/* ==========================================================================
   MUNDO — intro y bosque
   ========================================================================== */

/* ---------- Intro ---------- */

.intro { position: fixed; inset: 0; z-index: 23; overflow: hidden; }
.intro__dark { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 56%, #091119 0%, #04070a 55%, #020405 100%); }
.intro__curtain {
  position: absolute;
  top: -6%;
  height: 112%;
  width: 64vw;
  opacity: 0;
  transition: opacity 4s ease;
  will-change: transform;
}
.intro__curtain svg { width: 100%; height: 100%; overflow: visible; }
.intro__curtain--l { left: -8vw; transform-origin: 0% 50%; }
.intro__curtain--r { right: -8vw; transform-origin: 100% 50%; }
.intro.is-ready .intro__curtain--d0 { opacity: .55; }
.intro.is-ready .intro__curtain--d1 { opacity: 1; }
.intro__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 55%, rgba(142, 196, 224, .22), rgba(54, 86, 140, .08) 30%, transparent 62%);
  opacity: 0;
  pointer-events: none;
}
.intro__content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 0 16px;
  text-align: center;
  pointer-events: none;
}
.intro__content > * { pointer-events: auto; }
.intro__phrase {
  margin: 0;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(1.25rem, 3.4vw, 2.6rem);
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--c-8);
  text-shadow: 0 0 30px rgba(0, 0, 0, .9);
}
.intro__word { display: inline-block; white-space: nowrap; }
.intro__word span {
  display: inline-block;
  opacity: 0;
  filter: blur(6px);
  transform: translateY(6px);
  transition: opacity 1.6s ease, filter 1.8s ease, transform 2s var(--ease-organic);
  transition-delay: calc(1.6s + var(--i) * 85ms);
}
.intro.is-ready .intro__word span { opacity: 1; filter: blur(0); transform: none; }
.intro__enter {
  position: relative;
  margin-top: clamp(40px, 8vh, 72px);
  padding: 14px 6px;
  font: 500 11px/1 var(--sans);
  letter-spacing: .6em;
  text-indent: .6em;
  text-transform: uppercase;
  color: var(--c-7);
  opacity: 0;
  transition: opacity 2s ease 4.6s, color .5s, letter-spacing 1s var(--ease-organic);
}
.intro.is-ready .intro__enter { opacity: 1; }
.intro__enter i {
  position: absolute;
  left: 50%; bottom: 0;
  width: 26px; height: 1px;
  margin-left: -13px;
  background: currentColor;
  transition: width 1s var(--ease-organic), margin 1s var(--ease-organic);
}
.intro__enter:hover { color: var(--c-9); letter-spacing: .72em; }
.intro__enter:hover i { width: 100%; margin-left: -50%; }
.intro__sound {
  position: absolute;
  bottom: max(28px, env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  transition: opacity 2s ease 5.4s, color .4s;
}
.intro__sound > i { margin-bottom: 2px; }
.intro__sound span { display: none; }
.intro__sound em { font: italic 13px/1 var(--fell); letter-spacing: .08em; text-transform: none; color: var(--c-5); }
.intro__sound[aria-pressed="true"] { color: var(--c-8); }
.intro.is-ready .intro__sound { opacity: 1; }
.intro.is-leaving .intro__sound { opacity: 0; transition: opacity .4s; }
.intro.is-gone { opacity: 0; transition: opacity .8s; }

/* ---------- Bosque ---------- */

.place--forest { position: relative; height: 100vh; height: 100svh; z-index: 1; }
.forest { position: absolute; inset: 0; overflow: hidden; background: #05080c; }
.forest__sky { position: absolute; inset: 0; background: radial-gradient(ellipse 80% 70% at 54% 26%, #10202f 0%, #09121c 42%, #05080c 100%); }
.forest__layer { position: absolute; inset: 0; will-change: transform; pointer-events: none; }
.forest__px { position: absolute; inset: 0; }
.forest__px svg { width: 100%; height: 100%; overflow: visible; }
.forest__layer .leaf, .forest__layer .shroom, .forest__layer .bush, .forest__layer .sigil,
.forest__layer .door__leaf, .forest__layer .door__inner { pointer-events: visiblePainted; }
.forest__layer--near .leaf { pointer-events: none; }

