:root {
  --ink: #142315;
  --green: #123d18;
  --green-2: #1b5e20;
  --paper: #f5f1e8;
  --cream: #fffdf7;
  --line: #c9c8bb;
  --yellow: #ffe600;
  --muted: #5c625b;
  --shadow: 0 22px 64px rgba(18, 61, 24, 0.14);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  background: transparent;
}

body {
  margin: 0;
  padding: 12px;
  color: var(--ink);
  background: transparent;
  font-family: Inter, Avenir Next, Avenir, Helvetica Neue, Arial, sans-serif;
}

button,
select {
  font: inherit;
}

button,
select,
[tabindex="0"] {
  outline-offset: 4px;
}

:focus-visible {
  outline: 3px solid var(--yellow);
}

.time-layer {
  position: relative;
  width: min(1180px, 100%);
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.viewer-header {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 32px;
  align-items: end;
  padding: clamp(24px, 5vw, 58px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 96% 0%, rgba(255, 230, 0, 0.38), transparent 34%),
    var(--green);
  color: #fffdf7;
}

.eyebrow,
.section-kicker,
.photo-role,
.evidence-grid span {
  margin: 0;
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.eyebrow {
  color: var(--yellow);
}

.viewer-header h1 {
  max-width: 720px;
  margin: 12px 0 0;
  font-family: Georgia, Times New Roman, serif;
  font-size: clamp(2rem, 5.6vw, 4.8rem);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.intro {
  margin: 0;
  padding-left: 20px;
  border-left: 3px solid var(--yellow);
  color: #e8eee7;
  font-size: clamp(0.98rem, 1.7vw, 1.12rem);
  line-height: 1.55;
}

.timeline {
  padding: 26px clamp(20px, 5vw, 52px) 0;
}

.timeline-heading {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.timeline h2 {
  margin: 0;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
}

.viewpoint-note {
  border: 1px solid var(--green);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--green);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.year-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.year-tab {
  display: flex;
  min-width: 0;
  min-height: 66px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  align-items: flex-start;
  justify-content: space-between;
  color: var(--ink);
  background: var(--cream);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.year-tab:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}

.year-tab[aria-selected="true"] {
  border-color: var(--yellow);
  color: #123d18;
  background: var(--yellow);
}

.tab-year {
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 850;
  letter-spacing: -0.04em;
}

.tab-label {
  padding-top: 3px;
  font-size: 0.69rem;
  font-weight: 750;
  text-transform: uppercase;
}

.comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 28px clamp(20px, 5vw, 52px) 36px;
}

.photo-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--cream);
}

.photo-card-primary {
  border-color: var(--green);
}

.photo-meta {
  display: flex;
  min-height: 94px;
  gap: 10px;
  align-items: start;
  justify-content: space-between;
  padding: 17px;
}

.photo-role {
  color: var(--muted);
}

.photo-meta h2 {
  margin: 6px 0 0;
  font-family: Georgia, Times New Roman, serif;
  font-size: clamp(1.05rem, 2vw, 1.38rem);
  line-height: 1.1;
}

.evidence-badge {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 7px 9px;
  color: #123d18;
  background: var(--yellow);
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.07em;
}

.image-stage {
  display: grid;
  height: clamp(230px, 32vw, 390px);
  place-items: center;
  overflow: hidden;
  background: #1d241e;
}

.image-stage img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.viewpoint {
  min-height: 100px;
  margin: 0;
  padding: 16px 17px 18px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.52;
}

.compare-control {
  position: sticky;
  top: 12px;
  display: grid;
  width: 118px;
  gap: 7px;
  padding-top: 106px;
}

.compare-control label {
  text-align: center;
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.compare-control select {
  width: 100%;
  border: 1px solid var(--green);
  border-radius: 12px;
  padding: 9px 7px;
  color: var(--green);
  background: var(--cream);
  font-size: 0.74rem;
  font-weight: 750;
}

.compare-control p {
  margin: 0;
  color: var(--muted);
  font-size: 0.65rem;
  line-height: 1.35;
  text-align: center;
}

.evidence-panel {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) minmax(0, 1.3fr);
  gap: 30px;
  padding: clamp(28px, 5vw, 52px);
  color: #fffdf7;
  background: var(--green);
}

.section-kicker {
  color: var(--yellow);
}

.evidence-panel h2 {
  max-width: 390px;
  margin: 10px 0 0;
  font-family: Georgia, Times New Roman, serif;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.28);
}

.evidence-grid article {
  padding: 18px 16px 4px;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
}

.evidence-grid article:last-child {
  border-right: 0;
}

.evidence-grid span {
  color: var(--yellow);
  font-size: 0.62rem;
}

.evidence-grid h3 {
  margin: 22px 0 8px;
  font-size: 1rem;
}

.evidence-grid p {
  margin: 0;
  color: #dfe7df;
  font-size: 0.8rem;
  line-height: 1.5;
}

.viewer-footer {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 52px);
  background: var(--cream);
}

