/* ---------- Tokens ---------- */
:root {
  --cal: #E6E4DD;        /* fondo: revoque fino */
  --cal-osc: #D9D6CD;
  --panel: #FBFAF7;      /* paneles: pared pintada */
  --tinta: #17160F;
  --hormigon: #6B685F;   /* texto secundario */
  --linea: #C9C6BC;
  --oro: #E8A317;        /* sol del logo */
  --oro-osc: #9C6A08;
  --ladrillo: #B4512B;
  --verde: #4F6E3B;

  --display: 'Big Shoulders Display', 'Arial Narrow', Impact, sans-serif;
  --texto: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;

  --ancho: 1180px;
  --margen: clamp(16px, 4vw, 40px);
  --tape: repeating-linear-gradient(-45deg, var(--oro) 0 10px, var(--tinta) 10px 20px);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--cal); color: var(--tinta);
  font-family: var(--texto); font-size: 17px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--oro); outline-offset: 3px; }
.solo-lectores { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.contenedor { width: min(var(--ancho), 100% - 2 * var(--margen)); margin-inline: auto; }
.seccion { padding-block: clamp(64px, 9vw, 128px); }
.seccion + .seccion { padding-top: 0; }

h1, h2, h3 { font-family: var(--display); font-weight: 800; line-height: 0.95; letter-spacing: 0.005em; margin: 0; text-transform: uppercase; }
h1 { font-size: clamp(52px, 8.2vw, 118px); font-weight: 900; }
h2 { font-size: clamp(44px, 6.5vw, 84px); }
h3 { font-size: clamp(26px, 3vw, 34px); }
p { margin: 0 0 1em; }
.mono { font-family: var(--mono); font-size: 13px; letter-spacing: 0.02em; }
.eyebrow { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.14em; color: var(--hormigon); display: flex; gap: 12px; align-items: center; }
.eyebrow::before { content: ''; width: 28px; height: 2px; background: var(--oro); }
.intro { font-size: clamp(18px, 1.6vw, 21px); max-width: 60ch; color: #2B2A24; }

.boton {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px;
  background: var(--tinta); color: var(--panel); text-decoration: none; border: 2px solid var(--tinta);
  font-weight: 600; font-size: 15px; border-radius: 3px; transition: transform .15s ease, background .15s ease;
}
.boton:hover { background: #2C2A20; transform: translateY(-1px); }
.boton.secundario { background: transparent; color: var(--tinta); }
.boton.secundario:hover { background: rgba(23,22,15,.06); }
.boton.oro { background: var(--oro); border-color: var(--oro); color: var(--tinta); }
.boton.oro:hover { background: #F2B330; }

/* ---------- Barra de estado de obra ---------- */
.estado {
  background: var(--tinta); color: var(--cal); font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em;
  border-bottom: 6px solid transparent; border-image: var(--tape) 1;
}
.estado .contenedor { display: flex; gap: 18px; align-items: center; min-height: 40px; flex-wrap: wrap; padding-block: 6px; }
.estado .punto { width: 9px; height: 9px; border-radius: 50%; background: var(--oro); box-shadow: 0 0 0 0 rgba(232,163,23,.6); animation: latido 2.4s infinite; }
@keyframes latido { 0% { box-shadow: 0 0 0 0 rgba(232,163,23,.55);} 70% { box-shadow: 0 0 0 8px rgba(232,163,23,0);} 100% { box-shadow: 0 0 0 0 rgba(232,163,23,0);} }
.estado span + span::before { content: '·'; margin-right: 18px; opacity: .5; }
.estado .punto + span::before { content: none; }

