/*
 * pa-ui.css — shared chrome for Prothom Alo hero games.
 * App bar, icon buttons, bottom sheets, buttons, focus ring.
 * Colour comes from pa-tokens.css; nothing here hardcodes a hex.
 */

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--pa-paper);
  color: var(--pa-ink);
  font-family: var(--pa-sans);
  font-size: var(--pa-size-body);
  line-height: var(--pa-leading-body);
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

button { font: inherit; color: inherit; background: none; border: 0; margin: 0; padding: 0; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--pa-chrome);
  outline-offset: 2px;
  border-radius: var(--pa-r-sm);
}

.pa-sr {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- masthead --------------------------------------------------------
   A newspaper head, not an app bar: the title set at display scale on the
   left against a spot-red rule, dateline running beneath it. Shared by all
   five hero games. */

.pa-masthead {
  padding-top: env(safe-area-inset-top, 0px);
  background: var(--pa-paper-lift);
}
.pa-masthead .pa-iconbtn { width: 2.5rem; height: 2.5rem; }
/* Three tracks, outer two equal, so the nameplate is optically centred no
   matter how many controls sit either side of it. A newspaper's nameplate
   is centred; an app bar's title is not. */
.pa-masthead__top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--pa-s-1);
  padding-inline: var(--pa-s-1);
}
.pa-masthead__lead,
.pa-masthead__tail {
  display: flex;
  align-items: center;
  gap: var(--pa-s-1);
  min-width: 0;
}
.pa-masthead__lead { justify-self: start; }
.pa-masthead__tail { justify-self: end; }
.pa-masthead__title {
  min-width: 0;
  text-align: center;
  margin: 0;
  font-family: var(--pa-serif);
  font-weight: 700;
  font-size: var(--pa-size-masthead);
  line-height: 1.1;
  letter-spacing: -0.015em;
}
.pa-masthead__timer {
  flex: none;
  padding-inline-end: var(--pa-s-1);
  font-family: var(--pa-serif);
  font-weight: 400;
  font-size: var(--pa-size-title);
  font-variant-numeric: tabular-nums;
  color: var(--pa-ink-2);
}
.pa-masthead__timer.is-done { color: var(--pa-red); font-weight: 700; }
.pa-masthead__rule {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--pa-s-3);
  margin-inline: var(--pa-s-3);
  padding-block-end: 2px;
  border-block-end: 2px solid var(--pa-red);
}
.pa-masthead__date {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 2px 0.25rem 2px 0;
  font-size: var(--pa-size-meta);
  letter-spacing: 0.07em;
  color: var(--pa-ink-2);
  transition: color 140ms var(--pa-ease);
}
.pa-masthead__date:hover { color: var(--pa-ink); }
.pa-masthead__date svg { display: block; }

.pa-iconbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--pa-tap);
  height: var(--pa-tap);
  border-radius: var(--pa-r-md);
  color: var(--pa-ink);
  transition: background-color 140ms var(--pa-ease);
}
.pa-iconbtn:hover { background: var(--pa-chrome-tint); }
.pa-iconbtn:active { background: var(--pa-chrome-line); }
.pa-iconbtn svg { display: block; }

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

.pa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--pa-s-2);
  min-height: var(--pa-tap);
  padding: 0 var(--pa-s-5);
  border-radius: var(--pa-r-lg);
  font-weight: 600;
  transition: background-color 140ms var(--pa-ease), transform 140ms var(--pa-ease);
}
.pa-btn--primary { background: var(--pa-chrome); color: #fff; }
/* a violet ring on a violet fill reads as a smudge */
.pa-btn--primary:focus-visible { outline-color: var(--pa-ink); outline-offset: 3px; }
.pa-btn--primary:hover { background: var(--pa-chrome-strong); }
.pa-btn--primary:active { transform: translateY(1px); }
.pa-btn--ghost { color: var(--pa-chrome); }
.pa-btn--ghost:hover { background: var(--pa-chrome-tint); }

