/**
 * MOLBER — UI/UX v1.1.2
 * Diseño minimalista premium inspirado en Apple / Anthropic
 */

/* ── TOKENS ADICIONALES ─────────────────────────────── */
:root {
  --ink:        #0a0a0a;
  --ink-2:      #3d3d3d;
  --ink-3:      #6e6e73;
  --surface-0:  #ffffff;
  --surface-1:  #f5f5f7;
  --surface-2:  #e8e8ed;
  --accent:     #af5231;
  --accent-h:   #8f3f23;
  --ocean:      #23686d;
  --navy:       #112b45;
  --radius-card:1.25rem;
  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── BODY / BASE ─────────────────────────────────────── */
body {
  background: var(--surface-0);
  color: var(--ink);
  font-family: var(--font-family-sans);
  -webkit-font-smoothing: antialiased;
  opacity: 0;
  animation: bodyIn .5s ease .05s forwards;
}
@keyframes bodyIn { to { opacity:1; } }

/* ── SCROLL PROGRESS ─────────────────────────────────── */
#scroll-progress-bar {
  position: fixed; top:0; left:0; height:2px; width:0;
  background: linear-gradient(90deg, var(--accent), var(--ocean));
  z-index:9999; transition: width .1s linear;
}

/* ── SCROLL TO TOP ───────────────────────────────────── */
#scrollToTop {
  position:fixed; bottom:100px; right:1.5rem;
  width:40px; height:40px; border-radius:50%;
  background:var(--navy); color:#fff; border:none;
  display:none; align-items:center; justify-content:center;
  font-size:1rem; cursor:pointer; z-index:900;
  box-shadow:0 4px 16px rgba(17,43,69,.3);
  transition: transform .2s var(--ease-out), background .2s;
}
#scrollToTop:hover { background:var(--accent); transform:translateY(-3px); }

/* ── HEADER ──────────────────────────────────────────── */
.header {
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  transition: background .3s, box-shadow .3s;
}
.header.scrolled {
  background: rgba(255,255,255,.97);
  box-shadow: 0 1px 0 rgba(0,0,0,.08), 0 4px 24px rgba(0,0,0,.06);
}
.nav-link {
  color: var(--ink-2) !important;
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: -.01em;
  padding: .4rem .6rem;
  border-radius: .5rem;
  transition: color .15s, background .15s;
  position: relative;
}
.nav-link:hover { color: var(--accent) !important; background: rgba(175,82,49,.06); }
.nav-link.active, .nav-link.scrollspy-active { color: var(--accent) !important; font-weight:600; }
.logo img { height:44px; }

/* ── HERO ────────────────────────────────────────────── */
.hero-xl { min-height:92vh; }
.hero-overlay {
  background: linear-gradient(160deg,
    rgba(10,10,10,.78) 0%,
    rgba(17,43,69,.7)  55%,
    rgba(35,104,109,.55) 100%);
}
.hero::after {
  content:''; position:absolute; inset:0; z-index:2; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size:56px 56px;
}
.hero-content { z-index:4; }
.hero-overlay  { z-index:3; }
.hero-bg       { z-index:1; }

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.08;
  color: #fff;
  text-shadow: none;
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255,255,255,.78);
  font-weight: 400;
  max-width: 600px;
  margin: 1.25rem auto 2rem;
}

/* Hero badge */
.hero .badge-highlight {
  background: rgba(175,82,49,.18);
  color: #ffb899;
  border: 1px solid rgba(175,82,49,.4);
  font-size:.7rem; letter-spacing:.1em;
  backdrop-filter:blur(6px);
}

/* Pulse glow */
.pulse-glow { animation: pGlow 2.5s ease infinite; }
@keyframes pGlow {
  0%   { box-shadow:0 0 0 0 rgba(175,82,49,.55); }
  65%  { box-shadow:0 0 0 14px rgba(175,82,49,0); }
  100% { box-shadow:0 0 0 0 rgba(175,82,49,0); }
}

