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

:root{
  --hd-bg:#0b0710;
  --hd-bg-2:#120b1a;
  --hd-panel:#170f22;
  --hd-panel-2:#1d1329;
  --hd-line:rgba(255,255,255,.08);
  --hd-line-strong:rgba(255,255,255,.16);

  --hd-text:#e8e2ee;
  --hd-text-dim:#a898b8;
  --hd-text-faint:#6b5c7c;

  --hd-accent:#8f6fff;
  --hd-accent-hot:#b79bff;
  --hd-bone:#d8cdb8;
  --hd-toxic:#7de07a;
  --hd-danger:#e2607a;
  --hd-ember:#e0973f;

  --hd-font-display:"Cinzel",Georgia,"Times New Roman",serif;
  --hd-font-body:"IM Fell English",Georgia,serif;
  --hd-font-mono:"Space Mono","Courier New",monospace;

  --hd-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(--hd-bg);
  color:var(--hd-text);
  font-family:var(--hd-font-body);
  font-size:18px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
  position:relative;
}

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

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

.hd-field{
  position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(55% 45% at 50% 0%,rgba(143,111,255,.16),transparent 60%),
    radial-gradient(50% 40% at 85% 100%,rgba(125,224,122,.06),transparent 65%),
    var(--hd-bg);
}
.hd-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 ---------- */

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

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

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

/* ---------- banner (full-width, standard format per games-roadmap.md) ---------- */

.hd-banner{
  flex:0 0 auto;
  width:100%;
  background:rgba(0,0,0,.35);
  border-bottom:1px solid var(--hd-line);
  padding:12px 24px;
  text-align:center;
}
.hd-banner__title{margin:0}
.hd-banner__title img{
  display:inline-block;
  height:clamp(70px,10vw,130px);
  width:auto;
  filter:drop-shadow(0 0 18px rgba(143,111,255,.45)) drop-shadow(0 0 34px rgba(125,224,122,.18));
}

.hd-main{
  flex:1 1 auto;
  min-height:0;
  display:flex;
  flex-direction:column;
  max-width:1320px;
  width:100%;
  margin:0 auto;
  padding:14px 28px;
  overflow-y:auto; /* safety net on very short viewports; not the design target */
}

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

.hd-layout{
  flex:1 1 auto;
  min-height:0;
  display:grid;
  grid-template-columns:1.7fr .9fr;
  gap:32px;
  align-items:stretch;
}

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

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

.hd-hud{
  flex:0 0 auto;
  display:flex;gap:10px;margin-bottom:10px;flex-wrap:wrap;align-items:center;
}
.hd-stat{
  background:linear-gradient(180deg,var(--hd-panel-2),var(--hd-panel));
  border:1px solid var(--hd-line);
  border-top-color:var(--hd-line-strong);
  border-radius:var(--hd-radius);
  padding:8px 18px;text-align:center;min-width:76px;
  box-shadow:0 6px 16px -10px rgba(0,0,0,.7);
}
.hd-stat__label{
  font-family:var(--hd-font-mono);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--hd-text-faint);display:block;
}
.hd-stat__label::before{margin-right:.4em;opacity:.8}
.hd-stat__value{font-family:var(--hd-font-mono);font-weight:700;font-size:19px;color:var(--hd-accent-hot);text-shadow:0 0 12px rgba(143,111,255,.35)}
.hd-stat--depth .hd-stat__label::before{content:"▼"}
.hd-stat--best .hd-stat__label::before{content:"★"}
.hd-stat--hp .hd-stat__label::before{content:"♥"}
.hd-stat--hp .hd-stat__value{color:var(--hd-danger);text-shadow:0 0 12px rgba(226,96,122,.4)}
.hd-stat--gold .hd-stat__label::before{content:"●"}
.hd-stat--gold .hd-stat__value{color:var(--hd-ember);text-shadow:0 0 12px rgba(224,151,63,.4)}

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

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;
  font-family:var(--hd-font-mono);
  font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  border:1px solid var(--hd-line-strong);
  border-radius:var(--hd-radius);
  color:var(--hd-text);
  background:transparent;
  cursor:pointer;
  transition:all .3s ease;
}
.btn:hover{border-color:var(--hd-accent);color:var(--hd-accent-hot);transform:translateY(-1px)}
.btn--primary{
  background:linear-gradient(180deg,var(--hd-accent-hot),var(--hd-accent));
  border-color:transparent;
  color:#140a24;
  box-shadow:0 10px 28px -12px rgba(143,111,255,.55);
}
.btn--primary:hover{color:#140a24;filter:brightness(1.1)}
.btn--ghost{border-color:var(--hd-line)}

