/* =========================================================
   RTP · Reinforced Thermoplastic Pipe — Microsite
   Ecosystem: ALLIANCE / Market Alliance
   ========================================================= */

:root{
  --bg:            #06070b;
  --bg-soft:       #0b0d16;
  --surface:       #11131f;
  --surface-2:     #161927;
  --border:        rgba(255,255,255,.08);
  --border-soft:   rgba(255,255,255,.14);

  --ink:           #eef0f6;
  --ink-dim:       #9aa0b4;
  --ink-faint:     #6b7086;

  --primary:       #3646b0;
  --primary-light: #5064d6;
  --primary-dim:   #232c72;

  --accent:        #f2a93b;
  --accent-light:  #ffc46b;

  --ok:            #3fb88f;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --maxw: 1180px;

  --shadow-1: 0 10px 30px -12px rgba(0,0,0,.6);
  --shadow-2: 0 20px 60px -20px rgba(0,0,0,.7);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:'Montserrat',Inter,sans-serif;
  letter-spacing:-.01em;
  margin:0;
  color:var(--ink);
}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:768px){
  .container{padding-left:32px;padding-right:32px;}
}

.section{padding:40px 0;}
@media(min-width:768px){.section{padding:56px 0;}}
.section-tight{padding:32px 0;}

/* Ancla: compensa el header sticky al saltar por anclas internas */
section[id]{scroll-margin-top:84px;}
@media(min-width:1024px){section[id]{scroll-margin-top:74px;}}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent-light);
  margin-bottom:14px;
}
.eyebrow::before{
  content:'';
  width:18px;height:2px;background:var(--accent);
  display:inline-block;
}

h2.section-title{
  font-size:28px;
  font-weight:800;
  line-height:1.15;
  color:#fff;
}
@media(min-width:768px){h2.section-title{font-size:38px;}}

.section-lead{
  color:var(--ink-dim);
  font-size:15.5px;
  line-height:1.6;
  max-width:640px;
  margin-top:12px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:'Inter',sans-serif;
  font-weight:700;
  font-size:14.5px;
  padding:14px 24px;
  border-radius:10px;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .15s ease, box-shadow .15s ease, background .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),#e0902a);
  color:#1a1204;
  box-shadow:0 8px 24px -8px rgba(242,169,59,.55);
}
.btn-primary:hover{box-shadow:0 12px 30px -8px rgba(242,169,59,.7);}
.btn-secondary{
  background:rgba(255,255,255,.04);
  color:#fff;
  border-color:var(--border-soft);
}
.btn-secondary:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.3);}
.btn-ghost{
  background:transparent;
  color:var(--ink-dim);
  border-color:var(--border);
}
.btn-block{width:100%;}
.btn-sm{padding:10px 16px;font-size:13px;}

/* ---------- Header ---------- */
#site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(6,7,11,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease, background .25s ease;
}
#site-header.is-scrolled{
  box-shadow:0 8px 24px -10px rgba(0,0,0,.6);
  background:rgba(6,7,11,.96);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 0;
  gap:16px;
}
.brand-cluster{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.alliance-logo-mark{
  height:26px;width:auto;
  filter:drop-shadow(0 0 0 transparent);
  flex-shrink:0;
}
.brand-divider{
  width:1px;height:22px;background:var(--border-soft);flex-shrink:0;
}
.product-wordmark{
  display:flex;flex-direction:column;line-height:1.05;min-width:0;
}
.product-wordmark .name{
  font-family:'Montserrat',sans-serif;
  font-weight:800;
  font-size:17px;
  color:#fff;
  letter-spacing:.02em;
  white-space:nowrap;
}
.product-wordmark .tag{
  font-size:10.5px;
  color:var(--ink-faint);
  font-weight:500;
  /* Texto breve por diseño ("Consulta técnica y comercial" / "Technical &
     commercial inquiries"): no se trunca con ellipsis ni se oculta; si algún
     entorno de fuente/zoom lo estrecha igual, se permite pasar a una segunda
     línea en vez de recortarse silenciosamente. */
  white-space:normal;
  overflow:visible;
  max-width:190px;
}
.header-cta-group{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.lang-switch{
  display:flex;align-items:center;gap:2px;
  border:1px solid var(--border-soft);
  border-radius:8px;
  padding:2px;
  font-size:12px;
  font-weight:700;
}
.lang-switch a{
  padding:6px 9px;border-radius:6px;color:var(--ink-faint);
  transition:background .2s,color .2s;
}
.lang-switch a.active{background:var(--primary);color:#fff;}
.lang-switch a:not(.active):hover{color:#fff;}

nav.main-nav{
  display:none;
  gap:20px;
  align-items:center;
  flex-wrap:nowrap;
  min-width:0;
}
nav.main-nav a{
  font-size:13px;
  font-weight:600;
  color:var(--ink-dim);
  transition:color .2s;
  position:relative;
  white-space:nowrap;
}
nav.main-nav a:hover{color:#fff;}
/* Por debajo de 1180px (el ancho máximo real de contenido, --maxw) el nav
   completo NO se muestra y el botón CTA de cabecera queda oculto: no hay
   garantía de espacio para logo + marca + 6 enlaces + selector de idioma +
   botón sin cortes ni superposiciones. El acceso equivalente queda en el
   menú móvil (hamburguesa), que se activa ANTES de que la navegación
   pudiera desbordar, no después. */
.header-cta-group .btn-primary-header{display:none;}
@media(min-width:1180px){
  nav.main-nav{display:flex;}
  .header-cta-group .btn-primary-header{display:inline-flex;}
}