.fog { position: absolute; inset: -20% -40%; pointer-events: none; will-change: transform; }
.fog--back {
  background:
    radial-gradient(ellipse 30% 16% at 30% 72%, rgba(148, 197, 187, .08), transparent 70%),
    radial-gradient(ellipse 34% 18% at 72% 68%, rgba(148, 197, 187, .07), transparent 70%),
    radial-gradient(ellipse 50% 14% at 50% 82%, rgba(148, 197, 187, .06), transparent 70%);
  animation: drift 46s ease-in-out infinite alternate;
}
.fog--front {
  background:
    radial-gradient(ellipse 40% 20% at 22% 88%, rgba(156, 202, 193, .13), transparent 70%),
    radial-gradient(ellipse 36% 18% at 80% 84%, rgba(156, 202, 193, .1), transparent 70%),
    radial-gradient(ellipse 70% 30% at 50% 100%, rgba(128, 157, 177, .12), transparent 70%);
  opacity: .3;
  animation: drift 34s ease-in-out infinite alternate-reverse;
}
@keyframes drift { from { transform: translateX(-4%); } to { transform: translateX(4%); } }

.forest__shafts { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.forest__shafts i {
  position: absolute;
  top: -20%;
  width: 11vw;
  height: 130%;
  background: linear-gradient(180deg, rgba(142, 196, 224, .07), rgba(142, 196, 224, .02) 55%, transparent 80%);
  transform: rotate(16deg);
  transform-origin: top center;
  animation: shaft 13s ease-in-out infinite alternate;
}
.forest__shafts i:nth-child(1) { left: 38%; }
.forest__shafts i:nth-child(2) { left: 52%; width: 6vw; animation-delay: -5s; }
.forest__shafts i:nth-child(3) { left: 63%; width: 9vw; animation-delay: -9s; opacity: .7; }
@keyframes shaft { from { opacity: .35; } to { opacity: 1; } }

.forest__shadow {
  position: absolute;
  top: 25%;
  left: 0;
  width: 26vw;
  height: 60vh;
  background: radial-gradient(closest-side, rgba(0, 0, 0, .55), transparent);
  pointer-events: none;
  opacity: 0;
  animation: pass 41s linear 9s infinite;
}
@keyframes pass {
  0% { transform: translateX(-40vw); opacity: 0; }
  6% { opacity: 1; }
  22% { transform: translateX(120vw); opacity: 0; }
  100% { transform: translateX(120vw); opacity: 0; }
}

.forest__title {
  position: absolute;
  top: clamp(90px, 16vh, 170px);
  left: 0; right: 0;
  text-align: center;
  padding: 0 16px;
  pointer-events: none;
}
.forest__title h1 {
  margin: .25em 0 .2em;
  font-weight: 300;
  font-size: clamp(2.6rem, 7.6vw, 6.6rem);
  letter-spacing: .16em;
  text-indent: .16em;
  text-transform: uppercase;
  color: var(--c-8);
  text-shadow: 0 0 40px rgba(0, 0, 0, .8);
  line-height: 1;
}
.forest__title p { margin: 0; font-family: var(--fell); font-style: italic; color: var(--c-6); font-size: clamp(1rem, 2vw, 1.25rem); }
.forest__hint {
  position: absolute;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font: 500 10px/1 var(--sans);
  letter-spacing: .4em;
  text-transform: uppercase;
  color: var(--c-6);
  pointer-events: none;
}
.forest__hint i { display: block; width: 1px; height: 30px; background: linear-gradient(var(--c-6), transparent); transform-origin: top; animation: hint 2.8s ease-in-out infinite; }
@keyframes hint { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

.forest__flood {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  background: radial-gradient(circle at var(--ox, 50%) var(--oy, 62%), rgba(149, 213, 245, .9) 0%, rgba(59, 108, 194, .55) 16%, rgba(7, 22, 71, .92) 52%, #050b1b 100%);
}
.forest__interior { position: absolute; inset: 0; opacity: 0; pointer-events: none; background: #050b1b; }

