:root {
  color-scheme: dark;
  --bg: #050711;
  --panel: rgba(13, 17, 34, 0.94);
  --panel-soft: #11162b;
  --line: #29325d;
  --text: #f4f6ff;
  --muted: #9ba5cb;
  --yellow: #ffe600;
  --blue: #3658ff;
  --cyan: #2de2e6;
  --pink: #ff70c9;
  --red: #ff5263;
  --cell-size: clamp(26px, 3.25vw, 43px);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  padding-bottom: 118px;
  color: var(--text);
  background: radial-gradient(circle at 50% -15%, rgba(54, 88, 255, 0.23), transparent 38rem),
    radial-gradient(circle at 90% 35%, rgba(255, 112, 201, 0.08), transparent 30rem), var(--bg);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: '';
  background-image: linear-gradient(rgba(55, 70, 130, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(55, 70, 130, 0.055) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 90%);
}

button,
input,
select {
  font: inherit;
}

button,
select,
input {
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #151b35;
}

button {
  min-height: 40px;
  padding: 0.55rem 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 150ms ease, background 150ms ease, transform 150ms ease;
}

button:hover:not(:disabled) {
  border-color: #5263b0;
  background: #20294e;
}

button:active:not(:disabled) {
  transform: translateY(1px);
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.level-grid:focus-visible {
  outline: 3px solid rgba(45, 226, 230, 0.85);
  outline-offset: 2px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
}

.app-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  max-width: 1580px;
  margin: 0 auto;
  padding: 2rem clamp(1rem, 3vw, 3rem) 1.4rem clamp(7rem, 10vw, 9rem);
  border-bottom: 1px solid rgba(72, 88, 158, 0.35);
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--cyan);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.19em;
}

h1 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.65rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

h1 span {
  display: inline-block;
  color: var(--yellow);
  text-shadow: 0 0 18px rgba(255, 230, 0, 0.45);
}

.subtitle {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-button {
  width: 42px;
  padding: 0;
  font-size: 1.35rem;
}

.mode-switch {
  display: flex;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(8, 11, 24, 0.8);
}

.mode-button {
  min-width: 84px;
  border: 0;
  background: transparent;
}

.mode-button.active {
  color: var(--text);
  background: #283154;
  opacity: 1;
}

.play-mode-button {
  color: #161300;
  background: var(--yellow);
  box-shadow: 0 0 22px rgba(255, 230, 0, 0.16);
}

.play-mode-button:hover:not(:disabled) {
  background: #fff175;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(220px, 270px) minmax(360px, 1fr) minmax(220px, 290px);
  gap: 1rem;
  width: min(1580px, 100%);
  margin: 0 auto;
  padding: 1rem clamp(1rem, 3vw, 3rem) 3rem;
}

.panel,
.editor-column {
  min-width: 0;
}

.panel {
  align-self: start;
  overflow: hidden;
  border: 1px solid rgba(63, 76, 137, 0.63);
  border-radius: 15px;
  background: var(--panel);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(14px);
}

.panel section {
  padding: 1rem;
}

.panel section + section {
  border-top: 1px solid rgba(63, 76, 137, 0.47);
}

h2 {
  margin: 0 0 0.8rem;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.section-heading h2 {
  margin: 0;
}

.section-heading > span {
  color: var(--muted);
  font-size: 0.76rem;
}

.palette {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem;
}

.tile-button {
  display: flex;
  align-items: center;
  min-width: 0;
  min-height: 45px;
  padding: 0.42rem 0.5rem;
  color: #d9def4;
  font-size: 0.72rem;
  font-weight: 650;
  text-align: left;
}

.tool-dock {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(170px, 230px) minmax(0, 1fr);
  gap: 1rem;
  align-items: center;
  min-height: 102px;
  padding: 0.75rem clamp(1rem, 3vw, 3rem);
  border-top: 1px solid #3e4b8b;
  background: rgba(8, 11, 24, 0.97);
  box-shadow: 0 -16px 45px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(18px);
}

.dock-heading {
  min-width: 0;
}

.dock-heading > div {
  display: grid;
  gap: 0.2rem;
}

.dock-kicker {
  color: var(--cyan);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.dock-heading strong {
  overflow: hidden;
  font-size: 0.9rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dock-hint {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.68rem;
}

