/* Civil Resuelto - estilos. Paleta de marca: naranja #F26B1D y azul #0F2A44. */

:root {
  --azul: #0F2A44;
  --azul-medio: #163A5C;
  --azul-hondo: #0A1E32;
  --naranja: #F26B1D;
  --naranja-claro: #FF8A47;
  --naranja-texto: #B84A0B;      /* naranja oscuro legible sobre fondo claro */
  --papel: #EEF3F8;
  --papel-2: #E3ECF5;
  --linea: #C5D3E1;
  --blanco: #FFFFFF;
  --tinta-suave: #41566B;

  --fuente: "Archivo", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radio: 3px;
  --ancho: 1160px;
  --cab-alto: 68px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-padding-top: calc(var(--cab-alto) + 12px);
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
html.modal-abierto { overflow: hidden; }

body {
  margin: 0;
  background: var(--blanco);
  color: var(--azul);
  font-family: var(--fuente);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; color: inherit; }
a { color: inherit; }

:focus-visible {
  outline: 3px solid var(--naranja);
  outline-offset: 3px;
}

.saltar {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--naranja);
  color: var(--azul);
  font-weight: 700;
}
.saltar:focus { top: 12px; }

.wrap {
  width: min(var(--ancho), 100% - 40px);
  margin-inline: auto;
}

/* ---------- Tipografía ---------- */
h1, h2 {
  font-weight: 800;
  font-stretch: 118%;
  letter-spacing: -0.012em;
  line-height: 1.04;
}
h1 { font-size: clamp(2.3rem, 5.4vw, 4.2rem); }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); }
h3 { font-weight: 700; font-size: 1.2rem; line-height: 1.2; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 2px solid transparent;
  border-radius: var(--radio);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn-chico { padding: 9px 16px; font-size: .95rem; }
.btn-grande { padding: 15px 26px; font-size: 1.05rem; }
.btn-naranja { background: var(--naranja); color: var(--azul); }
.btn-naranja:hover { background: var(--naranja-claro); }
.btn-claro { border-color: rgba(255,255,255,.55); color: var(--blanco); }
.btn-claro:hover { background: var(--blanco); color: var(--azul); }
.btn-azul { background: var(--azul); color: var(--blanco); }
.btn-azul:hover { background: var(--azul-hondo); }
.btn-linea { border-color: var(--azul); color: var(--azul); background: transparent; }
.btn-linea:hover { background: var(--azul); color: var(--blanco); }

/* ---------- Cabecera ---------- */
.cabecera {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--azul);
  color: var(--blanco);
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.cab-in {
  width: min(var(--ancho), 100% - 40px);
  height: var(--cab-alto);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.marca {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--blanco);
}
.marca-logo { width: 46px; height: 42px; color: var(--blanco); flex: none; }
.marca-texto {
  font-weight: 800;
  font-stretch: 115%;
  font-size: 1.15rem;
  letter-spacing: -0.005em;
}
.nav { display: flex; align-items: center; gap: 28px; }
.nav a:not(.btn) {
  text-decoration: none;
  font-weight: 600;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.nav a:not(.btn):hover { border-bottom-color: var(--naranja); }

.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 2px solid rgba(255,255,255,.45);
  border-radius: var(--radio);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-btn span { width: 20px; height: 2px; background: var(--blanco); }

@media (max-width: 820px) {
  .menu-btn { display: inline-flex; }
  .marca-texto { font-size: 1.02rem; }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--cab-alto);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 20px;
    background: var(--azul);
    border-bottom: 1px solid rgba(255,255,255,.12);
  }
  .nav.abierto { display: flex; }
  .nav a:not(.btn) { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .nav .btn { margin-top: 16px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background-color: var(--azul);
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 160px 160px, 160px 160px, 32px 32px, 32px 32px;
  color: var(--blanco);
  overflow: hidden;
}
.hero-in {
  width: min(var(--ancho), 100% - 40px);
  margin-inline: auto;
  padding-block: clamp(40px, 6vw, 88px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}
.hero-texto { max-width: 34rem; }
.hero-sub {
  margin-top: 22px;
  font-size: 1.15rem;
  color: #D6E2EE;
  max-width: 32rem;
}
.hero-acciones { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-nota { margin-top: 20px; font-size: .95rem; color: #AFC3D6; }
.hero-art svg { width: 100%; height: auto; overflow: visible; }

