/* =========================================================
   JESSICA & MARCOS — TIMELINE PREMIUM V4 / FASE 3
   Línea dibujada, eventos sincronizados y animación fluida
   ========================================================= */

.timeline-premium-section {
  --timeline-progress: 0;
  position: relative;
  overflow: hidden;
  padding-top: clamp(86px, 10vw, 136px);
  padding-bottom: clamp(92px, 11vw, 152px);
  background:
    radial-gradient(circle at 15% 20%, rgba(118, 133, 101, .08), transparent 29%),
    radial-gradient(circle at 86% 84%, rgba(203, 196, 180, .16), transparent 34%),
    var(--cream);
}

.timeline-premium-section::before,
.timeline-premium-section::after {
  content: "";
  position: absolute;
  width: clamp(180px, 28vw, 420px);
  aspect-ratio: 1;
  border: 1px solid rgba(88, 104, 74, .09);
  border-radius: 50%;
  pointer-events: none;
}

.timeline-premium-section::before {
  left: -13%;
  top: 6%;
}

.timeline-premium-section::after {
  right: -15%;
  bottom: 0;
}

.timeline-premium-heading {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto clamp(58px, 8vw, 96px);
  text-align: center;
}

.timeline-premium-intro {
  max-width: 540px;
  margin: 14px auto 0;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
  font-style: italic;
  color: rgba(55, 67, 49, .72);
}

.timeline-premium {
  position: relative;
  z-index: 2;
  width: min(1180px, 92vw);
  margin: 0 auto;
  padding: 28px 0 16px;
}

.timeline-track {
  position: absolute;
  top: 70px;
  left: 8%;
  right: 8%;
  height: 3px;
  pointer-events: none;
}

.timeline-track-base,
.timeline-track-progress,
.timeline-track-glow {
  position: absolute;
  inset: 0;
  display: block;
  border-radius: 999px;
}

.timeline-track-base {
  background:
    linear-gradient(
      90deg,
      rgba(83, 98, 70, .10),
      rgba(83, 98, 70, .26),
      rgba(83, 98, 70, .10)
    );
}

.timeline-track-progress {
  width: calc(var(--timeline-progress) * 100%);
  right: auto;
  background:
    linear-gradient(
      90deg,
      var(--olive),
      #8c9b7c 58%,
      #c8c2b3
    );
  box-shadow:
    0 0 10px rgba(78, 94, 66, .25),
    0 0 22px rgba(78, 94, 66, .12);
  transition: width .14s linear;
  will-change: width;
}

.timeline-track-glow {
  width: 84px;
  right: auto;
  left: calc(var(--timeline-progress) * 100% - 42px);
  opacity: calc(var(--timeline-progress) * 1);
  background:
    radial-gradient(
      circle,
      rgba(255,255,255,.95) 0 8%,
      rgba(209, 216, 198, .80) 18%,
      rgba(115, 133, 100, .35) 42%,
      transparent 72%
    );
  filter: blur(1px);
  transform: translateX(-50%);
  transition:
    left .14s linear,
    opacity .3s ease;
  will-change: left;
}

.timeline-events {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  align-items: start;
  gap: clamp(14px, 2vw, 30px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline-event {
  position: relative;
  min-width: 0;
  text-align: center;
  opacity: .35;
  transform: translateY(26px);
  transition:
    opacity .72s cubic-bezier(.16,1,.3,1),
    transform .72s cubic-bezier(.16,1,.3,1);
  transition-delay: var(--event-delay, 0ms);
}

.timeline-event.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.timeline-marker {
  position: relative;
  z-index: 4;
  width: 42px;
  height: 42px;
  margin: 21px auto 28px;
  display: grid;
  place-items: center;
}

.timeline-marker-ring,
.timeline-marker-core {
  position: absolute;
  border-radius: 50%;
}

.timeline-marker-ring {
  inset: 0;
  border: 1px solid rgba(78, 94, 66, .30);
  background: rgba(255, 253, 248, .75);
  box-shadow:
    0 0 0 6px rgba(255,253,248,.74),
    0 8px 22px rgba(49,57,43,.08);
  transform: scale(.72);
  transition:
    transform .55s cubic-bezier(.16,1,.3,1),
    border-color .35s ease,
    box-shadow .45s ease;
}

.timeline-marker-core {
  width: 10px;
  height: 10px;
  background: rgba(78, 94, 66, .38);
  transform: scale(.72);
  transition:
    transform .5s cubic-bezier(.16,1,.3,1),
    background-color .35s ease;
}

.timeline-event.is-revealed .timeline-marker-ring {
  transform: scale(1);
  border-color: rgba(78, 94, 66, .70);
}

.timeline-event.is-revealed .timeline-marker-core {
  transform: scale(1);
  background: var(--olive);
}

.timeline-event.is-active .timeline-marker-ring {
  transform: scale(1.12);
  border-color: var(--olive);
  box-shadow:
    0 0 0 7px rgba(255,253,248,.86),
    0 0 0 11px rgba(91,108,76,.09),
    0 12px 28px rgba(49,57,43,.15);
}

.timeline-event.is-active .timeline-marker-core {
  transform: scale(1.28);
}

.timeline-card {
  position: relative;
  min-height: 260px;
  padding: 31px 22px 25px;
  border: 1px solid rgba(86, 101, 74, .13);
  border-radius: 2px;
  background:
    linear-gradient(
      150deg,
      rgba(255,255,255,.72),
      rgba(255,253,248,.38)
    );
  box-shadow:
    0 18px 44px rgba(47, 56, 40, .07),
    inset 0 1px 0 rgba(255,255,255,.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  overflow: hidden;
  opacity: 0;
  filter: blur(8px);
  transform: translateY(22px) scale(.97);
  transition:
    opacity .76s cubic-bezier(.16,1,.3,1),
    filter .76s cubic-bezier(.16,1,.3,1),
    transform .76s cubic-bezier(.16,1,.3,1),
    box-shadow .45s ease;
}

.timeline-event.is-revealed .timeline-card {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0) scale(1);
}

.timeline-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      120deg,
      transparent 28%,
      rgba(255,255,255,.48) 48%,
      transparent 68%
    );
  transform: translateX(-130%);
  opacity: 0;
}

.timeline-event.is-active .timeline-card::before {
  animation: timelineCardShine 1.15s ease both;
}

.timeline-event.is-active .timeline-card {
  box-shadow:
    0 26px 58px rgba(47, 56, 40, .12),
    inset 0 1px 0 rgba(255,255,255,.90);
}

.timeline-event-number {
  position: absolute;
  top: 13px;
  right: 15px;
  font-family: "EB Garamond", serif;
  font-size: .88rem;
  letter-spacing: .14em;
  color: rgba(73, 88, 62, .35);
}

.timeline-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 17px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(80, 96, 67, .16);
  border-radius: 50%;
  color: var(--olive);
  background: rgba(255,255,255,.45);
  transform: scale(.78) rotate(-5deg);
  transition:
    transform .65s cubic-bezier(.16,1,.3,1),
    background-color .35s ease;
}

.timeline-event.is-revealed .timeline-icon {
  transform: scale(1) rotate(0);
}

.timeline-event.is-active .timeline-icon {
  animation: timelineIconPulse .78s cubic-bezier(.16,1,.3,1);
  background: rgba(238, 241, 232, .82);
}

.timeline-icon svg {
  width: 24px;
  height: 24px;
  stroke-width: 1.35;
}

.timeline-card time {
  display: block;
  margin-bottom: 7px;
  font-family: "Montserrat", sans-serif;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--olive-dark);
}

.timeline-card h3 {
  margin: 0 0 10px;
  font-family: "Cormorant Garamond", serif;
  font-size: clamp(1.28rem, 2vw, 1.58rem);
  font-weight: 500;
  line-height: 1.05;
  color: var(--olive-dark);
}

