:root {
  color-scheme: light;
  --bg: #ffffff;
  --ink: #1c1b1f;
  --muted: #5a5856;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-strong: #f3f1ed;
  --accent: #264653;
  --accent-2: #2a9d8f;
  --accent-3: #e76f51;
  --gradient-accent: #31a3c5;
  --shadow: rgba(16, 16, 24, 0.12);
  --ring: rgba(42, 157, 143, 0.25);
  --radius: 16px;
  --mono: "Google Sans Code", "SFMono-Regular", monospace;
  --serif: "Google Sans", "Segoe UI", sans-serif;
  --sans: "Google Sans", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  overflow-y: auto;
  position: relative;
}

body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 400px;
  background: linear-gradient(180deg, #31a3c565 0%, rgba(242, 243, 245, 0) 100%);
  pointer-events: none;
  z-index: 0;
}

.paper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 24px 96px;
  display: flex;
  flex-direction: column;
  gap: 36px;
  position: relative;
  z-index: 1;
}


.paper-hero {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.paper-hero.centered {
  align-items: center;
  text-align: center;
}

.paper-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 28px;
}

.paper-logo svg {
  width: auto;
  height: 28px;
}

.paper-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: nowrap;
  max-width: 100%;
  overflow: visible;
}

.paper-logos > * {
  align-self: center;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.paper-logo-img {
  height: 28px;
  width: auto;
  display: block;
  object-fit: contain;
}

.logo-google svg {
  height: 34px;
}

.logo-ethar {
  height: 52px;
}

.logo-ethz {
  height: 28px;
}

.logo-mpi {
  height: 52px;
}

.logo-vlg {
  height: 40px;
}

.paper-kicker {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--muted);
}

.paper-title {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  margin: 0;
}

.paper-authors {
  font-size: 15px;
  color: var(--muted);
}

.paper-meta {
  font-size: 13px;
  color: var(--accent);
}

.paper-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(38, 70, 83, 0.3);
}

.paper-link:hover {
  border-bottom-color: rgba(38, 70, 83, 0.8);
}

.paper-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.paper-section h2 {
  font-family: var(--serif);
  font-size: 20px;
  margin: 0;
}

.paper-section p {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

.centered-section {
  text-align: center;
}

.centered-section p {
  max-width: 820px;
  margin: 0 auto;
}

.paper-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}

.paper-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.method-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: start;
}

.keystep-problem-layout {
  grid-template-columns: minmax(0, 1fr);
}

.figure-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: start;
  justify-items: stretch;
  width: 100%;
}

.figure-row .figure-block {
  width: 100%;
  align-items: center;
}

.figure-row .figure-embed {
  width: 100%;
}

.method-notes {
  grid-column: auto;
}

.method-notes p + p {
  margin-top: 12px;
}

.paper-callout {
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--panel-strong);
  border-radius: 12px;
  font-size: 13px;
  color: var(--accent);
}

.table-wrap {
  margin-top: 16px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.table-caption {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  min-width: 920px;
}

.results-table th,
.results-table td {
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 6px 8px;
  text-align: center;
  white-space: nowrap;
}

.results-table th {
  background: var(--panel-strong);
  font-weight: 600;
}

.results-table .c0 { background: rgb(130, 201, 224); }
.results-table .c1 { background: rgb(163, 215, 232); }
.results-table .c2 { background: rgb(177, 221, 236); }
.results-table .c3 { background: rgb(188, 226, 238); }
.results-table .c4 { background: rgb(197, 230, 241); }
.results-table .c5 { background: rgb(205, 233, 243); }
.results-table .c6 { background: rgb(212, 236, 244); }
.results-table .c7 { background: rgb(218, 239, 246); }
.results-table .c8 { background: rgb(224, 242, 247); }
.results-table .c9 { background: rgb(230, 244, 249); }
.results-table .c10 { background: rgb(236, 247, 250); }
.results-table .c11 { background: rgb(241, 249, 251); }
.results-table .c12 { background: rgb(246, 251, 253); }
.results-table .c13 { background: rgb(250, 253, 254); }
.results-table .c14 { background: rgb(255, 255, 255); }


.math-block p {
  margin: 0 0 12px;
}

.math-block p strong {
  color: var(--accent);
}

.figure-placeholder {
  min-height: 160px;
  border-radius: 12px;
  border: 1px dashed rgba(0, 0, 0, 0.2);
  display: grid;
  place-items: center;
  font-size: 13px;
  color: var(--muted);
}

.figure-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.figure-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.figure-embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
  border-radius: 0;
  background: transparent;
}

