:root {
  color-scheme: dark;
  --bg: #2b2d31;
  --case: #20242a;
  --case-edge: #0e1014;
  --screen: #a9c98c;
  --screen-dark: #26361d;
  --screen-grid: rgba(38, 54, 29, 0.2);
  --key: #343a43;
  --key-dark: #1b1f26;
  --key-blue: #2f79b7;
  --key-green: #55764b;
  --key-orange: #b87934;
  --text: #f3f4ed;
  --muted: #bcc2b7;
  --line: #080a0d;
  --cyan: #38a8d8;
  --green: #89b65f;
  --red: #d85f58;
  --gold: #e0ad4f;
}

* {
  box-sizing: border-box;
}

* {
  scrollbar-width: thin;
  scrollbar-color: #5b6370 #15191f;
}

*::-webkit-scrollbar {
  width: 10px;
}

*::-webkit-scrollbar-track {
  background: #15191f;
}

*::-webkit-scrollbar-thumb {
  background: #5b6370;
  border: 2px solid #15191f;
  border-radius: 8px;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.08), transparent 24%),
    linear-gradient(135deg, #393c42, var(--bg) 58%, #181a1f);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.classic-mode {
  background:
    linear-gradient(180deg, rgba(32, 47, 90, 0.62), transparent 42%),
    #11141c;
}

button,
input,
textarea,
select {
  font: inherit;
}

.shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 18px;
  height: 100vh;
  padding: 18px;
}

.game-area {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 14px solid var(--case-edge);
  border-radius: 8px;
  background: var(--screen);
  box-shadow:
    inset 0 0 0 4px #38412f,
    0 24px 50px rgba(0, 0, 0, 0.42);
}

body.classic-mode .game-area {
  border: 0;
  border-radius: 0;
  background: #11141c;
  box-shadow: none;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hud {
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  pointer-events: none;
  color: var(--screen-dark);
  font-family: "Courier New", ui-monospace, monospace;
  text-shadow: none;
}

body.classic-mode .hud {
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.62);
}

body.classic-mode .hud strong,
body.classic-mode .hud span {
  width: fit-content;
  padding: 3px 7px;
  border-radius: 4px;
  background: rgba(8, 10, 13, 0.42);
}

body.classic-mode .hud span {
  color: var(--muted);
}

.hud strong,
.hud span {
  display: block;
}

.hud strong {
  font-size: 17px;
  text-transform: uppercase;
}

.hud span {
  color: rgba(38, 54, 29, 0.8);
  font-size: 12px;
  margin-top: 4px;
}

.stats {
  text-align: right;
}

.status {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  padding: 12px 16px;
  border: 2px solid rgba(38, 54, 29, 0.7);
  border-radius: 2px;
  background: rgba(169, 201, 140, 0.86);
  color: var(--screen-dark);
  font-family: "Courier New", ui-monospace, monospace;
  font-weight: 700;
  pointer-events: none;
}

body.classic-mode .status {
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(16, 17, 21, 0.72);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

.status.hidden {
  display: none;
}

.achievement {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 4px;
  width: min(320px, calc(100% - 36px));
  padding: 13px 15px;
  border: 2px solid rgba(38, 54, 29, 0.7);
  border-radius: 2px;
  background: rgba(169, 201, 140, 0.92);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.32);
  pointer-events: none;
  font-family: "Courier New", ui-monospace, monospace;
}

body.classic-mode .achievement {
  border: 1px solid rgba(255, 209, 102, 0.55);
  border-radius: 8px;
  background: rgba(18, 22, 29, 0.9);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

body.classic-mode .achievement strong {
  color: var(--gold);
}

body.classic-mode .achievement span {
  color: var(--text);
}

.achievement.hidden {
  display: none;
}

.achievement strong {
  color: var(--screen-dark);
  font-size: 15px;
}

.achievement span {
  color: rgba(38, 54, 29, 0.88);
  font-size: 13px;
}

.final-track {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 5;
  display: grid;
  gap: 8px;
  width: min(300px, calc(100% - 36px));
  padding: 12px 14px;
  border: 2px solid rgba(38, 54, 29, 0.7);
  border-radius: 3px;
  background: rgba(169, 201, 140, 0.94);
  color: var(--screen-dark);
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 800;
}

.final-track.hidden {
  display: none;
}

body.classic-mode .final-track {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(18, 22, 29, 0.9);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

.win-screen {
  position: absolute;
  inset: 0;
  z-index: 8;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(8, 10, 13, 0.76);
}

