/* Page chrome and menus. The game itself draws to canvas; everything here is
   the frame around it. Dark glass, thin rules, magenta and cyan. */

:root {
  --pink: #ff3da8;
  --pink-dim: #a3246b;
  --cyan: #44e0f0;
  --gold: #ffc23d;
  --bg: #06070d;
  --panel: rgba(10, 13, 21, 0.82);
  --line: rgba(120, 160, 190, 0.22);
  --text: #dce7f2;
  --dim: rgba(198, 216, 232, 0.55);
  --font: "Rajdhani", "DIN Alternate", "Oswald", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
  touch-action: none;
}

canvas { display: block; position: fixed; inset: 0; }
#view { width: 100%; height: 100%; background: #000; }
#hud { pointer-events: none; z-index: 5; }
.hidden { display: none !important; }

/* --- boot and loading ---------------------------------------------------- */

#boot, #loading {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(255, 61, 168, 0.10), transparent 60%),
    radial-gradient(90% 80% at 50% 110%, rgba(68, 224, 240, 0.10), transparent 60%),
    var(--bg);
  text-align: center;
}

#boot h1, #loading h2 {
  font-size: clamp(28px, 6vw, 54px);
  letter-spacing: 0.34em;
  margin: 0 0 10px;
  font-weight: 700;
  text-shadow: 0 0 30px rgba(255, 61, 168, 0.55);
}

#boot p, #loading p { color: var(--dim); letter-spacing: 0.22em; font-size: 13px; margin: 0; }
#boot .err { color: var(--pink); max-width: 520px; line-height: 1.6; letter-spacing: 0.06em; }

.load-inner { width: min(440px, 78vw); }

.load-mark { width: 74px; margin: 0 auto 22px; }
.load-mark svg { width: 100%; display: block; }
.load-mark polygon {
  fill: none;
  stroke: var(--pink);
  stroke-width: 2.5;
  opacity: 0.85;
  filter: drop-shadow(0 0 10px rgba(255, 61, 168, 0.7));
  transform-origin: 50% 50%;
  animation: spin 9s linear infinite;
}
.load-mark polygon:last-child {
  stroke: var(--cyan);
  animation-direction: reverse;
  animation-duration: 6s;
  filter: drop-shadow(0 0 10px rgba(68, 224, 240, 0.7));
}
@keyframes spin { to { transform: rotate(360deg); } }

.load-bar {
  margin-top: 20px;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.load-bar i {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--pink), var(--cyan));
  box-shadow: 0 0 14px rgba(255, 61, 168, 0.8);
  transition: width 0.25s ease;
}

/* --- menus --------------------------------------------------------------- */

#menu {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: max(20px, env(safe-area-inset-top)) 20px;
  background:
    radial-gradient(130% 100% at 50% -10%, rgba(255, 61, 168, 0.13), transparent 62%),
    radial-gradient(110% 90% at 50% 115%, rgba(68, 224, 240, 0.11), transparent 60%),
    rgba(3, 4, 9, 0.9);
  backdrop-filter: blur(7px);
  overflow-y: auto;
}

.panel {
  width: min(660px, 94vw);
  background: var(--panel);
  border: 1px solid var(--line);
  /* Clipped corners rather than rounded ones: it reads as machined. */
  clip-path: polygon(26px 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%, 0 26px);
  padding: clamp(24px, 4vw, 42px);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
  animation: rise 0.28s ease;
}
@keyframes rise { from { opacity: 0; transform: translateY(14px); } }

.heading h1 {
  margin: 0 0 6px;
  font-size: clamp(24px, 4vw, 36px);
  letter-spacing: 0.24em;
  font-weight: 700;
}
.heading p { margin: 0 0 22px; color: var(--dim); letter-spacing: 0.12em; font-size: 14px; }

/* Title screen */

.logo { text-align: center; margin-bottom: 30px; }
.logo-mark { width: 96px; margin: 0 auto 18px; }
.logo-mark svg { width: 100%; display: block; }
.logo-mark .ring { fill: none; stroke-width: 2.4; transform-origin: 50% 50%; }
.logo-mark .outer {
  stroke: var(--pink);
  filter: drop-shadow(0 0 12px rgba(255, 61, 168, 0.75));
  animation: spin 22s linear infinite;
}
.logo-mark .mid {
  stroke: var(--cyan);
  filter: drop-shadow(0 0 10px rgba(68, 224, 240, 0.7));
  animation: spin 15s linear infinite reverse;
}
.logo-mark .inner {
  stroke: var(--gold);
  filter: drop-shadow(0 0 10px rgba(255, 194, 61, 0.7));
  animation: spin 9s linear infinite;
}

.logo h1 {
  margin: 0;
  font-size: clamp(30px, 7vw, 60px);
  letter-spacing: 0.2em;
  line-height: 0.98;
  font-weight: 700;
  text-shadow: 0 0 34px rgba(255, 61, 168, 0.5);
}
.logo h1 span {
  display: block;
  background: linear-gradient(90deg, var(--pink), var(--cyan) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.logo .tag {
  margin: 14px 0 0;
  color: var(--dim);
  letter-spacing: 0.16em;
  font-size: clamp(11px, 1.5vw, 13px);
  text-transform: uppercase;
}

