/* 看画训练场：展墙式的大师案例与审美游戏 */
:root {
  --master-bg: #17171a;
  --master-surface: #202024;
  --master-surface-2: #29292e;
  --master-line: rgba(236, 235, 231, .17);
  --master-text: #ecebe7;
  --master-muted: #aaa8a0;
  --master-accent: #e8c66b;
  --master-accent-ink: #1b1a16;
  --master-radius: .25rem;
  --master-ease: cubic-bezier(.16, 1, .3, 1);
}

.masters-page {
  background: var(--master-bg);
  color: var(--master-text);
}

.masters-page main {
  overflow: clip;
}

.masters-page :focus-visible {
  outline-color: var(--master-accent);
}

.masters-page .site-footer a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.master-hero {
  min-height: calc(100dvh - 4rem);
  display: grid;
  align-items: stretch;
  border-bottom: 1px solid var(--master-line);
}

.master-hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4.5rem 1.25rem 3.75rem;
}

.master-hero-copy .kicker {
  color: var(--master-accent);
}

.master-hero h1 {
  max-width: 12ch;
  margin-top: 1.25rem;
  font-size: clamp(2.4rem, 9vw, 4.8rem);
  line-height: 1.08;
  letter-spacing: -.045em;
  font-weight: 760;
}

.master-hero-copy > p:not(.kicker) {
  max-width: 32rem;
  margin-top: 1.5rem;
  color: var(--master-muted);
  font-size: 1rem;
  line-height: 1.9;
}

.master-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.25rem;
  margin-top: 2rem;
}

.master-action,
.draw-card,
.next-question {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .75rem 1.4rem;
  border: 1px solid var(--master-accent);
  border-radius: var(--master-radius);
  background: var(--master-accent);
  color: var(--master-accent-ink);
  font: 700 .95rem/1 var(--sans);
  letter-spacing: .08em;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .25s var(--master-ease), background .25s ease, color .25s ease;
}

.master-action:hover,
.draw-card:hover,
.next-question:hover {
  background: transparent;
  color: var(--master-accent);
  transform: translateY(-.15rem);
}

.master-action:active,
.draw-card:active,
.next-question:active {
  transform: scale(.98);
}

.master-text-link,
.source-link {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--master-text);
  text-underline-offset: .35em;
  transition: color .2s ease;
}

.master-text-link:hover,
.source-link:hover {
  color: var(--master-accent);
}

.master-hero-mosaic {
  min-height: 18rem;
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  gap: .25rem;
  padding: .25rem;
  background: var(--master-line);
}

.master-hero-mosaic figure {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: var(--master-surface);
}

.master-hero-mosaic .mosaic-main {
  grid-row: 1 / 3;
}

.master-hero-mosaic img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.82) contrast(1.05);
  transform: scale(1.02);
  transition: transform 1.2s var(--master-ease), filter .5s ease;
}

.master-hero-mosaic figure:hover img {
  filter: saturate(1) contrast(1);
  transform: scale(1.07);
}

.master-hero-mosaic figure:nth-child(2) img {
  object-position: 55% 50%;
}

.master-hero-mosaic figure:nth-child(3) img {
  object-position: 50% 18%;
}

.challenge-section,
.compare-section,
.collection-section,
.prompt-section {
  padding: 5.5rem 1.25rem 6.5rem;
  border-bottom: 1px solid var(--master-line);
}

.challenge-heading,
.section-copy {
  max-width: 45rem;
  margin-bottom: 2rem;
}

.challenge-heading h2,
.section-copy h2,
.prompt-copy h2 {
  font-size: clamp(2rem, 7vw, 3.75rem);
  line-height: 1.15;
  letter-spacing: -.035em;
}

.challenge-heading p,
.section-copy p,
.prompt-copy > p {
  max-width: 38rem;
  margin-top: 1rem;
  color: var(--master-muted);
  line-height: 1.85;
}

.challenge-shell {
  display: grid;
  max-width: 84rem;
  margin: 0 auto;
  border: 1px solid var(--master-line);
  background: var(--master-surface);
}

