/* Hallmark · checked: 2026-11-11 · genre: playful (inferred)
 * floor: 0 FAIL · fixed: 7a, 10a, 24b, 29, 48, 67 · structural: 0 printed
 * built: the project · redesign: polish · v2.0.0 */
/* Iron Gauntlet browser demo: HUD and overlays (the battlefield itself is a canvas). Self-contained palette. */
:root {
  --igd-amber: #FFB641; --igd-amber-hi: #FFC76A; --igd-amber-lo: #F0A22E; --igd-amber-dark: #8A5A15; --igd-on-amber: #1A1006;
  --igd-red: #D8402A; --igd-red-deep: #B0301C; --igd-green: #9CD64A; --igd-text: #E6D6B0; --igd-dim: #AE9E80; --igd-paper: #FFF4DC;
  --igd-panel: #1C160F; --igd-edge: #5C4B36; --igd-ground: #0F0B07; --igd-shadow: #080503;
  --igd-stage: #241E15; --igd-btn-hi: #3A2F21; --igd-btn-lo: #241C13; --igd-send-hi: #5A3A12; --igd-send-lo: #3A250C; --igd-send-edge: #8A6122; --igd-muted-hi: #5A4A33;
  --igd-display: "Barlow Condensed", "Avenir Next Condensed", sans-serif;
  --igd-body: "Barlow", "Avenir Next", system-ui, sans-serif;
  --igd-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ig-demo {
  --amber: var(--igd-amber); --amber-hi: var(--igd-amber-hi); --amber-lo: var(--igd-amber-lo); --amber-dark: var(--igd-amber-dark); --on-amber: var(--igd-on-amber);
  --red: var(--igd-red); --red-deep: var(--igd-red-deep); --green: var(--igd-green); --text: var(--igd-text); --dim: var(--igd-dim); --paper: var(--igd-paper);
  --panel-solid: var(--igd-panel); --panel: color-mix(in srgb, var(--panel-solid) 92%, transparent); --edge: var(--igd-edge); --ink: var(--igd-ground); --shadow: var(--igd-shadow);
  --stage: var(--igd-stage); --btn-hi: var(--igd-btn-hi); --btn-lo: var(--igd-btn-lo); --send-hi: var(--igd-send-hi); --send-lo: var(--igd-send-lo); --send-edge: var(--igd-send-edge); --muted-hi: var(--igd-muted-hi);
  --body: var(--igd-body); --mono: var(--igd-mono); --display: var(--igd-display);
  position: relative;
  outline: none;
  color: var(--text);
  font-family: var(--body);
  -webkit-user-select: none; user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.ig-demo [hidden] { display: none !important; }
.igd-stage { position: relative; border-radius: 14px; overflow: hidden; background: var(--stage); box-shadow: 0 32px 80px -20px color-mix(in srgb, var(--shadow) 80%, transparent), 0 0 0 1px color-mix(in srgb, var(--amber) 18%, transparent); }
.igd-canvas { display: block; width: 100%; aspect-ratio: 18 / 12; touch-action: manipulation; cursor: crosshair; }
.ig-demo:not(.is-playing) .igd-canvas { cursor: default; }

.igd-hud {
  position: absolute; left: 10px; right: 10px; top: 10px;
  display: flex; gap: 8px; align-items: stretch; pointer-events: none;
}
.igd-hud > * { pointer-events: auto; }
.igd-stat {
  background: var(--panel); border: 1px solid var(--edge); border-radius: 8px;
  padding: 4px 12px; display: flex; flex-direction: column; line-height: 1.1;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--paper) 6%, transparent);
}
.igd-k { font-size: 12px; font-weight: 400; color: var(--dim); }
.igd-stat b { font-family: var(--mono); font-size: 16px; color: var(--amber); font-variant-numeric: tabular-nums; }
.igd-stat.is-low b { color: var(--red); animation: igd-blink .6s steps(2) infinite; }
.igd-spacer { flex: 1; }
.igd-icon {
  background: var(--panel); border: 1px solid var(--edge); border-radius: 8px; color: var(--text);
  min-width: 40px; font: 600 14px/1 inherit; font-family: inherit; cursor: pointer; display: grid; place-items: center;
}
.igd-icon svg { width: 20px; height: 20px; }
.igd-sound .igd-wave1 { display: none; }
.igd-sound[aria-pressed="true"] .igd-wave1 { display: inline; }
.igd-sound[aria-pressed="true"] .igd-x { display: none; }
.igd-icon:hover { border-color: var(--amber); color: var(--amber); }