.win-screen.hidden {
  display: none;
}

.win-screen-panel {
  width: min(520px, 100%);
  display: grid;
  gap: 12px;
  padding: 26px;
  border: 2px solid var(--gold);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 209, 102, 0.16), transparent 34%),
    #15191f;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.55);
  text-align: center;
}

.win-screen-rank {
  color: var(--gold);
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.win-screen h2 {
  margin: 0;
  color: var(--text);
  font-size: 30px;
  line-height: 1.05;
}

.win-screen p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.start-screen {
  position: absolute;
  inset: 0;
  z-index: 9;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(8, 10, 13, 0.72), rgba(8, 10, 13, 0.9)),
    rgba(8, 10, 13, 0.84);
}

.start-screen.hidden,
.start-screen-panel.hidden {
  display: none;
}

.start-screen-panel {
  width: min(560px, 100%);
  display: grid;
  gap: 14px;
  padding: 28px;
  border: 2px solid #8fd0ff;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(56, 168, 216, 0.16), transparent 36%),
    #15191f;
  box-shadow: 0 26px 76px rgba(0, 0, 0, 0.62);
  text-align: center;
}

.start-screen-model {
  width: fit-content;
  justify-self: center;
  padding: 4px 9px;
  border: 1px solid #303746;
  border-radius: 4px;
  color: var(--gold);
  font-family: "Courier New", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.start-screen h2 {
  margin: 0;
  color: var(--text);
  font-size: 42px;
  line-height: 1;
}

.start-screen p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.start-screen-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.instructions-panel {
  text-align: left;
}

.instructions-panel .start-screen-model,
.instructions-panel h2 {
  justify-self: start;
}

.instructions-panel ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.4;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  padding: 22px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.08), transparent 28%),
    var(--case);
  border: 3px solid var(--case-edge);
  border-radius: 10px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 24px 50px rgba(0, 0, 0, 0.35);
  overflow-y: auto;
}

body.classic-mode .panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 190px),
    #181b22;
  border: 1px solid #303746;
  border-radius: 0;
  box-shadow: none;
}

body.classic-mode .model {
  display: none;
}

body.classic-mode .brand h1 {
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  text-transform: none;
}

body.classic-mode .brand p {
  display: none;
}

body.classic-mode .editor-control {
  display: none;
}

.model {
  display: block;
  width: fit-content;
  margin-bottom: 8px;
  padding: 4px 8px;
  border: 1px solid #11151a;
  border-radius: 3px;
  background: #15191f;
  color: #d9dfd0;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1;
  font-family: "Courier New", ui-monospace, monospace;
  text-transform: uppercase;
}

.brand p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 14px;
}

.panel-nav {
  position: sticky;
  top: -22px;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin: -2px -2px 0;
  padding: 10px 0;
  background: linear-gradient(180deg, var(--case) 78%, rgba(32, 36, 42, 0));
}

.panel-nav a {
  min-height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid #11151a;
  border-radius: 5px;
  background: #15191f;
  color: var(--text);
  text-decoration: none;
  font-size: 12px;
  font-weight: 800;
}

.panel-nav a:hover,
.panel-nav a:focus-visible {
  border-color: #8fd0ff;
  outline: none;
}

.control-section {
  display: grid;
  gap: 10px;
  scroll-margin-top: 92px;
}

.control-section h2 {
  margin: 0;
  padding: 0 0 5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 13px;
  line-height: 1.1;
  text-transform: uppercase;
}

body.classic-mode .panel-nav {
  background: linear-gradient(180deg, #181b22 78%, rgba(24, 27, 34, 0));
}

body.classic-mode .panel-nav a {
  border-color: #303746;
  background: #202632;
}

body.classic-mode .panel-nav a[href="#buildControls"] {
  display: none;
}

body.classic-mode .control-section h2 {
  border-color: #303746;
  text-transform: none;
}

.controls,
.row {
  display: grid;
  gap: 8px;
}

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

.row {
  grid-template-columns: 1fr 1fr;
}

.editor-control textarea {
  min-height: 88px;
}

.cheat-panel {
  display: grid;
  grid-template-columns: 112px 112px minmax(0, 1fr);
  gap: 10px;
  align-items: end;
  padding: 10px;
  border: 1px solid #11151a;
  border-radius: 6px;
  background: rgba(8, 10, 13, 0.28);
}

.character-panel {
  display: grid;
  gap: 10px;
  padding: 10px;
  border: 1px solid #11151a;
  border-radius: 6px;
  background: rgba(8, 10, 13, 0.22);
}

