/* ============================================================
   Día de los Santos Inocentes — microsite de campaña
   Estética distinta al resto de blackmiel: ficha de época,
   oro envejecido sobre negro-verde nocturno, tipografía serif.
   ============================================================ */

:root {
  --dsi-bg: #0a0b07;
  --dsi-bg-alt: #121309;
  --dsi-gold: #c9973f;
  --dsi-gold-dim: #8a6a2c;
  --dsi-cream: #ece4d3;
  --dsi-fog: rgba(236, 228, 211, 0.6);
  --dsi-line: rgba(201, 151, 63, 0.28);
}

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

html, body.dsi {
  background: var(--dsi-bg);
  color: var(--dsi-cream);
  font-family: 'Cormorant Garamond', Georgia, serif;
}

body.dsi { overflow-x: hidden; }

img { max-width: 100%; }
a { color: inherit; }

/* ---------- textura: viñeta + grano ---------- */

.dsi__vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(201, 151, 63, 0.07), transparent 60%),
    radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.75) 100%);
}

.dsi__grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- navegación de regreso ---------- */

.dsi__back {
  position: fixed;
  top: 1.6rem;
  left: 1.8rem;
  z-index: 10;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dsi-fog);
  text-decoration: none;
  transition: color 0.3s;
}

.dsi__back:hover { color: var(--dsi-gold); }

/* ---------- hero ---------- */

.dsi__hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
}

.dsi__kicker {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--dsi-gold);
  margin-bottom: 1.6rem;
}

.dsi__title {
  font-weight: 500;
  font-style: italic;
  font-size: clamp(2.6rem, 8vw, 5.5rem);
  line-height: 1.08;
  color: var(--dsi-cream);
  text-shadow: 0 0 60px rgba(201, 151, 63, 0.2);
  margin-bottom: 1.8rem;
}

.dsi__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
  color: var(--dsi-fog);
  max-width: 34rem;
  margin-bottom: 2.2rem;
}

.dsi__tags {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dsi-gold-dim);
}

.dsi__tag-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--dsi-gold-dim); }

.dsi__scroll-cue {
  position: absolute;
  bottom: 2.4rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dsi-gold-dim);
  animation: dsi-bob 2.6s ease-in-out infinite;
}

@keyframes dsi-bob {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.55; }
  50% { transform: translate(-50%, 8px); opacity: 1; }
}

/* ---------- secciones ---------- */

.dsi__section {
  position: relative;
  z-index: 2;
  max-width: 42rem;
  margin: 0 auto;
  padding: 6rem 1.8rem;
  border-top: 1px solid var(--dsi-line);
}

.dsi__reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 1s ease, transform 1s ease;
}

.dsi__reveal.dsi__reveal--in {
  opacity: 1;
  transform: translateY(0);
}

.dsi__label {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--dsi-gold);
  margin-bottom: 1.8rem;
}

.dsi__label-sub {
  color: var(--dsi-fog);
  letter-spacing: 0.04em;
  text-transform: none;
  font-weight: 500;
}

.dsi__pullquote {
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1.4;
  color: var(--dsi-cream);
  border-left: 2px solid var(--dsi-gold);
  padding-left: 1.4rem;
  margin-bottom: 2.2rem;
}

.dsi__subhead {
  font-weight: 500;
  font-style: italic;
  font-size: clamp(1.6rem, 3.6vw, 2.3rem);
  color: var(--dsi-cream);
  margin-bottom: 1.4rem;
}

.dsi__body {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  line-height: 1.75;
  color: var(--dsi-fog);
  margin-bottom: 1.3rem;
}

.dsi__body:last-child { margin-bottom: 0; }

/* ---------- ficha técnica ---------- */

.dsi__specs {
  display: flex;
  flex-direction: column;
}

.dsi__spec {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--dsi-line);
}

.dsi__spec:last-child { border-bottom: none; }

.dsi__spec dt {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dsi-gold-dim);
}

