/* =========================================================
   FRUCTUS 3D — hoja de estilos principal
   ========================================================= */

:root{
  --copper:      #c2571f;
  --copper-dark: #9c4416;
  --copper-light:#e08a4c;
  --ink:         #1c1815;
  --ink-soft:    #2b2620;
  --cream:       #f6f3ee;
  --cream-2:     #efe9e0;
  --paper:       #ffffff;
  --gray:        #746c63;
  --gray-light:  #a89f94;
  --line:        #e2dbcf;

  --font-head: "Poppins", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;

  --container: 1180px;
  --radius: 14px;
  --shadow: 0 20px 45px -20px rgba(28,24,21,.35);
  --transition: .35s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 84px; }
body{
  margin:0;
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family: var(--font-head); margin:0; line-height:1.15; font-weight:600; }
p{ margin:0; }
button{ font-family: inherit; cursor:pointer; }

.container{ width:100%; max-width: var(--container); margin:0 auto; padding: 0 24px; }

.section-tag{
  display:inline-flex; align-items:center; gap:8px;
  font-size:.78rem; letter-spacing:.14em; text-transform:uppercase;
  color: var(--copper); font-weight:600; margin-bottom:14px;
}
.section-tag::before{
  content:""; width:26px; height:2px; background: var(--copper);
}
.section-head{ max-width: 680px; margin-bottom: 46px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{ font-size: clamp(1.7rem, 3.2vw, 2.5rem); color: var(--ink); }
.section-head p{ margin-top:14px; color: var(--gray); font-size:1.02rem; }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding: 14px 28px; border-radius: 999px; font-weight:600; font-size:.95rem;
  border: 1px solid transparent; transition: var(--transition); white-space:nowrap;
}
.btn-primary{ background: var(--copper); color:#fff; }
.btn-primary:hover{ background: var(--copper-dark); transform: translateY(-2px); }
.btn-ghost{ background: transparent; border-color: rgba(255,255,255,.55); color:#fff; }
.btn-ghost:hover{ background: rgba(255,255,255,.12); border-color:#fff; }
.btn-dark{ background: var(--ink); color:#fff; }
.btn-dark:hover{ background: var(--ink-soft); transform: translateY(-2px); }
.btn-outline{ background:transparent; border-color: var(--ink); color: var(--ink); }
.btn-outline:hover{ background: var(--ink); color:#fff; }
.btn-wa{ background:#25D366; color:#0b3d20; }
.btn-wa:hover{ background:#1fb959; transform: translateY(-2px); }
.btn svg{ width:18px; height:18px; flex-shrink:0; }

/* ---------- Header ---------- */
.site-header{
  position: fixed; top:0; left:0; right:0; z-index: 1000;
  padding: 18px 0; transition: var(--transition);
  background: transparent;
}
.site-header.scrolled{
  background: rgba(246,243,238,.92); backdrop-filter: blur(10px);
  padding: 12px 0; box-shadow: 0 6px 20px -14px rgba(0,0,0,.25);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; }
.brand{ display:flex; align-items:center; gap:10px; font-family: var(--font-head); font-weight:700; font-size:1.28rem; letter-spacing:.01em; color:#fff; transition: var(--transition); }
.site-header.scrolled .brand{ color: var(--ink); }
.brand .cube{
  width:34px; height:34px; border-radius:8px;
  background: linear-gradient(135deg, var(--copper-light), var(--copper-dark));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:.95rem; font-weight:800; flex-shrink:0;
  box-shadow: 0 6px 14px -6px rgba(194,87,31,.7);
}
.brand span.accent{ color: var(--copper); }

.main-nav{ display:flex; align-items:center; gap:34px; }
.main-nav a{
  font-size:.92rem; font-weight:500; color: rgba(255,255,255,.88);
  transition: var(--transition); position:relative; padding: 4px 0;
}
.site-header.scrolled .main-nav a{ color: var(--ink-soft); }
.main-nav a::after{
  content:""; position:absolute; left:0; bottom:-4px; width:0; height:2px;
  background: var(--copper); transition: var(--transition);
}
.main-nav a:hover::after{ width:100%; }
.header-actions{ display:flex; align-items:center; gap:14px; }
.header-actions .btn{ padding:10px 20px; font-size:.86rem; }
.header-actions .btn-ghost{ display:inline-flex; }
.site-header.scrolled .header-actions .btn-ghost{ border-color: var(--ink); color: var(--ink); }
.site-header.scrolled .header-actions .btn-ghost:hover{ background: var(--ink); color:#fff; }