.timeline-card p {
  margin: 0;
  font-size: .84rem;
  line-height: 1.65;
  color: rgba(57, 66, 51, .72);
}

/* Anula la línea antigua creada por la Fase 1 */
.timeline-premium-section .timeline::after,
.timeline-premium-section .timeline > div::after {
  display: none !important;
}

/* =========================================================
   ANIMACIONES
   ========================================================= */

@keyframes timelineIconPulse {
  0% { transform: scale(1); }
  45% { transform: scale(1.12) rotate(2deg); }
  100% { transform: scale(1); }
}

@keyframes timelineCardShine {
  0% {
    opacity: 0;
    transform: translateX(-130%);
  }
  28% {
    opacity: .72;
  }
  100% {
    opacity: 0;
    transform: translateX(130%);
  }
}

/* =========================================================
   TABLET Y MÓVIL: LÍNEA VERTICAL
   ========================================================= */

@media (max-width: 900px) {
  .timeline-premium {
    width: min(720px, 92vw);
    padding-left: 8px;
  }

  .timeline-track {
    top: 26px;
    bottom: 26px;
    left: 29px;
    right: auto;
    width: 3px;
    height: auto;
  }

  .timeline-track-progress {
    width: 100%;
    height: calc(var(--timeline-progress) * 100%);
    bottom: auto;
  }

  .timeline-track-glow {
    width: 74px;
    height: 74px;
    left: 50%;
    top: calc(var(--timeline-progress) * 100% - 37px);
    transform: translate(-50%, -50%);
    transition:
      top .14s linear,
      opacity .3s ease;
  }

  .timeline-events {
    display: flex;
    flex-direction: column;
    gap: 22px;
  }

  .timeline-event {
    display: grid;
    grid-template-columns: 58px 1fr;
    align-items: center;
    gap: 16px;
    text-align: left;
  }

  .timeline-marker {
    grid-column: 1;
    grid-row: 1;
    width: 42px;
    height: 42px;
    margin: 0 auto;
  }

  .timeline-card {
    grid-column: 2;
    grid-row: 1;
    min-height: auto;
    padding: 27px 25px 25px;
  }

  .timeline-icon {
    margin: 0 0 15px;
  }
}

@media (max-width: 560px) {
  .timeline-premium-section {
    padding-left: 14px;
    padding-right: 14px;
  }

  .timeline-premium-heading {
    margin-bottom: 42px;
  }

  .timeline-track {
    left: 21px;
  }

  .timeline-event {
    grid-template-columns: 42px 1fr;
    gap: 12px;
  }

  .timeline-marker {
    width: 34px;
    height: 34px;
  }

  .timeline-marker-ring {
    box-shadow:
      0 0 0 4px rgba(255,253,248,.80),
      0 7px 18px rgba(49,57,43,.08);
  }

  .timeline-event.is-active .timeline-marker-ring {
    box-shadow:
      0 0 0 5px rgba(255,253,248,.88),
      0 0 0 8px rgba(91,108,76,.08);
  }

  .timeline-card {
    padding: 25px 20px 22px;
  }

  .timeline-card p {
    font-size: .80rem;
  }
}

/* =========================================================
   ACCESIBILIDAD
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  .timeline-premium-section {
    --timeline-progress: 1 !important;
  }

  .timeline-event,
  .timeline-card,
  .timeline-marker-ring,
  .timeline-marker-core,
  .timeline-icon,
  .timeline-track-progress,
  .timeline-track-glow {
    opacity: 1 !important;
    filter: none !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
  }

  .timeline-track-progress {
    width: 100% !important;
  }

  .timeline-event {
    opacity: 1 !important;
  }

  @media (max-width: 900px) {
    .timeline-track-progress {
      height: 100% !important;
      width: 100% !important;
    }
  }
}


/* =========================================================
   CORRECCIÓN FASE 4 · ITINERARIO SIEMPRE COMPLETO
   ========================================================= */

.timeline-premium-section .timeline-event,
.timeline-premium-section .timeline-card {
  opacity: 1;
  filter: none;
  transform: translateY(0);
}

