/* ============================================================
   Cascadia.me — Earthquake, Chapter One
   Phase 3: sustained illustrated reading with an emergency bypass
   ============================================================ */

.earthquake-chapter-page main {
  overflow: visible;
}

.earthquake-chapter-page .eq-chapter {
  --eq-section-space: clamp(4.5rem, 6.5vw, 6.75rem);
  --eq-flow-space: clamp(2.75rem, 4.5vw, 4.5rem);

  color: var(--lw-text);
  background: var(--lw-cream-50);
  font-family: var(--font-body);
}

.eq-container {
  width: min(100% - clamp(2rem, 6vw, 6rem), 90rem);
  margin-inline: auto;
}

.eq-reading {
  width: min(100% - clamp(2rem, 6vw, 6rem), 46rem);
  margin-inline: auto;
}

.eq-kicker {
  margin: 0 0 0.9rem;
  color: var(--lw-camas-600);
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eq-chapter h1,
.eq-chapter h2,
.eq-chapter h3 {
  font-family: var(--font-display);
}

.eq-chapter h2 {
  margin: 0;
  color: var(--lw-ocean-900);
  font-size: clamp(3.35rem, 5.4vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.96;
}

.eq-prose {
  margin-top: clamp(1.8rem, 3vw, 2.6rem);
}

.eq-prose p {
  margin: 0;
  color: var(--lw-text);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.48vw, 1.34rem);
  letter-spacing: -0.005em;
  line-height: 1.72;
}

.eq-prose p + p {
  margin-top: 1.45em;
}

.eq-chapter a {
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.eq-prose a,
.eq-field-note a,
.eq-continuation a,
.eq-sources a,
.eq-source-footer a {
  color: var(--lw-ocean-700);
}

.eq-prose a:hover,
.eq-field-note a:hover,
.eq-continuation a:hover,
.eq-sources a:hover,
.eq-source-footer a:hover {
  color: var(--lw-spruce-700);
}

/* Chapter opening */

.eq-hero {
  position: relative;
  min-height: clamp(41rem, 63vw, 51rem);
  padding-top: var(--nav-height);
  isolation: isolate;
  overflow: hidden;
  background: var(--lw-cream-50);
}

.eq-hero-picture {
  position: absolute;
  inset: var(--nav-height) 0 0;
  z-index: -2;
}

.eq-hero-picture,
.eq-hero-picture img {
  display: block;
  width: 100%;
  height: 100%;
}

.eq-hero-picture img {
  object-fit: cover;
  object-position: center center;
}

.eq-hero::after {
  content: '';
  position: absolute;
  inset: var(--nav-height) 0 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    90deg,
    rgba(251, 247, 238, 0.99) 0%,
    rgba(251, 247, 238, 0.97) 27%,
    rgba(251, 247, 238, 0.78) 43%,
    rgba(251, 247, 238, 0.14) 61%,
    rgba(251, 247, 238, 0) 74%
  );
}

.eq-hero-inner {
  display: flex;
  min-height: clamp(36.75rem, calc(63vw - var(--nav-height)), 46.75rem);
  align-items: center;
  padding-block: clamp(4.5rem, 8vw, 7rem);
}

.eq-hero-copy {
  width: min(51%, 43rem);
}

.eq-hero h1 {
  margin: 0;
  color: var(--lw-ocean-900);
  font-size: clamp(5rem, 8.2vw, 8.4rem);
  font-weight: 500;
  letter-spacing: -0.062em;
  line-height: 0.86;
}

.eq-hero-lede {
  max-width: 39rem;
  margin: clamp(1.6rem, 3vw, 2.25rem) 0 0;
  color: var(--lw-text);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.65vw, 1.42rem);
  letter-spacing: -0.006em;
  line-height: 1.62;
}

.eq-hero-note {
  max-width: 38rem;
  margin: 1.6rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(6, 59, 92, 0.17);
  color: var(--lw-muted);
  font-size: 0.82rem;
  line-height: 1.55;
}

.eq-now-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
  color: var(--lw-ocean-700);
  font-size: 0.9rem;
  font-weight: 700;
}

/* Immediate reference */

.eq-bypass {
  padding: clamp(2.75rem, 4vw, 4rem) 0;
  scroll-margin-top: var(--nav-height);
  color: var(--lw-cream-50);
  background:
    linear-gradient(120deg, rgba(101, 82, 154, 0.18), transparent 48%),
    var(--lw-basalt-900);
}

.eq-bypass .eq-kicker {
  color: var(--lw-glacial-on-ocean);
}

.eq-bypass-heading {
  display: grid;
  grid-template-columns: minmax(16rem, 0.58fr) minmax(0, 1.42fr);
  gap: 1.5rem 4rem;
  align-items: end;
}

