
}

.guide-cta.gold:hover,
.guide-cta.gold:focus-visible {
  background: var(--guide-gold-light);
}

.guide-cta.dark-outline {
  color: var(--panel-text);
  border-color: #64695f;
}

.guide-cta.dark-outline:hover,
.guide-cta.dark-outline:focus-visible {
  border-color: var(--guide-gold-light);
  color: var(--guide-gold-light);
}

.guide-meta {
  margin: 1.5rem 0 0;
  color: var(--muted-2);
  font: 400 0.62rem/1.55 var(--mono);
  letter-spacing: 0.09em;
}

.guide-key {
  min-height: 548px;
  padding: 2rem;
  background: var(--panel);
  color: var(--panel-text);
}

.guide-key > .micro-label {
  padding-bottom: 1.2rem;
  border-bottom: 1px solid color-mix(in srgb, #b9ac94 25%, transparent);
  color: #d8c9ae;
}

.guide-key > p:not(.micro-label) {
  margin: 1.35rem 0 0;
  color: var(--panel-muted);
  font-size: 1rem;
  line-height: 1.55;
}

.guide-key-diagram {
  margin: 2.1rem 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.cause-block {
  min-height: 296px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  border: 1px solid color-mix(in srgb, #b9ac94 22%, transparent);
  background: var(--panel-2);
}

.cause-block > span,
.cause-block > small {
  color: var(--panel-muted);
  font: 500 0.59rem/1.35 var(--mono);
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.cause-block.inward > span {
  color: var(--guide-gold-light);
}

.cause-block.outward > span {
  color: var(--rust-soft);
}

.cause-mark {
  width: 118px;
  height: 118px;
  position: relative;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.cause-block.inward .cause-mark {
  color: var(--guide-gold-light);
}

.cause-block.outward .cause-mark {
  color: var(--rust-soft);
}

.cause-mark b {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: currentColor;
}

.cause-mark .arrow {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1px;
  height: 50px;
  background: currentColor;
  transform-origin: 50% 0;
}

.cause-mark .north { transform: rotate(0deg); }
.cause-mark .east { transform: rotate(90deg); }
.cause-mark .south { transform: rotate(180deg); }
.cause-mark .west { transform: rotate(270deg); }

.cause-block.inward .cause-mark .arrow::after,
.cause-block.outward .cause-mark .arrow::after {
  content: "";
  position: absolute;
  left: -3px;
  width: 7px;
  height: 7px;
  border-top: 1px solid currentColor;
  border-left: 1px solid currentColor;
}

.cause-block.inward .cause-mark .arrow::after {
  top: 6px;
  transform: rotate(45deg);
}

.cause-block.outward .cause-mark .arrow::after {
  bottom: -1px;
  transform: rotate(225deg);
}

.guide-thesis,
.guide-evidence,
.habit-section,
.video-section,
.download-section,
.thin-ice {
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid color-mix(in srgb, var(--rule) 50%, transparent);
}

.guide-thesis h2,
.guide-evidence h2,
.habit-section h2,
.video-section h2,
.download-section h2,
.thin-ice h2 {
  max-width: 850px;
  margin: 1rem 0 0;
  font-size: clamp(2.8rem, 5.4vw, 4.3rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 0.98;
}

.guide-lede {
  max-width: 720px;
  margin: 1.4rem 0 0;
  color: var(--ink-soft);
  font-size: 1.35rem;
  line-height: 1.45;
}

.thesis-grid,
.thin-grid {
  margin-top: 2.8rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid color-mix(in srgb, var(--rule) 35%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 35%, transparent);
}

.thesis-grid article,
.thin-grid article {
  min-height: 220px;
  padding: 2rem 1.6rem 2rem 0;
}

.thesis-grid article + article,
.thin-grid article + article {
  padding-left: 1.6rem;
  border-left: 1px solid color-mix(in srgb, var(--rule) 35%, transparent);
}

.thesis-grid h3,
.thin-grid h3 {
  margin: 0.85rem 0 0;
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1.18;
}

