:root {
  color-scheme: dark;
  --ink: #f5f3e9;
  --muted: #9fa99e;
  --line: rgba(255, 255, 255, 0.11);
  --panel: rgba(255, 255, 255, 0.055);
  --green: #0b3b2e;
  --lime: #c9ff50;
  --blue: #69c8ff;
  --orange: #ff9d5c;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #071f19;
  color: var(--ink);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  overflow-x: hidden;
}

body {
  width: 100%;
  min-width: 320px;
  max-width: 720px;
  min-height: 100vh;
  margin: 0 auto;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 90% 2%, rgba(201, 255, 80, 0.12), transparent 25rem),
    linear-gradient(180deg, #0b3b2e 0, #071f19 32rem, #071713 100%);
  padding-bottom: calc(5.4rem + env(safe-area-inset-bottom));
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

.app-header {
  display: flex;
  justify-content: flex-end;
  padding: max(0.75rem, env(safe-area-inset-top)) 1.25rem 0.65rem;
}

.eyebrow,
.step-number {
  margin: 0 0 0.45rem;
  color: var(--lime);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.16em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2.4rem, 10vw, 4.2rem);
  font-weight: 900;
  letter-spacing: -0.065em;
  line-height: 0.8;
  text-transform: uppercase;
}

h1 span {
  color: transparent;
  -webkit-text-stroke: 1px rgba(245, 243, 233, 0.8);
}

h2 {
  margin-bottom: 0;
  font-size: 1.35rem;
  letter-spacing: -0.035em;
}

.icon-button {
  width: 2.8rem;
  height: 2.8rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.12);
  font-size: 1.35rem;
}

main {
  width: 100%;
  min-width: 0;
  overflow-x: hidden;
  padding: 0 0.85rem 2rem;
}

.app-view,
#score-mode,
#calculator-form,
.rules-section,
.match-mode,
.match-score-sheet {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

[hidden] {
  display: none !important;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.rules-grid > *,
.field-grid > *,
.score-row > * {
  min-width: 0;
}

.victory-condition {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 0.7rem;
  min-width: 0;
}

.select-with-suffix {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}

.select-with-suffix strong {
  color: var(--ink);
  font-size: 0.75rem;
  white-space: nowrap;
}

.result-panel,
.input-section {
  margin-bottom: 0.85rem;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  background: rgba(7, 23, 19, 0.94);
  box-shadow: 0 1.2rem 4rem rgba(0, 0, 0, 0.14);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.live-badge i {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0.7rem var(--lime);
}

.probability-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
}

.probability-card {
  min-width: 0;
  padding: 0.95rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
}

.probability-card span {
  display: block;
  min-height: 1.2rem;
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 700;
}

.probability-card strong {
  display: block;
  margin: 0.2rem 0 0.7rem;
  font-size: clamp(1.7rem, 8vw, 2.45rem);
  font-weight: 900;
  letter-spacing: -0.07em;
}

.featured {
  background: var(--lime);
  color: #08251d;
}

.featured span {
  color: rgba(8, 37, 29, 0.66);
}

.meter {
  height: 0.22rem;
  overflow: hidden;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.13);
}

.featured .meter {
  background: rgba(8, 37, 29, 0.15);
}

.meter i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: currentColor;
  transition: width 280ms ease;
}

.accent-lime strong,
.accent-lime .meter {
  color: var(--lime);
}

.accent-blue strong,
.accent-blue .meter {
  color: var(--blue);
}

.accent-orange strong,
.accent-orange .meter {
  color: var(--orange);
}

.accent-white .meter {
  color: #08251d;
}

.status-message {
  min-height: 1.1rem;
  margin: 0.75rem 0 0;
  color: #ffad86;
  font-size: 0.72rem;
}

.result-stats-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  margin-top: 0.25rem;
  border-top: 1px solid var(--line);
}

.helper {
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.6;
}

.text-button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--lime);
  font-size: 0.72rem;
  font-weight: 800;
}

