@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,500;9..144,700&family=Handlee&display=swap');

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Handlee', cursive;
  background: #0a1628;
  overflow-x: hidden;
}

/* ── Intro ── */

.intro {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  position: relative;
  text-align: center;
  background: #0e6488;
}

.agua-linea {
  position: absolute;
  top: 44%;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(160,220,240,0.4), transparent);
  pointer-events: none;
}

.boya-intro {
  width: 70px;
  animation: flotar 3s ease-in-out infinite;
}

.boya-intro svg {
  width: 100%;
  filter: drop-shadow(0 6px 12px rgba(0,150,200,0.4));
}

@keyframes flotar {
  0%, 100% { transform: translateY(0px) rotate(-1deg); }
  50%       { transform: translateY(-12px) rotate(1deg); }
}

.intro h1 {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-variation-settings: "opsz" 144;
  font-size: 56px;
  letter-spacing: 1px;
  color: #D4EAF5;
  margin-top: 8px;
  font-style: italic;
}

.intro p {
  font-size: 17px;
  color: rgba(220,240,250,0.75);
  line-height: 1.6;
}

.hint {
  display: block;
  margin-top: 24px;
  font-size: 13px;
  letter-spacing: 3px;
  color: rgba(255,255,255,0.3);
  animation: parpadeo 2.5s ease-in-out infinite;
}

@keyframes parpadeo {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 0.7; }
}

/* ── Scroll driver ── */

.scroll-driver {
  height: 950vh;
  position: relative;
}

.ocean {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
}

/* ── Luz de superficie ── */

.luz {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 28% at 50% 0%, rgba(255,255,255,0.55) 0%, rgba(220,240,250,0.20) 35%, transparent 65%),
    linear-gradient(180deg, rgba(255,255,255,0.22) 0%, rgba(200,230,245,0.08) 18%, transparent 40%);
  transition: opacity 0.5s ease;
}

/* cielo — ocupa la mitad superior cuando se ve la superficie */
.cielo {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 50%;
  pointer-events: none;
  background: linear-gradient(180deg, #ffe9b8 0%, #ffd9a0 22%, #f5cfb0 48%, #d9e6ec 82%, transparent 100%);
  opacity: 0;
  transition: opacity 0.7s ease;
  z-index: 3;
  overflow: hidden;
}
.cielo.visible { opacity: 1; }

.sol {
  position: absolute;
  top: 28%;
  right: 28%;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff5b0 0%, #ffd86a 40%, rgba(255,200,80,0.2) 70%, transparent 100%);
  filter: blur(1px);
}

.nube {
  position: absolute;
  background: rgba(255,255,255,0.85);
  border-radius: 40px;
  filter: blur(3px);
}
.nube-1 {
  top: 30%;
  left: 8%;
  width: 110px;
  height: 18px;
  animation: derivar-nube 40s linear infinite;
}
.nube-2 {
  top: 55%;
  left: 60%;
  width: 80px;
  height: 14px;
  animation: derivar-nube 55s linear infinite reverse;
}
@keyframes derivar-nube {
  0%   { transform: translateX(0); }
  100% { transform: translateX(120px); }
}

/* línea de superficie con brillo / espuma */
.superficie {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 18px;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.7) 0%, rgba(180,220,235,0.3) 50%, transparent 100%);
  filter: blur(2px);
  transition: opacity 0.5s ease;
  z-index: 5;
}

/* barquito */
.barco {
  position: absolute;
  left: 50%;
  width: 220px;
  top: 38%;
  z-index: 6;
  pointer-events: none;
  transition: opacity 0.6s ease;
  filter: drop-shadow(0 4px 6px rgba(0,40,70,0.25));
  transform: translateX(-50%);
}

.barco-flota {
  animation: barcoflota 4s ease-in-out infinite;
}

.barco-flota svg { width: 100%; display: block; }

@keyframes barcoflota {
  0%, 100% { transform: translateY(0) rotate(-1.2deg); }
  50%      { transform: translateY(-4px) rotate(1.2deg); }
}

/* ── Profundidades ── */

.profundidades {
  position: absolute;
  right: 28px;
  top: 0;
  height: 100%;
  pointer-events: none;
}

.marca {
  position: absolute;
  right: 0;
  font-size: 11px;
  letter-spacing: 1px;
  color: rgba(160,210,230,0.3);
  transform: translateY(-50%);
}

.linea-prof {
  position: absolute;
  right: 0;
  width: 100vw;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(100,180,220,0.1));
}