.menu-toggle{
  display:flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:8px;
  border:1px solid var(--border-soft);
  background:rgba(255,255,255,.03);
  color:#fff;
  cursor:pointer;
  flex-shrink:0;
}
@media(min-width:1180px){.menu-toggle{display:none;}}

#mobile-drawer{
  position:fixed;inset:0;z-index:200;
  background:rgba(4,5,8,.98);
  backdrop-filter:blur(10px);
  transform:translateX(100%);
  transition:transform .3s ease;
  display:flex;flex-direction:column;
  padding:20px;
  overflow-y:auto;
  max-height:100vh;
  -webkit-overflow-scrolling:touch;
}
#mobile-drawer.open{transform:translateX(0);}
.drawer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;}
#mobile-drawer nav{display:flex;flex-direction:column;gap:4px;}
#mobile-drawer nav a{
  padding:14px 6px;font-size:17px;font-weight:700;color:#fff;
  border-bottom:1px solid var(--border);
}
.drawer-footer{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:20px;}

/* ---------- Hero ---------- */
#hero{
  position:relative;
  padding:52px 0 60px;
  overflow:hidden;
  background:
    radial-gradient(ellipse 900px 500px at 85% -10%, rgba(54,70,176,.35), transparent 60%),
    radial-gradient(ellipse 700px 500px at 0% 100%, rgba(242,169,59,.10), transparent 60%),
    var(--bg);
}
@media(min-width:1024px){#hero{padding:72px 0 90px;}}
.hero-grid{
  display:grid;
  gap:36px;
  align-items:center;
}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:48px;}
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(54,70,176,.16);
  border:1px solid rgba(80,100,214,.35);
  color:#c3cbff;
  font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:7px 14px;border-radius:100px;
  margin-bottom:20px;
}
.hero-kicker i{color:var(--accent-light);}
.hero-title{
  font-size:clamp(30px,6vw,52px);
  font-weight:800;
  color:#fff;
  line-height:1.06;
}
.hero-title .accent{
  color:var(--accent-light);
}
.hero-subtitle{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.6;
  color:var(--ink-dim);
  max-width:520px;
}
.hero-backed{
  margin-top:18px;
  font-size:13px;
  color:var(--ink-faint);
  border-left:2px solid var(--primary-light);
  padding-left:12px;
  max-width:480px;
  line-height:1.5;
}
.hero-cta-row{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:10px;margin-top:36px;max-width:480px;
}
.hero-stat{
  background:rgba(255,255,255,.03);
  border:1px solid var(--border);
  border-radius:12px;
  padding:12px 10px;
  text-align:left;
}
.hero-stat .v{font-size:18px;font-weight:800;color:#fff;font-family:'Montserrat',sans-serif;}
.hero-stat .l{font-size:10.5px;color:var(--ink-faint);margin-top:2px;line-height:1.3;}

.hero-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border-soft);
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3.1;
}
.hero-media img{
  width:100%;height:100%;object-fit:cover;object-position:center;
}
.hero-media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%, rgba(6,7,11,.75) 100%);
}
.hero-media-badge{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:rgba(6,7,11,.72);
  border:1px solid var(--border-soft);
  backdrop-filter:blur(6px);
  padding:9px 14px;border-radius:10px;
  font-size:12px;font-weight:600;color:#fff;
  display:flex;align-items:center;gap:8px;
}
.hero-media-badge i{color:var(--accent-light);}
.hero-media-cap{
  position:absolute;right:16px;bottom:16px;z-index:2;
  font-size:10.5px;color:var(--ink-faint);font-weight:600;
  background:rgba(6,7,11,.6);padding:4px 9px;border-radius:100px;
}

/* ---------- Producto ---------- */
.product-intro{
  display:grid;gap:32px;align-items:center;
}
@media(min-width:1024px){.product-intro{grid-template-columns:.9fr 1.1fr;gap:52px;}}
.product-photo{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;border:1px solid var(--border);
  aspect-ratio:5/4;
}
.product-photo img{width:100%;height:100%;object-fit:cover;}
.product-photo-cap{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.8));
  padding:20px 12px 8px;font-size:11px;color:#dfe1ea;font-weight:600;
}
.product-sub-title{font-size:13px;font-weight:800;color:#fff;text-transform:uppercase;letter-spacing:.04em;margin:26px 0 12px;}
.benefit-list-compact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.benefit-list-compact li{
  font-size:13px;color:var(--ink-dim);line-height:1.5;display:flex;align-items:flex-start;gap:10px;
}
.benefit-list-compact li i{color:var(--accent-light);margin-top:2px;flex-shrink:0;width:16px;}
.app-compact-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.app-compact-note{font-size:11.5px;color:var(--ink-faint);line-height:1.6;margin-top:12px;}
.layer-mini-list{
  display:flex;flex-direction:column;gap:10px;margin-top:24px;
}
.layer-mini{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:10px;
  font-size:13.5px;
}
.layer-mini .dot{
  width:10px;height:10px;border-radius:50%;flex-shrink:0;
}
.layer-mini strong{color:#fff;font-weight:700;margin-right:4px;}
.layer-mini span.mat{color:var(--ink-faint);font-size:12px;}

