/* ============================================================================
 * AquaSed · Purificación de agua — Club Natura Lufada
 * Landing de captación. Estática, sin dependencias.
 * Fondos por orden (regla: dos secciones seguidas nunca con el mismo fondo):
 * hero oscuro → franja azul → claro → oscuro → blanco → claro → blanco →
 * oscuro → claro → blanco → oscuro (contacto) → claro (preguntas) → pie tinta
 * ========================================================================= */

:root {
  --ink: #03101a;
  --abyss: #061d2d;
  --deep: #0a2c44;
  --navy: #0c4278;
  --blue: #1968a3;
  --sky: #3d9bd1;
  --aqua: #8fd8f0;
  --foam: #dff3fa;
  --leaf: #4c9a4f;
  --paper: #f2f7fa;
  --white: #ffffff;
  --text: #0b2236;
  --muted: #557086;
  --line: rgba(12, 66, 120, 0.12);
  --serif: 'Fraunces', 'Times New Roman', serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --radius: 22px;
  --w: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--text);
  font-family: var(--sans); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--aqua); color: var(--ink); }

.wrap { width: 100%; max-width: var(--w); margin: 0 auto; padding: 0 28px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Tipografía ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12.5px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase;
  color: var(--blue);
}
.eyebrow::before { content: ''; width: 26px; height: 1px; background: currentColor; opacity: .7; }
.on-dark .eyebrow { color: var(--aqua); }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -.02em; line-height: 1.04; margin: 0; font-variation-settings: 'SOFT' 50, 'WONK' 0; }
h2 { font-size: clamp(36px, 5.2vw, 68px); }
h2 em, h1 em { font-style: italic; color: var(--sky); font-variation-settings: 'SOFT' 100, 'WONK' 1; }
.on-dark h2 em, .on-dark h1 em { color: var(--aqua); }
.lead { font-size: clamp(17px, 1.5vw, 20px); color: var(--muted); max-width: 620px; }
.on-dark { color: #e8f4fa; }
.on-dark .lead { color: rgba(232, 244, 250, .72); }

/* ---------- Botones ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 54px; padding: 0 28px; border-radius: 999px; border: 0; cursor: pointer;
  font-size: 15.5px; font-weight: 600; letter-spacing: .01em; text-decoration: none;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), background .3s, color .3s;
  isolation: isolate; overflow: hidden; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex: none; transition: transform .5s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn-primary { background: linear-gradient(135deg, #2b8fd0, var(--navy)); color: #fff; box-shadow: 0 10px 30px -10px rgba(25, 104, 163, .7), inset 0 1px 0 rgba(255,255,255,.25); }
.btn-primary::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform 1s var(--ease);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -12px rgba(25, 104, 163, .85); }
.btn-primary:hover::after { transform: translateX(120%); }
.btn-ghost { background: rgba(255,255,255,.06); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.28); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.btn-ghost:hover { background: rgba(255,255,255,.14); transform: translateY(-2px); }
.btn-line { background: transparent; color: var(--navy); box-shadow: inset 0 0 0 1.5px var(--navy); }
.btn-line:hover { background: var(--navy); color: #fff; }
.btn-wa { background: #1fa855; color: #fff; }
.btn-wa:hover { transform: translateY(-2px); background: #19914a; }

/* ---------- Cabecera ---------- */
.hdr {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  transition: background .5s var(--ease), box-shadow .5s var(--ease), padding .5s var(--ease);
  padding: 18px 0;
}
.hdr .wrap { display: flex; align-items: center; gap: 28px; }
.hdr-logo { display: block; position: relative; width: 196px; height: 41px; flex: none; }
.hdr-logo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; transition: opacity .4s; }
.hdr-logo .l-oscuro { opacity: 0; }
.hdr nav { display: flex; gap: 30px; margin-left: auto; }
.hdr nav a { color: rgba(255,255,255,.82); text-decoration: none; font-size: 14.5px; font-weight: 500; position: relative; padding: 6px 0; }
.hdr nav a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease); }
.hdr nav a:hover::after { transform: scaleX(1); }
.hdr-tel { color: #fff; text-decoration: none; font-weight: 600; font-size: 14.5px; display: inline-flex; align-items: center; gap: 8px; }
.hdr-tel svg { width: 16px; height: 16px; }
.hdr .btn { min-height: 44px; padding: 0 20px; font-size: 14px; }
.hdr.solido { background: rgba(255,255,255,.86); backdrop-filter: saturate(1.6) blur(18px); -webkit-backdrop-filter: saturate(1.6) blur(18px); box-shadow: 0 1px 0 var(--line), 0 12px 30px -20px rgba(6,29,45,.35); padding: 10px 0; }
.hdr.solido .l-claro { opacity: 0; }
.hdr.solido .l-oscuro { opacity: 1; }
.hdr.solido nav a { color: var(--text); }
.hdr.solido .hdr-tel { color: var(--navy); }

