/* Web pública */
.wrap { width: min(1240px, 100% - 40px); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--paper); padding: 8px 12px; z-index: 50; }
.skip:focus { left: 8px; }
.site { background: var(--zinc); }

/* cabecera */
.site-header { position: sticky; top: 0; z-index: 40; background: color-mix(in srgb, var(--zinc) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line-soft); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 68px; }
.brand { text-decoration: none; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav > a:not(.btn) { padding: 8px 12px; text-decoration: none; font-weight: 500; color: var(--steel-700); border-radius: var(--radius-s); }
.site-nav > a:not(.btn):hover { color: var(--steel-950); background: var(--zinc-2); }
.site-nav > a.active { color: var(--steel-950); box-shadow: inset 0 -2px 0 var(--minio); border-radius: 0; }
.site-nav .nav-login { color: var(--steel-500); }
.site-nav .btn-primary { margin-left: 8px; }
.nav-toggle { display: none; }
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; position: absolute; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; padding: 12px 20px 20px; background: var(--zinc); border-bottom: 1px solid var(--line); }
  .site-nav.open { display: flex; }
  .site-nav > a:not(.btn) { padding: 12px 4px; border-bottom: 1px solid var(--line-soft); border-radius: 0; }
  .site-nav .btn-primary { margin: 12px 0 0; }
}

/* tipografía editorial */
.display { font-stretch: 125%; font-weight: 800; letter-spacing: -.025em; line-height: .98; font-size: clamp(40px, 6.4vw, 88px); }
.hero .display { font-size: clamp(42px, 6vw, 84px); max-width: 9.5em; }
.h2 { font-stretch: 118%; font-weight: 750; font-size: clamp(28px, 3.6vw, 44px); letter-spacing: -.015em; }
.h3 { font-stretch: 110%; font-weight: 700; font-size: 21px; }
.lead { font-size: clamp(17px, 1.6vw, 20px); line-height: 1.5; color: var(--steel-700); max-width: 60ch; }
.prose p + p { margin-top: 1em; }
.prose { max-width: 66ch; }
.section { padding-block: clamp(56px, 8vw, 112px); }
.section-head { display: grid; gap: 14px; margin-bottom: 40px; max-width: 760px; }

/* portada */
.hero { position: relative; background: #1C262D; color: #E9EDEF; overflow: hidden; }
.hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 1px; background: #3B4B56; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); min-height: min(720px, calc(100svh - 68px)); align-items: center; }
.hero-copy { position: relative; z-index: 2; padding-block: 64px; }
.hero-copy .display { color: #F4F6F7; }
.hero-copy .lead { color: #B7C3CA; margin-top: 26px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.hero .btn:not(.btn-primary) { background: transparent; color: #E9EDEF; border-color: #4A5B66; }
.hero .btn:not(.btn-primary):hover { border-color: #9AA8B2; }
.hero-3d { position: relative; height: 100%; min-height: 420px; margin-right: calc((100vw - min(1240px, 100vw - 40px)) / -2); }
.hero-3d canvas { position: absolute; inset: 0; }
.hero-caption { position: absolute; right: 20px; bottom: 18px; font-size: 12.5px; color: #8E9DA7; text-align: right; max-width: 280px; }
.hero-caption b { color: #C9D3D8; font-weight: 600; }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { padding-bottom: 8px; }
  .hero-3d { min-height: 340px; margin-right: -20px; margin-left: -20px; }
}