.challenge-art {
  position: relative;
  min-height: 22rem;
  overflow: hidden;
  background: #0f0f11;
}

.challenge-art img {
  width: 100%;
  height: 100%;
  max-height: 44rem;
  object-fit: contain;
  transition: opacity .3s ease, transform .6s var(--master-ease);
}

.challenge-art.is-changing img {
  opacity: 0;
  transform: scale(.985);
}

.challenge-counter {
  position: absolute;
  right: .75rem;
  bottom: .75rem;
  display: flex;
  gap: .35rem;
  padding: .45rem .7rem;
  border: 1px solid rgba(255, 255, 255, .22);
  background: rgba(23, 23, 26, .78);
  color: var(--master-text);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  backdrop-filter: blur(.75rem);
}

.challenge-panel {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  border-top: 1px solid var(--master-line);
}

.scoreboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .5rem;
  color: var(--master-muted);
  font-size: .8rem;
  line-height: 1.4;
}

.scoreboard span {
  padding: .65rem .5rem;
  border-left: 1px solid var(--master-line);
}

.scoreboard strong {
  display: block;
  margin-top: .15rem;
  color: var(--master-text);
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}

.challenge-question {
  margin-top: 2rem;
  font-size: clamp(1.35rem, 5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.45;
}

.challenge-observe[hidden],
.challenge-answer[hidden] {
  display: none;
}

.challenge-observe {
  margin-top: 1.75rem;
  padding: 1.25rem;
  border: 1px solid var(--master-line);
  background: rgba(255, 255, 255, .025);
}

.observe-step {
  color: var(--master-accent);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .1em;
}

.challenge-observe h3 {
  margin-top: .65rem;
  font-size: clamp(1.45rem, 4vw, 2rem);
}

.challenge-observe ul {
  margin: 1rem 0 0 1.1rem;
  color: var(--master-muted);
  line-height: 1.85;
}

.reveal-question {
  min-height: 3rem;
  margin-top: 1.25rem;
  padding: .7rem 1rem;
  border: 1px solid var(--master-accent);
  border-radius: var(--master-radius);
  background: transparent;
  color: var(--master-accent);
  font: 700 .92rem/1.3 var(--sans);
  cursor: pointer;
}

.challenge-answer {
  margin-top: 1.75rem;
}

.challenge-answer .challenge-question {
  margin-top: .65rem;
}

.challenge-options {
  display: grid;
  gap: .65rem;
  margin-top: 1.5rem;
}

.challenge-option {
  width: 100%;
  min-height: 3.25rem;
  padding: .8rem 1rem;
  border: 1px solid var(--master-line);
  border-radius: var(--master-radius);
  background: transparent;
  color: var(--master-text);
  font: 600 1rem/1.5 var(--sans);
  text-align: left;
  cursor: pointer;
  transition: transform .2s var(--master-ease), border-color .2s ease, background .2s ease;
}

.challenge-option:hover:not(:disabled) {
  border-color: var(--master-accent);
  transform: translateX(.25rem);
}

.challenge-option:active:not(:disabled) {
  transform: scale(.99);
}

.challenge-option:disabled {
  cursor: default;
  opacity: .58;
}

.challenge-option.is-right {
  border-color: var(--master-accent);
  background: rgba(232, 198, 107, .12);
  color: var(--master-accent);
  opacity: 1;
}

.challenge-option.is-wrong {
  border-color: #bb5b50;
  background: rgba(187, 91, 80, .1);
  opacity: 1;
}

.challenge-feedback {
  margin-top: 1.5rem;
  padding: 1.1rem 0 0 1rem;
  border-left: .2rem solid var(--master-accent);
  color: var(--master-muted);
  line-height: 1.75;
}

.challenge-feedback[hidden],
.next-question[hidden] {
  display: none;
}

.feedback-title {
  color: var(--master-accent);
  font-weight: 750;
}

.feedback-work {
  margin-top: .5rem;
  color: var(--master-text);
  font-size: .88rem;
}

