.tutorial-page { margin: 0; min-width: 0; font-size: 15px; line-height: 1.6; }
.tutorial-page *, .tutorial-page *::before, .tutorial-page *::after { box-sizing: border-box; }
.tutorial-page [hidden] { display: none !important; }
.tutorial-page a { color: #b9e8d5; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.tutorial-page :is(button, a, [tabindex]):focus-visible { outline: 3px solid #e6c78d; outline-offset: 4px; }
.tutorial-page :is(h1, h2, h3, h4, p) { margin: 0; }
.tutorial-page h2 { font-size: clamp(23px, 3vw, 30px); line-height: 1.25; letter-spacing: -.025em; }
.tutorial-page h3 { font-size: 21px; line-height: 1.3; }
.tutorial-page kbd { display: inline-block; min-width: 25px; padding: 1px 5px; border: 1px solid #5a756b; border-bottom-width: 3px; border-radius: 5px; background: #132d26; color: #ecfdf5; font: 600 .85em/1.6 system-ui, sans-serif; text-align: center; }
.tutorial-header, .tutorial-main { width: calc(100% - clamp(24px, 4vw, 96px)); margin: auto; }
.tutorial-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid #416655; }
.tutorial-brand { color: #e6bb60 !important; font-size: 22px; font-weight: 850; letter-spacing: -.04em; text-decoration: none; line-height: 1.2; }
.tutorial-brand span { display: block; color: #b9cebf; font-size: 10px; font-weight: 600; letter-spacing: .13em; }
.tutorial-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; border: 1px solid #577c72; border-radius: 8px; padding: 9px 14px; background: #14372e; color: #e2f5ed !important; font: 650 13px/1.35 system-ui, sans-serif; text-decoration: none; cursor: pointer; }
.tutorial-button:hover { background: #224b3e; border-color: #9fbfb3; }
.tutorial-button:disabled { opacity: .7; cursor: default; }
.tutorial-button-primary { background: #254f60; border-color: #719ba7; }
.tutorial-skip { position: absolute; top: -100px; left: 12px; padding: 10px; background: #122e24; z-index: 10; }
.tutorial-skip:focus { top: 10px; }
.tutorial-intro { padding: 22px 0 16px; }
.tutorial-intro h1 { font-size: clamp(30px, 4vw, 40px); line-height: 1.08; font-weight: 800; letter-spacing: -.05em; }
.tutorial-intro > p { margin-top: 8px; max-width: 62ch; color: #c2d9cc; font-size: 15px; }
.tutorial-jumps { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-top: 8px; }
.tutorial-jumps a { display: inline-flex; align-items: center; min-height: 44px; font-size: 13px; }
.tutorial-panel { border: 1px solid var(--line); border-radius: 12px; background: var(--panel); padding: 18px; scroll-margin-top: 16px; }
.tutorial-section-heading { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.tutorial-tabs { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 6px; margin-bottom: 16px; }
.tutorial-tabs button { min-height: 44px; padding: 10px 6px; border: 1px solid #3a5c4c; border-radius: 7px; background: #10291f; color: #bcd2c6; font: 650 13px/1.3 system-ui, sans-serif; cursor: pointer; }
.tutorial-tabs button:hover { background: #22493a; }
.tutorial-tabs [aria-selected="true"] { border-color: #bbae7b; background: #384b38; color: #f3dfb3; }
.tutorial-lesson {
  --tutorial-cell: clamp(28px, min(calc((100vw - 420px) / 7), calc((100svh - 260px) / 13)), 112px);
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  grid-template-areas: 'demo keys' 'demo explanation';
  gap: clamp(16px, 2vw, 32px);
  align-items: start;
}
.tutorial-demo { min-width: 0; margin: 0; padding: 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--grid-bg); text-align: center; }
.tutorial-board-label { display: flex; justify-content: flex-start; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; padding-left: calc(var(--tutorial-cell) + 14px); font-size: clamp(11px, calc(var(--tutorial-cell) * .4), 20px); font-weight: 650; color: #b2c6b8; }
.tutorial-opponent .tutorial-board-label { padding-left: 4px; }
#tutorialBurnerBadge { color: #ffc28d; }
.tutorial-sprites { --cell: 26px; --sprite-inset: 1px; --sprite-step: calc(var(--cell) + 2px); --sheet-w: calc(var(--sprite-step) * 4); --sheet-h: calc(var(--sprite-step) * 6); }
.tutorial-board-frame, .tutorial-inventories { --cell: var(--tutorial-cell); }
.tutorial-board { width: calc(var(--cell) * 6 + 5px); height: calc(var(--cell) * 13 + 12px); overflow: hidden; }
.tutorial-cells { display: contents; }
