:root {
  color-scheme: light;
  --cream: #f7eeda;
  --cream-light: #faf3df;
  --paper: #f1e6d0;
  --paper-sunk: #e8dcc2;
  --oak: #2a1f17;
  --ink: #3b2e22;
  --spirit: #b46a2a;
  --copper: #9c4e20;
  --gold: #d39a3d;
  --ember: #6e2f14;
  --moss: #4f6247;
  --rust: #9a4a2b;
  --stone: #7f7262;
  --rule: #d3c3a2;
  font-family: "Instrument Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--oak);
  background: var(--cream);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(rgba(156, 78, 32, 0.025) 1px, transparent 1px),
    var(--cream);
  background-size: 100% 40px;
  animation: room-page-in 300ms cubic-bezier(.2,.72,.2,1) both;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.copper-shell {
  width: min(100%, 720px);
  min-height: 100vh;
  margin: 0 auto;
  padding: max(22px, env(safe-area-inset-top)) 22px max(24px, env(safe-area-inset-bottom));
}

.site-header,
.game-heading,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--rule);
}

.stillbound-wordmark {
  color: var(--oak);
  font: 400 29px/1 "Newsreader", Georgia, serif;
  letter-spacing: -1.1px;
  text-decoration: none;
}

.stillbound-wordmark span {
  color: var(--copper);
  font-style: italic;
}

.stillbound-monogram {
  display: block;
  width: 35px;
  height: 35px;
  text-decoration: none;
}

.stillbound-monogram svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.stillbound-monogram text {
  fill: var(--copper);
  font-family: "Newsreader", "Iowan Old Style", Georgia, serif;
  font-size: 84px;
  font-weight: 400;
  letter-spacing: -3px;
}

.stillbound-monogram tspan {
  fill: var(--gold);
  font-style: italic;
  font-weight: 300;
}

.game-heading {
  align-items: end;
  gap: 18px;
  padding: 30px 0 22px;
}

.eyebrow,
.status-strip span,
footer {
  margin: 0;
  color: var(--copper);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1.8px;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: "Newsreader", Georgia, serif;
  font-weight: 400;
}

h1 {
  margin-top: 4px;
  font-size: clamp(50px, 11vw, 76px);
  line-height: 0.91;
  letter-spacing: -3px;
}

h1 em,
h2 em {
  color: var(--copper);
  font-weight: 400;
}

h1 em {
  white-space: nowrap;
}

.new-shift,
.shift-result button {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0 17px;
  border: 1px solid var(--copper);
  border-radius: 7px;
  color: var(--copper);
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition:
    color 150ms ease,
    background-color 150ms ease,
    box-shadow 150ms ease,
    transform 150ms ease;
}

.new-shift:hover,
.shift-result button:hover {
  color: var(--cream-light);
  background: var(--copper);
  box-shadow: 0 5px 14px rgba(156, 78, 32, 0.18);
}

.new-shift:focus-visible,
.shift-result button:focus-visible,
.match-cell:focus-visible,
.stillbound-wordmark:focus-visible,
.stillbound-monogram:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.shift-order {
  display: grid;
  grid-template-columns: minmax(180px, 0.72fr) minmax(320px, 1.28fr);
  gap: 16px;
  padding: 17px;
  border: 1px solid var(--rule);
  border-left: 4px solid var(--copper);
  border-radius: 10px;
  background: rgba(250, 243, 223, 0.62);
}

.order-intro h2 {
  margin-top: 5px;
  font-size: 30px;
  line-height: 1;
}

.order-intro > p:last-child {
  max-width: 220px;
  margin: 8px 0 0;
  color: var(--stone);
  font-size: 12px;
  line-height: 1.4;
}

.order-intro > p strong {
  color: var(--oak);
  font-weight: 600;
}

.order-targets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.order-target {
  --target-color: var(--copper);
  position: relative;
  display: grid;
  min-width: 0;
  min-height: 76px;
  grid-template-columns: 35px 1fr;
  gap: 7px;
  align-items: center;
  padding: 9px;
  overflow: hidden;
  border: 1px solid rgba(127, 114, 98, 0.23);
  border-radius: 7px;
  background: rgba(241, 230, 208, 0.56);
}

