/* ZOMBIE NIGHT — screens and HUD. The game itself is drawn on the canvas. */

:root {
  --bone: #e6e1d6;
  --bone-dim: #9c978c;
  --ink: #07090b;
  --band: rgba(7, 9, 11, 0.86);
  --line: rgba(230, 225, 214, 0.14);
  --blood: #b8352a;
  --amber: #d9a441;
  --head: "Arial Narrow", "Roboto Condensed", "Liberation Sans Narrow", "DejaVu Sans Condensed", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Consolas, "DejaVu Sans Mono", "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--head);
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#game {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
  touch-action: none;
}

body.in-play #game { cursor: none; }

.hidden { display: none !important; }

/* ---------- screens ---------- */

.screen {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  /* darken the edges so the band reads, keep the middle of the world visible */
  background: radial-gradient(ellipse at center, rgba(4, 6, 9, 0.15) 0%, rgba(4, 6, 9, 0.7) 100%);
  z-index: 10;
}

.screen.active { display: flex; animation: screen-in 0.22s ease-out; }

@keyframes screen-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* a full-width strip instead of a floating card */
.band {
  width: 100%;
  padding: 34px 16px 30px;
  background: var(--band);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
}

.band-wide { padding: 26px 16px 24px; }

.title {
  margin: 0;
  font-size: clamp(54px, 9vw, 104px);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 0.95;
  font-stretch: condensed;
}

.title span { color: var(--blood); }

.heading {
  margin: 0 0 8px;
  font-size: 34px;
  font-weight: 700;
  letter-spacing: 0.14em;
  font-stretch: condensed;
}

.heading.big { font-size: clamp(44px, 6vw, 68px); letter-spacing: 0.1em; margin-bottom: 6px; }
.heading.dead { color: var(--blood); }

.kicker {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.3em;
  color: var(--bone-dim);
}

.tagline {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.42em;
  color: var(--bone-dim);
}

.stat {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--bone-dim);
}

.stat b { color: var(--bone); font-weight: 700; }

.reward {
  margin: 4px 0 0;
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.note {
  margin: 12px 0 0;
  min-height: 1em;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: #6f6b63;
}

.note:empty { display: none; }

.newbest {
  margin-left: 8px;
  padding: 2px 6px;
  font-size: 11px;
  color: var(--ink);
  background: var(--amber);
  letter-spacing: 0.16em;
}

.hint {
  margin: 26px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #6f6b63;
}

/* ---------- buttons ---------- */

.buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 22px;
}

.buttons.stack { flex-direction: column; align-items: center; }

.btn, .toggle {
  min-width: 200px;
  padding: 12px 22px;
  font-family: var(--head);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--bone);
  background: transparent;
  border: 1px solid rgba(230, 225, 214, 0.38);
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.12s, color 0.12s, border-color 0.12s;
}

.btn:hover, .btn:focus-visible, .toggle:hover, .toggle:focus-visible {
  background: var(--bone);
  color: var(--ink);
  border-color: var(--bone);
  outline: none;
}

.btn.primary { border-color: var(--blood); background: var(--blood); color: #f4efe6; }
.btn.primary:hover, .btn.primary:focus-visible { background: #d4473a; border-color: #d4473a; color: #fff; }

.btn:disabled {
  cursor: not-allowed;
  color: #6f6b63;
  border-color: rgba(230, 225, 214, 0.12);
  background: transparent;
}

.toggles {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

.toggle {
  width: 300px;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.14em;
}

.toggle b { color: var(--amber); }
.toggle b.off { color: #6f6b63; }
.toggle:hover b, .toggle:focus-visible b { color: inherit; }

/* ---------- upgrades ---------- */

.upg-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  max-width: 760px;
  margin: 0 auto 8px;
}

.upg-head .heading { margin: 0; }

.upg-coins {
  margin: 0;
  font-family: var(--mono);
  font-size: 16px;
  letter-spacing: 0.12em;
  color: var(--bone-dim);
}

