:root {
  --paper: #f3eee8;
  --paper-deep: #e7ded3;
  --ink: #24211d;
  --soft-ink: #71665e;
  --line: #d8cdc1;
  --seal: #b94736;
  --white: #fbf8f2;
  --night: #101a20;
  --scroll-progress: 0;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgb(185 71 54 / 0.08), transparent 28%),
    linear-gradient(90deg, rgb(36 33 29 / 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgb(36 33 29 / 0.025) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 42px 42px, 42px 42px, auto;
  color: var(--ink);
  font-family: "Microsoft JhengHei", "Noto Sans TC", "PingFang TC", Arial, sans-serif;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.site-header {
  --hero-x: 0;
  --hero-y: 0;
  background:
    linear-gradient(180deg, rgb(243 238 232 / 0.92), rgb(243 238 232 / 0.96)),
    repeating-linear-gradient(90deg, rgb(36 33 29 / 0.045) 0 1px, transparent 1px 9px);
  border-bottom: 1px solid var(--line);
  min-height: 76vh;
  overflow: hidden;
  padding: 24px clamp(18px, 5vw, 64px) 54px;
  position: relative;
}

.site-header::before,
.site-header::after {
  content: "";
  pointer-events: none;
  position: absolute;
  z-index: 0;
}

.site-header::before {
  background:
    radial-gradient(circle, rgb(185 71 54 / 0.2), transparent 58%),
    radial-gradient(circle at 32% 68%, rgb(16 26 32 / 0.12), transparent 50%);
  filter: blur(8px);
  height: 360px;
  left: max(58%, 520px);
  opacity: calc(0.88 - (var(--scroll-progress) * 0.42));
  top: 112px;
  transform: translate(
    calc(var(--hero-x) * 34px),
    calc(var(--hero-y) * 22px)
  ) rotate(-12deg);
  transition: opacity 240ms ease;
  width: 360px;
}

.site-header::after {
  background:
    linear-gradient(120deg, transparent 10%, rgb(36 33 29 / 0.08), transparent 68%),
    repeating-linear-gradient(90deg, rgb(36 33 29 / 0.08) 0 1px, transparent 1px 12px);
  bottom: 0;
  height: 34%;
  left: 0;
  mask-image: linear-gradient(180deg, transparent, #000);
  opacity: 0.54;
  transform: translateY(calc(var(--scroll-progress) * 20px));
  width: 100%;
}

.site-header.compact {
  padding-bottom: 28px;
}

.nav {
  align-items: center;
  animation: rise-in 680ms cubic-bezier(.2,.7,.2,1) both;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin: 0 auto;
  max-width: 1160px;
  position: relative;
  z-index: 2;
}

.brand {
  align-items: center;
  display: flex;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  gap: 10px;
  text-transform: uppercase;
}

.seal {
  align-items: center;
  background: var(--white);
  border: 2px solid var(--seal);
  border-radius: 50%;
  color: var(--seal);
  display: inline-flex;
  font-family: serif;
  font-size: 14px;
  height: 48px;
  justify-content: center;
  line-height: 1;
  width: 48px;
  transition: transform 280ms ease, box-shadow 280ms ease;
}

.brand:hover .seal {
  box-shadow: 0 8px 22px rgb(185 71 54 / 0.18);
  transform: rotate(-8deg) scale(1.04);
}

.admin-link,
.filter,
.submit-button {
  border: 1px solid var(--ink);
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
}

.admin-link {
  background: transparent;
  padding: 10px 16px;
  transition: background 220ms ease, color 220ms ease, transform 220ms ease;
}

.admin-link:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}

.hero {
  margin: 64px auto 0;
  max-width: 1160px;
  position: relative;
  z-index: 1;
}

.hero::after {
  background: linear-gradient(90deg, var(--seal), transparent);
  content: "";
  display: block;
  height: 2px;
  margin-top: 34px;
  opacity: 0.42;
  transform-origin: left;
  width: min(480px, 56vw);
  animation: brush-line 1100ms 420ms cubic-bezier(.2,.8,.2,1) both;
}

