/* Full-viewport wallpaper demo; production styles stay untouched.
   Background mechanism adapted from dmego/home.github.io (MIT, Copyright (c) 2017 Dmego):
   fixed cover image layer, separate dark scrim, content scrolling above.
   Implementation and styles are written for this project. */
:root {
  --wp-ink: #f5f2e9;
  --wp-ink-soft: #ded9cb;
  --wp-ink-muted: #bab4a5;
  --wp-brass: #c8b88f;
  --wp-scrim-opacity: 0.55;
  --wp-panel: rgba(11, 20, 16, 0.78);
  --wp-line: rgba(245, 242, 233, 0.16);
  --wp-serif: "Songti SC", "STSong", "Noto Serif SC", "SimSun", Georgia, serif;
  --wp-sans: "PingFang SC", "Microsoft YaHei", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  --wp-gap: clamp(18px, 2.6vw, 36px);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
  background-color: #0d1613;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--wp-ink);
  font-family: var(--wp-sans);
  font-size: 17px;
  line-height: 1.75;
  background: transparent;
  -webkit-font-smoothing: antialiased;
}

a { text-underline-offset: .25em; }
a:focus-visible,
button:focus-visible { outline: 2px solid var(--wp-brass); outline-offset: 5px; }

.shell {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 48px);
}

/* Fixed wallpaper layer: image below scrim, neither receives pointer events.
   The CSS default is the first entry of WALLPAPERS in js/demo-wallpaper.js. */
.wallpaper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100lvh;
  z-index: 0;
  overflow: hidden;
  background: #0d1613;
  pointer-events: none;
}

.wallpaper__image {
  position: absolute;
  inset: 0;
  background-color: #0d1613;
  background-image: url("../photos/full/photo_053.jpg");
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
}

.wallpaper__scrim {
  position: absolute;
  inset: 0;
  background: #071009;
  opacity: var(--wp-scrim-opacity);
}

header,
main { position: relative; z-index: 1; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 16px;
  color: #0b1310;
  background: var(--wp-ink);
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

/* Hero */
.hero {
  min-height: 100svh;
  padding-bottom: clamp(36px, 6vh, 68px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.site-nav {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.wordmark {
  font-family: var(--wp-serif);
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: .035em;
  white-space: nowrap;
}
.site-nav__links { display: flex; align-items: center; gap: 28px; }
.site-nav__links a {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.site-nav__links a:hover { color: var(--wp-brass); }

.hero__intro {
  max-width: 900px;
  padding-block: clamp(44px, 8vh, 104px) clamp(32px, 5vh, 56px);
  text-shadow: 0 1px 24px rgba(4, 10, 7, .55);
}
.hero__eyebrow {
  margin-bottom: 18px;
  color: var(--wp-brass);
  font-size: 15px;
  letter-spacing: .16em;
}
h1,
h2 {
  font-family: var(--wp-serif);
  font-weight: 400;
  letter-spacing: -.035em;
}
h1 {
  font-size: clamp(38px, 5.4vw, 78px);
  line-height: 1.12;
}
.hero__lede {
  margin-top: 22px;
  max-width: 32em;
  color: var(--wp-ink-soft);
  line-height: 1.85;
}

.portals {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--wp-gap);
}
.portal { min-width: 0; }
.portal__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.portal__heading h2 { font-size: 30px; line-height: 1.3; }
.action-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
}
.action-link span { display: inline-block; }
.portal__media {
  width: 100%;
  aspect-ratio: 3 / 2;
  display: flex;
  overflow: hidden;
  border: 1px solid var(--wp-line);
}
.project-cover {
  position: relative;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  padding: clamp(22px, 2.8vw, 40px);
  background: rgba(9, 18, 14, .72);
}
.project-cover__image { display: none; }
.project-cover--image { padding: 0; }
.project-cover--image > span { display: none; }
.project-cover--image .project-cover__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.project-cover__kind { color: var(--wp-ink-muted); font-size: 14px; letter-spacing: .08em; }
.project-cover__title {
  font-family: Georgia, var(--wp-serif);
  font-size: clamp(36px, 4.2vw, 62px);
  line-height: 1.02;
  letter-spacing: -.035em;
}
.project-cover__title span { display: block; }
.project-cover__note { color: var(--wp-brass); font-size: 14px; }
.photo-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
}
.portal__caption {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin-top: 14px;
  font-size: 16px;
}
.portal__meta { color: var(--wp-ink-muted); font-size: 15px; }

.hero__scroll {
  margin-top: clamp(28px, 4vh, 44px);
  color: var(--wp-ink-muted);
  font-size: 14px;
  letter-spacing: .12em;
}
.hero__scroll span { display: inline-block; margin-left: 6px; }

