/* ============================================
   OS1® · HOME.CSS
   Estilos específicos del index.html
   Hereda de master.css (incluye nav y footer)
   ============================================ */

/* ============================================
   ESTRUCTURA DE PÁGINA
   ============================================ */
.page {
  max-width: 100%;
  overflow-x: hidden;
}

.section {
  padding: clamp(80px, 14vh, 160px) clamp(24px, 6vw, 80px);
  position: relative;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* ============================================
   ZONA 1 — APERTURA INSTITUCIONAL
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 120px;
  padding-bottom: 80px;
}

.hero-eyebrow-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: clamp(40px, 6vh, 64px);
  opacity: 0;
  animation: fadeUp 0.8s ease-out 0.2s forwards;
}

.hero-eyebrow-wrap .eyebrow-line {
  flex: 0 0 48px;
  height: 0.5px;
  background: var(--gris-medio);
}

/* Statement editorial */
.hero-statement {
  font-family: var(--editorial);
  font-weight: 400;
  font-size: clamp(36px, 6.5vw, 84px);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--negro);
  max-width: 1100px;
  margin-bottom: clamp(40px, 6vh, 56px);
  opacity: 0;
  animation: fadeUp 1s ease-out 0.5s forwards;
}

.hero-statement .em-soft {
  font-style: italic;
}

.hero-statement .estructura-word {
  color: var(--rojo-os1);
  font-style: italic;
}

.hero-support {
  font-family: var(--inter);
  font-weight: 400;
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.55;
  color: var(--gris-faint);
  max-width: 620px;
  opacity: 0;
  animation: fadeUp 1s ease-out 0.8s forwards;
}

/* Filete inferior decorativo */
.hero-rule {
  position: absolute;
  bottom: 60px;
  left: clamp(24px, 6vw, 80px);
  right: clamp(24px, 6vw, 80px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  opacity: 0;
  animation: fadeUp 1s ease-out 1.1s forwards;
}

.hero-rule-mark {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gris-medio);
}

.hero-rule-motto {
  font-family: var(--editorial);
  font-style: italic;
  font-weight: 400;
  font-size: 16px;
  color: var(--gris-faint);
  letter-spacing: 0.02em;
}

.hero-rule-line {
  flex: 1;
  height: 0.5px;
  background: var(--gris-claro);
  margin: 0 24px;
}

/* ============================================
   ZONA 2 — LA FIRMA
   ============================================ */
.firma {
  background: var(--blanco-hueso);
  border-top: 0.5px solid var(--linea-suave);
}

.firma-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: clamp(40px, 8vw, 120px);
  align-items: start;
}

.firma-header .eyebrow {
  display: block;
  margin-bottom: 24px;
}

.firma-title {
  font-family: var(--inter);
  font-weight: 500;
  font-size: clamp(28px, 3.5vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--negro);
}

.firma-body {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.firma-body p {
  font-size: 17px;
  line-height: 1.7;
  color: var(--tinta);
  max-width: 560px;
}

.firma-negaciones {
  margin-top: 16px;
  padding: 28px 0 28px 28px;
  border-left: 2px solid var(--rojo-os1);
}

.firma-negaciones p {
  font-family: var(--inter);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.7;
  color: var(--negro);
  margin-bottom: 8px;
}

.firma-negaciones p:last-child {
  margin-bottom: 0;
}

.firma-cierre {
  margin-top: 32px;
  font-family: var(--editorial);
  font-style: italic;
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.35;
  color: var(--negro);
  max-width: 560px;
}

/* ============================================
   ZONA 3 — LA INTERVENCIÓN
   ============================================ */
.intervencion {
  background: var(--negro);
  color: var(--blanco-hueso);
  border-top: 0.5px solid var(--tinta);
}

.intervencion .eyebrow {
  color: var(--gris-medio);
}

.intervencion .eyebrow-num {
  color: var(--rojo-os1);
}

.intervencion-header {
  margin-bottom: clamp(56px, 9vh, 88px);
}

.intervencion-title {
  font-family: var(--inter);
  font-weight: 500;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--blanco-hueso);
  margin-top: 24px;
  max-width: 800px;
}

.intervencion-lead {
  font-family: var(--inter);
  font-weight: 400;
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.65;
  color: var(--gris-claro);
  max-width: 640px;
  margin-top: 24px;
}

/* Las tres fases */
.fases {
  display: flex;
  flex-direction: column;
  border-top: 0.5px solid var(--gris-faint);
  margin-top: 56px;
}

.fase {
  display: grid;
  grid-template-columns: 100px 1fr 2fr;
  gap: clamp(24px, 4vw, 56px);
  padding: 36px 0;
  border-bottom: 0.5px solid var(--gris-faint);
  align-items: baseline;
}

.fase-num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--rojo-os1);
}

.fase-motto {
  font-family: var(--inter);
  font-weight: 600;
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: -0.01em;
  color: var(--blanco-hueso);
}