/* Outline light btn */
.btn-outline-light {
  background:transparent; color:#fff;
  border:1.5px solid rgba(255,255,255,.55);
}
.btn-outline-light:hover {
  background:rgba(255,255,255,.1);
  border-color:#fff; color:#fff;
}

/* ── BUTTONS ─────────────────────────────────────────── */
.btn {
  font-weight:600; letter-spacing:-.01em;
  border-radius:.75rem;
  transition: transform .18s var(--ease-out), box-shadow .18s, background .18s;
}
.btn:hover { transform:translateY(-2px) scale(1.01); }
.btn:active{ transform:translateY(0) scale(.99); }
.btn-primary {
  background:var(--accent); color:#fff; border-color:var(--accent);
}
.btn-primary:hover { background:var(--accent-h); border-color:var(--accent-h); color:#fff; }

/* ── SECTION SYSTEM ──────────────────────────────────── */
/* Todos los sections: fondo blanco con separadores mínimos */
.section { padding: 6rem 0; }

/* Secciones con bg claro alternado */
#rentabilidad,
#evidencia,
#contacto {
  background: var(--surface-1);
  border-top: 1px solid var(--surface-2);
  border-bottom: 1px solid var(--surface-2);
}

#ingenieria { background: var(--surface-0); }

section.section.bg-light.section-padding.relative.overflow-hidden {
  background: var(--surface-1) !important;
  border-top: 1px solid var(--surface-2);
  border-bottom: 1px solid var(--surface-2);
}

/* Tecnología - oscura */
#tecnologia {
  background: var(--navy);
  border:none;
}
#tecnologia .absolute.inset-0 {
  background-image: url('https://images.unsplash.com/photo-1581092160562-40aa08e78837?q=80&w=2000&auto=format&fit=crop') !important;
  background-size:cover; background-position:center;
  opacity:.07 !important;
}

/* ── SECTION LABELS & TITLES ─────────────────────────── */
.badge {
  display:inline-flex; align-items:center;
  padding:.28rem .9rem; border-radius:100px;
  font-size:.72rem; font-weight:700; letter-spacing:.08em;
  text-transform:uppercase;
}
.badge-primary {
  background:rgba(17,43,69,.08);
  color:var(--navy);
  border:1.5px solid rgba(17,43,69,.18);
}
.badge-secondary {
  background:rgba(35,104,109,.1);
  color:var(--ocean);
  border:1.5px solid rgba(35,104,109,.25);
}
.badge-highlight {
  background:rgba(175,82,49,.1);
  color:var(--accent);
  border:1.5px solid rgba(175,82,49,.25);
}
/* sobre fondo oscuro */
#tecnologia .badge-highlight {
  background:rgba(175,82,49,.25);
  color:#ffb899;
  border-color:rgba(175,82,49,.5);
}

.section-label {
  font-size:.72rem; font-weight:700; letter-spacing:.12em;
  text-transform:uppercase; color:var(--accent);
  display:block; margin-bottom:.75rem;
}

/* Headings limios */
h2.section-title, .section-heading {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 1rem;
}
#tecnologia h2 { color:#f5f5f7; }
#tecnologia h3 { color:#f5f5f7; }

.section-body {
  font-size:1.1rem; color:var(--ink-3); line-height:1.7;
  max-width:560px;
}
#tecnologia .section-body,
#tecnologia p { color:rgba(255,255,255,.65) !important; }

/* Eyebrow accent line */
.eyebrow-line {
  width:40px; height:3px;
  background:var(--accent);
  border-radius:2px; margin:0 0 1.25rem;
  display:block;
}
.text-center .eyebrow-line { margin:0 auto 1.25rem; }

/* ── FEATURE LIST (rentabilidad) ─────────────────────── */
.feature-list { list-style:none; padding:0; margin:0; }
.feature-list li {
  display:flex; align-items:flex-start; gap:.75rem;
  padding:.75rem 0;
  border-bottom:1px solid var(--surface-2);
  color:var(--ink-2); font-size:1rem; line-height:1.5;
}
.feature-list li:last-child { border:none; }
.feature-list li i { color:var(--accent); margin-top:2px; font-size:1.1rem; flex-shrink:0; }