.eq-bypass-heading .eq-kicker {
  grid-column: 1 / -1;
  margin-bottom: -0.15rem;
}

.eq-bypass-heading h2 {
  grid-column: 1 / -1;
  max-width: 42rem;
}

.eq-bypass h2 {
  max-width: 42rem;
  color: var(--lw-cream-50);
  font-size: clamp(2.8rem, 4.6vw, 4.6rem);
}

.eq-bypass-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: clamp(2.25rem, 4vw, 3.5rem) 0 0;
  padding: 0;
  border-top: 1px solid rgba(251, 247, 238, 0.25);
  border-bottom: 1px solid rgba(251, 247, 238, 0.25);
  list-style: none;
}

.eq-bypass-actions li {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.6rem 1.5rem;
}

.eq-bypass-actions li + li {
  border-left: 1px solid rgba(251, 247, 238, 0.25);
}

.eq-bypass-actions li > span {
  color: var(--lw-glacial-on-ocean);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.eq-bypass-actions h3 {
  margin: 0;
  color: var(--lw-cream-50);
  font-size: clamp(1.65rem, 2.3vw, 2.3rem);
  font-weight: 600;
  letter-spacing: -0.025em;
}

.eq-bypass-actions p {
  margin: 0.45rem 0 0;
  color: rgba(251, 247, 238, 0.82);
  font-size: 0.94rem;
  line-height: 1.55;
}

.eq-bypass-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 3rem;
  margin-top: 1.5rem;
}

.eq-bypass-notes p {
  margin: 0;
  color: rgba(251, 247, 238, 0.82);
  font-size: 0.9rem;
  line-height: 1.6;
}

.eq-bypass-notes strong {
  color: var(--lw-cream-50);
}

.eq-bypass-link {
  margin: 1.2rem 0 0;
}

.eq-bypass-link a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--lw-cream-50);
  font-size: 0.86rem;
  font-weight: 700;
}

/* Long-form reading */

.eq-section {
  padding: var(--eq-section-space) 0;
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.eq-opening {
  border-bottom: 1px solid var(--lw-line);
}

.eq-field-note {
  margin-top: var(--eq-flow-space);
  padding: 1.5rem 0 0 1.5rem;
  border-top: 1px solid var(--lw-line);
  border-left: 4px solid var(--lw-camas-600);
}

.eq-field-note h3 {
  margin: 0;
  color: var(--lw-ocean-900);
  font-size: 1.7rem;
  font-weight: 600;
}

.eq-field-note p {
  margin: 0.7rem 0 0;
  color: var(--lw-muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

.eq-composite {
  background:
    radial-gradient(circle at 94% 12%, rgba(232, 185, 52, 0.11), transparent 28rem),
    var(--lw-cream-100);
}

.eq-disclosure {
  margin: 1.75rem 0 0;
  padding: 0.9rem 0 0.9rem 1.15rem;
  border-left: 3px solid var(--lw-camas-600);
  color: var(--lw-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}

.eq-disclosure strong {
  color: var(--lw-ocean-900);
}

.eq-plate {
  width: min(100% - clamp(2rem, 6vw, 6rem), 90rem);
  margin: var(--eq-flow-space) auto 0;
}

.eq-plate picture,
.eq-plate img {
  display: block;
  width: 100%;
}

.eq-plate img {
  height: auto;
}

.eq-plate figcaption {
  max-width: 58rem;
  margin: 0;
  padding: 1rem 0.15rem 0;
  color: var(--lw-muted);
  font-size: 0.86rem;
  line-height: 1.58;
}

.eq-after-plate {
  margin-top: var(--eq-flow-space);
}

.eq-geology {
  border-top: 1px solid var(--lw-line);
  background:
    radial-gradient(circle at 4% 16%, rgba(101, 82, 154, 0.07), transparent 26rem),
    var(--lw-cream-50);
}

.eq-process-plate {
  width: min(100% - clamp(2rem, 4vw, 4rem), 96rem);
}

.eq-local-ground {
  border-top: 1px solid var(--lw-line);
}

.eq-subchapter {
  margin-top: clamp(3.25rem, 5vw, 4.75rem);
  padding-top: clamp(2.4rem, 4vw, 3.5rem);
  border-top: 1px solid var(--lw-line);
}

.eq-subchapter h3 {
  max-width: 42rem;
  margin: 0;
  color: var(--lw-ocean-900);
  font-size: clamp(2rem, 3.3vw, 3rem);
  font-weight: 550;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.eq-preparing {
  border-top: 1px solid var(--lw-line);
  background:
    linear-gradient(180deg, rgba(47, 170, 179, 0.05), transparent 28rem),
    var(--lw-cream-50);
}

