/* =========================================================
   Diego & Celia — Constelación de nosotros
   Hoja de estilos. Las variables de :root son el sitio para
   cambiar colores, fuentes y ritmos sin tocar el resto del CSS.
   ========================================================= */

:root {
  /* Paleta */
  --bg-deep: #05060f;
  --bg-mid: #0b0e28;
  --bg-glow: #1c2054;
  --accent-gold: #e8c27a;
  --accent-rose: #f0a6c8;
  --accent-violet: #9089f0;
  --text-light: #f6f4ff;
  --text-dim: #aca9d1;
  --star-locked: #3a3d63;
  --card-bg: rgba(16, 18, 46, 0.85);
  --card-border: rgba(232, 194, 122, 0.25);

  /* Tipografía */
  --font-display: "Playfair Display", "Georgia", serif;
  --font-script: "Dancing Script", cursive;
  --font-body: "Inter", "Segoe UI", sans-serif;

  /* Ritmo */
  --radius-lg: 22px;
  --radius-md: 14px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.45s var(--ease);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100%;
  background: var(--bg-deep);
  color: var(--text-light);
  font-family: var(--font-body);
  overflow-x: hidden;
}

body.pre-journey {
  overflow-y: hidden;
}

body {
  position: relative;
}

button {
  font-family: inherit;
  cursor: pointer;
}

img {
  max-width: 100%;
  display: block;
}

.hidden {
  display: none !important;
}

/* ---------- Fondo de estrellas (canvas fijo) ---------- */

#bg-stars {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background: radial-gradient(
      ellipse at 20% 10%,
      var(--bg-glow) 0%,
      transparent 55%
    ),
    radial-gradient(ellipse at 80% 85%, var(--bg-glow) 0%, transparent 55%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-mid) 55%, var(--bg-deep) 100%);
}

/* ---------- Pantalla de intro ---------- */

#intro-screen,
#login-screen {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  min-height: 100dvh;
  max-height: 100vh;
  max-height: 100dvh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  justify-content: safe center;
  text-align: center;
  padding: 8vh 6vw;
  gap: 1.4rem;
  transition: opacity var(--transition), transform var(--transition);
}

#intro-screen.leaving,
#login-screen.leaving {
  opacity: 0;
  transform: scale(1.03);
  pointer-events: none;
}

#intro-screen.entering {
  animation: screen-in 0.8s var(--ease) both;
}

@keyframes screen-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Inicio de sesión ---------- */

.login-form {
  width: min(340px, 100%);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: left;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-violet);
}

.login-field input {
  width: 100%;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-light);
  font-family: var(--font-body);
  font-size: 1rem;
  letter-spacing: normal;
  text-transform: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.login-field input:focus {
  outline: none;
  border-color: var(--accent-gold);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 4px rgba(232, 194, 122, 0.15), 0 0 24px -6px rgba(232, 194, 122, 0.5);
}

.login-error {
  margin: 0;
  text-align: center;
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--accent-rose);
}

.login-form.shake {
  animation: shake 0.45s ease;
}

@keyframes shake {
  20%,
  60% {
    transform: translateX(-8px);
  }
  40%,
  80% {
    transform: translateX(8px);
  }
}

.intro-kicker {
  font-family: var(--font-script);
  color: var(--accent-rose);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  letter-spacing: 0.03em;
}

.intro-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  margin: 0;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-rose) 60%, var(--accent-violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
}

.intro-message {
  max-width: 46ch;
  color: var(--text-dim);
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  line-height: 1.6;
}

.intro-hint {
  font-size: 0.85rem;
  color: var(--text-dim);
  opacity: 0.75;
}

.btn-primary {
  margin-top: 0.6rem;
  padding: 0.95rem 2.4rem;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: linear-gradient(120deg, rgba(232, 194, 122, 0.18), rgba(144, 137, 240, 0.18));
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  box-shadow: 0 0 0 0 rgba(232, 194, 122, 0.4);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -8px rgba(232, 194, 122, 0.45);
  background: linear-gradient(120deg, rgba(232, 194, 122, 0.32), rgba(144, 137, 240, 0.32));
}