/* ── STATS CARD (sobre bg claro) ─────────────────────── */
.stats-card.glass-panel {
  background:#fff !important;
  border:1px solid var(--surface-2) !important;
  box-shadow:0 4px 32px rgba(0,0,0,.06) !important;
  border-radius:var(--radius-card) !important;
  padding:2rem !important;
}
.stat-row {
  display:flex; justify-content:space-between; align-items:center;
  padding:.875rem 0;
  border-bottom:1px solid var(--surface-2);
}
.stat-row:last-child { border:none; }
.stat-row span:first-child { color:var(--ink-2); font-size:.95rem; }
.highlight-row {
  background:rgba(22,163,74,.06);
  padding:.875rem 1rem; border-radius:.75rem; border:none !important;
  margin-top:.5rem;
}
.text-success { color:#16a34a !important; font-weight:700; }
.text-danger  { color:#dc2626 !important; font-weight:700; }

/* ── PREMIUM CARDS (superioridad) ────────────────────── */
.premium-card {
  background:#fff !important;
  border:1px solid var(--surface-2) !important;
  border-radius:var(--radius-card) !important;
  padding:2rem !important;
  box-shadow:0 2px 16px rgba(0,0,0,.04) !important;
  transition:transform .3s var(--ease-out), box-shadow .3s, border-color .3s !important;
  position:relative; overflow:hidden;
}
.premium-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg, var(--navy), var(--accent));
  transform:scaleX(0); transform-origin:left;
  transition:transform .35s var(--ease-out);
}
.premium-card:hover { transform:translateY(-6px) !important; box-shadow:0 16px 40px rgba(0,0,0,.09) !important; border-color:rgba(175,82,49,.2) !important; }
.premium-card:hover::before { transform:scaleX(1); }
.premium-card h4 { color:var(--ink) !important; font-size:1.1rem; font-weight:700; margin-bottom:.5rem; }
.premium-card p  { color:var(--ink-3) !important; font-size:.95rem; line-height:1.65; }

.premium-icon-wrapper {
  width:52px; height:52px; border-radius:.875rem;
  background:rgba(17,43,69,.07) !important;
  color:var(--navy) !important;
  display:flex; align-items:center; justify-content:center;
  font-size:1.5rem; margin-bottom:1.25rem;
  border:1px solid rgba(17,43,69,.1) !important;
  transition:transform .25s var(--ease-out);
}
.premium-card:hover .premium-icon-wrapper { transform:scale(1.08) rotate(4deg); }

/* ── TECH TABLE ─────────────────────────────────────── */
.tech-table {
  width:100%; border-collapse:collapse;
  border-radius:var(--radius-card); overflow:hidden;
}
.tech-table th {
  background:var(--navy); color:#fff;
  padding:.875rem 1.25rem; font-size:.85rem;
  font-weight:600; letter-spacing:.02em; text-align:left;
}
.tech-table td {
  padding:.875rem 1.25rem; color:var(--ink-2);
  border-bottom:1px solid var(--surface-2); font-size:.95rem;
}
.tech-table tbody tr:last-child td { border:none; }
.tech-table tbody tr:hover td { background:rgba(17,43,69,.03); }

/* ── CASE CARDS (evidencia) ──────────────────────────── */
.case-card {
  background:#fff !important;
  border:1px solid var(--surface-2) !important;
  border-radius:var(--radius-card) !important;
  overflow:hidden;
  box-shadow:0 2px 16px rgba(0,0,0,.05) !important;
  transition:transform .3s var(--ease-out), box-shadow .3s !important;
}
.case-card:hover { transform:translateY(-6px) !important; box-shadow:0 20px 44px rgba(0,0,0,.1) !important; }
.case-header { padding:1.75rem 1.75rem 1.25rem; }
.case-header.bg-primary { background:var(--navy) !important; }
.case-header.bg-highlight { background:var(--accent) !important; }
.case-header h3 { color:#fff !important; font-size:1.2rem; font-weight:700; }
.case-body { padding:1.5rem 1.75rem 1.75rem; background:#fff !important; }
.case-body p { color:var(--ink-2) !important; font-size:.95rem; line-height:1.65; margin-bottom:1rem; }
.case-body .flex { color:#16a34a !important; font-weight:600; font-size:.9rem; }