.figure-caption {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.metric-card {
  background: var(--panel);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 18px 40px var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metric-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.metric-value {
  font-family: var(--serif);
  font-size: 28px;
  color: var(--accent-2);
}

.metric-note {
  font-size: 12px;
  color: var(--muted);
}

.hidden {
  display: none;
}

.layout {
  display: block;
  width: 100%;
}

.interactive-layout {
  display: block;
}

.panel {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px var(--shadow);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-title {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.controls {
  overflow: visible;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field.inline {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.field-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

select,
input[type="text"],
input[type="range"] {
  font-family: var(--sans);
  border: none;
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--panel-strong);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

input[type="text"]:focus,
select:focus,
button:focus {
  outline: 2px solid var(--ring);
}

button {
  font-family: var(--sans);
  border: none;
  border-radius: 10px;
  padding: 10px 10px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

button.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 30px rgba(38, 70, 83, 0.25);
}

button:hover {
  transform: translateY(-1px);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.segmented button {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 10px;
}

.segmented button.active {
  background: var(--accent-2);
  color: #fff;
  border-color: transparent;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  inset: 0;
  cursor: pointer;
  background-color: rgba(0, 0, 0, 0.15);
  border-radius: 20px;
  transition: 0.3s;
}

.slider::before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  top: 3px;
  background-color: #fff;
  border-radius: 50%;
  transition: 0.3s;
}

.switch input:checked + .slider {
  background-color: var(--accent-2);
}

.switch input:checked + .slider::before {
  transform: translateX(20px);
}

.stats {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  white-space: pre-line;
}

.legend {
  display: grid;
  gap: 6px;
}

.legend-group {
  display: grid;
  gap: 6px;
}

.legend-subtitle {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-top: 6px;
}

.legend-floating.hidden {
  display: none;
}

.legend-floating {
  position: absolute;
  right: 12px;
  top: 36px;
  max-width: 220px;
  background-color: #ffffff !important;
  opacity: 1;
  mix-blend-mode: normal;
  backdrop-filter: none;
  filter: none;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 10px 12px;
  box-shadow: 0 12px 30px rgba(16, 16, 24, 0.08);
  isolation: isolate;
  z-index: 20;
}

.legend-floating * {
  opacity: 1;
}

.legend-floating::before {
  content: "";
  position: absolute;
  inset: 0;
  background: #ffffff !important;
  border-radius: 12px;
  z-index: 0;
}

.legend-floating > * {
  position: relative;
  z-index: 1;
}

.legend-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 8px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

.legend-swatch--ego {
  background: #111;
  border-radius: 999px;
}

.legend-swatch--exo {
  background: #111;
  border-radius: 2px;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.verb-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.verb-chip.active {
  color: var(--accent);
  border-color: rgba(38, 70, 83, 0.3);
  background: rgba(38, 70, 83, 0.08);
}

.verb-chip-swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: #ccc;
  border: 1px solid rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

.viz {
  padding: 0;
  overflow: visible;
  position: relative;
  background: transparent;
  box-shadow: none;
}

.canvas-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(240px, 1fr));
  gap: 28px;
  align-items: start;
  justify-content: stretch;
  width: 100%;
  margin: 0 auto;
}

.canvas-grid.large {
  grid-template-columns: repeat(3, minmax(280px, 1fr));
  gap: 32px;
}

.canvas-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
  align-items: center;
  width: 100%;
  position: relative;
}

.canvas-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}

.canvas-wrap {
  position: relative;
  flex: 1;
  border-radius: var(--radius);
  border: 1px solid rgba(20, 20, 24, 0.16);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  width: 100%;
  z-index: 1;
}

.canvas-wrap canvas {
  width: 100%;
  height: 100%;
  display: block;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.1));
  border-radius: var(--radius);
  pointer-events: auto;
}

.tooltip {
  position: fixed;
  pointer-events: none;
  background: rgba(20, 20, 24, 0.9);
  color: #fff;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 12px;
  max-width: 260px;
  transform: translate(0, 0);
  z-index: 60;
}

.tooltip.hidden {
  opacity: 0;
}

.tooltip-title {
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 4px;
}

.tooltip-meta {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
}

.hud {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.hud-chip {
  background: rgba(255, 255, 255, 0.8);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--accent);
}

.status-chip {
  display: none;
}

.control-fab {
  position: absolute;
  top: 36px;
  left: 12px;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  background: var(--accent-2);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: 0 14px 30px rgba(42, 157, 143, 0.3);
  display: grid;
  place-items: center;
  z-index: 40;
}

.control-fab::before,
.control-fab::after {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  background: #fff;
  border-radius: 50%;
}

