/* ==========================================================================
   Gate steps 4 & 5 — paginated scrapbook + the dramatic message unboxing.
   Loaded after gate.css; both screens fit the viewport (no page scroll).
   ========================================================================== */

/* Fit-to-screen windows ---------------------------------------------------- */

.stage:has([data-screen="4"]:not([hidden])),
.stage:has([data-screen="5"]:not([hidden])) { padding-block: 1rem; }

[data-screen="4"] .window,
[data-screen="5"] .window {
  display: flex;
  flex-direction: column;
  height: calc(100svh - 6.25rem);
  min-height: 30rem;
}
[data-screen="4"] .window__bar,
[data-screen="5"] .window__bar { flex: none; }
[data-screen="4"] .window__body,
[data-screen="5"] .window__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: clamp(1rem, 2.5vh, 1.75rem) clamp(1rem, 3vw, 2rem) 1rem;
}
[data-screen="4"] .window__body > * { flex: none; }

[data-screen="4"] .kicker { margin-bottom: .3rem; }
[data-screen="4"] .big--md { font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.4rem); }
[data-screen="4"] .sub { margin-top: .2rem; font-size: 1rem; }

/* Scrapbook: 3 per page ---------------------------------------------------- */

[data-screen="4"] .scrapbook {
  flex: 1 1 auto !important;
  min-height: 0;
  align-items: center;
  align-content: center;
  margin: .75rem 0;
  padding: .9rem .5rem .25rem;
  --pw: max(9rem, calc(100svh - 27.5rem));
}
.scrapbook li { display: flex; justify-content: center; }
.scrapbook .polaroid { width: min(100%, var(--pw)); }

/* old one-off drop-in replaced by per-page animations */
.screen[data-screen="4"].is-active .scrapbook li { animation: none; }
.screen[data-screen="4"] .scrapbook li.is-entering { animation: page-in .6s var(--ease) calc(var(--k) * .09s) both; }
.screen[data-screen="4"] .scrapbook[data-dir="prev"] li.is-entering { animation-name: page-in-prev; }
.screen[data-screen="4"] .scrapbook li.is-leaving { animation: page-out .28s ease-in forwards; }
.screen[data-screen="4"] .scrapbook[data-dir="prev"] li.is-leaving { animation-name: page-out-prev; }
@keyframes page-in      { from { opacity: 0; transform: translateX(80px)  rotate(8deg)  scale(.9); } }
@keyframes page-in-prev { from { opacity: 0; transform: translateX(-80px) rotate(-8deg) scale(.9); } }
@keyframes page-out      { to { opacity: 0; transform: translateX(-70px) rotate(-7deg) scale(.9); } }
@keyframes page-out-prev { to { opacity: 0; transform: translateX(70px)  rotate(7deg)  scale(.9); } }

/* Pager */
.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: .75rem;
  border-top: 2px dashed rgb(31 26 23 / .2);
}
.pager__btn { min-height: 2.75rem; padding: .5rem 1.1rem; font-size: .95rem; }
.pager__btn:disabled { visibility: hidden; }
.pager__mid { display: grid; justify-items: center; gap: .35rem; }
.pager__dots { display: flex; gap: .35rem; }
.pager__dots i {
  width: 10px;
  height: 10px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: #fff;
  transition: width .35s var(--ease), background-color .2s;
}
.pager__dots i.is-on { width: 26px; background: var(--pink); }
.pager__label { font-family: var(--pixel); font-size: 1.1rem; line-height: 1; color: var(--ink-2); }
[data-page-next].is-final { background: var(--yellow); animation: nudge 2.4s ease-in-out 1s infinite; }

@media (max-width: 47.99rem) {
  [data-screen="4"] .scrapbook {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .9rem .9rem;
    --pw: max(6rem, calc((100svh - 30rem) / 2));
  }
  .scrapbook li.k2 { grid-column: 1 / -1; }
  .pager__label { display: none; }
  .pager__btn { padding-inline: .8rem; font-size: .9rem; }
}

/* Step 5 — the message ------------------------------------------------------ */

.msg { align-items: center; justify-content: center; text-align: center; }

/* 1) Fake loading screen */
.loader { display: grid; justify-items: center; gap: .9rem; width: min(100%, 26rem); }
.loader__icon { font-size: 4rem; line-height: 1; animation: hop .5s ease-in-out infinite alternate; }
.loader__bar {
  width: 100%;
  height: 30px;
  padding: 3px;
  border: var(--border);
  border-radius: 999px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.loader__bar span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: 999px;
  background: repeating-linear-gradient(-45deg, var(--pink) 0 12px, #FF8DBB 12px 24px);
  background-size: 34px 34px;
  animation: stripes .6s linear infinite;
  transition: width .45s var(--ease), background-color .2s;
}
@keyframes stripes { to { background-position: 34px 0; } }
.loader__pct { font-family: var(--display); font-size: 2.2rem; line-height: 1; }
.loader__status { min-height: 2.6em; font-family: var(--pixel); font-size: 1.35rem; line-height: 1.2; }
.loader.is-error .loader__bar { animation: shake .3s ease 2; border-color: var(--red); }
.loader.is-error .loader__bar span { background: repeating-linear-gradient(-45deg, var(--red) 0 12px, #FF8A8D 12px 24px); }
.loader.is-error .loader__status { color: var(--red); }
.loader.is-leaving { animation: fade-out .35s ease forwards; }