.next-question {
  align-self: flex-start;
  margin-top: 1.5rem;
}

.compare-section {
  background: var(--master-surface);
}

.compare-controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: .45rem;
  max-width: 64rem;
  margin: 0 auto 1rem;
}

.compare-controls label {
  color: var(--master-muted);
  font-size: .85rem;
}

.compare-controls select {
  min-height: 3rem;
  width: 100%;
  padding: .6rem 2.5rem .6rem .8rem;
  border: 1px solid var(--master-line);
  border-radius: var(--master-radius);
  background: var(--master-bg);
  color: var(--master-text);
  font: 600 .95rem/1.4 var(--sans);
}

.compare-stage {
  --compare: 50%;
  position: relative;
  width: 100%;
  max-width: 64rem;
  aspect-ratio: 4 / 3;
  margin: 0 auto;
  overflow: hidden;
  background: #0f0f11;
  touch-action: pan-y;
  cursor: grab;
  user-select: none;
}

.compare-stage.is-dragging { cursor: grabbing; }

.compare-axes {
  display: flex;
  align-items: center;
  gap: .5rem;
  max-width: 64rem;
  margin: 0 auto 1rem;
  overflow-x: auto;
  padding-bottom: .2rem;
}

.compare-axes > span {
  flex: 0 0 auto;
  margin-right: .2rem;
  color: var(--master-muted);
  font-size: .82rem;
}

.compare-axes button {
  min-height: 2.6rem;
  flex: 0 0 auto;
  padding: .55rem .8rem;
  border: 1px solid var(--master-line);
  border-radius: var(--master-radius);
  background: transparent;
  color: var(--master-muted);
  font: 650 .85rem/1 var(--sans);
  cursor: pointer;
}

.compare-axes button[aria-pressed="true"] {
  border-color: var(--master-accent);
  background: rgba(232, 198, 107, .1);
  color: var(--master-accent);
}

.compare-stage > img,
.compare-front,
.compare-front img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.compare-stage img {
  object-fit: contain;
}

.compare-front { background: #0f0f11; }

.compare-front {
  clip-path: inset(0 calc(100% - var(--compare)) 0 0);
  will-change: clip-path;
}

.compare-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--compare);
  width: 1px;
  background: var(--master-accent);
  transform: translateX(-.5px);
  pointer-events: none;
}

.compare-line::after {
  content: "↔";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--master-accent);
  border-radius: 50%;
  background: var(--master-bg);
  color: var(--master-accent);
  transform: translate(-50%, -50%);
  line-height: 1;
}

.compare-label {
  position: absolute;
  bottom: .75rem;
  max-width: calc(50% - 1rem);
  padding: .4rem .65rem;
  background: rgba(23, 23, 26, .8);
  color: var(--master-text);
  font-size: .78rem;
  line-height: 1.45;
  backdrop-filter: blur(.6rem);
}

.compare-label-a {
  left: .75rem;
}

.compare-label-b {
  right: .75rem;
  text-align: right;
}

.compare-range-label {
  display: block;
  max-width: 64rem;
  margin: 1rem auto .35rem;
  color: var(--master-muted);
  font-size: .85rem;
}

.compare-range {
  width: 100%;
  max-width: 64rem;
  height: 2.75rem;
  display: block;
  margin: 0 auto;
  accent-color: var(--master-accent);
  cursor: ew-resize;
}

.compare-reading {
  max-width: 64rem;
  margin: 1rem auto 0;
  padding-left: 1rem;
  border-left: .2rem solid var(--master-accent);
  color: var(--master-muted);
  line-height: 1.8;
}

.collection-tabs {
  display: flex;
  gap: .5rem;
  margin: 0 -1.25rem 1.5rem;
  padding: 0 1.25rem .6rem;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--master-accent) transparent;
}

