/*
===============================================================================
YUNUS EMRE VURGUN — "FIELD" BRAND LAYER
===============================================================================
Loaded after ui-rebuild.css (which owns structure, grids and responsive
behaviour) and variables.css (which owns every token). This file owns the
brand's look:

  · the page is an overcast sky; content sits on stone, like the caps of a
    dry-stone wall; ink is the pine stand in shadow; moss green is the one
    action colour and the gold birch is the single lit highlight.
  · the shape language is cut stone and milled plate: small firm radii, square
    keys, plates with rivets; edges where a section meets the page are a
    ridge line and a steel scale (blueprint.css), never scallops.
  · motion is short and settles without bounce, and it exists only where
    something is pressable. Everything reads fully with animation disabled.

Never hard-code a colour here: consume the tokens in variables.css.
===============================================================================
*/

/* ===== BASE ===== */
:root {
  /* Depth of the edge strip that closes a sheet (the scale; see blueprint.css). */
  --lobe: 14px;
  color-scheme: light;
}

html {
  background-color: var(--color-bg-primary);
}

body {
  color-scheme: light;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  --color-control-border: #6f8172;
  overflow-x: clip;
}

.ui-page {
  overflow-x: clip;
}

::selection {
  background-color: var(--color-fog);
  color: var(--color-pine);
}

a {
  color: var(--color-accent);
}

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

:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.ui-skip-link {
  position: absolute;
  left: var(--space-4);
  top: -80px;
  z-index: 1200;
  padding: var(--space-3) var(--space-5);
  background: var(--color-pine);
  color: var(--color-text-inverse);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-weight: 600;
}

.ui-skip-link:focus {
  top: var(--space-3);
}

h1,
h2,
h3,
h4,
h5,
h6,
.ui-section-title,
.ui-card-title,
.ui-feed-title,
.ui-project-title,
.ui-more-title {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.15;
  color: var(--color-text-primary);
}

.ui-section-title {
  font-size: clamp(2rem, 4.4vw, 3.25rem);
  max-width: 20ch;
  font-weight: 600;
}

.ui-eyebrow {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.ui-section-text {
  color: var(--color-text-secondary);
}

/* ===== NAVBAR ===== */
.ui-navbar-wrap {
  background: color-mix(in srgb, var(--color-bg-card) 94%, transparent);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 0;
  box-shadow: 0 1px 0 var(--color-border), 0 8px 24px -16px rgba(16, 26, 19, 0.35);
}

.ui-navbar {
  padding: 0 var(--space-8);
  /* The wrap grows to fit the announcement strip, which leaves a percentage
     height with nothing to resolve against; give the bar its own height so
     the links and the mark are centred in a full-height row. */
  min-height: var(--navbar-height);
}

.ui-nav-left {
  gap: var(--space-8);
}

.ui-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-pine);
}

.ui-wordmark:hover {
  opacity: 1;
  color: var(--color-pine);
}

.ui-wordmark-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 8px;
  transition: transform 260ms var(--ease-settle);
}

.ui-wordmark:hover .ui-wordmark-mark {
  transform: rotate(-4deg);
}

.ui-nav-links {
  gap: var(--space-2);
}

.ui-nav-link,
.ui-nav-link-more {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-pine);
  padding: 10px 16px;
  border-radius: var(--radius-md);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    transform 260ms var(--ease-settle);
}

.ui-nav-link:hover,
.ui-nav-link-more:hover {
  color: var(--color-pine);
  background: var(--color-fog-soft);
}

.ui-nav-link.is-active,
.ui-nav-link-more.is-active {
  color: var(--color-text-inverse);
  background: var(--color-pine);
  text-decoration: none;
}

.ui-nav-link:active,
.ui-nav-link-more:active {
  transform: translateY(1px);
}

/* the current page also carries a birch rule under its label */
.ui-nav-link.is-active,
.ui-nav-link-more.is-active {
  box-shadow: inset 0 -3px 0 var(--color-lit);
}

.ui-mobile-toggle {
  color: var(--color-pine);
  border-radius: var(--radius-md);
  background: var(--color-fog-soft);
}

.ui-mobile-toggle:hover,
.ui-mobile-toggle:focus-visible {
  color: var(--color-pine);
  background: var(--color-fog);
}

