/* Chord Harp — No. 111
 * Violet dusk, filaments of light. Self-contained. */

:root {
  --bg: #0a0913;
  --ink: #ece8ff;
  --violet: #a896ff;
  --line: rgba(236, 232, 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(236, 232, 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(--violet); }
.frame__corner--bl a:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; }

/* ----------------------------------------------------------------- intro */

/* A title that steps aside on first touch, not a gate — an instrument should
   be playable the instant it loads. */
.intro {
  position: fixed;
  top: 5%;
  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(28px, 6.4vw, 46px);
  font-weight: 300;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-shadow: 0 0 48px rgba(168, 150, 255, 0.5);
}
.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(236, 232, 255, 0.42);
  line-height: 1.9;
}

/* ------------------------------------------------------------ sound button */

.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(18, 16, 31, 0.74);
  border: 1px solid var(--line);
  border-radius: 50%;
  color: rgba(236, 232, 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(--violet); border-color: var(--violet); }
.sound-btn:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; }
.sound-btn[aria-pressed="false"] { color: rgba(236, 232, 255, 0.28); }

/* ------------------------------------------------------------- chord bars */

.bars {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(max(14px, env(safe-area-inset-bottom)) + 16px);
  z-index: 7;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
  padding: 0 16px;
  max-width: 100%;
}

.bar {
  appearance: none;
  min-width: 58px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(38, 34, 62, 0.92) 0%, rgba(20, 18, 34, 0.92) 100%);
  color: rgba(236, 232, 255, 0.66);
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  cursor: pointer;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.07);
  transition: color 0.16s ease, transform 0.1s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}
.bar:hover { color: var(--ink); border-color: rgba(168, 150, 255, 0.5); }
.bar:active { transform: translateY(2px); }
.bar:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; }
.bar.is-on {
  color: #150f2e;
  background: linear-gradient(180deg, #d8ccff 0%, #a896ff 60%, #7d68e0 100%);
  border-color: rgba(216, 204, 255, 0.7);
  box-shadow: 0 8px 22px rgba(125, 104, 224, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* -------------------------------------------------- shared-badge docking
 * The string field spans the full width and the chord bars own the bottom
 * strip, so the badges stay right-edge but ride above the bars. */
.opt-tipjar.opt-tipjar { top: auto; bottom: calc(max(14px, env(safe-area-inset-bottom)) + 84px); transform: none; }
.opt-fs.opt-fs { top: auto; bottom: calc(max(14px, env(safe-area-inset-bottom)) + 138px); transform: none; }
.opt-tipjar.opt-tipjar.tj-nudge { animation: none; }

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

@media (max-width: 560px) {
  .intro { top: 4%; }
  .intro__text { font-size: 9.5px; letter-spacing: 0.1em; }
  .frame__corner--tr { display: none; }
  .bar { min-width: 50px; padding: 11px 12px; font-size: 12px; }
}
@media (max-height: 520px) {
  .intro { top: 2%; }
  .intro__title { font-size: clamp(20px, 5.5vh, 30px); margin-bottom: 4px; }
  .bar { padding: 8px 12px; }
}

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