@media (max-width: 900px) {
  .hero-in { grid-template-columns: minmax(0, 1fr); }
  .hero-art { max-width: 560px; }
}

/* Casa que se dibuja trazo por trazo (SVG generado en js/house-art.js) */
.hero-art .ln {
  fill: rgba(255,255,255,.04);
  stroke: var(--blanco);
  stroke-width: .08;
  stroke-linejoin: round;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: trazo .9s cubic-bezier(.5, 0, .2, 1) forwards;
  animation-delay: calc(var(--i) * 45ms);
}
.hero-art .ln.thin { stroke-width: .05; opacity: .75; }
.hero-art .ln.ac { stroke: var(--naranja); stroke-width: .1; }
.hero-art .gr { fill: none; stroke: rgba(255,255,255,.14); stroke-width: .03; }
.hero-art .cota {
  fill: var(--naranja);
  font-family: var(--fuente);
  font-weight: 700;
  font-size: .95px;
  animation: aparece .6s 2.4s both;
}
@keyframes trazo { to { stroke-dashoffset: 0; } }
@keyframes aparece { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .hero-art .ln { animation: none; stroke-dashoffset: 0; }
  .hero-art .cota { animation: none; }
}

/* ---------- Secciones ---------- */
.sec { padding-block: clamp(56px, 8vw, 104px); }
.sec--papel { background: var(--papel); }
.sec--azul { background: var(--azul-hondo); color: var(--blanco); }
.sec--naranja { background: var(--naranja); color: var(--azul); }

.sec-cab {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 28px;
  margin-bottom: clamp(28px, 4vw, 44px);
}

/* Filtros */
.filtros { display: flex; flex-wrap: wrap; gap: 10px; }
.filtros button {
  padding: 8px 16px;
  border: 2px solid var(--azul);
  border-radius: var(--radio);
  background: transparent;
  font-weight: 700;
  cursor: pointer;
}
.filtros button[aria-pressed="true"] { background: var(--azul); color: var(--blanco); }
.filtros button:hover { background: var(--papel-2); }
.filtros button[aria-pressed="true"]:hover { background: var(--azul-medio); }

/* ---------- Catálogo: cada casa es una lámina de plano ---------- */
.catalogo {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 32px 28px;
}
.lamina[hidden] { display: none; }
.lamina {
  background: var(--blanco);
  border: 2px solid var(--azul);
  display: flex;
  flex-direction: column;
}
.lamina-arte {
  position: relative;
  display: block;
  width: 100%;
  padding: 18px;
  border: 0;
  background: var(--papel-2);
  cursor: pointer;
}
.lamina-arte svg, .lamina-arte img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: contain; }
.lamina-arte img { object-fit: cover; }

.sello {
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 3px 8px;
  background: var(--blanco);
  border: 1px solid var(--azul);
  font-size: .8rem;
  font-weight: 600;
  line-height: 1.3;
}

.cajetin { border-top: 2px solid var(--azul); display: flex; flex-direction: column; flex: 1; }
.cj-titulo {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--azul);
}
.cj-cod {
  display: flex;
  align-items: center;
  padding: 0 14px;
  background: var(--azul);
  color: var(--blanco);
  font-weight: 700;
  font-size: .9rem;
}
.cj-titulo h3 { padding: 12px 14px; font-size: 1.3rem; font-stretch: 112%; font-weight: 800; }

.cj-datos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--azul);
  border-bottom: 1px solid var(--azul);
}
.cj-datos > div { background: var(--blanco); padding: 8px 14px 10px; }
.cj-datos dt { font-size: .85rem; color: var(--tinta-suave); line-height: 1.3; }
.cj-datos dd { font-weight: 700; font-size: 1.05rem; line-height: 1.3; }

.cj-pie {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
}
.precio { font-weight: 800; font-stretch: 112%; font-size: 1.5rem; }
.precio--grande { font-size: 2rem; }
.vacio { padding: 24px; border: 2px dashed var(--linea); }