.ui-mobile-toggle span {
  height: 3px;
  border-radius: 3px;
}

/* Mobile sheet */
.ui-mobile-panel {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

.ui-mobile-close {
  color: var(--color-pine);
  background: var(--color-fog-soft);
  border-radius: var(--radius-md);
  margin-left: auto;
}

.ui-mobile-close:hover,
.ui-mobile-close:focus {
  color: var(--color-pine);
  background: var(--color-fog);
}

.ui-mobile-links {
  gap: var(--space-1);
}

.ui-mobile-links li {
  border-bottom: 0;
}

.ui-mobile-links a {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-pine);
  border-radius: var(--radius-lg);
  min-height: 48px;
}

.ui-mobile-links a:hover,
.ui-mobile-links a:focus {
  color: var(--color-pine);
  background: var(--color-fog-soft);
  padding-left: var(--space-4);
}

.ui-mobile-links a:focus-visible {
  box-shadow: none;
}

/* Announcement strip: pine, with a birch marker. */
.ebook-notice {
  background: var(--color-pine);
  border-bottom: 0;
}

.ebook-notice-marker {
  color: var(--pine-900);
  background: var(--color-lit);
  padding: 2px 8px 3px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}

.ebook-notice-text {
  color: var(--color-fog-soft);
}

.ebook-notice-text strong {
  color: var(--color-text-inverse);
  font-weight: 600;
}

.ebook-notice-cta {
  color: var(--color-text-inverse);
}

.ebook-notice-cta:hover {
  color: var(--color-fog);
}

.ebook-notice-dismiss {
  color: var(--color-fog-soft);
}

.ebook-notice-dismiss:hover {
  color: var(--color-text-inverse);
}

/* ===== PAGE HEADER — the fog sheet ===== */
/* Every inner page opens with one section (eyebrow, title, intro). That
   section is drawn as a full-bleed band of fog; blueprint.css lays the survey
   sheet over it (contours, grid, the ridge from the fog photograph, the scale)
   and stands the pine stand from the portrait at its right edge. */
.ui-main > .ui-section:first-of-type {
  position: relative;
  isolation: isolate;
  padding-bottom: var(--space-4);
  margin-bottom: calc(var(--space-16) + var(--lobe));
}

.ui-main > .ui-section:first-of-type::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -400px;
  bottom: calc(-1 * var(--space-8));
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background: var(--color-fog-soft);
}

.ui-main > .ui-section:first-of-type .ui-section-text,
.ui-main > .ui-section:first-of-type .ui-section-text a {
  color: var(--color-pine);
}

.ui-main > .ui-section:first-of-type .ui-section-text a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* In the page header the eyebrow is a pine label (blueprint.css turns it into a riveted plate). */
.ui-main > .ui-section:first-of-type > .ui-eyebrow {
  display: inline-block;
  background: var(--color-pine);
  color: var(--color-text-inverse);
  text-transform: none;
  letter-spacing: 0.02em;
  font-weight: 500;
  padding: 4px 16px 5px;
  border-radius: var(--radius-sm);
}

/* ===== BUTTONS ===== */
.ui-btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  padding: 11px 24px 12px;
  border-radius: var(--radius-md);
  border-width: 2px;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform 320ms var(--ease-settle),
    box-shadow 200ms ease;
}

.ui-btn-primary {
  background: var(--color-action);
  border-color: var(--color-action);
  color: var(--color-text-inverse);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 3px 0 var(--pine-900), 0 8px 14px -8px rgba(16, 26, 19, 0.55);
}

.ui-btn-primary:hover {
  background: var(--color-action-hover);
  border-color: var(--color-action-hover);
  color: var(--color-text-inverse);
  transform: translateY(1px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 2px 0 var(--pine-900), 0 6px 12px -8px rgba(16, 26, 19, 0.55);
}

.ui-btn-secondary {
  background: var(--color-bg-card);
  border-color: var(--color-pine);
  color: var(--color-pine);
  box-shadow: 0 3px 0 var(--color-pine);
}

.ui-btn-secondary:hover {
  background: var(--color-fog-soft);
  border-color: var(--color-pine);
  color: var(--color-pine);
  transform: translateY(1px);
}

.ui-btn:active {
  transform: translateY(3px);
  box-shadow: none;
}

/* Bare <button class="ui-btn"> in forms and the generic submit affordances */
button.ui-btn {
  cursor: pointer;
}