/* Chapters: translucent panels let the wallpaper remain visible at the edges and between sections. */
.chapter { padding-block: clamp(36px, 5.5vw, 68px); }
.chapter--about { padding-bottom: clamp(48px, 7vw, 96px); }
.panel {
  padding: clamp(22px, 3.8vw, 52px);
  background: var(--wp-panel);
  border: 1px solid var(--wp-line);
}
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.section-heading h2,
.about-content h2 { font-size: clamp(30px, 3.4vw, 46px); line-height: 1.28; }
.section-heading p { max-width: 30em; color: var(--wp-ink-muted); }

.project-list { border-bottom: 1px solid var(--wp-line); }
.project-entry {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr) 28px;
  gap: 24px;
  align-items: start;
  padding: 24px 14px;
  border-top: 1px solid var(--wp-line);
}
.project-entry h3 {
  font-size: clamp(21px, 2vw, 27px);
  font-weight: 500;
  line-height: 1.45;
}
.project-entry__description { max-width: 48em; color: var(--wp-ink-soft); font-size: 16px; }
.project-entry__tags { margin-top: 10px; color: var(--wp-ink-muted); font-size: 14px; }
.project-entry__arrow { justify-self: end; font-size: 24px; line-height: 1.5; }

.photo-summary { margin-bottom: 18px; color: var(--wp-ink-muted); font-size: 15px; }
.photo-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.photo-filters[hidden] { display: none; }
.photo-filter {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  color: var(--wp-ink-soft);
  border: 1px solid var(--wp-line);
  font-size: 15px;
}
.photo-filter:hover { color: var(--wp-ink); background: rgba(245, 242, 233, .08); }
.photo-filter[aria-pressed="true"] { color: #0b1310; background: var(--wp-brass); border-color: var(--wp-brass); }
.photo-filter__count { font-size: 13px; opacity: .78; }
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 22px;
}
.photo-work { min-width: 0; margin: 0; }
.photo-work__open { display: block; width: 100%; padding: 0; overflow: hidden; }
.photo-work img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background: #16211c;
  border: 1px solid var(--wp-line);
}
.photo-work figcaption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2px 14px;
  margin-top: 9px;
  font-size: 15px;
}
.photo-work__category { color: var(--wp-ink-muted); font-size: 14px; }

.status { padding-block: 16px; color: var(--wp-ink-soft); }
.status a { text-decoration: underline; }
.photo-grid > .status { grid-column: 1 / -1; }

/* Native dialog viewer, dark-surface variant of the wallpaper demo. */
.photo-viewer {
  width: min(1200px, calc(100% - 48px));
  max-width: none;
  max-height: calc(100svh - 40px);
  margin: auto;
  padding: 24px;
  overflow-y: auto;
  color: var(--wp-ink);
  background: #0b1511;
  border: 1px solid var(--wp-line);
}
.photo-viewer::backdrop { background: rgba(4, 10, 7, .92); }
.photo-viewer__toolbar,
.photo-viewer__navigation { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.photo-viewer__toolbar { margin-bottom: 12px; }
.photo-viewer__toolbar > span,
.photo-viewer__hint { color: var(--wp-ink-muted); font-size: 14px; }
.viewer-control {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px 14px;
  color: var(--wp-ink);
  background: rgba(245, 242, 233, .1);
  border: 1px solid var(--wp-line);
}
.viewer-control:hover { background: rgba(245, 242, 233, .16); }
.viewer-control:disabled { opacity: .42; cursor: default; }
.photo-viewer__figure { margin: 0; }
#viewer-image {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: calc(100svh - 330px);
  margin-inline: auto;
  object-fit: contain;
  background: #08110d;
}
.photo-viewer__caption {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-block: 18px 20px;
}
.photo-viewer__caption h2 { font-family: var(--wp-sans); font-size: 22px; line-height: 1.5; }
#viewer-category, #viewer-counter { color: var(--wp-ink-muted); font-size: 15px; }
#viewer-counter { white-space: nowrap; padding-top: 5px; }
.photo-viewer__status { padding-bottom: 20px; color: var(--wp-ink-soft); }

.about-content {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: clamp(24px, 4vw, 56px);
}
.about-copy p { max-width: 36em; font-size: 18px; line-height: 1.85; }
.about-copy p + p { margin-top: 18px; }
.about-location { display: block; margin-top: 24px; color: var(--wp-ink-muted); font-size: 15px; }
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: 18px;
  border-top: 1px solid var(--wp-line);
}

