/* ===================================================================
   V ARQUITECTOS — Sistema de diseño
   Inspirado en Apple: tipografía limpia, blanco/negro, mucho espacio,
   parallax sutil, información siempre a la mano.
=================================================================== */

:root{
  --bg:#ffffff;
  --bg-alt:#f5f5f7;
  --ink:#17161a;
  --ink-dim:#6e6e73;
  --ink-faint:#a1a1a6;
  --line:#e5e5e7;
  --stone:#d2d2d7;
  --accent:#c1622f;
  --accent-dim:#a2501f;
  --gold:#b8934a;
  --card-bg:#ffffff;
  --wa:#25d366;

  --sans:-apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --serif:'Fraunces', Georgia, serif;
  --mono:'SF Mono', 'IBM Plex Mono', ui-monospace, monospace;

  --maxw:1400px;
  --radius:22px;
  --radius-sm:12px;
  --ease:cubic-bezier(.16,.84,.44,1);
  --edge:5.5vw; /* shared left/right margin — keep every full-width element aligned to this */
}
@media (min-width:900px){:root{--edge:3.5vw;}}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.47;
  -webkit-font-smoothing:antialiased;letter-spacing:-0.011em;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.02em;}
p{margin:0;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--edge);}
.wrap-narrow{max-width:720px;margin:0 auto;padding:0 var(--edge);}
@media (min-width:900px){.wrap-narrow{padding:0;}}

.eyebrow{
  font-size:.82rem;font-weight:600;letter-spacing:.01em;color:var(--accent-dim);
  margin-bottom:.9rem;text-transform:none;
}

/* ---------- scroll progress ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;background:var(--ink);
  transform-origin:0 50%;transform:scaleX(0);z-index:200;
}

/* ---------- nav (Apple-style glass bar) ---------- */
.nav{
  position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--edge);height:52px;background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.06);
}
.nav-logo{font-size:1rem;font-weight:600;letter-spacing:-0.01em;}
.nav-logo b{color:var(--accent-dim);}
.nav-links{display:none;align-items:center;gap:2.4rem;}
.nav-links a{font-size:.82rem;font-weight:500;color:var(--ink);position:relative;padding:.2rem 0;opacity:.86;}
.nav-links a:hover,.nav-links a[aria-current="page"]{opacity:1;}
.nav-cta{
  border:none;background:var(--ink);color:var(--bg);padding:.5rem 1.1rem;border-radius:100px;
  font-size:.78rem;font-weight:600;
}
.nav-cta:hover{background:var(--accent-dim);}
.lang-switch{display:flex;gap:.5rem;font-size:.72rem;font-weight:600;color:var(--ink-faint);}
.lang-switch a{padding:.15rem .2rem;}
.lang-switch a.is-active{color:var(--ink);}
.burger{
  display:flex;flex-direction:column;justify-content:center;gap:5px;width:30px;height:30px;
  background:none;border:none;cursor:pointer;padding:0;
}
.burger span{display:block;height:1.5px;background:var(--ink);width:100%;transition:transform .3s var(--ease),opacity .3s;}
@media (min-width:960px){.nav-links{display:flex;}.burger{display:none;}}

.mobile-menu{
  position:fixed;inset:0;z-index:99;background:rgba(255,255,255,.98);backdrop-filter:blur(20px);
  display:flex;flex-direction:column;padding:6.5rem 8vw 3rem;gap:1.3rem;
  transform:translateY(-100%);transition:transform .45s var(--ease);
}
.mobile-menu.is-open{transform:translateY(0);}
.mobile-menu a{font-size:1.9rem;font-weight:600;letter-spacing:-.02em;}
.mm-cta{margin-top:1rem;color:var(--accent-dim);}
.mm-lang{display:flex;gap:1rem;margin-top:auto;font-size:.85rem;color:var(--ink-faint);font-weight:600;}

