/* === Sección 5 Estructura - Rediseño ultra creativo, profesional, con imágenes circulares === */
.structure {
  --struct-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --struct-duration: 0.5s;
  display: block;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #2c2c2c 0%, #3a3a38 35%, #4a4a45 70%, #5a5a52 100%);
  padding: 6rem 2rem 7rem;
  min-height: 100vh;
}
@media (max-width: 767px) {
  .structure {
    padding: 4rem 1.5rem 5rem;
    min-height: auto;
  }
}

/* Elementos decorativos de fondo */
.structure::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(196, 184, 150, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.structure::after {
  content: "";
  position: absolute;
  bottom: -15%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(140, 133, 87, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.structure__container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Header: centrado, tipografía grande y destacada con más espaciado */
.structure__header {
  text-align: center;
  margin-bottom: 5rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
@media (max-width: 767px) {
  .structure__header {
    margin-bottom: 3rem;
  }
}

.structure__eyebrow {
  font-family: "Walkway", sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: #C4B896;
  margin: 0 0 1rem;
  opacity: 0;
  animation: structFadeUp 0.7s var(--struct-ease) 0.1s forwards;
}

.structure__title {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  line-height: 1.1;
}

.structure__title-main {
  display: block;
  font-family: "Editor's Note", serif;
  font-weight: 200;
  font-size: clamp(2.75rem, 6vw, 4.25rem);
  color: #fff;
  letter-spacing: 0.02em;
  opacity: 0;
  animation: structFadeUp 0.8s var(--struct-ease) 0.2s forwards;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.structure__title-main em {
  font-family: "Editor's Note", serif;
  font-style: italic;
  font-weight: 200;
  color: #E8E2D5;
}

.structure__title-sub {
  font-family: "Montserrat", sans-serif;
  font-weight: 200;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.02em;
  opacity: 0;
  animation: structFadeUp 0.8s var(--struct-ease) 0.35s forwards;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.25);
}

.structure__icon {
  display: none;
}

@keyframes structFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Intro: texto centrado, color claro con más espaciado */
.structure__content {
  position: relative;
}

.structure__intro {
  margin: 0 auto 5rem;
  max-width: 680px;
  text-align: center;
}
@media (max-width: 767px) {
  .structure__intro {
    margin-bottom: 3.5rem;
  }
}

.structure__subtitle {
  font-family: "Walkway", sans-serif;
  font-weight: 700;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  color: #E8E2D5;
  line-height: 1.4;
  margin: 0 0 1.25rem;
  opacity: 0;
  animation: structFadeUp 0.8s var(--struct-ease) 0.45s forwards;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.structure__intro-text {
  font-family: "Montserrat", sans-serif;
  font-weight: 200;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  opacity: 0;
  animation: structFadeUp 0.8s var(--struct-ease) 0.55s forwards;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* Grid: lista sin cajas, números circulares con más espaciado */
.structure__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem 2.5rem;
  margin-bottom: 5rem;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}
@media (max-width: 767px) {
  .structure__grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    margin-bottom: 3.5rem;
  }
}

/* Card: número circular + texto con más padding */
.structure__card {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.25rem 1rem 1.25rem 1.75rem;
  background: transparent;
  border: none;
  border-left: 3px solid rgba(232, 226, 213, 0.4);
  transition: border-color var(--struct-duration) var(--struct-ease),
    transform var(--struct-duration) var(--struct-ease),
    padding-left var(--struct-duration) var(--struct-ease);
  opacity: 0;
  animation: structSlideIn 0.7s var(--struct-ease) forwards;
}

.structure__card:nth-child(odd) {
  animation-name: structSlideInLeft;
}
.structure__card:nth-child(even) {
  animation-name: structSlideInRight;
}

@keyframes structSlideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes structSlideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.structure__card:nth-child(1) { animation-delay: 0.65s; }
.structure__card:nth-child(2) { animation-delay: 0.75s; }
.structure__card:nth-child(3) { animation-delay: 0.85s; }
.structure__card:nth-child(4) { animation-delay: 0.95s; }
.structure__card:nth-child(5) { animation-delay: 1.05s; }
.structure__card:nth-child(6) { animation-delay: 1.15s; }
.structure__card:nth-child(7) { animation-delay: 1.25s; }
.structure__card:nth-child(8) { animation-delay: 1.35s; }

.structure__card:hover {
  border-color: #C4B896;
  padding-left: 2rem;
  transform: translateX(6px);
}

/* Número circular: mismo estilo que Metodología */
.structure__card-icon {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Walkway", sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: #E8E2D5;
  border: 2px solid #E8E2D5;
  border-radius: 50%;
  background: transparent;
  transition: color var(--struct-duration) var(--struct-ease),
    border-color var(--struct-duration) var(--struct-ease),
    background var(--struct-duration) var(--struct-ease),
    transform var(--struct-duration) var(--struct-ease);
}

.structure__card:hover .structure__card-icon {
  color: #2c2c2c;
  background: rgba(232, 226, 213, 0.5);
  border-color: #C4B896;
  transform: scale(1.08) rotate(5deg);
}

/* No usar imágenes ni SVG */
.structure__card-icon img,
.structure__card-svg {
  display: none;
}

/* Contenido de la tarjeta */
.structure__card-content {
  flex: 1;
  min-width: 0;
}

.structure__card-title {
  font-family: "Walkway", sans-serif;
  font-weight: 700;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  color: #E8E2D5;
  margin: 0 0 0.75rem;
  letter-spacing: 0.02em;
  line-height: 1.3;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.structure__card-text {
  font-family: "Montserrat", sans-serif;
  font-weight: 200;
  font-size: clamp(0.9rem, 1.3vw, 1rem);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
  margin: 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.structure__card-text strong {
  font-weight: 600;
  color: #C4B896;
}

/* Continuation: caja destacada con fondo dorado/verde */
.structure__continuation {
  padding: 2.5rem 3rem;
  background: linear-gradient(135deg, rgba(196, 184, 150, 0.15) 0%, rgba(140, 133, 87, 0.12) 50%, rgba(196, 184, 150, 0.15) 100%);
  border: 2px solid rgba(196, 184, 150, 0.3);
  border-radius: 0.75rem;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.4);
  text-align: center;
  position: relative;
  overflow: hidden;
  opacity: 0;
  animation: structFadeUp 0.8s var(--struct-ease) 1.45s forwards;
  max-width: 700px;
  margin: 0 auto;
}
@media (max-width: 767px) {
  .structure__continuation {
    padding: 2rem 1.5rem;
  }
}

.structure__continuation::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, #C4B896, transparent);
}

.structure__continuation-text {
  font-family: "Editor's Note", serif;
  font-weight: 200;
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  color: #E8E2D5;
  line-height: 1.3;
  margin: 0 0 0.65rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.structure__continuation-text strong {
  font-style: italic;
  color: #C4B896;
}

.structure__continuation-subtext {
  font-family: "Montserrat", sans-serif;
  font-weight: 200;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
  font-style: italic;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* Footnote: texto claro en fondo oscuro */
.structure__footnote {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 2rem 0;
  text-align: center;
}
@media (max-width: 767px) {
  .structure__footnote {
    padding: 2rem 1.5rem 0;
  }
}

.structure__footnote-text {
  font-family: "Montserrat", sans-serif;
  font-size: clamp(0.85rem, 1.3vw, 0.95rem);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
  margin: 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.structure__footnote-italic {
  font-family: "Editor's Note", serif;
  font-style: italic;
  font-weight: 200;
  color: #C4B896;
}