/* ---------- Cómo pedir ---------- */
.pasos {
  margin-top: clamp(28px, 4vw, 44px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}
.pasos li { border-top: 4px solid var(--azul); padding-top: 18px; }
.paso-num {
  display: block;
  font-weight: 800;
  font-stretch: 125%;
  font-size: 3.2rem;
  line-height: 1;
  color: var(--naranja-texto);
  margin-bottom: 12px;
}
.pasos p { margin-top: 8px; max-width: 30ch; color: var(--tinta-suave); }

/* ---------- Ejercicios resueltos ---------- */
.sec-sub { margin-top: 10px; color: var(--tinta-suave); max-width: 36rem; }
.ej-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
  gap: 24px;
}
.ej[hidden] { display: none; }
@media (max-width: 600px) {
  #filtros-ej { flex-wrap: nowrap; overflow-x: auto; width: 100%; padding-bottom: 4px; }
  #filtros-ej button { flex: none; white-space: nowrap; }
}
.ej {
  display: flex;
  flex-direction: column;
  border: 2px solid var(--azul);
  background-color: var(--blanco);
  background-image:
    linear-gradient(var(--papel-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--papel-2) 1px, transparent 1px);
  background-size: 16px 16px;
}
.ej-cab { display: flex; align-items: stretch; border-bottom: 2px solid var(--azul); background: var(--blanco); }
.ej-num {
  display: flex;
  align-items: center;
  padding: 6px 12px;
  background: var(--naranja);
  color: var(--azul);
  font-weight: 800;
  font-stretch: 120%;
}
.ej-curso { padding: 8px 12px; font-weight: 700; font-size: .92rem; line-height: 1.3; }
.ej-cuerpo { padding: 16px 16px 8px; flex: 1; }
.ej-cuerpo h3 { font-stretch: 108%; }
.ej-cuerpo p { margin-top: 8px; color: var(--tinta-suave); font-size: 1rem; }
.ej-cuerpo .ej-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 12px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--azul);
}
.sello--linea { position: static; }
.ej-pie { display: flex; flex-wrap: wrap; gap: 10px; padding: 12px 16px 16px; }
.ej-pronto {
  padding: 8px 12px;
  border: 2px dashed var(--linea);
  background: var(--blanco);
  font-weight: 600;
  font-size: .92rem;
  color: var(--tinta-suave);
}

/* ---------- Aviso de planos referenciales ---------- */
.aviso-corto {
  margin-top: 28px;
  padding: 14px 18px;
  border-left: 4px solid var(--naranja);
  background: var(--papel);
  font-size: .98rem;
}
.aviso-corto a, .aviso-modal a { color: var(--azul); font-weight: 700; }
.aviso-modal {
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 4px solid var(--naranja);
  background: var(--papel);
  font-size: .92rem;
  line-height: 1.5;
}

/* ---------- Videos ---------- */
.vid-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
  gap: 28px 24px;
}
@media (min-width: 900px) {
  .vid-grid { grid-template-columns: repeat(3, 1fr); }
  .vid--principal { grid-column: span 2; }
}
.vid-play, .vid iframe {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  padding: 0;
  border: 0;
  background: #000;
  cursor: pointer;
  overflow: hidden;
}
.vid-play img { width: 100%; height: 100%; object-fit: cover; opacity: .92; }
.vid-boton {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 68px;
  height: 68px;
  margin: -34px 0 0 -34px;
  border-radius: 50%;
  background: var(--naranja);
}
.vid-boton::after {
  content: "";
  position: absolute;
  left: 27px;
  top: 21px;
  border-left: 22px solid var(--azul);
  border-top: 13px solid transparent;
  border-bottom: 13px solid transparent;
}
.vid-play:hover .vid-boton { background: var(--naranja-claro); }
.vid figcaption { margin-top: 12px; font-weight: 600; line-height: 1.35; }
.vid-vacio {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px;
  border: 2px solid rgba(255,255,255,.35);
  font-size: 1.15rem;
}

/* ---------- Contacto y redes ---------- */
.contacto-sub { margin-top: 14px; max-width: 36rem; font-size: 1.12rem; }
.contacto-vias { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.contacto-vias [hidden] { display: none; }
.redes {
  margin-top: clamp(32px, 5vw, 56px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}
.redes a {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--azul);
  color: var(--blanco);
  text-decoration: none;
  border-radius: var(--radio);
  transition: background-color .15s;
}
.redes a:hover { background: var(--azul-hondo); }
.redes svg { width: 36px; height: 36px; flex: none; color: var(--naranja); }
.redes span { display: flex; flex-direction: column; line-height: 1.3; }
.redes strong { font-size: 1.1rem; }

