.theme-toggle {
  min-height: 44px;
}

.attention-mark {
  font-size: 0.56rem;
  letter-spacing: -0.08em;
}

.attention-mark sup {
  position: relative;
  top: -0.25em;
  margin-left: 1px;
  font-size: 0.62em;
}

.attention-hero h1 {
  font-size: clamp(4rem, 6.1vw, 5.9rem);
}

.attention-hero .hero-figure img {
  object-position: center;
}

.attention-flow-wrap {
  margin-top: 52px;
  padding-bottom: 14px;
  overflow-x: auto;
  scrollbar-color: var(--line-strong) transparent;
}

.attention-flow {
  display: grid;
  min-width: 1180px;
  grid-template-columns: 1.05fr 28px 0.85fr 28px 1fr 28px 0.88fr 28px 1fr 28px 1.08fr;
  align-items: center;
  gap: 10px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.attention-flow-node {
  min-height: 166px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-solid);
}

.attention-flow-node small {
  display: block;
  color: var(--accent-deep);
  font-family: var(--mono);
  font-size: 0.61rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.attention-flow-node strong {
  display: block;
  margin-top: 16px;
  font-family: var(--display);
  font-size: 1.32rem;
  font-weight: 500;
  line-height: 1.08;
}

.attention-flow-node span {
  display: block;
  margin-top: 10px;
  color: var(--ink-faint);
  font-size: 0.75rem;
  line-height: 1.45;
}

.attention-flow-node.accent-node {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: var(--accent-soft);
}

.attention-flow-arrow {
  position: relative;
  height: 1px;
  background: var(--line-strong);
}

.attention-flow-arrow::after {
  position: absolute;
  top: -3px;
  right: 0;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--line-strong);
  border-right: 1px solid var(--line-strong);
  content: "";
  transform: rotate(45deg);
}

.attention-equation strong {
  font-size: clamp(1.35rem, 2.6vw, 2.3rem);
}

.attention-equation sup,
.attention-equation sub {
  font-size: 0.58em;
}

.attention-lab-controls {
  grid-template-columns: minmax(390px, 1.2fr) minmax(180px, 0.55fr) auto;
}

.phase-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.mask-toggle {
  display: flex;
  width: 100%;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
  color: var(--ink-soft);
  cursor: pointer;
  font-size: 0.73rem;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s var(--ease);
}

.mask-toggle strong {
  color: var(--accent-deep);
  font-family: var(--mono);
  font-size: 0.64rem;
  text-transform: uppercase;
}

.mask-toggle[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--ink);
}

.mask-toggle:hover {
  border-color: var(--line-strong);
}

.mask-toggle:active {
  transform: translateY(1px) scale(0.99);
}

.mask-toggle:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.attention-actions {
  min-width: max-content;
}

.attention-workbench {
  display: grid;
  gap: 24px;
  padding: 30px;
}

.query-zone {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-solid) 78%, transparent);
}

.query-zone .panel-heading {
  margin-bottom: 7px;
}

.query-instruction {
  color: var(--ink-faint);
  font-size: 0.82rem;
}

.token-picker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 22px;
}

.token-picker button {
  min-height: 56px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  background: var(--paper-soft);
  color: var(--ink-soft);
  cursor: pointer;
  font-weight: 790;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease, transform 0.2s var(--ease);
}

.token-picker button:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.token-picker button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--ink);
  color: var(--paper-soft);
}

.token-picker button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.route-map {
  height: 220px;
  margin-top: 8px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.route-map svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.attention-arc {
  fill: none;
  stroke: var(--ink-faint);
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  transition: stroke 0.28s ease, stroke-width 0.28s var(--ease), opacity 0.28s ease;
}

.attention-arc.is-strongest {
  stroke: var(--accent);
}

.attention-arc.is-masked {
  stroke-dasharray: 5 7;
  opacity: 0.2;
}

.query-vector {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 16px;
}

.query-vector span {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.63rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.query-vector strong {
  color: var(--accent-deep);
  font-family: var(--mono);
  font-size: 0.76rem;
}

.formula-progress {
  display: grid;
  grid-template-columns: 1fr auto 0.7fr auto 0.92fr;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper-soft);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 800;
  text-align: center;
}

.formula-progress span {
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--ink-faint);
  transition: background-color 0.22s ease, color 0.22s ease, transform 0.22s var(--ease);
}

.formula-progress span.is-active,
.formula-progress span.is-complete {
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.formula-progress span.is-active {
  transform: translateY(-2px);
}