.control-fab::before {
  box-shadow: -10px 0 0 #fff, 10px 0 0 #fff;
}

.control-fab::after {
  display: none;
}

.control-menu {
  position: absolute;
  top: 88px;
  left: 24px;
  width: 260px;
  background: var(--panel);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 24px 60px var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  transform: translateY(-8px) scale(0.98);
  transform-origin: top left;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-height: 70vh;
  overflow-y: auto;
  z-index: 30;
}

.control-menu.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

@media (max-width: 900px) {
  .canvas-grid {
    grid-template-columns: 1fr;
  }
}

.video-panel {
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.paper-video {
  width: 100%;
  max-width: 100%;
  display: block;
  margin: 0;
  padding: 0;
  line-height: 0;
  background: transparent;
  box-shadow: none;
}

.video-panel-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin-bottom: 8px;
}

.video-panel-title {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.video-query-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.phyworld-grid-section {
  gap: 16px;
}

.phyworld-grid-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  align-items: start;
  width: 100%;
}

.phyworld-grid-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.phyworld-grid-col-title {
  font-size: 14px;
  text-align: center;
  color: var(--accent);
  font-weight: 600;
}

.phyworld-grid-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.phyworld-grid-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
}

.phyworld-grid-subtitles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  width: 100%;
  align-items: center;
}

.phyworld-grid-subtitle {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
  line-height: 1.2;
}

.phyworld-grid-subtitle--query {
  grid-column: 1 / span 1;
}

.phyworld-grid-subtitle--matches {
  grid-column: 2 / span 3;
}

.montage-title-row {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  align-items: center;
}

.phyworld-grid-video {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 6px;
}

.phyworld-grid-frame {
  width: 100%;
  border-radius: 6px;
  background: #ffffff;
  box-shadow: 0 18px 40px rgba(10, 20, 34, 0.15);
}

.paper-vids-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  width: 100%;
}

.keystep-problem-grid {
  --keystep-label-col: 32px;
  --keystep-label-gap: 6px;
  --keystep-caption-offset: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  width: 100%;
}

.keystep-problem-row {
  display: grid;
  grid-template-columns: 1.1fr 4.3fr;
  column-gap: 8px;
  row-gap: 6px;
  align-items: stretch;
}

.keystep-cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.keystep-cell--query {
  align-self: center;
}

.keystep-cell--grid {
  gap: 2px;
}

.keystep-cell--query .keystep-query {
  transform: none;
}

.keystep-cell--spacer {
  min-height: 0;
}

.keystep-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
}

.keystep-title-centered {
  width: 100%;
}

.keystep-title-empty {
  visibility: hidden;
}

.keystep-grid-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.keystep-grid-row {
  display: grid;
  grid-template-columns: var(--keystep-label-col) minmax(0, 1fr);
  gap: var(--keystep-label-gap);
  align-items: stretch;
  width: 100%;
}

.keystep-grid-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: calc(100% - var(--keystep-label-col) - var(--keystep-label-gap));
  margin-left: calc(var(--keystep-label-col) + var(--keystep-label-gap));
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
}

.keystep-grid-track > div {
  color: rgba(176, 92, 92, 0.86);
}

.keystep-grid-track > .keystep-grid-track-hit {
  color: var(--accent-2);
}

.keystep-grid-track--top {
  margin-bottom: 0;
}

.keystep-grid-track--bottom {
  margin-top: 0;
}

.keystep-grid-main-title {
  width: calc(100% - var(--keystep-label-col) - var(--keystep-label-gap));
  margin-left: calc(var(--keystep-label-col) + var(--keystep-label-gap));
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
}

.keystep-grid-title {
  margin-left: calc(var(--keystep-label-col) + var(--keystep-label-gap));
  width: calc(100% - var(--keystep-label-col) - var(--keystep-label-gap));
  text-align: center;
}

.keystep-grid-labels {
  display: grid;
  grid-template-rows: repeat(2, 1fr);
  align-items: center;
  justify-items: center;
}

.keystep-grid-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  transform: rotate(-90deg);
  transform-origin: center;
  white-space: nowrap;
}

.keystep-query {
  display: flex;
  align-items: center;
  height: 100%;
}

.keystep-query-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
}

.paper-vids-grid-wrap {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 6px;
  width: 100%;
  align-items: stretch;
}

.paper-vids-labels {
  display: grid;
  grid-template-rows: repeat(7, 1fr);
  align-items: center;
  gap: 0;
  justify-items: center;
}

.paper-vids-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
  padding: 0;
  transform: rotate(-90deg);
  transform-origin: center;
  white-space: nowrap;
  margin-bottom: -15px;
}

.paper-vid-item {
  border-radius: 14px;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 14px 28px rgba(16, 16, 24, 0.12);
}

