/* ============================================================
   CTRL-V window chrome — reusable Win98/XP-style components
   matching the game's cover art and in-game dialogs.

   Components:
     .xp-window / .xp-titlebar / .xp-window-body
     .xp-btn                     beveled push button
     .xp-banner                  skewed blue tutorial banner
     .ctrlv-keycap               animated keycap sprite (C/X/V/Z)
     .ctrlv-readonly-flash       READ ONLY rejection feedback
   ============================================================ */

/* ---------- Window ---------- */

.xp-window {
  background: var(--ctrlv-chrome);
  /* Classic Win98 double bevel */
  box-shadow:
    inset -1px -1px var(--ctrlv-chrome-darker),
    inset 1px 1px var(--ctrlv-chrome-light),
    inset -2px -2px var(--ctrlv-chrome-dark),
    inset 2px 2px var(--ctrlv-chrome-lighter);
  padding: 3px;
  color: #000;
  font-family: var(--ctrlv-font-terminal);
}

.xp-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: var(--ctrlv-titlebar);
  color: var(--ctrlv-titlebar-text);
  padding: 3px 4px 3px 8px;
  user-select: none;
}

.xp-titlebar-text {
  font-family: var(--ctrlv-font-pixel);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.xp-titlebar-buttons {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

.xp-titlebar-btn {
  width: 18px;
  height: 16px;
  display: grid;
  place-items: center;
  background: var(--ctrlv-chrome);
  box-shadow:
    inset -1px -1px var(--ctrlv-chrome-darker),
    inset 1px 1px var(--ctrlv-chrome-lighter),
    inset -2px -2px var(--ctrlv-chrome-dark),
    inset 2px 2px var(--ctrlv-chrome-light);
  color: #000;
  font-family: var(--ctrlv-font-terminal);
  font-size: 10px;
  font-weight: bold;
  line-height: 1;
  cursor: default;
}

.xp-window-body {
  padding: 16px;
}

/* ---------- Push button ---------- */

.xp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--ctrlv-chrome);
  box-shadow:
    inset -1px -1px var(--ctrlv-chrome-darker),
    inset 1px 1px var(--ctrlv-chrome-lighter),
    inset -2px -2px var(--ctrlv-chrome-dark),
    inset 2px 2px var(--ctrlv-chrome-light);
  border: none;
  padding: 8px 20px;
  font-family: var(--ctrlv-font-pixel);
  font-size: 0.85rem;
  color: #000;
  text-decoration: none;
  cursor: pointer;
}

.xp-btn:active,
.xp-btn.is-pressed {
  /* Inverted bevel + 1px content nudge, like the real thing */
  box-shadow:
    inset 1px 1px var(--ctrlv-chrome-darker),
    inset -1px -1px var(--ctrlv-chrome-lighter),
    inset 2px 2px var(--ctrlv-chrome-dark),
    inset -2px -2px var(--ctrlv-chrome-light);
  padding: 9px 19px 7px 21px;
}

/* ---------- Tutorial banner ---------- */

.xp-banner {
  display: inline-block;
  background: var(--ctrlv-banner-blue);
  color: #fff;
  font-family: var(--ctrlv-font-pixel);
  padding: 18px 44px;
  /* Stepped diagonal edges, like the game's pixelated parallelogram */
  clip-path: polygon(
    24px 0, 100% 0,
    calc(100% - 8px) 33%, calc(100% - 16px) 33%,
    calc(100% - 16px) 66%, calc(100% - 24px) 66%,
    calc(100% - 24px) 100%, 0 100%,
    8px 66%, 16px 66%,
    16px 33%, 24px 33%
  );
}

.xp-banner h2,
.xp-banner p {
  margin: 0;
}

/* ---------- Keycap sprites ---------- */

.ctrlv-keycap {
  width: 64px;
  height: 64px;
  background-size: contain;
  background-repeat: no-repeat;
  image-rendering: pixelated;
  flex-shrink: 0;
}

.ctrlv-keycap--c { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-c-up.png"); }
.ctrlv-keycap--v { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-v-up.png"); }
.ctrlv-keycap--x { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-x-up.png"); }
.ctrlv-keycap--z { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-z-up.png"); }

.ctrlv-keycap--c.is-pressed { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-c-down.png"); }
.ctrlv-keycap--v.is-pressed { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-v-down.png"); }
.ctrlv-keycap--x.is-pressed { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-x-down.png"); }
.ctrlv-keycap--z.is-pressed { background-image: url("/assets/images/projects/CTRL-V/sprites/keycap-z-down.png"); }

/* ---------- READ ONLY rejection ---------- */

@keyframes ctrlv-readonly-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

@keyframes ctrlv-readonly-fade {
  0% { opacity: 0; }
  25% { opacity: 1; }
  100% { opacity: 0; }
}

.ctrlv-readonly-flash {
  position: relative;
  animation: ctrlv-readonly-shake 0.4s linear;
}

.ctrlv-readonly-flash::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: url("/assets/images/projects/CTRL-V/sprites/readonly.png") repeat;
  background-size: 96px;
  image-rendering: pixelated;
  animation: ctrlv-readonly-fade 0.8s ease-out forwards;
}

@media (prefers-reduced-motion: reduce) {
  .ctrlv-readonly-flash { animation: none; }
  .ctrlv-readonly-flash::after { animation-duration: 0.01s; }
}