.tool-dock .palette {
  grid-template-columns: repeat(8, minmax(82px, 1fr));
}

.tool-dock .tile-button {
  flex-direction: column;
  justify-content: center;
  min-height: 72px;
  text-align: center;
}

.tool-dock .tile-swatch {
  width: 27px;
  height: 27px;
  margin: 0 0 0.3rem;
}

.playtest-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  grid-template-rows: auto 1fr;
  background: #050711;
}

.playtest-overlay[hidden] {
  display: none;
}

.playtest-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
  min-height: 58px;
  padding: 0.55rem 1rem;
  border-bottom: 1px solid #38447e;
  background: #0d1122;
}

.playtest-bar > div {
  display: flex;
  gap: 0.55rem;
  align-items: baseline;
}

.playtest-bar strong {
  color: var(--yellow);
  letter-spacing: 0.12em;
}

.playtest-bar span {
  color: var(--muted);
  font-size: 0.75rem;
}

.playtest-bar button:last-child {
  justify-self: end;
}

.back-to-build {
  justify-self: start;
  color: #161300;
  border-color: var(--yellow);
  background: var(--yellow);
}

.playtest-overlay iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: #050711;
}

body.playtesting {
  overflow: hidden;
}

body.playtesting .related-projects-container,
body.playtesting .heyming-nav-toggle {
  display: none !important;
}

.related-projects-container {
  bottom: 122px !important;
}

.tile-button[aria-pressed='true'] {
  color: white;
  border-color: var(--cyan);
  background: #202d4f;
  box-shadow: inset 0 0 0 1px rgba(45, 226, 230, 0.25);
}

.tile-swatch {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-right: 0.42rem;
  border: 1px solid #556;
  border-radius: 6px;
  background: #05050b;
}

.tile-swatch[data-tile='1'] {
  background: radial-gradient(circle, #ffe5ae 0 2px, #17192a 3px);
}

.tile-swatch[data-tile='2'] {
  border: 2px solid #4262ff;
  background: #111633;
}

.tile-swatch[data-tile='3'] {
  background: repeating-linear-gradient(45deg, #521c38 0 4px, #ff70c9 4px 6px);
}

.tile-swatch[data-tile='4'] {
  border-color: var(--cyan);
  background: radial-gradient(circle, transparent 25%, var(--cyan) 28% 39%, transparent 42%);
}

.tile-swatch[data-tile='5'] {
  background: radial-gradient(circle, #fff 0 5px, #2e2338 6px);
}

.tile-swatch[data-tile='6'] {
  border-color: var(--yellow);
  border-radius: 50%;
  background: var(--yellow);
}

.tile-swatch[data-tile='7'] {
  background: radial-gradient(circle at 40% 62%, #ff354d 0 5px, transparent 6px),
    radial-gradient(circle at 68% 62%, #ff354d 0 5px, transparent 6px), #17192a;
}

.hint,
.privacy-note {
  margin: 0.65rem 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.privacy-note {
  padding-right: 4rem;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
}

.template-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.45rem;
  align-items: end;
}

.template-row select {
  margin-top: 0.28rem;
}

.template-row button {
  min-width: 62px;
}

label {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 38px;
  margin-top: 0.28rem;
  padding: 0 0.55rem;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 0.7fr 0.7fr;
  gap: 0.4rem;
  margin-top: 0.65rem;
}

.button-row button {
  padding-inline: 0.35rem;
  font-size: 0.7rem;
}

.small-button {
  min-height: 29px;
  padding: 0.2rem 0.55rem;
  font-size: 0.68rem;
}

.teleport-groups {
  display: grid;
  gap: 0.38rem;
  margin-top: 0.75rem;
}

.teleport-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 37px;
  padding: 0.4rem 0.55rem;
  font-size: 0.72rem;
}

.teleport-group[aria-pressed='true'] {
  border-color: var(--cyan);
  background: rgba(45, 226, 230, 0.12);
}

.teleport-group b {
  color: var(--cyan);
}

.teleport-controls {
  margin-top: 0.65rem;
}

.teleport-controls label {
  display: block;
}

.danger-button {
  width: 100%;
  min-height: 35px;
  margin-top: 0.5rem;
  color: #ffb0b8;
  border-color: rgba(255, 82, 99, 0.45);
  font-size: 0.7rem;
}

