/* Layout is generated from the Figma file at its 1280px design width,
   then scaled to fit the browser window by script.js. */
:root {
  --jp: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --scale: 1;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: linear-gradient(90deg, #95cdff, #d2ebff);
  font-family: 'DM Sans', var(--jp), sans-serif;
  overflow-x: hidden;
  transition: background 0.3s ease;
  -webkit-font-smoothing: antialiased;
}

#viewport {
  position: relative;
  width: calc(1280px * var(--scale));
  height: calc(9000px * var(--scale));
  margin: 0 auto;
  overflow: hidden;
}

#stage {
  position: absolute;
  top: 0;
  left: 0;
  width: 1280px;
  height: 9000px;
  transform: scale(var(--scale));
  transform-origin: 0 0;
}

/* ---------- Pages (pop color / original color) ---------- */
.frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur, 300ms) ease, visibility 0s linear var(--dur, 300ms);
}
.frame.active {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--dur, 300ms) ease, visibility 0s;
}

/* ---------- Generic Figma layers ---------- */
.n {
  position: absolute;
  left: 0;
  top: 0;
  margin: 0;
  transform-origin: 0 0;
}
.t {
  white-space: pre-wrap;
  overflow-wrap: break-word;
  font-weight: inherit;
}
h2.t { font-weight: 900; }

/* ---------- Interactive components (variants) ---------- */
.instance > .variant {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur, 0ms) ease, visibility 0s linear var(--dur, 0ms);
}
.instance > .variant.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity var(--dur, 0ms) ease, visibility 0s;
}
.variant[role="button"] { cursor: pointer; }
.variant[role="button"]:focus { outline: none; }
.variant[role="button"]:focus-visible { outline: 4px solid #1a1a1a; outline-offset: 6px; }

/* Card hover feedback: lift the card slightly */
.instance:has(> .variant[role="button"]) {
  transition: translate 0.25s ease;
}
.instance:has(> .variant[role="button"]):hover { translate: 0 -6px; }

/* Hover-swap portrait: crossfade both images while hovering */
.instance.has-hover > .variant { pointer-events: auto; }

/* ---------- Color toggle switch (iOS style, as in Figma) ----------
   One toggle for the whole site. It starts in its Figma spot under the title,
   then pins to the top of the screen while scrolling (positioned by script.js). */
#color-toggle {
  position: fixed;
  z-index: 100;
  left: 50%;
  top: 0;
  width: 64px;
  height: 28px;
  transform-origin: 50% 0;
  transform: translateX(-50%) scale(var(--toggle-scale, 1));
}
#color-toggle.floating {
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.85), 0 6px 18px rgba(0, 0, 0, 0.25);
}
.toggle {
  border: 0;
  padding: 0;
  border-radius: 100px;
  background: rgba(120, 120, 128, 0.16);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
  cursor: pointer;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}
.toggle span {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 38px;
  height: 24px;
  border-radius: 100px;
  background: #fff;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15), 0 3px 1px rgba(0, 0, 0, 0.06);
  transition: transform 0.25s ease;
}
.toggle.on { background: #34c759; }
.toggle.on span { transform: translateX(22px); }
.toggle:focus-visible { outline: 3px solid #1a1a1a; outline-offset: 4px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0ms !important; }
  .instance:has(> .variant[role="button"]):hover { translate: none; }
}