/* ============================================================
   SECCIÓN: Proyectos Desarrollados — Semillero LOCXUE
   ============================================================ */

.locxue-proyectos {
  /* --- Paleta institucional --- */
  --lx-color-primary: #0C1940;   /* azul marino institucional */
  --lx-color-secondary: #642EA0; /* morado institucional */
  --lx-color-bg: #FFFFFF;
  --lx-color-bg-alt: #F4F6F9;

  --lx-color-primary-10: rgba(12, 25, 64, 0.08);
  --lx-color-secondary-10: rgba(100, 46, 160, 0.08);
  --lx-color-secondary-30: rgba(100, 46, 160, 0.3);

  /* --- Tipografía --- */
  --lx-font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --lx-font-body: "Inter", "Roboto", Helvetica, Arial, sans-serif;

  /* --- Layout --- */
  --lx-radius: 14px;
  --lx-gap: 1.75rem;
  --lx-container-max: 1180px;
  --lx-transition: 220ms ease;

  position: relative;
  overflow: hidden;
  background: var(--lx-color-bg-alt);
  color: var(--lx-color-primary);
  font-family: var(--lx-font-body);
  padding-block: clamp(3.5rem, 6vw, 6rem);
}

/* ---------- Marca de agua lateral ---------- */
.locxue-proyectos__watermark {
  position: absolute;
  top: 50%;
  right: 1.25rem;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.35em;
  font-family: var(--lx-font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  color: var(--lx-color-primary);
  opacity: 0.06;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* ---------- Contenedor ---------- */
.locxue-proyectos__container {
  position: relative;
  z-index: 1;
  max-width: var(--lx-container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------- Encabezado ---------- */
.locxue-proyectos__header {
  max-width: 46rem;
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.locxue-proyectos__eyebrow {
  margin: 0 0 0.6rem;
  font-family: var(--lx-font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lx-color-secondary);
}

.locxue-proyectos__title {
  margin: 0 0 1rem;
  font-family: var(--lx-font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  color: var(--lx-color-primary);
}

.locxue-proyectos__intro {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.7;
  color: color-mix(in srgb, var(--lx-color-primary) 82%, black 0%);
}

/* ---------- Grid de tarjetas ---------- */
.locxue-proyectos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--lx-gap);
  list-style: none;
  margin: 0 0 clamp(2.5rem, 5vw, 3.5rem);
  padding: 0;
}

/* ---------- Tarjeta de proyecto ---------- */
.proyecto-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--lx-color-bg);
  border-radius: var(--lx-radius);
  box-shadow: 0 1px 2px rgba(12, 25, 64, 0.06), 0 10px 24px rgba(12, 25, 64, 0.05);
  overflow: hidden;
  opacity: 0;
  transform: translateY(14px);
  animation: lx-card-in 560ms ease forwards;
  animation-delay: var(--lx-card-delay, 0ms);
  transition: box-shadow var(--lx-transition), transform var(--lx-transition);
}

.proyecto-card:hover,
.proyecto-card:focus-within {
  box-shadow: 0 4px 10px rgba(12, 25, 64, 0.08), 0 18px 34px rgba(12, 25, 64, 0.1);
  transform: translateY(-4px);
}

@keyframes lx-card-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Bloque "imagen" con año superpuesto */
.proyecto-card__media {
  position: relative;
  height: 132px;
  background: linear-gradient(135deg, var(--lx-color-primary), var(--lx-color-secondary));
  overflow: hidden;
}

.proyecto-card__media-pattern {
  position: absolute;
  inset: -20% -10%;
  background-image: radial-gradient(rgba(255, 255, 255, 0.14) 1.5px, transparent 1.5px);
  background-size: 18px 18px;
  z-index: 1;
}

.proyecto-card__year {
  position: absolute;
  left: 1.25rem;
  bottom: 0.9rem;
  z-index: 2;
  font-family: var(--lx-font-display);
  font-weight: 700;
  font-size: 2.1rem;
  color: #fff;
  line-height: 1;
}

.proyecto-card__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 3;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--lx-color-primary);
  backdrop-filter: blur(2px);
}

.proyecto-card__badge--finalizado {
  color: #1b6b46;
}

.proyecto-card__badge--intercambio {
  color: var(--lx-color-secondary);
}

.proyecto-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.4rem 0.5rem;
}

.proyecto-card__tag {
  margin: 0 0 0.5rem;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lx-color-secondary);
}

.proyecto-card__title {
  margin: 0 0 0.6rem;
  font-family: var(--lx-font-display);
  font-weight: 700;
  font-size: 1.28rem;
  line-height: 1.3;
  color: var(--lx-color-primary);
}

.proyecto-card__desc {
  margin: 0 0 1.1rem;
  font-size: 0.94rem;
  line-height: 1.6;
  color: color-mix(in srgb, var(--lx-color-primary) 78%, black 0%);
}

.proyecto-card__meta {
  display: flex;
  gap: 1.5rem;
  margin: 0 0 0.25rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--lx-color-bg-alt);
}

.proyecto-card__meta dt {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--lx-color-primary) 55%, transparent);
  margin: 0 0 0.2rem;
}

.proyecto-card__meta dd {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--lx-color-primary);
}

.proyecto-card__footer {
  padding: 1rem 1.4rem 1.4rem;
}

.proyecto-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--lx-font-body);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--lx-color-secondary);
  background: none;
  border: none;
  padding: 0.35rem 0;
  cursor: pointer;
  transition: gap var(--lx-transition), color var(--lx-transition);
}