.eq-conclusion {
  border-top: 1px solid var(--lw-line);
  background:
    radial-gradient(circle at 100% 0%, rgba(47, 170, 179, 0.12), transparent 30rem),
    var(--lw-cream-100);
}

.eq-continuation {
  margin: 2rem 0 0;
}

.eq-continuation a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 700;
}

/* Concise reference path */

.eq-reference {
  padding: var(--eq-section-space) 0;
  scroll-margin-top: calc(var(--nav-height) + 1rem);
  color: var(--lw-cream-50);
  background:
    linear-gradient(125deg, rgba(101, 82, 154, 0.2), transparent 52%),
    var(--lw-basalt-900);
}

.eq-reference .eq-kicker {
  color: var(--lw-glacial-on-ocean);
}

.eq-reference-heading {
  display: grid;
  grid-template-columns: minmax(20rem, 0.8fr) minmax(18rem, 0.45fr);
  gap: 1.5rem clamp(3rem, 8vw, 8rem);
  align-items: end;
}

.eq-reference-heading .eq-kicker {
  grid-column: 1 / -1;
  margin-bottom: -0.1rem;
}

.eq-reference-heading h2 {
  color: var(--lw-cream-50);
}

.eq-reference-heading > p:last-child {
  margin: 0 0 0.4rem;
  color: rgba(251, 247, 238, 0.72);
  font-size: 0.92rem;
  line-height: 1.62;
}

.eq-reference-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: var(--eq-flow-space);
  border-top: 1px solid rgba(251, 247, 238, 0.25);
  border-bottom: 1px solid rgba(251, 247, 238, 0.25);
}

.eq-reference-grid > section {
  padding: 2rem clamp(1.25rem, 2.6vw, 2.5rem) 2.25rem;
}

.eq-reference-grid > section + section {
  border-left: 1px solid rgba(251, 247, 238, 0.25);
}

.eq-reference-grid h3 {
  margin: 0;
  color: var(--lw-cream-50);
  font-size: clamp(1.8rem, 2.7vw, 2.55rem);
  font-weight: 600;
  letter-spacing: -0.025em;
}

.eq-reference-grid ul {
  margin: 1.25rem 0 0;
  padding-left: 1.1rem;
}

.eq-reference-grid li {
  color: rgba(251, 247, 238, 0.82);
  font-size: 0.91rem;
  line-height: 1.6;
}

.eq-reference-grid li + li {
  margin-top: 0.8rem;
}

.eq-reference-grid li::marker {
  color: var(--lw-glacial-on-ocean);
}

/* Notes and sources */

.eq-sources {
  border-top: 1px solid var(--lw-line);
  background: var(--lw-cream-50);
}

.eq-sources-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 0.52fr) minmax(0, 1.48fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: start;
}

.eq-sources-intro h2 {
  margin: 0;
  color: var(--lw-ocean-900);
  font-size: clamp(3rem, 4.8vw, 4.8rem);
  font-weight: 500;
  letter-spacing: -0.048em;
  line-height: 0.96;
}

.eq-sources-intro > p:not(.eq-kicker) {
  margin: 1.5rem 0 0;
  color: var(--lw-muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

.eq-review-line {
  padding-top: 1rem;
  border-top: 1px solid var(--lw-line);
}

.eq-source-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.5rem 3rem;
}

.eq-source-columns section {
  padding-top: 1.1rem;
  border-top: 1px solid var(--lw-line);
}

.eq-source-columns h3 {
  margin: 0;
  color: var(--lw-ocean-900);
  font-size: 1.5rem;
  font-weight: 600;
}

.eq-source-columns ul {
  margin: 0.85rem 0 0;
  padding-left: 1rem;
}

.eq-source-columns li {
  color: var(--lw-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.eq-source-columns li + li {
  margin-top: 0.65rem;
}

.eq-source-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-top: var(--eq-flow-space);
  padding-top: 1.5rem;
  border-top: 1px solid var(--lw-line);
}

.eq-source-footer p {
  margin: 0;
  color: var(--lw-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.eq-source-footer a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  flex: 0 0 auto;
  font-size: 0.88rem;
  font-weight: 700;
}

@media (max-width: 1050px) {
  .eq-hero {
    min-height: 43rem;
  }

  .eq-hero-copy {
    width: 55%;
  }

  .eq-reference-grid {
    grid-template-columns: 1fr;
  }

  .eq-reference-grid > section + section {
    border-top: 1px solid rgba(251, 247, 238, 0.25);
    border-left: 0;
  }
}

@media (max-width: 860px) {
  .eq-hero {
    display: flex;
    min-height: 0;
    flex-direction: column;
  }