/* ---------- Familias / Aplicaciones cards ---------- */
.app-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:36px;
}
@media(min-width:640px){.app-grid{grid-template-columns:repeat(3,1fr);}}
@media(min-width:1024px){.app-grid{grid-template-columns:repeat(6,1fr);gap:16px;}}
.app-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:20px 14px;
  text-align:center;
  transition:transform .2s ease, border-color .2s ease, background .2s ease;
}
.app-card:hover{transform:translateY(-4px);border-color:var(--primary-light);background:var(--surface-2);}
.app-card .icon{
  width:46px;height:46px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary-dim),var(--primary));
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 14px;color:#dfe4ff;font-size:19px;
}
.app-card .label{font-size:13px;font-weight:700;color:#fff;line-height:1.3;}

.app-notes{
  margin-top:28px;display:flex;flex-direction:column;gap:10px;
}
.app-note{
  font-size:12.5px;color:var(--ink-faint);
  padding:10px 14px;background:rgba(255,255,255,.02);
  border:1px dashed var(--border-soft);border-radius:8px;
  line-height:1.5;
}

/* ---------- Familias de producto ---------- */
.family-grid{
  display:grid;gap:20px;margin-top:36px;
}
@media(min-width:900px){.family-grid{grid-template-columns:1fr 1fr;}}
.family-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:flex;flex-direction:column;
}
.family-photo{aspect-ratio:16/9;overflow:hidden;}
.family-photo img{width:100%;height:100%;object-fit:cover;}
.family-body{padding:24px;}
.family-body h3{font-size:19px;font-weight:800;color:#fff;margin-bottom:8px;}
.family-body .use{font-size:13.5px;color:var(--ink-dim);line-height:1.55;margin-bottom:16px;}
.family-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.chip{
  font-size:11.5px;font-weight:700;
  background:rgba(80,100,214,.14);
  color:#c3cbff;
  border:1px solid rgba(80,100,214,.3);
  padding:6px 11px;border-radius:100px;
  white-space:nowrap;
}
.chip.amber{background:rgba(242,169,59,.14);color:var(--accent-light);border-color:rgba(242,169,59,.35);}
.family-specs{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  border-top:1px solid var(--border);padding-top:16px;
}
.family-specs .fs{text-align:left;}
.family-specs .fs .k{font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);}
.family-specs .fs .v{font-size:13.5px;font-weight:700;color:#fff;margin-top:3px;}

/* ---------- Tabla especificaciones ---------- */
.spec-summary-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:32px;
}
@media(min-width:768px){.spec-summary-grid{grid-template-columns:repeat(3,1fr);}}
@media(min-width:1100px){.spec-summary-grid{grid-template-columns:repeat(6,1fr);}}
.spec-card{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  padding:16px 14px;
}
.spec-card i{color:var(--accent-light);font-size:16px;margin-bottom:8px;display:block;}
.spec-card .k{font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);}
.spec-card .v{font-size:14.5px;font-weight:800;color:#fff;margin-top:4px;line-height:1.3;}

.table-wrap{
  margin-top:32px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
}
table.spec-table{width:100%;border-collapse:collapse;font-size:13.5px;}
table.spec-table thead th{
  text-align:left;
  background:rgba(255,255,255,.03);
  color:var(--ink-faint);
  font-weight:700;
  font-size:11.5px;
  text-transform:uppercase;
  letter-spacing:.05em;
  padding:12px 16px;
  border-bottom:1px solid var(--border);
}
table.spec-table td{
  padding:13px 16px;
  border-bottom:1px solid var(--border);
  color:var(--ink);
  font-weight:600;
}
table.spec-table td.hl{color:#fff;font-weight:800;}
table.spec-table tr:last-child td{border-bottom:none;}
.table-note{
  padding:12px 16px;font-size:12px;color:var(--ink-faint);
  background:rgba(255,255,255,.015);border-top:1px solid var(--border);
  line-height:1.5;
}
/* mobile stacked table */
@media(max-width:640px){
  table.spec-table thead{display:none;}
  table.spec-table, table.spec-table tbody, table.spec-table tr, table.spec-table td{display:block;width:100%;}
  table.spec-table tr{padding:14px 16px;border-bottom:1px solid var(--border);}
  table.spec-table td{padding:4px 0;border:none;display:flex;justify-content:space-between;gap:12px;}
  table.spec-table td::before{content:attr(data-label);color:var(--ink-faint);font-weight:600;font-size:12px;}
}