.formula-progress b {
  color: var(--line-strong);
}

.calculation-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.calculation-head .control-label {
  margin-bottom: 4px;
}

.calculation-head > div > strong {
  font-size: 0.94rem;
}

.calculation-head > span {
  color: var(--accent-deep);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 800;
}

.token-calculations {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.attention-token-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-solid);
  transition: border-color 0.24s ease, background-color 0.24s ease, transform 0.24s var(--ease), opacity 0.24s ease;
}

.attention-token-card.is-query {
  border-color: color-mix(in srgb, var(--accent) 65%, var(--line));
}

.attention-token-card.is-strongest {
  background: var(--accent-soft);
  transform: translateY(-3px);
}

.attention-token-card.is-masked {
  opacity: 0.5;
}

.attention-token-head {
  display: grid;
  min-height: 45px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 9px;
  align-items: baseline;
  margin-bottom: 10px;
}

.token-number {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 800;
}

.token-status {
  padding-left: 8px;
  border-left: 2px solid var(--line-strong);
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.query-status,
.strongest-status {
  border-left-color: var(--accent);
  color: var(--accent-deep);
}

.attention-token-card h4 {
  min-width: 0;
  margin: 0;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 500;
}

.score-row,
.weight-row,
.value-row,
.contribution-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 7px 10px;
  align-items: center;
  min-height: 48px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
  transition: opacity 0.22s ease, color 0.22s ease;
}

.score-row.is-active,
.weight-row.is-active,
.value-row.is-active,
.contribution-row.is-active {
  color: var(--accent-deep);
}

.calculation-label {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.58rem;
  font-weight: 800;
  text-transform: uppercase;
}

.calculation-value {
  min-width: 0;
  overflow: hidden;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.65rem;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calculation-row.is-active .calculation-label,
.calculation-row.is-active .calculation-value {
  color: var(--accent-deep);
}

.calculation-math {
  min-width: 0;
  overflow: hidden;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.55rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.score-track,
.weight-track {
  position: relative;
  min-width: 62px;
  height: 14px;
  border-bottom: 1px solid var(--line-strong);
}

.score-track::before {
  position: absolute;
  top: 2px;
  bottom: -1px;
  left: 50%;
  width: 1px;
  background: var(--line-strong);
  content: "";
}

.score-fill,
.weight-fill {
  position: absolute;
  bottom: -1px;
  height: 5px;
  border-radius: 5px 5px 0 0;
  background: var(--ink-faint);
  transform-origin: left center;
  transition: width 0.3s var(--ease), left 0.3s var(--ease), background-color 0.3s ease;
}

.score-fill {
  left: 50%;
}

.score-fill.is-negative {
  background: var(--line-strong);
  transform: translateX(-100%);
  transform-origin: right center;
}

.weight-fill {
  left: 0;
  background: var(--accent);
}

.attention-token-card.is-masked .score-fill,
.attention-token-card.is-masked .weight-fill {
  width: 0 !important;
}

.attention-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.46fr);
  gap: 34px;
  align-items: center;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink);
  color: var(--paper-soft);
}

.result-copy > strong {
  display: block;
  margin-top: 2px;
  color: var(--accent-on-contrast);
  font-family: var(--display);
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

html[data-theme="dark"] .result-copy > strong {
  color: var(--accent-deep);
}

.result-copy .control-label {
  color: color-mix(in srgb, var(--paper-soft) 60%, transparent);
}

.result-copy p {
  max-width: 690px;
  margin-top: 12px;
  color: color-mix(in srgb, var(--paper-soft) 72%, transparent);
  font-size: 0.83rem;
}

.vector-bars {
  display: grid;
  gap: 18px;
}

.vector-bars > div {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  align-items: end;
  min-height: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
}

.vector-bars span {
  padding-bottom: 3px;
  color: color-mix(in srgb, var(--paper-soft) 60%, transparent);
  font-family: var(--mono);
  font-size: 0.64rem;
}

.vector-bars i {
  display: block;
  width: 50%;
  height: 8px;
  border-radius: 6px 6px 0 0;
  background: var(--accent-on-contrast);
  transition: width 0.32s var(--ease);
}

html[data-theme="dark"] .vector-bars i {
  background: var(--accent-deep);
}

.model-specs {
  display: grid;
  grid-template-columns: 1.05fr 0.9fr 0.8fr 1.25fr;
  margin-top: 48px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.model-specs > div {
  min-height: 132px;
  padding: 26px 24px 24px 0;
}