.proyecto-card__link-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--lx-transition);
}

.proyecto-card__link:hover,
.proyecto-card__link:focus-visible {
  color: var(--lx-color-primary);
  gap: 0.6rem;
}

.proyecto-card__link:focus-visible {
  outline: 2px solid var(--lx-color-secondary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Tarjeta placeholder */
.proyecto-card--placeholder {
  background: transparent;
  box-shadow: none;
  border: 1.5px dashed var(--lx-color-secondary-30);
  align-items: center;
  justify-content: center;
}

.proyecto-card__body--placeholder {
  align-items: center;
  text-align: center;
  justify-content: center;
  padding: 2.25rem 1.5rem;
}

.proyecto-card__placeholder-icon {
  width: 30px;
  height: 30px;
  color: var(--lx-color-secondary);
  opacity: 0.6;
  margin-bottom: 0.75rem;
}

.proyecto-card__title--muted {
  color: color-mix(in srgb, var(--lx-color-primary) 70%, transparent);
}

/* ---------- Fuentes consultadas ---------- */
.locxue-proyectos__sources {
  border-top: 1px solid var(--lx-color-secondary-10);
  padding-top: 1.25rem;
}

.locxue-proyectos__sources summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--lx-color-primary);
  list-style: none;
}

.locxue-proyectos__sources summary::-webkit-details-marker {
  display: none;
}

.locxue-proyectos__sources summary::before {
  content: "+ ";
  color: var(--lx-color-secondary);
}

.locxue-proyectos__sources[open] summary::before {
  content: "– ";
}

.locxue-proyectos__sources ul {
  margin: 0.9rem 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.55rem;
}

.locxue-proyectos__sources a {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--lx-color-secondary);
  text-decoration-color: var(--lx-color-secondary-30);
}

.locxue-proyectos__sources a:hover,
.locxue-proyectos__sources a:focus-visible {
  color: var(--lx-color-primary);
}

/* ---------- Modal de detalle ---------- */
.locxue-proyectos__modal[hidden] {
  display: none;
}

.locxue-proyectos__modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.locxue-proyectos__modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 25, 64, 0.55);
  backdrop-filter: blur(2px);
}

.locxue-proyectos__modal-dialog {
  position: relative;
  z-index: 1;
  width: min(560px, 100%);
  max-height: 85vh;
  overflow-y: auto;
  background: var(--lx-color-bg);
  border-radius: var(--lx-radius);
  padding: 2.25rem 2rem;
  box-shadow: 0 24px 60px rgba(12, 25, 64, 0.35);
  animation: lx-modal-in 220ms ease;
}

@keyframes lx-modal-in {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.locxue-proyectos__modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: 50%;
  background: var(--lx-color-bg-alt);
  color: var(--lx-color-primary);
  cursor: pointer;
  transition: background var(--lx-transition);
}

.locxue-proyectos__modal-close svg {
  width: 16px;
  height: 16px;
}

.locxue-proyectos__modal-close:hover,
.locxue-proyectos__modal-close:focus-visible {
  background: var(--lx-color-secondary-10);
  outline: none;
}

.locxue-proyectos__modal-tag {
  margin: 0 0 0.5rem;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--lx-color-secondary);
}

.locxue-proyectos__modal-title {
  margin: 0 0 0.9rem;
  font-family: var(--lx-font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--lx-color-primary);
  padding-right: 2rem;
}

.locxue-proyectos__modal-desc {
  margin: 0 0 1.25rem;
  font-size: 0.98rem;
  line-height: 1.7;
  color: color-mix(in srgb, var(--lx-color-primary) 82%, black 0%);
}

.locxue-proyectos__modal-meta {
  display: flex;
  gap: 2rem;
  margin: 0 0 1.5rem;
  padding: 1rem 0;
  border-top: 1px solid var(--lx-color-bg-alt);
  border-bottom: 1px solid var(--lx-color-bg-alt);
}

.locxue-proyectos__modal-meta dt {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--lx-color-primary) 55%, transparent);
  margin: 0 0 0.2rem;
}

.locxue-proyectos__modal-meta dd {
  margin: 0;
  font-weight: 600;
  color: var(--lx-color-primary);
}

.locxue-proyectos__modal-source {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.94rem;
  color: #fff;
  background: var(--lx-color-secondary);
  padding: 0.7rem 1.1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background var(--lx-transition), transform var(--lx-transition);
}

.locxue-proyectos__modal-source svg {
  width: 16px;
  height: 16px;
}

.locxue-proyectos__modal-source:hover,
.locxue-proyectos__modal-source:focus-visible {
  background: var(--lx-color-primary);
  transform: translateY(-1px);
}

.locxue-proyectos__modal-source:focus-visible {
  outline: 2px solid var(--lx-color-primary);
  outline-offset: 3px;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .locxue-proyectos__watermark {
    display: none;
  }

  .locxue-proyectos__grid {
    grid-template-columns: 1fr;
  }

  .locxue-proyectos__modal-dialog {
    padding: 1.75rem 1.4rem;
  }

  .locxue-proyectos__modal-meta {
    gap: 1.25rem;
  }
}

/* ---------- Accesibilidad: reduce motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .proyecto-card {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .proyecto-card,
  .proyecto-card__link,
  .proyecto-card__link-icon,
  .locxue-proyectos__modal-dialog,
  .locxue-proyectos__modal-source {
    transition: none;
    animation: none;
  }
}