/* ---------- HERO ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  background: radial-gradient(120% 90% at 30% 0%, #0f3b5f 0%, #061d2d 55%, #03101a 100%);
  color: #fff; overflow: hidden; isolation: isolate; padding: 130px 0 110px;
}
.hero::after { /* velo inferior para fundir con la franja */
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 32%; z-index: -1; pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgba(3,16,26,.85));
}
.hero .wrap { display: grid; grid-template-columns: 1.08fr .92fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(54px, 7.1vw, 106px); line-height: .96; margin: 22px 0 26px; }
@media (min-width: 901px) { .hero h1 .ln { white-space: nowrap; } }
.hero h1 .ln { display: block; overflow: hidden; padding: 0 .08em .18em 0; margin-bottom: -.12em; }
.hero h1 .ln > span { display: inline-block; transform: translateY(105%); transition: transform 1.4s var(--ease); }
.listo .hero h1 .ln > span { transform: none; }
.listo .hero h1 .ln:nth-child(2) > span { transition-delay: .12s; }
.hero .lead { margin: 0 0 36px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-sellos { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 40px; padding: 0; list-style: none; font-size: 14px; color: rgba(232,244,250,.78); }
.hero-sellos li { display: inline-flex; align-items: center; gap: 9px; }
.hero-sellos svg { width: 18px; height: 18px; color: var(--aqua); flex: none; }
.aparece { opacity: 0; transform: translateY(18px); transition: opacity 1.2s var(--ease), transform 1.2s var(--ease); }
.listo .aparece { opacity: 1; transform: none; }
.listo .aparece.d1 { transition-delay: .35s; } .listo .aparece.d2 { transition-delay: .5s; } .listo .aparece.d3 { transition-delay: .65s; } .listo .aparece.d4 { transition-delay: .8s; }

/* Cocina de fondo (Nano Banana Pro, 06/10/2026) con acercamiento lento */
.hero-fondo { position: absolute; inset: 0; z-index: -2; overflow: hidden; background: #050d14; }
.hero-escena { position: absolute; inset: 0; transform-origin: 64% 62%; animation: acerca 28s ease-in-out infinite alternate; will-change: transform; }
.hero-foto { width: 100%; height: 100%; object-fit: cover; object-position: 62% 50%; }
.hero-escena::after { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(90deg, rgba(3,12,20,.90) 0%, rgba(3,12,20,.66) 30%, rgba(3,12,20,.16) 56%, rgba(3,12,20,0) 74%),
              radial-gradient(120% 100% at 70% 40%, transparent 55%, rgba(3,12,20,.45) 100%); }
.hero .wrap { pointer-events: none; }
.hero .wrap > * { pointer-events: auto; }
@keyframes acerca { from { transform: scale(1); } to { transform: scale(1.07); } }

.hero-etiqueta {
  display: block; padding: 12px 16px; border-radius: 16px; white-space: nowrap;
  background: rgba(6,29,45,.5); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.16), 0 12px 30px -12px rgba(0,0,0,.6); font-size: 13px; line-height: 1.35;
}
.hero-etiqueta b { display: block; font-family: var(--serif); font-weight: 500; font-size: 19px; letter-spacing: -.01em; }
.hero-etiqueta span { display: block; color: var(--aqua); }
/* Punto que señala el equipo dentro de la foto */
.hero-punto { position: absolute; left: 0; top: 0; z-index: 2; display: flex; align-items: center; gap: 14px; color: #fff; text-decoration: none; transform: translate(-13px, -13px); opacity: 0; transition: opacity 1s ease .9s; }
.hero-punto.colocado { opacity: 1; }
.hero-punto.fuera { display: none; }
.hero-punto-dot { position: relative; flex: none; width: 26px; height: 26px; border-radius: 50%; background: rgba(143,216,240,.28); box-shadow: inset 0 0 0 2px #fff; animation: pulso 2.4s ease-out infinite; }
.hero-punto-dot::after { content: ''; position: absolute; inset: 8px; border-radius: 50%; background: #fff; }
@keyframes pulso { 0% { box-shadow: inset 0 0 0 2px #fff, 0 0 0 0 rgba(143,216,240,.6); } 100% { box-shadow: inset 0 0 0 2px #fff, 0 0 0 20px rgba(143,216,240,0); } }
.hero-punto .hero-etiqueta { position: static; transition: background .3s, transform .5s var(--ease); }
.hero-punto:hover .hero-etiqueta { background: rgba(6,29,45,.75); transform: translateX(4px); }
.hero-punto.izq { flex-direction: row-reverse; transform: translate(calc(-100% + 13px), -13px); }
.hero-punto.izq:hover .hero-etiqueta { transform: translateX(-4px); }