/* ---------- Navegación ---------- */
.nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--cal) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--linea); }
.nav .contenedor { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 20px; }
.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; font-family: var(--display); font-weight: 800; font-size: 22px; text-transform: uppercase; letter-spacing: .02em; }
.marca img { width: 40px; height: 40px; }
.marca small { display: block; font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; color: var(--hormigon); font-weight: 400; text-transform: uppercase; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; }
.nav li a { text-decoration: none; padding: 8px 12px; font-weight: 500; font-size: 15px; border-radius: 3px; }
.nav li a:hover { background: rgba(23,22,15,.07); }
.nav li a.candado::before { content: '🔒 '; font-size: 12px; }
@media (max-width: 760px) { .nav ul { display: none; } }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(40px, 6vw, 88px) clamp(48px, 6vw, 96px); }
.hero .contenedor { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 4vw, 64px); align-items: end; }
.hero h1 { margin: 14px 0 22px; max-width: 9ch; }
.hero h1 em { font-style: normal; color: var(--oro-osc); }
.hero .acciones { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
@media (max-width: 900px) { .hero .contenedor { grid-template-columns: 1fr; } }

/* Comparador antes / hoy */
.comparador { position: relative; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 4px; background: var(--cal-osc); box-shadow: 0 30px 60px -30px rgba(23,22,15,.5); user-select: none; }
.comparador img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.comparador .despues { clip-path: inset(0 0 0 var(--corte, 50%)); }
.comparador .linea { position: absolute; top: 0; bottom: 0; left: var(--corte, 50%); width: 3px; background: var(--oro); transform: translateX(-50%); pointer-events: none; }
.comparador .manija {
  position: absolute; top: 50%; left: var(--corte, 50%); transform: translate(-50%, -50%);
  width: 52px; height: 52px; border-radius: 50%; background: var(--tinta); color: var(--oro); border: 3px solid var(--oro);
  display: grid; place-items: center; font-family: var(--mono); font-size: 14px; letter-spacing: -1px; pointer-events: none;
  box-shadow: 0 8px 20px rgba(0,0,0,.35);
}
.comparador input[type=range] { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; }
.comparador .rotulo { position: absolute; bottom: 14px; font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; padding: 6px 10px; background: rgba(23,22,15,.85); color: var(--cal); pointer-events: none; }
.comparador .rotulo.antes { left: 14px; }
.comparador .rotulo.hoy { right: 14px; background: var(--oro); color: var(--tinta); }
.comparador .pista { position: absolute; top: 14px; left: 14px; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--cal); background: rgba(23,22,15,.7); padding: 6px 10px; pointer-events: none; transition: opacity .4s; }
.comparador.usado .pista { opacity: 0; }

/* Ficha de obra */
.ficha { border-top: 2px solid var(--tinta); border-bottom: 1px solid var(--linea); }
.ficha .contenedor { display: grid; grid-template-columns: repeat(4, 1fr); }
.ficha div { padding: 18px 20px 18px 0; border-right: 1px solid var(--linea); margin-right: 20px; }
.ficha div:last-child { border-right: 0; }
.ficha dt { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .14em; color: var(--hormigon); margin-bottom: 6px; }
.ficha dd { margin: 0; font-family: var(--display); font-size: 30px; font-weight: 800; line-height: 1; }
.ficha dd small { display: block; font-family: var(--texto); font-size: 13px; font-weight: 400; color: var(--hormigon); margin-top: 6px; text-transform: none; }
@media (max-width: 760px) { .ficha .contenedor { grid-template-columns: 1fr 1fr; } .ficha div:nth-child(2) { border-right: 0; } }

/* ---------- Etapas ---------- */
.cabecera { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: end; margin-bottom: clamp(28px, 4vw, 48px); }
.cabecera h2 { margin-top: 12px; }
@media (max-width: 760px) { .cabecera { grid-template-columns: 1fr; } }

