/* ==========================================================================
   BETA OFFICE — an independent experimental sandbox under VELFONT OFFICE.
   Deliberately flat/brutalist, matching the root site's language (no
   radius, no shadow, thin borders, black/white) — everything "experimental"
   here comes from interaction and motion, not decoration. Fully namespaced
   under .beta-* / body.beta-office so nothing can collide with the root
   site's style.css (this file is never loaded there, and vice versa).
   ========================================================================== */

:root {
  --beta-bg: #ffffff;
  --beta-fg: #000000;
  --beta-fg-muted: rgba(0, 0, 0, 0.55);
  --beta-fg-faint: rgba(0, 0, 0, 0.32);
  --beta-line: #e5e5e5;
  --beta-accent: #e0261f;

  --beta-font-display: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --beta-font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --beta-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --beta-edge: 32px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background: var(--beta-bg);
}

body.beta-office {
  background: var(--beta-bg);
  color: var(--beta-fg);
  font-family: var(--beta-font-display);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

.beta-office a {
  color: inherit;
  text-decoration: none;
}

/* :where() keeps this reset's specificity at zero (same as a bare
   `button` selector) — as a plain `.beta-office button` descendant
   selector it was (0,1,1), which silently beat every single-class
   button style below it (.beta-toggle, .beta-mini-btn, .beta-window-btn,
   every experiment's own game-cell classes, etc.) regardless of source
   order, stripping their intended border/background. */
.beta-office :where(button) {
  font: inherit;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
}

.beta-office ul {
  list-style: none;
}

.beta-office :focus-visible {
  outline: 1px solid var(--beta-fg-muted);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .beta-office * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ==========================================================================
   Topbar — exit + badge, section 17/18
   ========================================================================== */

.beta-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px var(--beta-edge);
  pointer-events: none;
}

.beta-exit {
  pointer-events: auto;
  font-family: var(--beta-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--beta-fg);
  background: var(--beta-bg);
  transition: color 150ms var(--beta-ease), background-color 150ms var(--beta-ease);
}

.beta-exit:hover,
.beta-exit:focus-visible {
  color: var(--beta-bg);
  background: var(--beta-fg);
}

.beta-badge {
  pointer-events: none;
  font-family: var(--beta-font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  /* --beta-fg-faint (0.32 alpha) reads ~2.2:1 against --beta-bg — well
     under WCAG AA's 4.5:1 for normal text, and this badge is the one
     thing on the page that actually needs to be read ("things may
     break"), not decorative. --beta-fg-muted (0.55 alpha) clears ~4.7:1. */
  color: var(--beta-fg-muted);
  text-align: right;
}

/* ==========================================================================
   Status readout — section 16, real values only
   ========================================================================== */

.beta-status {
  position: fixed;
  left: var(--beta-edge);
  bottom: 14px;
  z-index: 700;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--beta-font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--beta-fg-faint);
  pointer-events: none;
}

/* ==========================================================================
   Keys legend — section 14
   ========================================================================== */

.beta-keys-btn {
  position: fixed;
  right: var(--beta-edge);
  bottom: 14px;
  z-index: 700;
  font-family: var(--beta-font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  padding: 6px 10px;
  border: 1px solid var(--beta-fg-muted);
  transition: color 150ms var(--beta-ease), border-color 150ms var(--beta-ease);
}

.beta-keys-btn:hover {
  color: var(--beta-accent);
  border-color: var(--beta-accent);
}

/* [hidden] must win over this rule's own `display: grid` — an author
   rule always beats the UA [hidden]{display:none} default regardless of
   specificity, so without this the panel stayed visible at all times
   no matter what keyboard.js set keysPanel.hidden to. */
.beta-keys-panel[hidden] {
  display: none;
}

.beta-keys-panel {
  position: fixed;
  right: var(--beta-edge);
  bottom: 46px;
  z-index: 750;
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  background: var(--beta-bg);
  border: 1px solid var(--beta-fg);
  font-family: var(--beta-font-mono);
  font-size: 11px;
}

.beta-keys-panel kbd {
  display: inline-block;
  min-width: 1.4em;
  padding: 1px 5px;
  border: 1px solid var(--beta-fg-muted);
  font-family: inherit;
  font-size: 10px;
  text-align: center;
}