.upg-coins b { color: var(--amber); }

.upg-list { max-width: 760px; margin: 0 auto; text-align: left; }

.upg-row {
  display: grid;
  grid-template-columns: 1fr 120px 190px;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.upg-row:last-child { border-bottom: 1px solid var(--line); }

.upg-name { font-size: 19px; font-weight: 700; letter-spacing: 0.12em; }

.upg-level {
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--bone-dim);
}

.pips { display: inline-flex; gap: 3px; margin-left: 8px; vertical-align: middle; }
.pip { width: 10px; height: 4px; background: rgba(230, 225, 214, 0.15); }
.pip.on { background: var(--amber); }

.upg-effect {
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--bone);
}

.upg-effect i { font-style: normal; color: var(--bone-dim); }

.upg-cost {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--amber);
  text-align: right;
}

.upg-cost.poor { color: #6f6b63; }

.upg-row .btn { min-width: 0; width: 100%; padding: 10px 8px; font-size: 14px; }
.upg-row .btn:disabled { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; }

/* ---------- HUD ---------- */

#hud { position: fixed; inset: 0; pointer-events: none; z-index: 5; }

.hud-corner {
  position: absolute;
  font-family: var(--mono);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.9);
}

.hud-tl { top: 18px; left: 22px; }
.hud-tr { top: 18px; right: 22px; }
.hud-bl { bottom: 20px; left: 22px; display: flex; align-items: center; gap: 10px; }
.hud-br { bottom: 20px; right: 22px; text-align: right; }

.hud-wave { font-family: var(--head); font-size: 26px; font-weight: 700; letter-spacing: 0.16em; }
.hud-sub { margin-top: 2px; font-size: 13px; letter-spacing: 0.16em; color: var(--bone-dim); }

.hud-coins { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: var(--amber); }

.ico { width: 16px; height: 16px; flex: none; }
.ico-lg { width: 22px; height: 22px; }

.hp { width: 190px; }

.hp-bar {
  height: 8px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(230, 225, 214, 0.22);
}

#hud-hpfill {
  height: 100%;
  width: 100%;
  background: #c23a2e;
  transition: width 0.15s linear;
}

#hud-hpfill.low { animation: hp-pulse 0.7s ease-in-out infinite alternate; }

@keyframes hp-pulse { to { background: #ff5a48; } }

.hp-text { margin-top: 5px; font-size: 16px; font-weight: 700; letter-spacing: 0.06em; }

.ammo { display: flex; align-items: center; justify-content: flex-end; gap: 8px; font-size: 17px; font-weight: 700; }
.ammo .mag { font-size: 30px; }
.ammo .mag.empty { color: var(--blood); }
.ammo .sep { color: var(--bone-dim); }

.hud-reload {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--amber);
}

/* touch controls: only on coarse pointers */
.touch-btn {
  display: none;
  position: absolute;
  width: 56px;
  height: 56px;
  pointer-events: auto;
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--bone);
  background: rgba(7, 9, 11, 0.55);
  border: 1px solid rgba(230, 225, 214, 0.3);
  border-radius: 50%;
}

.touch-reload { right: 24px; bottom: 96px; }
.touch-pause { top: 70px; right: 22px; width: 42px; height: 42px; font-size: 13px; }

@media (pointer: coarse) {
  .touch-btn { display: block; }
  .hint { display: none; }
}

/* ---------- smaller screens ---------- */

@media (max-height: 640px) {
  .band { padding: 20px 16px; }
  .buttons { margin-top: 14px; }
  .upg-row { padding: 8px 0; }
}

@media (max-width: 720px) {
  .upg-row { grid-template-columns: 1fr 80px 110px; gap: 10px; }
  .btn, .toggle { min-width: 160px; }
  .toggle { width: 100%; max-width: 300px; }
  .hp { width: 130px; }
}