.tira { display: grid; grid-template-columns: repeat(11, 1fr); gap: 6px; margin-bottom: 28px; }
.tira button {
  position: relative; background: var(--panel); border: 1px solid var(--linea); padding: 0; text-align: left; border-radius: 3px; overflow: hidden;
  transition: transform .15s ease, border-color .15s ease;
}
.tira button img { aspect-ratio: 4/3; object-fit: cover; width: 100%; filter: grayscale(1) contrast(.9); transition: filter .25s; }
.tira button:hover img, .tira button[aria-pressed=true] img { filter: none; }
.tira button[aria-pressed=true] { border-color: var(--tinta); transform: translateY(-3px); box-shadow: 0 10px 24px -14px rgba(0,0,0,.5); }
.tira .num { position: absolute; top: 6px; left: 6px; z-index: 2; font-family: var(--display); font-weight: 900; font-size: 22px; line-height: 1; background: var(--tinta); color: var(--cal); padding: 3px 6px 2px; }
.tira .tit { display: block; padding: 8px 7px 9px; font-size: 11.5px; font-weight: 600; line-height: 1.2; min-height: 44px; }
.tira button.proyecto img { opacity: .55; }
.tira button.proyecto .tit::after { content: ' (proyecto)'; font-weight: 400; color: var(--hormigon); }
.tira button.actual::after { content: 'Estamos acá'; position: absolute; right: -36px; top: 18px; transform: rotate(35deg); background: var(--oro); color: var(--tinta); font-family: var(--mono); font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; padding: 3px 34px; border-block: 2px solid var(--tinta); }
@media (max-width: 1100px) { .tira { grid-template-columns: repeat(6, 1fr); } }
@media (max-width: 760px) { .tira { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 480px) { .tira { grid-template-columns: repeat(3, 1fr); } }

.detalle { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(20px, 3vw, 40px); background: var(--panel); border: 1px solid var(--linea); border-radius: 4px; padding: clamp(16px, 2.5vw, 28px); }
.detalle .grande { aspect-ratio: 4/3; object-fit: cover; width: 100%; border-radius: 3px; background: var(--cal-osc); }
.detalle .miniaturas { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.detalle .miniaturas button { padding: 0; border: 2px solid transparent; border-radius: 3px; overflow: hidden; background: none; }
.detalle .miniaturas button[aria-pressed=true] { border-color: var(--oro); }
.detalle .miniaturas img { width: 84px; aspect-ratio: 4/3; object-fit: cover; }
.detalle .texto { display: flex; flex-direction: column; justify-content: center; }
.detalle .texto .num { font-family: var(--display); font-weight: 900; font-size: clamp(64px, 8vw, 110px); line-height: .8; color: var(--oro); }
.detalle .texto h3 { margin: 10px 0 14px; }
.detalle .texto p { color: #2B2A24; }
.detalle .etiqueta-actual { display: inline-block; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; padding: 5px 10px; background: var(--oro); border-radius: 2px; margin-bottom: 10px; align-self: flex-start; }
@media (max-width: 760px) { .detalle { grid-template-columns: 1fr; } }

/* ---------- Qué falta ---------- */
.frente { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 3vw, 48px); align-items: center; margin-bottom: clamp(40px, 5vw, 64px); }
.render { position: relative; border-radius: 4px; overflow: hidden; box-shadow: 0 30px 60px -30px rgba(23,22,15,.5); }
.render img { width: 100%; }
.render .marca-proyecto { position: absolute; top: 12px; left: 12px; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; background: rgba(23,22,15,.8); color: var(--cal); padding: 6px 10px; }
.hotspot { position: absolute; transform: translate(-11px, -50%); background: none; border: 0; padding: 0; display: flex; align-items: center; gap: 8px; }
.hotspot .punto { width: 22px; height: 22px; border-radius: 50%; background: var(--oro); border: 3px solid var(--tinta); box-shadow: 0 0 0 0 rgba(232,163,23,.7); animation: latido 2.2s infinite; flex: none; }
.hotspot .nombre { background: var(--tinta); color: var(--cal); font-family: var(--mono); font-size: 11px; letter-spacing: .08em; padding: 5px 9px; border-radius: 2px; white-space: nowrap; opacity: 0; transform: translateX(-6px); transition: opacity .2s, transform .2s; }
.hotspot:hover .nombre, .hotspot:focus-visible .nombre { opacity: 1; transform: none; }
@media (max-width: 760px) { .hotspot .nombre { opacity: 1; transform: none; } }
@media (max-width: 900px) { .frente { grid-template-columns: 1fr; } }