/* ---------- Tecnología multicapa ---------- */
.tech-wrap{
  display:grid;gap:40px;margin-top:36px;align-items:center;
}
@media(min-width:1024px){.tech-wrap{grid-template-columns:1fr 1fr;}}
.layer-diagram{
  display:flex;flex-direction:column;gap:0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border-soft);
}
.layer-band{
  padding:26px 24px;
  display:flex;flex-direction:column;gap:4px;
  position:relative;
}
.layer-band .num{
  font-family:'Montserrat',sans-serif;font-weight:800;
  font-size:11px;letter-spacing:.08em;text-transform:uppercase;opacity:.8;
}
.layer-band .name{font-size:17px;font-weight:800;}
.layer-band .mat{font-size:12.5px;opacity:.85;}
.layer-band.l1{background:linear-gradient(135deg,#1c2050,#232c72);color:#dfe4ff;}
.layer-band.l2{background:linear-gradient(135deg,#3646b0,#4c5cc9);color:#fff;padding:32px 24px;}
.layer-band.l3{background:linear-gradient(135deg,#4a3313,#7a541f);color:#ffe6bd;}
.layer-band.l3 .name{color:#fff;}

.process-flow{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:24px;
  font-size:12px;color:var(--ink-faint);
}
.process-flow .step{
  background:var(--surface);border:1px solid var(--border);
  padding:8px 12px;border-radius:8px;color:var(--ink-dim);font-weight:600;
}
.process-flow i{color:var(--accent-light);font-size:11px;}

.tech-materials{display:flex;flex-direction:column;gap:20px;}
.material-row{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px 20px;
}
.material-row .lbl{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);margin-bottom:8px;}
.material-row .tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- Performance / ventajas ---------- */
.perf-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:36px;
}
@media(min-width:768px){.perf-grid{grid-template-columns:repeat(4,1fr);}}
.perf-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:22px 18px;
}
.perf-card i{
  width:42px;height:42px;border-radius:10px;
  background:rgba(242,169,59,.14);color:var(--accent-light);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:14px;
}
.perf-card .t{font-size:14px;font-weight:800;color:#fff;line-height:1.3;}
.perf-card .d{font-size:12px;color:var(--ink-faint);margin-top:6px;line-height:1.5;}

/* ---------- Validación técnica y normas (consolidado) ---------- */
#validacion-normas, #validation-standards{
  background:var(--bg-soft);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.validation-grid{display:grid;gap:16px;margin-top:32px;}
@media(min-width:900px){.validation-grid{grid-template-columns:1fr 1fr;}}
.val-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:18px 22px;
}
.val-card h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.val-card h4 i{color:var(--accent-light);font-size:14px;}
.val-card p{font-size:13px;color:var(--ink-dim);line-height:1.6;}
.val-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

/* .val-card ahora es un <details> desplegable (punto 7 de la
   simplificación comercial): acceso y estado siguen visibles en el
   <summary>; el detalle de pruebas/normas se despliega bajo demanda. */
details.val-card summary{
  cursor:pointer;font-size:14px;font-weight:800;color:#fff;list-style:none;
  display:flex;align-items:center;gap:8px;
}
details.val-card summary::-webkit-details-marker{display:none;}
details.val-card summary::before{content:'▸ ';color:var(--accent-light);font-size:12px;}
details.val-card[open] summary::before{content:'▾ ';}
details.val-card summary i{color:var(--accent-light);font-size:14px;}
.val-card-body{margin-top:14px;}

.burst-table-wrap{margin-top:14px;}
table.burst-table{width:100%;border-collapse:collapse;font-size:12.5px;}
table.burst-table th{
  text-align:left;color:var(--ink-faint);font-weight:700;font-size:10.5px;
  text-transform:uppercase;padding:8px 0;border-bottom:1px solid var(--border);
}
table.burst-table td{padding:9px 0;border-bottom:1px solid var(--border);color:var(--ink);font-weight:700;}
table.burst-table td.warn{color:var(--accent-light);}
.burst-disclaimer{
  margin-top:10px;font-size:11.5px;color:var(--ink-faint);
  background:rgba(242,169,59,.06);border:1px solid rgba(242,169,59,.2);
  padding:9px 12px;border-radius:8px;line-height:1.5;
}
.val-caveat{
  font-size:11px;color:var(--ink-faint);line-height:1.5;margin-top:10px;
  padding-top:10px;border-top:1px dashed var(--border);
}

/* ---------- Conexiones ---------- */
.connections-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:32px;
}
@media(min-width:768px){.connections-grid{grid-template-columns:repeat(3,1fr);}}
.conn-card{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  padding:18px 16px;text-align:center;
}
.conn-card i{color:var(--primary-light);font-size:20px;margin-bottom:10px;display:block;}
.conn-card .t{font-size:13px;font-weight:700;color:#fff;}
.conn-materials{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.conn-materials .lbl{font-size:12px;color:var(--ink-faint);margin-right:6px;}