.eyebrow {
  animation: rise-in 760ms 90ms cubic-bezier(.2,.7,.2,1) both;
  color: var(--seal);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1 {
  animation: ink-title 980ms 180ms cubic-bezier(.2,.7,.2,1) both;
  color: var(--seal);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(48px, 11vw, 156px);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 0.92;
  margin: 0;
  max-width: 1240px;
}

h1 span {
  display: block;
}

.intro-copy {
  animation: rise-in 800ms 340ms cubic-bezier(.2,.7,.2,1) both;
  color: var(--soft-ink);
  font-size: 16px;
  line-height: 1.8;
  margin: 30px 0 0;
  max-width: 560px;
}

main {
  margin: 0 auto;
  max-width: 1160px;
  padding: 48px clamp(18px, 5vw, 64px) 72px;
}

.curation {
  align-items: end;
  animation: rise-in 760ms 120ms cubic-bezier(.2,.7,.2,1) both;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 24px;
  grid-template-columns: 180px 1fr;
  margin-bottom: 24px;
  padding-bottom: 34px;
}

.curation p {
  color: var(--seal);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  margin: 0;
}

.curation h2 {
  color: var(--night);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 400;
  line-height: 1.08;
  margin: 0;
  max-width: 780px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.filter {
  background: transparent;
  color: var(--soft-ink);
  padding: 8px 14px;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.filter.active {
  background: var(--night);
  border-color: var(--night);
  color: var(--paper);
}

.filter:hover {
  border-color: var(--seal);
  color: var(--ink);
  transform: translateY(-2px);
}

.filter.active:hover {
  color: var(--paper);
}

.search-row {
  align-items: center;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(220px, 420px) auto;
  margin-bottom: 32px;
}

.search-row input {
  background: rgb(255 253 248 / 0.58);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font: inherit;
  padding: 12px 18px;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.search-row input:focus {
  background: rgb(255 253 248 / 0.86);
  border-color: var(--seal);
  box-shadow: 0 0 0 4px rgb(185 71 54 / 0.1);
  outline: none;
}

.search-row span {
  color: var(--soft-ink);
  font-size: 14px;
}

.color-panel,
.date-panel {
  border-bottom: 1px solid var(--line);
  margin: 0 0 30px;
  padding: 0 0 22px;
}

.color-panel summary,
.date-panel summary {
  color: var(--seal);
  cursor: pointer;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  list-style-position: outside;
  margin-bottom: 16px;
}

.date-controls {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
}

.date-controls label {
  color: var(--soft-ink);
  font-size: 14px;
}

.date-controls select {
  border-radius: 999px;
  margin-top: 8px;
}

.color-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.color-chip {
  align-items: center;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--soft-ink);
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  gap: 8px;
  padding: 8px 12px 8px 9px;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.color-chip.active {
  background: var(--night);
  border-color: var(--night);
  color: var(--paper);
}

.color-chip span {
  background: var(--swatch);
  border: 1px solid rgb(36 33 29 / 0.24);
  border-radius: 50%;
  display: inline-block;
  height: 20px;
  transition: transform 180ms ease;
  width: 20px;
}

.color-chip:hover {
  border-color: var(--seal);
  transform: translateY(-2px);
}

.color-chip:hover span {
  transform: scale(1.12);
}

.chip-all {
  background: conic-gradient(#1f1f1d, #b83b2f, #c89b3c, #6f8150, #4f6f93, #1f1f1d) !important;
}

.color-status {
  color: var(--soft-ink);
  font-size: 14px;
  margin: 12px 0 0;
}

.gallery {
  column-count: 3;
  column-gap: 16px;
}

.work-card {
  --card-rotate: 0deg;
  background: transparent;
  break-inside: avoid;
  border: 0;
  content-visibility: auto;
  contain-intrinsic-size: 420px 620px;
  cursor: zoom-in;
  display: inline-block;
  margin: 0 0 16px;
  opacity: 0;
  overflow: hidden;
  transform: translateY(26px);
  transition: opacity 620ms ease var(--stagger, 0ms), transform 620ms cubic-bezier(.2,.7,.2,1) var(--stagger, 0ms);
  width: 100%;
}