/* 2) The mailroom + envelope that plays hard to get */
.mailroom { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; width: 100%; flex: 1; min-height: 0; }
.mailroom__toast {
  min-height: 2.4em;
  font-family: var(--display);
  font-size: clamp(1.3rem, 1rem + 1.4vw, 1.9rem);
  line-height: 1.15;
}
.mailroom__toast.is-pop { animation: toast-pop .45s var(--ease); }
.mailroom__hint { font-family: var(--pixel); font-size: 1.3rem; color: var(--ink-2); animation: blink 1.2s steps(2) infinite; }
@keyframes blink { 50% { opacity: .35; } }
.mailroom__floor { animation: bob 2.2s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(-10px); } }

.env {
  position: relative;
  display: block;
  width: min(72vw, 21rem);
  aspect-ratio: 3 / 2;
  padding: 0;
  border: 0;
  background: none;
  transform: translate(var(--x, 0), var(--y, 0)) rotate(var(--r, 0deg)) scale(var(--s, 1));
  transition: transform .45s var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.env:focus-visible { outline-offset: 8px; }
.env__back, .env__front, .env__flap { position: absolute; left: 0; right: 0; }
.env__back { inset: 0; border: var(--border); border-radius: 12px; background: #FF9FC5; box-shadow: var(--shadow); }
.env__letter {
  position: absolute;
  left: 9%; right: 9%; top: 8%; bottom: 10%;
  display: grid;
  align-content: center;
  gap: 12%;
  padding: 0 12%;
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: #FFFEF9;
  z-index: 1;
  transition: transform .9s var(--ease) .45s, z-index 0s .45s;
}
.env.is-open .env__letter { z-index: 5; }
.env__letter i { display: block; height: 3px; border-radius: 3px; background: rgb(90 169 255 / .5); }
.env__letter i:last-child { width: 55%; }
.env__front {
  inset: 0;
  z-index: 2;
  border-radius: 12px;
  background: #FFC7DC;
  clip-path: polygon(0 32%, 50% 68%, 100% 32%, 100% 100%, 0 100%);
  box-shadow: inset 0 0 0 2.5px var(--ink);
}
.env__front::after {
  /* the V fold lines */
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top right, transparent calc(50% - 1.5px), var(--ink) 50%, transparent calc(50% + 1.5px)) left bottom / 50% 68% no-repeat,
    linear-gradient(to top left, transparent calc(50% - 1.5px), var(--ink) 50%, transparent calc(50% + 1.5px)) right bottom / 50% 68% no-repeat;
  opacity: .35;
}
.env__flap {
  top: 0;
  z-index: 3;
  height: 62%;
  background: var(--pink);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top;
  transition: transform .6s ease-in-out, z-index 0s .3s;
  filter: drop-shadow(0 2px 0 var(--ink));
}
.env__seal {
  position: absolute;
  top: calc(62% - 26px);
  left: 50%;
  z-index: 4;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-left: -26px;
  border: var(--border);
  border-radius: 50%;
  background: var(--red);
  font-size: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), opacity .3s;
}
.env__scan {
  position: absolute;
  left: -6%; right: -6%;
  top: 0;
  z-index: 5;
  height: 5px;
  border-radius: 5px;
  background: var(--green);
  box-shadow: 0 0 14px 4px rgb(54 207 138 / .6);
  opacity: 0;
}
.env.is-scanning .env__scan { opacity: 1; animation: scan .55s ease-in-out infinite alternate; }
@keyframes scan { to { top: 100%; } }
.env.is-spin { animation: env-spin .8s var(--ease); }
@keyframes env-spin { 50% { transform: translate(var(--x, 0), var(--y, 0)) rotate(200deg) scale(.7); } }
.env.is-shake { animation: env-shake .12s linear 8; }
@keyframes env-shake {
  25% { transform: translate(calc(var(--x, 0px) - 6px), var(--y, 0)) rotate(-4deg); }
  75% { transform: translate(calc(var(--x, 0px) + 6px), var(--y, 0)) rotate(4deg); }
}

/* opening */
.env.is-open { --x: 0px; --y: 0px; --r: 0deg; --s: 1.05; }
.env.is-open .env__flap { transform: rotateX(180deg); z-index: 0; }
.env.is-open .env__seal { transform: scale(0) rotate(90deg); opacity: 0; }
.env.is-open .env__letter { transform: translateY(-62%); }