/* ---------- Galería ---------- */
.gallery-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:32px;
}
@media(min-width:768px){.gallery-grid{grid-template-columns:repeat(3,1fr);}}
.gallery-item{
  position:relative;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border);
  aspect-ratio:4/3;
}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.gallery-item:hover img{transform:scale(1.06);}
.gallery-item .cap{
  position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(180deg,transparent,rgba(0,0,0,.85));
  padding:24px 12px 10px;
  font-size:11.5px;color:#dfe1ea;font-weight:600;line-height:1.3;
}

/* ---------- Origin note ---------- */
.origin-note{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:14px;font-size:12px;color:var(--ink-faint);
  background:rgba(255,255,255,.03);border:1px solid var(--border);
  padding:7px 12px;border-radius:100px;
}
.origin-note i{color:var(--accent-light);}

/* ---------- Catálogo: config tiles ---------- */
.config-catalog-title{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;}
.config-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
@media(min-width:640px){.config-grid{grid-template-columns:repeat(3,1fr);}}
@media(min-width:1024px){.config-grid{grid-template-columns:repeat(6,1fr);}}
.config-tile{
  background:linear-gradient(160deg,var(--surface),var(--surface-2));
  border:1px solid var(--border-soft);
  border-radius:12px;
  padding:16px 12px;
  text-align:center;
}
.config-tile .dn{font-family:'Montserrat',sans-serif;font-weight:800;font-size:16px;color:#fff;}
.config-tile .pn{font-size:11.5px;color:var(--accent-light);font-weight:700;margin-top:4px;}

.family-specs-4{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;border-top:1px solid var(--border);padding-top:16px;}
@media(min-width:600px){.family-specs-4{grid-template-columns:repeat(4,1fr);}}

/* ---------- Normas y calificación de proyecto ---------- */
.reg-grid{display:grid;gap:14px;margin-top:26px;}
@media(min-width:800px){.reg-grid{grid-template-columns:1fr 1fr;}}
.reg-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:20px 22px;
}
.reg-card h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.reg-card h4 i{color:var(--accent-light);}
.reg-card p{font-size:12.5px;color:var(--ink-dim);line-height:1.6;}
.reg-disclaimer{
  margin-top:18px;font-size:11.5px;color:var(--ink-faint);line-height:1.6;
  background:rgba(255,255,255,.02);border:1px dashed var(--border-soft);
  padding:12px 14px;border-radius:8px;
}

/* ---------- Requirement builder (configurador de solicitud) ---------- */
.requirement-form{text-align:left;margin-top:8px;}
.req-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:12px;}
@media(min-width:700px){.req-grid{grid-template-columns:repeat(2,1fr);}}
.req-full{grid-column:1/-1;}
.req-field-wrap label{display:block;font-size:12px;color:var(--ink-faint);margin-bottom:6px;font-weight:600;text-align:left;}
.req-field{
  width:100%;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:8px;
  padding:11px 12px;
  color:var(--ink);
  font-family:inherit;
  font-size:13.5px;
}
.req-field:focus{outline:none;border-color:var(--primary-light);}
select.req-field{cursor:pointer;}
textarea.req-field{resize:vertical;min-height:80px;}
.req-actions{margin-top:26px;}
.req-output{
  margin-top:28px;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--radius-md);
  padding:22px 22px 26px;
  text-align:left;
}
.req-output-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;font-size:14px;font-weight:800;color:#fff;flex-wrap:wrap;}
.req-output-head i{color:var(--ok);margin-right:6px;}
.req-summary-text{
  background:var(--bg-soft);
  border:1px solid var(--border);
  border-radius:8px;
  padding:16px;
  font-family:'Inter',monospace;
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink);
  white-space:pre-wrap;
  word-break:break-word;
  max-height:340px;
  overflow-y:auto;
  margin:0 0 14px;
}
.req-output-note{font-size:11.5px;color:var(--ink-faint);line-height:1.6;margin-bottom:16px;}
.cta-alt-note{margin-top:20px;font-size:12.5px;color:var(--ink-faint);}
.cta-alt-note a{color:var(--accent-light);font-weight:700;}

/* ---------- Requirement builder section wrapper ---------- */
#requerimiento, #requirement{
  background:var(--bg-soft);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}

/* ---------- Cierre simplificado (tras el formulario de requerimiento) ----------
   Punto 9 de la simplificación comercial: sin checklist ni CTA repetido a
   "preparar otro requerimiento"; solo un cierre breve + correo, con el
   enlace a Market Alliance como acción secundaria (btn-ghost). */
#cta-final{
  background:var(--bg-soft);
  border-top:1px solid var(--border);
}
.cta-close-text{
  font-size:14px;color:var(--ink-dim);line-height:1.7;max-width:560px;margin:0 auto;
}
.cta-close-text a{color:var(--accent-light);font-weight:700;}
.cta-close-secondary{margin-top:18px;}
.cta-btn-row{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:36px;
}