.remito { background: var(--panel); border: 1px solid var(--linea); border-radius: 4px; overflow: hidden; }
.remito header { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 18px 22px; border-bottom: 2px solid var(--tinta); flex-wrap: wrap; }
.remito header h3 { font-size: 24px; }
.remito header .mono { color: var(--hormigon); }
.grupo-titulo { font-family: var(--mono); font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; padding: 14px 22px 8px; color: var(--hormigon); background: var(--cal); border-bottom: 1px solid var(--linea); }
.item { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(0, 2fr) minmax(0, 1.4fr) minmax(0, 2.4fr); gap: 18px; align-items: center; padding: 16px 22px; border-bottom: 1px solid var(--linea); transition: background .3s; }
.item:last-child { border-bottom: 0; }
.item.resaltado { background: #FFF3D6; }
.item.completo { opacity: .55; }
.item .nombre { font-weight: 600; font-size: 17px; }
.item .nombre small { display: block; font-weight: 400; color: var(--hormigon); font-size: 13px; margin-top: 2px; }
.item .tag { display: inline-block; font-family: var(--mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; border: 1px solid var(--linea); padding: 2px 6px; border-radius: 2px; margin-left: 6px; vertical-align: middle; color: var(--hormigon); }
.item .tag.brl { border-color: var(--verde); color: var(--verde); }
.barra { height: 8px; background: var(--cal-osc); border-radius: 2px; overflow: hidden; margin-top: 6px; }
.barra i { display: block; height: 100%; background: var(--oro); width: 0; transition: width .8s cubic-bezier(.2,.7,.2,1); }
.item .cuenta { font-family: var(--mono); font-size: 13px; }
.item .cuenta b { font-family: var(--display); font-size: 26px; font-weight: 800; line-height: 1; margin-right: 4px; }
.item .cuenta .de { color: var(--hormigon); }
.item .precio { font-family: var(--mono); font-size: 13px; }
.item .precio b { display: block; font-size: 15px; }
.item .precio span { color: var(--hormigon); }
.aporte { display: flex; align-items: center; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
.aporte .stepper { display: inline-flex; border: 1.5px solid var(--tinta); border-radius: 3px; overflow: hidden; }
.aporte .stepper button { width: 34px; height: 38px; background: var(--panel); border: 0; font-size: 18px; }
.aporte .stepper button:hover { background: var(--cal); }
.aporte .stepper input { width: 52px; height: 38px; border: 0; border-inline: 1.5px solid var(--tinta); text-align: center; font-family: var(--mono); font-size: 15px; background: var(--panel); }
.aporte input.monto { width: 130px; height: 38px; border: 1.5px solid var(--tinta); border-radius: 3px; padding: 0 10px; font-family: var(--mono); font-size: 15px; background: var(--panel); }
.aporte .chips { display: flex; gap: 4px; }
.aporte .chips button { border: 1px solid var(--linea); background: var(--panel); font-family: var(--mono); font-size: 11.5px; padding: 4px 8px; border-radius: 2px; }
.aporte .chips button:hover { border-color: var(--tinta); }
.aporte .wa { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 14px; background: var(--tinta); color: var(--panel); text-decoration: none; font-size: 14px; font-weight: 600; border-radius: 3px; white-space: nowrap; }
.aporte .wa:hover { background: #2C2A20; }
.aporte .wa svg { width: 16px; height: 16px; fill: var(--oro); }
.aporte .equivale { flex-basis: 100%; text-align: right; font-family: var(--mono); font-size: 12px; color: var(--hormigon); min-height: 1.2em; }
input[type=number] { -moz-appearance: textfield; }
input[type=number]::-webkit-outer-spin-button, input[type=number]::-webkit-inner-spin-button { -webkit-appearance: none; }
.remito footer { padding: 16px 22px; background: var(--cal); font-size: 14px; color: var(--hormigon); border-top: 1px solid var(--linea); }
@media (max-width: 900px) {
  .item { grid-template-columns: 1fr 1fr; }
  .item .aporte { grid-column: 1 / -1; justify-content: flex-start; }
  .aporte .equivale { text-align: left; }
}
@media (max-width: 560px) { .item { grid-template-columns: 1fr; gap: 10px; } }