.fase-nombre {
  font-family: var(--editorial);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--gris-claro);
  line-height: 1.4;
}

.fases-cierre {
  margin-top: 40px;
  font-family: var(--editorial);
  font-style: italic;
  font-size: clamp(20px, 2.2vw, 26px);
  color: var(--blanco-hueso);
  letter-spacing: -0.005em;
}

/* The OS1® Core */
.core-block {
  margin-top: clamp(80px, 12vh, 120px);
  padding-top: clamp(56px, 9vh, 80px);
  border-top: 0.5px solid var(--gris-faint);
}

.core-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gris-medio);
  margin-bottom: 20px;
  display: block;
}

.core-title {
  font-family: var(--inter);
  font-weight: 500;
  font-size: clamp(32px, 4vw, 48px);
  letter-spacing: -0.02em;
  color: var(--blanco-hueso);
  margin-bottom: 28px;
}

.core-body {
  font-family: var(--inter);
  font-weight: 400;
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.65;
  color: var(--gris-claro);
  max-width: 700px;
  margin-bottom: 36px;
}

.core-cierre {
  font-family: var(--editorial);
  font-style: italic;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.4;
  color: var(--rojo-os1);
  max-width: 720px;
  padding-top: 32px;
  border-top: 0.5px solid var(--gris-faint);
}

/* Escenarios de pertinencia */
.escenarios-block {
  margin-top: clamp(80px, 12vh, 120px);
  padding-top: clamp(56px, 9vh, 80px);
  border-top: 0.5px solid var(--gris-faint);
}

.escenarios-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gris-medio);
  margin-bottom: 28px;
  display: block;
}

.escenarios-lead {
  font-family: var(--inter);
  font-weight: 400;
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.5;
  color: var(--blanco-hueso);
  max-width: 680px;
  margin-bottom: 40px;
}

.escenarios-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 0.5px solid var(--gris-faint);
}

.escenarios-list li {
  font-family: var(--inter);
  font-weight: 400;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.5;
  color: var(--blanco-hueso);
  padding: 22px 0;
  padding-left: 28px;
  border-bottom: 0.5px solid var(--gris-faint);
  position: relative;
}

.escenarios-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--rojo-os1);
  font-weight: 400;
}

.escenarios-cierre {
  margin-top: 40px;
  font-family: var(--editorial);
  font-style: italic;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.45;
  color: var(--gris-claro);
  max-width: 700px;
}

/* ============================================
   ZONA 4 — ACCESO
   ============================================ */
.acceso {
  background: var(--blanco-hueso);
  text-align: left;
}

.acceso-container {
  max-width: 760px;
  margin: 0 auto;
}

.acceso-eyebrow {
  margin-bottom: 28px;
  display: block;
}

.acceso-title {
  font-family: var(--inter);
  font-weight: 500;
  font-size: clamp(32px, 4.5vw, 52px);
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--negro);
  margin-bottom: 32px;
}

.acceso-body {
  font-family: var(--inter);
  font-weight: 400;
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.7;
  color: var(--tinta);
  margin-bottom: 24px;
}

.acceso-nota {
  font-family: var(--editorial);
  font-style: italic;
  font-size: clamp(17px, 1.7vw, 20px);
  line-height: 1.55;
  color: var(--gris-faint);
  margin-bottom: 56px;
  max-width: 580px;
}

.acceso-cta {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-family: var(--inter);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--negro);
  text-decoration: none;
  padding: 18px 32px;
  border: 0.5px solid var(--negro);
  transition: all 0.35s ease;
}

.acceso-cta:hover {
  background: var(--negro);
  color: var(--blanco-hueso);
}

.acceso-cta:hover .arrow {
  transform: translateX(4px);
}

.arrow {
  display: inline-block;
  transition: transform 0.35s ease;
}

/* ============================================
   ZONA 5 — AUTORÍA
   ============================================ */
.autoria {
  background: var(--blanco-hueso);
  border-top: 0.5px solid var(--linea-suave);
}

.autoria-container {
  max-width: 760px;
  margin: 0 auto;
}

.autoria-eyebrow {
  margin-bottom: 24px;
  display: block;
}

.autoria-title {
  font-family: var(--editorial);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 40px);
  letter-spacing: -0.015em;
  color: var(--negro);
  margin-bottom: 24px;
  line-height: 1.15;
}

.autoria-body {
  font-family: var(--inter);
  font-weight: 400;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.7;
  color: var(--gris-faint);
  max-width: 620px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .firma-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .fase {
    grid-template-columns: 80px 1fr;
    gap: 16px;
  }

  .fase-nombre {
    grid-column: 2;
  }

  .hero-rule {
    display: none;
  }
}

@media (max-width: 600px) {
  .fase {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 28px 0;
  }

  .fase-nombre,
  .fase-motto {
    grid-column: 1;
  }

  .fase-num {
    margin-bottom: 4px;
  }
}