/* ---------- Market Alliance strip ---------- */
.ma-strip{
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--radius-lg);
  padding:28px 26px;
  margin-top:56px;
  display:flex;flex-direction:column;gap:16px;align-items:center;text-align:center;
}
@media(min-width:768px){
  .ma-strip{flex-direction:row;text-align:left;justify-content:space-between;padding:30px 36px;}
}
.ma-strip .ma-text .t{font-size:16px;font-weight:800;color:#fff;}
.ma-strip .ma-text .d{font-size:13px;color:var(--ink-faint);margin-top:4px;}

/* ---------- Footer ---------- */
footer{
  background:#040509;
  border-top:1px solid var(--border);
  padding:48px 0 26px;
}
.footer-top{
  display:flex;flex-direction:column;gap:28px;
  padding-bottom:28px;border-bottom:1px solid var(--border);
}
@media(min-width:768px){
  .footer-top{flex-direction:row;justify-content:space-between;align-items:flex-start;}
}
.footer-brand{display:flex;align-items:center;gap:12px;}
.footer-brand img{height:22px;}
.footer-brand .div{width:1px;height:20px;background:var(--border-soft);}
.footer-brand .txt{font-size:13px;color:var(--ink-faint);font-weight:600;}
.footer-ma a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:700;color:#fff;
  border:1px solid var(--border-soft);padding:10px 16px;border-radius:8px;
}
.footer-ma a:hover{border-color:var(--primary-light);}
.footer-disclaimer{
  margin-top:24px;font-size:12px;line-height:1.7;color:var(--ink-faint);max-width:900px;
}
.footer-bottom{
  margin-top:24px;display:flex;flex-direction:column;gap:14px;
  font-size:12px;color:var(--ink-faint);
}
@media(min-width:768px){
  .footer-bottom{flex-direction:row;justify-content:space-between;align-items:center;}
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-links a{color:var(--ink-faint);}
.footer-links a:hover{color:#fff;}
.footer-lang{display:flex;gap:2px;}
.footer-lang a{padding:4px 8px;border:1px solid var(--border);border-radius:6px;font-weight:700;}
.footer-lang a.active{background:var(--primary);color:#fff;border-color:var(--primary);}

/* Utility */
.text-center{text-align:center;}
.mt-0{margin-top:0 !important;}
.mx-auto{margin-left:auto;margin-right:auto;}
.max-w-section-lead{max-width:640px;}
::selection{background:var(--primary);color:#fff;}

/* Fade-in on scroll — con salvaguarda si JS falla o tarda en cargar.
   Solo se oculta el contenido cuando JS confirma que está activo
   (marca .js-active en <html>); sin esa marca, todo permanece visible. */
.reveal{transition:opacity .6s ease, transform .6s ease;}
html.js-active .reveal{opacity:0;transform:translateY(16px);}
html.js-active .reveal.in{opacity:1;transform:translateY(0);}
noscript{display:block;}

/* =========================================================
   Catálogo "Sistemas de tubería" — tabs, fichas, filtros
   ========================================================= */
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.cat-tab{
  font-family:'Inter',sans-serif;font-weight:700;font-size:13.5px;
  padding:12px 18px;border-radius:10px;
  background:rgba(255,255,255,.03);color:var(--ink-dim);
  border:1px solid var(--border-soft);cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap;
  transition:background .2s,color .2s,border-color .2s;
}
.cat-tab:hover{background:rgba(255,255,255,.07);color:#fff;}
.cat-tab.active{background:var(--primary);color:#fff;border-color:var(--primary-light);}
.cat-status-tag{
  font-size:9.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;
  background:rgba(242,169,59,.16);color:var(--accent-light);
  padding:3px 7px;border-radius:100px;
}
.cat-panel{margin-top:28px;}
.cat-shortdesc{font-size:14px;color:var(--ink-dim);line-height:1.6;max-width:760px;margin-bottom:14px;}

.catalog-note-empty{font-size:13px;color:var(--ink-faint);margin-top:16px;font-style:italic;}

.line-unresolved{
  margin-top:16px;font-size:11.5px;color:var(--accent-light);line-height:1.6;
  background:rgba(242,169,59,.07);border:1px dashed rgba(242,169,59,.35);
  padding:10px 12px;border-radius:8px;
}
.line-unresolved i{margin-right:6px;}

.catalog-filters{
  display:grid;gap:10px;margin-top:28px;margin-bottom:6px;
  grid-template-columns:1fr;
}
@media(min-width:700px){.catalog-filters{grid-template-columns:1.4fr 1fr 1fr;}}
.catalog-filter-note{font-size:11px;color:var(--ink-faint);margin-bottom:20px;line-height:1.5;}

.catalog-empty-state{
  margin-top:20px;padding:28px 20px;text-align:center;
  background:var(--surface);border:1px dashed var(--border-soft);border-radius:var(--radius-md);
  color:var(--ink-faint);font-size:13.5px;
}
.catalog-empty-state i{display:block;font-size:22px;margin-bottom:10px;color:var(--ink-faint);}

