/* Echo Lane — Copper Index */
:root {
  --slate: #1a2228;
  --slate-deep: #0f1418;
  --paper: #f5f2eb;
  --paper-warm: #faf8f4;
  --copper: #b87333;
  --copper-soft: #d4925a;
  --fog: #5a6368;
  --stone: #3d464b;
  --hairline: rgba(26, 34, 40, 0.12);
  --shell-max: 1140px;
  --gutter: clamp(24px, 5vw, 80px);
  --measure: min(40rem, 100%);
  --rail-width: 12rem;
  --section-sm: 56px;
  --section-md: 80px;
  --section-lg: 104px;
  --section-xl: 128px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-soft: 0 4px 24px rgba(26, 34, 40, 0.08);
  --shadow-photo: 0 8px 32px rgba(26, 34, 40, 0.12);
  --font-serif: "Literata", Georgia, "Times New Roman", serif;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "Space Mono", ui-monospace, monospace;
  --focus-ring: 0 0 0 3px rgba(184, 115, 51, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--slate);
  background: var(--paper);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--copper);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--slate);
}

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: 0.75rem 1rem;
  background: var(--slate);
  color: var(--paper);
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--hairline);
  background: rgba(245, 242, 235, 0.92);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 1.1rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--slate);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-logo span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fog);
  margin-top: 0.2rem;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.35rem;
}

.site-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--stone);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--slate);
  text-decoration: underline;
  text-decoration-color: var(--copper);
}

/* Main layout */
.site-main {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: var(--section-md) var(--gutter) var(--section-lg);
}

.page-header {
  max-width: var(--measure);
  margin-bottom: var(--section-md);
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

.page-lead {
  font-size: 1.125rem;
  color: var(--stone);
  margin: 0;
  max-width: 42ch;
  line-height: 1.65;
}

.breadcrumb ol {
  list-style: none;
  margin: 0 0 var(--section-sm);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--stone);
}

.breadcrumb li:not(:last-child)::after {
  content: " / ";
  margin-left: 0.35rem;
  color: var(--fog);
}

.breadcrumb a {
  color: var(--fog);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--copper);
}

/* Prose */
.prose {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.72;
}

.prose p {
  margin: 0 0 1.35em;
}

.prose h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}

.prose ul,
.prose ol {
  margin: 0 0 1.35em;
  padding-left: 1.25rem;
}

.prose li {
  margin-bottom: 0.5em;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(26, 34, 40, 0.06);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}

.note-ref {
  font-family: var(--font-mono);
  font-size: 0.65em;
  margin-left: 0.15em;
}

.note-ref a {
  color: var(--copper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.note-ref a:hover {
  border-bottom-color: var(--copper);
}

/* Article with margin rail */
.article-layout {
  margin-bottom: var(--section-lg);
}

.article-header {
  max-width: calc(var(--measure) + var(--rail-width) + 2rem);
  margin-bottom: var(--section-sm);
}

.article-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone);
  margin: 0 0 0.75rem;
}

.article-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 4.5vw, 2.5rem);
  font-weight: 600;
  line-height: 1.18;
  margin: 0 0 0.65rem;
}

.article-date {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--stone);
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, var(--measure)) var(--rail-width);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.article-body {
  min-width: 0;
}

/* Margin rail sidenotes */
.margin-rail {
  position: relative;
  padding-top: 0.25rem;
}

.sidenote {
  position: relative;
  margin-bottom: 1.75rem;
  padding: 0.75rem 0.85rem;
  padding-left: 1rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--stone);
  background: rgba(184, 115, 51, 0.06);
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--copper);
}

.sidenote p {
  margin: 0;
}

.sidenote-tick {
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.55rem;
  height: 1px;
  background: var(--copper);
  transform-origin: left center;
}

html.js .sidenote-tick {
  transform: scaleX(0);
}

html.js .sidenote.is-visible .sidenote-tick {
  animation: tickDraw 480ms var(--ease) forwards;
}

html.js .sidenote.is-visible p {
  animation: sidenoteUnderline 520ms var(--ease) 120ms forwards;
  background-image: linear-gradient(var(--copper), var(--copper));
  background-size: 0% 1px;
  background-repeat: no-repeat;
  background-position: 0 100%;
}