.hero-scroll { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); width: 26px; height: 42px; border-radius: 14px; box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.4); }
.hero-scroll::after { content: ''; position: absolute; left: 50%; top: 9px; width: 3px; height: 8px; border-radius: 2px; background: #fff; transform: translateX(-50%); animation: rueda 2.2s ease-in-out infinite; }

@keyframes rueda { 0% { opacity: 0; transform: translate(-50%, 0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, 12px); } }

/* ---------- Franja de líneas ---------- */
.franja { background: var(--navy); color: #fff; overflow: hidden; padding: 22px 0; position: relative; }
.franja-pista { display: flex; width: max-content; animation: desliza 42s linear infinite; }
.franja span { font-family: var(--serif); font-style: italic; font-size: clamp(22px, 2.4vw, 32px); padding: 0 34px; white-space: nowrap; display: inline-flex; align-items: center; gap: 34px; }
.franja span::after { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--aqua); box-shadow: 0 0 14px var(--aqua); }
@keyframes desliza { to { transform: translateX(-50%); } }

/* ---------- Secciones genéricas ---------- */
.sec { position: relative; padding: clamp(84px, 10vw, 150px) 0; }
.sec-claro { background: var(--paper); }
.sec-blanco { background: var(--white); }
.sec-oscuro { background: var(--abyss); color: #e8f4fa; }
.sec-cab { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: end; margin-bottom: clamp(44px, 6vw, 72px); }
.sec-cab h2 { margin-top: 18px; }
.sec-cab .lead { margin: 0; }

/* Revelado al hacer scroll */
.rv { opacity: 0; transform: translateY(34px); filter: blur(6px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease), filter 1.1s var(--ease); }
.rv.in { opacity: 1; transform: none; filter: none; }
.rv[data-d="1"] { transition-delay: .1s; } .rv[data-d="2"] { transition-delay: .2s; } .rv[data-d="3"] { transition-delay: .3s; } .rv[data-d="4"] { transition-delay: .4s; }

/* ---------- El día a día + calculadora ---------- */
.dia { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 90px); align-items: center; }
.dia-foto { position: relative; border-radius: 28px; overflow: hidden; aspect-ratio: 4 / 5; box-shadow: 0 40px 80px -40px rgba(6,29,45,.55); }
.dia-foto img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.12); transition: transform 1.6s var(--ease); }
.dia-foto.in img { transform: scale(1.02); }
.dia-foto figcaption { position: absolute; left: 18px; bottom: 18px; right: 18px; padding: 14px 18px; border-radius: 16px; background: rgba(255,255,255,.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); font-size: 14px; color: var(--text); }
.dia h2 { margin: 18px 0 22px; }
.calc { margin-top: 34px; padding: 30px; border-radius: var(--radius); background: var(--white); box-shadow: 0 1px 0 var(--line), 0 30px 60px -40px rgba(6,29,45,.4); }
.calc-fila { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 14px; }
.calc label { font-weight: 600; font-size: 15px; }
.calc output { font-family: var(--serif); font-size: 26px; color: var(--navy); }
.calc input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 6px; background: linear-gradient(90deg, var(--sky) var(--p, 30%), #dbe7ef var(--p, 30%)); outline: none; margin: 4px 0 22px; }
.calc input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 26px; height: 26px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 6px rgba(61,155,209,.25), 0 4px 12px rgba(6,29,45,.3); cursor: grab; }
.calc input[type=range]::-moz-range-thumb { width: 26px; height: 26px; border-radius: 50%; background: #fff; border: 0; box-shadow: 0 0 0 6px rgba(61,155,209,.25), 0 4px 12px rgba(6,29,45,.3); cursor: grab; }
.calc-litros { display: flex; gap: 8px; margin-bottom: 24px; }
.calc-litros button { flex: 1; min-height: 46px; border-radius: 12px; border: 1.5px solid var(--line); background: var(--paper); cursor: pointer; font-weight: 600; transition: all .3s; }
.calc-litros button[aria-pressed="true"] { border-color: var(--blue); background: var(--foam); color: var(--navy); }
.calc-res { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.calc-res div { padding: 18px 14px; border-radius: 16px; background: linear-gradient(160deg, var(--abyss), var(--deep)); color: #fff; }
.calc-res b { display: block; font-family: var(--serif); font-weight: 400; font-size: clamp(28px, 3vw, 40px); line-height: 1; color: var(--aqua); font-variant-numeric: tabular-nums; }
.calc-res span { font-size: 13px; color: rgba(232,244,250,.75); line-height: 1.3; display: block; margin-top: 8px; }
.calc small { display: block; margin-top: 14px; color: var(--muted); font-size: 13px; }