/* ---- bottom sheet ---------------------------------------------------- */

.pa-sheet {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  align-items: end;
  pointer-events: none;
}
.pa-sheet[hidden] { display: none; }

.pa-sheet__scrim {
  position: absolute;
  inset: 0;
  background: rgba(22, 23, 26, 0.44);
  opacity: 0;
  transition: opacity 240ms var(--pa-ease);
}

.pa-sheet__panel:focus { outline: none; }
.pa-sheet__panel {
  position: relative;
  width: min(34rem, 100%);
  justify-self: center;
  max-height: 78dvh;
  display: flex;
  flex-direction: column;
  background: var(--pa-paper-lift);
  border-radius: var(--pa-r-xl) var(--pa-r-xl) 0 0;
  box-shadow: var(--pa-lift-2);
  transform: translateY(101%);
  transition: transform 320ms var(--pa-ease);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.pa-sheet.is-open { pointer-events: auto; }
.pa-sheet.is-open .pa-sheet__scrim { opacity: 1; }
.pa-sheet.is-open .pa-sheet__panel { transform: translateY(0); }

.pa-sheet__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pa-s-3);
  padding: var(--pa-s-3) var(--pa-s-3) var(--pa-s-2) var(--pa-s-4);
  border-bottom: 1px solid var(--pa-rule);
}
.pa-sheet__title {
  margin: 0;
  font-family: var(--pa-serif);
  font-weight: 700;
  font-size: var(--pa-size-title);
  line-height: 1.2;
}
.pa-sheet__body { overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }

/* ---- scrollbars ------------------------------------------------------
   A default scrollbar is a grey plastic gutter from another design system,
   and on Windows and Android it is wide enough to be the loudest object on
   a three-ink page. Every scrolling region in the system wears this instead:
   a hairline-coloured thumb on no track, inked darker on hover. Overlay
   scrollbars (macOS, iOS) ignore it and stay invisible, which is correct. */

.pa-scroll { scrollbar-width: thin; scrollbar-color: var(--pa-rule) transparent; }
.pa-scroll::-webkit-scrollbar { width: 10px; height: 10px; }
.pa-scroll::-webkit-scrollbar-track { background: transparent; }
.pa-scroll::-webkit-scrollbar-thumb {
  background: var(--pa-rule);
  background-clip: content-box;
  border: 3px solid transparent;
  border-radius: 999px;
}
.pa-scroll:hover::-webkit-scrollbar-thumb { background: var(--pa-ink-3); background-clip: content-box; }

/* ---- menu rows ------------------------------------------------------- */

.pa-menu { padding: var(--pa-s-2) 0 var(--pa-s-3); }
.pa-menu__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pa-s-3);
  width: 100%;
  min-height: var(--pa-tap);
  padding: var(--pa-s-2) var(--pa-s-4);
  text-align: start;
}
.pa-menu__row:hover { background: var(--pa-chrome-tint); }
.pa-menu__label { font-weight: 500; }
.pa-menu__hint { color: var(--pa-ink-3); font-size: var(--pa-size-meta); }
.pa-menu__sep { height: 1px; margin: var(--pa-s-2) var(--pa-s-4); background: var(--pa-rule); }

/* ---- switch ---------------------------------------------------------- */

.pa-switch {
  position: relative;
  flex: none;
  width: 2.75rem;
  height: 1.625rem;
  border-radius: 999px;
  background: var(--pa-rule);
  transition: background-color 180ms var(--pa-ease);
}
.pa-switch::after {
  content: '';
  position: absolute;
  inset-inline-start: 3px;
  top: 3px;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--pa-lift-1);
  transition: transform 180ms var(--pa-ease);
}
.pa-menu__row[aria-checked='true'] .pa-switch { background: var(--pa-chrome); }
.pa-menu__row[aria-checked='true'] .pa-switch::after { transform: translateX(1.125rem); }