@font-face {
  font-family: "APL386";
  src: url("./APL386.ttf") format("truetype");
  font-display: swap;
}

:root {
  --bg-0: #04090d;
  --bg-1: #07161b;
  --bg-2: #0b2425;
  --ink: #e9f8f2;
  --muted: #9cc4b7;
  --gold: #f0d27e;
  --gold-2: #c4a85c;
  --teal: #67cbb0;
  --line: rgba(160, 225, 208, 0.22);
  --panel: rgba(8, 20, 21, 0.72);
  --panel-2: rgba(10, 26, 27, 0.82);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "APL386", ui-monospace, monospace;
  color: var(--ink);
  background:
    radial-gradient(48rem 26rem at 12% 6%, rgba(240, 210, 126, 0.14), transparent 60%),
    radial-gradient(42rem 24rem at 94% 8%, rgba(103, 203, 176, 0.14), transparent 62%),
    radial-gradient(60rem 40rem at 50% 115%, rgba(10, 60, 58, 0.45), transparent 70%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 35%, var(--bg-2));
  padding: 18px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.07;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at 50% 20%, #000, transparent 80%);
}

.app-shell {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
  animation: shell-in 380ms ease-out;
}

.toolbar {
  display: flex;
  gap: 12px 16px;
  align-items: end;
  justify-content: space-between;
  flex-wrap: wrap;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0)),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.05) inset,
    0 18px 40px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(8px);
}

.title-block {
  min-width: 260px;
}

.title-block .eyebrow {
  margin: 0 0 4px;
  color: rgba(240, 210, 126, 0.9);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.title-block h1 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  letter-spacing: 0.05em;
  line-height: 1.05;
}

.title-block > p:last-child {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  max-width: 62ch;
  line-height: 1.3;
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button {
  font: inherit;
  font-size: 0.84rem;
  letter-spacing: 0.03em;
  color: #16271f;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0)),
    linear-gradient(180deg, var(--gold), var(--gold-2));
  border: 1px solid rgba(13, 22, 18, 0.5);
  border-radius: 10px;
  padding: 9px 12px;
  cursor: pointer;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.35) inset,
    0 2px 0 rgba(0, 0, 0, 0.24),
    0 10px 22px rgba(0, 0, 0, 0.18);
  transition: transform 120ms ease, filter 120ms ease, box-shadow 120ms ease;
}

button:hover {
  filter: brightness(1.03);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.35) inset,
    0 2px 0 rgba(0, 0, 0, 0.24),
    0 14px 28px rgba(0, 0, 0, 0.22);
}

button:active {
  transform: translateY(1px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.28) inset,
    0 1px 0 rgba(0, 0, 0, 0.24),
    0 6px 16px rgba(0, 0, 0, 0.2);
}

button:focus-visible {
  outline: 2px solid rgba(103, 203, 176, 0.95);
  outline-offset: 2px;
}

.canvas-stage {
  position: relative;
  display: grid;
  place-items: center;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 18% 10%, rgba(103, 203, 176, 0.08), transparent 45%),
    radial-gradient(circle at 82% 10%, rgba(240, 210, 126, 0.08), transparent 45%),
    var(--panel-2);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 26px 60px rgba(0, 0, 0, 0.28);
  min-height: 320px;
  overflow: hidden;
}

.stage-glow {
  position: absolute;
  inset: -15% -8%;
  pointer-events: none;
  opacity: 0.35;
  background:
    radial-gradient(circle at 10% 15%, rgba(103, 203, 176, 0.16), transparent 42%),
    radial-gradient(circle at 85% 12%, rgba(240, 210, 126, 0.16), transparent 44%),
    radial-gradient(circle at 50% 100%, rgba(30, 110, 98, 0.22), transparent 55%);
  filter: blur(18px);
}

#game-canvas {
  position: relative;
  z-index: 1;
  display: block;
  width: min(100%, 1200px);
  height: auto;
  border-radius: 14px;
  border: 1px solid rgba(132, 212, 194, 0.35);
  box-shadow:
    0 0 0 1px rgba(7, 20, 19, 0.45) inset,
    0 10px 30px rgba(0, 0, 0, 0.28);
  background: transparent;
  touch-action: none;
}

.app-shell:fullscreen {
  max-width: none;
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 12px;
  gap: 10px;
  background:
    radial-gradient(70rem 40rem at 10% 4%, rgba(240, 210, 126, 0.12), transparent 62%),
    radial-gradient(60rem 34rem at 92% 8%, rgba(103, 203, 176, 0.12), transparent 62%),
    linear-gradient(180deg, #041015, #06191c);
}

.app-shell:fullscreen .toolbar {
  border-radius: 14px;
}

.app-shell:fullscreen .canvas-stage {
  flex: 1;
  min-height: 0;
  height: 100%;
}

.app-shell:fullscreen #game-canvas {
  max-width: none;
}

@media (max-width: 780px) {
  body {
    padding: 10px;
  }

  .toolbar {
    padding: 10px;
  }

  .title-block > p:last-child {
    font-size: 0.74rem;
  }

  .toolbar-actions {
    width: 100%;
    justify-content: stretch;
  }

  .toolbar-actions button {
    flex: 1 1 0;
    min-width: 0;
    padding-inline: 8px;
    font-size: 0.76rem;
  }

  .canvas-stage {
    padding: 8px;
    border-radius: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .app-shell {
    animation: none;
  }

  button {
    transition: none;
  }
}

@keyframes shell-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}