/* ---------- canvas + dungeon area ---------- */

.hd-canvas-wrap{
  position:relative;
  flex:1 1 auto;
  min-height:280px;
  border:1px solid var(--hd-line-strong);
  border-radius:var(--hd-radius);
  overflow:hidden;
  background:var(--hd-bg-2);
  box-shadow:
    0 30px 70px -30px rgba(0,0,0,.8),
    inset 0 0 0 1px rgba(143,111,255,.06),
    inset 0 0 90px rgba(0,0,0,.55);
}
/* vignette + corner glow, purely decorative — sits above the canvas but
   below the dpad/overlay (z-index) so it never intercepts input */
.hd-canvas-wrap::before{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  z-index:1;
  background:
    radial-gradient(120% 90% at 50% 110%,rgba(125,224,122,.10),transparent 55%),
    radial-gradient(140% 100% at 50% 50%,transparent 55%,rgba(0,0,0,.55) 100%);
}
#hd-canvas{display:block;width:100%;height:100%}

.hd-overlay{
  position:absolute;inset:0;
  z-index:3;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  background:rgba(11,7,16,.82);
  backdrop-filter:blur(2px);
  text-align:center;
  padding:20px;
  overflow-y:auto; /* safety net: a long game-over line + unlock form must never clip invisibly */
}
.hd-overlay__title{
  font-family:var(--hd-font-display);
  font-size:clamp(16px,2.4vw,24px);
  color:var(--hd-text);
  margin:0;
  text-shadow:0 0 18px rgba(143,111,255,.4);
}
.hd-overlay__hint{
  font-family:var(--hd-font-mono);
  font-size:12px;letter-spacing:.06em;
  color:var(--hd-text-dim);
  margin:0;
  max-width:360px;
  line-height:1.7;
}

/* ---------- message log ---------- */

.hd-log{
  flex:0 0 auto;
  margin-top:12px;
  padding:9px 16px;
  background:linear-gradient(180deg,var(--hd-panel-2),var(--hd-panel));
  border:1px solid var(--hd-line);
  border-left:2px solid var(--hd-accent);
  border-radius:var(--hd-radius);
  box-shadow:0 6px 16px -10px rgba(0,0,0,.7);
  font-family:var(--hd-font-body);
  font-style:italic;
  font-size:15px;
  color:var(--hd-text-dim);
  min-height:1.6em;
}

/* ---------- d-pad (docked in the canvas's own corner, not a separate
   row — keeps the whole canvas free to grow into the rest of the
   viewport instead of losing a fixed slice of height to it) ---------- */

.hd-dpad{
  position:absolute;
  right:14px;bottom:14px;
  z-index:2;
  display:grid;
  grid-template-columns:repeat(3,34px);
  grid-template-rows:repeat(3,34px);
  gap:3px;
  padding:6px;
  background:rgba(11,7,16,.55);
  border:1px solid var(--hd-line);
  border-radius:8px;
  backdrop-filter:blur(2px);
}
.hd-dpad button{
  background:var(--hd-panel);
  border:1px solid var(--hd-line-strong);
  border-radius:4px;
  color:var(--hd-text-dim);
  font-family:var(--hd-font-mono);
  font-size:14px;
  cursor:pointer;
  transition:all .2s ease;
}
.hd-dpad button:hover{border-color:var(--hd-accent);color:var(--hd-accent-hot)}
.hd-dpad button:active{transform:scale(.9)}
.hd-dpad__up{grid-column:2;grid-row:1}
.hd-dpad__left{grid-column:1;grid-row:2}
.hd-dpad__right{grid-column:3;grid-row:2}
.hd-dpad__down{grid-column:2;grid-row:3}

/* ---------- loadouts ---------- */

.hd-loadouts{
  flex:0 0 auto;
  display:flex;gap:10px;flex-wrap:wrap;align-items:stretch;
  margin-top:12px;
}
.hd-loadout{
  display:flex;flex-direction:column;gap:3px;
  min-width:118px;
  padding:8px 14px;
  border-radius:var(--hd-radius);
  border:1px solid var(--hd-line-strong);
  background:linear-gradient(180deg,var(--hd-panel-2),var(--hd-panel));
  text-align:left;
  cursor:pointer;
  transition:all .2s ease;
}
.hd-loadout:hover:not(:disabled){border-color:var(--hd-accent);transform:translateY(-1px)}
.hd-loadout.is-selected{border-color:var(--hd-accent-hot);box-shadow:0 0 0 2px rgba(143,111,255,.25),0 6px 16px -8px rgba(143,111,255,.4)}
.hd-loadout:disabled{opacity:.4;cursor:not-allowed}
.hd-loadout__name{
  font-family:var(--hd-font-mono);
  font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--hd-text);
}
.hd-loadout.is-selected .hd-loadout__name{color:var(--hd-accent-hot)}
.hd-loadout__desc{
  font-family:var(--hd-font-body);
  font-style:italic;
  font-size:12.5px;
  color:var(--hd-text-faint);
}