/* ---------- Cómo funciona ---------- */
.como { overflow: hidden; }
.como-fondo { position: absolute; inset: 0; z-index: 0; }
.como-fondo img { width: 100%; height: 100%; object-fit: cover; opacity: .22; filter: saturate(.7); }
.como-fondo::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, var(--abyss) 0%, rgba(6,29,45,.75) 40%, var(--abyss) 100%); }
.como .wrap { position: relative; z-index: 1; }
.tuberia { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 20px; }
.tuberia svg.flujo { position: absolute; left: 6%; right: 6%; top: 44px; width: 88%; height: 20px; overflow: visible; z-index: 0; }
.flujo .base { stroke: rgba(143,216,240,.18); stroke-width: 2; fill: none; }
.flujo .agua { stroke: url(#gFlujo); stroke-width: 3; fill: none; stroke-dasharray: 10 18; animation: fluye 1.6s linear infinite; }
@keyframes fluye { to { stroke-dashoffset: -28; } }
.paso { position: relative; z-index: 1; padding: 0 6px; }
.paso-ico { width: 88px; height: 88px; border-radius: 50%; display: grid; place-items: center; margin-bottom: 26px; background: radial-gradient(circle at 35% 30%, rgba(143,216,240,.22), rgba(6,29,45,.9)); box-shadow: inset 0 0 0 1px rgba(143,216,240,.35), 0 0 0 10px rgba(6,29,45,1), 0 0 40px rgba(61,155,209,.25); position: relative; }
.paso-ico svg { width: 34px; height: 34px; color: var(--aqua); }
.paso-ico::after { content: ''; position: absolute; inset: -6px; border-radius: 50%; border: 1px solid rgba(143,216,240,.5); opacity: 0; animation: late 4s ease-out infinite; animation-delay: calc(var(--i) * 1s); }
@keyframes late { 0% { transform: scale(.85); opacity: .9; } 60%,100% { transform: scale(1.35); opacity: 0; } }
.paso small { font-size: 12.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--aqua); font-weight: 600; }
.paso h3 { font-size: 27px; margin: 10px 0 10px; color: #fff; }
.paso p { margin: 0; color: rgba(232,244,250,.7); font-size: 15.5px; }
.como-nota { margin-top: 56px; padding: 22px 26px; border-radius: 18px; background: rgba(255,255,255,.05); box-shadow: inset 0 0 0 1px rgba(255,255,255,.1); color: rgba(232,244,250,.75); font-size: 15px; display: flex; gap: 14px; align-items: center; }
.como-nota svg { width: 22px; height: 22px; color: var(--aqua); flex: none; }