.tutorial-piece { display: grid; grid-template-rows: repeat(3, var(--cell)); gap: 1px; position: absolute; top: 0; left: 0; width: var(--cell); transform: translate(calc(var(--piece-x) * (var(--cell) + 1px)), calc(var(--piece-y) * (var(--cell) + 1px))); transition: none; }
.tutorial-piece .cell { outline: 1px solid #c6d9bc; }
.tutorial-highlight { outline: 2px solid #edd59e; outline-offset: -2px; }
.tutorial-focus { outline: 2px solid #ef7777 !important; outline-offset: -2px; animation: tutorial-focus-pulse 1.5s ease-in-out infinite !important; }
@keyframes tutorial-focus-pulse {
  0%, 100% { box-shadow: inset 0 0 3px 1px #f15d5d55, 0 0 3px #f15d5d33; }
  50% { box-shadow: inset 0 0 9px 2px #f15d5d99, 0 0 8px #f15d5d77; }
}
@media (prefers-reduced-motion: reduce) { .tutorial-focus { animation: none !important; box-shadow: inset 0 0 5px #f15d5d77; } }
.tutorial-shift-example { max-width: 440px; margin: auto; }
.tutorial-shift-instruction { margin-bottom: 18px !important; color: #c5d9ce; text-align: center; }
.tutorial-shift-demo { min-width: 0; margin: 0; text-align: center; }
.tutorial-shift-demo figcaption { margin: 12px auto 0; color: #acc9ba; font-size: 12px; }
.tutorial-shift-board {
  --cell: clamp(38px, 4vw, 48px);
  display: grid;
  grid-template-columns: repeat(3, var(--cell));
  grid-template-rows: repeat(7, var(--cell));
  gap: 1px;
  position: relative;
  width: calc(var(--cell) * 3 + 2px);
  height: calc(var(--cell) * 7 + 6px);
  margin: auto;
  background: var(--line);
  outline: 1px solid #538b76;
  overflow: hidden;
}
.tutorial-shift-order { margin-top: 20px !important; color: #b9d1c3; }
.tutorial-shift-order strong { color: #ffe18b; white-space: nowrap; }
.tutorial-shift-caption { min-height: 3.6em; margin-top: 12px !important; padding: 12px 14px; border: 1px solid #537864; border-radius: 8px; background: #091f18; color: #f0f9f4; }
.tutorial-shift-playback { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 12px; }
#tutorialShiftKey.is-pressed { color: #12281d; background: #ffe18b; border-color: #ffe18b; animation: none; }
@media (max-width: 700px) {
  .tutorial-shift-board { --cell: 38px; }
}
.tutorial-effects { position: absolute; inset: -80px; pointer-events: none; overflow: clip; }
.tutorial-demo { overflow: clip; width: calc(var(--tutorial-cell) * 7 + 47px); max-width: 100%; }
.tutorial-match { display: flex; align-items: flex-start; }
.tutorial-player { width: calc(var(--tutorial-cell) * 7 + 21px); flex: none; }
.tutorial-playfield { display: grid; grid-template-columns: calc(var(--tutorial-cell) + 14px) max-content; gap: 0; align-items: stretch; }
.tutorial-opponent .tutorial-playfield { grid-template-columns: max-content calc(var(--tutorial-cell) + 14px); }
.tutorial-opponent .tutorial-inventories { grid-column: 2; grid-row: 1; }
.tutorial-opponent .tutorial-board-frame { grid-column: 1; grid-row: 1; }
.tutorial-inventories { display: flex; flex-direction: column; align-items: center; gap: 8px; min-height: 0; }
.tutorial-next { display: flex; flex-direction: column; align-items: center; }
.tutorial-next-label { font-size: 9px; line-height: 12px; color: #adc9ba; }
.tutorial-inventory { display: flex; flex: 1; flex-direction: column; align-items: center; width: 100%; padding: 6px; border: 1px solid var(--line); border-radius: 6px; background: rgba(255,255,255,.05); color: #adc9ba; }
.tutorial-inventory-queue { display: flex; flex-direction: column; gap: 1px; }
.tutorial-inventory-queue .cell:first-child { outline: 1px solid #e6d4ad; outline-offset: -1px; }
.tutorial-inventory-status { margin-top: 8px !important; color: #adc9ba; font-size: 12px; }
.tutorial-junk { --cell: 24px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 7px; margin-top: 14px; color: #adc9ba; font-size: 10px; }
:is(.tutorial-inventory, .tutorial-junk, .tutorial-icon) .cell { width: var(--cell); height: var(--cell); flex: 0 0 var(--cell); }
.tutorial-action-hint { min-height: 2.8em; margin: 10px auto 0; padding: 6px 8px; border-left: 3px solid #e6d4ad; border-radius: 3px; background: rgba(230, 212, 173, .08); color: #f0e2c2; font-size: 11px; font-weight: 650; line-height: 1.4; text-align: left; }
.tutorial-demo figcaption { min-height: 3em; margin: 10px auto 8px; max-width: 36ch; color: #c6dbcf; font-size: 12px; line-height: 1.5; }
.tutorial-playback { display: flex; justify-content: center; }