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

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

.hd-hud__leaderboard-btn{display:none}

.leaderboard{
  background:linear-gradient(180deg,var(--hd-panel-2),var(--hd-panel));
  border:1px solid var(--hd-line);
  border-radius:var(--hd-radius);
  padding:4px 20px;
  box-shadow:0 20px 50px -30px rgba(0,0,0,.8);
}
.leaderboard__row{
  display:flex;align-items:center;gap:14px;padding:10px 0;
  border-top:1px solid var(--hd-line);
  font-family:var(--hd-font-mono);font-size:13px;
}
.leaderboard__row:first-child{border-top:none}
.leaderboard__rank{color:var(--hd-accent-hot);width:20px;flex:0 0 20px}
.leaderboard__name{letter-spacing:.12em;color:var(--hd-text);flex:1}
.leaderboard__score{color:var(--hd-text-dim)}
.leaderboard__empty{
  color:var(--hd-text-faint);font-family:var(--hd-font-body);
  font-style:italic;font-size:15px;padding:16px 0;
}

.score-entry{
  background:var(--hd-panel-2);
  border:1px solid var(--hd-line);
  border-left:2px solid var(--hd-accent);
  border-radius:var(--hd-radius);
  padding:20px 18px;
  margin-top:8px;
  max-width:320px;
}
.score-entry p{margin:0 0 12px;color:var(--hd-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(--hd-font-mono);
  font-size:19px;font-weight:700;letter-spacing:.3em;text-transform:uppercase;text-align:center;
  width:112px;padding:11px 8px;
  background:var(--hd-bg-2);
  border:1px solid var(--hd-line-strong);
  border-radius:4px;color:var(--hd-text);
}
.score-entry input:focus{outline:2px solid var(--hd-accent);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(11,7,16,.82);
  backdrop-filter:blur(3px);
}
.htp-panel{
  background:var(--hd-panel);
  border:1px solid var(--hd-line-strong);
  border-radius:var(--hd-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(--hd-font-display);font-size:21px;margin:0;color:var(--hd-text)}
.htp-close{background:none;border:0;color:var(--hd-text-faint);font-size:22px;line-height:1;cursor:pointer;padding:2px 4px}
.htp-close:hover{color:var(--hd-accent-hot)}
.htp-section{margin-bottom:16px}
.htp-section:last-child{margin-bottom:0}
.htp-heading{
  font-family:var(--hd-font-mono);
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--hd-accent-hot);
  margin:0 0 6px;
}
.htp-text{margin:0;color:var(--hd-text-dim);font-size:14px}

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

.hd-footer{
  flex:0 0 auto;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  max-width:1320px;width:100%;margin:0 auto;
  padding:8px 24px 12px;
  font-family:var(--hd-font-mono);
  font-size:11px;letter-spacing:.06em;
  color:var(--hd-text-faint);
}
.hd-footer a{transition:color .3s ease}
.hd-footer a:hover{color:var(--hd-accent-hot)}

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

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

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

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

  .hd-side{
    position:fixed;inset:0;z-index:150;
    display:none;
    flex-direction:column;gap:16px;
    background:rgba(11,7,16,.96);
    backdrop-filter:blur(4px);
    padding:20px 20px calc(20px + env(safe-area-inset-bottom));
    overflow-y:auto;
  }
  .hd-side.is-open{display:flex}
  .hd-side__close{display:block}
}
@media (max-width:520px){
  .hd-brandbar{padding:12px 16px}
  .hd-brandbar__brand span{display:none}
  .hd-main{padding:6px 16px 10px}
  .hd-hud{gap:8px}
  .hd-stat{padding:6px 12px;min-width:60px}
  .btn{padding:8px 14px;font-size:10px}
  .hd-dpad{right:8px;bottom:8px;grid-template-columns:repeat(3,30px);grid-template-rows:repeat(3,30px)}
  .hd-loadout{min-width:96px;padding:7px 10px}
}