/* tira "hoy en el taller" */
.live { background: var(--steel-900); color: #DDE3E6; }
:root[data-theme="dark"] .live { background: #0D1215; }
.live-row { display: grid; grid-template-columns: auto repeat(4, minmax(0, 1fr)); gap: 0; align-items: stretch; }
.live-title { display: flex; align-items: center; gap: 10px; padding: 18px 24px 18px 0; font-weight: 600; font-size: 14px; color: #fff; }
.pulse { width: 9px; height: 9px; border-radius: 50%; background: var(--arc); box-shadow: 0 0 0 0 rgba(143, 211, 240, .6); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(143, 211, 240, 0); } 100% { box-shadow: 0 0 0 0 rgba(143, 211, 240, 0); } }
.live-item { padding: 16px 20px; border-left: 1px solid #34424C; }
.live-item b { display: block; font-size: 22px; font-stretch: 115%; font-weight: 700; color: #fff; }
.live-item span { font-size: 13px; color: #9AA8B2; }
@media (max-width: 900px) {
  .live-row { grid-template-columns: 1fr 1fr; }
  .live-title { grid-column: 1 / -1; padding: 16px 0 6px; }
  .live-item { border-left: 0; border-top: 1px solid #34424C; padding-inline: 0 12px; }
}

/* servicios */
.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px; background: var(--line); border: 1px solid var(--line); }
.service { background: var(--paper); padding: clamp(24px, 3.5vw, 40px); display: grid; gap: 14px; align-content: start; text-decoration: none; position: relative; }
.service:hover { background: color-mix(in srgb, var(--paper) 85%, var(--minio-wash)); }
.service .ico { color: var(--minio); width: 30px; height: 30px; }
.service h3 { font-stretch: 112%; font-size: 24px; }
.service p { color: var(--steel-700); max-width: 52ch; }
.service ul { margin: 4px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 14px; color: var(--steel-500); }
.service li { padding-left: 16px; position: relative; }
.service li::before { content: ""; position: absolute; left: 0; top: .62em; width: 8px; height: 2px; background: var(--steel-300); }
@media (max-width: 760px) { .services { grid-template-columns: 1fr; } }

/* proyectos */
.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.pcard { display: grid; gap: 14px; text-decoration: none; }
.pcard-media { position: relative; aspect-ratio: 4 / 3; background: #1C262D; overflow: hidden; }
.pcard-media canvas { width: 100%; height: 100%; }
.pcard-kind { position: absolute; left: 12px; top: 12px; z-index: 2; background: rgba(28, 38, 45, .85); color: #DDE3E6; padding: 4px 9px; font-size: 12px; font-weight: 600; border-radius: 3px; display: inline-flex; gap: 6px; align-items: center; }
.pcard-kind .ico { width: 14px; height: 14px; }
.pcard h3 { font-size: 19px; font-stretch: 108%; line-height: 1.2; }
.pcard p { font-size: 14px; color: var(--steel-500); }
.pcard:hover h3 { text-decoration: underline; text-decoration-color: var(--minio); text-underline-offset: 4px; }
.pcard-facts { display: flex; gap: 16px; font-size: 13px; color: var(--steel-700); flex-wrap: wrap; }
@media (max-width: 960px) { .project-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .project-grid { grid-template-columns: 1fr; } }

/* bloques varios */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.plate { background: var(--paper); border: 1px solid var(--line); padding: clamp(22px, 3vw, 36px); }
.plate.cut { border: 0; box-shadow: inset 0 0 0 1px var(--line); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.fact { background: var(--paper); padding: 18px 20px; }
.fact b { display: block; font-size: 28px; font-stretch: 118%; font-weight: 750; letter-spacing: -.01em; }
.fact span { font-size: 13.5px; color: var(--steel-500); }
.band { background: var(--steel-900); color: #E3E9EC; }
.band .lead { color: #B7C3CA; }
.band .h2 { color: #fff; }
.band .facts { grid-template-columns: 1fr 1fr; background: #34424C; border-color: #34424C; }
.band .fact { background: #26323A; }
.band .fact b { color: #fff; }
.band .fact span { color: #9AA8B2; }