.character-colors {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.player-options {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 8px;
  align-items: end;
}

.player-options .switch {
  grid-column: 1 / -1;
  min-height: 48px;
}

.character-colors label {
  min-width: 0;
}

input[type="color"] {
  width: 100%;
  min-height: 42px;
  border: 2px solid #0c1208;
  border-radius: 3px;
  padding: 3px;
  background: var(--screen);
}

input[type="file"] {
  min-height: 42px;
  border: 2px solid #0c1208;
  border-radius: 3px;
  padding: 8px;
  background: var(--screen);
  color: var(--screen-dark);
  font-size: 12px;
  font-weight: 700;
}

.switch {
  min-height: 62px;
  grid-template-columns: 26px 1fr;
  align-items: center;
  gap: 9px;
  padding: 9px;
  border: 1px solid #0f1318;
  border-radius: 6px;
  background: linear-gradient(#424955, var(--key));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 3px 0 var(--key-dark);
}

.switch input {
  width: 22px;
  min-height: 22px;
  accent-color: var(--key-orange);
}

button {
  min-height: 42px;
  border: 1px solid #0f1318;
  border-radius: 6px;
  background: linear-gradient(#424955, var(--key));
  color: var(--text);
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 4px 0 var(--key-dark);
  font-weight: 800;
}

button:hover {
  border-color: #8fd0ff;
}

button:focus-visible {
  outline: 3px solid rgba(255, 209, 102, 0.5);
  outline-offset: 2px;
}

button:active {
  transform: translateY(3px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 1px 0 var(--key-dark);
}

#playPause,
#jumpButton {
  background: linear-gradient(#3b92d7, var(--key-blue));
}

#restart,
#nextLevel {
  background: linear-gradient(#c98c47, var(--key-orange));
}

#applyLevel {
  background: linear-gradient(#6c8f5f, var(--key-green));
  border-color: #101710;
}

body.classic-mode button {
  background: #202632;
  box-shadow: none;
}

body.classic-mode #playPause,
body.classic-mode #jumpButton {
  background: #153441;
}

body.classic-mode #restart,
body.classic-mode #nextLevel {
  background: #3c2a16;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input:not([type="checkbox"]),
textarea,
select {
  width: 100%;
  min-height: 42px;
  border: 2px solid #0c1208;
  border-radius: 3px;
  padding: 0 11px;
  background:
    linear-gradient(transparent 95%, rgba(38, 54, 29, 0.15) 95%),
    var(--screen);
  background-size: 100% 18px;
  color: var(--screen-dark);
  font-family: "Courier New", ui-monospace, monospace;
  font-weight: 700;
}

body.classic-mode input:not([type="checkbox"]),
body.classic-mode textarea,
body.classic-mode select {
  border: 1px solid #303746;
  background: #11141a;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-weight: 600;
}

body.classic-mode .cheat-panel {
  border-color: #303746;
  background: rgba(255, 255, 255, 0.035);
}

body.classic-mode .character-panel {
  border-color: #303746;
  background: rgba(255, 255, 255, 0.035);
}

body.classic-mode .switch {
  background: #202632;
  box-shadow: none;
}

body.classic-mode input[type="color"],
body.classic-mode input[type="file"] {
  border: 1px solid #303746;
  background: #11141a;
  color: var(--text);
}

textarea {
  min-height: 112px;
  padding: 10px 11px;
  line-height: 1.35;
  resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(169, 201, 140, 0.35);
  border-color: #26361d;
}

.notes {
  display: grid;
  gap: 8px;
  margin-top: auto;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  font-family: "Courier New", ui-monospace, monospace;
}

body.classic-mode .notes {
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

.music-credit {
  color: var(--gold);
}

@media (max-width: 860px) {
  body {
    overflow: auto;
  }

  .shell {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(420px, 62vh) auto;
    height: auto;
    min-height: 100vh;
    padding: 10px;
  }

  .panel {
    border: 3px solid var(--case-edge);
  }

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

  .cheat-panel {
    grid-template-columns: 1fr;
  }

  .panel-nav {
    top: -22px;
    grid-template-columns: repeat(2, 1fr);
  }

  .character-colors {
    grid-template-columns: 1fr;
  }

  .player-options {
    grid-template-columns: 1fr;
  }

  .player-options .switch {
    grid-column: auto;
  }

  .row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .shell {
    padding: 0;
  }

  .game-area,
  .panel {
    border-radius: 0;
  }

  .panel {
    padding: 16px;
  }

  .hud {
    top: 10px;
    left: 10px;
    right: 10px;
  }
}