/* ---------- Tres formas ---------- */
.formas { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 20px; }
.forma {
  position: relative; border-radius: 28px; overflow: hidden; min-height: 560px; padding: 34px;
  display: flex; flex-direction: column; justify-content: flex-end; isolation: isolate;
  background: linear-gradient(170deg, #eaf4fa 0%, #d2e6f1 100%); color: var(--text);
  transition: transform .8s var(--ease), box-shadow .8s var(--ease);
}
.forma:hover { transform: translateY(-8px); box-shadow: 0 40px 70px -40px rgba(6,29,45,.55); }
.forma.f1 { background: radial-gradient(120% 80% at 70% 10%, #1b5a8c 0%, #0a2c44 55%, #061d2d 100%); color: #fff; }
.forma .fimg { position: absolute; left: 50%; top: 30px; transform: translateX(-50%); height: 50%; width: auto; max-width: 86%; object-fit: contain; z-index: -1; transition: transform 1s var(--ease); filter: drop-shadow(0 30px 30px rgba(6,29,45,.35)); }
.forma.f1 .fimg { top: 28px; height: 56%; filter: drop-shadow(0 40px 40px rgba(0,0,0,.55)); }
.forma:hover .fimg { transform: translateX(-50%) translateY(-10px) scale(1.03); }
.forma .fimg.foto { left: 0; top: 0; transform: none; width: 100%; height: 58%; max-width: none; object-fit: cover; filter: none; -webkit-mask-image: linear-gradient(to bottom, #000 60%, transparent); mask-image: linear-gradient(to bottom, #000 60%, transparent); }
.forma:hover .fimg.foto { transform: scale(1.04); }
.forma small { font-size: 12.5px; letter-spacing: .2em; text-transform: uppercase; font-weight: 600; color: var(--blue); }
.forma.f1 small { color: var(--aqua); }
.forma h3 { font-size: clamp(28px, 2.6vw, 36px); margin: 10px 0 10px; }
.forma p { margin: 0 0 18px; font-size: 15.5px; color: var(--muted); }
.forma.f1 p { color: rgba(232,244,250,.72); }
.forma a.mas { font-weight: 600; font-size: 15px; text-decoration: none; display: inline-flex; gap: 8px; align-items: center; color: var(--navy); }
.forma.f1 a.mas { color: #fff; }
.forma a.mas svg { width: 16px; height: 16px; transition: transform .5s var(--ease); }
.forma a.mas:hover svg { transform: translateX(4px); }

/* ---------- Equipos ---------- */
.filtros { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.filtros button { min-height: 44px; padding: 0 20px; border-radius: 999px; border: 1.5px solid var(--line); background: var(--white); cursor: pointer; font-weight: 600; font-size: 14.5px; color: var(--muted); transition: all .35s var(--ease); }
.filtros button:hover { color: var(--navy); border-color: rgba(12,66,120,.35); }
.filtros button[aria-pressed="true"] { background: var(--navy); border-color: var(--navy); color: #fff; }
.filtros button sup { font-size: 11px; margin-left: 4px; opacity: .7; }
.rejilla { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.equipo {
  position: relative; background: var(--white); border-radius: 22px; padding: 14px 14px 20px; display: flex; flex-direction: column;
  box-shadow: 0 1px 0 var(--line), 0 20px 40px -34px rgba(6,29,45,.5);
  transition: transform .6s var(--ease), box-shadow .6s var(--ease), opacity .4s;
}
.equipo:hover { transform: translateY(-6px); box-shadow: 0 1px 0 var(--line), 0 34px 60px -34px rgba(6,29,45,.55); }
.equipo.oculto { display: none; }
.equipo-foto { border-radius: 16px; overflow: hidden; background: #fff; aspect-ratio: 1; position: relative; }
.equipo-foto img { width: 100%; height: 100%; object-fit: contain; transition: transform .9s var(--ease); }
.equipo:hover .equipo-foto img { transform: scale(1.06); }
.equipo-cat { display: inline-block; align-self: flex-start; margin: 16px 6px 8px; padding: 5px 10px; border-radius: 8px; background: var(--foam); color: var(--navy); font-size: 11.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.equipo h3 { font-family: var(--sans); font-weight: 700; letter-spacing: .01em; font-size: 17px; line-height: 1.25; margin: 0 6px 6px; }
.equipo p { margin: 0 6px 18px; font-size: 14.5px; color: var(--muted); line-height: 1.45; flex: 1; }
.equipo-acc { display: flex; gap: 8px; margin: 0 6px; }
.equipo-acc a, .equipo-acc button { flex: 1; min-height: 42px; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 13.5px; font-weight: 600; text-decoration: none; cursor: pointer; transition: all .3s; }
.equipo-acc a { border: 1.5px solid var(--line); color: var(--navy); background: transparent; }
.equipo-acc a:hover { border-color: var(--navy); }
.equipo-acc button { border: 0; background: var(--navy); color: #fff; }
.equipo-acc button:hover { background: var(--blue); }