.igd-bar {
  position: absolute; left: 10px; right: 10px; bottom: 10px;
  display: flex; gap: 8px; align-items: flex-end; pointer-events: none;
}
.igd-bar > * { pointer-events: auto; }
.igd-palette { display: flex; gap: 8px; }
.igd-palette[hidden], .igd-selection[hidden] { display: none; }
.igd-tower {
  position: relative; width: 76px; padding: 4px; border-radius: 10px; cursor: pointer;
  background: var(--panel); border: 1px solid var(--edge); color: var(--text);
  display: flex; flex-direction: column; align-items: center; gap: 1px; font-family: inherit;
  transition: transform .15s, border-color .15s, box-shadow .15s;
}
.igd-tower img { width: 44px; height: 46px; object-fit: contain; filter: drop-shadow(0 4px 4px color-mix(in srgb, var(--shadow) 60%, transparent)); }
.igd-tower span { font-size: 12px; font-weight: 400; white-space: nowrap; }
.igd-tower b { font-family: var(--mono); font-size: 12px; color: var(--amber); }
.igd-tower:hover { transform: translateY(-2px); border-color: var(--amber); }
.igd-tower:active { transform: translateY(1px); }
.igd-tower.is-on { border-color: var(--amber); box-shadow: 0 0 0 2px var(--amber), 0 8px 16px -8px var(--shadow); }
.igd-tower.is-poor { opacity: .55; }
.igd-tower.is-poor b { color: var(--red); }

.igd-selection {
  display: flex; gap: 8px; align-items: center; background: var(--panel); border: 1px solid var(--edge);
  border-radius: 12px; padding: 8px 8px 8px 12px;
}
.igd-sel-name { font-size: 15px; font-weight: 600; margin-right: 4px; }
.igd-sel-name span { color: var(--amber); letter-spacing: 0; }

.igd-btn {
  font-family: inherit; font-size: 15px; font-weight: 600;
  color: var(--text); background: linear-gradient(var(--btn-hi), var(--btn-lo)); border: 1px solid var(--edge);
  border-radius: 8px; padding: 8px 12px; cursor: pointer; white-space: nowrap;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--paper) 8%, transparent), 0 2px 0 var(--shadow);
}
.igd-btn b { color: var(--amber); }
.igd-btn:hover:not(:disabled) { border-color: var(--amber); }
.igd-btn:active:not(:disabled) { transform: translateY(1px); box-shadow: inset 0 1px 0 color-mix(in srgb, var(--paper) 8%, transparent); }
.igd-btn:disabled { opacity: .5; cursor: default; }
.igd-btn.is-poor b { color: var(--red); }
.igd-send { margin-left: auto; min-width: 150px; background: linear-gradient(var(--send-hi), var(--send-lo)); border-color: var(--send-edge); }
.igd-send small { color: var(--amber); font-size: 13px; margin-left: 4px; }
.igd-send.is-urgent { animation: igd-pulse .5s ease-in-out infinite alternate; }

.igd-hint {
  position: absolute; left: 50%; top: 62px; transform: translateX(-50%); max-width: min(560px, 86%);
  background: color-mix(in srgb, var(--ink) 90%, transparent); border: 1px solid color-mix(in srgb, var(--amber) 50%, transparent); border-radius: 8px;
  padding: 8px 16px; font-size: 15px; line-height: 1.45; text-align: center; pointer-events: none;
  animation: igd-in .35s ease-out;
}
.igd-hint b { color: var(--amber); }
.igd-toast {
  position: absolute; left: 50%; bottom: 92px; transform: translate(-50%, 8px); opacity: 0;
  background: var(--red-deep); color: var(--paper); font-size: 15px; font-weight: 600;
  padding: 4px 12px; border-radius: 8px; pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.igd-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

