/* ArtSpace wheel navigation — shared base styles (layout, a11y, toast).
   Each option file adds its own animation layer on top of this. */

:root {
  --ink: #1c1b22;
  --muted: #6b6a73;
  --line: #e7e5ea;
  --bg: #ffffff;
  --accent: #c1372f;
  --wheel-size: min(80vmin, 760px);
  --ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --ease-soft: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(120% 90% at 50% -10%, #fbfbfd 0%, #f3f2f6 60%, #eeecf2 100%);
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

.demo-head {
  display: flex; align-items: baseline; gap: .75rem; flex-wrap: wrap;
  padding: 1.1rem clamp(1rem, 4vw, 2.4rem) 0;
}
.demo-head .kicker {
  font-size: .72rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--muted); font-weight: 600;
}
.demo-head h1 { font-size: 1.1rem; margin: 0; font-weight: 700; letter-spacing: -.01em; }
.demo-head .back { margin-left: auto; font-size: .82rem; color: var(--muted); text-decoration: none; }
.demo-head .back:hover { color: var(--ink); }

/* ---- Stage: wheel + content panel ---- */
.stage {
  display: grid;
  grid-template-columns: minmax(0, var(--wheel-size)) minmax(260px, 28rem);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vh, 3rem) clamp(1rem, 4vw, 2.4rem) 3rem;
  min-height: calc(100dvh - 60px);
}
@media (max-width: 880px) {
  :root { --wheel-size: min(94vw, 560px); }   /* wheel fills (almost) the screen width */
  .stage {
    grid-template-columns: min(94vw, 560px);
    justify-items: center;
    gap: 1.5rem;
    padding: 0.75rem 0 3rem;                    /* no side padding so the wheel can be full width */
  }
  .panel { padding-inline: 1.1rem; }            /* keep the text readable inside the edge */
}

.wheel-wrap {
  position: relative;
  width: 100%;
  max-width: var(--wheel-size);
  aspect-ratio: 1;              /* height follows width, so the wheel can shrink to fit */
}
[data-wheel-svg] {
  width: 100%; height: 100%; display: block;
  overflow: visible;
  filter: drop-shadow(0 18px 40px rgba(30, 25, 45, .14));
}

/* slices (the focusable link) + their 3 ring pieces */
.slice { cursor: pointer; outline: none; transform-box: view-box; }
.slice image { pointer-events: auto; }
.piece { transform-box: view-box; }
/* invisible continuous hit target covering the whole slice incl. inter-piece gaps */
.slice-hit { fill: #000; fill-opacity: 0; pointer-events: all; }
.wedge-edge { fill: none; stroke: transparent; stroke-width: 0; pointer-events: none; }

/* focus ring that actually shows on an SVG group — outlines the focused slice's pieces */
.slice:focus-visible .wedge-edge {
  stroke: var(--ink); stroke-width: 4; stroke-dasharray: 6 5;
  stroke-linejoin: round;
}

/* centre overlay (sits over the white hole) */
.center {
  position: absolute; left: 50%; top: 49.7%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  font-size: .7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; color: var(--muted); text-align: center;
  max-width: 5.5rem; line-height: 1.15;
}

/* ---- Content panel ---- */
.panel { max-width: 30rem; }
/* right-hand image that changes per segment; all layers preloaded, crossfaded */
.wheel-images {
  position: relative; width: 100%; aspect-ratio: 3 / 2;
  border-radius: 14px; overflow: hidden; margin-bottom: 1.15rem;
  background: #efedf3;
  box-shadow: 0 12px 32px -16px rgba(30, 25, 45, .45);
}
.wheel-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0; transition: opacity .3s var(--ease-soft);
}
.wheel-img.active { opacity: 1; }
/* cross-fade the headline + description whenever the armed slice changes */
.panel.swap .eyebrow, .panel.swap h2, .panel.swap p.lead { animation: swapIn .34s var(--ease-soft) both; }
.panel.swap h2 { animation-delay: .02s; }
.panel.swap p.lead { animation-delay: .05s; }
@keyframes swapIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.panel .eyebrow {
  font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  font-weight: 700; color: var(--accent); margin: 0 0 .5rem;
  transition: color .3s var(--ease-soft);
}
.panel h2 {
  font-size: clamp(1.6rem, 4.4vw, 2.4rem); line-height: 1.08;
  letter-spacing: -.02em; margin: 0 0 .7rem; font-weight: 700;
}
.panel p.lead { font-size: 1.02rem; line-height: 1.55; color: #3f3e47; margin: 0 0 1.4rem; }
.panel .cta {
  display: inline-flex; align-items: center; gap: .4rem;
  font-weight: 600; font-size: .95rem; text-decoration: none;
  color: #fff; background: var(--accent);
  padding: .6rem 1.05rem; border-radius: 999px;
  transition: transform .2s var(--ease-spring), background .3s, box-shadow .3s;
  box-shadow: 0 6px 18px -6px var(--accent);
}
.panel .cta:hover { transform: translateY(-1px); }
[data-wheel-root]:not(.is-armed) .cta { opacity: .3; pointer-events: none; }
[data-wheel-root].is-armed .cta { opacity: 1; pointer-events: auto; }

.panel .hint {
  margin-top: 1.1rem; font-size: .8rem; color: var(--muted);
  display: flex; align-items: center; gap: .5rem;
}
.panel .hint kbd {
  font: inherit; font-size: .72rem; background: #fff; border: 1px solid var(--line);
  border-bottom-width: 2px; border-radius: 5px; padding: .05rem .35rem;
}

/* ---- Toast (stands in for real navigation) ---- */
.wheel-toast {
  position: fixed; left: 50%; bottom: 2rem; transform: translate(-50%, 1.5rem);
  background: var(--toast, #222); color: #fff; font-weight: 600;
  padding: .7rem 1.2rem; border-radius: 999px; font-size: .95rem;
  box-shadow: 0 12px 30px -8px rgba(0, 0, 0, .5);
  opacity: 0; pointer-events: none; z-index: 50;
}
.wheel-toast.show {
  animation: toast-pop 1.5s var(--ease-soft) forwards;
}
@keyframes toast-pop {
  0% { opacity: 0; transform: translate(-50%, 1.5rem); }
  14% { opacity: 1; transform: translate(-50%, 0); }
  80% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, -.5rem); }
}

/* subtle whole-wheel acknowledgement on open */
[data-wheel-root].opening [data-wheel-svg] { animation: wheel-ack .6s var(--ease-soft); }
@keyframes wheel-ack { 40% { transform: scale(.985); } }

/* ---- Reduced motion ---- */
[data-wheel-root].reduced * {
  transition-duration: .001ms !important;
  animation-duration: .001ms !important;
}