/* ---------- Comparativa ---------- */
.tabla-env { overflow-x: auto; border-radius: 24px; box-shadow: 0 1px 0 var(--line), 0 30px 60px -44px rgba(6,29,45,.5); background: var(--white); }
.tabla { width: 100%; border-collapse: collapse; min-width: 720px; }
.tabla th, .tabla td { padding: 20px 24px; text-align: left; border-bottom: 1px solid var(--line); font-size: 15.5px; }
.tabla thead th { font-family: var(--serif); font-weight: 500; font-size: 21px; background: var(--paper); }
.tabla thead th.nos { background: var(--navy); color: #fff; position: relative; }
.tabla td.nos { background: rgba(223,243,250,.55); font-weight: 600; color: var(--navy); }
.tabla tbody tr:last-child td { border-bottom: 0; }
.tabla tbody th { font-weight: 600; color: var(--text); width: 30%; }
.si, .no { display: inline-flex; align-items: center; gap: 8px; }
.si svg { color: var(--leaf); } .no svg { color: #c2524b; }
.si svg, .no svg { width: 18px; height: 18px; flex: none; }

/* ---------- Por qué ---------- */
.porque { overflow: hidden; }
.porque-luz { position: absolute; width: 900px; height: 900px; border-radius: 50%; right: -300px; top: -300px; background: radial-gradient(circle, rgba(61,155,209,.22), transparent 60%); pointer-events: none; }
.motivos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; position: relative; }
.motivo { padding: 34px 28px 30px; border-radius: 24px; background: linear-gradient(170deg, rgba(255,255,255,.07), rgba(255,255,255,.02)); box-shadow: inset 0 0 0 1px rgba(255,255,255,.1); position: relative; overflow: hidden; transition: transform .7s var(--ease), box-shadow .7s var(--ease); }
.motivo::before { content: ''; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: linear-gradient(90deg, var(--aqua), transparent); transform: scaleX(0); transform-origin: left; transition: transform .8s var(--ease); }
.motivo:hover { transform: translateY(-6px); box-shadow: inset 0 0 0 1px rgba(143,216,240,.35); }
.motivo:hover::before { transform: scaleX(1); }
.motivo .num { position: absolute; right: 22px; top: 14px; font-family: var(--serif); font-size: 84px; line-height: 1; color: rgba(143,216,240,.09); }
.motivo svg { width: 30px; height: 30px; color: var(--aqua); margin-bottom: 26px; }
.motivo h3 { font-size: 26px; color: #fff; margin-bottom: 12px; }
.motivo p { margin: 0; color: rgba(232,244,250,.7); font-size: 15.5px; }

/* ---------- Proceso ---------- */
.proceso { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: p; position: relative; }
.proceso::before { content: ''; position: absolute; left: 0; right: 0; top: 23px; height: 1px; background: linear-gradient(90deg, var(--blue), var(--aqua)); transform: scaleX(var(--avance, 0)); transform-origin: left; transition: transform 1.8s var(--ease); }
.proceso.in { --avance: 1; }
.etapa { padding-right: 28px; position: relative; }
.etapa b { display: grid; place-items: center; width: 47px; height: 47px; border-radius: 50%; background: var(--white); box-shadow: inset 0 0 0 1.5px var(--blue); color: var(--navy); font-family: var(--serif); font-weight: 500; font-size: 20px; margin-bottom: 26px; position: relative; z-index: 1; }
.etapa h3 { font-size: 26px; margin-bottom: 10px; }
.etapa p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* ---------- Guías ---------- */
.guias { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.guia { text-decoration: none; display: flex; flex-direction: column; border-radius: 22px; overflow: hidden; background: var(--paper); transition: transform .6s var(--ease), box-shadow .6s var(--ease); }
.guia:hover { transform: translateY(-6px); box-shadow: 0 30px 60px -40px rgba(6,29,45,.5); }
.guia figure { margin: 0; aspect-ratio: 16 / 10; overflow: hidden; }
.guia img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.guia:hover img { transform: scale(1.06); }
.guia div { padding: 20px 22px 24px; }
.guia small { font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--blue); font-weight: 700; }
.guia h3 { font-family: var(--serif); font-size: 21px; line-height: 1.2; margin-top: 8px; color: var(--text); }