.collection-tabs button {
  min-height: 2.75rem;
  flex: 0 0 auto;
  padding: .55rem 1rem;
  border: 1px solid var(--master-line);
  border-radius: var(--master-radius);
  background: transparent;
  color: var(--master-muted);
  font: 600 .9rem/1 var(--sans);
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.collection-tabs button:hover,
.collection-tabs button[aria-selected="true"] {
  border-color: var(--master-accent);
  background: rgba(232, 198, 107, .1);
  color: var(--master-accent);
}

.collection-layout {
  display: grid;
  gap: 1.5rem;
  max-width: 88rem;
  margin: 0 auto;
}

.reading-routine {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: 88rem;
  margin: 0 auto 2rem;
  padding: 1px;
  background: var(--master-line);
  list-style: none;
}

.reading-routine li {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: .15rem .65rem;
  padding: .9rem;
  background: var(--master-bg);
}

.reading-routine span {
  grid-row: 1 / 3;
  color: var(--master-accent);
  font-family: var(--latin-serif);
  font-style: italic;
}

.reading-routine b { font-size: .95rem; }
.reading-routine small { color: var(--master-muted); line-height: 1.5; }

.work-list {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(10.5rem, 42vw);
  gap: .65rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: .75rem;
  scrollbar-width: thin;
  scrollbar-color: var(--master-accent) transparent;
}

.work-thumb {
  scroll-snap-align: start;
  border: 1px solid var(--master-line);
  border-radius: var(--master-radius);
  background: var(--master-surface);
  color: var(--master-text);
  text-align: left;
  cursor: pointer;
  overflow: hidden;
  transition: border-color .2s ease, transform .25s var(--master-ease);
}

.work-thumb:hover,
.work-thumb[aria-pressed="true"] {
  border-color: var(--master-accent);
  transform: translateY(-.2rem);
}

.work-thumb img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: .25rem;
  background: #0e0e10;
  filter: saturate(.76);
  transition: filter .25s ease;
}

.work-thumb:hover img,
.work-thumb[aria-pressed="true"] img {
  filter: saturate(1);
}

.work-thumb span {
  display: block;
  padding: .65rem .7rem .75rem;
  font: 650 .88rem/1.5 var(--sans);
}

.work-viewer {
  min-width: 0;
  border: 1px solid var(--master-line);
  background: var(--master-surface);
}

.viewer-tools {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .75rem;
  overflow-x: auto;
  border-bottom: 1px solid var(--master-line);
}

.viewer-tools > span {
  flex: 0 0 auto;
  margin-right: .25rem;
  color: var(--master-muted);
  font-size: .78rem;
}

.viewer-tools button {
  min-height: 2.5rem;
  flex: 0 0 auto;
  padding: .5rem .7rem;
  border: 1px solid var(--master-line);
  border-radius: var(--master-radius);
  background: transparent;
  color: var(--master-muted);
  font: 650 .8rem/1 var(--sans);
  cursor: pointer;
}

.viewer-tools button[aria-pressed="true"] {
  border-color: var(--master-accent);
  color: var(--master-accent);
}

.viewer-image {
  --lens-x: 50%;
  --lens-y: 50%;
  --zoom-x: 50%;
  --zoom-y: 50%;
  position: relative;
  height: clamp(24rem, 68vh, 48rem);
  min-height: 0;
  overflow: hidden;
  background: #0e0e10;
}

.viewer-image > img {
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: contain;
  transform-origin: var(--zoom-x) var(--zoom-y);
  transition: opacity .25s ease, transform .45s var(--master-ease), filter .35s ease;
}

.viewer-image[data-mode="value"] > img { filter: grayscale(1); }
.viewer-image[data-mode="squint"] > img { filter: grayscale(.8) blur(.28rem) contrast(.95); transform: scale(1.018); }
.viewer-image[data-mode="contour"] > img { filter: grayscale(1) contrast(2.25); }
.viewer-image.is-zoomed > img { transform: scale(2); cursor: zoom-out; }
.viewer-image.is-zoomed[data-mode="squint"] > img { transform: scale(2); }
.viewer-image.is-zoomed .detail-lens { display: none; }