.dsi__spec dd {
  font-size: 1.05rem;
  color: var(--dsi-cream);
}

/* ---------- cta ---------- */

.dsi__cta {
  text-align: center;
  max-width: 54rem;
}

.dsi__cta-title {
  font-weight: 500;
  font-style: italic;
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  color: var(--dsi-cream);
  margin-bottom: 1.4rem;
}

.dsi__cta > .dsi__body { max-width: 34rem; margin-left: auto; margin-right: auto; margin-bottom: 2.2rem; }

.dsi__btn {
  display: inline-block;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dsi-bg);
  background: var(--dsi-gold);
  padding: 1rem 2.6rem;
  border-radius: 2px;
  text-decoration: none;
  transition: background 0.3s, box-shadow 0.3s, transform 0.3s, color 0.3s, border-color 0.3s;
}

.dsi__btn:hover {
  background: #ddb15c;
  box-shadow: 0 0 34px rgba(201, 151, 63, 0.4);
  transform: translateY(-1px);
}

.dsi__btn--ghost {
  background: transparent;
  color: var(--dsi-gold);
  border-color: var(--dsi-gold-dim);
}

.dsi__btn--ghost:hover {
  background: rgba(201, 151, 63, 0.08);
  border-color: var(--dsi-gold);
  box-shadow: none;
}

.dsi__btn-chevron {
  display: inline-block;
  margin-left: 0.3em;
  transition: transform 0.35s ease;
}

#btnTogglePatrocinio[aria-expanded="true"] .dsi__btn-chevron {
  transform: rotate(180deg);
}

.dsi__cta-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 1rem;
}

.dsi__cta-note {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.74rem;
  color: var(--dsi-gold-dim);
  letter-spacing: 0.02em;
}

/* ---------- panel de patrocinio (desplegable) ---------- */

.dsi__panel {
  text-align: left;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.7s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.5s ease, margin-top 0.5s ease;
}

.dsi__panel--open {
  max-height: 3400px;
  opacity: 1;
  margin-top: 3rem;
}

.dsi__panel .dsi__label { text-align: left; }
.dsi__panel .dsi__subhead { text-align: left; }
.dsi__panel .dsi__body { text-align: left; max-width: none; margin-left: 0; margin-right: 0; }

.dsi__tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1px;
  background: var(--dsi-line);
  border: 1px solid var(--dsi-line);
  margin-top: 2.4rem;
}

.dsi__tier {
  background: var(--dsi-bg-alt);
  padding: 1.8rem 1.6rem;
}

.dsi__tier--top { background: rgba(201, 151, 63, 0.06); }

.dsi__tier-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dsi-gold);
  margin-bottom: 0.5rem;
}

.dsi__tier-name {
  font-weight: 500;
  font-style: italic;
  font-size: 1.3rem;
  color: var(--dsi-cream);
  margin-bottom: 1rem;
}

.dsi__tier-list { list-style: none; }

.dsi__tier-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.95rem;
  color: var(--dsi-fog);
  line-height: 1.6;
}

.dsi__tier-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--dsi-gold-dim);
}

/* ---------- formulario de contacto ---------- */

.dsi__form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  max-width: 30rem;
}

.dsi__form label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dsi-gold-dim);
}

.dsi__form input,
.dsi__form textarea {
  background: var(--dsi-bg-alt);
  border: 1px solid var(--dsi-line);
  border-radius: 2px;
  color: var(--dsi-cream);
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.05rem;
  padding: 0.75rem 0.9rem;
  resize: vertical;
  transition: border-color 0.25s;
}

.dsi__form input:focus,
.dsi__form textarea:focus {
  outline: none;
  border-color: var(--dsi-gold);
}

.dsi__form .dsi__btn { align-self: flex-start; }

.dsi__form-ok {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  color: var(--dsi-gold);
}

/* ---------- footer ---------- */

.dsi__footer {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 1.5rem 4rem;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--dsi-gold-dim);
}

/* ============ RESPONSIVE ============ */

@media (max-width: 640px) {
  .dsi__section { padding: 4.5rem 1.4rem; }
  .dsi__spec { grid-template-columns: 1fr; gap: 0.25rem; }
}