.editor-column {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.grid-toolbar,
.legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.grid-toolbar {
  min-height: 44px;
  padding: 0 0.25rem;
}

.grid-toolbar strong {
  margin-right: 0.65rem;
  color: white;
}

.grid-shell {
  display: grid;
  flex: 1;
  min-height: 420px;
  overflow: auto;
  place-items: center;
  padding: clamp(0.65rem, 2vw, 1.4rem);
  border: 1px solid rgba(63, 76, 137, 0.63);
  border-radius: 15px;
  background: radial-gradient(circle, rgba(29, 43, 98, 0.55), transparent 70%), rgba(3, 5, 13, 0.92);
  box-shadow: inset 0 0 65px rgba(0, 0, 0, 0.72), 0 18px 55px rgba(0, 0, 0, 0.2);
  scrollbar-color: #38447e #0b0e1c;
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(var(--columns), var(--cell-size));
  grid-template-rows: repeat(var(--rows), var(--cell-size));
  gap: 1px;
  width: max-content;
  padding: 5px;
  touch-action: none;
  user-select: none;
  border: 1px solid #26305d;
  border-radius: 8px;
  background: #090b17;
  box-shadow: 0 0 35px rgba(54, 88, 255, 0.16);
}

.cell {
  position: relative;
  display: grid;
  width: var(--cell-size);
  height: var(--cell-size);
  overflow: hidden;
  place-items: center;
  border: 0;
  border-radius: 2px;
  background: #080a12;
}

.cell::before,
.cell::after {
  pointer-events: none;
  content: '';
}

.cell[data-tile='1'],
.cell[data-tile='5'],
.cell[data-tile='6'],
.cell[data-tile='7'] {
  background: #15182a;
}

.cell[data-tile='1']::after {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #f9d8ad;
  box-shadow: 0 0 4px #f9d8ad;
}

.cell[data-tile='2'] {
  border: 2px solid #4262ff;
  background: #101630;
  box-shadow: inset 0 0 8px rgba(54, 88, 255, 0.8), 0 0 4px rgba(54, 88, 255, 0.45);
}

.cell[data-tile='3'] {
  background: repeating-linear-gradient(45deg, #32152c 0 6px, #d552a4 6px 8px);
}

.cell[data-tile='3']::after {
  width: 52%;
  height: 2px;
  background: #ff9bdc;
}

.cell[data-tile='4'] {
  background: #102630;
}

.cell[data-tile='4']::after {
  width: 53%;
  height: 53%;
  border: 3px solid var(--teleport-color, var(--cyan));
  border-radius: 50%;
  box-shadow: 0 0 8px var(--teleport-color, var(--cyan)),
    inset 0 0 6px var(--teleport-color, var(--cyan));
}

.cell[data-tile='5']::after {
  width: 35%;
  height: 35%;
  border-radius: 50%;
  background: white;
  box-shadow: 0 0 11px white;
}

.cell[data-tile='6']::after {
  width: 62%;
  height: 62%;
  border-radius: 50%;
  background: conic-gradient(from 35deg, transparent 0 70deg, var(--yellow) 72deg);
  filter: drop-shadow(0 0 5px rgba(255, 230, 0, 0.7));
}

.cell[data-tile='7']::before,
.cell[data-tile='7']::after {
  position: absolute;
  bottom: 24%;
  width: 28%;
  height: 28%;
  border-radius: 50%;
  background: #ff354d;
  box-shadow: 0 0 5px rgba(255, 53, 77, 0.65);
}

.cell[data-tile='7']::before {
  left: 24%;
}

.cell[data-tile='7']::after {
  right: 24%;
}

.cell:hover {
  z-index: 1;
  outline: 2px solid white;
  outline-offset: -2px;
}

.cell[data-active-group='true'] {
  outline: 2px solid var(--yellow);
  outline-offset: -3px;
}

.legend {
  justify-content: center;
  flex-wrap: wrap;
  padding: 0.75rem;
}

.legend span {
  display: flex;
  align-items: center;
}

.legend-dot {
  width: 9px;
  height: 9px;
  margin-right: 0.35rem;
  border-radius: 50%;
}

