/* THE LINE — Vercel-style strict neutral palette + dark/light */

@font-face {
  font-family: 'Departure Mono';
  src: url('https://cdn.jsdelivr.net/gh/StudioTrace/departure-mono@main/fonts/DepartureMono-Regular.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

:root {
  /* dark = default; near-black, neutral greys, single lime accent */
  --bg: #000000;
  --bg-2: #0a0a0a;
  --bg-3: #111111;
  --panel: #0a0a0a;
  --panel-2: #141414;
  --border: #2a2a2a;
  --border-soft: #1f1f1f;
  --border-strong: #3a3a3a;
  --fg: #ededed;
  --fg-dim: #8a8a8a;
  --fg-faint: #525252;
  --accent-1: #ededed;       /* hi-contrast text accent */
  --accent-2: #ffffff;       /* pure white for emphasis */
  --accent-3: #c8ff00;       /* sole brand color: lime */
  --accent-4: #ffb000;       /* amber for warnings */
  --success: #50e3a4;
  --danger: #ff4d4d;
  --grid: rgba(255, 255, 255, 0.04);
  --scanline-opacity: 0;
  --glitch-intensity: 0;
  --crt-glow: none;
}

[data-theme="light"] {
  --bg: #ffffff;
  --bg-2: #fafafa;
  --bg-3: #f5f5f5;
  --panel: #ffffff;
  --panel-2: #fafafa;
  --border: #e5e5e5;
  --border-soft: #ededed;
  --border-strong: #d4d4d4;
  --fg: #0a0a0a;
  --fg-dim: #525252;
  --fg-faint: #a3a3a3;
  --accent-1: #0a0a0a;
  --accent-2: #000000;
  --accent-3: #6b8e00;
  --accent-4: #b87000;
  --success: #007a3d;
  --danger: #c01010;
  --grid: rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: 'Departure Mono', ui-monospace, 'IBM Plex Mono', monospace;
  background: var(--bg);
  color: var(--fg);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  background: var(--bg);
}

/* ===== fx layers ===== */
.fx-layer { position: fixed; inset: 0; pointer-events: none; z-index: 9990; }

.fx-grid {
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: 1;
}

.fx-scanlines {
  background: repeating-linear-gradient(
    0deg,
    rgba(0,0,0,var(--scanline-opacity)) 0px,
    rgba(0,0,0,var(--scanline-opacity)) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: multiply;
}

.fx-vignette {
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.4) 100%);
  mix-blend-mode: multiply;
  display: none;
}

[data-theme=""] .fx-vignette,
:root:not([data-theme="light"]) .fx-vignette { display: block; }

.fx-noise { display: none; }

/* glitch — fired only on tx events via .glitch-pulse */
@keyframes glitch-pulse {
  0%   { transform: translate(0); filter: none; }
  20%  { transform: translate(calc(var(--glitch-intensity) * -3px), 0); filter: hue-rotate(15deg) saturate(1.4); }
  40%  { transform: translate(calc(var(--glitch-intensity) * 4px), 0); filter: hue-rotate(-10deg); }
  60%  { transform: translate(calc(var(--glitch-intensity) * -2px), 0); }
  100% { transform: translate(0); filter: none; }
}
.app-shell.glitch-pulse { animation: glitch-pulse 0.32s steps(4, end); }

/* ===== typography ===== */
h1, h2, h3, h4 { font-weight: normal; letter-spacing: 0.02em; }
h1 { font-size: 28px; line-height: 1.1; letter-spacing: -0.01em; }
h2 { font-size: 18px; }
h3 { font-size: 14px; }

.label {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.hl   { color: var(--accent-3); }
.hl-2 { color: var(--accent-2); }
.hl-3 { color: var(--accent-3); }
.hl-4 { color: var(--accent-4); }
.dim  { color: var(--fg-dim); }
.faint{ color: var(--fg-faint); }