.ficha-grid{
  display:grid;grid-template-columns:1fr;gap:16px;margin-top:20px;
}
@media(min-width:700px){.ficha-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1100px){.ficha-grid{grid-template-columns:repeat(3,1fr);}}

.ficha-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:20px;display:flex;flex-direction:column;gap:12px;
}
.ficha-card-sample{border-style:dashed;border-color:rgba(242,169,59,.35);background:rgba(242,169,59,.03);}
.ficha-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap;}
.ficha-dn{font-family:'Montserrat',sans-serif;font-weight:800;font-size:22px;color:#fff;}
.ficha-pn-row{display:flex;gap:6px;flex-wrap:wrap;}
.ficha-badge{
  font-size:11px;font-weight:700;line-height:1.4;
  background:rgba(242,169,59,.1);border:1px solid rgba(242,169,59,.3);color:var(--accent-light);
  padding:8px 10px;border-radius:8px;display:flex;align-items:flex-start;gap:6px;
}
.ficha-badge i{margin-top:2px;flex-shrink:0;}
.ficha-badge-sample{background:rgba(80,100,214,.1);border-color:rgba(80,100,214,.3);color:#c3cbff;}
.ficha-mini-table{display:flex;flex-direction:column;gap:4px;font-size:12px;}
.ficha-mini-row{display:flex;justify-content:space-between;color:var(--ink-dim);padding:4px 0;border-bottom:1px dashed var(--border);}
.ficha-mini-row strong{color:#fff;}

/* ---------- Jerarquía DN / presión nominal (punto 2 simplificación) ----------
   La designación de referencia (PNxx) y el valor de presión documentado se
   muestran en filas separadas, nunca combinados en una sola magnitud. */
.ficha-pressure-rows{display:flex;flex-direction:column;gap:6px;}
.ficha-pressure-rows-inline{display:flex;flex-direction:column;gap:6px;margin-bottom:6px;}
.ficha-pressure-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  background:rgba(255,255,255,.03);border:1px solid var(--border);
  border-radius:8px;padding:8px 12px;
}
.ficha-pressure-designation{font-size:12px;font-weight:700;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.03em;}
.ficha-pressure-value{font-family:'Montserrat',sans-serif;font-weight:800;font-size:17px;color:var(--accent-light);}
.ficha-pressure-value .unit{font-size:12px;font-weight:700;color:var(--ink-dim);margin-left:2px;}

/* Etiqueta breve que reemplaza las advertencias largas repetidas */
.ficha-short-tag{
  display:flex;align-items:flex-start;gap:6px;font-size:11.5px;font-weight:600;line-height:1.4;
  color:var(--ink-dim);background:rgba(255,255,255,.03);border:1px solid var(--border-soft);
  padding:8px 10px;border-radius:8px;
}
.ficha-short-tag i{color:var(--accent-light);margin-top:2px;flex-shrink:0;}

/* Resultados de ruptura (burst test): detalle técnico separado de la
   presión de operación/nominal, visible solo dentro de la ficha completa */
.burst-detail-block{margin-top:10px;padding-top:10px;border-top:1px dashed var(--border);}
.burst-detail-label{font-size:10.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);font-weight:700;margin-bottom:6px;}

.ficha-illustrative{
  display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--ink-faint);
  background:rgba(255,255,255,.03);border:1px dashed var(--border-soft);
  padding:6px 10px;border-radius:8px;
}
.ficha-illustrative-block{width:100%;justify-content:center;padding:18px 10px;font-size:12.5px;}

.ficha-details summary{
  cursor:pointer;font-size:12.5px;font-weight:700;color:var(--accent-light);
  padding:6px 0;list-style:none;
}
.ficha-details summary::-webkit-details-marker{display:none;}
.ficha-details summary::before{content:'▸ ';}
.ficha-details[open] summary::before{content:'▾ ';}

.ficha-field-grid{display:flex;flex-direction:column;gap:10px;margin-top:10px;}
.ficha-field{display:flex;flex-direction:column;gap:3px;font-size:12.5px;padding:8px 0;border-bottom:1px solid var(--border);}
.ficha-field:last-child{border-bottom:none;}
.ff-k{font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);font-weight:700;}
.ff-v{color:var(--ink);line-height:1.5;}
.pending-tag{
  display:inline-block;font-size:11px;font-weight:700;color:var(--ink-faint);
  background:rgba(255,255,255,.04);border:1px dashed var(--border-soft);
  padding:3px 8px;border-radius:100px;
}
.ficha-disclaimer{font-size:11px;color:var(--ink-faint);line-height:1.5;margin-top:6px;border-top:1px dashed var(--border);padding-top:10px;}
.ficha-req-btn, .ref-req-btn, .product-req-btn{align-self:flex-start;}
.ficha-sample-title{font-size:15px;font-weight:800;color:#fff;margin:34px 0 4px;}