.legend-dot.floor {
  background: #f9d8ad;
}

.legend-dot.power {
  background: white;
  box-shadow: 0 0 5px white;
}

.legend-dot.teleport {
  border: 2px solid var(--cyan);
}

.badge {
  padding: 0.25rem 0.48rem;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 800;
}

.badge.valid {
  color: #8cf6b3;
  border-color: #237c51;
  background: rgba(35, 124, 81, 0.15);
}

.badge.invalid {
  color: #ff9aa4;
  border-color: #9e3340;
  background: rgba(158, 51, 64, 0.15);
}

.validation-summary {
  color: #dfe4ff;
  font-size: 0.8rem;
  line-height: 1.45;
}

.validation-list {
  display: grid;
  gap: 0.45rem;
  margin: 0.7rem 0 0;
  padding: 0;
  list-style: none;
}

.validation-list li {
  padding: 0.55rem 0.6rem;
  color: #d2d8ef;
  border-left: 3px solid var(--red);
  border-radius: 3px 7px 7px 3px;
  background: rgba(255, 82, 99, 0.08);
  font-size: 0.72rem;
  line-height: 1.4;
}

.validation-list li.warning {
  border-left-color: #ffb84d;
  background: rgba(255, 184, 77, 0.08);
}

.stacked-actions {
  display: grid;
  gap: 0.45rem;
}

.stacked-actions button {
  width: 100%;
  text-align: left;
}

.shortcut-card p {
  margin: 0.45rem 0;
  color: var(--muted);
  font-size: 0.72rem;
}

kbd {
  padding: 0.16rem 0.3rem;
  color: #e7ebff;
  border: 1px solid #3a4578;
  border-bottom-width: 2px;
  border-radius: 4px;
  background: #171d36;
  font-family: inherit;
  font-size: 0.68rem;
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 20;
  max-width: min(360px, calc(100vw - 2rem));
  padding: 0.75rem 1rem;
  visibility: hidden;
  color: #111400;
  border-radius: 10px;
  background: var(--yellow);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  font-size: 0.82rem;
  font-weight: 800;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms;
}

.toast.show {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: minmax(220px, 280px) 1fr;
  }

  .status-panel {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: 1.3fr 1fr 0.8fr;
  }

  .status-panel section + section {
    border-top: 0;
    border-left: 1px solid rgba(63, 76, 137, 0.47);
  }

  .tool-dock {
    grid-template-columns: 150px minmax(0, 1fr);
  }

  .tool-dock .palette {
    display: flex;
    gap: 0.45rem;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    scrollbar-width: thin;
  }

  .tool-dock .tile-button {
    flex: 0 0 88px;
  }
}

@media (max-width: 760px) {
  :root {
    --cell-size: 31px;
  }

  body {
    padding-bottom: 136px;
  }

  .app-header {
    align-items: flex-start;
    padding: 4.4rem 1rem 1rem;
  }

  .header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .workspace {
    display: flex;
    flex-direction: column;
    padding: 0.75rem 0.75rem 3rem;
  }

  .editor-column {
    order: -1;
  }

  .grid-shell {
    min-height: 330px;
    place-items: start center;
  }

  .status-panel {
    display: block;
  }

  .status-panel section + section {
    border-top: 1px solid rgba(63, 76, 137, 0.47);
    border-left: 0;
  }

  .tool-dock {
    grid-template-columns: 1fr;
    gap: 0.55rem;
    min-height: 126px;
    padding: 0.65rem 0.75rem;
  }

  .dock-heading {
    display: flex;
    justify-content: space-between;
  }

  .dock-hint {
    display: none;
  }

  .tool-dock .palette {
    display: flex;
    gap: 0.45rem;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    scrollbar-width: thin;
  }

  .tool-dock .tile-button {
    flex: 0 0 88px;
    min-height: 72px;
  }

  .playtest-bar {
    grid-template-columns: 1fr auto;
  }

  .playtest-bar > div {
    display: none;
  }

  .related-projects-container {
    bottom: 142px !important;
  }
}

@media (max-width: 500px) {
  .app-header {
    display: block;
  }

  .header-actions {
    justify-content: flex-start;
    margin-top: 1rem;
  }

  .grid-toolbar {
    align-items: flex-start;
  }

  #saveState,
  #cursorPosition {
    display: block;
    margin-top: 0.18rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}