/* ---------- WhatsApp / call float ---------- */
.wa-float{
  position:fixed;right:1.4rem;bottom:1.4rem;z-index:120;width:56px;height:56px;border-radius:50%;
  background:var(--ink);color:var(--wa);display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px rgba(0,0,0,.22);transition:transform .25s var(--ease);
}
.wa-float svg{width:25px;height:25px;}
.wa-float:hover{transform:scale(1.08);}
.wa-float .wa-ping{position:absolute;inset:0;border-radius:50%;background:var(--ink);opacity:.35;animation:ping 2.6s ease-out infinite;}
@keyframes ping{0%{transform:scale(1);opacity:.3;}100%{transform:scale(1.85);opacity:0;}}
.call-float{
  position:fixed;right:1.4rem;bottom:5.4rem;z-index:119;width:46px;height:46px;border-radius:50%;
  background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(0,0,0,.16);border:1px solid var(--line);
}
.call-float svg{width:19px;height:19px;}
@media (prefers-reduced-motion:reduce){.wa-float .wa-ping{animation:none;}}

/* ---------- hero (parallax, bold editorial type) ---------- */
.hero{position:relative;height:92vh;min-height:560px;max-height:920px;overflow:hidden;}
.hero-media{position:absolute;inset:-8% 0;}
.hero-media img{width:100%;height:116%;object-fit:cover;object-position:center 42%;transform:scale(1.06);opacity:0;
  transition:opacity 1.1s ease;will-change:transform;}
.hero.is-loaded .hero-media img{opacity:1;}
.hero-media::after{content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.32) 0%,rgba(0,0,0,.02) 30%,rgba(0,0,0,.15) 60%,rgba(0,0,0,.72) 100%);}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;
  padding:0 var(--edge) 4.6rem;color:#fff;}
.hero-content .eyebrow{color:#f2ede4;opacity:.95;display:inline-flex;align-items:center;gap:.5rem;}
.hero-content .eyebrow::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none;}
.hero h1{font-size:clamp(2.7rem,6.6vw,5.4rem);line-height:1.01;max-width:15ch;font-weight:700;letter-spacing:-0.035em;}
.hero-sub{margin-top:1.3rem;max-width:44ch;font-size:1.18rem;color:rgba(255,255,255,.88);line-height:1.5;font-weight:400;}
@media (max-width:640px){.hero{height:88vh;min-height:600px;}.hero h1{max-width:12ch;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;padding:.85rem 1.6rem;font-size:.92rem;font-weight:600;
  border-radius:100px;transition:all .25s var(--ease);
}
.btn-solid{background:var(--ink);color:var(--bg);}
.btn-solid:hover{background:var(--accent-dim);}
.btn-outline{border:1px solid rgba(0,0,0,.18);color:var(--ink);}
.btn-outline:hover{border-color:var(--ink);background:var(--ink);color:var(--bg);}
.btn-wa{background:var(--ink);color:#fff;}
.btn-wa svg{width:18px;height:18px;color:var(--wa);}
.btn-wa:hover{background:var(--accent-dim);}
.btn-wa:hover svg{color:#fff;}
.btn-on-dark.btn-solid{background:#fff;color:var(--ink);}
.btn-on-dark.btn-solid:hover{background:var(--accent);color:#fff;}

/* ---------- sections ---------- */
.section{padding:6.5rem 0;}
.section-tight{padding:4rem 0;}
.section-alt{background:var(--bg-alt);}
.section-dark{background:var(--ink);color:var(--bg);position:relative;overflow:hidden;}
.section-dark::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.5;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.section-dark .wrap{position:relative;z-index:1;}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:3rem;}
.section-head h2{font-size:clamp(1.9rem,3.2vw,2.6rem);max-width:18ch;letter-spacing:-.025em;}
.section-head p{max-width:36ch;color:var(--ink-dim);line-height:1.55;font-size:1.02rem;}
.section-dark .section-head p{color:#98989d;}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;}}