/* ---------- Contacto ---------- */
.contacto { overflow: hidden; isolation: isolate; background: var(--ink); color: #e8f4fa; }
.contacto canvas[data-agua] { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; opacity: 0; transition: opacity 2s ease; }
.contacto canvas.agua-lista { opacity: .9; }
.contacto::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(3,16,26,.82) 0%, rgba(3,16,26,.35) 60%, rgba(3,16,26,.6) 100%); }
.contacto .wrap { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(36px, 6vw, 90px); align-items: start; }
.contacto h2 { margin: 18px 0 22px; }
.contacto-lista { list-style: none; padding: 0; margin: 34px 0 0; display: grid; gap: 18px; }
.contacto-lista li { display: flex; gap: 16px; align-items: flex-start; }
.contacto-lista svg { width: 22px; height: 22px; color: var(--aqua); flex: none; margin-top: 3px; }
.contacto-lista b { display: block; color: #fff; }
.contacto-lista span { color: rgba(232,244,250,.68); font-size: 15px; }
.directo { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.directo .btn { min-height: 50px; }
.form {
  padding: clamp(26px, 3.4vw, 42px); border-radius: 28px; background: rgba(255,255,255,.97); color: var(--text);
  box-shadow: 0 50px 100px -40px rgba(0,0,0,.7), inset 0 0 0 1px rgba(255,255,255,.6);
}
.form h3 { font-size: 30px; margin-bottom: 6px; }
.form > p { margin: 0 0 24px; color: var(--muted); font-size: 15px; }
.campos { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.campo { display: flex; flex-direction: column; gap: 7px; }
.campo.ancho { grid-column: 1 / -1; }
.campo label { font-size: 13.5px; font-weight: 600; }
.campo label i { font-style: normal; font-weight: 400; color: var(--muted); }
.campo input, .campo select, .campo textarea {
  width: 100%; min-height: 52px; padding: 13px 16px; border-radius: 14px; border: 1.5px solid #d6e3ec; background: #f8fbfd;
  transition: border-color .25s, box-shadow .25s, background .25s; font-size: 16px; outline: none;
}
.campo textarea { min-height: 96px; resize: vertical; }
.campo select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230c4278' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 44px; }
.campo input:focus, .campo select:focus, .campo textarea:focus { border-color: var(--sky); background: #fff; box-shadow: 0 0 0 4px rgba(61,155,209,.15); }
.legal { margin-top: 18px; font-size: 13px; color: var(--muted); line-height: 1.5; }
.check { display: flex; gap: 12px; align-items: flex-start; font-size: 14px; margin-top: 18px; cursor: pointer; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--navy); flex: none; }
.check a { color: var(--navy); }
.form .btn { width: 100%; margin-top: 22px; min-height: 58px; font-size: 16px; }
.form-nota { margin-top: 14px; font-size: 13px; color: var(--muted); text-align: center; }
.trampa { position: absolute; left: -9999px; }

/* ---------- Preguntas ---------- */
.faq { max-width: 900px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 28px 56px 28px 0; position: relative; font-family: var(--serif); font-size: clamp(21px, 2.1vw, 27px); letter-spacing: -.01em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ''; position: absolute; right: 6px; top: 50%; width: 30px; height: 30px; margin-top: -15px; border-radius: 50%; box-shadow: inset 0 0 0 1.5px var(--blue); background: linear-gradient(var(--blue), var(--blue)) center / 12px 1.5px no-repeat, linear-gradient(var(--blue), var(--blue)) center / 1.5px 12px no-repeat; transition: transform .5s var(--ease), background-color .3s; }
.faq details[open] summary::after { transform: rotate(135deg); }
.faq .resp { padding: 0 56px 28px 0; color: var(--muted); font-size: 16.5px; }
.faq .resp a { color: var(--navy); font-weight: 600; }

/* ---------- Pie ---------- */
.pie { background: var(--ink); color: rgba(232,244,250,.7); padding: 80px 0 40px; font-size: 15px; }
.pie-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,.08); }
.pie img { width: 230px; height: auto; margin-bottom: 20px; }
.pie h4 { color: #fff; font-size: 13px; letter-spacing: .2em; text-transform: uppercase; margin: 6px 0 18px; }
.pie ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.pie a { text-decoration: none; color: rgba(232,244,250,.78); }
.pie a:hover { color: #fff; }
.pie-bot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; padding-top: 28px; font-size: 13.5px; }
.pie-bot a { color: var(--aqua); }