/* ---------- Cómo ayudar ---------- */
.vias { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.via { background: var(--panel); border: 1px solid var(--linea); border-radius: 4px; padding: 26px 24px 24px; display: flex; flex-direction: column; gap: 10px; }
.via .icono { width: 44px; height: 44px; border-radius: 50%; background: var(--oro); display: grid; place-items: center; font-family: var(--display); font-weight: 900; font-size: 20px; }
.via h3 { font-size: 24px; margin-top: 6px; }
.via p { color: #2B2A24; font-size: 15px; margin: 0; }
.dato { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--cal); border: 1px dashed var(--linea); padding: 10px 12px; border-radius: 3px; font-family: var(--mono); font-size: 14px; margin-top: auto; }
.dato button { border: 0; background: var(--tinta); color: var(--cal); font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; padding: 6px 9px; border-radius: 2px; }
.dato button.ok { background: var(--verde); }
.via.persona .dato { border-style: solid; }
@media (max-width: 900px) { .vias { grid-template-columns: 1fr; } }

/* ---------- Libro abierto ---------- */
.libro { background: var(--tinta); color: var(--cal); }
.libro .contenedor { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(28px, 4vw, 64px); align-items: center; }
.libro .eyebrow { color: rgba(230,228,221,.6); }
.libro h2 { margin: 12px 0 20px; }
.libro h2 em { font-style: normal; color: var(--oro); }
.libro p { color: rgba(230,228,221,.82); }
.libro .boton { background: var(--oro); border-color: var(--oro); color: var(--tinta); }
.libro-hoja { background: var(--panel); color: var(--tinta); border-radius: 4px; padding: 22px 24px; font-family: var(--mono); font-size: 13px; transform: rotate(-1.2deg); box-shadow: 0 30px 50px -30px #000; }
.libro-hoja .cab { display: flex; justify-content: space-between; border-bottom: 2px solid var(--tinta); padding-bottom: 8px; margin-bottom: 8px; font-weight: 500; }
.libro-hoja .fila { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px dashed var(--linea); }
.libro-hoja .fila span:first-child { color: var(--hormigon); }
.libro-hoja .fila.borroso span:last-child { filter: blur(5px); user-select: none; }
.libro-hoja .pie { margin-top: 10px; font-size: 11.5px; color: var(--hormigon); }
@media (max-width: 900px) { .libro .contenedor { grid-template-columns: 1fr; } }

/* ---------- Pie ---------- */
.pie-sitio { padding: 48px 0 32px; border-top: 6px solid transparent; border-image: var(--tape) 1; }
.pie-sitio .contenedor { display: grid; grid-template-columns: auto 1fr auto; gap: 32px; align-items: center; }
.pie-sitio img { width: 96px; }
.pie-sitio p { margin: 0; font-size: 14px; color: var(--hormigon); }
.pie-sitio strong { display: block; font-family: var(--display); font-size: 22px; text-transform: uppercase; color: var(--tinta); }
.pie-sitio a { color: var(--tinta); }
@media (max-width: 760px) { .pie-sitio .contenedor { grid-template-columns: 1fr; } }

/* ---------- Revelado al scroll ---------- */
.revela { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.revela.visto { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .revela { opacity: 1; transform: none; transition: none; }
  .estado .punto, .hotspot .punto { animation: none; }
  .barra i { transition: none; }
}