.nav-toggle{
  display:none; width:42px; height:42px; border-radius:10px; border:1px solid rgba(255,255,255,.4);
  background: transparent; flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.site-header.scrolled .nav-toggle{ border-color: var(--line); }
.nav-toggle span{ width:20px; height:2px; background:#fff; transition: var(--transition); }
.site-header.scrolled .nav-toggle span{ background: var(--ink); }

/* ---------- Hero ---------- */
.hero{
  position:relative; min-height: 100vh; display:flex; align-items:center;
  padding-top: 120px; padding-bottom: 90px; color:#fff; overflow:hidden;
}
.hero::before{
  content:""; position:absolute; inset:0;
  background-image: linear-gradient(180deg, rgba(20,17,14,.72) 0%, rgba(18,15,12,.88) 55%, rgba(15,13,10,.96) 100%), url('../assets/img/hero-bg.jpg');
  background-size: cover; background-position: center 30%;
  z-index:-1;
}
.hero-inner{ max-width: 760px; }
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:10px; padding:8px 18px;
  border:1px solid rgba(255,255,255,.28); border-radius:999px; font-size:.8rem;
  letter-spacing:.08em; text-transform:uppercase; color: var(--copper-light); margin-bottom:26px;
  background: rgba(255,255,255,.05);
}
.hero h1{ font-size: clamp(2.3rem, 5.2vw, 3.9rem); color:#fff; }
.hero h1 em{ font-style:normal; color: var(--copper-light); }
.hero p.lead{ margin-top:22px; font-size:1.12rem; color: rgba(255,255,255,.82); max-width: 560px; }
.hero-cta{ display:flex; flex-wrap:wrap; gap:16px; margin-top:38px; }
.hero-stats{ display:flex; gap:38px; margin-top:64px; flex-wrap:wrap; }
.hero-stats div strong{ display:block; font-family: var(--font-head); font-size:1.6rem; color:#fff; }
.hero-stats div span{ font-size:.82rem; color: rgba(255,255,255,.65); }
.scroll-cue{
  position:absolute; bottom:28px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:8px; color: rgba(255,255,255,.6); font-size:.72rem;
  letter-spacing:.12em; text-transform:uppercase;
}
.scroll-cue .line{ width:1px; height:38px; background: linear-gradient(rgba(255,255,255,.8), transparent); animation: cue 1.8s infinite; }
@keyframes cue{ 0%{ transform: scaleY(0); transform-origin: top;} 50%{ transform: scaleY(1); transform-origin: top;} 51%{transform-origin:bottom;} 100%{ transform: scaleY(0); transform-origin: bottom;} }

/* ---------- Marquee de clientes ---------- */
.clients-bar{ background: var(--ink); padding: 26px 0; overflow:hidden; border-bottom: 1px solid rgba(255,255,255,.06); }
.marquee{ display:flex; width: max-content; animation: scroll-left 34s linear infinite; }
.marquee:hover{ animation-play-state: paused; }
.marquee span{
  color: rgba(255,255,255,.55); font-family: var(--font-head); font-weight:500;
  font-size: 1.05rem; padding: 0 34px; white-space:nowrap; position:relative;
}
.marquee span::after{ content:"◆"; color: var(--copper); font-size:.6rem; position:absolute; right:0; top:50%; transform:translateY(-50%); }
@keyframes scroll-left{ from{ transform: translateX(0); } to{ transform: translateX(-50%); } }

/* ---------- Nosotros ---------- */
.about{ padding: 120px 0 100px; }
.about-top{ display:grid; grid-template-columns: 1.1fr .9fr; gap:64px; align-items:start; }
.about-top p.intro{ font-size:1.15rem; color: var(--ink-soft); }
.about-top p.intro + p{ margin-top:18px; color: var(--gray); }
.value-list{ display:grid; grid-template-columns: 1fr 1fr; gap:22px; margin-top:34px; }
.value-item{ display:flex; gap:14px; }
.value-item .ic{
  width:44px; height:44px; border-radius:12px; background: var(--cream-2); color: var(--copper);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.value-item h4{ font-size:.98rem; margin-bottom:4px; }
.value-item p{ font-size:.88rem; color: var(--gray); }

