/* The page's frame round the game: the loading state, the panels the core
   describes (title, pause), the lines over the game, and messages. Colours
   follow Protection of the Spheres' warm haze and plum ink (data/look.json:
   horizon, zenith, ink). */
:root {
  --ink: #2b2140;
  --ink-soft: #5d5470;
  --paper: #fbf5e9;
  --paper-edge: #e9dcc2;
  --haze: #ecdcc0;
  --sky: #689ad6;
  --accent: #d9774a;
  --accent-deep: #b65a33;
  --glass: rgba(251, 245, 233, 0.94);
  --shadow: 0 18px 50px rgba(43, 33, 64, 0.28), 0 2px 6px rgba(43, 33, 64, 0.18);
}
* { box-sizing: border-box; }
/* A display rule elsewhere must not show what the page hid. */
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; overflow: hidden; }
body {
  background: linear-gradient(180deg, var(--sky) 0%, #a9c3df 48%, var(--haze) 100%);
  color: var(--ink);
  font: 16px/1.45 ui-rounded, "SF Pro Rounded", "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}
#view {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: var(--haze);
}
body[data-ready="false"] #view { visibility: hidden; }

#loading {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  color: var(--ink);
  font-weight: 650;
  letter-spacing: 0.02em;
  font-size: 18px;
}
.dots { display: flex; gap: 10px; }
.dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  box-shadow: 0 2px 0 var(--paper-edge);
  animation: bob 1.1s ease-in-out infinite;
}
.dots span:nth-child(2) { animation-delay: 0.15s; }
.dots span:nth-child(3) { animation-delay: 0.3s; }
@keyframes bob { 0%, 100% { transform: translateY(0); opacity: 0.6; } 50% { transform: translateY(-8px); opacity: 1; } }

#overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(43, 33, 64, 0.06) 0%, rgba(43, 33, 64, 0.28) 100%);
}
body[data-screen="title"] #overlay {
  align-items: flex-end;
  justify-content: flex-start;
  padding: 0 0 9vh 7vw;
  background: linear-gradient(90deg, rgba(43, 33, 64, 0.22) 0%, rgba(43, 33, 64, 0) 55%);
}
.panel {
  min-width: 320px;
  max-width: 420px;
  padding: 30px 34px 26px;
  border-radius: 26px;
  background: var(--glass);
  border: 2px solid var(--paper-edge);
  box-shadow: var(--shadow);
  animation: rise 0.35s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}
@keyframes rise { from { transform: translateY(14px) scale(0.98); opacity: 0; } to { transform: none; opacity: 1; } }
.panel h1 {
  margin: 0 0 18px;
  font-size: 30px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: 0.04em;
}
#title h1 {
  font-size: 46px;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-shadow: 0 2px 0 var(--paper-edge);
}
.panel h2 {
  margin: 22px 0 8px;
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.panel p { margin: 0 0 14px; }
.panel button {
  display: block;
  width: 100%;
  padding: 14px 22px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fffaf0;
  font: inherit;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.06em;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--accent-deep), 0 8px 18px rgba(182, 90, 51, 0.35);
  transition: transform 0.08s ease, box-shadow 0.08s ease, filter 0.15s ease;
}
.panel button:hover { filter: brightness(1.06); }
.panel button:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--accent-deep), 0 4px 10px rgba(182, 90, 51, 0.3); }
.panel button:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; }
table.controls { width: 100%; border-collapse: collapse; }
table.controls td { padding: 5px 0; vertical-align: middle; }
table.controls td:first-child { width: 46%; }
kbd {
  display: inline-block;
  min-width: 30px;
  padding: 3px 9px;
  border-radius: 8px;
  background: #fffdf8;
  border: 1.5px solid var(--paper-edge);
  box-shadow: 0 2px 0 var(--paper-edge);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}

#hud { position: fixed; inset: auto 0 5vh 0; display: flex; justify-content: center; pointer-events: none; }
.hud-item {
  margin: 0;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(43, 33, 64, 0.55);
  color: #fffaf0;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.03em;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.hud-item.shown { opacity: 1; }
body:not([data-screen="play"]) #hud { display: none; }
/* M5: the story's line near the top, the prompt for E above the hint, and
   the fade to dark over everything (the core says when; the page eases it) */
#hud-story { position: fixed; top: 15vh; left: 50%; transform: translateX(-50%); max-width: 70vw; text-align: center; font-size: 19px; padding: 11px 24px; }
#hud-prompt { position: fixed; bottom: calc(5vh + 52px); left: 50%; transform: translateX(-50%); transition: opacity 0.25s ease; }
/* M7 (T10): the swing cue's word, small and faint below the middle of the
   view while the left button chooses a cut */
#hud-swing { position: fixed; top: 61vh; left: 50%; transform: translateX(-50%); font-size: 13px; padding: 5px 13px; background: rgba(43, 33, 64, 0.35); transition: opacity 0.15s ease; }
#hud-swing.shown { opacity: 0.85; }
#hud-swing:empty { display: none; }
/* M7: the dark comes on slowly then sinks (an ease-in over the core's 80
   ticks, 1.33 s), and lifts quickly then settles (an ease-out), as waking
   does; the story's line drifts down a little as it comes */
#hud-veil { position: fixed; inset: 0; margin: 0; padding: 0; border-radius: 0; background: #1b1530; transition: opacity 1.4s cubic-bezier(0.2, 0.6, 0.35, 1); }
#hud-veil.shown { transition: opacity 1.33s cubic-bezier(0.5, 0, 0.75, 0.3); }
#hud-story { transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1); transform: translate(-50%, -10px); }
#hud-story.shown { transform: translate(-50%, 0); }

#message:empty { display: none; }
#message {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  max-width: 520px;
  margin: 0;
  padding: 26px 30px;
  border-radius: 22px;
  background: var(--glass);
  border: 2px solid var(--paper-edge);
  box-shadow: var(--shadow);
  font-weight: 600;
}
[data-term] { text-decoration: underline dotted rgba(43, 33, 64, 0.45); text-underline-offset: 3px; cursor: help; }
/* a short window: the panel keeps inside it */
.panel { max-height: calc(100vh - 32px); overflow: auto; }
@media (max-height: 640px) {
  .panel { padding: 18px 22px 16px; }
  #title h1 { font-size: 32px; margin-bottom: 12px; }
  .panel h2 { margin-top: 12px; }
  table.controls td { padding: 2px 0; }
  body[data-screen="title"] #overlay { padding: 0 0 3vh 4vw; }
}