.work-card.in-view {
  opacity: 1;
  transform: translateY(0);
}

.work-card::before {
  background: linear-gradient(90deg, transparent, rgb(255 255 255 / 0.55), transparent);
  content: "";
  display: block;
  height: 1px;
  margin: 0 auto 7px;
  width: 82%;
}

.work-image-shell {
  background:
    linear-gradient(135deg, rgb(255 255 255 / 0.7), rgb(231 222 211 / 0.55)),
    var(--paper-deep);
  border: 1px solid var(--line);
  box-shadow:
    0 18px 35px rgb(36 33 29 / 0.12),
    inset 0 0 0 9px rgb(255 253 248 / 0.42);
  display: grid;
  min-height: clamp(220px, 40vw, 470px);
  padding: 8px;
  place-items: center;
  transform: rotate(var(--card-rotate));
  transition: box-shadow 260ms ease, filter 260ms ease, transform 320ms cubic-bezier(.2,.7,.2,1);
  width: 100%;
}

.work-card img {
  display: block;
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  width: 100%;
}

.work-card:nth-child(3n + 1) .work-image-shell {
  --card-rotate: -0.4deg;
}

.work-card:nth-child(3n + 2) .work-image-shell {
  --card-rotate: 0.35deg;
}

.work-card:nth-child(3n) .work-image-shell {
  --card-rotate: -0.15deg;
}

.work-card:hover .work-image-shell {
  box-shadow:
    0 26px 48px rgb(36 33 29 / 0.18),
    inset 0 0 0 9px rgb(255 253 248 / 0.52);
  filter: saturate(1.05) contrast(1.02);
  transform: translateY(-6px) scale(1.012) rotate(calc(var(--card-rotate) * -0.4));
}

.work-card:hover .work-meta h2 {
  color: var(--seal);
}

.work-meta {
  padding: 12px 0 18px;
}

.work-meta h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  font-weight: 400;
  line-height: 1.35;
  margin: 0 0 8px;
  transition: color 220ms ease;
}

.tagline {
  color: var(--soft-ink);
  font-size: 14px;
  line-height: 1.5;
  margin: 0;
}

.empty {
  color: var(--soft-ink);
  font-size: 18px;
  padding: 40px 0;
}

.viewer {
  background:
    linear-gradient(135deg, rgb(255 255 255 / 0.74), rgb(231 222 211 / 0.5)),
    var(--white);
  border: 0;
  max-height: calc(100dvh - 28px);
  max-width: min(1000px, calc(100vw - 28px));
  overflow: auto;
  padding: 12px;
}

.viewer[open] {
  animation: viewer-in 260ms cubic-bezier(.2,.7,.2,1) both;
}

.viewer::backdrop {
  background: rgb(36 33 29 / 72%);
  backdrop-filter: blur(6px);
}

.viewer img {
  background: var(--paper-deep);
  box-shadow: inset 0 0 0 12px rgb(255 253 248 / 0.52);
  display: block;
  max-height: 76vh;
  max-width: 100%;
  object-fit: contain;
  padding: 10px;
}

.viewer-close {
  background: var(--night);
  border: 0;
  border-radius: 50%;
  color: var(--paper);
  cursor: pointer;
  font-size: 28px;
  height: 40px;
  position: absolute;
  right: 12px;
  top: 12px;
  transition: background 180ms ease, transform 180ms ease;
  width: 40px;
}