.player-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 0.22rem;
  margin-bottom: 1rem;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.06);
}

.player-tab {
  padding: 0.68rem;
  border: 0;
  border-radius: 0.58rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.player-tab.active {
  background: var(--ink);
  color: #08251d;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

label > span,
.segmented-field > span,
.tiebreak-fields label > span {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 2.8rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.72rem;
  outline: none;
  background: rgba(255, 255, 255, 0.055);
  color: var(--ink);
  font-weight: 750;
}

input:focus,
select:focus {
  border-color: var(--lime);
  box-shadow: 0 0 0 2px rgba(201, 255, 80, 0.13);
}

select option {
  background: #0b2d24;
}

.wide-field {
  grid-column: 1 / -1;
}

.score-table {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 1.1rem;
}

.score-row {
  display: grid;
  grid-template-columns: 2.5rem repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 0.45rem;
}

.score-row strong {
  color: var(--lime);
  font-size: 0.75rem;
}

.score-row input,
.score-row select {
  min-width: 0;
  padding-right: 0.35rem;
  padding-left: 0.55rem;
  text-align: center;
}

.score-header {
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
}

.score-note {
  margin: -0.45rem 0 1rem;
  color: var(--muted);
  font-size: 0.6rem;
}

.segmented-field {
  margin-top: 1rem;
}

.segmented-field > div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
}

.segmented-field label input {
  position: absolute;
  width: 1px;
  min-height: 0;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.segmented-field label span {
  display: grid;
  min-height: 2.7rem;
  place-items: center;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 0.72rem;
  color: var(--muted);
  font-size: 0.68rem;
}

.segmented-field label input:checked + span {
  border-color: var(--lime);
  background: rgba(201, 255, 80, 0.1);
  color: var(--lime);
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 0;
  margin-top: 1rem;
  border-top: 1px solid var(--line);
}

.toggle-row span {
  margin: 0;
}

.toggle-row strong {
  display: block;
  color: var(--ink);
  font-size: 0.82rem;
}

.toggle-row small {
  color: var(--muted);
  font-size: 0.66rem;
}

.toggle-row input {
  position: absolute;
  width: 1px;
  min-height: 0;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.toggle-row i {
  position: relative;
  flex: 0 0 2.75rem;
  height: 1.55rem;
  border-radius: 2rem;
  background: rgba(255, 255, 255, 0.13);
  transition: background 180ms ease;
}

.toggle-row i::after {
  position: absolute;
  top: 0.23rem;
  left: 0.23rem;
  width: 1.08rem;
  height: 1.08rem;
  border-radius: 50%;
  background: var(--ink);
  content: "";
  transition: transform 180ms ease;
}

.toggle-row input:checked + i {
  background: var(--lime);
}

.toggle-row input:checked + i::after {
  background: #08251d;
  transform: translateX(1.2rem);
}

.tiebreak-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  padding-top: 1rem;
}

.tiebreak-fields label:last-child {
  grid-column: 1 / -1;
}

.match-controls {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.match-controls .segmented-field {
  margin-top: 0;
}

.secondary-button {
  min-height: 2.7rem;
  border: 1px solid var(--line);
  border-radius: 0.72rem;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 800;
}

.match-score-sheet {
  display: grid;
  gap: 0.8rem;
}

.match-game {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: rgba(255, 255, 255, 0.025);
}

.match-game-grid {
  --point-columns: 12;
  display: grid;
  grid-template-columns: 5rem 3.25rem repeat(var(--point-columns), minmax(0, 1fr));
  width: 100%;
}

.match-game-grid.continuation {
  grid-template-columns: repeat(var(--point-columns), minmax(0, 1fr));
  border-top: 2px solid rgba(201, 255, 80, 0.3);
}

.match-game-grid > * {
  display: grid;
  min-height: 2.25rem;
  place-items: center;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.match-game-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem;
  padding: 0 0.55rem;
  color: var(--ink);
  font-size: 0.68rem;
}

.match-score-label,
.match-point-number {
  color: var(--muted);
  font-size: 0.59rem;
  font-weight: 800;
}

