/* ============================================================================
   WHITEHOT — style.css
   Minimalist white, brutalist black type, arterial red accents.
   ========================================================================== */

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

:root {
  --ink: #17181c;
  --hot: #f23a2e;
  --ghost: #8a939c;
  --paper: #f2f4f6;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--paper);
  font-family: -apple-system, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  color: var(--ink);
  user-select: none;
  -webkit-user-select: none;
}

#app, #app canvas { position: fixed; inset: 0; display: block; }

.hidden { display: none !important; }

/* ============================== HUD ===================================== */

#hud { position: fixed; inset: 0; pointer-events: none; z-index: 10; }

.hud-corner {
  position: absolute;
  display: flex; flex-direction: column; gap: 6px;
  font-weight: 800; font-size: 13px; letter-spacing: 0.14em;
  text-shadow: 0 0 6px rgba(255,255,255,0.9);
}
.hud-corner.tl { top: 22px; left: 26px; }
.hud-corner.tr { top: 22px; right: 26px; align-items: flex-end; }
.hud-corner.br { bottom: 22px; right: 26px; align-items: flex-end; }
.hud-corner.bl { bottom: 22px; left: 26px; }

#hud-level { color: var(--ink); }
#hud-hostiles { color: var(--ghost); font-size: 12px; }
#hud-hostiles i { color: var(--hot); font-style: normal; letter-spacing: 2px; }

#hud-score {
  font-size: 30px; font-weight: 900; letter-spacing: 0.02em;
  font-family: 'Arial Black', 'Helvetica Neue', sans-serif;
}
#hud-combo {
  color: var(--hot); font-size: 15px; opacity: 0;
  transform: scale(0.8); transition: opacity .15s, transform .15s;
}
#hud-combo.on { opacity: 1; transform: scale(1); animation: combopop .25s; }
@keyframes combopop { 0% { transform: scale(1.6); } 100% { transform: scale(1); } }

#hud-weapon { font-size: 15px; font-weight: 900; letter-spacing: 0.18em; }
#hud-ammo { color: var(--hot); font-size: 13px; letter-spacing: 4px; min-height: 16px; }
#hud-ammo .empty { color: var(--hot); letter-spacing: 0.12em; font-size: 11px; animation: blink 1s infinite; }
#hud-ammo.flash { animation: ammoflash 0.4s; }
@keyframes ammoflash { 0%, 66% { opacity: 1; } 33%, 100% { opacity: 0.15; } }
@keyframes blink { 0%, 60% { opacity: 1; } 61%, 100% { opacity: 0.25; } }

#time-bar {
  width: 150px; height: 4px; background: #d9dee2;
  overflow: hidden;
}
#time-fill {
  width: 100%; height: 100%;
  background: var(--hot);
  transform-origin: left center;
  transform: scaleX(0.05);
}
#time-label { font-size: 10px; color: var(--ghost); letter-spacing: 0.3em; }

/* ============================ CROSSHAIR ================================== */

#crosshair {
  position: fixed; left: 50%; top: 50%; width: 0; height: 0;
  pointer-events: none; z-index: 11;
}
#crosshair .dot {
  position: absolute; left: -2px; top: -2px; width: 4px; height: 4px;
  background: var(--ink); border-radius: 50%;
  box-shadow: 0 0 4px rgba(255,255,255,0.8);
}
#crosshair .tick {
  position: absolute; background: var(--ink);
  box-shadow: 0 0 3px rgba(255,255,255,0.7);
  transition: transform 0.12s ease-out, background 0.12s;
}
#crosshair .tick.t { left: -1px; top: -14px; width: 2px; height: 7px; }
#crosshair .tick.b { left: -1px; top: 7px;  width: 2px; height: 7px; }
#crosshair .tick.l { left: -14px; top: -1px; width: 7px; height: 2px; }
#crosshair .tick.r { left: 7px;  top: -1px; width: 7px; height: 2px; }

#crosshair[data-mode="pickup"] .dot,
#crosshair[data-mode="pickup"] .tick { background: var(--hot); }
#crosshair[data-mode="pickup"] .tick.t { transform: translateY(-3px); }
#crosshair[data-mode="pickup"] .tick.b { transform: translateY(3px); }
#crosshair[data-mode="pickup"] .tick.l { transform: translateX(-3px); }
#crosshair[data-mode="pickup"] .tick.r { transform: translateX(3px); }
#crosshair[data-mode="none"] { display: none; }