/* Puerta */
.door__inscription { font-family: var(--fell); font-style: italic; font-size: 22px; letter-spacing: .24em; fill: var(--c-7); opacity: 0; }
.door__keyhole { animation: pulse 3.6s ease-in-out infinite; }
.door__seam, .door__under { animation: pulse 5s ease-in-out infinite; }
.door__lantern-glow { animation: flicker 3.2s infinite; transform-box: fill-box; transform-origin: center; }
.door__leaf { transition: filter .6s; }
.door-svg:hover .door__leaf { filter: brightness(1.25); }
@keyframes pulse { 0%, 100% { opacity: .45; } 50% { opacity: 1; } }
@keyframes flicker {
  0%, 100% { opacity: .85; transform: scale(1); }
  20% { opacity: .7; transform: scale(.96); }
  42% { opacity: 1; transform: scale(1.04); }
  64% { opacity: .78; }
  80% { opacity: .95; transform: scale(1.01); }
}

/* Símbolo tallado, hongos, arbusto */
.sigil path { stroke: #0b141e; transition: stroke 1.2s, filter 1.2s; }
.sigil:hover path { stroke: #1a334c; }
.sigil.is-lit path { stroke: var(--glow-green); filter: drop-shadow(0 0 5px rgba(153, 200, 191, .8)); }
.shroom__halo { animation: breathe-glow 6s ease-in-out infinite alternate; transition: opacity .6s; }
.shroom:nth-of-type(2n) .shroom__halo { animation-delay: -3s; }
.shroom:hover .shroom__halo { opacity: 1.6; animation-duration: 1.4s; }
.shroom__cap { transition: opacity .6s; }
.shroom:hover .shroom__cap { opacity: 1; }
@keyframes breathe-glow { from { opacity: .45; } to { opacity: 1; } }

.peeker { transform: translateY(80px); transition: transform 1.3s cubic-bezier(.6, 0, .2, 1); }
.peeker.is-up { transform: translateY(0); transition-duration: 1s; }
.peeker .c-eye, .peeker .c-glow { transform: none !important; opacity: 1; }
.bush__eyes { opacity: 0; animation: glimmer 13s ease-in-out 6s infinite; }
@keyframes glimmer {
  0%, 74% { opacity: 0; }
  76% { opacity: 1; }
  79% { opacity: .1; }
  81%, 86% { opacity: 1; }
  90%, 100% { opacity: 0; }
}

/* Luz que huye */
.wisp { position: absolute; left: 0; top: 0; width: 0; height: 0; z-index: 6; transition: opacity 1.2s; will-change: transform; }
.wisp i {
  position: absolute;
  width: 8px; height: 8px;
  margin: -4px 0 0 -4px;
  border-radius: 50%;
  background: #d5eefb;
  box-shadow: 0 0 10px 3px var(--wisp), 0 0 38px 12px rgba(115, 197, 238, .22);
  animation: wisp 2.2s ease-in-out infinite alternate;
}
.wisp::before { content: ''; position: absolute; width: 70px; height: 70px; margin: -35px 0 0 -35px; border-radius: 50%; }
.wisp.is-tired i { animation-duration: .9s; opacity: .7; }
.wisp.is-caught i { box-shadow: 0 0 18px 6px var(--wisp), 0 0 60px 20px rgba(115, 197, 238, .3); }
.wisp.is-gone, html.is-interior .wisp { opacity: 0; pointer-events: none; }
@keyframes wisp { from { transform: scale(.85); opacity: .75; } to { transform: scale(1.1); opacity: 1; } }

.no-gsap .forest { opacity: 1 !important; }

@media (max-width: 760px) {
  .intro__curtain { width: 80vw; }
  .intro__curtain--l { left: -22vw; }
  .intro__curtain--r { right: -22vw; }
  .forest__title { top: clamp(84px, 14vh, 140px); }
  .forest__title h1 { letter-spacing: .1em; text-indent: .1em; }
  .forest__shafts i { width: 22vw; }
}

@media (prefers-reduced-motion: reduce) {
  .whisper.is-on { animation: none; opacity: 1; transform: translateX(-50%); }
  .intro__word span { filter: none; }
}