.viewer-close:hover {
  background: var(--seal);
  transform: rotate(90deg);
}

.back-to-top {
  align-items: center;
  background:
    linear-gradient(145deg, rgb(255 253 248 / 0.9), rgb(231 222 211 / 0.82));
  border: 1px solid rgb(36 33 29 / 0.22);
  border-radius: 50%;
  bottom: max(28px, env(safe-area-inset-bottom));
  box-shadow:
    0 16px 34px rgb(36 33 29 / 0.16),
    inset 0 0 0 6px rgb(255 253 248 / 0.38);
  color: var(--seal);
  cursor: pointer;
  display: inline-flex;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 30px;
  height: 54px;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  position: fixed;
  right: max(24px, env(safe-area-inset-right));
  transform: translateY(18px) scale(0.92);
  transition:
    opacity 220ms ease,
    transform 240ms cubic-bezier(.2,.7,.2,1),
    background 180ms ease,
    color 180ms ease;
  width: 54px;
  z-index: 20;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.back-to-top:hover {
  background: var(--seal);
  color: var(--paper);
  transform: translateY(-4px) scale(1.04);
}

.viewer-meta {
  padding: 18px 20px 22px;
}

.viewer-meta h2 {
  margin: 0 0 8px;
}

.viewer-meta p {
  color: var(--soft-ink);
  line-height: 1.7;
  margin: 6px 0 0;
}

.admin-main {
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(280px, 380px) 1fr;
}

.upload-panel {
  align-self: start;
  background: var(--white);
  border: 1px solid var(--line);
  display: grid;
  gap: 16px;
  padding: 20px;
}

.admin-hero h1 {
  font-size: clamp(48px, 9vw, 124px);
}

label {
  color: var(--soft-ink);
  display: grid;
  font-size: 14px;
  gap: 8px;
}

input,
select,
textarea {
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink);
  font: inherit;
  padding: 11px 12px;
  width: 100%;
}

textarea {
  resize: vertical;
}

.submit-button {
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
}

.status {
  color: var(--seal);
  margin: 0;
  min-height: 22px;
}

.section-title {
  align-items: baseline;
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-title h2 {
  margin: 0;
}

.section-title span {
  color: var(--soft-ink);
}

.admin-tools {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 14px;
  margin: 0 0 18px;
  padding: 0 0 18px;
}

.admin-filters,
.admin-color-swatches {
  margin-bottom: 0;
}

.admin-search {
  grid-template-columns: minmax(220px, 1fr) auto;
  margin-bottom: 0;
}

.admin-list {
  display: grid;
  gap: 12px;
}

.admin-pagination {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 16px;
}

.admin-pagination span {
  color: var(--soft-ink);
  font-size: 14px;
  min-width: 88px;
  text-align: center;
}

.pager-button {
  background: transparent;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  padding: 8px 14px;
  transition: background 180ms ease, color 180ms ease, opacity 180ms ease, transform 180ms ease;
}

.pager-button:hover:not(:disabled) {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}

.pager-button:disabled {
  cursor: default;
  opacity: 0.38;
}

.admin-item {
  align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  display: grid;
  gap: 14px;
  grid-template-columns: 88px 1fr auto;
  padding: 10px;
}

.admin-item img {
  aspect-ratio: 1;
  object-fit: cover;
  width: 88px;
}

.admin-item h3 {
  font-size: 16px;
  margin: 0 0 6px;
}

.admin-item p {
  color: var(--soft-ink);
  font-size: 14px;
  margin: 0;
}

.delete-button {
  background: transparent;
  border: 1px solid var(--seal);
  color: var(--seal);
  cursor: pointer;
  font: inherit;
  padding: 8px 12px;
}

.login-main {
  align-items: center;
  display: grid;
  min-height: 100dvh;
  padding: 24px;
}

.login-panel {
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 24px 70px rgb(36 33 29 / 0.12);
  display: grid;
  gap: 18px;
  margin: 0 auto;
  max-width: 420px;
  padding: 28px;
  width: 100%;
}