.target-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  color: var(--target-color);
  background: color-mix(in srgb, var(--target-color) 13%, var(--cream-light));
}

.target-icon img {
  width: 31px;
  height: 31px;
  object-fit: contain;
}

.target-copy b,
.target-copy small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.target-copy b {
  color: var(--ink);
  font-size: 10px;
  font-weight: 600;
  text-transform: capitalize;
}

.target-copy small {
  margin-top: 3px;
  color: var(--stone);
  font-family: "JetBrains Mono", monospace;
  font-size: 8px;
}

.order-target > i {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--target-color) var(--progress), color-mix(in srgb, var(--target-color) 9%, transparent) var(--progress));
  transition: background 220ms ease;
}

.target-water { --target-color: var(--stone); }
.target-heat { --target-color: var(--rust); }
.target-coil { --target-color: var(--moss); }

.order-target.is-complete {
  border-color: rgba(79, 98, 71, 0.5);
  background: rgba(79, 98, 71, 0.07);
}

.order-target.is-complete .target-icon {
  color: var(--moss);
  background: rgba(79, 98, 71, 0.12);
}

.status-strip {
  display: grid;
  grid-template-columns: 80px 80px 80px 1fr;
  gap: 7px;
  margin: 10px 0;
}

.status-strip > div {
  min-width: 0;
  min-height: 57px;
  padding: 9px 11px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: rgba(250, 243, 223, 0.52);
}

.status-strip span,
.status-strip strong {
  display: block;
}

.status-strip strong {
  margin-top: 4px;
  overflow: hidden;
  color: var(--oak);
  font-size: 19px;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-strip .house-note strong {
  color: var(--ink);
  font: italic 14px/1.1 "Newsreader", Georgia, serif;
}

.copper-floor {
  position: relative;
}

.flow-bonus {
  position: absolute;
  z-index: 8;
  top: 16px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 13px;
  border: 1px solid var(--gold);
  border-radius: 7px;
  color: var(--cream-light);
  background: var(--oak);
  box-shadow: 0 12px 28px rgba(42, 31, 23, 0.25);
  transform: translateX(-50%);
  animation: full-flow-in 260ms cubic-bezier(0.2, 0.8, 0.25, 1.15) both;
  pointer-events: none;
}

.flow-bonus[hidden] {
  display: none;
}

.flow-bonus span {
  color: var(--gold);
  font-family: "JetBrains Mono", monospace;
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 1.5px;
}

.flow-bonus strong {
  font: italic 15px/1 "Newsreader", Georgia, serif;
  white-space: nowrap;
}

@keyframes full-flow-in {
  from { opacity: 0; transform: translate(-50%, -8px) scale(0.96); }
  to { opacity: 1; transform: translate(-50%, 0) scale(1); }
}

.match-board {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  width: 100%;
  aspect-ratio: 1;
  padding: 9px;
  border: 2px solid color-mix(in srgb, var(--copper) 58%, var(--rule));
  border-radius: 14px;
  background:
    linear-gradient(rgba(42, 31, 23, 0.075) 1px, transparent 1px),
    color-mix(in srgb, var(--spirit) 24%, var(--paper-sunk));
  background-size: 100% calc((100% - 18px) / 7);
  box-shadow: 0 18px 38px rgba(42, 31, 23, 0.11);
  touch-action: none;
  user-select: none;
}

.match-cell {
  position: relative;
  display: grid;
  min-width: 0;
  aspect-ratio: 1;
  padding: 0;
  place-items: center;
  overflow: visible;
  border: 1px solid rgba(42, 31, 23, 0.1);
  border-radius: 8px;
  background: rgba(250, 243, 223, 0.31);
  cursor: pointer;
}

.match-cell::after {
  position: absolute;
  border: 1px solid var(--gold);
  border-radius: inherit;
  content: "";
  inset: -2px;
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 120ms ease, transform 120ms ease;
}

.match-cell.is-selected::after {
  opacity: 1;
  transform: scale(1);
}

.match-cell.is-selected .piece {
  box-shadow:
    0 0 0 3px var(--gold),
    0 8px 15px rgba(42, 31, 23, 0.24),
    inset 0 0 0 2px rgba(250, 243, 223, 0.18);
  transform: translateY(-2px) scale(1.04);
}