.paper-vid-item.paper-video {
  border-radius: 12px;
  background: transparent;
  box-shadow: none;
  padding: 0;
  line-height: 0;
  width: 100%;
}

.paper-vid-item.keystep-query {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.paper-vid-item.keystep-query .video-card-title {
  font-weight: 600;
}

.paper-vid-item.keystep-query .video-card-title,
.paper-vid-item.keystep-grid .video-card-title {
  padding: 6px 8px 8px;
}

.paper-vid-item.keystep-query .paper-vid {
  border-radius: 0;
}

.paper-vid {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  vertical-align: middle;
}


.video-query-header h2 {
  margin: 0 0 6px;
}

.video-query-header p {
  margin: 0;
  color: var(--muted);
  text-align: center;
}

.video-query-controls {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

.video-config-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.video-config-btn {
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: #fff;
  color: #101117;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.video-config-btn .config-tag {
  margin-left: 6px;
  font-size: 10px;
  font-weight: 700;
  color: #6b5ca5;
  background: rgba(107, 92, 165, 0.14);
  border-radius: 999px;
  padding: 2px 8px;
  letter-spacing: 0.08em;
}

.video-config-btn:hover {
  border-color: rgba(42, 157, 143, 0.6);
  box-shadow: 0 8px 16px rgba(42, 157, 143, 0.18);
}

.video-config-btn.active {
  background: rgba(42, 157, 143, 0.12);
  border-color: rgba(42, 157, 143, 0.8);
  color: #0f3e39;
}

.video-shuffle-btn {
  border: 1px solid rgba(0, 0, 0, 0.14);
  background: rgba(42, 157, 143, 0.12);
  color: #0f3e39;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.video-nav-btn {
  border: 1px solid rgba(0, 0, 0, 0.14);
  background: rgba(42, 157, 143, 0.12);
  color: #0f3e39;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all 0.2s ease;
}

.video-nav-btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.video-shuffle-btn:hover {
  border-color: rgba(42, 157, 143, 0.8);
  box-shadow: 0 10px 18px rgba(42, 157, 143, 0.2);
}

.video-nav-btn:hover {
  border-color: rgba(42, 157, 143, 0.8);
  box-shadow: 0 10px 18px rgba(42, 157, 143, 0.2);
}

.video-gallery-status {
  font-size: 12px;
  color: var(--muted);
}

.video-gallery-wrap {
  position: relative;
  min-height: 320px;
}

.video-gallery-overlay {
  position: absolute;
  inset: -12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
  color: #101117;
  border-radius: 18px;
  z-index: 3;
  opacity: 1;
  transition: opacity 0.35s ease;
}

.video-gallery-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.video-gallery-overlay-inner {
  width: min(320px, 80%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.video-gallery-overlay-label {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.video-query-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.video-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
}

.video-zeroshot-section .video-query-header {
  gap: 10px;
}

.video-zeroshot-section .video-query-header p {
  text-align: left;
}

.video-result-header {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
  align-items: center;
}

.video-result-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
}

.video-result-title-query {
  grid-column: 1 / span 1;
}

.video-result-title-matches {
  grid-column: 2 / span 5;
}

.video-query-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.video-query-title-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  align-items: center;
}

.video-result-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.video-card {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 8px 18px rgba(16, 16, 24, 0.08);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  cursor: pointer;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.video-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(16, 16, 24, 0.12);
}

.video-card.selected {
  border-color: var(--gradient-accent);
  box-shadow: 0 0 0 2px rgba(49, 163, 197, 0.25), 0 16px 28px rgba(49, 163, 197, 0.26);
}

.video-card.verb-match {
  border-color: rgba(42, 157, 143, 0.95);
  box-shadow: 0 0 0 2px rgba(42, 157, 143, 0.22), 0 14px 24px rgba(42, 157, 143, 0.22);
}

.video-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  background: #0b0f16;
  object-fit: cover;
  transform: scale(1.06);
  transform-origin: center;
  display: block;
}

.video-thumb.placeholder {
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: linear-gradient(120deg, #1f2937, #0f172a);
}

.video-card-title {
  font-size: 12px;
  color: var(--muted);
}

.video-card-rank {
  font-size: 10px;
  color: #fff;
  background: var(--accent-2);
  border-radius: 999px;
  padding: 2px 8px;
  align-self: flex-start;
}

.video-card-query {
  background: rgba(49, 163, 197, 0.9);
}

@media (max-width: 900px) {
  .video-result-header {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .video-query-row,
  .video-query-title-row,
  .video-result-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .video-query-row,
  .video-query-title-row,
  .video-result-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}


@media (max-width: 700px) {
  .paper {
    padding: 32px 18px 72px;
  }
}