/* ===== boxes (clean Vercel cards, no clip-path) ===== */
.pixel-box {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
}
.pixel-box.lit { border-color: var(--border); }

.pixel-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
  background: var(--panel-2);
  border-radius: 4px 4px 0 0;
}

.pixel-box-header .dot {
  width: 6px; height: 6px;
  background: var(--accent-3);
  display: inline-block;
  margin-right: 8px;
  border-radius: 50%;
  vertical-align: middle;
}

.pixel-box-body { padding: 16px; }

/* ===== buttons ===== */
.btn {
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--panel);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 14px;
  cursor: pointer;
  border-radius: 4px;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  user-select: none;
}
.btn, .btn:hover, .btn:focus, .btn:active, .btn:visited { text-decoration: none; }
.btn:hover { border-color: var(--border-strong); background: var(--panel-2); }

.btn.primary {
  background: var(--accent-3);
  color: #000;
  border-color: var(--accent-3);
}
.btn.primary:hover { background: #d8ff40; border-color: #d8ff40; }

.btn.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--fg-dim);
}
.btn.ghost:hover { color: var(--fg); border-color: var(--border-strong); }

/* ===== health-bar / progress ===== */
.hbar {
  position: relative;
  height: 6px;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  overflow: hidden;
  border-radius: 2px;
}
.hbar > .fill {
  height: 100%;
  background: var(--accent-3);
  transition: width 0.4s ease;
}
.hbar.cyan > .fill   { background: var(--accent-1); }
.hbar.magenta > .fill{ background: #a78bfa; }
.hbar.amber > .fill  { background: var(--accent-4); }

/* ===== chips ===== */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--fg-dim);
  border-radius: 3px;
}
.chip.active   { color: var(--accent-3); border-color: rgba(200, 255, 0, 0.35); background: rgba(200, 255, 0, 0.06); }
.chip.cyan     { color: #50e3a4; border-color: rgba(80, 227, 164, 0.3); background: rgba(80, 227, 164, 0.06); }
.chip.magenta  { color: #a78bfa; border-color: rgba(167, 139, 250, 0.3); background: rgba(167, 139, 250, 0.06); }
.chip.amber    { color: var(--accent-4); border-color: rgba(255, 176, 0, 0.3); background: rgba(255, 176, 0, 0.06); }
.chip.danger   { color: var(--danger); border-color: rgba(255, 77, 77, 0.3); }

.chip .dot {
  width: 5px; height: 5px;
  background: currentColor;
  display: inline-block;
  border-radius: 50%;
}

/* ===== inputs ===== */
input, textarea, select {
  font-family: inherit;
  font-size: 12px;
  background: var(--panel-2);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 10px;
  width: 100%;
  outline: none;
  letter-spacing: 0.02em;
  border-radius: 3px;
}
input:focus, textarea:focus { border-color: var(--accent-3); }
input::placeholder, textarea::placeholder { color: var(--fg-faint); }

/* ===== layout ===== */
.app-shell {
  position: relative;
  min-height: 100vh;
  padding: 92px 32px 80px;
  z-index: 2;
}

.page { max-width: 1440px; margin: 0 auto; display: none; }
.page.active { display: block; }

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-soft);
}
.page-head h1 .bracket { color: var(--fg-faint); }
.page-head .sub {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-top: 6px;
}

/* ===== HUD nav ===== */
.hud {
  position: fixed;
  top: 12px; left: 12px; right: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 100;
  pointer-events: none;
  font-size: 11px;
  letter-spacing: 0.12em;
}
.hud > * { pointer-events: auto; }

.hud-logo {
  display: flex;
  align-items: center;
  gap: 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 10px 22px 10px 14px;
  border-radius: 4px;
}
.hud-logo canvas { width: 36px; height: 36px; display: block; }
.hud-logo .name { font-weight: normal; color: var(--fg); font-size: 12px; letter-spacing: 0.16em; }
.hud-logo .name .bracket { color: var(--fg-faint); }
.hud-logo .meta { font-size: 9px; color: var(--fg-faint); letter-spacing: 0.18em; margin-top: 2px; }