.piece {
  --piece-color: var(--copper);
  --piece-ink: var(--cream-light);
  position: relative;
  z-index: 1;
  display: grid;
  width: 94%;
  aspect-ratio: 1;
  place-items: center;
  border: 0;
  border-radius: 20%;
  color: var(--piece-ink);
  background: transparent;
  box-shadow: none;
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.piece > img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 4px rgba(42, 31, 23, 0.23));
}

.piece-special {
  isolation: isolate;
  border: 2px solid var(--gold);
  box-shadow:
    inset 0 0 0 2px rgba(250, 243, 223, 0.25),
    0 0 0 2px color-mix(in srgb, var(--gold) 70%, transparent),
    0 5px 11px rgba(42, 31, 23, 0.25);
}

.piece-special::before,
.piece-special::after {
  position: absolute;
  z-index: -1;
  border-radius: 999px;
  background: var(--cream-light);
  box-shadow: 0 0 9px rgba(250, 243, 223, 0.65);
  content: "";
}

.special-pipe-row::before {
  width: 112%;
  height: 6px;
}

.special-pipe-column::before {
  width: 6px;
  height: 112%;
}

.special-pressure::before,
.special-pressure::after {
  width: 68%;
  height: 68%;
  border: 2px solid var(--cream-light);
  background: transparent;
  box-shadow: 0 0 10px rgba(250, 243, 223, 0.45);
}

.special-pressure::after {
  width: 88%;
  height: 88%;
  border-color: var(--gold);
}

.special-full-flow {
  border-radius: 50%;
  background:
    repeating-conic-gradient(from 4deg, rgba(250, 243, 223, 0.2) 0 8deg, transparent 8deg 20deg),
    radial-gradient(circle, color-mix(in srgb, var(--piece-color) 92%, var(--oak)), var(--oak));
}

.special-full-flow::before {
  width: 72%;
  height: 72%;
  border: 1px dashed var(--gold);
  background: transparent;
  box-shadow: none;
}

.special-mark {
  position: absolute;
  z-index: 2;
  right: -5px;
  bottom: -5px;
  display: grid;
  min-width: 20px;
  height: 20px;
  padding: 0 4px;
  place-items: center;
  border: 1px solid var(--gold);
  border-radius: 999px;
  color: var(--oak);
  background: var(--cream-light);
  box-shadow: 0 2px 5px rgba(42, 31, 23, 0.22);
  font: 600 6px/1 "JetBrains Mono", monospace;
  letter-spacing: 0.4px;
}

.piece-barley { --piece-color: var(--gold); --piece-ink: var(--oak); }
.piece-water { --piece-color: var(--stone); }
.piece-heat { --piece-color: var(--rust); }
.piece-copper { --piece-color: var(--copper); }
.piece-coil { --piece-color: var(--moss); }
.piece-receiver { --piece-color: var(--ember); }

.piece-new {
  animation: piece-in 190ms cubic-bezier(0.2, 0.8, 0.25, 1.15) both;
}

.piece-charged {
  animation: piece-charged 520ms cubic-bezier(.18,.82,.2,1.12) both;
}

.match-cell.is-clearing .piece {
  animation: piece-clear 170ms ease-in both;
}

.match-cell.is-power-clearing::after {
  opacity: 1;
  transform: scale(1.08);
}

.match-cell.is-power-clearing .piece {
  filter: brightness(1.22) saturate(1.12);
}

.match-cell.invalid-swap {
  animation: invalid 170ms ease-out both;
}

@keyframes piece-in {
  from { opacity: 0; transform: translateY(-35%) scale(0.82); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes piece-clear {
  0% { opacity: 1; transform: scale(1); }
  55% { opacity: 1; transform: scale(1.12); }
  100% { opacity: 0; transform: scale(0.7); }
}

