/* ============================================================
   LANDING · portada
   Depende de base.css, que debe cargarse antes.
   ============================================================ */

/* ---------- cabecera fija ---------- */
.cabecera {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 80;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  height: 54px;
  padding: 0 var(--m);
  background: rgba(13, 14, 13, .8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--linea);
}
.cabecera nav { display: none; gap: 26px; }
@media (min-width: 940px) { .cabecera nav { display: flex; } }
.cabecera nav a {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--texto-tenue);
  text-decoration: none;
  transition: color .25s;
}
.cabecera nav a:hover { color: var(--texto); }

/* ---------- portada ---------- */
.portada {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 120px var(--m) clamp(34px, 6vw, 64px);
  border-bottom: 1px solid var(--linea);
}
.portada__int { width: 100%; max-width: 1340px; margin: 0 auto; }

.declaracion {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(34px, 7.4vw, 96px);
  line-height: .99;
  letter-spacing: -.035em;
  margin: 22px 0 0;
  max-width: 16ch;
}
.declaracion em { font-style: normal; color: var(--hormigon); }

/* revelado línea a línea desde una máscara */
.mascara { display: block; overflow: hidden; }
.mascara > span {
  display: block;
  transform: translateY(102%);
  transition: transform 1.1s var(--curva);
}
.cargado .mascara > span { transform: none; }
.mascara:nth-child(2) > span { transition-delay: .1s; }

.traza { display: block; width: 100%; height: auto; margin-top: clamp(26px, 4vw, 44px); }

.portada__pie {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 20px;
  border-top: 1px solid var(--linea);
}
@media (min-width: 780px) {
  .portada__pie { grid-template-columns: 1.4fr 1fr auto; align-items: end; }
}
.portada__pie p {
  margin: 0;
  max-width: 46ch;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--texto-medio);
}
.enlace-baja {
  color: var(--oro);
  text-decoration: none;
  border-bottom: 1px solid var(--oro);
  padding-bottom: 4px;
}

/* ---------- retícula de sección, como una hoja de plano ---------- */
.seccion {
  padding: clamp(74px, 10vw, 132px) var(--m);
  border-bottom: 1px solid var(--linea);
}
.hoja {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 54px);
  max-width: 1340px;
  margin: 0 auto;
}
@media (min-width: 940px) { .hoja { grid-template-columns: 120px 1fr; } }

.indice { align-self: start; display: flex; flex-direction: column; gap: 7px; }
.indice .cod {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
}

.medida {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(26px, 4.4vw, 52px);
  line-height: 1.05;
  letter-spacing: -.024em;
  margin: 0;
}
.prosa {
  margin: 26px 0 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.62;
  color: var(--texto-medio);
}
.prosa + .prosa { margin-top: 1.05em; }

/* ---------- tarjeta de acceso a las simulaciones ---------- */
.demo {
  display: block;
  margin-top: 34px;
  border: 1px solid var(--linea);
  background: var(--hondo);
  text-decoration: none;
  transition: border-color .35s, transform .35s;
}
.demo:hover { border-color: #42463C; transform: translateY(-2px); }
.demo__int { display: grid; grid-template-columns: 1fr; }
@media (min-width: 820px) { .demo__int { grid-template-columns: 1.4fr 1fr; } }

.demo__vis { border-bottom: 1px solid var(--linea); }
@media (min-width: 820px) {
  .demo__vis { border-bottom: 0; border-right: 1px solid var(--linea); }
}
.demo__vis svg { display: block; width: 100%; height: auto; }

.demo__txt {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px);
}
.demo__txt h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 500;
  letter-spacing: -.02em;
}
.demo__txt p { margin: 0; font-size: 15.5px; line-height: 1.55; color: var(--texto-medio); }
.demo__cta {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--oro);
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chips b {
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--hormigon);
  border: 1px solid var(--linea);
  padding: 5px 9px;
}

/* ---------- listado de capas ---------- */
.capas { margin-top: 34px; border-top: 1px solid var(--linea); }
.capa {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding: clamp(18px, 2.3vw, 26px) 0;
  border-bottom: 1px solid var(--linea);
  transition: padding-left .3s, background .3s;
}
@media (min-width: 780px) {
  .capa { grid-template-columns: 60px 1fr 1.5fr; gap: clamp(16px, 3vw, 40px); align-items: baseline; }
}
.capa:hover { background: #101210; padding-left: 10px; }
.capa__cod {
  font-family: var(--display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--oro);
}
.capa__n {
  font-family: var(--display);
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 500;
  letter-spacing: -.018em;
}
.capa__d { font-size: 15.5px; line-height: 1.55; color: #8C9187; }

/* ---------- tres perfiles de cliente ---------- */
.tres {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 34px;
  background: var(--linea);
  border: 1px solid var(--linea);
}
@media (min-width: 840px) { .tres { grid-template-columns: repeat(3, 1fr); } }
.tarj {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.7vw, 34px);
  background: var(--noche);
}
.tarj h3 {
  margin: 0;
  font-family: var(--display);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -.015em;
}
.tarj p { margin: 0; font-size: 15.5px; line-height: 1.56; color: #8C9187; }
.tarj ul { margin: 4px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.tarj li {
  position: relative;
  padding-left: 15px;
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.5;
  color: var(--texto-tenue);
}
.tarj li::before { content: "—"; position: absolute; left: 0; color: var(--oro); }

/* ---------- cita a sangre ---------- */
.cita {
  padding: clamp(64px, 9vw, 116px) var(--m);
  text-align: center;
  background: var(--hondo);
  border-bottom: 1px solid var(--linea);
}
.cita p {
  margin: 0 auto;
  max-width: 22ch;
  font-weight: 200;
  font-style: italic;
  font-size: clamp(22px, 3.4vw, 40px);
  line-height: 1.24;
  letter-spacing: -.015em;
}

/* ---------- llamada a la acción ---------- */
.boton {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
  padding: 16px 26px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--noche);
  background: var(--oro);
  text-decoration: none;
  transition: background .25s, transform .25s;
}
.boton:hover { background: var(--papel); transform: translateY(-2px); }

.pie {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  padding: 26px var(--m);
}