/* Wraith Run — a self-contained game space, same convention as Rune Merge
   and Ember Keep: no shared site.css/site.js, own palette, own type, own
   layout. Fits one viewport with no page-level scrolling. */

:root{
  --wr-bg:#0a0d10;
  --wr-bg-2:#10151a;
  --wr-panel:#141a1f;
  --wr-panel-2:#1a2129;
  --wr-line:rgba(255,255,255,.08);
  --wr-line-strong:rgba(255,255,255,.16);

  --wr-text:#e6eef0;
  --wr-text-dim:#94a8ad;
  --wr-text-faint:#5c6e72;

  --wr-spectral:#7fd8e8;
  --wr-spectral-hot:#b3ecf5;
  --wr-mist:#c7d6d9;

  --wr-font-display:"Cinzel",Georgia,"Times New Roman",serif;
  --wr-font-body:"Cormorant",Georgia,serif;
  --wr-font-mono:"Space Mono","Courier New",monospace;

  --wr-radius:6px;
}

*,*::before,*::after{box-sizing:border-box}

/* See Rune Merge's game.css for why this exists: a game's own unconditional
   `display` rules can silently outrank the browser's [hidden] default at
   equal specificity. This makes [hidden] always win instead. */
[hidden]{display:none!important}

html,body{height:100%}
html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--wr-bg);
  color:var(--wr-text);
  font-family:var(--wr-font-body);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
  position:relative;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* ---------- ambient background ---------- */

.wr-field{
  position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(60% 45% at 50% 0%,rgba(127,216,232,.14),transparent 60%),
    radial-gradient(55% 45% at 90% 100%,rgba(199,214,217,.06),transparent 65%),
    var(--wr-bg);
}
.wr-field::after{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- page shell ---------- */

.wr-shell{
  display:flex;
  flex-direction:column;
  height:100vh;
  height:100dvh;
}

/* ---------- brand strip ---------- */

.wr-brandbar{
  flex:0 0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;
  font-family:var(--wr-font-mono);
  font-size:12px;
  letter-spacing:.04em;
}
.wr-brandbar__brand{display:flex;align-items:center;gap:10px;color:var(--wr-text-dim);transition:color .3s ease}
.wr-brandbar__brand img{width:20px;height:20px;opacity:.85}
.wr-brandbar__brand:hover{color:var(--wr-text)}
.wr-brandbar__back{color:var(--wr-text-faint);transition:color .3s ease}
.wr-brandbar__back:hover{color:var(--wr-spectral-hot)}

/* ---------- banner (full-width, between brand strip and game — standard
   format per games-roadmap.md, same as Rune Merge's .rm-banner) ---------- */

.wr-banner{
  flex:0 0 auto;
  width:100%;
  background:rgba(0,0,0,.35);
  border-bottom:1px solid var(--wr-line);
  padding:12px 24px;
  text-align:center;
}
.wr-banner__title{margin:0}
.wr-banner__title img{
  display:inline-block;
  height:clamp(70px,10vw,130px);
  width:auto;
  filter:drop-shadow(0 0 18px rgba(127,216,232,.45)) drop-shadow(0 0 34px rgba(199,214,217,.2));
}

.wr-main{
  flex:1 1 auto;
  min-height:0;
  display:flex;
  flex-direction:column;
  max-width:1040px;
  width:100%;
  margin:0 auto;
  padding:12px 24px;
  overflow-y:auto; /* safety net on very short viewports; not the design target */
}

.wr-eyebrow{
  font-family:var(--wr-font-mono);
  font-size:10px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--wr-spectral-hot);
  margin:0 0 6px;
}

.wr-layout{
  flex:1 1 auto;
  min-height:0;
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:28px;
  align-items:stretch;
}

