* { box-sizing: border-box; }

:root {
  color-scheme: dark;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  background: #102f42;
  color: #fff4d6;
}

html, body { margin: 0; min-height: 100%; background: #102f42; }
body { min-height: 100svh; overflow-x: hidden; }
html.trade-modal-open,
body.trade-modal-open { overflow: hidden; overscroll-behavior: none; }
body.trade-modal-open { position: fixed; width: 100%; }
button, a { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }

.game-page {
  width: min(100%, 980px);
  margin: 0 auto;
  padding: max(12px, env(safe-area-inset-top)) 12px max(12px, env(safe-area-inset-bottom));
}

.game-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.game-header a { color: #a9e7ff; text-decoration: none; }
.game-header h1 { margin: 0; font-size: clamp(1rem, 4vw, 1.35rem); letter-spacing: .08em; text-transform: uppercase; }
.game-header p { margin: 0; color: #b9d6d8; text-align: right; font-size: .8rem; }

.game-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 4px solid #f4d38b;
  border-radius: 4px;
  background: #2a90b8;
  box-shadow: 0 7px 0 #08212e, 0 12px 24px #071a2477;
  touch-action: none;
  user-select: none;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.status-hud {
  position: absolute;
  z-index: 1;
  top: 8px;
  left: 8px;
  right: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 10px;
  pointer-events: none;
  color: #fff8db;
  font-size: clamp(.64rem, 2.4vw, .78rem);
  text-shadow: 1px 1px 0 #092838;
}
.status-hud span {
  padding: 4px 6px;
  border: 1px solid #f4d38baa;
  border-radius: 4px;
  background: #123e55dd;
}
.status-hud strong { color: #ffe59a; }

.control-dock {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px clamp(10px, 4vw, 34px);
  width: 100%;
  padding: 14px max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
}

.d-pad {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: repeat(3, 48px);
  grid-template-rows: repeat(3, 48px);
  gap: 2px;
  filter: drop-shadow(0 3px 0 #092838aa);
}

.d-pad button,
.trade-button,
.trade-tabs button,
.trade-row button,
.close-trade {
  border: 2px solid #fff0b2;
  border-radius: 8px;
  background: #123e55d9;
  color: #fff8db;
  min-height: 44px;
  cursor: pointer;
  touch-action: manipulation;
}
.d-pad button {
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  touch-action: none;
}
.d-pad button.active { background: #e08b4f; transform: translateY(2px); }
.d-pad .north { grid-column: 2; grid-row: 1; }
.d-pad .west { grid-column: 1; grid-row: 2; }
.d-pad .east { grid-column: 3; grid-row: 2; }
.d-pad .south { grid-column: 2; grid-row: 3; }

.trade-button {
  flex: 0 0 auto;
  min-width: 84px;
  padding: 8px 14px;
  font-weight: 700;
}
.trade-button:not(:disabled):active,
.trade-tabs button[aria-selected="true"],
.trade-row button:not(:disabled):active,
.close-trade:active { background: #e08b4f; transform: translateY(2px); }
button:disabled { cursor: not-allowed; opacity: .42; }
button:focus-visible, a:focus-visible { outline: 3px solid #9fe6f6; outline-offset: 2px; }

.trade-dialog {
  width: min(440px, calc(100vw - 24px));
  max-width: calc(100vw - 24px);
  max-height: calc(100svh - 24px);
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 3px solid #f4d38b;
  border-radius: 8px;
  color: #fff4d6;
  background: #123e55;
  box-shadow: 0 10px 0 #08212e, 0 18px 34px #071a24cc;
}
.trade-dialog::backdrop { background: #061721b8; }
.trade-panel { max-height: calc(100svh - 24px); padding: 16px; overflow-y: auto; }
.trade-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.eyebrow { margin: 0 0 4px; color: #9fe6f6; font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; }
.trade-header h2 { margin: 0; color: #ffe59a; font-size: clamp(1rem, 4vw, 1.3rem); }
.trade-summary { display: grid; flex: 0 0 auto; gap: 3px; margin: 0; color: #bdefff; font-size: .72rem; text-align: right; }
.trade-summary strong { color: #ffe59a; }
.trade-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 16px 0 8px; }
.trade-tabs button { min-height: 48px; padding: 8px; font-weight: 700; }
.trade-panel-section { min-width: 0; }
.trade-list { display: grid; gap: 0; }
.trade-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 12px; min-width: 0; padding: 11px 0; border-bottom: 1px solid #6da6b488; }
.trade-row-content { min-width: 0; }
.trade-item-name { display: block; overflow-wrap: anywhere; color: #fff8db; font-weight: 700; }
.trade-item-meta { display: block; margin-top: 3px; color: #b9d6d8; font-size: .72rem; }
.trade-row button { min-width: 86px; padding: 6px 8px; }
.trade-empty { margin: 20px 0; color: #b9d6d8; text-align: center; }
.trade-feedback { min-height: 1.5em; margin: 12px 0; color: #ffe59a; font-size: .8rem; }
.close-trade { width: 100%; min-height: 52px; padding: 10px; font-weight: 700; }

@media (max-width: 600px) {
  .game-page { padding-left: 0; padding-right: 0; }
  .game-header { padding: 0 12px; }
  .game-header p { display: none; }
  .game-frame { border-left: 0; border-right: 0; border-radius: 0; }
  .trade-dialog { border-right-width: 2px; border-left-width: 2px; }
}

@media (max-width: 380px) {
  .status-hud { top: 5px; left: 5px; right: 5px; gap: 4px; }
  .status-hud span { padding: 3px 4px; }
  .trade-header { display: block; }
  .trade-summary { display: flex; justify-content: space-between; margin-top: 8px; text-align: left; }
}

@media (orientation: portrait) and (max-width: 600px) {
  .d-pad {
    grid-template-columns: repeat(3, 54px);
    grid-template-rows: repeat(3, 54px);
  }
  .d-pad button { min-width: 54px; min-height: 54px; }
}