/* ---------- Pie ---------- */
.pie { background: var(--azul-hondo); color: #AFC3D6; padding-block: 28px; }
.pie-in {
  width: min(var(--ancho), 100% - 40px);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.pie .marca-logo { width: 40px; height: 36px; }
.pie-aviso {
  width: min(var(--ancho), 100% - 40px);
  margin: 24px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.14);
  font-size: .92rem;
  line-height: 1.55;
}
.pie-aviso h2 { font-size: 1rem; font-stretch: 110%; color: var(--blanco); letter-spacing: 0; }
.pie-aviso p { margin-top: 8px; max-width: 70ch; }
.pie-aviso strong { color: var(--blanco); }
.pie .marca-texto { font-size: 1rem; }

/* ---------- Ventana "Obtener plano" ---------- */
.modal {
  width: min(1020px, 100% - 24px);
  max-height: calc(100dvh - 24px);
  padding: 0;
  border: 2px solid var(--azul);
  background: var(--blanco);
  color: var(--azul);
  overflow: auto;
}
.modal[open] { animation: entra .22s ease-out; }
.modal::backdrop { background: rgba(10, 30, 50, .72); }
@keyframes entra { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .modal[open] { animation: none; } }

.modal-x {
  position: absolute;
  right: 10px;
  top: 10px;
  z-index: 2;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 2px solid var(--azul);
  border-radius: var(--radio);
  background: var(--blanco);
  cursor: pointer;
}
.modal-x:hover { background: var(--naranja); }
.modal-x svg { width: 100%; height: 100%; }

.modal-cuerpo { display: grid; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 860px) {
  .modal-cuerpo { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
.modal-arte {
  position: relative;
  display: flex;
  align-items: center;
  padding: 28px;
  background: var(--papel-2);
  border-bottom: 2px solid var(--azul);
}
@media (min-width: 860px) {
  .modal-arte { border-bottom: 0; border-right: 2px solid var(--azul); }
}
.modal-arte svg, .modal-arte img { width: 100%; height: auto; }
.modal-info { padding: 28px clamp(20px, 3vw, 32px) 32px; }
.modal-info .cj-cod { display: inline-flex; padding: 3px 12px; min-height: 0; }
.modal-info h2 { margin-top: 10px; font-size: clamp(1.7rem, 3vw, 2.2rem); }
.modal-desc { margin-top: 12px; color: var(--tinta-suave); max-width: 46ch; }
.cj-datos--modal { margin-top: 20px; border: 1px solid var(--azul); }
.modal-info h3 { margin-top: 24px; font-size: 1.05rem; }
.incluye { margin-top: 8px; }
.incluye li { position: relative; padding-left: 22px; margin-top: 4px; }
.incluye li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .5em;
  width: 10px;
  height: 6px;
  border-left: 3px solid var(--naranja-texto);
  border-bottom: 3px solid var(--naranja-texto);
  transform: rotate(-45deg);
}
.modal-compra {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 14px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 2px solid var(--azul);
}
.modal-compra .precio { width: 100%; }
.pago { margin-top: 24px; padding: 16px 18px; background: var(--papel); }
.pago h3 { margin: 0 0 8px; }
.pago-lista li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  padding: 10px 0;
  border-top: 1px solid var(--linea);
}
.pago-medio { font-weight: 800; min-width: 3.5rem; }
.pago-num { font-weight: 700; font-size: 1.1rem; display: flex; flex-direction: column; line-height: 1.3; }
.pago-num small { font-weight: 400; font-size: .9rem; color: var(--tinta-suave); }
.copiar {
  margin-left: auto;
  padding: 6px 12px;
  border: 2px solid var(--azul);
  border-radius: var(--radio);
  background: var(--blanco);
  font-weight: 600;
  font-size: .9rem;
  cursor: pointer;
}
.copiar:hover { background: var(--azul); color: var(--blanco); }
.pago-nota { margin-top: 8px; font-size: .98rem; }
.pago-lista + .pago-nota { margin-top: 10px; }