@keyframes tickDraw {
  to { transform: scaleX(1); }
}

@keyframes sidenoteUnderline {
  to { background-size: 100% 1px; }
}

/* Photos */
.photo-frame {
  margin: var(--section-sm) 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--paper-warm);
  box-shadow: var(--shadow-photo);
  border: 1px solid var(--hairline);
}

.photo-frame img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.photo-caption {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--stone);
  margin: 0;
  padding: 0.85rem 1.1rem;
  background: var(--paper-warm);
  border-top: 1px solid var(--hairline);
  line-height: 1.5;
}

html.js .reveal-photo {
  opacity: 1;
  transform: none;
  transition: opacity 680ms var(--ease), transform 680ms var(--ease);
}

html.js .reveal-photo:not(.is-visible) img {
  opacity: 0.92;
}

html.js .reveal-photo.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.pin-group-title,
.pin-preview h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--slate);
  margin: var(--section-md) 0 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 2px solid var(--copper);
}

.byline-layout {
  max-width: calc(var(--measure) + 4rem);
}

.page-hero {
  display: grid;
  gap: var(--section-sm);
  margin-bottom: var(--section-md);
}

@media (min-width: 768px) {
  .page-hero {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: var(--section-md);
  }
}

.page-hero .photo-frame {
  margin: 0;
}

.legal-prose {
  max-width: calc(var(--measure) + 2rem);
}

.contact-note {
  font-size: 0.9375rem;
  color: var(--stone);
}

.legal-prose h2 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: 2rem;
}

/* Pinboard */
.pin-group {
  margin-bottom: var(--section-lg);
}

.pin-group h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--slate);
  margin: 0 0 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--copper);
}

.pin-card {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--paper-warm);
  transition: box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}

.pin-card:hover {
  box-shadow: var(--shadow-soft);
  border-color: rgba(184, 115, 51, 0.25);
}

.pin-card__thumb img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
}

.pin-card time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fog);
  display: block;
  margin-bottom: 0.35rem;
}

.pin-card h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
}

.pin-card h2 a {
  color: var(--slate);
  text-decoration: none;
}

.pin-card h2 a:hover {
  color: var(--copper);
  text-decoration: underline;
}

.pin-card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--stone);
}

/* Contact */
.contact-block {
  max-width: var(--measure);
}

.contact-block dl {
  margin: var(--section-sm) 0;
}

.contact-block dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fog);
  margin-top: 1.25rem;
}

.contact-block dd {
  margin: 0.35rem 0 0;
  font-size: 1.0625rem;
}

/* Corrections */
.correction-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.correction-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--hairline);
}

.correction-list time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fog);
  display: block;
  margin-bottom: 0.35rem;
}

/* Maps */
.map {
  margin-top: var(--section-lg);
}

.map-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fog);
  margin: 0 0 0.5rem;
}

.map-frame {
  position: relative;
  width: 100%;
}

.map-frame iframe {
  width: 100%;
  border: 0;
  display: block;
}

.map-frame iframe[hidden],
.map-placeholder[hidden] {
  display: none !important;
}

.map-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: rgba(26, 34, 40, 0.05);
  border: 1px solid var(--hairline);
  text-align: center;
  padding: 1.5rem;
  color: var(--stone);
  font-size: 0.9375rem;
}

.map-load-btn {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--copper);
  background: transparent;
  color: var(--slate);
  cursor: pointer;
}

.map-load-btn:hover {
  background: rgba(184, 115, 51, 0.12);
}

.map-note {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--fog);
  margin: 0.5rem 0 0;
}

.map-a-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: var(--section-md);
}

.map-a-copy {
  max-width: var(--measure);
}

.map-a-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fog);
  margin: 0 0 0.35rem;
}

.map-a-text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--stone);
}

.map-a .map-frame iframe,
.map-a .map-placeholder {
  min-height: 420px;
  height: 420px;
}

.map-a iframe {
  filter: saturate(0.88) contrast(1.02);
  border: 1px solid var(--copper);
}

.map-b {
  padding: 0;
}

.map-b iframe,
.map-b .map-placeholder {
  height: 180px;
}

.map-b iframe {
  filter: saturate(0.82) brightness(0.97);
}

.map-c {
  padding-top: var(--section-sm);
  border-top: 1px solid var(--hairline);
}