.timeline-premium-section .timeline-marker-ring,
.timeline-premium-section .timeline-marker-core,
.timeline-premium-section .timeline-icon {
  opacity: 1;
}

@media (min-width: 901px) {
  .timeline-premium {
    width: min(1280px, 96vw);
  }

  .timeline-events {
    gap: clamp(10px, 1.45vw, 24px);
  }

  .timeline-card {
    padding-left: clamp(14px, 1.6vw, 22px);
    padding-right: clamp(14px, 1.6vw, 22px);
  }
}


/* =========================================================
   PRIORIDAD 1 · CORRECCIÓN FUNCIONAL DEL ITINERARIO
   Entrega 2.4
   - Línea alineada con el centro de los marcadores
   - Tarjetas uniformes y simétricas
   - Distribución estable en escritorio, tablet y móvil
   ========================================================= */

@media (min-width: 901px) {
  .timeline-premium {
    width: min(1180px, 92vw);
    padding-top: 0;
    padding-bottom: 16px;
  }

  .timeline-track {
    /* El centro del marcador está a 42px:
       21px de margen superior + 21px de radio. */
    top: 40.5px;
    left: 10%;
    right: 10%;
    height: 3px;
  }

  .timeline-events {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: stretch;
    gap: clamp(14px, 1.8vw, 28px);
  }

  .timeline-event {
    display: flex;
    min-width: 0;
    flex-direction: column;
    align-items: stretch;
    margin: 0;
  }

  .timeline-marker {
    flex: 0 0 42px;
    margin: 20px auto 28px;
  }

  .timeline-card {
    width: 100%;
    min-height: 270px;
    height: 100%;
    margin: 0;
    padding-left: clamp(15px, 1.6vw, 22px);
    padding-right: clamp(15px, 1.6vw, 22px);
  }
}

@media (max-width: 900px) {
  .timeline-premium {
    width: min(720px, 92vw);
    padding-left: 0;
  }

  .timeline-track {
    left: 29px;
  }

  .timeline-event {
    grid-template-columns: 58px minmax(0, 1fr);
    align-items: center;
  }

  .timeline-card {
    width: 100%;
    margin: 0;
  }
}

@media (max-width: 560px) {
  .timeline-premium {
    width: 100%;
  }

  .timeline-track {
    left: 21px;
  }

  .timeline-event {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .timeline-card {
    min-width: 0;
  }
}


/* =========================================================
   ENTREGA 2.4.1 · CORRECCIÓN REAL DE CUADRÍCULA
   ========================================================= */
.timeline-premium,
.timeline-premium *,
.timeline-premium *::before,
.timeline-premium *::after {
  box-sizing: border-box;
}

@media (min-width: 901px) {
  .timeline-premium {
    width: min(1440px, calc(100vw - 96px));
    max-width: 100%;
    overflow: visible;
    padding-inline: 0;
  }

  .timeline-events {
    --timeline-gap: clamp(16px, 1.35vw, 24px);
    width: 100%;
    gap: var(--timeline-gap);
  }

  .timeline-event {
    width: 100%;
    min-width: 0;
  }

  .timeline-card {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 276px;
  }

  .timeline-track {
    top: var(--timeline-track-top, 40.5px);
    left: var(--timeline-track-left, 10%);
    right: var(--timeline-track-right, 10%);
  }
}

@media (min-width: 901px) and (max-width: 1240px) {
  .timeline-premium {
    width: min(1120px, calc(100vw - 48px));
  }

  .timeline-events {
    --timeline-gap: 14px;
  }

  .timeline-card {
    padding-left: 14px;
    padding-right: 14px;
  }

  .timeline-card h3 {
    font-size: 1.3rem;
  }

  .timeline-card p {
    font-size: .79rem;
  }
}

@media (max-width: 900px) {
  .timeline-premium,
  .timeline-events,
  .timeline-event,
  .timeline-card {
    max-width: 100%;
    min-width: 0;
  }
}