.heart-pop {
  position: fixed;
  z-index: 85;
  pointer-events: none;
  font-size: var(--s, 1.6rem);
  animation: heart-pop 1.4s cubic-bezier(.2, .8, .3, 1) forwards;
}
@keyframes heart-pop {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(.3); }
  15%  { opacity: 1; }
  100% { opacity: 0; transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(1.1) rotate(var(--r)); }
}

/* 3) The letter */
.letter-view { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1rem; width: 100%; flex: 1; min-height: 0; }
.letter-view .letterpaper {
  flex: 0 1 auto;
  min-height: 0;
  width: min(100%, 36rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  animation: letter-rise .9s var(--ease) both;
  scrollbar-width: thin;
  scrollbar-color: var(--pink) transparent;
}
@keyframes letter-rise {
  from { opacity: 0; transform: translateY(80px) rotate(-3deg) scale(.85); }
}
.letterpaper__to { margin-bottom: .5rem; font-family: var(--display); font-size: 1.2rem; color: var(--pink); -webkit-text-stroke: .5px var(--ink); }
.letter-view .actions { margin-top: 0; }
.letter-view .actions:not([hidden]) { animation: word-in .6s var(--ease) both; }

@media (prefers-reduced-motion: reduce) {
  .env, .env__flap, .env__letter, .mailroom__floor { transition: none; animation: none; }
  .heart-pop { display: none; }
}

/* Step 6 - the final question ------------------------------------------------ */

.quiz { display: grid; justify-items: center; gap: .75rem; }
.quiz__lock { font-size: 3.5rem; line-height: 1; animation: hop .6s ease-in-out infinite alternate; }
.quiz__lock.is-open { animation: unlock .8s var(--ease); }
.quiz__form { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; width: min(100%, 30rem); margin-top: .75rem; }
.quiz__input {
  flex: 1 1 14rem;
  min-height: 3.1rem;
  padding: .6rem 1rem;
  border: var(--border);
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  font-family: var(--display);
  font-size: 1.3rem;
  text-align: center;
}
.quiz__input:focus-visible { outline: none; background: var(--yellow-soft); }
.quiz__input.is-wrong { border-color: var(--red); animation: shake .35s ease; }
.quiz__input.is-right { border-color: var(--green); background: var(--green-soft); }
.quiz__tries { min-height: 1.2em; font-family: var(--pixel); font-size: 1.15rem; color: var(--ink-2); }
.quiz__hint {
  padding: .75rem 1.1rem;
  border: 2.5px dashed var(--pink);
  border-radius: 12px;
  background: var(--pink-soft);
  font-family: var(--display);
  font-size: 1.1rem;
  line-height: 1.3;
  transform: rotate(-1.5deg);
  animation: word-in .6s var(--ease) both;
}
.quiz__hint.is-new { animation: word-in .6s var(--ease) both; }
.quiz__win {
  width: 100%;
  font-family: var(--display);
  font-size: clamp(1.8rem, 1.2rem + 3vw, 2.8rem);
  line-height: 1.1;
  color: var(--pink);
  -webkit-text-stroke: 1.5px var(--ink);
  paint-order: stroke fill;
  text-shadow: 3px 3px 0 var(--ink);
  animation: word-in .7s var(--ease) both;
}
[data-quiz-done]:not([hidden]) { display: grid; justify-items: center; gap: 1rem; }

/* The prank: countdown -> jump scare -> laugh ---------------------------------- */

.scare {
  --dark: 0;
  position: fixed;
  inset: 0;
  z-index: 95;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  overflow: hidden;
  color: #fff;
  text-align: center;
  background:
    radial-gradient(circle at 50% 50%, rgb(120 0 20 / calc(var(--dark) * .55)), transparent 70%),
    rgb(calc(40 - var(--dark) * 30) calc(20 - var(--dark) * 15) calc(30 - var(--dark) * 22));
  transition: background .8s ease;
  animation: fade .4s ease both;
}
.scare[hidden] { display: none !important; }
.scare::after {
  /* heavy vignette that closes in as the count drops */
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 calc(80px + var(--dark) * 220px) calc(var(--dark) * 60px) #000;
  transition: box-shadow .8s ease;
}

