:root {
  --bg-main: #c7d9e2;
  --bg-modal: #d8ecf4;
  --line-color: #1b262c;
  --font-pixel: 'Silkscreen', 'VT323', 'Courier New', monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  user-select: none;
  -webkit-user-select: none;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background-color: #0e1417;
  font-family: var(--font-pixel);
  color: var(--line-color);
  overflow: hidden;
}

#viewport {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-main);
  transition: background-color 0.25s ease;
}

/* 16:9 Retro Monitor Stage */
#stage {
  position: relative;
  width: min(100vw, 177.78vh);
  height: min(56.25vw, 100vh);
  background: var(--bg-main);
  padding: 3.2% 3.8%;
  cursor: none;
  overflow: hidden;
  transition: background-color 0.25s ease;
}

/* Main Retro Window Frame */
.window-frame {
  position: relative;
  width: 100%;
  height: 100%;
  border: 2.5px solid var(--line-color);
  border-radius: 0 0 18px 18px;
  display: flex;
  flex-direction: column;
  background: var(--bg-main);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.title-bar,
.modal-title-bar {
  height: 22px;
  border-bottom: 2.5px solid var(--line-color);
  padding: 3px 4px;
  background: var(--bg-modal);
  display: flex;
  align-items: center;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.stripes {
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    to bottom,
    var(--line-color) 0px,
    var(--line-color) 1.5px,
    transparent 1.5px,
    transparent 3.5px
  );
}

.window-body {
  position: relative;
  flex: 1;
  width: 100%;
  height: 100%;
}

.game-title {
  margin: 2.8% 0 0 0;
  text-align: center;
  font-size: clamp(18px, 2.35vw, 34px);
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--line-color);
}

/* Egg Character & Cross-Dissolve Sprites */
.egg-character {
  position: absolute;
  left: 7%;
  bottom: 8.5%;
  width: 21%;
  aspect-ratio: 220 / 260;
  transition: left 0.45s ease, bottom 0.45s ease, width 0.45s ease;
}

/* Centered position for Pants Drop & Mooning (Steps 7-9) */
.egg-character.centered {
  left: 38.5%;
  bottom: 5.5%;
  width: 23%;
}

.sprite {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.28s ease-in-out;
  pointer-events: none;
}

.sprite.active {
  opacity: 1;
}

.mouth-target {
  position: absolute;
  left: 24%;
  top: 36%;
  width: 52%;
  height: 44%;
  border-radius: 50%;
}

/* Basket & Egg Counter */
.basket-area {
  position: absolute;
  right: 7.5%;
  bottom: 10.5%;
  width: 14.5%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.basket-hitbox {
  width: 100%;
  aspect-ratio: 160 / 130;
  position: relative;
}

.basket-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.egg-counter {
  margin-top: 6%;
  font-size: clamp(12px, 1.45vw, 22px);
  letter-spacing: 0.08em;
  color: var(--line-color);
  text-align: center;
}

/* Dragged Egg & Motion Trail */
.drag-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 20;
}

.drag-egg {
  position: absolute;
  width: 4.5%;
  aspect-ratio: 60 / 76;
  transform: translate(-50%, -50%);
  transition: opacity 0.15s ease;
}

.drag-egg.ghost-1 {
  opacity: 0.25;
}

.drag-egg.ghost-2 {
  opacity: 0.1;
}

/* Retro Modal Windows */
.retro-modal {
  position: absolute;
  left: 50%;
  top: 47%;
  transform: translate(-50%, -50%);
  background: var(--bg-modal);
  border: 2.5px solid var(--line-color);
  box-shadow: inset 0 0 0 2px var(--bg-main);
  z-index: 30;
  display: flex;
  flex-direction: column;
  opacity: 1;
  transition: opacity 0.25s ease, background-color 0.25s ease, border-color 0.25s ease;
}

.popup-small {
  width: 34%;
  min-height: 27%;
}

/* Positioned higher during final Nude Egg scene so butt is visible */
.popup-small.top-pos {
  top: 26%;
  width: 44%;
  min-height: 28%;
}

/* Alert Warning Window (Step 3) */
.popup-small.alert-size {
  width: 22%;
  min-height: 27%;
}

.popup-large {
  width: 78%;
  height: 76%;
  top: 50%;
}

.popup-restart {
  width: 36%;
  min-height: 28%;
  top: 26%;
}

.modal-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 5% 6%;
  text-align: center;
}

.popup-text {
  font-size: clamp(13px, 1.4vw, 21px);
  line-height: 1.45;
  letter-spacing: 0.06em;
  color: var(--line-color);
}

.popup-warning {
  width: 44%;
  max-width: 96px;
  height: auto;
}

/* Purchase Dialog (Step 4) */
.purchase-content {
  justify-content: space-evenly;
  padding: 6% 8%;
}

.purchase-text {
  margin: 0;
  font-size: clamp(16px, 2.5vw, 38px);
  line-height: 1.42;
  letter-spacing: 0.05em;
  color: var(--line-color);
}

#purchase-form {
  width: 68%;
}

.purchase-input {
  width: 100%;
  padding: 2.2% 3.5%;
  font-family: var(--font-pixel);
  font-size: clamp(16px, 2.3vw, 34px);
  letter-spacing: 0.08em;
  color: var(--line-color);
  background: transparent;
  border: 2.5px solid var(--line-color);
  outline: none;
  text-transform: uppercase;
  cursor: none;
}

/* Restart Button */
.restart-content {
  gap: 14px;
}

.retro-btn {
  font-family: var(--font-pixel);
  font-size: clamp(12px, 1.35vw, 20px);
  padding: 8px 18px;
  color: var(--line-color);
  background: var(--bg-main);
  border: 2.5px solid var(--line-color);
  cursor: none;
  letter-spacing: 0.08em;
}

.retro-btn:hover,
.retro-btn:focus-visible {
  background: var(--line-color);
  color: var(--bg-modal);
  outline: none;
}

/* Custom Hand Cursor */
.hand-cursor {
  position: absolute;
  width: 3.1%;
  min-width: 24px;
  aspect-ratio: 1 / 1;
  transform: translate(-45%, -35%);
  pointer-events: none;
  z-index: 100;
}

.hidden {
  display: none !important;
}

/* Step 3: Red / Cyan Alert Theme */
body.alert-theme {
  --bg-main: #6ad7e8;
  --bg-modal: #7be3f2;
  --line-color: #a82016;
}

body.alert-theme .sprite,
body.alert-theme .basket-img,
body.alert-theme .drag-egg,
body.alert-theme .hand-cursor {
  filter: sepia(1) saturate(7) hue-rotate(-38deg) brightness(0.88) contrast(1.25);
}