.tutorial-playback .tutorial-button { padding: 8px 10px; }
.tutorial-explanation { min-width: 0; max-width: 55ch; }
.tutorial-explanation h3 { margin-bottom: 8px; color: var(--text); }
.tutorial-key-guide { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); }
.tutorial-key-guide h4 { color: #e6d4ad; font-size: 14px; }
.tutorial-key-context { color: #adc6b7; font-size: 12px; margin-top: 2px !important; }
.tutorial-arrow-keys { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; width: min(100%, 300px); margin: 12px 0; }
.tutorial-key { display: flex; flex-direction: column; align-items: center; gap: 3px; color: #c5d9ce; font-size: 11px; text-align: center; }
.tutorial-key-cycle { grid-column: 2; grid-row: 1; }
.tutorial-key-left { grid-column: 1; grid-row: 2; }
.tutorial-key-drop { grid-column: 2; grid-row: 2; }
.tutorial-key-right { grid-column: 3; grid-row: 2; }
.tutorial-key kbd { display: grid; place-items: center; width: 44px; height: 40px; padding: 0; color: #e3f4ff; border-color: #608b94; background: #193d42; font-size: 23px; line-height: 1; }
.tutorial-space-key { display: flex; align-items: center; gap: 8px; color: #c5d9ce; font-size: 12px; }
.tutorial-key-details { display: inline-flex; align-items: center; min-height: 44px; font-size: 12px; }
#tutorialLessonText { color: #c5d9ce; }
.tutorial-powerups { padding: 24px 0; scroll-margin-top: 16px; }
.tutorial-section-lead { max-width: 76ch; color: #c1d5c8; margin: -6px 0 22px !important; }
.tutorial-power-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.tutorial-power-group { min-width: 0; overflow: hidden; border: 1px solid #42685d; border-radius: 14px; background: #102e25; }
.tutorial-power-group header { padding: 16px; background: #1b3b36; border-bottom: 1px solid #42685d; }
.tutorial-power-group header p { margin-top: 10px; font-size: 13px; color: #c4dbcf; }
.tutorial-offensive header { background: #373e2c; }
.tutorial-power-list { list-style: none; padding: 0 16px; margin: 0; }
.tutorial-power-list li { display: flex; align-items: center; gap: 12px; padding: 14px 0; }
.tutorial-power-list li + li { border-top: 1px solid #314e40; }
.tutorial-icon { --cell: 38px; flex: 0 0 var(--cell); }
.tutorial-icon .cell { display: block; }
.tutorial-power-list h4 { color: #e0eee4; font-size: 14px; font-weight: 650; }
.tutorial-power-list small { font-size: 10px; font-weight: 500; color: #acc1b5; white-space: nowrap; }
.tutorial-power-list p { color: #b4ccbd; font-size: 12px; margin-top: 5px; line-height: 1.55; }
.tutorial-specials { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 18px; color: #c0d3c5; font-size: 12px; }
.tutorial-specials strong { color: #e6d4ad; }
.tutorial-control-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px; }
.tutorial-muted { color: #adc6b7; font-size: 12px; margin-top: 8px !important; }
.tutorial-controls { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 12px; }
.tutorial-controls th, .tutorial-controls td { padding: 12px 6px; border-bottom: 1px solid #355448; text-align: left; }
.tutorial-controls thead th { color: #a6c2b0; font-weight: 500; font-size: 11px; }
.tutorial-controls tbody th { color: #d0e4d7; font-weight: 500; }
.tutorial-first-game { color: #b9d0c1; font-size: 13px; }
.tutorial-first-game h3 { color: #e5eee7; }
.tutorial-first-game p { margin-top: 12px; }
.tutorial-first-game ol { padding-left: 20px; }
.tutorial-first-game li { padding-left: 3px; margin-top: 10px; }
.tutorial-first-game .tutorial-button { margin-top: 20px; }
.tutorial-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 24px 0 40px; color: #9dbba8; font-size: 11px; }
.tutorial-footer a { display: inline-flex; align-items: center; min-height: 44px; }
.tutorial-motion-paused *, .tutorial-motion-paused *::before, .tutorial-motion-paused *::after,
.tutorial-motion-rest *, .tutorial-motion-rest *::before, .tutorial-motion-rest *::after { animation-play-state: paused !important; }
.tutorial-motion-paused .tutorial-piece, .tutorial-motion-paused .tutorial-cells { transition: none; }
@media (max-width: 700px) {
  .tutorial-panel { padding: 16px; }
  .tutorial-lesson {
    --tutorial-cell: clamp(24px, calc((100vw - 120px) / 7), 56px);
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto;
    grid-template-areas: 'demo' 'keys' 'explanation';
    gap: 20px;