/* ---------- category tiles ---------- */
.cat-grid{display:grid;grid-template-columns:1fr;gap:1.1rem;}
@media (min-width:760px){.cat-grid{grid-template-columns:repeat(3,1fr);}}
.cat-card{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);background:var(--stone);}
@media (min-width:760px){.cat-card{aspect-ratio:5/6;}}
.cat-card .parallax-img{position:absolute;inset:-10% 0;width:100%;height:120%;}
.cat-card img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease);}
.cat-card:hover img{transform:scale(1.05);}
.cat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 40%,rgba(0,0,0,.7) 100%);}
.cat-card-body{position:absolute;left:0;right:0;bottom:0;padding:1.8rem;z-index:2;color:#fff;}
.cat-card-body .eyebrow{color:#f2ede4;}
.cat-card-body h3{font-size:1.6rem;font-weight:700;letter-spacing:-.02em;}
.cat-card-body span{display:inline-flex;align-items:center;gap:.4rem;margin-top:.6rem;font-size:.85rem;font-weight:600;color:#fff;}
.cat-card.is-soon .cat-card-body span{color:#c7c7cc;}

/* ---------- filters + project grid ---------- */
.filters{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:2.8rem;position:sticky;top:64px;z-index:40;
  background:rgba(255,255,255,.85);backdrop-filter:blur(14px);padding:.8rem 0;}
.filter-btn{
  padding:.55rem 1.2rem;border:none;border-radius:100px;font-size:.86rem;font-weight:600;color:var(--ink-dim);
  background:var(--bg-alt);transition:all .22s var(--ease);cursor:pointer;
}
.filter-btn:hover{color:var(--ink);}
.filter-btn.is-active{background:var(--ink);color:var(--bg);}

.proj-grid{display:grid;grid-template-columns:1fr;gap:2.2rem 1.6rem;}
@media (min-width:700px){.proj-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1100px){.proj-grid{grid-template-columns:repeat(3,1fr);}}
.proj-card{display:block;}
.proj-card .thumb{aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);background:var(--stone);}
.proj-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.proj-card:hover .thumb img{transform:scale(1.045);}
.proj-card .meta{padding-top:.9rem;display:flex;justify-content:space-between;align-items:baseline;gap:1rem;}
.proj-card h3{font-size:1.18rem;font-weight:700;letter-spacing:-.01em;}
.proj-card .loc{font-size:.8rem;color:var(--ink-faint);text-align:right;line-height:1.4;}
.proj-card[hidden]{display:none;}

/* ---------- project detail ---------- */
.page-header{padding:7.5rem 0 0;}
.page-header .desc{margin-top:1rem;max-width:58ch;color:var(--ink-dim);line-height:1.55;font-size:1.14rem;}
.page-header-img{margin-top:3rem;aspect-ratio:3/2;overflow:hidden;border-radius:var(--radius);position:relative;}
@media (max-width:640px){.page-header-img{aspect-ratio:4/3;}}
.page-header-img img{width:100%;height:100%;object-fit:cover;}

/* sticky spec bar — Apple-style tech specs, always reachable */
.spec-bar{
  position:sticky;top:52px;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.spec-bar .wrap{display:flex;flex-wrap:wrap;gap:1.6rem 2.4rem;padding:1rem var(--edge);align-items:center;}
.spec-item{display:flex;flex-direction:column;gap:.15rem;}
.spec-item dt{font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);}
.spec-item dd{margin:0;font-size:.95rem;font-weight:600;color:var(--ink);}
.spec-jump{display:flex;gap:1.4rem;margin-left:auto;flex-wrap:wrap;}
.spec-jump a{font-size:.82rem;font-weight:600;color:var(--ink-dim);}
.spec-jump a.is-active,.spec-jump a:hover{color:var(--ink);}
@media (max-width:760px){.spec-jump{display:none;}}

.ed-block{margin-bottom:3.2rem;scroll-margin-top:120px;}
.ed-block h2{font-size:1.5rem;font-weight:700;letter-spacing:-.02em;margin-bottom:.8rem;}
.ed-block p{color:var(--ink-dim);line-height:1.6;font-size:1.05rem;}