.viewer-footer p {
  max-width: 740px;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.credits-trigger,
.credits-close {
  flex: 0 0 auto;
  border: 0;
  border-radius: 999px;
  padding: 11px 16px;
  color: #123d18;
  background: var(--yellow);
  font-weight: 850;
  cursor: pointer;
}

.credits-trigger:hover,
.credits-close:hover {
  background: #f0d900;
}

.credits-backdrop {
  position: absolute;
  z-index: 8;
  inset: 0;
  background: rgba(8, 18, 10, 0.68);
}

.credits-dialog {
  position: absolute;
  z-index: 9;
  right: clamp(14px, 4vw, 44px);
  bottom: 26px;
  width: min(610px, calc(100% - 28px));
  max-height: min(520px, calc(100% - 52px));
  overflow: auto;
  border: 1px solid var(--green);
  border-radius: 20px;
  padding: 24px;
  color: var(--ink);
  background: var(--cream);
  box-shadow: 0 24px 74px rgba(0, 0, 0, 0.35);
}

.credits-dialog-header {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.credits-dialog .section-kicker {
  color: var(--green-2);
}

.credits-dialog h2 {
  margin: 6px 0 0;
  font-family: Georgia, Times New Roman, serif;
  font-size: 2rem;
}

.credits-dialog ul {
  margin: 0;
  padding-left: 20px;
}

.credits-dialog li,
.credits-dialog > p {
  margin: 0 0 10px;
  font-size: 0.82rem;
  line-height: 1.5;
}

.credits-dialog > p {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 700px) {
  .viewer-header,
  .evidence-panel {
    grid-template-columns: 1fr;
  }

  .viewer-header {
    gap: 24px;
  }

  .intro {
    max-width: 620px;
  }

  .comparison {
    grid-template-columns: 1fr;
  }

  .compare-control {
    position: static;
    grid-template-columns: auto minmax(160px, 1fr);
    width: 100%;
    padding: 0;
    align-items: center;
  }

  .compare-control label {
    text-align: left;
  }

  .compare-control p {
    grid-column: 1 / -1;
    text-align: left;
  }

  .image-stage {
    height: min(62vw, 440px);
  }

  .viewpoint {
    min-height: 0;
  }

  body {
    padding: 6px;
  }

  .time-layer {
    border-radius: 18px;
  }

  .viewer-header {
    gap: 12px;
    padding: 18px;
  }

  .eyebrow {
    font-size: 0.62rem;
  }

  .viewer-header h1 {
    margin-top: 7px;
    font-size: clamp(1.75rem, 7vw, 2.4rem);
    line-height: 1;
  }

  .intro {
    padding-left: 10px;
    font-size: 0.78rem;
    line-height: 1.35;
  }

  .timeline {
    padding: 14px 12px 0;
  }

  .timeline-heading {
    margin-bottom: 8px;
  }

  .viewpoint-note {
    display: none;
  }

  .year-tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    padding-bottom: 12px;
  }

  .year-tab {
    min-height: 44px;
    padding: 8px 3px;
    align-items: center;
    justify-content: center;
  }

  .tab-year {
    font-size: 0.9rem;
  }

  .tab-label {
    display: none;
  }

  .comparison {
    gap: 8px;
    padding: 12px;
  }

  .photo-meta {
    display: block;
    min-height: 0;
    padding: 9px;
  }

  .photo-role {
    font-size: 0.58rem;
  }

  .photo-meta h2 {
    margin-top: 4px;
    font-size: 0.9rem;
  }

  .evidence-badge,
  .compare-control p {
    display: none;
  }

  .image-stage {
    height: 130px;
  }

  .viewpoint {
    display: none;
  }

  .compare-control {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 6px;
  }

  .evidence-panel {
    display: block;
    padding: 14px 12px;
  }

  .evidence-panel > div:first-child {
    display: none;
  }

  .evidence-grid {
    grid-template-columns: 1fr;
    border-top: 0;
  }

  .evidence-grid article,
  .evidence-grid article:last-child {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 7px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  }

  .evidence-grid article:last-child {
    border-bottom: 0;
  }

  .evidence-grid span {
    flex: 0 0 72px;
    font-size: 0.54rem;
  }

  .evidence-grid h3 {
    margin: 0;
    font-size: 0.82rem;
  }

  .evidence-grid p {
    display: none;
  }

  .viewer-footer {
    flex-direction: row;
    gap: 10px;
    align-items: center;
    padding: 12px;
  }

  .viewer-footer p {
    font-size: 0.68rem;
    line-height: 1.35;
  }

  .credits-trigger {
    padding: 8px 10px;
    font-size: 0.72rem;
  }
}

@media (max-width: 600px) {
  .credits-dialog {
    right: 10px;
    bottom: 10px;
    width: calc(100% - 20px);
    max-height: calc(100% - 20px);
    padding: 20px;
  }
}

@media (max-width: 300px) {
  .viewer-header {
    padding: 14px 12px;
  }

  .intro {
    font-size: 0.72rem;
  }

  .timeline-heading h2 {
    font-size: 0.72rem;
  }

  .year-tab {
    min-height: 40px;
  }

  .tab-year {
    font-size: 0.78rem;
  }

  .image-stage {
    height: 110px;
  }

  .viewer-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}