.model-specs > div + div {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.model-specs strong {
  display: block;
  color: var(--accent-deep);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
}

.model-specs span {
  display: block;
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.transformer-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 120px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  margin-top: 54px;
}

.stack-column {
  display: grid;
  gap: 10px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--panel-radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.stack-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 17px;
  border-bottom: 1px solid var(--line);
}

.stack-heading small,
.stack-repeat,
.cross-route span {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stack-heading h3 {
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: -0.035em;
}

.stack-node {
  min-height: 52px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-solid);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 760;
}

.accent-stack-node {
  border-color: color-mix(in srgb, var(--accent) 54%, var(--line));
  background: var(--accent-soft);
  color: var(--ink);
}

.stack-column > span {
  height: 8px;
  color: var(--accent-deep);
  font-family: var(--mono);
  line-height: 0.55;
  text-align: center;
}

.stack-repeat {
  padding-top: 8px;
  text-align: center;
}

.cross-route {
  display: grid;
  gap: 8px;
  color: var(--accent-deep);
  text-align: center;
}

.cross-route b {
  font-family: var(--mono);
  font-size: 2.2rem;
  font-weight: 500;
}

.transformer-notes {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 0 42px;
  margin-top: 52px;
  border-top: 1px solid var(--line);
}

.transformer-notes article {
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.transformer-notes h3 {
  font-size: 0.9rem;
}

.transformer-notes p {
  margin-top: 7px;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

@media (max-width: 1040px) {
  .attention-hero h1 {
    font-size: clamp(3.6rem, 6.2vw, 4.7rem);
  }

  .attention-lab-controls {
    grid-template-columns: 1fr 0.72fr;
  }

  .attention-actions {
    grid-column: 1 / -1;
  }

  .token-calculations {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 800px) {
  .attention-hero h1 {
    font-size: clamp(3.35rem, 12.8vw, 5.3rem);
  }

  .attention-workbench {
    padding: 22px;
  }

  .route-map {
    height: 190px;
  }

  .attention-result {
    grid-template-columns: 1fr;
  }

  .model-specs {
    grid-template-columns: 1fr 1fr;
  }

  .model-specs > div {
    min-height: 112px;
    padding: 22px 20px;
    border-bottom: 1px solid var(--line);
  }

  .model-specs > div + div {
    padding-left: 20px;
  }

  .model-specs > div:nth-child(3) {
    border-left: 0;
  }

  .transformer-board {
    grid-template-columns: 1fr;
  }

  .cross-route {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
  }

  .cross-route::before,
  .cross-route::after {
    height: 1px;
    background: var(--line);
    content: "";
  }

  .cross-route b {
    transform: rotate(90deg);
  }
}

@media (max-width: 560px) {
  .theme-toggle {
    min-width: 44px;
    justify-content: center;
    padding: 10px;
  }

  .attention-hero h1 {
    font-size: clamp(3rem, 14.7vw, 4rem);
  }

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

  .attention-actions {
    grid-column: auto;
    min-width: 0;
  }

  .attention-workbench,
  .query-zone {
    padding: 18px;
  }

  .token-picker {
    grid-template-columns: 1fr 1fr;
  }

  .route-map {
    display: none;
  }

  .query-vector,
  .calculation-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .query-vector {
    display: grid;
    gap: 6px;
    margin-top: 16px;
  }

  .formula-progress {
    gap: 5px;
    padding: 12px 8px;
    font-size: 0.64rem;
  }

  .formula-progress span {
    padding: 7px 5px;
  }

  .calculation-head {
    display: flex;
  }

  .token-calculations,
  .transformer-notes {
    grid-template-columns: 1fr;
  }

  .attention-token-card.is-strongest {
    transform: none;
  }

  .result-copy > strong {
    font-size: 2.6rem;
  }

  .model-specs {
    grid-template-columns: 1fr 1fr;
  }

  .model-specs strong {
    font-size: 2.25rem;
  }

  .stack-column {
    padding: 18px;
  }
}

@media (max-width: 390px) {
  .attention-hero h1 {
    font-size: 2.85rem;
  }

  .formula-progress {
    grid-template-columns: 1fr;
  }

  .formula-progress b {
    transform: rotate(90deg);
  }

  .model-specs {
    grid-template-columns: 1fr;
  }

  .model-specs > div + div {
    padding-left: 20px;
    border-left: 0;
  }
}