/* ===== SURFACES — stone cards ===== */
.ui-glass-panel,
.ui-feed-card,
.ui-video-card,
.ui-stat-card,
.ui-empty,
.ui-project-card,
.ui-more-card,
.ui-x-popup-panel,
.ui-landing-study figure,
.ui-record-section {
  background: var(--color-bg-card);
  border: 0;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.ui-glass-panel {
  padding: var(--space-8);
}

.ui-empty {
  padding: var(--space-8);
  color: var(--color-text-secondary);
}

.ui-feed-card {
  padding: var(--space-6) var(--space-8);
  transition: transform 320ms var(--ease-settle), box-shadow 200ms ease;
}

.ui-feed-card:hover,
.ui-more-card:hover,
.ui-video-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.ui-feed-list {
  gap: var(--space-5);
}

.ui-feed-title a {
  color: var(--color-text-primary);
}

.ui-feed-title a:hover {
  color: var(--color-accent);
}

.ui-feed-meta,
.ui-card-meta,
.ui-project-meta,
.ui-reading-date {
  color: var(--color-text-tertiary);
  text-transform: none;
  letter-spacing: 0.01em;
  font-size: var(--text-sm);
}

.ui-feed-text,
.ui-card-text,
.ui-project-desc,
.ui-more-desc,
.ui-video-desc {
  color: var(--color-text-secondary);
}

.ui-update-avatar {
  border-radius: var(--radius-full);
  background: var(--color-fog-soft);
}

.ui-figure img,
.ui-landing-study img,
.ui-masthead-figure img {
  border: var(--figure-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  background: var(--color-bg-card);
}

.ui-figure-caption,
.ui-landing-study figcaption,
.ui-masthead-figure figcaption {
  color: var(--color-text-tertiary);
}

/* Explore / site index: a grid of stone tiles */
.ui-more-grid {
  border-bottom: 0;
  gap: var(--space-5);
  column-gap: var(--space-5);
  margin-top: var(--space-6);
}

.ui-more-card {
  border-top: 0;
  padding: var(--space-6);
  grid-template-columns: 3.25rem minmax(0, 1fr);
  align-content: start;
  transition: transform 320ms var(--ease-settle), box-shadow 200ms ease;
}

.ui-more-card:hover {
  background: var(--color-bg-card);
}

.ui-more-card:hover .ui-more-title {
  text-decoration: none;
  color: var(--color-accent);
}

.ui-more-icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-md);
  background: var(--color-fog);
  color: var(--color-pine);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
}

.ui-more-icon svg {
  display: block;
  width: 1.3rem;
  height: 1.3rem;
}

.ui-more-title {
  font-weight: 600;
}

/* Projects */
.ui-project-grid {
  border-bottom: 0;
  gap: var(--space-5);
}

.ui-project-card {
  border-top: 0;
  padding: var(--space-6);
}

.ui-project-card .ui-media {
  border: 0;
  border-radius: var(--radius-lg);
}

.ui-tech-tag {
  background: var(--color-fog-soft);
  border: 0;
  color: var(--color-pine);
  border-radius: var(--radius-sm);
  padding: 3px 10px 4px;
  font-weight: 500;
}

.ui-case-link {
  color: var(--color-accent);
}

.ui-case-link:hover {
  color: var(--color-accent-hover);
}

/* About / record */
.ui-record {
  gap: var(--space-5);
  max-width: 860px;
}

.ui-record-section,
.ui-record-section:first-child {
  border-top: 0;
  padding: var(--space-8);
}

.ui-record-heading {
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.ui-record-body {
  color: var(--color-text-primary);
}

.ui-card-list li {
  border-bottom-color: var(--color-border);
}

/* Timeline */
.ui-timeline-item {
  border-left: 3px solid var(--color-fog);
}

.ui-timeline-item::before {
  left: -8px;
  width: 13px;
  height: 13px;
  border-radius: var(--radius-full);
  background: var(--color-lit);
  box-shadow: 0 0 0 3px var(--color-bg-primary), 0 0 0 4px var(--color-pine);
}

/* Reading list */
.ui-reading-list {
  border-bottom: 0;
  gap: var(--space-3);
}

.ui-reading-list a {
  border-top: 0;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform 320ms var(--ease-settle), box-shadow 200ms ease;
}