.scare__count { position: relative; z-index: 1; display: grid; gap: .5rem; }
.scare__label { font-family: var(--pixel); font-size: clamp(1.4rem, 1rem + 1.5vw, 2rem); letter-spacing: .08em; opacity: .85; }
.scare__num {
  font-family: var(--display);
  font-size: clamp(9rem, 38vmin, 20rem);
  line-height: 1;
  color: var(--pink);
  -webkit-text-stroke: 4px #fff;
  paint-order: stroke fill;
  text-shadow: 0 0 40px rgb(255 111 168 / .6);
}
.scare__num.is-tick { animation: count-pop .9s cubic-bezier(.2, .9, .3, 1) both; }
.scare__num.is-late { color: var(--red); text-shadow: 0 0 60px rgb(255 40 60 / .8); }
@keyframes count-pop {
  0%   { opacity: 0; transform: scale(1.9); }
  25%  { opacity: 1; transform: scale(.92); }
  45%  { transform: scale(1.04); }
  100% { transform: scale(1); }
}
.scare.is-heartbeat { animation: heartbeat .9s ease-in-out infinite; }
@keyframes heartbeat { 12% { filter: brightness(1.25); } 24% { filter: brightness(1); } 36% { filter: brightness(1.15); } }

/* BOO */
.scare.is-boo { background: #000; animation: boo-flash .5s ease-out both; }
@keyframes boo-flash { 0% { background: #fff; } 12% { background: #7a0010; } 100% { background: #000; } }
.scare__boo { position: relative; z-index: 2; display: grid; justify-items: center; gap: 1rem; }
.scare__face {
  display: grid;
  place-items: center;
  width: min(80vmin, 38rem);
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  font-size: min(60vmin, 28rem);
  line-height: 1;
  filter: drop-shadow(0 0 40px rgb(255 0 40 / .8)) contrast(1.2) saturate(1.3);
  animation: lunge .35s cubic-bezier(.1, 1.6, .3, 1) both, jitter .07s linear .35s 12;
}
.scare__face img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.4) sepia(.35) hue-rotate(-30deg) contrast(1.4); }
@keyframes lunge { from { transform: scale(.1) rotate(-20deg); } }
@keyframes jitter {
  25% { transform: translate(-8px, 5px) rotate(-2deg) scale(1.03); }
  50% { transform: translate(7px, -6px) rotate(2deg); }
  75% { transform: translate(-5px, -4px) rotate(-1deg) scale(1.02); }
}
.scare__text {
  font-family: var(--display);
  font-size: clamp(4rem, 14vmin, 9rem);
  line-height: 1;
  color: var(--red);
  text-shadow: 4px 0 #00e5ff, -4px 0 #ff00c8, 0 0 30px rgb(255 0 40 / .9);
  animation: jitter .07s linear 12;
}

/* LOL reveal */
.scare.is-lol {
  background: repeating-conic-gradient(from 0deg at 50% 45%, #FFD6E7 0 15deg, #FFF0B8 15deg 30deg);
  color: var(--ink);
}
.scare.is-lol::after { box-shadow: none; }
.scare__reveal { position: relative; z-index: 1; display: grid; justify-items: center; gap: .9rem; width: min(34rem, 100%); }
.scare__laugh {
  display: grid;
  place-items: center;
  width: clamp(140px, 34vw, 190px);
  aspect-ratio: 1;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 8px 8px 0 var(--ink);
  overflow: hidden;
  font-size: clamp(5rem, 20vw, 7rem);
  line-height: 1;
  animation: pop-face .6s var(--ease) both, dance .9s ease-in-out .6s infinite;
}
.scare__laugh img { width: 100%; height: 100%; object-fit: cover; }
.scare__lol {
  font-family: var(--display);
  font-size: clamp(2rem, 1.2rem + 4vw, 3.4rem);
  line-height: 1.1;
  color: var(--pink);
  -webkit-text-stroke: 2px var(--ink);
  paint-order: stroke fill;
  text-shadow: 4px 4px 0 var(--ink);
  animation: word-in .6s var(--ease) .2s both;
}
.scare__sub { font-size: 1.15rem; font-weight: 500; animation: word-in .6s var(--ease) .45s both; }
.scare__from { font-family: var(--pixel); font-size: 1.5rem; line-height: 1; animation: word-in .6s var(--ease) .6s both; }
.scare__reveal .btn { animation: word-in .6s var(--ease) .9s both; }

@media (prefers-reduced-motion: reduce) {
  .scare__face, .scare__text, .scare.is-heartbeat, .scare.is-boo { animation: none !important; }
}
.scare__face--mask { border-radius: 0; overflow: visible; width: min(62vmin, 30rem); aspect-ratio: 200 / 250; filter: drop-shadow(0 0 50px rgb(255 0 30 / .55)); }
.scare__face--mask svg { width: 100%; height: 100%; }

/* Sound on/off */
.sound-toggle {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 98;
  display: grid;
  place-items: center;
  width: 2.9rem;
  height: 2.9rem;
  padding: 0;
  border: var(--border);
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow-sm);
  font-size: 1.25rem;
  line-height: 1;
  transition: transform .2s var(--ease);
}
.sound-toggle:hover { transform: rotate(-8deg) scale(1.08); }
.sound-toggle[aria-pressed="false"] { background: #F1ECE3; }