.thesis-grid article > p:not(.micro-label),
.thin-grid article > p:not(.micro-label) {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.guide-pull {
  margin: 3rem 0 0;
  padding: 2rem 2.2rem;
  border-left: 4px solid var(--rust);
  background: var(--paper-raised);
}

.guide-pull p {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  font-style: italic;
  line-height: 1.28;
}

.evidence-list {
  margin-top: 2.6rem;
}

.evidence-row {
  min-height: 180px;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
  padding: 2rem 0;
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 35%, transparent);
}

.evidence-number {
  color: var(--rust);
  font: 500 0.72rem/1 var(--mono);
  letter-spacing: 0.13em;
}

.evidence-row h3 {
  max-width: 780px;
  margin: 0.65rem 0 0;
  font-size: 1.8rem;
  font-weight: 600;
  line-height: 1.18;
}

.evidence-row div > p:not(.micro-label) {
  max-width: 800px;
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.habit-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 48px;
  align-items: start;
}

.habit-checks {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
}

.habit-checks li {
  position: relative;
  padding: 0 0 1.35rem 2.2rem;
  margin-bottom: 1.35rem;
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 30%, transparent);
}

.habit-checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3rem;
  width: 13px;
  height: 13px;
  border: 2px solid var(--rust);
}

.habit-checks strong,
.habit-checks span {
  display: block;
}

.habit-checks strong {
  font-size: 1.05rem;
}

.habit-checks span {
  margin-top: 0.35rem;
  color: var(--muted);
  line-height: 1.5;
}

.reward-panel {
  min-height: 490px;
  padding: 2rem;
  background: #dfd2c2;
  border: 1px solid color-mix(in srgb, var(--rust) 45%, var(--rule));
}

.reward-panel > .micro-label {
  color: var(--rust);
}

.reward-panel h3 {
  margin: 2rem 0 0;
  font-size: 2.6rem;
  font-weight: 600;
  line-height: 1;
}

.reward-panel p {
  margin: 1.4rem 0 0;
  color: #4d4037;
  font-size: 1.08rem;
  line-height: 1.55;
}

.reward-panel small {
  display: block;
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid color-mix(in srgb, var(--rust) 30%, transparent);
  color: var(--muted);
  font: 400 0.68rem/1.5 var(--mono);
}

.video-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 540px);
  gap: 48px;
  align-items: center;
}

.video-copy > p:not(.micro-label) {
  max-width: 560px;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.video-frame {
  aspect-ratio: 16 / 9;
  min-width: 0;
  background: var(--panel);
  color: var(--panel-text);
  border: 1px solid color-mix(in srgb, var(--rule) 60%, transparent);
}

.video-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.video-pending {
  width: 100%;
  height: 100%;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(135deg, transparent 0 42%, color-mix(in srgb, var(--blue) 22%, transparent) 42% 42.4%, transparent 42.4% 100%),
    var(--panel);
}

.video-pending > span,
.video-pending > strong {
  font-family: var(--mono);
  text-transform: uppercase;
}

.video-pending > span {
  color: var(--blue-light);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
}

.video-pending > strong {
  margin-top: 0.8rem;
  color: var(--panel-text);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.video-pending p {
  max-width: 360px;
  margin: 1rem 0 0;
  color: var(--panel-muted);
  font-size: 1rem;
  line-height: 1.45;
}

.download-section {
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 48px;
  align-items: center;
  background: var(--panel);
  color: var(--panel-text);
  border-top: 0;
}

.guide-cover {
  min-height: 500px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  position: relative;
  border: 1px solid color-mix(in srgb, var(--guide-gold) 60%, transparent);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--guide-gold) 13%, transparent), transparent 46%),
    var(--panel-2);
}

.guide-cover::before,
.guide-cover::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 1px;
  background: color-mix(in srgb, var(--guide-gold) 52%, transparent);
  transform: rotate(42deg);
}

.guide-cover::before {
  left: -60px;
  top: 130px;
}

.guide-cover::after {
  right: -70px;
  top: 200px;
  transform: rotate(-42deg);
}

.guide-cover p,
.guide-cover small {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--guide-gold-light);
  font: 500 0.62rem/1.45 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.guide-cover strong {
  position: relative;
  z-index: 1;
  margin: 1.4rem 0 1.8rem;
  font-size: 3rem;
  font-weight: 600;
  line-height: 0.96;
}