  .eq-hero::after {
    display: none;
  }

  .eq-hero-inner {
    display: block;
    order: 1;
    min-height: 0;
    padding-block: clamp(3.5rem, 8vw, 5rem);
  }

  .eq-hero-copy {
    width: auto;
    max-width: 46rem;
  }

  .eq-hero-picture {
    position: relative;
    inset: auto;
    order: 2;
    height: auto;
  }

  .eq-hero-picture img {
    height: auto;
    object-fit: contain;
  }

  .eq-bypass-heading,
  .eq-reference-heading,
  .eq-sources-layout {
    grid-template-columns: 1fr;
  }

  .eq-reference-heading > p:last-child {
    max-width: 42rem;
  }

  .eq-source-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 740px) {
  .eq-bypass-actions,
  .eq-bypass-notes {
    grid-template-columns: 1fr;
  }

  .eq-bypass-actions li + li {
    border-top: 1px solid rgba(251, 247, 238, 0.25);
    border-left: 0;
  }

  .eq-bypass-notes p + p {
    padding-top: 1.25rem;
    border-top: 1px solid rgba(251, 247, 238, 0.18);
  }

  .eq-source-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .earthquake-chapter-page .eq-chapter {
    --eq-section-space: 4rem;
    --eq-flow-space: 2.5rem;
  }

  .eq-container,
  .eq-reading,
  .eq-plate {
    width: min(100% - 2rem, 90rem);
  }

  .eq-process-plate,
  .eq-vignette-plate {
    width: 100%;
  }

  .eq-chapter h2 {
    font-size: clamp(2.8rem, 13.5vw, 4rem);
  }

  .eq-prose p {
    font-size: 1.16rem;
    line-height: 1.68;
  }

  .eq-hero-inner {
    padding-inline: 0;
  }

  .eq-hero h1 {
    font-size: clamp(3.8rem, 19vw, 5rem);
  }

  .eq-hero-lede {
    font-size: 1.13rem;
  }

  .eq-bypass h2 {
    font-size: clamp(2.6rem, 12vw, 3.5rem);
  }

  .eq-bypass-actions li {
    grid-template-columns: 2.6rem minmax(0, 1fr);
    padding-inline: 0;
  }

  .eq-plate figcaption {
    padding-inline: 1rem;
  }

  .eq-disclosure {
    font-size: 0.82rem;
  }

  .eq-subchapter h3 {
    font-size: 2rem;
  }

  .eq-reference-grid > section {
    padding-inline: 0;
  }

  .eq-sources-intro h2 {
    font-size: clamp(2.8rem, 13vw, 4rem);
  }

  .earthquake-chapter-page .feedback-widget {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .eq-now-link,
  .eq-continuation a,
  .eq-source-footer a {
    transition: none;
  }
}

@media print {
  .earthquake-chapter-page {
    color: #111;
    background: #fff;
  }

  .earthquake-chapter-page .site-header,
  .earthquake-chapter-page .site-footer,
  .earthquake-chapter-page .feedback-widget,
  .eq-now-link,
  .eq-source-footer {
    display: none !important;
  }

  .eq-hero,
  .eq-hero-inner,
  .eq-section,
  .eq-reference {
    min-height: 0;
    padding: 1.5rem 0;
    color: #111;
    background: #fff;
  }

  .eq-hero {
    display: block;
  }

  .eq-hero::after {
    display: none;
  }

  .eq-hero-picture {
    position: static;
    height: auto;
  }

  .eq-hero-picture img {
    height: auto;
    max-height: 4.5in;
    object-fit: contain;
  }

  .eq-hero-copy {
    width: auto;
  }

  .eq-bypass {
    padding: 1.5rem 0;
    color: #111;
    background: #fff;
    border-block: 2px solid #333;
  }

  .eq-bypass h2,
  .eq-bypass-actions h3,
  .eq-reference h2,
  .eq-reference h3,
  .eq-reference-grid li,
  .eq-bypass-actions p,
  .eq-bypass-notes p {
    color: #111;
  }

  .eq-bypass-actions,
  .eq-reference-grid {
    display: block;
    border-color: #aaa;
  }

  .eq-bypass-actions li,
  .eq-reference-grid > section {
    break-inside: avoid;
    border-top: 1px solid #bbb;
    border-left: 0;
  }

  .eq-plate {
    break-inside: avoid;
    width: 100%;
  }

  .eq-plate img {
    max-height: 6in;
    object-fit: contain;
  }

  .eq-sources-layout,
  .eq-source-columns {
    display: block;
  }

  .eq-source-columns section {
    break-inside: avoid;
    margin-top: 1rem;
  }
}