.match-player-label {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  color: var(--lime);
  font-size: 0.72rem;
  white-space: nowrap;
}

.match-player-label.server::before {
  display: inline-block;
  flex: 0 0 auto;
  margin-right: 0.3rem;
  color: var(--lime);
  content: "●";
  font-size: 0.5rem;
}

.match-live-score {
  font-size: 0.85rem;
  font-weight: 900;
}

.match-point-cell {
  width: 100%;
  min-height: 2.25rem;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font-weight: 900;
}

.match-point-cell.selected {
  background: rgba(105, 200, 255, 0.16);
  color: var(--blue);
}

.match-point-cell.double-fault {
  background: rgba(255, 157, 92, 0.18);
  color: var(--orange);
}

.match-point-cell:disabled {
  opacity: 1;
  color: rgba(245, 243, 233, 0.3);
}

.match-summary {
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 0.68rem;
  text-align: center;
  white-space: pre-line;
}

.serve-rate-table {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  margin-top: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
}

.serve-rate-row {
  display: grid;
  grid-template-columns: 2.5rem repeat(6, minmax(4.1rem, 1fr));
  min-width: 31rem;
}

.serve-rate-row > * {
  display: grid;
  min-height: 2.4rem;
  place-items: center;
  padding: 0.35rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 0.65rem;
}

.serve-rate-row:last-child > * {
  border-bottom: 0;
}

.serve-rate-row > :last-child {
  border-right: 0;
}

.serve-rate-header {
  color: var(--muted);
  font-weight: 800;
}

.serve-rate-row strong {
  color: var(--lime);
}

.serve-rate-row output {
  font-weight: 800;
}

.heatmap-player {
  color: var(--lime);
  font-size: 0.62rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.heatmap-player-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-bottom: 1rem;
  padding: 0.2rem;
  border-radius: 0.7rem;
  background: rgba(255, 255, 255, 0.05);
}

.heatmap-analysis-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin: -0.55rem 0 1rem;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
}

.heatmap-analysis-switch button {
  min-height: 2.3rem;
  border: 0;
  border-radius: 0.5rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 850;
}

.heatmap-analysis-switch button.active {
  background: var(--ink);
  color: #08251d;
}

.heatmap-player-switch button {
  min-height: 2.5rem;
  border: 1px solid transparent;
  border-radius: 0.55rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 850;
}

.heatmap-player-switch button.active {
  border-color: var(--lime);
  background: rgba(201, 255, 80, 0.1);
  color: var(--lime);
}

.heatmap-impact {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.25rem 0.7rem;
  margin-bottom: 0.9rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid rgba(201, 255, 80, 0.2);
  border-radius: 0.85rem;
  background: rgba(201, 255, 80, 0.06);
}

.heatmap-impact span {
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.heatmap-impact strong {
  color: var(--lime);
  font-size: 0.82rem;
  text-align: right;
}

.heatmap-impact-detail {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 0.64rem;
  line-height: 1.45;
}

.heatmap-impact-detail.gradient-mode {
  display: block;
}

.heatmap-gradient-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem;
}

.heatmap-gradient-group + .heatmap-gradient-group {
  margin-top: 0.6rem;
}

.heatmap-gradient-group h3 {
  margin: 0 0 0.3rem;
  color: var(--muted);
  font-size: 0.6rem;
  letter-spacing: 0.04em;
}

.heatmap-gradient-ratio {
  padding: 0.55rem;
  border-radius: 0.5rem;
}

.heatmap-vector-wrap {
  margin-bottom: 0.45rem;
  padding: 0.6rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: rgba(0, 0, 0, 0.12);
}

.heatmap-vector-diagram {
  display: block;
  width: min(100%, 68rem);
  height: auto;
  margin: 0 auto;
}

.heatmap-vector-diagram .vector-axis {
  stroke: rgba(245, 243, 233, 0.2);
  stroke-width: 1;
}