.hud-nav {
  display: flex;
  gap: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 4px;
  border-radius: 4px;
}
.hud-nav button {
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: transparent;
  color: var(--fg-dim);
  border: none;
  padding: 7px 13px;
  cursor: pointer;
  border-radius: 3px;
}
.hud-nav button.active { background: var(--fg); color: var(--bg); }
.hud-nav button:hover:not(.active) { color: var(--fg); }
.hud-nav .key {
  display: inline-block;
  width: 12px;
  text-align: center;
  color: var(--accent-3);
  margin-right: 4px;
}
.hud-nav button.active .key { color: var(--bg); opacity: 0.5; }

.hud-status {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 7px 14px;
  font-size: 10px;
  color: var(--fg-dim);
  border-radius: 4px;
}
.hud-status .stat { display: flex; align-items: center; gap: 6px; }
.hud-status .stat .dot {
  width: 6px; height: 6px;
  background: var(--accent-3);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

.theme-toggle {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px;
  display: flex;
  gap: 0;
}
.theme-toggle button {
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 0.14em;
  background: transparent;
  border: none;
  color: var(--fg-dim);
  padding: 6px 10px;
  cursor: pointer;
  border-radius: 3px;
  text-transform: uppercase;
}
.theme-toggle button.active { background: var(--fg); color: var(--bg); }

.hud-minimap {
  width: 80px;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 6px;
  border-radius: 4px;
}
.hud-minimap .mm-title { font-size: 8px; letter-spacing: 0.18em; color: var(--fg-faint); margin-bottom: 4px; }
.hud-minimap canvas { width: 100%; height: 48px; display: block; }

.hud-bottom {
  position: fixed;
  bottom: 10px; left: 12px; right: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--fg-faint);
  z-index: 100;
  pointer-events: none;
}
.hud-bottom > * {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 4px;
  pointer-events: auto;
}
.hud-bottom .health { display: flex; align-items: center; gap: 8px; }
.hud-bottom .health .hbar { width: 70px; }
.hud-bottom .ticker {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== scrollbar ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }

.row { display: flex; align-items: center; gap: 12px; }
.col { display: flex; flex-direction: column; gap: 12px; }
.between { display: flex; justify-content: space-between; align-items: center; }
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.kbd {
  display: inline-block;
  padding: 1px 6px;
  border: 1px solid var(--border);
  font-size: 9px;
  color: var(--fg-dim);
  background: var(--panel-2);
  border-radius: 2px;
}

.caret::after {
  content: "█";
  display: inline-block;
  margin-left: 2px;
  color: var(--accent-3);
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ===== preloader ===== */
#preloader {
  position: fixed; inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  flex-direction: column;
  gap: 28px;
}
#preloader.hidden { opacity: 0; pointer-events: none; transition: opacity 0.5s; }

#preloader .stage-frame {
  position: relative;
  width: min(680px, 90vw);
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 24px;
  border-radius: 4px;
}

#preloader .pl-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 10px; letter-spacing: 0.18em; color: var(--fg-dim);
  margin-bottom: 14px;
}

#preloader canvas#nesStage {
  width: 100%;
  height: 240px;
  display: block;
  image-rendering: pixelated;
  background: var(--bg-2);
  border: 1px solid var(--border-soft);
  border-radius: 2px;
}

#preloader .pl-progress { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
#preloader .pl-progress .row {
  justify-content: space-between;
  font-size: 10px;
  color: var(--fg-dim);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
#preloader .pl-log {
  margin-top: 14px;
  font-size: 10px;
  color: var(--fg-faint);
  height: 60px;
  overflow: hidden;
  letter-spacing: 0.04em;
}
#preloader .pl-log .ok   { color: var(--accent-3); }
#preloader .pl-log .info { color: var(--fg); }
#preloader .pl-log .warn { color: var(--accent-4); }