.detail-lens {
  position: absolute;
  top: var(--lens-y);
  left: var(--lens-x);
  width: 10rem;
  height: 10rem;
  border: 1px solid var(--master-accent);
  border-radius: 50%;
  background-color: #111;
  background-repeat: no-repeat;
  box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, .42);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(.86);
  transition: opacity .18s ease, transform .25s var(--master-ease);
}

.viewer-image.has-lens .detail-lens {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.viewer-copy {
  padding: 1.25rem;
  border-top: 1px solid var(--master-line);
}

.viewer-meta {
  color: var(--master-accent);
  font-size: .82rem;
  letter-spacing: .08em;
}

.viewer-copy h3 {
  margin-top: .65rem;
  font-size: clamp(1.5rem, 5vw, 2.6rem);
  line-height: 1.25;
}

.viewer-copy > p:not(.viewer-meta) {
  max-width: 42rem;
  margin-top: 1rem;
  color: var(--master-muted);
  line-height: 1.9;
}

.viewer-copy .viewer-coach {
  padding: .85rem 1rem;
  border-left: .2rem solid var(--master-accent);
  background: rgba(232, 198, 107, .06);
  color: var(--master-text);
}

.viewer-principles {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: 1.25rem;
}

.viewer-principles span {
  padding: .35rem .6rem;
  border-left: 2px solid var(--master-accent);
  background: rgba(232, 198, 107, .08);
  color: var(--master-text);
  font-size: .82rem;
}

.source-link {
  margin-top: 1rem;
  color: var(--master-accent);
}

.art-lightbox {
  width: min(96vw, 100rem);
  max-width: none;
  height: min(96dvh, 70rem);
  max-height: none;
  margin: auto;
  padding: 0;
  border: 1px solid var(--master-line);
  background: #0d0d0f;
  color: var(--master-text);
  box-shadow: 0 2rem 6rem rgba(0, 0, 0, .65);
}

.art-lightbox::backdrop {
  background: rgba(0, 0, 0, .82);
  backdrop-filter: blur(.4rem);
}

.lightbox-shell {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.lightbox-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--master-line);
}

.lightbox-head p {
  color: var(--master-accent);
  font-size: .76rem;
  letter-spacing: .08em;
}

.lightbox-head h2 {
  margin-top: .2rem;
  font-size: clamp(1.1rem, 2vw, 1.65rem);
}

.lightbox-head button {
  min-width: 3.5rem;
  min-height: 2.75rem;
  border: 1px solid var(--master-line);
  background: transparent;
  color: var(--master-text);
  font: 650 .86rem/1 var(--sans);
  cursor: pointer;
}

.lightbox-canvas {
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 1rem;
}

.lightbox-canvas img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.lightbox-hint {
  padding: .65rem 1rem;
  border-top: 1px solid var(--master-line);
  color: var(--master-muted);
  font-size: .78rem;
  text-align: center;
}

.prompt-section {
  display: grid;
  gap: 2rem;
  background:
    radial-gradient(circle at 85% 15%, rgba(232, 198, 107, .09), transparent 20rem),
    var(--master-bg);
}

.draw-card {
  margin-top: 1.5rem;
}

.prompt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.5rem;
}

.prompt-actions .draw-card { margin-top: 0; }

.prompt-timer {
  min-height: 3rem;
  padding: .75rem 1rem;
  border: 1px solid var(--master-line);
  border-radius: var(--master-radius);
  background: transparent;
  color: var(--master-text);
  font: 700 .9rem/1 var(--sans);
  cursor: pointer;
}

.prompt-timer[aria-pressed="true"] {
  border-color: var(--master-accent);
  color: var(--master-accent);
}

.prompt-card {
  position: relative;
  min-height: 23rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem;
  border: 1px solid var(--master-accent);
  border-radius: var(--master-radius);
  background: var(--master-accent);
  color: var(--master-accent-ink);
  box-shadow: 1.25rem 1.25rem 0 rgba(232, 198, 107, .11);
  transform: rotate(1.2deg);
  transform-origin: 50% 85%;
  transition: opacity .22s ease, transform .45s var(--master-ease);
}