@keyframes piece-charged {
  0% { filter: brightness(1); transform: scale(.82) rotate(-2deg); }
  38% { filter: brightness(1.35) saturate(1.18); transform: scale(1.16) rotate(1deg); }
  68% { filter: brightness(1.08); transform: scale(.97) rotate(0); }
  100% { filter: brightness(1); transform: scale(1); }
}

@keyframes invalid {
  0%, 100% { transform: translateX(0); }
  35% { transform: translateX(-3px); }
  70% { transform: translateX(3px); }
}

.shift-result {
  position: absolute;
  z-index: 10;
  display: grid;
  place-content: center;
  inset: 0;
  padding: 28px;
  border-radius: 14px;
  background: rgba(247, 238, 218, 0.96);
  text-align: center;
  animation: result-in 240ms cubic-bezier(0.2, 0.75, 0.3, 1) both;
}

.shift-result[hidden] {
  display: none;
}

.shift-result h2 {
  max-width: 360px;
  margin: 7px auto 0;
  font-size: clamp(36px, 7vw, 52px);
  line-height: 0.95;
  letter-spacing: -1.7px;
}

.shift-result > p:not(.eyebrow) {
  margin: 13px auto 22px;
  color: var(--stone);
  font-size: 14px;
}

.shift-result button {
  justify-self: center;
}

@keyframes result-in {
  from { opacity: 0; backdrop-filter: blur(0); }
  to { opacity: 1; backdrop-filter: blur(2px); }
}

.piece-key {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 5px;
  padding: 13px 0 17px;
  border-bottom: 1px solid var(--rule);
}

.piece-key > span {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 4px;
  color: var(--key-color, var(--stone));
}

.piece-key img {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  object-fit: contain;
}

.piece-key .key-barley { --key-color: #8c691d; }
.piece-key .key-water { --key-color: var(--stone); }
.piece-key .key-heat { --key-color: var(--rust); }
.piece-key .key-copper { --key-color: var(--copper); }
.piece-key .key-coil { --key-color: var(--moss); }
.piece-key .key-receiver { --key-color: var(--ember); }

.piece-key b {
  overflow: hidden;
  font-size: 8px;
  font-weight: 600;
  text-overflow: ellipsis;
  text-transform: lowercase;
  white-space: nowrap;
}

.power-guide {
  display: grid;
  grid-template-columns: 1.05fr repeat(3, 1fr);
  gap: 8px;
  align-items: stretch;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.power-guide > div:first-child {
  align-self: center;
  padding-right: 8px;
}

.power-guide h2 {
  margin-top: 4px;
  font-size: 21px;
  line-height: 1;
}

.power-rule {
  display: grid;
  min-width: 0;
  grid-template-columns: 31px 1fr;
  gap: 7px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: rgba(250, 243, 223, 0.5);
}

.power-rule > span {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid var(--power-color, var(--copper));
  border-radius: 50%;
  color: var(--cream-light);
  background: var(--power-color, var(--copper));
  font: 600 12px/1 "JetBrains Mono", monospace;
}

.power-rule p,
.power-rule strong,
.power-rule small {
  display: block;
  min-width: 0;
  margin: 0;
}

.power-rule strong {
  color: var(--oak);
  font-size: 9px;
}

.power-rule small {
  margin-top: 2px;
  color: var(--stone);
  font-size: 7px;
  line-height: 1.25;
}

.power-rule-pipe { --power-color: var(--copper); }
.power-rule-flow { --power-color: var(--ember); }
.power-rule-charge { --power-color: var(--moss); }

.power-combo {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--stone);
  font-size: 9px;
  text-align: right;
}

.power-combo strong {
  color: var(--copper);
}

footer {
  gap: 20px;
  padding-top: 16px;
  color: var(--stone);
  font-size: 8px;
  letter-spacing: 1.4px;
}

footer a {
  color: var(--copper);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 620px) {
  .copper-shell {
    padding-right: 13px;
    padding-left: 13px;
  }

  .game-heading {
    padding-top: 25px;
  }

  h1 {
    font-size: clamp(47px, 15vw, 65px);
  }

  .shift-order {
    grid-template-columns: 1fr;
  }

  .order-intro {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .order-intro .eyebrow {
    grid-column: 1 / -1;
  }

  .order-intro > p:last-child {
    max-width: 160px;
    margin: 0;
    text-align: right;
  }