.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:.8rem;margin:3.2rem 0;}
@media (min-width:760px){.gallery{grid-template-columns:repeat(3,1fr);}}
.gallery figure{margin:0;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius-sm);cursor:zoom-in;}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.gallery figure:hover img{transform:scale(1.04);}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:300;background:rgba(0,0,0,.95);display:flex;align-items:center;
  justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s;}
.lightbox.is-open{opacity:1;pointer-events:auto;}
.lightbox img{max-width:90vw;max-height:86vh;object-fit:contain;border-radius:8px;}
.lightbox-close{position:absolute;top:1.6rem;right:1.8rem;color:#fff;font-size:.85rem;font-weight:600;cursor:pointer;background:none;border:none;}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;padding:1rem;}
.lightbox-prev{left:.5rem;}
.lightbox-next{right:.5rem;}

/* ---------- process steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:2.4rem;}
@media (min-width:760px){.steps{grid-template-columns:repeat(2,1fr);}}
.step{border-top:1px solid var(--line);padding-top:1.5rem;}
.step .num{font-size:.85rem;font-weight:700;color:var(--accent-dim);}
.step h3{margin-top:.5rem;font-size:1.2rem;font-weight:700;letter-spacing:-.01em;}
.step p{margin-top:.6rem;color:var(--ink-dim);line-height:1.55;font-size:.98rem;}

/* ---------- services ---------- */
.services-list{border-top:1px solid var(--line);}
.service-row{display:grid;grid-template-columns:1fr;gap:.8rem;padding:2.2rem 0;border-bottom:1px solid var(--line);}
@media (min-width:760px){.service-row{grid-template-columns:1fr 2fr;}}
.service-row .idx{font-size:.78rem;font-weight:700;color:var(--accent-dim);}
.service-row h3{font-size:1.35rem;font-weight:700;margin-top:.3rem;letter-spacing:-.015em;}
.service-row p{color:var(--ink-dim);line-height:1.6;margin-top:.8rem;max-width:58ch;}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:2rem;}
@media (min-width:760px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat b{display:block;font-size:3rem;font-weight:700;letter-spacing:-.03em;}
.stat span{font-size:.82rem;font-weight:500;color:var(--ink-faint);}
.section-dark .stat span{color:#98989d;}

.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.5rem 0;}
.marquee-track{display:flex;width:max-content;animation:marquee 32s linear infinite;}
.marquee-track span{font-size:1.3rem;font-weight:600;color:var(--ink-faint);padding:0 2.2rem;white-space:nowrap;}
@keyframes marquee{from{transform:translateX(0);}to{transform:translateX(-50%);}}
@media (prefers-reduced-motion:reduce){.marquee-track{animation:none;}}

/* ---------- final CTA ---------- */
.final-cta{padding:6.5rem 0;text-align:center;background:var(--ink);color:var(--bg);border-radius:var(--radius);margin:0 var(--edge);width:auto;}
.final-cta h2{font-size:clamp(2rem,4vw,3rem);font-weight:700;letter-spacing:-.03em;max-width:18ch;margin:0 auto 1.8rem;}
.final-cta .cta-row{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;}
.final-cta .btn-outline{border-color:rgba(255,255,255,.3);color:var(--bg);}
.final-cta .btn-outline:hover{background:var(--bg);color:var(--ink);}
@media (max-width:640px){.final-cta{margin:0 0;border-radius:0;}}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:3rem;}
@media (min-width:900px){.contact-grid{grid-template-columns:1fr 1fr;}}
.contact-methods dl{display:grid;gap:1.4rem;margin-top:1.8rem;}
.contact-methods dt{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);}
.contact-methods dd{margin:.3rem 0 0;font-size:1.15rem;font-weight:600;}
.contact-methods dd a:hover{color:var(--accent-dim);}
.contact-cards{display:flex;gap:.9rem;margin-top:2rem;flex-wrap:wrap;}
.contact-card{
  flex:1;min-width:170px;border:1px solid var(--line);padding:1.4rem;border-radius:var(--radius-sm);
  display:flex;flex-direction:column;gap:.6rem;
}
.contact-card svg{width:21px;height:21px;}

form.contact-form{display:grid;gap:1.2rem;}
.field{display:flex;flex-direction:column;gap:.45rem;}
.field label{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-faint);}
.field input,.field select,.field textarea{
  border:none;border-bottom:1px solid var(--line);background:transparent;padding:.65rem 0;
  font-family:var(--sans);font-size:1rem;color:var(--ink);transition:border-color .25s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink);}
.field textarea{resize:vertical;min-height:100px;}
.form-note{font-size:.78rem;color:var(--ink-faint);margin-top:-.3rem;}