.ui-reading-list a:hover {
  background: var(--color-bg-card);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.ui-reading-title {
  color: var(--color-text-primary);
  font-family: var(--font-display);
  font-weight: 500;
}

.ui-reading-list a:hover .ui-reading-title {
  text-decoration: none;
  color: var(--color-accent);
}

.ui-reading-excerpt {
  color: var(--color-text-secondary);
}

/* Document links */
.ui-doc-links {
  border-top: 2px dotted var(--color-border-strong);
}

.ui-doc-links a,
.ui-doc-link-btn {
  color: var(--color-accent);
  font-weight: 600;
}

.ui-doc-links a:hover,
.ui-doc-link-btn:hover {
  color: var(--color-accent-hover);
}

/* ===== CONTROLS ===== */
.ui-input,
input[type="text"].ui-input,
textarea.ui-input,
select.ui-input {
  background: #fff;
  border: 2px solid var(--color-control-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  padding: 12px 16px;
  transition: border-color var(--transition-fast), box-shadow 200ms ease, transform 260ms var(--ease-settle);
}

.ui-input:hover {
  border-color: var(--pine-600);
}

.ui-input:focus {
  outline: 0;
  border-color: var(--color-pine);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(227, 162, 39, 0.4);
}

.ui-input::placeholder {
  color: var(--color-text-tertiary);
}

.ui-field-label {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-text-primary);
}

.ui-captcha-question {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-5);
  box-shadow: var(--shadow-sm);
}

.ui-captcha-refresh {
  background: var(--color-fog-soft);
  border-radius: var(--radius-md);
  color: var(--color-pine);
}

.ui-captcha-refresh:hover {
  background: var(--color-fog);
  color: var(--color-pine);
}

/* Tags, filter keys, pagination: small square keys */
.ui-tag,
.ui-filter-pill,
.ui-page-link {
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-pine);
  background: var(--color-bg-card);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    transform 300ms var(--ease-settle);
}

.ui-tag {
  font-size: var(--text-sm);
  padding: 4px 14px 5px;
}

.ui-filter-pill {
  font-size: var(--text-sm);
  padding: 6px 18px 7px;
}

.ui-tag:hover,
.ui-filter-pill:hover,
.ui-page-link:hover {
  color: var(--color-pine);
  background: var(--color-fog-soft);
  border-color: transparent;
  transform: translateY(-1px);
}

.ui-tag.is-active,
.ui-filter-pill.is-active,
.ui-page-link.is-active {
  color: var(--color-text-inverse);
  background: var(--color-pine);
}

.ui-page-link {
  min-width: 42px;
  height: 42px;
}

.ui-page-link.is-disabled {
  color: var(--color-text-tertiary);
  box-shadow: none;
  background: var(--color-surface-alt);
}

/* Video tiles */
.ui-video-card {
  border: 0;
  transition: transform 320ms var(--ease-settle), box-shadow 200ms ease;
}

.ui-video-title {
  font-weight: 600;
}

.ui-video-duration,
.ui-video-platform {
  background: var(--color-fog-soft);
  color: var(--color-pine);
  border: 0;
  border-radius: var(--radius-sm);
  padding: 2px 8px 3px;
}

.ui-video-play-btn {
  background: var(--color-action);
  border: 3px solid var(--stone-50);
}

.ui-video-play-btn:hover {
  background: var(--color-action-hover);
}

.ui-video-embed-container {
  background: var(--pine-900);
}

/* Socials */
.ui-socials-list {
  border-bottom: 0;
  gap: var(--space-3);
  column-gap: var(--space-5);
}

.ui-socials-item {
  border-top: 0;
}

.ui-socials-link {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-3) var(--space-5);
  transition: transform 320ms var(--ease-settle), background-color var(--transition-fast);
}

.ui-socials-link:hover {
  background: var(--color-bg-card);
  transform: translateY(-2px);
}

.ui-socials-icon {
  color: var(--color-pine);
}

/* Travel */
.ui-map-view-container {
  border: 6px solid var(--color-bg-card);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.leaflet-tile-pane {
  filter: none;
}

.ui-travel-stats-strip {
  border-bottom: 0;
  gap: var(--space-4);
}

.ui-travel-stat {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-6);
  box-shadow: var(--shadow-sm);
}

.ui-travel-stat-value {
  font-family: var(--font-display);
  color: var(--color-accent);
}