/* ── Medidor de profundidad ── */

.profundimetro {
  position: absolute;
  bottom: 32px;
  right: 32px;
  text-align: right;
  pointer-events: none;
}

.profundimetro .numero {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-variation-settings: "opsz" 144;
  font-size: 64px;
  color: rgba(160,220,240,0.3);
  line-height: 1;
  letter-spacing: -2px;
}

.profundimetro .unidad {
  font-size: 13px;
  color: rgba(160,220,240,0.18);
  letter-spacing: 2px;
}

/* ── Perfil dibujado al subir ── */
.perfil {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%);
  width: clamp(420px, 78vw, 880px);
  height: 50%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: 4;
}
.perfil.activo { opacity: 1; }

#perfil-path {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  filter: drop-shadow(0 0 4px rgba(100,220,255,0.6));
}
#perfil-sal {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  filter: drop-shadow(0 0 4px rgba(255,182,112,0.5));
}

/* ── Boya ── */

.boya {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  top: 12%;
  z-index: 10;
  transition: filter 0.5s ease;
}

.boya svg { width: 100%; }

.boya.midiendo {
  filter: drop-shadow(0 0 14px rgba(100,220,255,0.8));
}

/* ── Ballena ── */

.ballena {
  position: absolute;
  right: 8%;
  width: 220px;
  opacity: 0;
  transition: opacity 1.2s ease;
  pointer-events: none;
  top: 65%;
  animation: nadar-ballena 18s ease-in-out infinite;
}

@keyframes nadar-ballena {
  0%   { transform: translate(0, 0) rotate(-2deg); }
  25%  { transform: translate(-60px, 8px) rotate(1deg); }
  50%  { transform: translate(-100px, -10px) rotate(-1deg); }
  75%  { transform: translate(-50px, 6px) rotate(2deg); }
  100% { transform: translate(0, 0) rotate(-2deg); }
}

.ballena.visible { opacity: 1; }

/* ── Otros bichos ── */
.bicho {
  position: absolute;
  opacity: 0;
  transition: opacity 1s ease;
  pointer-events: none;
}
.bicho.visible { opacity: 1; }
.bicho svg { width: 100%; display: block; }

#peces   { right: 8%;  width: 140px; top: 56%; animation: nadar-der 14s ease-in-out infinite; }
#medusa  { right: 12%; width: 80px;  top: 60%; animation: flotar-med 6s ease-in-out infinite; }
#calamar { left: 12%;  width: 90px;  top: 72%; animation: nadar-izq 12s ease-in-out infinite; }
#abisal  { right: 14%; width: 150px; top: 84%; animation: rondar 10s ease-in-out infinite; }
#tortuga { left: 18%;  width: 110px; top: 55%; animation: nadar-der 22s ease-in-out infinite; }
#delfines{ left: 8%;   width: 160px; top: 54%; animation: nadar-der 18s ease-in-out infinite; }
#krill   { right: 18%; width: 100px; top: 70%; animation: flotar-med 9s ease-in-out infinite; }
#estrella{ left: 24%;  width: 36px;  top: 92%; }

@keyframes nadar-der {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(-30px); }
}
@keyframes nadar-izq {
  0%, 100% { transform: translateX(0) rotate(2deg); }
  50%      { transform: translateX(20px) rotate(-2deg); }
}
@keyframes flotar-med {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
@keyframes rondar {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(-25px); }
}

/* ── Etapas ── */

.etapa {
  position: absolute;
  left: 8%;
  max-width: 280px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
  z-index: 8;
}

.etapa.visible {
  opacity: 1;
  transform: translateY(0);
}

.etapa-num {
  font-size: 11px;
  letter-spacing: 4px;
  color: rgba(100,200,220,0.45);
  margin-bottom: 6px;
}

.etapa h2 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-variation-settings: "opsz" 144;
  font-size: 32px;
  color: #D4EAF5;
  margin-bottom: 10px;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.etapa p {
  font-size: 14px;
  color: rgba(180,220,240,0.6);
  line-height: 1.65;
}

/* texto oscuro cuando la cámara está en la superficie */
.ocean.superficie-modo .etapa h2 { color: #04253a; }
.ocean.superficie-modo .etapa p  { color: rgba(4, 37, 58, 0.82); }
.ocean.superficie-modo .etapa-num { color: rgba(4, 37, 58, 0.7); }
.ocean.superficie-modo #e6 .etapa-num { color: rgba(4, 37, 58, 0.7); }
.ocean.superficie-modo .marca,
.ocean.superficie-modo .profundimetro .numero,
.ocean.superficie-modo .profundimetro .unidad { color: rgba(4, 37, 58, 0.5); }
.ocean.superficie-modo .dato { color: rgba(4, 37, 58, 0.6) !important; }

.dato {
  margin-top: 14px;
  font-size: 12px !important;
  color: rgba(100,200,220,0.55) !important;
  letter-spacing: 0.5px;
}

#e0 { top: 18%; }
#e1 { top: 22%; }
#e2 { top: 40%; }
#e3 { top: 70%; }
#e4 { top: 40%; }
#e5 { top: 32%; }
#e6 { top: 32%; }

/* ── Outro / placa de cierre ── */
.outro {
  min-height: 100vh;
  background: linear-gradient(180deg, #0a1628 0%, #061322 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 32px;
  position: relative;
  overflow: hidden;
}

/* flota de boyas mini en el fondo */
.flota {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.mini-boya {
  position: absolute;
  opacity: 0.25;
  filter: drop-shadow(0 0 8px rgba(122,217,255,0.3));
}

.mini-boya.b1 { width: 18px; left: 8%;  top: 18%; animation: flotar-mini 5s ease-in-out infinite; }
.mini-boya.b2 { width: 14px; left: 18%; top: 65%; animation: flotar-mini 7s ease-in-out infinite 0.5s; opacity: 0.18; }
.mini-boya.b3 { width: 22px; left: 80%; top: 22%; animation: flotar-mini 6s ease-in-out infinite 1s; }
.mini-boya.b4 { width: 16px; left: 88%; top: 70%; animation: flotar-mini 8s ease-in-out infinite 1.5s; opacity: 0.2; }
.mini-boya.b5 { width: 12px; left: 4%;  top: 78%; animation: flotar-mini 9s ease-in-out infinite 2s; opacity: 0.15; }
.mini-boya.b6 { width: 20px; left: 92%; top: 45%; animation: flotar-mini 7.5s ease-in-out infinite 0.8s; opacity: 0.22; }

@keyframes flotar-mini {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%      { transform: translateY(-12px) rotate(2deg); }
}

.burbuja {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(122,217,255,0.6) 0%, rgba(122,217,255,0.15) 60%, transparent 100%);
  bottom: -10px;
}

.burbuja.bu1 { left: 12%; animation: subir-burbuja 8s ease-in infinite; }
.burbuja.bu2 { left: 28%; width: 4px; height: 4px; animation: subir-burbuja 11s ease-in infinite 2s; }
.burbuja.bu3 { left: 45%; width: 8px; height: 8px; animation: subir-burbuja 9s ease-in infinite 4s; }
.burbuja.bu4 { left: 62%; animation: subir-burbuja 12s ease-in infinite 1s; }
.burbuja.bu5 { left: 78%; width: 5px; height: 5px; animation: subir-burbuja 10s ease-in infinite 3s; }
.burbuja.bu6 { left: 90%; width: 3px; height: 3px; animation: subir-burbuja 14s ease-in infinite 5s; }

@keyframes subir-burbuja {
  0%   { transform: translateY(0)        translateX(0); opacity: 0; }
  10%  { opacity: 0.7; }
  80%  { opacity: 0.5; }
  100% { transform: translateY(-110vh)   translateX(20px); opacity: 0; }
}

.outro-content { position: relative; z-index: 1; }

.outro::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(180deg, rgba(170,215,232,0.6) 0%, transparent 100%);
  pointer-events: none;
}

.outro-content {
  text-align: center;
  max-width: 620px;
  color: #D4EAF5;
}

.outro-marca {
  font-family: 'Handlee', cursive;
  font-size: 14px;
  letter-spacing: 6px;
  color: #7ad9ff;
  margin: 0 0 18px;
  text-transform: uppercase;
}

.outro-main {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-style: italic;
  font-variation-settings: "opsz" 144;
  font-size: clamp(34px, 6vw, 60px);
  color: #D4EAF5;
  margin: 0 0 24px;
  line-height: 1.15;
  letter-spacing: -0.5px;
}

.outro-list {
  font-family: 'Handlee', cursive;
  font-size: clamp(15px, 2vw, 18px);
  color: #ffb670;
  letter-spacing: 2px;
  margin: 0 0 40px;
}

.outro-data {
  font-family: 'Handlee', cursive;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.9;
  color: rgba(212, 234, 245, 0.85);
  margin: 0 0 32px;
}