.map-c iframe,
.map-c .map-placeholder {
  height: 280px;
}

.map-c iframe {
  filter: saturate(0.9);
  border: 1px solid var(--hairline);
}

.map-d iframe,
.map-d .map-placeholder {
  height: 160px;
}

.map-d iframe {
  border: 1px solid var(--hairline);
  border-radius: 2px;
}

/* Footer */
.site-footer {
  margin-top: var(--section-xl);
  padding: var(--section-md) 0 var(--section-lg);
  border-top: 1px solid var(--hairline);
  background: var(--slate-deep);
  color: rgba(245, 242, 235, 0.88);
}

.footer-inner {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  font-size: 0.9375rem;
  color: rgba(245, 242, 235, 0.82);
  line-height: 1.7;
}

.footer-inner p {
  margin: 0 0 0.75rem;
}

.footer-title {
  color: var(--paper);
  font-family: var(--font-serif);
  font-size: 1.05rem;
}

.footer-inner a {
  color: var(--copper-soft);
}

.footer-inner a:hover {
  color: var(--paper);
}

.footer-links {
  margin-top: 1rem;
}

.footer-links a {
  margin-right: 1rem;
}

.footer-build {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(245, 242, 235, 0.45);
  margin-top: 1.25rem !important;
}

/* Cookie banner */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--slate);
  color: var(--paper);
  padding: 1rem var(--gutter);
  box-shadow: 0 -4px 24px rgba(15, 20, 24, 0.22);
}

#cookie-banner[hidden] {
  display: none;
}

.cookie-inner {
  max-width: var(--shell-max);
  margin: 0 auto;
}

.cookie-text {
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0 0 0.85rem;
}

.cookie-text a {
  color: var(--paper);
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cookie-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.55rem 0.9rem;
  border: 1px solid rgba(240, 237, 230, 0.35);
  background: transparent;
  color: var(--paper);
  cursor: pointer;
}

.cookie-btn:hover {
  background: rgba(240, 237, 230, 0.1);
}

.cookie-accept {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--paper);
}

#cookie-panel {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(240, 237, 230, 0.2);
}

#cookie-panel[hidden] {
  display: none;
}

.cookie-panel-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.cookie-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0;
  font-size: 0.8125rem;
}

.cookie-toggle {
  min-width: 3rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(240, 237, 230, 0.35);
  background: transparent;
  color: var(--paper);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
}

.cookie-toggle.is-on {
  background: var(--copper);
  color: var(--paper);
  border-color: var(--copper);
}

.cookie-toggle.is-locked {
  opacity: 0.55;
  cursor: not-allowed;
}

.manage-cookies-btn {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--hairline);
  background: transparent;
  color: var(--slate);
  cursor: pointer;
  margin-top: 1rem;
}

.manage-cookies-btn:hover {
  background: rgba(184, 115, 51, 0.1);
}

/* 404 */
.error-page {
  text-align: center;
  padding: var(--section-lg) var(--gutter);
  max-width: 36rem;
  margin: 0 auto;
}

.error-page .photo-frame {
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}

.error-page h1 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--fog);
  margin-bottom: 1.5rem;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js .reveal-photo,
  html.js .sidenote-tick {
    opacity: 1;
    transform: none;
  }

  html.js .sidenote.is-visible p {
    background-size: 100% 1px;
  }
}

/* Responsive */
@media (max-width: 900px) {
  .article-grid {
    grid-template-columns: 1fr;
  }

  .margin-rail {
    display: grid;
    gap: 1rem;
    padding-top: var(--section-sm);
    border-top: 1px solid var(--hairline);
  }

  .pin-card {
    grid-template-columns: 7rem 1fr;
  }

  .page-hero {
    grid-template-columns: 1fr;
  }

  .map-a .map-frame iframe,
  .map-a .map-placeholder {
    min-height: 280px;
    height: 280px;
  }

  .map-b iframe,
  .map-b .map-placeholder {
    height: 140px;
  }
}

@media (max-width: 560px) {
  .pin-card {
    grid-template-columns: 1fr;
  }

  .pin-card__thumb {
    max-width: 100%;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}