.nav { display: flex; flex-direction: column; gap: 10px; }

.btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  letter-spacing: 0.2em;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: background 0.16s, border-color 0.16s, transform 0.12s;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
.btn .hex {
  width: 9px;
  height: 10px;
  background: var(--line);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  flex: none;
  transition: background 0.16s, box-shadow 0.16s;
}
.btn .label { flex: 1; }
.btn .note {
  color: var(--dim);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: none;
}
.btn:hover:not(:disabled), .btn:focus-visible:not(:disabled) {
  background: rgba(255, 61, 168, 0.1);
  border-color: rgba(255, 61, 168, 0.55);
  outline: none;
  transform: translateX(3px);
}
.btn:hover .hex, .btn:focus-visible .hex {
  background: var(--pink);
  box-shadow: 0 0 12px var(--pink);
}
.btn.primary { border-color: rgba(255, 61, 168, 0.45); background: rgba(255, 61, 168, 0.08); }
.btn.primary .hex { background: var(--pink); box-shadow: 0 0 10px rgba(255, 61, 168, 0.8); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; }

.foot {
  margin: 22px 0 0;
  text-align: center;
  color: rgba(198, 216, 232, 0.35);
  font-size: 11px;
  letter-spacing: 0.12em;
}

/* Chapter select */

.chapter-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }

.chapter {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
  text-align: left;
  transition: background 0.16s, border-color 0.16s;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.chapter:hover:not(:disabled) {
  background: rgba(68, 224, 240, 0.08);
  border-color: rgba(68, 224, 240, 0.5);
}
.chapter .num {
  font-size: 22px;
  font-weight: 700;
  color: var(--pink);
  width: 30px;
  text-align: center;
  flex: none;
}
.chapter .body { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.chapter .body strong { letter-spacing: 0.18em; font-size: 15px; font-weight: 600; }
.chapter .body em { color: var(--dim); font-style: normal; font-size: 12px; letter-spacing: 0.06em; }
.chapter .state { color: var(--cyan); font-size: 11px; letter-spacing: 0.18em; }
.chapter.locked { opacity: 0.38; }
.chapter.locked .state { color: var(--dim); }

/* Settings */

.rows { display: flex; flex-direction: column; gap: 4px; margin-bottom: 22px; }

.slider {
  display: grid;
  grid-template-columns: 1fr 180px 56px;
  align-items: center;
  gap: 14px;
  padding: 11px 4px;
  border-bottom: 1px solid rgba(120, 160, 190, 0.1);
}
.slider .name { letter-spacing: 0.16em; font-size: 12px; color: var(--dim); }
.slider .value { text-align: right; font-size: 13px; color: var(--cyan); letter-spacing: 0.06em; }
.slider.toggle, .slider:has(.group) { grid-template-columns: 1fr auto; }

.slider input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.14);
  outline: none;
}
.slider input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--pink);
  box-shadow: 0 0 10px rgba(255, 61, 168, 0.9);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  cursor: pointer;
}
.slider input[type=range]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: none;
  background: var(--pink);
  box-shadow: 0 0 10px rgba(255, 61, 168, 0.9);
  cursor: pointer;
}

.group { display: flex; gap: 6px; }
.pill {
  padding: 7px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  color: var(--dim);
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: all 0.16s;
}
.pill.on {
  background: rgba(68, 224, 240, 0.14);
  border-color: rgba(68, 224, 240, 0.6);
  color: var(--cyan);
}

/* Controls and prose */

.controls { display: flex; flex-direction: column; margin-bottom: 18px; }
.crow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 4px;
  border-bottom: 1px solid rgba(120, 160, 190, 0.1);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--dim);
}
.crow kbd {
  font-family: inherit;
  color: var(--gold);
  letter-spacing: 0.1em;
  background: rgba(255, 194, 61, 0.08);
  border: 1px solid rgba(255, 194, 61, 0.28);
  padding: 3px 10px;
  font-size: 11px;
}

.prose { margin-bottom: 22px; }
.prose p { line-height: 1.72; color: rgba(214, 228, 240, 0.82); font-size: 14px; letter-spacing: 0.02em; }
.prose .dim { color: var(--dim); font-size: 12px; }
.prose strong { color: var(--pink); font-weight: 600; }

/* --- touch controls ------------------------------------------------------ */

#touch { position: fixed; inset: 0; z-index: 8; pointer-events: none; }
#touch .tpad {
  position: absolute;
  bottom: max(18px, env(safe-area-inset-bottom));
  display: flex;
  gap: 10px;
  align-items: flex-end;
  pointer-events: none;
}
#touch .tpad.right { right: 16px; flex-direction: row-reverse; flex-wrap: wrap-reverse; max-width: 46vw; justify-content: flex-start; }
#touch .tpad.left { left: 16px; flex-direction: column; }

.tbtn {
  pointer-events: auto;
  width: 60px;
  height: 60px;
  background: rgba(8, 12, 20, 0.55);
  border: 1px solid rgba(120, 160, 190, 0.35);
  color: rgba(220, 235, 245, 0.85);
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.08em;
  font-weight: 600;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  backdrop-filter: blur(3px);
}
.tbtn:active { background: rgba(255, 61, 168, 0.28); border-color: var(--pink); }
.tbtn.big {
  width: 88px;
  height: 88px;
  font-size: 13px;
  border-color: rgba(255, 61, 168, 0.5);
  color: var(--pink);
}
.tbtn.corner {
  position: absolute;
  top: max(14px, env(safe-area-inset-top));
  right: 14px;
  width: 44px;
  height: 44px;
  clip-path: none;
  border-radius: 3px;
}

@media (max-width: 560px) {
  .slider { grid-template-columns: 1fr 110px 48px; gap: 8px; }
  .panel { padding: 22px 18px; }
}