:root {
  --bg: #0b0f0d;
  --panel: #121916;
  --panel-edge: #1f2b25;
  --text: #cfd8d3;
  --muted: #7d8c84;
  --accent: #5ef2a0;
  --npc: #9fe7c0;
  --player: #e8d9a8;
  --danger: #ff6b6b;
  --win: #ffd45e;
  --mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 var(--mono);
}

#viewport, #viewport canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

button {
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: 6px;
  padding: 6px 14px;
  cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
button:disabled { opacity: 0.4; cursor: default; }

.brand { font-weight: 700; letter-spacing: 0.2em; margin: 0; }
.brand span { color: var(--accent); }

/* HUD */

.hud { position: fixed; inset: 0; pointer-events: none; }

.hud-location {
  position: absolute;
  top: 14px;
  left: 18px;
  font-size: 13px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-shadow: 0 1px 3px #000;
}

.crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  transform: translate(-50%, -50%);
}
.crosshair::before, .crosshair::after {
  content: "";
  position: absolute;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 0 2px #000;
}
.crosshair::before { left: 6px; top: 0; width: 2px; height: 14px; }
.crosshair::after { top: 6px; left: 0; height: 2px; width: 14px; }

.hud-prompt {
  position: absolute;
  top: calc(50% + 28px);
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--panel-edge);
  border-radius: 4px;
  white-space: nowrap;
}

.hud-toast {
  position: absolute;
  bottom: 20%;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid var(--danger);
  border-radius: 4px;
  color: var(--text);
  max-width: 80vw;
  text-align: center;
}

.hud-help {
  position: absolute;
  bottom: 12px;
  left: 18px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  text-shadow: 0 1px 2px #000;
}

/* Start / pause overlay */

.overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(5, 8, 7, 0.72);
  backdrop-filter: blur(2px);
}
.overlay[hidden] { display: none; }
.overlay-card { text-align: center; max-width: 520px; padding: 24px; }
.overlay-card .brand { font-size: 40px; }
.overlay-sub { color: var(--muted); margin: 12px 0 22px; }
.overlay-card button { padding: 10px 32px; font-size: 16px; }
.overlay-controls { color: var(--muted); font-size: 12px; margin-top: 22px; }

/* Chat overlay */

.chat-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(5, 8, 7, 0.55);
  padding: 24px;
}
.chat-overlay[hidden] { display: none; }

.chat-window {
  width: min(1000px, 100%);
  height: min(720px, 100%);
  display: flex;
  flex-direction: column;
  background: rgba(11, 15, 13, 0.96);
  border: 1px solid var(--panel-edge);
  border-radius: 10px;
  overflow: hidden;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--panel-edge);
}
.chat-title { flex: 1; }
.chat-npc { color: var(--npc); }
.chat-room { color: var(--muted); font-size: 12px; }

.status {
  padding: 2px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.status[data-status="hostile"] { color: var(--danger); }
.status[data-status="defeated"] { color: var(--win); }

.chat-body {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 220px 1fr;
}

.chat-side {
  padding: 16px;
  border-right: 1px solid var(--panel-edge);
  overflow-y: auto;
}

.sprite-frame {
  aspect-ratio: 1;
  border: 1px solid var(--panel-edge);
  border-radius: 8px;
  background: radial-gradient(circle at 50% 40%, #16221c, #0b0f0d 70%);
  display: grid;
  place-items: center;
  overflow: hidden;
  margin-bottom: 16px;
}
.sprite-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}
.sprite-placeholder { font-size: 56px; color: var(--panel-edge); }

.panel { margin-bottom: 16px; }
.panel h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--muted);
  margin: 0 0 6px;
}

.item-list { list-style: none; margin: 0; padding: 0; }
.item-list li { padding: 4px 8px; margin-bottom: 4px; border-left: 2px solid var(--panel-edge); }
.item-list li.new { border-left-color: var(--win); color: var(--win); }
.item-list li.empty { color: var(--muted); font-style: italic; border: none; }

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

.log {
  flex: 1;
  overflow-y: auto;
  padding: 20px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.entry { max-width: 72ch; animation: fade-in 0.25s ease-out; }
.entry.narration { color: var(--muted); font-style: italic; }
.entry.system { color: var(--muted); font-size: 13px; text-align: center; align-self: center; }
.entry.system.error { color: var(--danger); }
.entry.system.win { color: var(--win); }
.entry.player { align-self: flex-end; text-align: right; color: var(--player); }
.entry.player::before { content: "YOU"; display: block; font-size: 11px; letter-spacing: 0.15em; color: var(--muted); }
.entry.npc .speaker { font-size: 11px; letter-spacing: 0.15em; color: var(--muted); text-transform: uppercase; }
.entry.npc .action { color: var(--muted); font-style: italic; margin: 2px 0 4px; }
.entry.npc .dialogue { color: var(--npc); }

.typing .dialogue::after { content: "▋"; animation: blink 1s steps(1) infinite; }

.banner {
  margin: 0 28px 12px;
  padding: 10px 16px;
  border: 1px solid var(--win);
  border-radius: 8px;
  color: var(--win);
  text-align: center;
}
.banner.hostile { border-color: var(--danger); color: var(--danger); }

.composer {
  display: flex;
  gap: 10px;
  padding: 12px 28px 18px;
  border-top: 1px solid var(--panel-edge);
}
.composer textarea {
  flex: 1;
  resize: none;
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: 6px;
  padding: 10px 12px;
}
.composer textarea:focus { outline: none; border-color: var(--accent); }

@keyframes fade-in { from { opacity: 0; transform: translateY(4px); } }
@keyframes blink { 50% { opacity: 0; } }

@media (max-width: 760px) {
  .chat-overlay { padding: 0; }
  .chat-window { border-radius: 0; }
  .chat-body { grid-template-columns: 1fr; }
  .chat-side { display: none; }
  .hud-help { display: none; }
}