.heatmap-vector-diagram text {
  fill: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.heatmap-vector-diagram .vector-component {
  stroke-width: 1.8;
  stroke-linecap: round;
  opacity: 0.9;
}

.heatmap-vector-diagram .vector-result {
  stroke: #fff;
  stroke-width: 3;
  stroke-linecap: round;
  filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.55));
}

.heatmap-vector-diagram .vector-floor {
  fill: rgba(105, 200, 255, 0.035);
  stroke: rgba(105, 200, 255, 0.18);
  stroke-width: 1;
}

.heatmap-vector-diagram .vector-response-surface {
  fill: rgba(201, 255, 80, 0.08);
  stroke: rgba(201, 255, 80, 0.28);
  stroke-width: 1;
}

.heatmap-vector-diagram .vector-z-axis {
  stroke: rgba(245, 243, 233, 0.65);
  stroke-width: 1.5;
}

.heatmap-vector-diagram .vector-z-tick {
  stroke: rgba(245, 243, 233, 0.45);
  stroke-width: 1;
}

.heatmap-vector-diagram .vector-origin {
  fill: #071f19;
  stroke: #fff;
  stroke-width: 2;
}

.heatmap-vector-wrap p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.62rem;
  text-align: center;
}

.heatmap-gradient-ratio.gradient-ascent {
  background: rgba(201, 255, 80, 0.12);
}

.heatmap-gradient-ratio.gradient-descent {
  background: rgba(255, 157, 92, 0.13);
}

.heatmap-gradient-ratio-labels,
.heatmap-gradient-ratio-values {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.3rem;
  text-align: center;
}

.heatmap-gradient-ratio-labels {
  margin-bottom: 0.3rem;
}

.heatmap-gradient-ratio-labels span {
  color: var(--muted);
  font-size: 0.52rem;
  letter-spacing: 0;
}

.heatmap-gradient-ratio-values strong {
  font-size: 0.68rem;
}

.heatmap-gradient-ratio.gradient-ascent strong {
  color: var(--lime);
}

.heatmap-gradient-ratio.gradient-descent strong {
  color: var(--orange);
}

.derived-list {
  margin-top: 0.35rem;
}

.heatmap-gradient-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.42rem 0.5rem;
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.045);
}

.heatmap-gradient-row span {
  color: var(--muted);
  font-size: 0.58rem;
  letter-spacing: 0;
}

.heatmap-gradient-row strong {
  color: var(--ink);
  font-size: 0.65rem;
  white-space: nowrap;
}

.heatmap-gradient-row.gradient-ascent {
  background: rgba(201, 255, 80, 0.12);
}

.heatmap-gradient-row.strongest-positive {
  background: rgba(201, 255, 80, 0.12);
}

.heatmap-gradient-row.gradient-ascent span,
.heatmap-gradient-row.gradient-ascent strong,
.heatmap-gradient-row.strongest-positive span,
.heatmap-gradient-row.strongest-positive strong {
  color: var(--lime);
}

.heatmap-gradient-row.gradient-descent {
  background: rgba(255, 157, 92, 0.13);
}

.heatmap-gradient-row.strongest-negative {
  background: rgba(255, 157, 92, 0.13);
}

.heatmap-gradient-row.gradient-descent span,
.heatmap-gradient-row.gradient-descent strong,
.heatmap-gradient-row.strongest-negative span,
.heatmap-gradient-row.strongest-negative strong {
  color: var(--orange);
}

.heatmap-gradient-row.derived {
  background: rgba(255, 255, 255, 0.025);
}

.heatmap-gradient-row.derived span,
.heatmap-gradient-row.derived strong {
  color: var(--muted);
}

.heatmap-section {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
}

.heatmap-grid {
  display: block;
  width: min(100%, calc(100vw - 4rem));
  max-width: calc(100vw - 4rem);
  min-width: 0;
  overflow: hidden;
}

.heatmap-card {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
  contain: layout paint;
  content-visibility: auto;
  contain-intrinsic-size: auto 28rem;
  margin-bottom: 0.8rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
}

