/* =========================================================
   ALB-KEV · CONSTRUCCIONES & MANTENCIONES
   Sistema de diseño
   Paleta: marino profundo + aqua de piscina + coral de bordes/CTA
   Tipografía: Big Shoulders Display (industrial/condensada, evoca
   estructura y grúas) + IBM Plex Sans (cuerpo) + IBM Plex Mono
   (medidas y precios, referencia directa a las fichas técnicas)
   ========================================================= */

:root{
  /* ---- Color: marca real ALB-KEV, sin degradados morados/azules genéricos ---- */
  --navy-950:#061626;
  --navy-900:#0A2A45;
  --navy-800:#0F3B5F;
  --navy-700:#155078;
  --aqua-600:#0E93A3;
  --aqua-500:#17B4C4;
  --aqua-400:#4FD6DF;
  --aqua-100:#DFF7F6;
  --coral-600:#D62A56;
  --coral-500:#F23D68;
  --foam-050:#F8FBFA;
  --foam-100:#EFF5F3;
  --foam-200:#E2ECE9;
  --ink-900:#08161F;
  --ink-700:#1E3540;
  --line:rgba(8,22,31,.12);
  --line-inv:rgba(255,255,255,.16);

  /* ---- Tipografía ---- */
  --font-display:'Big Shoulders Display', 'Arial Narrow', sans-serif;
  --font-body:'IBM Plex Sans', 'Segoe UI', sans-serif;
  --font-mono:'IBM Plex Mono', 'Courier New', monospace;

  /* ---- Escala fluida ---- */
  --step-xs: clamp(.72rem, .68rem + .2vw, .8rem);
  --step-sm: clamp(.85rem, .8rem + .25vw, .95rem);
  --step-base: clamp(1rem, .95rem + .3vw, 1.125rem);
  --step-md: clamp(1.25rem, 1.1rem + .6vw, 1.6rem);
  --step-lg: clamp(1.8rem, 1.4rem + 1.6vw, 2.6rem);
  --step-xl: clamp(2.6rem, 1.9rem + 3vw, 4.4rem);
  --step-2xl: clamp(3.4rem, 2.3rem + 5vw, 6.6rem);

  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 28px;
  --container: 1240px;
  --shadow-soft: 0 20px 50px -25px rgba(6,22,38,.45);
  --shadow-hard: 10px 10px 0 var(--navy-900);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  font-family:var(--font-body);
  font-size:var(--step-base);
  color:var(--ink-900);
  background:var(--foam-050);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:.96;
  letter-spacing:.002em;
  margin:0 0 .4em;
  text-transform:uppercase;
}
p{margin:0 0 1em;}
.container{max-width:var(--container);margin:0 auto;padding:0 clamp(1.1rem,4vw,2.5rem);}
.eyebrow{
  font-family:var(--font-mono);
  font-size:var(--step-xs);
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--aqua-600);
  display:flex;align-items:center;gap:.6em;
  margin-bottom:.9em;
}
.eyebrow::before{content:'';width:22px;height:2px;background:var(--coral-500);display:inline-block;}

:focus-visible{outline:3px solid var(--coral-500);outline-offset:3px;}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  font-family:var(--font-display);
  font-weight:700;
  font-size:var(--step-sm);
  letter-spacing:.03em;
  text-transform:uppercase;
  text-decoration:none;
  padding:.95em 1.7em;
  border-radius:999px;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-coral{background:var(--coral-500);color:#fff;box-shadow:0 14px 30px -12px rgba(242,61,104,.65);}
.btn-coral:hover{background:var(--coral-600);}
.btn-outline{border-color:var(--line-inv);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.1);}
.btn-ink{border-color:var(--navy-900);color:var(--navy-900);}
.btn-ink:hover{background:var(--navy-900);color:#fff;}
.btn svg{width:1.1em;height:1.1em;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(248,251,250,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding-block:.65rem;}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;}
.brand img{height:44px;width:auto;}
.brand-word{font-family:var(--font-display);font-weight:800;font-size:1.15rem;color:var(--navy-900);letter-spacing:.01em;line-height:1;}
.brand-word small{display:block;font-family:var(--font-mono);font-size:.55rem;letter-spacing:.14em;color:var(--aqua-600);text-transform:uppercase;margin-top:.25em;}

nav.main-nav{display:flex;align-items:center;gap:2.1rem;}
nav.main-nav a{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink-700);
  position:relative;
  padding-bottom:.3em;
}
nav.main-nav a::after{content:'';position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--coral-500);transition:width .2s ease;}
nav.main-nav a:hover::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:1rem;}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:.4rem;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy-900);margin:5px 0;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:min(92vh,880px);
  display:flex;align-items:flex-end;
  overflow:hidden;
  background:var(--navy-950);
}
.hero-media{position:absolute;inset:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 35%;opacity:.62;}
.hero-media::after{
  content:'';position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(6,22,38,.35) 0%, rgba(6,22,38,.55) 45%, rgba(6,22,38,.96) 100%),
    linear-gradient(100deg, rgba(6,22,38,.9) 0%, rgba(6,22,38,.15) 42%, transparent 60%);
}
.hero-inner{position:relative;z-index:2;width:100%;padding-block:clamp(3rem,8vw,5.5rem);}
.hero-tag{
  font-family:var(--font-mono);color:var(--aqua-400);
  font-size:var(--step-xs);letter-spacing:.2em;text-transform:uppercase;
  display:flex;align-items:center;gap:.7em;margin-bottom:1.2rem;
}
.hero-tag::before{content:'';width:34px;height:2px;background:var(--coral-500);}
.hero h1{
  color:#fff;
  font-size:var(--step-2xl);
  max-width:14ch;
  text-shadow:0 8px 30px rgba(0,0,0,.25);
}
.hero h1 em{
  font-style:normal;
  color:var(--aqua-400);
}
.hero-sub{color:var(--foam-100);max-width:46ch;font-size:var(--step-md);opacity:.92;margin-bottom:2rem;font-weight:400;}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2.6rem;}
.hero-stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:1px;background:var(--line-inv);
  border:1px solid var(--line-inv);
  max-width:760px;border-radius:var(--radius-md);overflow:hidden;
}
.hero-stats div{background:rgba(6,22,38,.55);padding:1rem 1.2rem;}
.hero-stats strong{display:block;font-family:var(--font-display);font-size:1.7rem;color:var(--aqua-400);}
.hero-stats span{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.05em;color:var(--foam-100);text-transform:uppercase;opacity:.85;}

/* ---------- Banner beneficio: sin pago adelantado ---------- */
.advance-banner{
  background:var(--navy-900);
  color:#fff;
  padding-block:clamp(2.5rem,6vw,4rem);
  position:relative;
  overflow:hidden;
}
.advance-grid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:clamp(2rem,4vw,4rem);
  align-items:center;
}
.advance-headline{font-size:var(--step-lg);color:#fff;max-width:15ch;}
.advance-headline .hl{color:var(--coral-500);}
.advance-note{font-family:var(--font-mono);font-size:var(--step-xs);color:var(--aqua-100);opacity:.8;max-width:48ch;}
.advance-cards{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-inv);border:1px solid var(--line-inv);border-radius:var(--radius-md);overflow:hidden;}
.advance-cards div{background:rgba(255,255,255,.04);padding:1.4rem;}
.advance-cards strong{display:block;font-family:var(--font-mono);color:var(--aqua-400);font-size:var(--step-xs);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.5em;}
.advance-cards p{margin:0;font-size:var(--step-sm);color:var(--foam-100);}

@media (max-width:860px){ .advance-grid{grid-template-columns:1fr;} }

/* ---------- Secciones genéricas ---------- */
section{padding-block:clamp(3.4rem,7vw,6.5rem);}
.section-head{max-width:640px;margin-bottom:clamp(2rem,4vw,3.2rem);}
.section-head h2{font-size:var(--step-xl);color:var(--navy-900);}
.section-head p{color:var(--ink-700);font-size:var(--step-md);font-weight:400;max-width:52ch;}
.section-alt{background:var(--foam-100);}
.section-dark{background:var(--navy-950);color:var(--foam-050);}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:var(--foam-100);opacity:.85;}

/* ---------- Bento: Qué incluye (piscina / equipos / preparación) ---------- */
.bento-includes{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:1.1rem;
}
.bento-includes .card{grid-column:span 6;}
@media (min-width:800px){
  .bento-includes .card:nth-child(1){grid-column:span 3;}
  .bento-includes .card:nth-child(2){grid-column:span 2;}
  .bento-includes .card:nth-child(3){grid-column:span 4;}
}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:clamp(1.4rem,3vw,2.1rem);
}
.card h3{font-size:var(--step-lg);color:var(--navy-900);}
.card .tag{font-family:var(--font-mono);font-size:var(--step-xs);color:var(--coral-600);letter-spacing:.1em;text-transform:uppercase;margin-bottom:.8em;display:block;}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:.55rem;}
.check-list li{
  display:flex;gap:.6em;align-items:flex-start;
  font-size:var(--step-sm);color:var(--ink-700);
}
.check-list li::before{
  content:'';flex:0 0 auto;width:9px;height:9px;margin-top:.42em;
  background:var(--aqua-500);border-radius:2px;transform:rotate(45deg);
}
.card--dark{background:var(--navy-900);color:#fff;border-color:var(--navy-800);}
.card--dark h3{color:#fff;}
.card--dark .check-list li{color:var(--foam-100);}
.card--dark .check-list li::before{background:var(--coral-500);}

/* ---------- Blueprint / firma visual animada ---------- */
.blueprint{
  position:relative;
  background:var(--navy-950);
  padding-block:clamp(3rem,7vw,5rem);
  overflow:hidden;
}
.blueprint-grid-bg{
  position:absolute;inset:0;opacity:.16;
  background-image:
    linear-gradient(var(--aqua-500) 1px, transparent 1px),
    linear-gradient(90deg, var(--aqua-500) 1px, transparent 1px);
  background-size:34px 34px;
  mask-image:radial-gradient(ellipse at center, black 40%, transparent 80%);
}
.blueprint-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center;}
.blueprint svg{width:100%;height:auto;}
.blueprint-copy .eyebrow{color:var(--aqua-400);}
.blueprint-copy h2{color:#fff;font-size:var(--step-xl);}
.blueprint-copy p{color:var(--foam-100);opacity:.85;font-size:var(--step-md);font-weight:400;max-width:44ch;}
.blueprint-measure{font-family:var(--font-mono);fill:var(--aqua-300, #7fe3ea);font-size:11px;letter-spacing:.05em;}
.blueprint-dash{stroke:var(--aqua-500);stroke-width:1;stroke-dasharray:4 4;fill:none;opacity:.7;}
.blueprint-shell{stroke:#fff;stroke-width:2;fill:none;}
.blueprint-water{fill:var(--aqua-500);opacity:.55;transform-origin:bottom;transform:scaleY(0);transition:transform 1.4s cubic-bezier(.2,.8,.2,1);}
.blueprint.is-visible .blueprint-water{transform:scaleY(1);}
@media (max-width:860px){ .blueprint-inner{grid-template-columns:1fr;} }

/* ---------- Catálogo por categorías ---------- */
.cat-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:1.4rem;
}
.cat-card{
  grid-column:span 12;
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:420px;
  display:flex;flex-direction:column;justify-content:flex-end;
  color:#fff;
  isolation:isolate;
}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .6s ease;}
.cat-card:hover img{transform:scale(1.05);}
.cat-card::before{
  content:'';position:absolute;inset:0;z-index:-1;
  background:linear-gradient(0deg, rgba(6,22,38,.94) 0%, rgba(6,22,38,.5) 55%, rgba(6,22,38,.1) 100%);
}
.cat-card .body{padding:clamp(1.4rem,3vw,2.2rem);}
.cat-num{font-family:var(--font-mono);font-size:var(--step-xs);letter-spacing:.16em;color:var(--aqua-400);text-transform:uppercase;}
.cat-card h3{font-size:var(--step-lg);margin-bottom:.2em;}
.cat-range{font-family:var(--font-mono);font-size:var(--step-sm);color:var(--foam-100);opacity:.85;margin-bottom:.8em;}
.cat-price{font-family:var(--font-display);font-size:var(--step-md);color:var(--aqua-400);margin-bottom:1em;}
.cat-price span{font-family:var(--font-mono);font-size:.62em;color:var(--foam-100);text-transform:uppercase;letter-spacing:.08em;display:block;opacity:.75;}

@media (min-width:760px){
  .cat-grid .cat-card:nth-child(1){grid-column:span 7;}
  .cat-grid .cat-card:nth-child(2){grid-column:span 5;}
  .cat-grid .cat-card:nth-child(3){grid-column:span 5;}
  .cat-grid .cat-card:nth-child(4){grid-column:span 7;}
}

.catalog-cta{margin-top:2.4rem;display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-md);padding:1.6rem 1.8rem;}
.catalog-cta p{margin:0;font-size:var(--step-sm);color:var(--ink-700);max-width:44ch;}

/* ---------- Proceso ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;}
.process-step{background:#fff;padding:2rem 1.6rem;position:relative;}
.process-step .n{font-family:var(--font-display);font-size:2.6rem;color:var(--aqua-100);-webkit-text-stroke:1.5px var(--aqua-500);color:transparent;display:block;margin-bottom:.3em;}
.process-step h4{font-size:var(--step-md);color:var(--navy-900);margin-bottom:.35em;}
.process-step p{font-size:var(--step-sm);color:var(--ink-700);margin:0;}
@media (max-width:820px){ .process{grid-template-columns:1fr 1fr;} }
@media (max-width:520px){ .process{grid-template-columns:1fr;} }

/* ---------- Portafolio ---------- */
.portfolio-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  grid-auto-rows:190px;
  gap:1rem;
}
.p-item{position:relative;border-radius:var(--radius-md);overflow:hidden;grid-column:span 6;grid-row:span 1;}
.p-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.p-item:hover img{transform:scale(1.06);}
.p-item .cap{
  position:absolute;left:0;right:0;bottom:0;padding:.9rem 1.1rem;
  background:linear-gradient(0deg, rgba(6,22,38,.88), transparent);
  color:#fff;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;text-transform:uppercase;
}
@media (min-width:700px){
  .p-item{grid-column:span 2;grid-row:span 1;}
  .p-item.tall{grid-row:span 2;}
  .p-item.wide{grid-column:span 4;}
}

/* ---------- Trabajos diarios (CMS) ---------- */
.feed-wrap{
  background:var(--navy-950);
  color:#fff;
}
.feed-head{display:flex;flex-wrap:wrap;gap:1.5rem;align-items:flex-end;justify-content:space-between;margin-bottom:2.2rem;}
.feed-badge{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  background:rgba(79,214,223,.12);border:1px solid rgba(79,214,223,.4);color:var(--aqua-400);
  padding:.5em 1em;border-radius:999px;
}
.feed-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--aqua-400);animation:pulse 1.8s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}
.feed-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.3rem;}
.feed-card{background:rgba(255,255,255,.04);border:1px solid var(--line-inv);border-radius:var(--radius-md);overflow:hidden;}
.feed-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.feed-card .body{padding:1.1rem 1.2rem 1.3rem;}
.feed-date{font-family:var(--font-mono);font-size:.68rem;color:var(--aqua-400);letter-spacing:.06em;text-transform:uppercase;}
.feed-card h4{font-size:var(--step-md);margin:.3em 0 .3em;color:#fff;}
.feed-card p{font-size:var(--step-sm);color:var(--foam-100);opacity:.85;margin:0;}
.feed-empty{grid-column:1/-1;padding:2.5rem;text-align:center;border:1px dashed var(--line-inv);border-radius:var(--radius-md);color:var(--foam-100);opacity:.7;font-family:var(--font-mono);font-size:var(--step-sm);}

/* ---------- Confianza: garantía / pagos ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;}
@media (max-width:820px){ .trust-grid{grid-template-columns:1fr;} }
.trust-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:1.8rem;}
.trust-card .num{font-family:var(--font-mono);font-size:2rem;color:var(--coral-500);display:block;margin-bottom:.2em;}
.trust-card h4{font-size:var(--step-md);color:var(--navy-900);margin-bottom:.4em;}
.trust-card p{font-size:var(--step-sm);color:var(--ink-700);margin:0;}

/* ---------- Equipo ---------- */
.team-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,4vw,3.5rem);align-items:center;}
.team-wrap img{border-radius:var(--radius-lg);box-shadow:var(--shadow-soft);}
@media (max-width:860px){ .team-wrap{grid-template-columns:1fr;} }

/* ---------- CTA final ---------- */
.final-cta{
  background:var(--coral-500);
  color:#fff;
  text-align:center;
  padding-block:clamp(3.5rem,8vw,6rem);
}
.final-cta h2{color:#fff;font-size:var(--step-xl);max-width:18ch;margin-inline:auto;}
.final-cta p{color:rgba(255,255,255,.9);font-size:var(--step-md);font-weight:400;max-width:46ch;margin:0 auto 2rem;}
.final-cta .btn-ink{background:var(--navy-950);color:#fff;border-color:var(--navy-950);}
.final-cta .btn-ink:hover{background:#fff;color:var(--navy-950);}

/* ---------- Footer ---------- */
footer.site-footer{background:var(--navy-950);color:var(--foam-100);padding-block:3.5rem 2rem;}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2.5rem;}
@media (max-width:760px){ .footer-grid{grid-template-columns:1fr;} }
.footer-grid h5{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--aqua-400);margin:0 0 1em;}
.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:.6rem;font-size:var(--step-sm);}
.footer-grid a{text-decoration:none;color:var(--foam-100);opacity:.85;}
.footer-grid a:hover{opacity:1;text-decoration:underline;}
.footer-bottom{margin-top:3rem;padding-top:1.6rem;border-top:1px solid var(--line-inv);display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;font-family:var(--font-mono);font-size:.7rem;opacity:.6;}

/* ---------- WhatsApp flotante ---------- */
.wa-float{
  position:fixed;right:1.3rem;bottom:1.3rem;z-index:200;
  width:60px;height:60px;border-radius:50%;
  background:var(--coral-500);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 16px 34px -12px rgba(242,61,104,.7);
  text-decoration:none;
  animation:float-bob 3s ease-in-out infinite;
}
.wa-float svg{width:28px;height:28px;}
@keyframes float-bob{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease, transform .7s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ---------- Responsive nav ---------- */
@media (max-width:900px){
  nav.main-nav{
    position:fixed;inset:64px 0 0 0;background:var(--foam-050);
    flex-direction:column;align-items:flex-start;gap:0;
    padding:1.5rem clamp(1.1rem,4vw,2.5rem);
    transform:translateX(100%);transition:transform .3s ease;
  }
  nav.main-nav.open{transform:translateX(0);}
  nav.main-nav a{width:100%;padding-block:.9rem;border-bottom:1px solid var(--line);font-size:1rem;}
  .nav-cta .btn-outline{display:none;}
  .nav-toggle{display:block;}
}