/* KritZaar emulator shared styles (Agent 4).
   Contract 3.9 variables, plus buttons, cards, badges, the game tile,
   touch controls and the continue-playing strip.
   Everything is prefixed kz-. Nothing here styles html, body or bare
   elements, so it is safe to load on any page. */

:root {
  --kz-bg: #0f1020;
  --kz-surface: #191a30;
  --kz-text: #f1f0fa;
  --kz-muted: #a5a3c2;
  --kz-accent: #7c5cff;
  --kz-radius: 14px;
  --kz-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Extras (not in the contract). Tuned for 4.5:1 text contrast. */
  --kz-border: rgba(255, 255, 255, 0.14);
  --kz-accent-strong: #6a46f5; /* button fills under white text */
  --kz-accent-text: #a994ff;   /* links and focus rings on dark surfaces */
  --kz-danger: #c63d54;
  --kz-warn: #f0b429;
}

/* ---------- Helpers ---------- */

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

.kz-skip {
  position: absolute;
  left: 8px;
  top: -60px;
  z-index: 100;
  padding: 0.6em 1em;
  border-radius: var(--kz-radius, 14px);
  background: var(--kz-accent-strong, #6a46f5);
  color: #fff;
  font: 600 1rem var(--kz-font, system-ui, sans-serif);
  text-decoration: none;
}
.kz-skip:focus { top: 8px; }

/* ---------- Buttons with the pop-out press effect ---------- */

.kz-btn {
  --kz-btn-bg: var(--kz-surface, #191a30);
  --kz-btn-edge: rgba(0, 0, 0, 0.5);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  box-sizing: border-box;
  min-height: 44px;
  padding: 0.55em 1.1em;
  font: 600 1rem/1.2 var(--kz-font, system-ui, sans-serif);
  color: var(--kz-text, #f1f0fa);
  text-decoration: none;
  text-align: center;
  background: var(--kz-btn-bg);
  border: 1px solid var(--kz-border, rgba(255, 255, 255, 0.14));
  border-radius: var(--kz-radius, 14px);
  box-shadow: 0 4px 0 var(--kz-btn-edge);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}
.kz-btn:hover:not(:disabled):not([aria-disabled="true"]) {
  transform: translateY(-1px);
  box-shadow: 0 5px 0 var(--kz-btn-edge);
}
.kz-btn:active:not(:disabled):not([aria-disabled="true"]) {
  transform: translateY(3px);
  box-shadow: 0 1px 0 var(--kz-btn-edge);
}
.kz-btn:focus-visible {
  outline: 3px solid var(--kz-accent-text, #a994ff);
  outline-offset: 3px;
}
.kz-btn:disabled,
.kz-btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

.kz-btn--primary {
  --kz-btn-bg: var(--kz-accent-strong, #6a46f5);
  --kz-btn-edge: #3a229e;
  color: #fff;
  border-color: transparent;
}
.kz-btn--danger {
  --kz-btn-bg: var(--kz-danger, #c63d54);
  --kz-btn-edge: #6d1d2b;
  color: #fff;
  border-color: transparent;
}

/* ---------- Cards and badges ---------- */

.kz-card {
  box-sizing: border-box;
  padding: 1rem;
  color: var(--kz-text, #f1f0fa);
  background: var(--kz-surface, #191a30);
  border: 1px solid var(--kz-border, rgba(255, 255, 255, 0.14));
  border-radius: var(--kz-radius, 14px);
}

.kz-badge {
  display: inline-block;
  padding: 0.15em 0.65em;
  font: 600 0.75rem/1.4 var(--kz-font, system-ui, sans-serif);
  color: var(--kz-accent-text, #a994ff);
  background: rgba(124, 92, 255, 0.16);
  border: 1px solid rgba(169, 148, 255, 0.35);
  border-radius: 999px;
}
.kz-badge--muted {
  color: var(--kz-muted, #a5a3c2);
  background: transparent;
  border-color: var(--kz-border, rgba(255, 255, 255, 0.14));
}

/* ---------- Game tile: initial on a coloured, scanlined screen ---------- */

.kz-tile {
  --tile-hue: 260;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  box-sizing: border-box;
  color: hsl(var(--tile-hue) 85% 86%);
  background: hsl(var(--tile-hue) 42% 26%);
  border-radius: calc(var(--kz-radius, 14px) * 0.6);
  font: 800 var(--kz-tile-font, 1.6rem)/1 var(--kz-font, system-ui, sans-serif);
  user-select: none;
}
.kz-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(0, 0, 0, 0.2) 0 1px, transparent 1px 3px);
}

/* ---------- Touch controls (js/touch-controls.js) ---------- */

.kz-tc {
  --kz-tc-size: clamp(52px, 14vmin, 72px);
  --kz-tc-pad: clamp(120px, 34vmin, 170px);
  position: absolute;
  inset: 0;
  z-index: 30;
  pointer-events: none;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  font-family: var(--kz-font, system-ui, sans-serif);
}
.kz-tc[hidden] { display: none; }

.kz-tc-pad,
.kz-tc-actions,
.kz-tc-util { position: absolute; pointer-events: auto; touch-action: none; }