.igd-overlay {
  position: absolute; inset: 0; display: grid; place-items: center; padding: 16px;
  background: radial-gradient(ellipse at center, color-mix(in srgb, var(--ink) 20%, transparent), color-mix(in srgb, var(--ink) 70%, transparent));
  animation: igd-in .4s ease-out;
}
.igd-overlay[hidden] { display: none; }
.igd-card {
  max-width: 440px; text-align: center; background: var(--panel-solid); border: 1px solid var(--edge);
  border-radius: 16px; padding: 24px 24px 20px; box-shadow: inset 0 1px 0 color-mix(in srgb, var(--paper) 6%, transparent);
}
.igd-eyebrow { font-size: 15px; font-weight: 600; color: var(--amber); }
.igd-card h3 {
  font-family: var(--display); font-weight: 800; font-size: 40px; text-wrap: balance;
  text-transform: uppercase; letter-spacing: .01em; margin: 4px 0 8px; color: var(--paper); line-height: 1;
}
.igd-card p { font-size: 16px; line-height: 1.55; color: var(--text); margin: 0 0 16px; }
.igd-card p b { color: var(--amber); }
.igd-small { font-size: 14px; color: var(--dim); margin-top: 12px; }
.igd-primary {
  font-size: 17px; padding: 12px 28px; color: var(--on-amber); border: 0;
  background: linear-gradient(var(--amber-hi), var(--amber-lo)); box-shadow: 0 4px 0 var(--amber-dark), 0 12px 24px -8px var(--shadow);
}
.igd-primary:hover:not(:disabled) { filter: brightness(1.08); }
.igd-primary:active:not(:disabled) { transform: translateY(2px); box-shadow: 0 2px 0 var(--amber-dark); }
.igd-primary:disabled { opacity: .85; background: linear-gradient(var(--muted-hi), var(--btn-hi)); color: var(--text); box-shadow: none; }
.igd-progress { height: 4px; background: color-mix(in srgb, var(--paper) 8%, transparent); border-radius: 2px; overflow: hidden; margin: 0 auto 16px; max-width: 240px; }
.igd-progress i { display: block; height: 100%; width: 100%; background: var(--amber); transform-origin: left; transform: scaleX(0); transition: transform .25s; }
.igd-progress.is-done { visibility: hidden; }
.igd-end-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin: 8px 0 16px; }
.igd-end-stats div { background: color-mix(in srgb, var(--shadow) 30%, transparent); border-radius: 8px; padding: 8px 4px; }
.igd-end-stats b { display: block; font-family: var(--mono); font-size: 20px; color: var(--amber); }
.igd-end-stats span { font-size: 13px; color: var(--dim); }
.igd-store { display: inline-block; margin: 0 8px 4px; vertical-align: middle; transition: transform .15s; }
.igd-store:hover { transform: translateY(-2px); }
.igd-store:active { transform: translateY(1px); }
.igd-store img { display: block; height: 52px; width: auto; }
.igd-again { vertical-align: middle; margin-bottom: 4px; }

@keyframes igd-in { from { opacity: 0; transform: translateY(6px); } }
.igd-hint { animation-name: igd-in-x; }
@keyframes igd-in-x { from { opacity: 0; transform: translate(-50%, 6px); } }
@keyframes igd-pulse { to { box-shadow: 0 0 0 2px var(--amber), 0 2px 0 var(--shadow); } }
@keyframes igd-blink { 50% { opacity: .4; } }

@media (prefers-reduced-motion: reduce) {
  .ig-demo *, .ig-demo *::before, .ig-demo *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

@media (max-width: 720px) {
  /* Phones: the HUD and build bar sit above and below the battlefield instead of over it. */
  .ig-demo.is-playing .igd-stage { display: flex; flex-direction: column; }
  .ig-demo.is-playing .igd-hud { position: static; order: -1; padding: 8px; background: var(--panel-solid); }
  .ig-demo.is-playing .igd-bar { position: static; padding: 8px; background: var(--panel-solid); min-height: 56px; align-items: center; flex-wrap: wrap; }
  .igd-selection { flex: 1 1 auto; flex-wrap: wrap; }
  .igd-send small { margin-left: 2px; }
  .igd-hud { top: 6px; left: 6px; right: 6px; gap: 4px; }
  .igd-stat { padding: 4px 8px; border-radius: 8px; }
  .igd-stat b { font-size: 13px; }
  .igd-k { font-size: 11px; }
  .igd-route-stat { display: none; }
  .igd-icon { min-width: 30px; border-radius: 6px; font-size: 11px; }
  .igd-icon svg { width: 16px; height: 16px; }
  .igd-hint { top: 44px; font-size: 13px; padding: 4px 8px; }
  .igd-bar { left: 6px; right: 6px; bottom: 6px; gap: 4px; }
  .igd-tower { width: 48px; padding: 4px; border-radius: 8px; }
  .igd-tower img { width: 28px; height: 30px; }
  .igd-tower span { display: none; }
  .igd-tower b { font-size: 11px; }
  .igd-btn { font-size: 13px; padding: 8px; }
  .igd-send { min-width: 0; }
  .igd-sel-name { font-size: 13px; }
  .igd-selection { padding: 4px 4px 4px 8px; }
  .igd-card { padding: 16px 16px 12px; }
  .igd-card h3 { font-size: 28px; }
  .igd-card p { font-size: 14px; margin-bottom: 12px; }
  .igd-toast { bottom: 70px; }
  .igd-end-stats b { font-size: 15px; }
  .igd-store img { height: 42px; }
}
@media (max-width: 460px) {
  .igd-card p { font-size: 13px; }
  .igd-end-stats { margin-bottom: 8px; }
}