.ui-travel-stat-label {
  color: var(--color-text-tertiary);
  text-transform: none;
  letter-spacing: 0;
  font-size: var(--text-sm);
}

.ui-map-dot-core {
  width: 14px;
  height: 14px;
  border-radius: var(--radius-full);
  background: var(--color-lit);
  border: 3px solid var(--pine-800);
  box-shadow: 0 2px 6px rgba(16, 26, 19, 0.4);
}

.leaflet-popup-content-wrapper {
  background: var(--color-bg-card) !important;
  color: var(--color-text-primary) !important;
  border-radius: var(--radius-lg) !important;
  border: 0;
  box-shadow: var(--shadow-lg) !important;
}

.leaflet-popup-tip {
  background: var(--color-bg-card) !important;
}

/* Gallery slideshow */
.ui-slideshow-arrow {
  border-radius: var(--radius-md);
}

/* ===== RICH CONTENT (blog posts, updates — including archived production posts) ===== */
/* Arbitrary author-written HTML lands here, so every element the sanitizer
   permits gets a considered style: p, headings, lists, blockquote, code, pre,
   img, figure, hr, table, sub/sup. Nothing relies on inline colour. */
article > .ui-rich-content,
.ui-rich-content {
  color: var(--color-text-primary);
  overflow-wrap: anywhere;
}

article:has(> .ui-rich-content) {
  background: var(--color-bg-card);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  padding: clamp(var(--space-5), 4vw, var(--space-12));
}

article:has(> .ui-rich-content) > .ui-figure img {
  width: 100%;
  border-radius: var(--radius-xl);
  border: 0;
  box-shadow: none;
}

.ui-rich-content h1,
.ui-rich-content h2,
.ui-rich-content h3,
.ui-rich-content h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text-primary);
}

.ui-rich-content h2 {
  font-size: var(--text-3xl);
}

.ui-rich-content a {
  color: var(--color-accent);
  text-decoration-thickness: 2px;
  text-decoration-color: rgba(53, 82, 56, 0.4);
  text-underline-offset: 3px;
}

.ui-rich-content a:hover {
  color: var(--color-accent-hover);
  text-decoration-color: currentColor;
}

.ui-rich-content ul li::marker {
  color: var(--birch-600);
}

.ui-rich-content ol li::marker {
  color: var(--color-accent);
  font-weight: 700;
}

.ui-rich-content blockquote {
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  font-style: normal;
  color: var(--color-text-secondary);
}

.ui-rich-content code {
  background: var(--color-fog-soft);
  color: var(--pine-800);
  border-radius: 4px;
}

.ui-rich-content pre {
  background: var(--pine-800);
  color: var(--color-stone);
  border-radius: var(--radius-lg);
}

.ui-rich-content pre code {
  background: none;
  color: inherit;
}

.ui-rich-content img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.ui-rich-content hr {
  border-top: 2px dashed var(--color-fog);
}

.ui-rich-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1.5em 0;
  font-size: var(--text-sm);
  display: block;
  overflow-x: auto;
}

.ui-rich-content th,
.ui-rich-content td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.ui-rich-content th {
  background: var(--color-fog-soft);
  color: var(--color-pine);
  font-family: var(--font-display);
  font-weight: 600;
}

.ui-rich-content figure {
  margin: 1.5em 0;
}

.ui-rich-content figcaption {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
}

/* ===== FOOTER ===== */
/* Pine, the darkest tone of the stand; blueprint.css hangs the scale from its top edge. */
.ui-footer,
.ui-landing-footer {
  position: relative;
  margin-top: calc(var(--lobe) + var(--space-8));
  background: var(--color-bg-dark);
  color: var(--color-fog-soft);
  border-top: 0;
}

.ui-footer::before,
.ui-landing-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  pointer-events: none;
  z-index: 1; /* over the cameo */
}

.ui-footer-name,
.ui-footer-heading {
  color: var(--color-text-inverse);
}

.ui-footer-name {
  font-weight: 600;
  font-size: var(--text-xl);
}

.ui-footer-heading {
  color: var(--color-fog);
  letter-spacing: 0.1em;
  font-family: var(--font-display);
  font-weight: 500;
}

.ui-footer-tag,
.ui-footer-copy,
.ui-landing-footer-copy {
  color: var(--color-fog-soft);
}