/* ---------- Barra móvil ---------- */
.barra { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .hdr nav { display: none; }
  .rejilla { grid-template-columns: repeat(3, 1fr); }
  .motivos { grid-template-columns: repeat(2, 1fr); }
  .guias { grid-template-columns: repeat(2, 1fr); }
  .formas { grid-template-columns: 1fr 1fr; }
  .forma.f1 { grid-column: 1 / -1; min-height: 520px; }
}
@media (max-width: 900px) {
  .hero .wrap, .dia, .contacto .wrap { grid-template-columns: 1fr; }
  .hero { padding: 108px 0 90px; text-align: left; }
  .tuberia { grid-template-columns: 1fr 1fr; row-gap: 46px; }
  .tuberia svg.flujo { display: none; }
  .proceso { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .proceso::before { display: none; }
  .sec-cab { grid-template-columns: 1fr; }
  .pie-top { grid-template-columns: 1fr 1fr; }
  .pie-top > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 767px) {
  body { font-size: 16px; padding-bottom: 72px; }
  .wrap { padding: 0 18px; }
  .hdr { padding: 12px 0; }
  .hdr .wrap { gap: 12px; }
  .hdr-logo { width: 150px; height: 32px; }
  .hdr-tel span { display: none; }
  .hdr .btn { display: none; }
  .hdr-tel { margin-left: auto; width: 44px; height: 44px; justify-content: center; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(255,255,255,.3); }
  .hdr.solido .hdr-tel { box-shadow: inset 0 0 0 1px var(--line); }
  .hero h1 { font-size: clamp(50px, 15vw, 72px); margin: 16px 0 18px; }
  .hero { display: block; min-height: 0; padding: 0 0 56px; }
  .hero-fondo { position: relative; z-index: 0; height: 64svh; min-height: 400px; max-height: 620px; }
  .hero-foto { object-position: 50% 50%; }
  .hero-escena::after { background: linear-gradient(180deg, rgba(3,12,20,.55) 0%, rgba(3,12,20,0) 22%, rgba(3,12,20,0) 55%, #050d14 100%); }
  .hero .wrap { position: relative; z-index: 1; margin-top: -96px; }
  .hero { background: #050d14; }
  .hero::after { display: none; }
  .hero-punto .hero-etiqueta { padding: 9px 12px; font-size: 12px; }
  .hero-punto .hero-etiqueta b { font-size: 16px; }
  .hero-ctas .btn { flex: 1 1 100%; }
  .hero-sellos { margin-top: 28px; gap: 10px 18px; font-size: 13.5px; }
  .hero-scroll { display: none; }
  .rejilla { grid-template-columns: 1fr 1fr; gap: 12px; }
  .equipo { padding: 10px 10px 14px; border-radius: 18px; }
  .equipo h3 { font-size: 15px; }
  .equipo p { font-size: 13.5px; margin-bottom: 12px; }
  .equipo-acc { flex-direction: column; }
  .equipo-cat { margin: 12px 4px 6px; font-size: 10.5px; }
  .formas { grid-template-columns: 1fr; }
  .forma { min-height: 480px; padding: 26px; }
  .motivos, .guias, .tuberia, .proceso { grid-template-columns: 1fr; }
  .calc { padding: 22px; }
  .calc-res { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .calc-res div { padding: 14px 10px; }
  .calc-res span { font-size: 12px; }
  .campos { grid-template-columns: 1fr; }
  .faq summary { padding-right: 48px; }
  .faq .resp { padding-right: 0; }
  .pie-top { grid-template-columns: 1fr; }
  .barra {
    display: grid; grid-template-columns: 1fr 1fr 1.4fr; gap: 8px; position: fixed; left: 10px; right: 10px; bottom: 10px; z-index: 60;
    padding: 8px; border-radius: 20px; background: rgba(3,16,26,.86); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,.5), inset 0 0 0 1px rgba(255,255,255,.1);
    transform: translateY(140%); transition: transform .6s var(--ease);
  }
  .barra.ver { transform: none; }
  .barra a { min-height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center; gap: 7px; text-decoration: none; font-weight: 600; font-size: 14px; color: #fff; background: rgba(255,255,255,.08); }
  .barra a svg { width: 17px; height: 17px; }
  .barra a.wa { background: #1fa855; }
  .barra a.pide { background: linear-gradient(135deg, #2b8fd0, var(--navy)); }
}