.about-cards{ display:flex; flex-direction:column; gap:18px; }
.about-card{
  background: var(--paper); border-radius: var(--radius); padding: 28px 30px;
  border: 1px solid var(--line); position:relative; overflow:hidden;
}
.about-card::before{
  content:""; position:absolute; left:0; top:0; bottom:0; width:4px; background: var(--copper);
}
.about-card h4{ color: var(--copper); font-size:.78rem; letter-spacing:.1em; text-transform:uppercase; margin-bottom:10px; }
.about-card p{ font-size:.98rem; color: var(--ink-soft); font-style:italic; }

/* ---------- Servicios ---------- */
.services{ padding: 100px 0; background: var(--paper); }
.services-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:20px; }
.service-card{
  background: var(--cream); border-radius: var(--radius); padding: 28px 24px;
  border: 1px solid var(--line); transition: var(--transition);
}
.service-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; background:#fff; }
.service-card .letter{
  width:46px; height:46px; border-radius:12px; background: var(--ink); color: var(--copper-light);
  display:flex; align-items:center; justify-content:center; font-family: var(--font-head); font-weight:700;
  font-size:1.2rem; margin-bottom:18px;
}
.service-card h3{ font-size:1.05rem; margin-bottom:10px; }
.service-card > p{ font-size:.88rem; color: var(--gray); margin-bottom:14px; }
.service-card ul li{ font-size:.82rem; color: var(--ink-soft); padding: 5px 0 5px 16px; position:relative; border-top:1px dashed var(--line); }
.service-card ul li:first-child{ border-top:none; }
.service-card ul li::before{ content:"—"; position:absolute; left:0; color: var(--copper); }

/* ---------- Proceso ---------- */
.process{ padding: 110px 0; background: var(--ink); color:#fff; position:relative; }
.process .section-tag{ color: var(--copper-light); }
.process .section-head h2{ color:#fff; }
.process .section-head p{ color: rgba(255,255,255,.6); }
.process-track{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 18px 20px;
}
.step{
  background: rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.09);
  border-radius: var(--radius); padding: 24px 22px; transition: var(--transition);
}
.step:hover{ background: rgba(255,255,255,.08); border-color: rgba(194,87,31,.5); }
.step .num{ font-family: var(--font-head); font-size:.85rem; color: var(--copper-light); font-weight:700; letter-spacing:.06em; }
.step h4{ font-size:1rem; margin: 10px 0 8px; color:#fff; }
.step p{ font-size:.85rem; color: rgba(255,255,255,.6); }
.step .days{ display:inline-block; margin-top:12px; font-size:.72rem; letter-spacing:.06em; text-transform:uppercase; color: var(--copper-light); border:1px solid rgba(194,87,31,.4); border-radius:999px; padding:4px 12px; }

/* ---------- Portafolio ---------- */
.portfolio{ padding: 110px 0 100px; }
.filters{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom: 40px; }
.filter-btn{
  padding: 10px 20px; border-radius: 999px; border:1px solid var(--line); background: var(--paper);
  font-size:.86rem; font-weight:600; color: var(--gray); transition: var(--transition);
}
.filter-btn:hover{ border-color: var(--copper); color: var(--copper); }
.filter-btn.active{ background: var(--ink); color:#fff; border-color: var(--ink); }