.login-panel h1 {
  font-size: clamp(38px, 8vw, 66px);
  line-height: 1;
}

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

@keyframes ink-title {
  from {
    filter: blur(8px);
    opacity: 0;
    transform: translateY(22px) scale(0.985);
  }
  to {
    filter: blur(0);
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes brush-line {
  from {
    opacity: 0;
    transform: scaleX(0);
  }
  to {
    opacity: 0.42;
    transform: scaleX(1);
  }
}

@keyframes viewer-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

  .work-card {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 860px) {
  .site-header {
    min-height: 64vh;
    padding-bottom: 44px;
  }

  .nav {
    align-items: flex-start;
  }

  .hero {
    margin-top: clamp(42px, 8vw, 64px);
  }

  h1 {
    font-size: clamp(44px, 14vw, 108px);
    max-width: 760px;
  }

  .intro-copy {
    max-width: 640px;
  }

  main {
    padding-top: 40px;
  }

  .gallery {
    column-count: 2;
    column-gap: 14px;
  }

  .date-controls {
    grid-template-columns: repeat(2, minmax(140px, 1fr));
  }

  .admin-main {
    grid-template-columns: 1fr;
  }

  .curation {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: auto;
    padding: 14px 16px 38px;
  }

  .site-header::before {
    height: 240px;
    left: 38%;
    top: 142px;
    width: 240px;
  }

  .nav {
    gap: 12px;
  }

  .hero {
    margin-top: 42px;
  }

  .hero::after {
    margin-top: 24px;
    width: min(340px, 72vw);
  }

  .brand {
    font-size: 12px;
  }

  .seal {
    font-size: 12px;
    height: 42px;
    width: 42px;
  }

  .admin-link {
    padding: 9px 12px;
    white-space: nowrap;
  }

  h1 {
    font-size: clamp(40px, 17vw, 82px);
    line-height: 0.96;
  }

  .intro-copy {
    font-size: 15px;
    line-height: 1.7;
    margin-top: 22px;
  }

  main {
    padding: 34px 16px 64px;
  }

  .curation {
    margin-bottom: 20px;
    padding-bottom: 24px;
  }

  .curation p {
    font-size: 18px;
  }

  .curation h2 {
    font-size: clamp(28px, 10vw, 42px);
  }

  .filters,
  .color-swatches {
    flex-wrap: nowrap;
    margin-inline: -16px;
    overflow-x: auto;
    padding: 0 16px 8px;
    scrollbar-width: none;
  }

  .filters::-webkit-scrollbar,
  .color-swatches::-webkit-scrollbar {
    display: none;
  }

  .filter,
  .color-chip {
    flex: 0 0 auto;
  }

  .gallery {
    column-count: 1;
  }

  .date-controls {
    grid-template-columns: 1fr;
  }

  .admin-item {
    grid-template-columns: 72px 1fr;
  }

  .admin-pagination {
    justify-content: center;
  }

  .search-row {
    grid-template-columns: 1fr;
  }

  .admin-search {
    grid-template-columns: 1fr;
  }

  .back-to-top {
    bottom: max(18px, env(safe-area-inset-bottom));
    height: 48px;
    right: max(16px, env(safe-area-inset-right));
    width: 48px;
  }

  .viewer {
    max-height: calc(100dvh - 18px);
    max-width: calc(100vw - 18px);
    padding: 8px;
  }

  .viewer img {
    max-height: 62dvh;
    padding: 8px;
  }

  .viewer-meta {
    padding: 14px 12px 16px;
  }

  .admin-item img {
    width: 72px;
  }

  .delete-button {
    grid-column: 1 / -1;
  }
}

@media (max-width: 380px) {
  .brand > span:not(.seal) {
    display: none;
  }

  h1 {
    font-size: clamp(36px, 16vw, 64px);
  }

  .work-meta h2 {
    font-size: 20px;
  }
}

@media (orientation: landscape) and (max-height: 560px) {
  .site-header {
    min-height: auto;
    padding-bottom: 30px;
  }

  .hero {
    margin-top: 28px;
  }

  h1 {
    font-size: clamp(42px, 12vw, 96px);
  }

  .intro-copy {
    margin-top: 18px;
  }
}