  .status-strip {
    grid-template-columns: 64px 64px 64px 1fr;
  }

  .status-strip > div {
    padding: 8px;
  }

  .status-strip .house-note strong {
    font-size: 12px;
  }

  .match-board {
    gap: 4px;
    padding: 6px;
  }

  .match-cell {
    border-radius: 6px;
  }

  .piece {
    width: 84%;
  }

  .piece-key {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 8px;
  }

  .power-guide {
    grid-template-columns: repeat(3, 1fr);
  }

  .power-guide > div:first-child,
  .power-combo {
    grid-column: 1 / -1;
  }

  .power-guide > div:first-child {
    padding: 0 0 4px;
  }
}

@media (max-width: 390px) {
  .new-shift {
    min-height: 40px;
    padding: 0 12px;
    font-size: 12px;
  }

  .order-targets {
    gap: 4px;
  }

  .order-target {
    min-height: 66px;
    grid-template-columns: 27px 1fr;
    padding: 6px;
  }

  .target-icon {
    width: 27px;
    height: 27px;
  }

  .target-icon img {
    width: 19px;
    height: 19px;
  }

  .house-note {
    display: none;
  }

  .status-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .power-rule {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }
}

@media (min-width: 800px) {
  body {
    padding: 30px;
  }

  .copper-shell {
    min-height: calc(100vh - 60px);
    border: 1px solid var(--rule);
    background: rgba(247, 238, 218, 0.93);
    box-shadow: 0 24px 70px rgba(42, 31, 23, 0.11);
  }
}

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

@keyframes room-page-in {
  from { opacity: 0; transform: translateY(8px) scale(.995); }
}

.room-back { color: inherit; text-decoration: none; }
.room-back:hover { text-decoration: underline; }

/* ---- Fit on screen (12 Sep 2026): the board is never below the fold ---- */
.game-heading { padding: 12px 0 10px; }
h1 { font-size: clamp(38px, 8vw, 50px); }
.shift-order { padding: 10px 12px; gap: 10px; }
.order-intro h2 { font-size: 22px; }
.order-target { min-height: 58px; padding: 6px 8px; }
.status-strip { margin: 8px 0; }
.status-strip > div { min-height: 48px; padding: 7px 10px; }
.piece-key { padding: 10px 0 12px; }
.copper-floor {
  --chrome: 330px;
  width: min(100%, calc(100dvh - var(--chrome)));
  margin: 0 auto;
}
@media (max-width: 620px) {
  .game-heading { padding-top: 8px; }
  h1 { font-size: clamp(36px, 11vw, 46px); }
  .shift-order { padding: 8px 10px; }
  .order-intro { grid-template-columns: 1fr; }
  .order-intro > p:last-child { max-width: none; font-size: 12px; line-height: 1.3; }
  .order-target { min-height: 50px; }
  .copper-floor { --chrome: 300px; }
}
/* Desktop: board left, order + status + key in a rail on the right, everything on one screen */
@media (min-width: 800px) {
  .copper-shell {
    width: min(100%, 1120px);
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    grid-template-rows: auto auto auto auto 1fr auto auto;
    grid-template-areas:
      "header header"
      "floor heading"
      "floor order"
      "floor status"
      "floor key"
      "guide guide"
      "footer footer";
    column-gap: 28px;
    align-content: start;
  }
  .copper-shell > .site-header { grid-area: header; }
  .copper-shell > .game-heading { grid-area: heading; padding-top: 18px; }
  .copper-shell > .shift-order { grid-area: order; grid-template-columns: 1fr; }
  .copper-shell > .status-strip { grid-area: status; grid-template-columns: 1fr 1fr 1fr; }
  .copper-shell > .status-strip > .house-note { grid-column: 1 / -1; }
  .copper-shell > .copper-floor { grid-area: floor; --chrome: 170px; align-self: start; margin-top: 18px; }
  .copper-shell > .piece-key { grid-area: key; grid-template-columns: repeat(3, 1fr); align-self: start; }
  .copper-shell > .power-guide { grid-area: guide; }
  .copper-shell > footer { grid-area: footer; }
}