.pf-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.pf-card{
  border-radius: var(--radius); overflow:hidden; position:relative; cursor:pointer;
  border:1px solid var(--line); background:#000; transition: var(--transition);
}
.pf-card.hide{ display:none; }
.pf-card .imgwrap{ aspect-ratio: 16/10; overflow:hidden; }
.pf-card img{ width:100%; height:100%; object-fit: cover; transition: transform .6s ease; }
.pf-card:hover img{ transform: scale(1.06); }
.pf-card:hover{ box-shadow: var(--shadow); }
.pf-overlay{
  position:absolute; inset:0; display:flex; flex-direction:column; justify-content:flex-end; padding: 20px;
  background: linear-gradient(0deg, rgba(0,0,0,.86) 0%, rgba(0,0,0,.15) 55%, transparent 100%);
}
.pf-overlay .tag{ font-size:.7rem; text-transform:uppercase; letter-spacing:.1em; color: var(--copper-light); margin-bottom:6px; }
.pf-overlay h4{ color:#fff; font-size:1rem; }
.pf-overlay p{ color: rgba(255,255,255,.72); font-size:.82rem; margin-top:5px; }
.pf-zoom{
  position:absolute; top:16px; right:16px; width:38px; height:38px; border-radius:50%;
  background: rgba(255,255,255,.15); border:1px solid rgba(255,255,255,.35); backdrop-filter: blur(4px);
  display:flex; align-items:center; justify-content:center; color:#fff;
}
.pf-zoom svg{ width:16px; height:16px; }

/* Lightbox */
.lightbox{
  position:fixed; inset:0; background: rgba(10,8,6,.94); z-index: 2000;
  display:flex; align-items:center; justify-content:center; padding: 40px 20px;
  opacity:0; pointer-events:none; transition: opacity .3s ease;
}
.lightbox.open{ opacity:1; pointer-events:auto; }
.lightbox figure{ max-width: 1000px; width:100%; margin:0; }
.lightbox img{ width:100%; border-radius:10px; max-height:76vh; object-fit:contain; background:#111; }
.lightbox figcaption{ color:#fff; margin-top:16px; text-align:center; }
.lightbox figcaption .tag{ color: var(--copper-light); font-size:.75rem; letter-spacing:.1em; text-transform:uppercase; }
.lightbox figcaption h4{ margin-top:6px; font-size:1.15rem; }
.lightbox-close, .lightbox-nav{
  position:absolute; background: rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.25);
  color:#fff; width:46px; height:46px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  transition: var(--transition);
}
.lightbox-close:hover, .lightbox-nav:hover{ background: var(--copper); border-color: var(--copper); }
.lightbox-close{ top:24px; right:24px; }
.lightbox-nav svg{ width:20px; height:20px; }
.lightbox-nav.prev{ left:24px; top:50%; transform:translateY(-50%); }
.lightbox-nav.next{ right:24px; top:50%; transform:translateY(-50%); }

/* ---------- CTA banda ---------- */
.cta-band{
  background: linear-gradient(120deg, var(--copper-dark), var(--copper));
  color:#fff; padding: 60px 0; text-align:center;
}
.cta-band h2{ font-size: clamp(1.5rem,3vw,2.1rem); }
.cta-band p{ margin-top:12px; color: rgba(255,255,255,.88); }
.cta-band .hero-cta{ justify-content:center; margin-top:26px; }

/* ---------- Contacto ---------- */
.contact{ padding: 110px 0; background: var(--paper); }
.contact-grid{ display:grid; grid-template-columns: .9fr 1.1fr; gap: 60px; }
.contact-info{ display:flex; flex-direction:column; gap:20px; }
.info-item{ display:flex; gap:16px; align-items:flex-start; padding:20px; border:1px solid var(--line); border-radius: var(--radius); background: var(--cream); }
.info-item .ic{ width:44px; height:44px; border-radius:12px; background: var(--ink); color: var(--copper-light); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.info-item h4{ font-size:.9rem; margin-bottom:4px; }
.info-item p, .info-item a{ font-size:.9rem; color: var(--gray); }
.info-item a:hover{ color: var(--copper); }

.contact-form{ background: var(--ink); border-radius: var(--radius); padding: 40px; color:#fff; }
.contact-form h3{ font-size:1.25rem; margin-bottom:8px; }
.contact-form > p{ color: rgba(255,255,255,.6); font-size:.9rem; margin-bottom:26px; }
.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap:16px; margin-bottom:16px; }
.form-field{ display:flex; flex-direction:column; gap:8px; }
.form-field.full{ grid-column: 1 / -1; }
.form-field label{ font-size:.78rem; color: rgba(255,255,255,.65); letter-spacing:.04em; text-transform:uppercase; }
.form-field input, .form-field select, .form-field textarea{
  background: rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.16); border-radius:10px;
  padding: 12px 14px; color:#fff; font-family: inherit; font-size:.92rem; transition: var(--transition);
}
.form-field select option{ color:#111; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus{ outline:none; border-color: var(--copper); background: rgba(255,255,255,.1); }
.form-field textarea{ resize: vertical; min-height:100px; }
.contact-form .btn{ width:100%; margin-top:6px; }
.form-note{ font-size:.76rem; color: rgba(255,255,255,.45); margin-top:14px; text-align:center; }