.outro-resumen {
  font-family: 'Handlee', cursive;
  font-size: clamp(14px, 1.8vw, 16px);
  line-height: 1.6;
  color: rgba(122, 217, 255, 0.75);
  letter-spacing: 0.5px;
  margin: 0 0 36px;
}

.outro-cita {
  font-family: 'Fraunces', serif;
  font-weight: 300;
  font-style: italic;
  font-size: clamp(14px, 1.6vw, 17px);
  line-height: 1.5;
  color: rgba(122, 217, 255, 0.7);
  margin: 0 0 60px;
}

.outro-botones {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin: 0 0 56px;
}

.outro-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 22px;
  border: 1px solid rgba(122, 217, 255, 0.35);
  border-radius: 12px;
  background: rgba(122, 217, 255, 0.05);
  color: #D4EAF5;
  text-decoration: none;
  font-family: 'Handlee', cursive;
  transition: background 0.3s, border-color 0.3s, transform 0.2s, box-shadow 0.3s;
  min-width: 160px;
}

.outro-btn:hover {
  background: rgba(122, 217, 255, 0.15);
  border-color: rgba(122, 217, 255, 0.7);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(122, 217, 255, 0.18);
}

.outro-btn .btn-label {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: 19px;
  letter-spacing: 0.5px;
}

.outro-btn .btn-sub {
  font-size: 12px;
  color: rgba(212, 234, 245, 0.55);
  letter-spacing: 1px;
}

.outro-firma {
  border-top: 1px solid rgba(122, 217, 255, 0.18);
  padding-top: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.outro-firma h3 {
  font-family: 'Handlee', cursive;
  font-size: 16px;
  font-weight: normal;
  color: rgba(212, 234, 245, 0.7);
  letter-spacing: 3px;
  margin: 0;
}

.outro-icons {
  display: flex;
  gap: 8px;
}

.outro-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(122, 217, 255, 0.08);
  color: rgba(212, 234, 245, 0.6);
  text-decoration: none;
  transition: background 0.3s, color 0.3s, transform 0.2s;
}

.outro-icons a svg {
  width: 16px;
  height: 16px;
}

.outro-icons a:hover {
  background: rgba(122, 217, 255, 0.2);
  color: #7ad9ff;
  transform: translateY(-3px);
}


/* ── Transmisión de datos ── */
/* anclado exactamente en la punta de la antena de la boya */
.transmision {
  position: absolute;
  left: 50%;
  top: 47.5%;
  width: 0;
  height: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.6s ease;
  z-index: 6;
}
.transmision.visible { opacity: 1; }

.dato-paquete {
  position: absolute;
  left: -4px;
  top: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow:
    0 0 6px rgba(255,255,255,1),
    0 0 14px rgba(0,229,255,0.9),
    0 0 24px rgba(0,150,220,0.6);
  animation: transmitir 2.4s ease-in infinite;
  opacity: 0;
}
.d1 { animation-delay: 0s;    }
.d2 { animation-delay: 0.6s;  }
.d3 { animation-delay: 1.2s;  }
.d4 { animation-delay: 1.8s;  }

/* viaja desde (0,0) — la antena de la boya — hasta el satélite arriba lejos */
@keyframes transmitir {
  0%   { transform: translate(0, 0) scale(0.5);   opacity: 0; }
  10%  { transform: translate(2vw, -4vh) scale(0.9); opacity: 1; }
  90%  { opacity: 0.85; }
  100% { transform: translate(22vw, -52vh) scale(0.7); opacity: 0; }
}

/* ── Satélite ── */
.satelite {
  position: absolute;
  top: 6%;
  right: 18%;
  width: 80px;
  opacity: 0;
  transition: opacity 0.8s ease;
  pointer-events: none;
  filter: drop-shadow(0 0 12px rgba(255,182,112,0.4));
  animation: orbitar 14s ease-in-out infinite;
  z-index: 7;
}
.satelite.visible { opacity: 1; }
.satelite svg { width: 100%; display: block; }
.satelite .ondas path { animation: pulso-onda 2s ease-out infinite; transform-origin: 70px 22px; }
.satelite .ondas path:nth-child(2) { animation-delay: 0.4s; }
.satelite .ondas path:nth-child(3) { animation-delay: 0.8s; }

@keyframes orbitar {
  0%, 100% { transform: translate(0, 0); }
  50%      { transform: translate(-40px, 8px); }
}
@keyframes pulso-onda {
  0%   { opacity: 0; }
  40%  { opacity: 0.9; }
  100% { opacity: 0; }
}