.heatmap-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.55rem;
  min-width: 0;
}

.heatmap-heading > div {
  min-width: 0;
}

.heatmap-heading strong {
  overflow-wrap: anywhere;
}

.heatmap-heading span {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--muted);
  font-size: 0.56rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.heatmap-heading strong {
  font-size: 0.92rem;
}

.heatmap-heading output {
  flex: 0 0 auto;
  max-width: 3.8rem;
  overflow: hidden;
  color: var(--lime);
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.heatmap-canvas {
  display: block;
  max-width: 100%;
  min-width: 0;
  width: 100%;
  height: auto;
  border-radius: 0.65rem;
  touch-action: pan-y;
}

.heatmap-detail {
  min-height: 1rem;
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.62rem;
  text-align: center;
}

.heatmap-legend {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 750;
}

.heatmap-legend i {
  height: 0.45rem;
  border-radius: 1rem;
  background: linear-gradient(90deg, #172c4c, #198f9c 40%, #c9ff50 72%, #fff4b0);
}

.heatmap-subheading {
  padding-top: 1.2rem;
  margin-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.trend-section {
  min-width: 0;
}

.trend-card {
  min-width: 0;
  contain: layout paint;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
}

.trend-player-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-bottom: 0.45rem;
  padding: 0.2rem;
  border-radius: 0.7rem;
  background: rgba(255, 255, 255, 0.05);
}

.trend-player-switch button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.3rem;
  border: 1px solid transparent;
  border-radius: 0.55rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.62rem;
  font-weight: 850;
}

.trend-player-switch button.active {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
}

.trend-player-switch i {
  width: 0.8rem;
  height: 0.18rem;
  border-radius: 1rem;
}

.trend-player-one i {
  background: var(--lime);
}

.trend-player-two i {
  background: var(--blue);
}

.probability-trend-canvas {
  display: block;
  width: 100%;
  height: clamp(18rem, 52vw, 34rem);
  border-radius: 0.65rem;
  background: rgba(0, 0, 0, 0.12);
  touch-action: pan-y;
}

.trend-detail {
  min-height: 1rem;
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.68rem;
  text-align: center;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem calc(1rem + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.56rem;
  letter-spacing: 0.08em;
}

footer strong {
  color: var(--ink);
}

.bottom-nav {
  position: fixed;
  z-index: 100;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  width: min(100%, 720px);
  max-width: 100vw;
  min-height: 4.6rem;
  padding: 0.35rem 0.4rem calc(0.35rem + env(safe-area-inset-bottom));
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  background: #071f19;
  box-shadow: 0 -0.8rem 2.4rem rgba(0, 0, 0, 0.25);
}

.bottom-nav button {
  display: grid;
  min-width: 0;
  min-height: 3.6rem;
  place-content: center;
  gap: 0.12rem;
  border: 0;
  border-radius: 0.75rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.58rem;
  font-weight: 800;
  white-space: nowrap;
}

.bottom-nav button.active {
  background: rgba(201, 255, 80, 0.12);
  color: var(--lime);
}

.bottom-nav-icon {
  display: block;
  font-size: 1.2rem;
  font-weight: 900;
  line-height: 1;
}

@media (min-width: 580px) {
  main {
    padding-right: 1.25rem;
    padding-left: 1.25rem;
  }

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

  .probability-card {
    padding: 1.15rem 0.9rem;
  }

  .probability-card strong {
    font-size: 2rem;
  }

  .heatmap-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
    width: 100%;
    max-width: 100%;
    overflow: visible;
  }

  .heatmap-card-wide {
    grid-column: 1 / -1;
    width: min(100%, 32rem);
    justify-self: center;
  }

  .heatmap-card {
    margin-bottom: 0;
  }

  .heatmap-heading output {
    max-width: 4.5rem;
    font-size: 1.2rem;
  }

  .match-controls {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .secondary-button {
    min-width: 9rem;
  }