.kz-tc-pad {
  left: calc(14px + env(safe-area-inset-left, 0px));
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  width: var(--kz-tc-pad);
  height: var(--kz-tc-pad);
}
.kz-tc-actions {
  right: calc(14px + env(safe-area-inset-right, 0px));
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  display: grid;
  grid-template-columns: repeat(2, var(--kz-tc-size));
  gap: 10px;
}
/* Two-button layouts: stagger so thumbs have room */
.kz-tc[data-layout="dpad-2btn"] .kz-tc-action:first-child,
.kz-tc[data-layout="mouse-pad"] .kz-tc-action:first-child { margin-top: 26px; }

.kz-tc-util {
  left: 50%;
  bottom: calc(14px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kz-tc-btn,
.kz-tc-arrow {
  appearance: none;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  color: #fff;
  background: rgba(15, 16, 32, 0.6);
  border: 2px solid rgba(255, 255, 255, 0.55);
  font: 700 0.8rem/1 var(--kz-font, system-ui, sans-serif);
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}
.kz-tc-btn.is-down,
.kz-tc-arrow.is-down {
  background: var(--kz-accent-strong, #6a46f5);
  border-color: #fff;
}
.kz-tc-btn:focus-visible,
.kz-tc-arrow:focus-visible {
  outline: 3px solid var(--kz-accent-text, #a994ff);
  outline-offset: 2px;
}
.kz-tc-action { width: var(--kz-tc-size); height: var(--kz-tc-size); border-radius: 50%; }
.kz-tc-pill { min-width: 56px; height: 36px; padding: 0 12px; border-radius: 18px; }

/* D-pad: plus-shaped grid of four arrows; the pad itself reads the finger */
.kz-tc-pad--dpad {
  display: grid;
  grid-template: repeat(3, 1fr) / repeat(3, 1fr);
}
.kz-tc-arrow { display: grid; place-items: center; border-radius: 10px; }
.kz-tc-arrow::before {
  content: "";
  width: 40%;
  height: 40%;
  background: currentColor;
}
.kz-tc-arrow[data-key="38"] { grid-area: 1 / 2; }
.kz-tc-arrow[data-key="37"] { grid-area: 2 / 1; }
.kz-tc-arrow[data-key="39"] { grid-area: 2 / 3; }
.kz-tc-arrow[data-key="40"] { grid-area: 3 / 2; }
.kz-tc-arrow[data-key="38"]::before { clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.kz-tc-arrow[data-key="40"]::before { clip-path: polygon(0 0, 100% 0, 50% 100%); }
.kz-tc-arrow[data-key="37"]::before { clip-path: polygon(100% 0, 100% 100%, 0 50%); }
.kz-tc-arrow[data-key="39"]::before { clip-path: polygon(0 0, 100% 50%, 0 100%); }

/* Mouse-pad layout: a drag surface */
.kz-tc-pad--trackpad {
  display: grid;
  place-items: center;
  width: calc(var(--kz-tc-pad) * 1.3);
  height: var(--kz-tc-pad);
  background: rgba(15, 16, 32, 0.45);
  border: 2px dashed rgba(255, 255, 255, 0.5);
  border-radius: var(--kz-radius, 14px);
}
.kz-tc-hint {
  padding: 0 12px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.8rem;
  text-align: center;
  pointer-events: none;
}

/* ---------- Continue-playing strip (js/continue-playing.js) ---------- */

.kz-cp {
  box-sizing: border-box;
  width: 100%;
  color: var(--kz-text, #f1f0fa);
  font-family: var(--kz-font, system-ui, sans-serif);
}
.kz-cp[hidden] { display: none; }
.kz-cp-title { margin: 0 0 0.6rem; font-size: 1.05rem; font-weight: 700; }
.kz-cp-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.kz-cp-link {
  display: grid;
  grid-template-columns: 48px 1fr;
  align-items: center;
  gap: 0.75rem;
  min-height: 44px;
  padding: 0.6rem;
  color: inherit;
  text-decoration: none;
  background: var(--kz-surface, #191a30);
  border: 1px solid var(--kz-border, rgba(255, 255, 255, 0.14));
  border-radius: var(--kz-radius, 14px);
}
.kz-cp-link:hover { border-color: var(--kz-accent, #7c5cff); }
.kz-cp-link:focus-visible {
  outline: 3px solid var(--kz-accent-text, #a994ff);
  outline-offset: 2px;
}
.kz-cp-tile { width: 48px; height: 48px; --kz-tile-font: 1.3rem; }
.kz-cp-name {
  display: block;
  overflow: hidden;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.kz-cp-when { display: block; color: var(--kz-muted, #a5a3c2); font-size: 0.85rem; }

.kz-cp-note { margin-top: 0.8rem; }
.kz-cp-note p { margin: 0 0 0.75rem; line-height: 1.45; }
.kz-cp-note-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* ---------- Reduced motion: no pop-out, no movement ---------- */

@media (prefers-reduced-motion: reduce) {
  .kz-btn { transition: none; }
  .kz-btn:hover:not(:disabled):not([aria-disabled="true"]),
  .kz-btn:active:not(:disabled):not([aria-disabled="true"]) {
    transform: none;
    box-shadow: 0 4px 0 var(--kz-btn-edge);
  }
  .kz-btn:active:not(:disabled):not([aria-disabled="true"]) { filter: brightness(0.85); }
}