.prompt-card.is-changing {
  opacity: 0;
  transform: rotate(-3deg) translateY(1rem) scale(.97);
}

.prompt-card.is-timeup {
  box-shadow: 0 0 0 .55rem rgba(232, 198, 107, .16), 1.25rem 1.25rem 0 rgba(232, 198, 107, .11);
  transform: rotate(0deg) scale(1.01);
}

.prompt-time {
  font-size: 1rem;
  font-weight: 750;
  letter-spacing: .12em;
}

.prompt-card h3 {
  margin-top: auto;
  font-size: clamp(2.2rem, 10vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: -.05em;
}

.prompt-card > p:not(.prompt-time):not(.prompt-goal) {
  margin-top: 1.25rem;
  font-size: clamp(1rem, 4vw, 1.25rem);
  font-weight: 600;
  line-height: 1.65;
}

.prompt-card .prompt-current {
  margin-top: 1rem;
  font-size: .92rem;
}

.prompt-goal {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(27, 26, 22, .35);
  font-size: .86rem;
  font-weight: 700;
}

@media (min-width: 768px) {
  .master-hero-copy,
  .challenge-section,
  .compare-section,
  .collection-section,
  .prompt-section {
    padding-left: 2.5rem;
    padding-right: 2.5rem;
  }

  .challenge-shell {
    grid-template-columns: minmax(0, 1.35fr) minmax(21rem, .65fr);
  }

  .master-hero-mosaic {
    min-height: 26rem;
  }

  .challenge-panel {
    padding: 1.75rem;
    border-top: 0;
    border-left: 1px solid var(--master-line);
  }

  .compare-controls {
    grid-template-columns: auto minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
  }

  .compare-stage {
    aspect-ratio: 16 / 9;
  }

  .collection-tabs {
    margin-inline: 0;
    padding-inline: 0;
  }

  .work-list {
    grid-auto-columns: minmax(11rem, 13.5rem);
  }

  .reading-routine { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  .viewer-copy {
    padding: 1.75rem;
  }

  .prompt-section {
    grid-template-columns: minmax(0, .8fr) minmax(24rem, 1.2fr);
    align-items: center;
  }

  .prompt-card {
    min-height: 32rem;
    padding: 2.5rem;
  }
}

@media (min-width: 1024px) {
  .master-hero {
    grid-template-columns: minmax(28rem, .85fr) minmax(0, 1.15fr);
  }

  .master-hero-copy {
    padding: 4rem clamp(2.5rem, 5vw, 6rem);
    border-right: 1px solid var(--master-line);
  }

  .master-hero-mosaic {
    min-height: calc(100dvh - 4rem);
  }

  .challenge-section,
  .compare-section,
  .collection-section,
  .prompt-section {
    padding-top: 8rem;
    padding-bottom: 9rem;
  }

  .challenge-heading,
  .section-copy {
    margin-left: max(0rem, calc((100vw - 84rem) / 2));
    margin-bottom: 3rem;
  }

  .collection-layout {
    grid-template-columns: minmax(12rem, 17rem) minmax(0, 1fr);
    align-items: start;
  }

  .work-list {
    max-height: 47rem;
    grid-auto-flow: row;
    grid-auto-rows: auto;
    grid-template-columns: 1fr 1fr;
    overflow-x: hidden;
    overflow-y: auto;
    padding-right: .5rem;
  }

  .work-thumb span {
    min-height: 4.3rem;
  }

  .viewer-image {
    height: min(76vh, 52rem);
    min-height: 35rem;
  }

  .prompt-section {
    grid-template-columns: minmax(20rem, .72fr) minmax(32rem, 1.28fr);
    gap: clamp(4rem, 9vw, 10rem);
    padding-left: max(2.5rem, calc((100vw - 76rem) / 2));
    padding-right: max(2.5rem, calc((100vw - 76rem) / 2));
  }
}

@media (hover: none), (pointer: coarse) {
  .detail-lens {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .master-hero-mosaic img,
  .challenge-art img,
  .prompt-card {
    transform: none !important;
  }
}