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

  .victory-condition {
    grid-column: span 2;
  }
}

@media (min-width: 1100px) {
  body {
    max-width: 1600px;
  }

  .heatmap-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .heatmap-card-wide {
    grid-column: auto;
    width: 100%;
    justify-self: stretch;
  }

  .heatmap-card {
    padding: 0.7rem;
  }

  .heatmap-heading {
    align-items: flex-start;
    min-height: 3.2rem;
  }

  .heatmap-heading strong {
    font-size: 0.78rem;
  }

  .heatmap-heading output {
    max-width: 3.7rem;
    font-size: 0.9rem;
  }

  .heatmap-detail {
    font-size: 0.55rem;
  }

  .bottom-nav {
    width: min(100%, 1600px);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

.stats-rate-grid,.stats-result-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.8rem; }
.stats-rate-grid { margin-bottom:1rem; }
.stats-result-grid .probability-card { min-width:0; }
.stats-model-note { margin:.8rem 0 0; color:var(--muted); font-size:.62rem; line-height:1.55; }
#calculator-form > .input-section:first-child { display:none; }
@media (max-width:480px) { .stats-rate-grid,.stats-result-grid { grid-template-columns:1fr; } }

.trajectory-canvas { display:block; width:100%; height:auto; margin-bottom:.7rem; border:1px solid var(--line); border-radius:1rem; background:rgba(0,0,0,.18); }
.trajectory-plots { display:grid; gap:.8rem; margin-bottom:.8rem; }
.trajectory-main-plot { position:relative; min-width:0; margin:0; }
.trajectory-main-plot .trajectory-canvas { margin-bottom:0; cursor:grab; touch-action:none; user-select:none; }
.trajectory-main-plot .trajectory-canvas.dragging { cursor:grabbing; }
.trajectory-swipe-hint { position:absolute; right:.8rem; bottom:.7rem; padding:.3rem .5rem; border-radius:.45rem; background:rgba(7,31,25,.78); color:var(--muted); font-size:.56rem; font-weight:800; pointer-events:none; }
.trajectory-fixed-plots figure { min-width:0; margin:0; }
.trajectory-fixed-plots { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.8rem; }
.trajectory-fixed-plots figcaption { margin:0 0 .35rem; color:var(--muted); font-size:.65rem; font-weight:800; text-align:center; }
.trajectory-summary { min-height:1.2rem; color:var(--muted); font-size:.68rem; text-align:center; }
.trajectory-controls-box { overflow:hidden; border:1px solid var(--line); border-radius:1rem; background:var(--panel); }
.trajectory-controls-heading { display:flex; align-items:center; justify-content:space-between; gap:1rem; padding:.7rem 1rem; border-bottom:1px solid var(--line); }
.trajectory-controls-heading strong { font-size:.75rem; }
.trajectory-controls-heading span { color:var(--muted); font-size:.58rem; }
.trajectory-controls-heading .text-button { flex:0 0 auto; }
.trajectory-controls { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:.75rem; max-height:min(14rem,30vh); overflow-y:auto; overscroll-behavior:contain; padding:1rem; scrollbar-gutter:stable; }
.trajectory-controls label { display:grid; grid-template-columns:1fr auto; align-items:center; gap:.25rem .5rem; }
.trajectory-controls label > span { grid-column:1; grid-row:1; margin:0; }
.trajectory-controls input,.trajectory-controls select { grid-column:1/-1; }
.trajectory-controls input[type="range"] { padding-right:0; padding-left:0; }
.trajectory-controls output { grid-column:2; grid-row:1; color:var(--lime); font-size:.68rem; font-weight:800; text-align:right; }
.trajectory-controls .first-person-control { padding:.55rem; border-radius:.7rem; background:rgba(105,200,255,.07); }
@media (min-width:580px) { .trajectory-controls { grid-template-columns:repeat(3,minmax(0,1fr)); } }
@media (min-width:1000px) { .trajectory-plots { grid-template-columns:minmax(0,2fr) minmax(18rem,1fr); align-items:center; } .trajectory-fixed-plots { grid-template-columns:1fr; } }