  }
  .tutorial-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tutorial-demo { justify-self: center; }
  .tutorial-lesson > .tutorial-key-guide, .tutorial-lesson > .tutorial-explanation { width: 100%; justify-self: center; }
  .tutorial-arrow-keys { margin-inline: auto; }
  .tutorial-power-columns, .tutorial-control-columns { grid-template-columns: 1fr; gap: 20px; }
  .tutorial-power-list li { min-height: 0; }
}
@media (max-width: 420px) {
  .tutorial-header, .tutorial-main { width: calc(100% - 24px); }
  .tutorial-header { padding: 16px 0; gap: 10px; }
  .tutorial-brand { font-size: 19px; }
  .tutorial-header .tutorial-button { padding-inline: 10px; font-size: 12px; }
  .tutorial-intro { padding: 18px 0 14px; }
  .tutorial-panel { padding: 16px 12px; }
  .tutorial-section-heading { align-items: flex-start; flex-direction: column; }
  .tutorial-tabs button { font-size: 12px; }
  .tutorial-tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tutorial-specials { grid-template-columns: 1fr; gap: 12px; }
  .tutorial-power-group header { padding: 20px; }
  .tutorial-power-list { padding: 0 18px; }
  .tutorial-icon { --cell: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  .tutorial-page *, .tutorial-page *::before, .tutorial-page *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* The board defines the central track; supporting content reflows around it. */
.tutorial-lesson > .tutorial-demo { grid-area: demo; }
.tutorial-lesson > .tutorial-key-guide { grid-area: keys; margin: 0; padding: 0; border: 0; min-width: 0; }
.tutorial-lesson > .tutorial-explanation { grid-area: explanation; }
@media (min-width: 1100px) {
  .tutorial-lesson { grid-template-columns: minmax(0, 1fr) max-content minmax(0, 1fr); grid-template-rows: auto; grid-template-areas: 'keys demo explanation'; }
  .tutorial-lesson > .tutorial-key-guide { width: min(100%, 360px); justify-self: end; }
}
.tutorial-playback { flex-wrap: wrap; gap: 6px; }
.tutorial-page kbd.is-pressed {
  color: #10291f;
  background: #f7d783;
  border-color: #fff0bd;
  box-shadow: 0 0 12px #f7d78366;
  animation: tutorial-key-press 500ms ease-out;
}
@keyframes tutorial-key-press {
  0% { transform: translateY(0); }
  40% { transform: translateY(3px); }
  100% { transform: translateY(1px); }
}
.tutorial-lesson.has-opponent {
  --tutorial-cell: clamp(14px, min(calc((100vw - 140px) / 14), calc((100svh - 260px) / 13)), 84px);
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: auto auto;
  grid-template-areas: 'demo demo' 'keys explanation';
}
.tutorial-lesson.has-opponent > .tutorial-demo { width: calc(var(--tutorial-cell) * 14 + 68px); justify-self: center; }
.tutorial-lesson.has-opponent .tutorial-board-label { min-height: calc(3.2em + 8px); align-content: flex-start; }
.tutorial-lesson.has-opponent > .tutorial-key-guide { justify-self: center; }
@media (max-width: 700px) {
  .tutorial-lesson.has-opponent {
    --tutorial-cell: clamp(14px, calc((100vw - 140px) / 14), 40px);
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: 'demo' 'keys' 'explanation';
  }
}
.tutorial-power-picker { display: grid; gap: 8px; margin-top: 16px; }
.tutorial-power-picker fieldset { min-width: 0; padding: 8px; margin: 0; border: 1px solid var(--line); border-radius: 8px; }
.tutorial-power-picker legend { padding: 0 5px; font-size: 12px; color: #c5d9ce; }
.tutorial-power-picker fieldset > div { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.tutorial-power-picker button { min-height: 44px; padding: 6px; border: 1px solid #577c72; border-radius: 6px; background: #14372e; color: #e2f5ed; font: inherit; font-size: 12px; cursor: pointer; }
.tutorial-power-picker button[aria-pressed="true"] { border-color: #f7d783; background: #384b38; color: #f7d783; }
/* Show the stored power's sprite without idle rotation, arcs or inventory pulses. */
.tutorial-page .cell:is([data-var="off"], [data-var="def"]) { animation: none; filter: var(--cell-filter, none); }
.tutorial-page .cell:is([data-var="off"], [data-var="def"])::before,
.tutorial-page .cell:is([data-var="off"], [data-var="def"])::after { content: none; }
@media (max-width: 700px) {
  .tutorial-space-key { flex-wrap: wrap; }
  .tutorial-power-picker fieldset > div { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
  #tutorialPause { display: none; }
}