/* ---------- footer ---------- */
footer{padding:4.5rem 0 2.2rem;}
.foot-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:2rem;padding-bottom:2.6rem;border-bottom:1px solid var(--line);}
.foot-nav{display:flex;flex-wrap:wrap;gap:1.5rem;}
.foot-nav a{font-size:.85rem;color:var(--ink-dim);}
.foot-nav a:hover{color:var(--ink);}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;padding-top:1.4rem;font-size:.76rem;color:var(--ink-faint);}

/* ---------- pull quote (editorial statement) ---------- */
.pull-quote{padding:7rem 0;}
.pull-quote blockquote{margin:0;font-size:clamp(1.9rem,4vw,3.1rem);font-weight:600;letter-spacing:-.025em;
  line-height:1.18;max-width:22ch;}
.pull-quote cite{display:block;margin-top:1.8rem;font-size:.85rem;font-weight:600;color:var(--ink-faint);font-style:normal;}

/* ---------- spotlight (full-bleed featured project) ---------- */
.spotlight{position:relative;min-height:640px;overflow:hidden;border-radius:var(--radius);margin:0 var(--edge);}
.spotlight-media{position:absolute;inset:-10% 0;width:100%;height:120%;}
.spotlight-media img{width:100%;height:100%;object-fit:cover;}
.spotlight::after{content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(0,0,0,.62) 0%,rgba(0,0,0,.18) 55%,rgba(0,0,0,0) 100%);}
.spotlight-content{position:relative;z-index:2;min-height:640px;display:flex;flex-direction:column;
  justify-content:center;padding:4rem 3.5rem;color:#fff;max-width:560px;}
.spotlight-content .eyebrow{color:#f2ede4;}
.spotlight-content .eyebrow::before{background:var(--gold);}
.spotlight-content h2{font-size:clamp(2rem,3.6vw,3rem);font-weight:700;letter-spacing:-.03em;}
.spotlight-content p{margin-top:1.1rem;color:rgba(255,255,255,.85);line-height:1.6;font-size:1.05rem;max-width:44ch;}
.spotlight-content .btn{margin-top:2rem;}
@media (max-width:640px){.spotlight{margin:0;border-radius:0;min-height:560px;}
  .spotlight-content{min-height:560px;padding:2.6rem 6vw;}}

/* ---------- FAQ (accordion, native <details>, AEO-friendly) ---------- */
.faq-list{border-top:1px solid var(--line);max-width:820px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:1.6rem 0;display:flex;justify-content:space-between;
  align-items:center;gap:1.5rem;font-size:1.08rem;font-weight:600;letter-spacing:-.01em;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'+';flex:none;font-size:1.6rem;font-weight:400;color:var(--ink-faint);transition:transform .25s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--accent);}
.faq-item .faq-a{padding:0 0 1.8rem;max-width:64ch;color:var(--ink-dim);line-height:1.65;font-size:1rem;}

/* ---------- soon panel ---------- */
.soon-panel{border:1px solid var(--line);border-radius:var(--radius);padding:4rem 2rem;text-align:center;background:var(--bg-alt);}
.soon-panel h3{font-size:1.6rem;font-weight:700;letter-spacing:-.02em;}
.soon-panel p{max-width:42ch;margin:.9rem auto 0;color:var(--ink-dim);line-height:1.55;}

/* ---------- utility ---------- */
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--bg);padding:.8rem 1.2rem;z-index:400;}
.skip-link:focus{left:1rem;top:1rem;}