.cta-band { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }

/* ficha proyecto */
.project-hero { background: #1C262D; color: #E9EDEF; }
.project-hero .wrap { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 32px; align-items: stretch; min-height: 520px; }
.project-hero .meta { padding-block: 48px; display: grid; align-content: center; gap: 18px; }
.project-hero .h2 { color: #fff; }
.project-hero p { color: #B7C3CA; }
.viewer { position: relative; min-height: 420px; }
.viewer canvas { position: absolute; inset: 0; }
.viewer-hint { position: absolute; left: 12px; bottom: 12px; font-size: 12px; color: #8E9DA7; }
.back-link { display: inline-flex; gap: 6px; align-items: center; color: #9AA8B2; text-decoration: none; font-size: 14px; }
.back-link:hover { color: #fff; }
@media (max-width: 900px) { .project-hero .wrap { grid-template-columns: 1fr; } .viewer { min-height: 340px; } }

/* calculadora */
.calc { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 0; border: 1px solid var(--line); background: var(--paper); }
.calc-form { padding: 28px; display: grid; gap: 18px; align-content: start; border-right: 1px solid var(--line); }
.calc-out { padding: 28px; display: grid; gap: 22px; align-content: start; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: var(--radius-s); overflow: hidden; flex-wrap: wrap; }
.seg button { border: 0; background: transparent; padding: 9px 14px; cursor: pointer; font-weight: 600; font-size: 14px; color: var(--steel-700); }
.seg button[aria-pressed="true"] { background: var(--steel-900); color: var(--zinc); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.calc-figure { height: 260px; background: #1C262D; position: relative; }
.calc-figure canvas { position: absolute; inset: 0; }
.big-num { font-size: clamp(34px, 4vw, 48px); font-stretch: 120%; font-weight: 800; letter-spacing: -.02em; line-height: 1; }
.calc-lines { display: grid; gap: 8px; font-size: 14px; }
.calc-lines div { display: flex; justify-content: space-between; border-bottom: 1px dashed var(--line); padding-bottom: 6px; }
.calc-note { font-size: 13px; color: var(--steel-500); }
@media (max-width: 860px) { .calc { grid-template-columns: 1fr; } .calc-form { border-right: 0; border-bottom: 1px solid var(--line); } }

/* formulario presupuesto */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 620px) { .form-grid { grid-template-columns: 1fr; } }
.drop { border: 1.5px dashed var(--steel-300); padding: 22px; text-align: center; color: var(--steel-500); cursor: pointer; background: var(--zinc); }
.drop.over { border-color: var(--minio); background: var(--minio-wash); }
.drop strong { color: var(--steel-900); }
.file-list { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 4px; font-size: 13.5px; }
.alert { padding: 14px 16px; border-left: 3px solid var(--minio); background: var(--minio-wash); }

/* trazabilidad */
.trace-head { display: flex; gap: 20px; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; }
.chain { display: grid; gap: 0; border-left: 2px solid var(--line); margin-left: 8px; }
.chain-step { position: relative; padding: 0 0 26px 26px; }
.chain-step::before { content: ""; position: absolute; left: -7px; top: 4px; width: 12px; height: 12px; background: var(--paper); border: 2px solid var(--minio); }
.chain-step h3 { font-size: 16px; font-stretch: 108%; margin-bottom: 6px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; font-size: 14px; }
.kv dt { color: var(--steel-500); }
.kv dd { margin: 0; }

/* tablas web */
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
.tbl th { text-align: left; font-weight: 600; color: var(--steel-500); font-size: 13px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.tbl-wrap { overflow-x: auto; }

/* pie */
.site-footer { background: #151C21; color: #B7C3CA; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-block: 56px 36px; font-size: 14px; }
.footer-grid a { color: #E3E9EC; }
.foot-h { font-size: 13px; color: #fff; font-weight: 600; margin-bottom: 10px; }
.foot-note { margin-top: 16px; max-width: 36ch; }
.foot-coords { margin-top: 8px; color: #8E9DA7; }
.foot-legal { display: flex; gap: 24px; flex-wrap: wrap; justify-content: space-between; border-top: 1px solid #2A363E; padding-block: 18px 26px; font-size: 12.5px; color: #8E9DA7; }
.foot-legal a { color: #8E9DA7; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }