/* ============================================================
   Construcciones Estrupur — estilo industrial / hormigón
   ============================================================ */
:root{
  --paper:#f4f3ef;
  --paper-2:#eae7e0;
  --paper-3:#e0ddd4;
  --ink:#16181c;
  --night:#0e1014;
  --night-2:#181b21;
  --body:#34373d;
  --muted:#6c7077;
  --faint:#9a9ea4;
  --line:#d7d3c9;
  --line-dark:rgba(255,255,255,.12);

  --accent:#e3a019;          /* ámbar / obra */
  --accent-deep:#c4830c;
  --accent-soft:#f6dca0;
  --accent-glow:rgba(227,160,25,.28);

  --maxw:1240px;
  --gutter:clamp(20px,5vw,64px);
  --section:clamp(72px,9vw,128px);

  --r-sm:8px; --r-md:14px; --r-lg:22px;
  --shadow-sm:0 2px 8px -3px rgba(15,17,20,.25);
  --shadow-md:0 18px 40px -24px rgba(15,17,20,.45);
  --shadow-lg:0 40px 80px -40px rgba(15,17,20,.55);

  --ease:cubic-bezier(.22,.61,.36,1);
  --font-d:"Archivo",system-ui,sans-serif;
  --font-b:"Inter",system-ui,sans-serif;
  --font-m:"Space Mono",ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-b);
  background:var(--paper);
  color:var(--body);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
::selection{background:var(--accent);color:#1a1306}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- Tipografía ---------- */
h1,h2,h3,h4{font-family:var(--font-d);color:var(--ink);line-height:1.04;letter-spacing:-.02em;text-wrap:balance;font-weight:800}
h1{font-size:clamp(2.7rem,7.4vw,5.6rem);font-weight:900;letter-spacing:-.035em}
h2{font-size:clamp(2rem,4.4vw,3.3rem)}
h3{font-size:1.18rem;letter-spacing:-.01em}
p{text-wrap:pretty}
em{font-style:normal;color:var(--accent)}

.eyebrow{
  font-family:var(--font-m);
  text-transform:uppercase;
  font-size:.74rem;
  letter-spacing:.24em;
  color:var(--accent-deep);
  display:inline-flex;align-items:center;gap:.7em;
  margin-bottom:1.1rem;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent)}
.eyebrow--light{color:var(--accent-soft)}
.eyebrow--light::before{background:var(--accent)}

.sec-head{max-width:680px;margin-bottom:clamp(2.2rem,5vw,3.6rem)}
.sec-head h2{margin-bottom:1rem}
.sec-lead{color:var(--muted);font-size:1.06rem}
.sec-head--light h2{color:#fff}
.sec-head--light .sec-lead{color:var(--faint)}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--font-d);font-weight:700;font-size:.95rem;
  letter-spacing:-.01em;
  padding:.85em 1.4em;border-radius:var(--r-sm);
  transition:transform .25s var(--ease),background .25s,box-shadow .25s,color .25s;
  white-space:nowrap;line-height:1;
}
.btn-ic{transition:transform .25s var(--ease)}
.btn:hover .btn-ic{transform:translateX(4px)}
.btn--primary{background:var(--accent);color:#1a1306;box-shadow:0 10px 24px -12px var(--accent-glow)}
.btn--primary:hover{background:var(--accent-deep);transform:translateY(-2px)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{transform:translateY(-2px);background:#000}
.btn--outline{border:1.5px solid var(--line);color:var(--ink)}
.btn--outline:hover{border-color:var(--ink);transform:translateY(-2px)}
.btn--ghost-light{border:1.5px solid rgba(255,255,255,.4);color:#fff}
.btn--ghost-light:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px)}
.btn--sm{padding:.6em 1em;font-size:.86rem}
.btn--lg{padding:1.02em 1.7em;font-size:1.02rem}
.btn--block{width:100%;justify-content:center}

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  transition:background .3s,box-shadow .3s,backdrop-filter .3s;
}
.header-inner{display:flex;align-items:center;gap:1.5rem;height:78px}
.brand{display:flex;align-items:center;gap:.6rem;margin-right:auto}
.brand-mark{
  width:30px;height:30px;border-radius:5px;flex:none;
  background:linear-gradient(135deg,var(--accent),var(--accent-deep));
  position:relative;
  box-shadow:inset 0 0 0 2px rgba(0,0,0,.18);
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;
  background:
    repeating-linear-gradient(135deg,#1a1306 0 3px,transparent 3px 6px);
  opacity:.55;
}
.brand-word{
  font-family:var(--font-d);font-weight:900;font-size:1.16rem;
  letter-spacing:.02em;color:#fff;line-height:.95;
  display:flex;flex-direction:column;
  transition:color .3s;
}
.brand-word small{
  font-family:var(--font-m);font-weight:400;font-size:.52rem;
  letter-spacing:.34em;color:var(--accent);text-transform:uppercase;margin-top:2px;
}
.nav{display:flex;gap:2rem}
.nav a{
  font-weight:500;font-size:.95rem;color:rgba(255,255,255,.85);
  position:relative;transition:color .2s;
}
.nav a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--accent);transition:width .25s var(--ease)}
.nav a:hover{color:#fff}
.nav a:hover::after{width:100%}
.header-cta{display:flex}

.site-header.scrolled{
  background:rgba(244,243,239,.86);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  box-shadow:0 1px 0 var(--line),0 10px 30px -24px rgba(0,0,0,.4);
}
.site-header.scrolled .brand-word{color:var(--ink)}
.site-header.scrolled .nav a{color:var(--body)}
.site-header.scrolled .brand-mark{box-shadow:inset 0 0 0 2px rgba(0,0,0,.12)}

/* burger */
.burger{display:none;flex-direction:column;gap:5px;width:30px;padding:4px}
.burger span{height:2px;width:100%;background:#fff;border-radius:2px;transition:.3s var(--ease)}
.site-header.scrolled .burger span{background:var(--ink)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:55;
  background:rgba(14,16,20,.97);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
}
.drawer.open{opacity:1;visibility:visible}
.drawer-nav{display:flex;flex-direction:column;gap:1.6rem;text-align:center}
.drawer-nav a{font-family:var(--font-d);font-weight:700;font-size:1.6rem;color:#fff}
.drawer-nav a:not(.btn):hover{color:var(--accent)}
.drawer-nav .btn{margin-top:1rem;justify-content:center}

/* ============================================================
   Hero
   ============================================================ */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 52%}
.hero-scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(14,16,20,.42) 0%,rgba(14,16,20,.12) 32%,rgba(14,16,20,.66) 78%,rgba(14,16,20,.92) 100%),
    linear-gradient(95deg,rgba(14,16,20,.6) 0%,rgba(14,16,20,0) 55%);
}
.hero-inner{position:relative;z-index:2;padding-block:clamp(2rem,7vh,5rem) clamp(4rem,9vh,7rem)}
.hero h1{color:#fff;margin-bottom:1.5rem}
.hero h1 em{color:var(--accent)}
.hero-sub{color:rgba(255,255,255,.9);font-size:clamp(1.05rem,1.8vw,1.32rem);max-width:620px;margin-bottom:2rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:.9rem;margin-bottom:2.4rem}
.hero-meta{list-style:none;display:flex;flex-wrap:wrap;gap:1.6rem;color:rgba(255,255,255,.82);font-size:.92rem;font-family:var(--font-m)}
.hero-meta li{display:flex;align-items:center;gap:.5rem}
.hero-meta a:hover{color:var(--accent)}
.hero-meta .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}

.scroll-cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:3;width:26px;height:42px;border:2px solid rgba(255,255,255,.5);border-radius:14px;display:flex;justify-content:center;padding-top:7px}
.scroll-cue span{width:3px;height:8px;border-radius:2px;background:#fff;animation:cue 1.6s var(--ease) infinite}
@keyframes cue{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}80%,100%{opacity:0;transform:translateY(10px)}}

/* ============================================================
   Stats
   ============================================================ */
.stats{background:var(--ink);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-dark);border-inline:1px solid var(--line-dark)}
.stat{background:var(--ink);padding:clamp(2rem,4vw,3.2rem) clamp(1.2rem,2.5vw,2rem);text-align:center}
.stat-num{font-family:var(--font-d);font-weight:900;font-size:clamp(2.2rem,4.5vw,3.4rem);color:#fff;letter-spacing:-.03em;display:block;line-height:1}
.stat-num [data-countup]{color:var(--accent)}
.stat-pct,.stat-num em{color:var(--accent)}
.stats .stat:nth-child(1) .stat-num,
.stats .stat:nth-child(3) .stat-num{color:var(--accent)}
.stat-label{display:block;margin-top:.7rem;color:var(--faint);font-size:.85rem;font-family:var(--font-m);letter-spacing:.02em;text-wrap:balance}

/* ============================================================
   Intro
   ============================================================ */
.intro{padding-block:var(--section);background:var(--paper)}
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.intro-text h2{margin-bottom:1.4rem}
.intro-text p{margin-bottom:1.1rem;color:var(--body);font-size:1.06rem}
.intro-cta{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.intro-fig{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);aspect-ratio:4/5}
.intro-fig img{width:100%;height:100%;object-fit:cover;object-position:center 60%}
.intro-fig figcaption{
  position:absolute;left:16px;bottom:16px;
  background:rgba(14,16,20,.78);backdrop-filter:blur(6px);
  color:#fff;font-family:var(--font-m);font-size:.78rem;letter-spacing:.02em;
  padding:.5em .85em;border-radius:var(--r-sm);
}
.intro-fig figcaption span{color:var(--accent)}

/* ============================================================
   Servicios
   ============================================================ */
.services{padding-block:var(--section);background:var(--paper-2)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.svc{background:var(--paper);padding:clamp(1.8rem,3vw,2.6rem);transition:background .3s,transform .3s}
.svc-no{font-family:var(--font-m);font-size:.95rem;color:var(--accent-deep);font-weight:700;letter-spacing:.05em}
.svc h3{margin:1rem 0 .6rem}
.svc p{color:var(--muted);font-size:.98rem}
.svc:hover{background:var(--ink)}
.svc:hover h3{color:#fff}
.svc:hover p{color:var(--faint)}
.svc:hover .svc-no{color:var(--accent)}

/* ============================================================
   Obras / galería
   ============================================================ */
.works{padding-block:var(--section);background:var(--paper)}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:14px}
.ga{position:relative;overflow:hidden;border-radius:var(--r-md);background:var(--paper-3);box-shadow:var(--shadow-sm)}
.ga img{width:100%;height:100%;object-fit:cover;object-position:var(--p,center);transition:transform .6s var(--ease)}
.ga::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(14,16,20,.72));opacity:.85;transition:opacity .3s}
.ga:hover img{transform:scale(1.06)}
.ga-cap{
  position:absolute;left:14px;bottom:12px;right:14px;z-index:2;
  color:#fff;font-family:var(--font-m);font-size:.76rem;letter-spacing:.02em;
  text-align:left;transform:translateY(4px);opacity:.92;transition:.3s var(--ease);
}
.ga--wide{grid-column:span 2}
.ga--tall{grid-row:span 2}
@media(max-width:860px){
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
  .ga--wide{grid-column:span 2}
  .ga--tall{grid-row:span 1}
}

/* ============================================================
   Por qué (dark)
   ============================================================ */
.why{padding-block:var(--section);background:var(--night);color:#fff;position:relative;overflow:hidden}
.why::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background:radial-gradient(900px 500px at 85% -10%,rgba(227,160,25,.16),transparent 60%);
}
.why .container{position:relative}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--r-lg);overflow:hidden}
.pillar{background:var(--night);padding:clamp(1.8rem,3vw,2.4rem);transition:background .3s}
.pillar:hover{background:var(--night-2)}
.pillar-no{font-family:var(--font-m);color:var(--accent);font-size:.9rem;font-weight:700}
.pillar h3{color:#fff;margin:1.1rem 0 .6rem}
.pillar p{color:var(--faint);font-size:.96rem}

/* ============================================================
   Ubicación + horario
   ============================================================ */
.location{padding-block:var(--section);background:var(--paper-2)}
.loc-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(1.6rem,3vw,2.6rem);align-items:stretch}
.loc-map{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-md);min-height:420px}
.loc-map iframe{width:100%;height:100%;border:0;min-height:420px;filter:grayscale(.2) contrast(1.02)}
.loc-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(1.8rem,3.5vw,2.8rem)}
.loc-card h2{margin-bottom:1rem}
.loc-addr{color:var(--body);font-size:1.05rem;margin-bottom:1.4rem}
.loc-status{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-m);font-size:.9rem;font-weight:700;padding:.5em .9em;border-radius:30px;background:var(--paper-2);margin-bottom:1.4rem}
.status-dot{width:9px;height:9px;border-radius:50%;background:var(--muted)}
.status-dot.open{background:#2faf5a;box-shadow:0 0 0 4px rgba(47,175,90,.18)}
.status-dot.closed{background:#d4503f;box-shadow:0 0 0 4px rgba(212,80,63,.18)}
.hours{width:100%;border-collapse:collapse;margin-bottom:1.6rem}
.hours th,.hours td{text-align:left;padding:.55em 0;font-size:.95rem;border-bottom:1px solid var(--line)}
.hours th{font-weight:500;color:var(--body);font-family:var(--font-b)}
.hours td{text-align:right;color:var(--muted);font-family:var(--font-m);font-size:.88rem}
.hours tr.today th,.hours tr.today td{color:var(--ink);font-weight:700}
.hours tr.today th::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:.5em;vertical-align:middle}
.loc-cta{display:flex;flex-wrap:wrap;gap:.8rem}

/* ============================================================
   Contacto (dark)
   ============================================================ */
.contact{padding-block:var(--section);background:var(--night);color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.contact-copy h2{color:#fff;margin-bottom:1.1rem}
.contact-copy p{color:var(--faint);margin-bottom:1.8rem;font-size:1.05rem}
.contact-list{list-style:none;display:grid;gap:.2rem}
.contact-list li{display:flex;gap:1rem;align-items:baseline;padding:.8em 0;border-top:1px solid var(--line-dark);font-size:1rem}
.contact-list li span{width:96px;flex:none;font-family:var(--font-m);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
.contact-list a:hover{color:var(--accent)}

.contact-form{background:var(--night-2);border:1px solid var(--line-dark);border-radius:var(--r-lg);padding:clamp(1.6rem,3vw,2.4rem)}
.field{margin-bottom:1.1rem}
.field label{display:block;font-family:var(--font-m);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:.5rem}
.field input,.field textarea{
  width:100%;background:#0c0e12;border:1px solid var(--line-dark);border-radius:var(--r-sm);
  padding:.85em 1em;color:#fff;font-family:var(--font-b);font-size:1rem;transition:border-color .2s,box-shadow .2s;resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:#5a5e66}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.check{display:flex;gap:.7rem;align-items:flex-start;font-size:.88rem;color:var(--faint);margin-bottom:1.3rem;cursor:pointer}
.check input{margin-top:3px;accent-color:var(--accent);width:16px;height:16px;flex:none}
.check a{color:var(--accent-soft);text-decoration:underline}
.form-note{margin-top:1rem;font-family:var(--font-m);font-size:.9rem;padding:.8em 1em;border-radius:var(--r-sm)}
.form-note.ok{background:rgba(47,175,90,.14);color:#7fe0a2;border:1px solid rgba(47,175,90,.3)}
.form-note.err{background:rgba(212,80,63,.14);color:#ff9b8e;border:1px solid rgba(212,80,63,.3)}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{background:#0a0c0f;color:#fff;padding-top:clamp(3rem,6vw,5rem)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2.2rem;padding-bottom:3rem}
.brand-word--foot{color:#fff;font-size:1.4rem}
.foot-brand p{color:var(--faint);font-size:.95rem;margin-top:1rem;max-width:34ch}
.foot-col h4{font-family:var(--font-m);font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:1.1rem;font-weight:700}
.foot-col a,.foot-col span{display:block;color:var(--faint);font-size:.95rem;margin-bottom:.6rem;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-block:1.5rem;border-top:1px solid var(--line-dark)}
.foot-legal{display:flex;gap:1.4rem;flex-wrap:wrap}
.foot-legal a{color:var(--faint);font-size:.85rem}
.foot-legal a:hover{color:#fff}
.foot-copy{color:var(--muted);font-size:.85rem;font-family:var(--font-m)}

/* ============================================================
   Call bar (móvil)
   ============================================================ */
.callbar{position:fixed;left:0;right:0;bottom:0;z-index:50;display:none;gap:0;background:var(--ink);box-shadow:0 -8px 24px -16px rgba(0,0,0,.6)}
.callbar-btn{flex:1;text-align:center;padding:1em;font-family:var(--font-d);font-weight:700;color:#fff;letter-spacing:.01em}
.callbar-btn--call{background:var(--accent);color:#1a1306}
.callbar-btn--wa{background:#1f8a4c}

/* ============================================================
   Lightbox
   ============================================================ */
.lightbox{position:fixed;inset:0;z-index:90;background:rgba(8,9,11,.94);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:92vw;max-height:86vh;border-radius:var(--r-sm);box-shadow:var(--shadow-lg)}
.lb-close{position:absolute;top:18px;right:20px;color:#fff;font-size:1.6rem;width:46px;height:46px;border-radius:50%;background:rgba(255,255,255,.1)}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:2.4rem;width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.08);transition:background .2s}
.lb-nav:hover{background:rgba(255,255,255,.2)}
.lb-prev{left:18px}.lb-next{right:18px}

/* ============================================================
   Reveal
   ============================================================ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}

/* ============================================================
   Responsive
   ============================================================ */
@media(max-width:980px){
  .intro-grid,.loc-grid,.contact-grid{grid-template-columns:1fr}
  .intro-fig{aspect-ratio:16/10;order:-1}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .nav,.header-cta{display:none}
  .burger{display:flex}
  .callbar{display:flex}
  body{padding-bottom:54px}
  .svc-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .hero-meta{gap:1rem}
  .foot-grid{grid-template-columns:1fr}
  .foot-bar{justify-content:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}