/* Desplegable "Información pendiente para completar el catálogo"
   (fichas de ejemplo de estructura, siempre identificadas como tal) */
.pending-info-details{
  margin-top:34px;background:rgba(255,255,255,.02);border:1px dashed var(--border-soft);
  border-radius:var(--radius-md);padding:16px 18px;
}
.pending-info-details summary{
  cursor:pointer;font-size:14px;font-weight:800;color:#fff;list-style:none;
  display:flex;align-items:center;gap:8px;
}
.pending-info-details summary::-webkit-details-marker{display:none;}
.pending-info-details summary::before{content:'▸ ';color:var(--accent-light);}
.pending-info-details[open] summary::before{content:'▾ ';}

/* =========================================================
   Registro documental (normas / certificados / evaluación)
   ========================================================= */
.doc-registry-block{margin-top:32px;}
.doc-registry-block h4{font-size:15px;font-weight:800;color:#fff;margin-bottom:14px;}
.doc-registry-details{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:16px 20px;margin-top:16px;
}
.doc-registry-details summary{
  cursor:pointer;font-size:15px;font-weight:800;color:#fff;list-style:none;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.doc-registry-details summary::-webkit-details-marker{display:none;}
.doc-registry-details summary::before{content:'▸ ';color:var(--accent-light);}
.doc-registry-details[open] summary::before{content:'▾ ';}
.doc-registry-details .doc-table-wrap{margin-top:16px;}
.doc-registry-summary-count{font-size:11.5px;font-weight:700;color:var(--ink-faint);text-transform:none;}
.doc-table-wrap{margin-top:0;}
table.doc-table{font-size:12.5px;}
table.doc-table td{vertical-align:top;}
.doc-kind{font-size:10px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);font-weight:700;}
.doc-status{
  display:inline-block;font-size:11px;font-weight:700;padding:4px 9px;border-radius:100px;white-space:nowrap;
}
.doc-status-pending{background:rgba(255,255,255,.06);color:var(--ink-faint);border:1px solid var(--border-soft);}
.doc-status-received{background:rgba(80,100,214,.14);color:#c3cbff;border:1px solid rgba(80,100,214,.3);}
.doc-status-validated{background:rgba(63,184,143,.14);color:var(--ok);border:1px solid rgba(63,184,143,.35);}

/* Botón de copia en estado de fallo (fallback manual) */
.btn-copy-fail{background:rgba(242,169,59,.16) !important;border-color:rgba(242,169,59,.4) !important;color:var(--accent-light) !important;}

/* Mensaje de error del formulario de requerimiento (descripción obligatoria) */
.req-form-error{
  display:none;margin-top:16px;font-size:12.5px;color:#ffb4b4;
  background:rgba(220,60,60,.1);border:1px solid rgba(220,60,60,.35);
  padding:10px 14px;border-radius:8px;
}

/* =========================================================
   Producto / referencia seleccionada (bloque de solo lectura
   sobre el formulario de requerimiento) + banner de "datos
   modificados" + botón de copia deshabilitado
   ========================================================= */
.selected-product-box{margin-top:20px;}
.selected-product-empty{
  display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-faint);
  background:rgba(255,255,255,.03);border:1px dashed var(--border-soft);
  padding:12px 14px;border-radius:10px;
}
.selected-product-empty i{color:var(--accent-light);flex-shrink:0;}
.selected-product-head{
  display:flex;align-items:center;gap:8px;font-size:11.5px;font-weight:800;
  text-transform:uppercase;letter-spacing:.04em;color:var(--accent-light);margin-bottom:10px;
}
.selected-product-box{
  background:var(--surface);border:1px solid rgba(80,100,214,.35);border-radius:var(--radius-md);
  padding:16px 18px;
}
.selected-product-rows{display:flex;flex-direction:column;gap:6px;}
.sp-row{display:flex;justify-content:space-between;gap:12px;font-size:13px;flex-wrap:wrap;}
.sp-k{color:var(--ink-faint);font-weight:600;}
.sp-v{color:#fff;font-weight:700;text-align:right;}
.selected-product-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;}
.clear-selection-btn{margin-top:12px;}

/* Selector de variante dentro de una ficha de producto */
.ficha-field-wrap-inline{margin-top:4px;}
.variant-select-label{display:block;font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-faint);font-weight:700;margin-bottom:6px;}
.ficha-badge-confirmed{background:rgba(63,184,143,.12);border-color:rgba(63,184,143,.35);color:var(--ok);}
.ficha-product-name{font-size:16px;}
.catalog-empty-state-products{margin-top:20px;margin-bottom:8px;}

/* Aviso "Datos modificados: genere nuevamente el resumen" */
.req-stale-banner{
  display:none;align-items:center;gap:10px;margin-bottom:14px;font-size:12.5px;font-weight:700;
  color:var(--accent-light);background:rgba(242,169,59,.1);border:1px solid rgba(242,169,59,.3);
  padding:10px 14px;border-radius:8px;
}
.req-stale-banner i{flex-shrink:0;}

/* Botón "Copiar resumen" deshabilitado mientras el resumen está desactualizado */
.btn-disabled, .btn:disabled{
  opacity:.45;cursor:not-allowed;pointer-events:none;
}