/* ---------- Escena de la constelación ---------- */

#constellation-scene {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  opacity: 0;
  transition: opacity var(--transition);
}

#constellation-scene.active {
  opacity: 1;
}

.scene-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 5vw;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(5, 6, 15, 0.85), rgba(5, 6, 15, 0));
}

.scene-title {
  font-family: var(--font-script);
  font-size: clamp(1.1rem, 2.6vw, 1.5rem);
  color: var(--accent-gold);
}

.scene-progress {
  font-size: 0.85rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.stage {
  position: relative;
  width: 100%;
  height: calc(100vh - 70px);
  height: calc(100dvh - 70px);
  padding: 0 14px 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* La caja mantiene la proporción de la imagen (941 x 1100) y encaja en pantalla */
.figure-box {
  position: relative;
  aspect-ratio: 941 / 1100;
  width: min(100%, calc((100vh - 120px) * 0.8555));
  width: min(100%, calc((100dvh - 120px) * 0.8555));
  max-width: 900px;
  transition: transform 1.4s var(--ease);
}

.figure-box.finale {
  transform: translateY(-14vh);
}

#figure-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.figure-box.finale #figure-canvas {
  animation: finale-glow 3.4s ease-in-out infinite alternate;
}

@keyframes finale-glow {
  from {
    filter: drop-shadow(0 0 3px rgba(232, 194, 122, 0.35));
  }
  to {
    filter: drop-shadow(0 0 10px rgba(232, 194, 122, 0.85)) brightness(1.12);
  }
}

#stars-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ---------- Estrella individual ---------- */

.star {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.star .glow {
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 194, 122, 0.55), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}

.star .core {
  position: relative;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--star-locked);
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

/* Las estrellas bloqueadas no existen para quien mira: la imagen final es sorpresa */
.star[data-state="locked"] {
  display: none;
}

.star[data-state="available"] {
  cursor: pointer;
  animation: star-in 1s var(--ease) both;
}
.star[data-state="available"] .core {
  width: 18px;
  height: 18px;
  background: var(--accent-gold);
  box-shadow: 0 0 18px 5px rgba(232, 194, 122, 0.7);
  animation: pulse-star 2.1s ease-in-out infinite;
}
.star[data-state="available"] .glow {
  opacity: 1;
  inset: -22px;
}

/* Una estrella ya descubierta se funde con la constelación */
.star[data-state="visited"] {
  cursor: pointer;
}
.star[data-state="visited"] .core {
  width: 10px;
  height: 10px;
  background: #fff3da;
  box-shadow: 0 0 10px 3px rgba(255, 233, 190, 0.75);
  transition: width 1.2s var(--ease), height 1.2s var(--ease), box-shadow 1.2s var(--ease);
}
.star[data-state="visited"] .glow {
  inset: -14px;
  opacity: 0.4;
  transition: opacity 1.2s var(--ease);
}

/* Cuando aparece la imagen completa, los puntos se funden con ella */
.figure-box.finale .star[data-state="visited"] .core {
  width: 6px;
  height: 6px;
  box-shadow: 0 0 6px 1px rgba(255, 233, 190, 0.6);
}
.figure-box.finale .star[data-state="visited"] .glow {
  opacity: 0.12;
}

@keyframes star-in {
  from {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.2);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

.star:hover .core,
.star:focus-visible .core {
  transform: scale(1.25);
}

.star .label {
  position: absolute;
  top: 130%;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.72rem;
  color: var(--text-dim);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.star[data-align="left"] .label {
  left: 0;
  transform: none;
}

.star[data-align="right"] .label {
  left: auto;
  right: 0;
  transform: none;
}

.star[data-state="available"] .label,
.star:hover .label {
  opacity: 1;
}

@keyframes pulse-star {
  0%,
  100% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1.35);
  }
}

/* ---------- Modal de recuerdo ---------- */

#modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5vw;
  background: rgba(4, 5, 13, 0.72);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

#modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  position: relative;
  width: min(480px, 100%);
  max-height: 88vh;
  max-height: 88dvh;
  overflow-y: auto;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  transform: translateY(18px) scale(0.97);
  opacity: 0;
  transition: transform var(--transition), opacity var(--transition);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.6);
}

#modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-close {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-light);
  font-size: 1.1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.modal-close:hover {
  background: rgba(255, 255, 255, 0.12);
}

.modal-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(135deg, var(--bg-glow), var(--bg-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
}

.modal-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-photo.portrait {
  aspect-ratio: auto;
  height: min(60vh, 520px);
  background: #05060f;
}

.modal-photo.portrait img {
  object-fit: contain;
}

.modal-photo.collage {
  aspect-ratio: auto;
  height: min(48vh, 340px);
  display: grid;
  gap: 4px;
  background: #05060f;
}

.modal-photo.collage img {
  min-width: 0;
}

.modal-photo .placeholder {
  text-align: center;
  color: var(--text-dim);
  padding: 1rem;
}

.modal-photo .placeholder .icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 0.4rem;
  opacity: 0.8;
}

.modal-date {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-violet);
  margin: 0 0 0.35rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  margin: 0 0 0.7rem;
  color: var(--text-light);
}

.modal-text {
  color: var(--text-dim);
  line-height: 1.65;
  font-size: 0.98rem;
  margin: 0;
}

.modal-clue {
  margin-top: 1.1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(232, 194, 122, 0.1);
  border: 1px dashed rgba(232, 194, 122, 0.4);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--accent-gold);
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
}

.modal-clue .icon {
  flex-shrink: 0;
}

.modal-next-hint {
  margin-top: 1.3rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  opacity: 0.8;
}

/* ---------- Pantalla final ---------- */

/* Panel inferior: deja la imagen final visible encima */
#final-screen {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 4.5rem 6vw 1.8rem;
  gap: 0.7rem;
  background: linear-gradient(to top, rgba(5, 6, 15, 0.96) 60%, rgba(5, 6, 15, 0));
  opacity: 0;
  transform: translateY(24px);
  pointer-events: none;
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
}

#final-screen.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

#confetti-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 14;
  pointer-events: none;
}

.final-kicker,
.final-note {
  margin: 0;
}

.final-kicker {
  font-family: var(--font-script);
  color: var(--accent-rose);
  font-size: clamp(1.2rem, 3vw, 1.6rem);
}

.final-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 5vw, 2.6rem);
  margin: 0;
  color: var(--text-light);
}

.final-message {
  max-width: 52ch;
  margin: 0;
  color: var(--text-dim);
  line-height: 1.6;
  font-size: clamp(0.92rem, 2vw, 1.05rem);
}

.final-note {
  font-size: 0.9rem;
  color: var(--accent-gold);
  opacity: 0.9;
}

.btn-ghost {
  margin-top: 0.8rem;
  padding: 0.75rem 1.8rem;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.9rem;
  transition: color var(--transition), border-color var(--transition);
}
.btn-ghost:hover {
  color: var(--text-light);
  border-color: var(--accent-gold);
}

/* ---------- Responsive ---------- */

@media (max-height: 720px) {
  #intro-screen,
  #login-screen {
    padding: 4vh 6vw;
    gap: 0.9rem;
  }

  .login-form {
    gap: 0.7rem;
  }
}

/* Pantallas anchas: la imagen se desplaza a la izquierda y el mensaje final va a la derecha */
@media (min-width: 900px) and (orientation: landscape) {
  .figure-box.finale {
    transform: translateX(-17vw);
  }

  #final-screen {
    left: auto;
    top: 0;
    right: 5vw;
    width: min(460px, 36vw);
    padding: 0;
    justify-content: center;
    align-items: flex-start;
    text-align: left;
    background: none;
    transform: translateX(24px);
  }

  #final-screen.active {
    transform: translateX(0);
  }
}

@media (max-width: 700px) {
  .scene-header {
    padding: 1rem 6vw;
  }

  .star {
    width: 54px;
    height: 54px;
  }

  .modal-card {
    padding: 1.3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}