.ui-footer a,
.ui-footer-list a,
.ui-footer-socials a,
.ui-footer-socials button.ui-footer-social-btn,
.ui-landing-footer a,
.ui-landing-footer-nav a {
  color: var(--color-text-inverse);
}

.ui-footer a:hover,
.ui-footer-list a:hover,
.ui-footer-socials a:hover,
.ui-footer-socials button.ui-footer-social-btn:hover,
.ui-landing-footer a:hover,
.ui-landing-footer-nav a:hover {
  color: var(--color-fog);
}

.ui-footer :focus-visible,
.ui-landing-footer :focus-visible {
  outline-color: var(--color-fog);
}

.ui-footer-social-icon {
  color: var(--color-fog);
}

.ui-landing-footer-nav a {
  font-family: var(--font-display);
  font-weight: 500;
}

/* X popup */
.ui-x-popup-panel {
  padding: var(--space-8) var(--space-6);
  box-shadow: var(--shadow-xl);
}

.ui-x-popup-close {
  border-radius: var(--radius-md);
  background: var(--color-fog-soft);
  color: var(--color-pine);
}

.ui-x-popup-icon {
  color: var(--color-pine);
}

.ui-x-popup-title {
  font-weight: 600;
}

/* ===== LANDING PAGE ===== */
body.ui-landing {
  background-color: var(--color-bg-primary);
}

.ui-masthead {
  position: relative;
  isolation: isolate;
  border-bottom: 0;
  padding-bottom: var(--space-8);
  margin-bottom: calc(var(--space-12) + var(--lobe));
}

.ui-masthead::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -400px;
  bottom: calc(-1 * var(--space-4));
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background: var(--color-fog-soft);
}

.ui-masthead-grid {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 400px);
  align-items: center;
  gap: var(--space-12);
}

.ui-masthead-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-text-inverse);
  background: var(--color-pine);
  padding: 4px 16px 5px;
  border-radius: var(--radius-sm);
}

.ui-masthead-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.9rem, 7.4vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  color: var(--pine-800);
}

.ui-masthead-role {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 500;
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  color: var(--color-pine);
}

.ui-masthead-lede {
  color: var(--pine-800);
}

.ui-masthead-facts {
  border-top: 0;
  display: grid;
  gap: var(--space-2);
}

.ui-masthead-fact {
  background: rgba(247, 248, 246, 0.9);
  border-bottom: 0;
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-5);
  box-shadow: var(--shadow-sm);
}

.ui-masthead-fact-term {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-accent);
}

.ui-masthead-fact-value {
  color: var(--color-text-primary);
}

/* The counts on the "This site" row link to the sections they count. */
.ui-masthead-fact-value a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.ui-masthead-fact-value a:hover {
  color: var(--color-action);
  text-decoration-color: currentColor;
}

.ui-masthead-links {
  gap: var(--space-3);
}

.ui-masthead-links a {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-pine);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  padding: 9px 20px 10px;
  text-decoration: none;
  box-shadow: 0 3px 0 var(--color-pine);
  border: 2px solid var(--color-pine);
  transition: transform 320ms var(--ease-settle), background-color var(--transition-fast);
}

.ui-masthead-links a:first-child {
  background: var(--color-action);
  border-color: var(--pine-900);
  color: var(--color-text-inverse);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18), 0 3px 0 var(--pine-900), 0 8px 14px -8px rgba(16, 26, 19, 0.55);
}

.ui-masthead-links a:hover {
  transform: translateY(1px);
  background: var(--color-fog-soft);
  color: var(--color-pine);
}

.ui-masthead-links a:first-child:hover {
  background: var(--color-action-hover);
  color: var(--color-text-inverse);
}

.ui-masthead-links a:active {
  transform: translateY(3px);
}

.ui-brief-title {
  font-weight: 600;
}

.ui-landing-study figure {
  padding: var(--space-3);
}

.ui-landing-study figure img {
  border: 0;
  box-shadow: none;
}

.ui-landing-study figcaption {
  padding: var(--space-2) var(--space-3) var(--space-1);
}

.ui-landing-study-figures {
  display: grid;
  gap: var(--space-5);
}

/* ===== MOTION POLICY ===== */
@media (prefers-reduced-motion: reduce) {
  .ui-wordmark:hover .ui-wordmark-mark {
    transform: none !important;
  }