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

.wr-play{display:flex;flex-direction:column;min-height:0;height:100%}

.wr-hud{
  flex:0 0 auto;
  display:flex;gap:10px;margin-bottom:10px;flex-wrap:wrap;align-items:center;
}
.wr-stat{
  background:var(--wr-panel);
  border:1px solid var(--wr-line);
  border-radius:var(--wr-radius);
  padding:8px 16px;text-align:center;min-width:80px;
}
.wr-stat__label{
  font-family:var(--wr-font-mono);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--wr-text-faint);display:block;
}
.wr-stat__value{font-family:var(--wr-font-mono);font-weight:700;font-size:18px;color:var(--wr-spectral-hot)}

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

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;
  font-family:var(--wr-font-mono);
  font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  border:1px solid var(--wr-line-strong);
  border-radius:var(--wr-radius);
  color:var(--wr-text);
  background:transparent;
  cursor:pointer;
  transition:all .3s ease;
}
.btn:hover{border-color:var(--wr-spectral);color:var(--wr-spectral-hot);transform:translateY(-1px)}
.btn--primary{
  background:linear-gradient(180deg,var(--wr-spectral-hot),var(--wr-spectral));
  border-color:transparent;
  color:#04191d;
  box-shadow:0 10px 28px -12px rgba(127,216,232,.55);
}
.btn--primary:hover{color:#04191d;filter:brightness(1.1)}
.btn--ghost{border-color:var(--wr-line)}

/* ---------- canvas ---------- */

.wr-canvas-wrap{
  position:relative;
  flex:1 1 auto;
  min-height:0;
  aspect-ratio:2.2/1;
  max-height:100%;
  border:1px solid var(--wr-line-strong);
  border-radius:var(--wr-radius);
  overflow:hidden;
  background:var(--wr-bg-2);
}
#wr-canvas{display:block;width:100%;height:100%}

.wr-overlay{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:rgba(10,13,16,.72);
  backdrop-filter:blur(2px);
  text-align:center;
  padding:20px;
}
.wr-overlay__title{
  font-family:var(--wr-font-display);
  font-size:clamp(20px,3.4vw,30px);
  color:var(--wr-text);
  margin:0;
  text-shadow:0 0 18px rgba(127,216,232,.4);
}
.wr-overlay__hint{
  font-family:var(--wr-font-mono);
  font-size:12px;letter-spacing:.08em;
  color:var(--wr-text-dim);
  margin:0;
}

/* ---------- skins ---------- */

.wr-skins{
  flex:0 0 auto;
  display:flex;gap:10px;flex-wrap:wrap;align-items:center;
  margin-top:10px;
}
.wr-skin{
  width:30px;height:30px;
  border-radius:50%;
  border:2px solid var(--wr-line-strong);
  cursor:pointer;
  padding:0;
  position:relative;
  transition:transform .2s ease,border-color .2s ease;
}
.wr-skin:hover:not(:disabled){transform:scale(1.1)}
.wr-skin.is-selected{border-color:var(--wr-spectral-hot);box-shadow:0 0 0 2px rgba(127,216,232,.35)}
.wr-skin:disabled{opacity:.3;cursor:not-allowed}

/* ---------- leaderboard ---------- */

.wr-side{min-height:0;overflow-y:auto;padding-top:2px}
.wr-side__header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.wr-side__title{font-family:var(--wr-font-display);font-size:18px;margin:0 0 12px;color:var(--wr-text)}
.wr-side__close{
  display:none;background:none;border:0;color:var(--wr-text-faint);
  font-size:24px;line-height:1;cursor:pointer;padding:2px 4px;
}
.wr-side__close:hover{color:var(--wr-spectral-hot)}

.wr-hud__leaderboard-btn{display:none}

.leaderboard{
  background:var(--wr-panel);
  border:1px solid var(--wr-line);
  border-radius:var(--wr-radius);
  padding:4px 20px;
}
.leaderboard__row{
  display:flex;align-items:center;gap:14px;padding:10px 0;
  border-top:1px solid var(--wr-line);
  font-family:var(--wr-font-mono);font-size:13px;
}
.leaderboard__row:first-child{border-top:none}
.leaderboard__rank{color:var(--wr-spectral-hot);width:20px;flex:0 0 20px}
.leaderboard__name{letter-spacing:.12em;color:var(--wr-text);flex:1}
.leaderboard__score{color:var(--wr-text-dim)}
.leaderboard__empty{
  color:var(--wr-text-faint);font-family:var(--wr-font-body);
  font-style:italic;font-size:15px;padding:16px 0;
}