/* Restrained feedback, limited to transform/opacity and disabled for reduced motion. */
@media (prefers-reduced-motion: no-preference) {
  [data-enter] {
    animation: wallpaper-rise 700ms cubic-bezier(.22, 1, .36, 1) both;
    animation-delay: var(--enter-delay, 0ms);
  }
  .reveal.is-revealed { animation: wallpaper-rise 700ms cubic-bezier(.22, 1, .36, 1) both; }
  .action-link span,
  .project-entry__arrow { transition: transform 180ms ease-out; }
  .action-link:hover span,
  .action-link:focus-visible span,
  .project-entry:hover .project-entry__arrow,
  .project-entry:focus-visible .project-entry__arrow { transform: translate(3px, -3px); }
  .photo-cover img { transition: transform 240ms ease-out; }
  .photo-cover:hover img,
  .photo-cover:focus-visible img { transform: scale(1.02); }
  .photo-filter,
  .viewer-control { transition: transform 160ms ease-out, background-color 160ms ease-out, color 160ms ease-out; }
  .photo-filter:active,
  .viewer-control:active { transform: scale(.97); }
  .photo-viewer[open] { animation: viewer-enter 240ms ease-out; }
  .project-entry { transition: background-color 180ms ease-out; }
  .project-entry:hover { background: rgba(245, 242, 233, .05); }
  .photo-work img { transition: transform 240ms ease-out; }
  .photo-work:hover img,
  .photo-work__open:focus-visible img { transform: scale(1.015); }
}

@keyframes wallpaper-rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes viewer-enter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .skip-link { transition: none; }
}

@media (max-width: 900px) {
  .hero { justify-content: flex-start; }
  .hero__intro { padding-block: clamp(36px, 7vh, 76px) clamp(26px, 4vh, 44px); }
  .photo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-entry { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr) 22px; gap: 18px; }
  .about-content { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 540px) {
  body { font-size: 16px; }
  .shell { padding-inline: 16px; }
  .site-nav { min-height: 68px; gap: 12px; }
  .wordmark { font-size: 20px; }
  .site-nav__links { gap: 10px; }
  .site-nav__links a { min-width: 44px; font-size: 15px; }
  .hero { padding-bottom: 30px; }
  .hero__intro { padding-block: 34px 24px; }
  .hero__eyebrow { margin-bottom: 12px; font-size: 13px; }
  h1 { font-size: clamp(34px, 9vw, 44px); }
  .hero__lede { margin-top: 14px; font-size: 16px; }
  .portals { gap: 12px; }
  .portal__heading { flex-direction: column; align-items: flex-start; gap: 0; margin-bottom: 8px; }
  .portal__heading h2 { font-size: 23px; }
  .action-link { font-size: 14px; gap: 8px; }
  .portal__media { aspect-ratio: 1 / 1; }
  .project-cover { padding: 14px; }
  .project-cover__title { font-size: clamp(19px, 5.8vw, 27px); }
  .project-cover__kind { font-size: 12px; letter-spacing: .04em; }
  .project-cover__note { display: none; }
  .portal__caption { flex-direction: column; gap: 0; margin-top: 10px; font-size: 15px; line-height: 1.5; }
  .portal__meta { font-size: 14px; }
  .hero__scroll { margin-top: 22px; font-size: 13px; }
  .chapter { padding-block: 20px; }
  .chapter--about { padding-bottom: 32px; }
  .panel { padding: 18px 16px; }
  .section-heading { flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 24px; }
  .section-heading h2,
  .about-content h2 { font-size: 30px; }
  .section-heading p { font-size: 15px; }
  .project-entry { grid-template-columns: minmax(0, 1fr) 22px; gap: 10px; padding: 18px 6px; }
  .project-entry h3 { font-size: 21px; }
  .project-entry__body { grid-column: 1 / -1; grid-row: 2; }
  .project-entry__arrow { grid-column: 2; grid-row: 1; font-size: 22px; }
  .project-entry__description { font-size: 15px; }
  .project-entry__tags { margin-top: 8px; font-size: 13px; }
  .photo-summary { margin-bottom: 16px; font-size: 14px; }
  .photo-filters { gap: 6px; margin-bottom: 16px; }
  .photo-filter { padding-inline: 12px; font-size: 14px; }
  .photo-filter__count { font-size: 12px; }
  .photo-grid { gap: 20px 12px; }
  .photo-work figcaption { flex-direction: column; gap: 0; font-size: 14px; }
  .photo-work__category { font-size: 13px; }
  .about-copy p { font-size: 16px; }
  .about-location { margin-top: 18px; font-size: 14px; }
  .site-footer { margin-top: 28px; }
  .photo-viewer { width: calc(100% - 24px); max-height: calc(100svh - 24px); padding: 14px; }
  .photo-viewer__toolbar,
  .photo-viewer__navigation { gap: 12px; }
  .photo-viewer__caption { margin-block: 14px 18px; }
  .photo-viewer__caption h2 { font-size: 20px; }
  .photo-viewer__hint { display: none; }
}