  .ui-btn:hover,
  .ui-btn:active,
  .ui-tag:hover,
  .ui-filter-pill:hover,
  .ui-page-link:hover,
  .ui-feed-card:hover,
  .ui-more-card:hover,
  .ui-video-card:hover,
  .ui-masthead-links a:hover,
  .ui-masthead-links a:active,
  .ui-nav-link:active {
    transform: none !important;
  }
}

/* ===== ERROR / EMPTY STATE MARK ===== */
.ui-mascot-note {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.ui-mascot-note img {
  width: 120px;
  height: 120px;
  border-radius: 22px;
  box-shadow: var(--shadow-md);
}

/* ===== PRINT ===== */
@media print {
  .ui-main > .ui-section:first-of-type::before,
  .ui-main > .ui-section:first-of-type::after,
  .ui-masthead::before,
  .ui-footer::before,
  .ui-landing-footer::before {
    display: none !important;
  }

  article:has(> .ui-rich-content) {
    box-shadow: none !important;
    padding: 0;
  }
}

/* ===== HOME: PHOTO DECK ===== */
/* Two stone cards overlapped like a hand of cards. The one behind is tilted,
   smaller and a touch faded; clicking it flips it to the front. */
.ui-landing-study-figures.is-deck {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1.14;
  max-width: 480px;
  width: 100%;
  justify-self: center;
}

.is-deck > figure {
  position: absolute;
  width: 78%;
  margin: 0;
  transition: transform 520ms var(--ease-settle), opacity 320ms ease, filter 320ms ease, box-shadow 320ms ease;
  will-change: transform;
  backface-visibility: hidden;
  overflow: hidden;
}

.is-deck > figure img {
  aspect-ratio: 1 / 1.1;
  object-fit: cover;
}

.is-deck > figure:nth-child(2) img { object-position: 50% 25%; }

.is-deck > figure.is-front {
  z-index: 2;
  top: 0;
  left: 0;
  transform: rotate(-2deg);
}

.is-deck > figure:not(.is-front) {
  z-index: 1;
  top: 8%;
  right: 0;
  transform: translate(0, 0) rotate(5deg) scale(0.94);
  opacity: 0.88;
  filter: saturate(0.85) brightness(0.97);
  cursor: pointer;
}

.is-deck > figure:not(.is-front):hover,
.is-deck > figure:not(.is-front):focus-visible {
  transform: translate(2%, -1%) rotate(3deg) scale(0.96);
  opacity: 1;
  filter: none;
}

.is-deck > figure.is-flipping {
  animation: deck-flip 640ms var(--ease-settle);
}

@keyframes deck-flip {
  0% { transform: perspective(900px) rotateY(-90deg) rotate(5deg) scale(0.94); }
  100% { transform: perspective(900px) rotateY(0) rotate(-2deg) scale(1); }
}

/* Soft glare: a diagonal sheen that tracks the pointer on the front card. */
.is-deck > figure::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at var(--gx, 30%) var(--gy, 20%), rgb(255 255 255 / 0.5), transparent 45%),
    linear-gradient(115deg, transparent 38%, rgb(255 255 255 / 0.28) 48%, transparent 58%);
  mix-blend-mode: soft-light;
  transition: opacity 300ms ease;
}

.is-deck > figure.is-front:hover::after,
.is-deck > figure.is-flipping::after {
  opacity: 1;
}

.is-deck > figure.is-front::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 30%, rgb(255 255 255 / 0.35) 45%, transparent 60%) -120% 0 / 250% 100% no-repeat;
}

.is-deck > figure.is-flipping::before {
  animation: deck-glint 900ms ease-out 150ms both;
}

@keyframes deck-glint {
  to { background-position: 120% 0; }
}

.is-deck figcaption {
  position: relative;
}

@media (max-width: 800px) {
  .ui-landing-study-figures.is-deck { max-width: 400px; }
}

@media (prefers-reduced-motion: reduce) {
  .is-deck > figure { transition: none; }
  .is-deck > figure.is-flipping,
  .is-deck > figure.is-flipping::before { animation: none; }
}

/* A site-index card without the numbered badge: one column, title over description.
   Higher specificity than the two-column rules above, so source order does not matter. */
.ui-more-card.ui-more-card--plain {
  grid-template-columns: minmax(0, 1fr);
}