/* ---------- Footer ---------- */
.site-footer{ background: #100e0c; color: rgba(255,255,255,.65); padding: 60px 0 26px; }
.footer-top{ display:grid; grid-template-columns: 1.3fr 1fr 1fr; gap:40px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,.08); }
.footer-brand .brand{ color:#fff; }
.footer-brand p{ margin-top:16px; font-size:.9rem; max-width:280px; color: rgba(255,255,255,.55); }
.footer-col h5{ color:#fff; font-size:.85rem; letter-spacing:.08em; text-transform:uppercase; margin-bottom:18px; }
.footer-col ul li{ margin-bottom:10px; font-size:.9rem; }
.footer-col ul li a:hover{ color: var(--copper-light); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:24px; flex-wrap:wrap; gap:12px; font-size:.82rem; }
.footer-social{ display:flex; gap:10px; }
.footer-social span{
  width:36px; height:36px; border-radius:50%; border:1px solid rgba(255,255,255,.18);
  display:flex; align-items:center; justify-content:center; color: rgba(255,255,255,.7);
}
.footer-social span svg{ width:16px; height:16px; }

/* ---------- Floating WhatsApp ---------- */
.wa-float{
  position: fixed; bottom: 26px; right: 26px; z-index: 900;
  width: 60px; height:60px; border-radius:50%; background:#25D366; color:#fff;
  display:flex; align-items:center; justify-content:center; box-shadow: 0 12px 28px -10px rgba(0,0,0,.5);
  animation: pulse 2.6s infinite;
}
.wa-float svg{ width:28px; height:28px; }
@keyframes pulse{ 0%{ box-shadow: 0 0 0 0 rgba(37,211,102,.55), 0 12px 28px -10px rgba(0,0,0,.5);} 70%{ box-shadow: 0 0 0 14px rgba(37,211,102,0), 0 12px 28px -10px rgba(0,0,0,.5);} 100%{ box-shadow: 0 0 0 0 rgba(37,211,102,0), 0 12px 28px -10px rgba(0,0,0,.5);} }

/* ---------- Reveal on scroll ---------- */
.reveal{ opacity:0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ---------- Responsive ---------- */
@media (max-width: 1020px){
  .about-top{ grid-template-columns:1fr; gap:40px; }
  .services-grid{ grid-template-columns: repeat(2,1fr); }
  .process-track{ grid-template-columns: repeat(2,1fr); }
  .pf-grid{ grid-template-columns: repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; gap:44px; }
  .footer-top{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 760px){
  .main-nav, .header-actions .btn-ghost{ display:none; }
  .nav-toggle{ display:flex; }
  .main-nav.open{
    display:flex; position:fixed; top:0; right:0; bottom:0; width:78%; max-width:320px;
    background: var(--ink); flex-direction:column; align-items:flex-start; gap:0; padding: 100px 30px 30px; z-index:1001;
    box-shadow: -20px 0 40px rgba(0,0,0,.4);
  }
  .main-nav.open a{ color:#fff; padding:14px 0; width:100%; border-bottom:1px solid rgba(255,255,255,.08); font-size:1rem; }
  .value-list{ grid-template-columns:1fr; }
  .services-grid{ grid-template-columns:1fr; }
  .process-track{ grid-template-columns:1fr; }
  .pf-grid{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; gap:30px; }
  .form-row{ grid-template-columns:1fr; }
  .hero-stats{ gap:24px; }
  .contact-form{ padding:28px 22px; }
}
.nav-overlay{ display:none; position:fixed; inset:0; background: rgba(0,0,0,.5); z-index:1000; }
.nav-overlay.show{ display:block; }