/* Glass Harp — No. 110
 * Cold glass, a pool of light, water. Self-contained. */

:root {
  --bg: #05070f;
  --ink: #eaf4ff;
  --glass: #8fd4f0;
  --line: rgba(234, 244, 255, 0.14);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

#canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

/* ------------------------------------------------------------------ frame */

.frame { position: fixed; inset: 0; pointer-events: none; z-index: 6; }
.frame__corner {
  position: absolute;
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: rgba(234, 244, 255, 0.26);
}
.frame__corner--tl { top: max(14px, env(safe-area-inset-top)); left: max(16px, env(safe-area-inset-left)); }
/* the sound toggle owns the top-right corner, so the toy name stops short of it */
.frame__corner--tr { top: max(14px, env(safe-area-inset-top)); right: calc(max(16px, env(safe-area-inset-right)) + 44px); }
.frame__corner--bl { bottom: max(14px, env(safe-area-inset-bottom)); left: max(16px, env(safe-area-inset-left)); pointer-events: auto; }
.frame__corner--bl a { color: inherit; text-decoration: none; transition: color 0.18s ease; }
.frame__corner--bl a:hover { color: var(--glass); }
.frame__corner--bl a:focus-visible { outline: 2px solid var(--glass); outline-offset: 3px; }

/* --------------------------------------------------------------- overlays */

/* Not a modal. An instrument should be playable the instant it loads, so this
   is a title that steps aside on the first touch rather than a gate. */
.intro {
  position: fixed;
  top: 18%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  pointer-events: none;
  text-align: center;
  padding: 0 20px;
  width: 100%;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.intro.is-gone { opacity: 0; transform: translateX(-50%) translateY(-14px); }
.intro__title {
  margin: 0 0 10px;
  font-size: clamp(30px, 7vw, 52px);
  font-weight: 300;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-shadow: 0 0 48px rgba(143, 212, 240, 0.42);
}
.intro__text {
  margin: 0;
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(234, 244, 255, 0.42);
  line-height: 1.9;
}

.readout {
  position: fixed;
  z-index: 6;
  margin: 0;
  transform: translate(-50%, -100%);
  pointer-events: none;
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: rgba(8, 19, 36, 0.86);
  border: 1px solid rgba(143, 212, 240, 0.34);
  border-radius: 999px;
  padding: 4px 10px;
  text-shadow: 0 0 18px rgba(143, 212, 240, 0.6);
}
.readout[hidden] { display: none; }

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

.sound-btn {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  right: max(14px, env(safe-area-inset-right));
  z-index: 7;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: rgba(8, 19, 36, 0.74);
  border: 1px solid var(--line);
  border-radius: 50%;
  color: rgba(234, 244, 255, 0.8);
  font-size: 14px;
  cursor: pointer;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: color 0.18s ease, border-color 0.18s ease;
}
.sound-btn:hover { color: var(--glass); border-color: var(--glass); }
.sound-btn:focus-visible { outline: 2px solid var(--glass); outline-offset: 3px; }
.sound-btn[aria-pressed="false"] { color: rgba(234, 244, 255, 0.28); }

.reset-btn {
  position: fixed;
  top: calc(max(12px, env(safe-area-inset-top)) + 44px);
  right: max(14px, env(safe-area-inset-right));
  z-index: 7;
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(8, 19, 36, 0.74);
  color: rgba(234, 244, 255, 0.72);
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  transition: color 0.18s ease, border-color 0.18s ease;
}
.reset-btn:hover { color: var(--ink); border-color: var(--glass); }
.reset-btn:focus-visible { outline: 2px solid var(--glass); outline-offset: 3px; }

/* -------------------------------------------------- shared-badge docking
 * The rank runs the full width, so the default right-centre badges land on the
 * last glass's bowl and swallow taps meant for it. Dock them bottom-right,
 * below the table line where only reflection sits. */
.opt-tipjar.opt-tipjar { top: auto; bottom: max(14px, env(safe-area-inset-bottom)); transform: none; }
.opt-fs.opt-fs { top: auto; bottom: calc(max(14px, env(safe-area-inset-bottom)) + 54px); transform: none; }
.opt-tipjar.opt-tipjar.tj-nudge { animation: none; }

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

@media (max-width: 560px) {
  .intro { top: 13%; }
  .intro__text { font-size: 9.5px; letter-spacing: 0.1em; }
  .frame__corner--tr { display: none; }
}
@media (max-height: 520px) {
  .intro { top: 8%; }
  .intro__title { font-size: clamp(22px, 6vh, 32px); }
}

@media (prefers-reduced-motion: reduce) {
  .intro { transition: opacity 0.2s ease; }
  .sound-btn, .reset-btn { transition: none; }
}