#crosshair.pulse .tick.t { animation: cht .16s; }
#crosshair.pulse .tick.b { animation: chb .16s; }
#crosshair.pulse .tick.l { animation: chl .16s; }
#crosshair.pulse .tick.r { animation: chr .16s; }
@keyframes cht { 50% { transform: translateY(-5px); } }
@keyframes chb { 50% { transform: translateY(5px); } }
@keyframes chl { 50% { transform: translateX(-5px); } }
@keyframes chr { 50% { transform: translateX(5px); } }

#ch-label {
  position: absolute; left: 50%; top: 18px; transform: translateX(-50%);
  font-size: 11px; font-weight: 900; letter-spacing: 0.16em;
  color: var(--hot); white-space: nowrap;
  text-shadow: 0 0 6px rgba(255,255,255,0.9);
}

#hitmark {
  position: fixed; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font-size: 26px; font-weight: 900; color: var(--hot);
  opacity: 0; pointer-events: none; z-index: 12;
}
#hitmark.on { animation: hitpop 0.22s ease-out; }
@keyframes hitpop {
  0% { opacity: 1; transform: translate(-50%,-50%) scale(1.5); }
  100% { opacity: 0; transform: translate(-50%,-50%) scale(0.8); }
}

/* ======================== FLASHES / WORDS ================================ */

#vignette { position: fixed; inset: 0; pointer-events: none; z-index: 9; }
#vignette.on { animation: danger 0.5s ease-out; }
@keyframes danger {
  0% { box-shadow: inset 0 0 18vmin rgba(242, 58, 46, 0.85); }
  100% { box-shadow: inset 0 0 8vmin rgba(242, 58, 46, 0); }
}

#killword {
  position: fixed; left: 50%; top: 38%;
  transform: translate(-50%, -50%);
  font-family: 'Arial Black', 'Helvetica Neue', sans-serif;
  font-weight: 900; font-size: clamp(44px, 8.5vw, 104px);
  letter-spacing: 0.04em; color: var(--hot);
  text-shadow: 0 0 26px rgba(255,255,255,0.95), 0 4px 0 rgba(23,24,28,0.08);
  opacity: 0; pointer-events: none; z-index: 13; white-space: nowrap;
}
#killword.on { animation: killpop 0.85s cubic-bezier(.2,.9,.3,1); }
@keyframes killpop {
  0%   { opacity: 0; transform: translate(-50%,-50%) scale(1.7); }
  12%  { opacity: 1; transform: translate(-50%,-50%) scale(1); }
  70%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%,-50%) scale(0.94); }
}

#popups { position: fixed; inset: 0; pointer-events: none; z-index: 12; }
.popup {
  position: absolute; left: 0; top: 0;
  font-weight: 900; font-size: 15px; letter-spacing: 0.08em;
  color: var(--ink); white-space: nowrap;
  text-shadow: 0 0 8px rgba(255,255,255,0.95);
}
.popup.score { color: var(--hot); font-size: 17px; }
.popup.bonus { color: var(--ink); font-size: 13px; }
.popup.small { color: var(--ghost); font-size: 12px; }

#msg {
  position: fixed; left: 50%; bottom: 18%;
  transform: translateX(-50%);
  font-weight: 900; font-size: 17px; letter-spacing: 0.22em;
  color: var(--ink); text-align: center; white-space: nowrap;
  opacity: 0; pointer-events: none; z-index: 12;
  text-shadow: 0 0 10px rgba(255,255,255,0.95);
}
#msg.on { animation: msgfade 2.6s ease-in-out; }
@keyframes msgfade {
  0% { opacity: 0; transform: translateX(-50%) translateY(8px); }
  10%, 78% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; }
}

#fps {
  display: none;
  position: fixed; top: 8px; left: 50%; transform: translateX(-50%);
  font-size: 12px; font-weight: 700; color: var(--ghost); z-index: 30;
}
.show-fps #fps { display: block; }

/* =========================== LETTERBOX ================================== */

#letterbox { position: fixed; inset: 0; pointer-events: none; z-index: 14; }
#letterbox .bar {
  position: absolute; left: 0; right: 0; height: 11vh; background: #0c0d0f;
}
#letterbox .bar.top { top: 0; }
#letterbox .bar.bot { bottom: 0; }
#replay-tag {
  position: absolute; right: 28px; top: 50%; transform: translateY(-50%);
  color: #fff; font-size: 12px; font-weight: 800; letter-spacing: 0.24em;
  animation: blink 1.2s infinite;
}