.guide-cover strong span {
  color: var(--guide-gold-light);
}

.download-copy > .micro-label {
  color: var(--guide-gold-light);
}

.download-copy h2 {
  color: var(--panel-text);
}

.download-copy > p:not(.micro-label) {
  max-width: 620px;
  margin: 1.4rem 0 0;
  color: var(--panel-muted);
  font-size: 1.08rem;
  line-height: 1.55;
}

.download-meta {
  margin-top: 1.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.download-meta span {
  padding: 0.55rem 0.7rem;
  border: 1px solid #64695f;
  color: #cfc5b2;
  font: 400 0.6rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.source-jump {
  margin-top: 2.5rem;
  padding: 1.6rem 0;
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: center;
  border-top: 1px solid color-mix(in srgb, var(--rule) 35%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--rule) 35%, transparent);
}

.source-jump p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.source-jump > a {
  color: var(--blue);
  font: 500 0.68rem/1 var(--mono);
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
}

.source-jump > a:hover,
.source-jump > a:focus-visible {
  color: #1d5b8a;
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

@media (max-width: 1180px) {
  .field-guide-shell {
    width: min(100% - 3rem, 1040px);
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 34px;
  }

  .guide-hero {
    grid-template-columns: minmax(0, 1fr) 390px;
    gap: 34px;
  }

  .habit-section,
  .video-section {
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 34px;
  }

  .download-section {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 34px;
  }
}

@media (max-width: 880px) {
  .field-guide-shell {
    width: calc(100% - 2.5rem);
    margin-top: 2rem;
    display: block;
  }

  .field-guide-index {
    display: none;
  }

  .guide-hero,
  .habit-section,
  .video-section,
  .download-section {
    display: block;
  }

  .guide-intro h1 {
    font-size: clamp(4rem, 17vw, 5rem);
  }

  .guide-deck {
    font-size: 1.5rem;
  }

  .guide-key {
    min-height: 0;
    margin-top: 2.8rem;
  }

  .guide-key-diagram {
    max-width: 520px;
  }

  .cause-block {
    min-height: 255px;
  }

  .thesis-grid,
  .thin-grid {
    grid-template-columns: 1fr;
  }

  .thesis-grid article,
  .thin-grid article {
    min-height: 0;
    padding: 1.5rem 0;
  }

  .thesis-grid article + article,
  .thin-grid article + article {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid color-mix(in srgb, var(--rule) 35%, transparent);
  }

  .reward-panel,
  .video-frame,
  .guide-cover {
    margin-top: 2.5rem;
  }

  .download-section {
    padding: 1.8rem;
  }

  .guide-cover {
    max-width: 430px;
  }
}

@media (max-width: 520px) {
  .guide-intro h1 {
    font-size: 3.7rem;
  }

  .guide-deck {
    font-size: 1.35rem;
  }

  .guide-key {
    padding: 1.35rem;
  }

  .guide-key-diagram {
    grid-template-columns: 1fr;
  }

  .cause-block {
    min-height: 228px;
  }

  .guide-thesis,
  .guide-evidence,
  .habit-section,
  .video-section,
  .download-section,
  .thin-ice {
    margin-top: 3.4rem;
  }

  .guide-thesis h2,
  .guide-evidence h2,
  .habit-section h2,
  .video-section h2,
  .download-section h2,
  .thin-ice h2 {
    font-size: 2.6rem;
  }

  .guide-lede {
    font-size: 1.18rem;
  }

  .evidence-row {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 14px;
  }

  .evidence-row h3 {
    font-size: 1.45rem;
  }

  .guide-actions {
    display: grid;
  }

  .guide-cta {
    justify-content: space-between;
  }

  .reward-panel {
    min-height: 0;
  }

  .download-section {
    padding: 1.35rem;
  }

  .guide-cover {
    min-height: 420px;
  }

  .source-jump {
    display: block;
  }

  .source-jump > a {
    display: inline-block;
    margin-top: 1.2rem;
  }
}