.score-entry{
  background:var(--wr-panel-2);
  border:1px solid var(--wr-line);
  border-left:2px solid var(--wr-spectral);
  border-radius:var(--wr-radius);
  padding:20px 18px;
  margin-top:8px;
  max-width:320px;
}
.score-entry p{margin:0 0 12px;color:var(--wr-text-dim);font-size:14px;font-style:italic}
.score-entry__row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:center}
.score-entry input{
  font-family:var(--wr-font-mono);
  font-size:19px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;text-align:center;
  width:112px;padding:11px 8px;
  background:var(--wr-bg-2);
  border:1px solid var(--wr-line-strong);
  border-radius:4px;color:var(--wr-text);
}
.score-entry input:focus{outline:2px solid var(--wr-spectral);outline-offset:2px}

/* ---------- how-to-play modal (shared component, skinned per game) ---------- */

.htp-overlay{
  position:fixed;inset:0;z-index:200;
  display:none;align-items:center;justify-content:center;
  padding:24px;
  background:rgba(10,13,16,.82);
  backdrop-filter:blur(3px);
}
.htp-panel{
  background:var(--wr-panel);
  border:1px solid var(--wr-line-strong);
  border-radius:var(--wr-radius);
  max-width:440px;width:100%;
  max-height:min(600px,90vh);
  overflow-y:auto;
  padding:26px 24px;
  box-shadow:0 24px 60px -20px rgba(0,0,0,.7);
}
.htp-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
.htp-title{font-family:var(--wr-font-display);font-size:21px;margin:0;color:var(--wr-text)}
.htp-close{background:none;border:0;color:var(--wr-text-faint);font-size:22px;line-height:1;cursor:pointer;padding:2px 4px}
.htp-close:hover{color:var(--wr-spectral-hot)}
.htp-section{margin-bottom:16px}
.htp-section:last-child{margin-bottom:0}
.htp-heading{
  font-family:var(--wr-font-mono);
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--wr-spectral-hot);
  margin:0 0 6px;
}
.htp-text{margin:0;color:var(--wr-text-dim);font-size:14px}

/* ---------- footer ---------- */

.wr-footer{
  flex:0 0 auto;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  max-width:1040px;width:100%;margin:0 auto;
  padding:8px 24px 12px;
  font-family:var(--wr-font-mono);
  font-size:11px;letter-spacing:.06em;
  color:var(--wr-text-faint);
}
.wr-footer a{transition:color .3s ease}
.wr-footer a:hover{color:var(--wr-spectral-hot)}

/* ---------- responsive ---------- */

@media (max-width:900px){
  .wr-layout{grid-template-columns:1fr}
  .wr-play{height:100%}

  .wr-hud__leaderboard-btn{display:inline-flex}

  .wr-footer{display:none}
  .wr-banner{display:none}

  .wr-side{
    position:fixed;inset:0;z-index:150;
    display:none;
    flex-direction:column;gap:16px;
    background:rgba(10,13,16,.96);
    backdrop-filter:blur(4px);
    padding:20px 20px calc(20px + env(safe-area-inset-bottom));
    overflow-y:auto;
  }
  .wr-side.is-open{display:flex}
  .wr-side__close{display:block}
}
@media (max-width:520px){
  .wr-brandbar{padding:12px 16px}
  .wr-brandbar__brand span{display:none}
  .wr-main{padding:6px 16px 10px}
  .wr-hud{gap:8px}
  .wr-stat{padding:6px 12px;min-width:66px}
  .btn{padding:8px 14px;font-size:10px}
}