/* ============================ OVERLAYS =================================== */

.overlay {
  position: fixed; inset: 0; z-index: 20;
  display: flex; align-items: center; justify-content: center;
  background: rgba(244, 246, 248, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow-y: auto;
}

.panel { text-align: center; padding: 40px 24px; max-width: 980px; width: 100%; }

.title {
  font-family: 'Arial Black', 'Helvetica Neue', sans-serif;
  font-weight: 900; font-size: clamp(64px, 13vw, 150px);
  letter-spacing: -0.02em; line-height: 0.95; color: var(--ink);
}
.title .hot { color: var(--hot); }

.tagline {
  margin-top: 10px; font-size: 14px; font-weight: 800;
  letter-spacing: 0.42em; color: var(--ghost);
}

.menu-total { margin-top: 14px; font-weight: 900; color: var(--hot); letter-spacing: 0.2em; font-size: 13px; min-height: 16px; }

.big {
  font-family: 'Arial Black', 'Helvetica Neue', sans-serif;
  font-weight: 900; font-size: clamp(48px, 9vw, 110px);
  letter-spacing: -0.01em; color: var(--ink);
}
.big.red { color: var(--hot); }

/* level grid */
#level-grid {
  margin: 34px auto 8px;
  display: grid; gap: 12px;
  grid-template-columns: repeat(5, minmax(120px, 168px));
  justify-content: center;
}
@media (max-width: 900px) { #level-grid { grid-template-columns: repeat(3, 1fr); } }

.level-btn {
  display: flex; flex-direction: column; gap: 5px;
  padding: 16px 14px; text-align: left;
  background: #fff; border: 3px solid var(--ink);
  font-family: inherit; cursor: pointer;
  transition: transform .08s, background .12s, color .12s;
}
.level-btn:hover:not(.locked) { background: var(--ink); color: #fff; transform: translateY(-3px); }
.level-btn:hover:not(.locked) .lv-num { color: var(--hot); }
.level-btn.locked { opacity: 0.35; cursor: default; border-color: var(--ghost); }
.lv-num { font-size: 26px; font-weight: 900; color: var(--hot); font-family: 'Arial Black', sans-serif; }
.lv-name { font-size: 14px; font-weight: 900; letter-spacing: 0.1em; }
.lv-best { font-size: 10px; font-weight: 700; letter-spacing: 0.12em; color: var(--ghost); }

.controls-grid {
  margin: 26px auto 0; max-width: 760px;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em; color: var(--ghost);
}
.controls-grid b { color: var(--ink); margin-right: 5px; }

.menu-foot {
  margin-top: 30px; display: flex; align-items: center; justify-content: center; gap: 18px;
}
.credit { font-size: 11px; color: var(--ghost); letter-spacing: 0.14em; font-weight: 700; }

/* buttons */
.btn-row { margin-top: 34px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  font-family: inherit; font-weight: 900; font-size: 14px;
  letter-spacing: 0.12em; padding: 14px 26px;
  background: transparent; color: var(--ink);
  border: 3px solid var(--ink); cursor: pointer;
  transition: background .1s, color .1s, transform .08s;
}
.btn:hover { background: var(--ink); color: #fff; transform: translateY(-2px); }
.btn.primary { background: var(--hot); border-color: var(--hot); color: #fff; }
.btn.primary:hover { background: #d42418; border-color: #d42418; }
.btn.small { padding: 9px 16px; font-size: 11px; }

/* death & clear */
.death-cause {
  margin-top: 12px; font-size: 20px; font-weight: 900;
  letter-spacing: 0.5em; color: var(--ink);
}
.death-tip {
  margin: 26px auto 0; max-width: 520px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.12em;
  color: var(--ghost); line-height: 1.7;
}

.stats { margin: 30px auto 0; max-width: 420px; }
.stats .row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 9px 4px; border-bottom: 2px solid rgba(23,24,28,0.08);
  font-size: 13px; font-weight: 800; letter-spacing: 0.12em; color: var(--ghost);
}
.stats .row b { color: var(--ink); font-size: 17px; letter-spacing: 0.04em; }
.stats .row b i { color: var(--ghost); font-size: 11px; font-style: normal; }
.stats .row.total { border-bottom: none; margin-top: 6px; }
.stats .row.total b { color: var(--hot); font-size: 24px; font-family: 'Arial Black', sans-serif; }
.stats .row b em {
  font-style: normal; font-size: 10px; color: #fff; background: var(--hot);
  padding: 3px 7px; margin-left: 8px; letter-spacing: 0.18em; vertical-align: middle;
}