/* ── GLASS DARK (ingeniería panel) ───────────────────── */
.glass-panel-dark {
  background:linear-gradient(135deg, #0d2236, #112b45) !important;
  border:1px solid rgba(255,255,255,.08) !important;
  border-radius:var(--radius-card) !important;
  box-shadow:0 16px 48px rgba(0,0,0,.2) !important;
}
.glass-panel-dark h3 { color:#f5f5f7 !important; font-size:1.4rem; font-weight:700; }
.glass-panel-dark p  { color:rgba(255,255,255,.62) !important; line-height:1.7; }
.glass-panel-dark .text-highlight { color:#ffb899 !important; }

/* ── CONTACT SECTION — REDISEÑADO ────────────────────── */
#contacto { padding:5rem 0 6rem; }

.contact-wrapper {
  display:grid;
  grid-template-columns:1fr 1.35fr;
  gap:3rem;
  align-items:start;
  max-width:960px;
  margin:0 auto;
  padding:0 1.5rem;
}
@media(max-width:768px) {
  .contact-wrapper { grid-template-columns:1fr; gap:2rem; padding:0 1rem; }
}

/* LEFT PANEL — info */
.contact-info-panel {
  padding:2.5rem 2rem;
  background:#fff;
  border:1px solid var(--surface-2);
  border-radius:var(--radius-card);
  box-shadow:0 2px 16px rgba(0,0,0,.05);
}
.contact-info-panel .info-tag {
  font-size:.7rem; font-weight:700; letter-spacing:.12em;
  text-transform:uppercase; color:var(--accent); display:block; margin-bottom:.75rem;
}
.contact-info-panel h2 {
  font-size:1.7rem; font-weight:800; letter-spacing:-.03em;
  color:var(--ink); line-height:1.15; margin-bottom:.75rem;
}
.contact-info-panel .contact-desc {
  font-size:.97rem; color:var(--ink-3); line-height:1.7; margin-bottom:1.75rem;
}
.contact-channel {
  display:flex; align-items:center; gap:.875rem;
  padding:.875rem 0;
  border-bottom:1px solid var(--surface-2);
}
.contact-channel:last-child { border:none; }
.contact-channel .ch-icon {
  width:40px; height:40px; border-radius:.75rem;
  background:rgba(17,43,69,.07);
  display:flex; align-items:center; justify-content:center;
  font-size:1.1rem; color:var(--navy); flex-shrink:0;
}
.contact-channel .ch-label { font-size:.78rem; color:var(--ink-3); margin-bottom:.1rem; }
.contact-channel .ch-value { font-size:.95rem; color:var(--ink); font-weight:500; }
.contact-channel a.ch-value { color:var(--navy); transition:color .15s; }
.contact-channel a.ch-value:hover { color:var(--accent); }

/* RIGHT PANEL — formulario */
.contact-form-panel {
  background:#fff;
  border:1px solid var(--surface-2);
  border-radius:var(--radius-card);
  box-shadow:0 2px 16px rgba(0,0,0,.05);
  padding:2.5rem 2rem;
}
.contact-form-panel h3 {
  font-size:1.3rem; font-weight:800; letter-spacing:-.025em;
  color:var(--ink); margin-bottom:.4rem;
}
.contact-form-panel .form-sub {
  font-size:.88rem; color:var(--ink-3); margin-bottom:1.75rem;
}

/* Input groups limpios */
.field-group {
  margin-bottom:1.25rem;
}
.field-group label {
  display:block; font-size:.8rem; font-weight:600;
  color:var(--ink-2); margin-bottom:.4rem; letter-spacing:.01em;
}
.field-group input,
.field-group textarea,
.field-group select {
  width:100%;
  padding:.75rem 1rem;
  background:var(--surface-1);
  border:1.5px solid var(--surface-2);
  border-radius:.75rem;
  font-size:.97rem; color:var(--ink);
  transition:border-color .2s, box-shadow .2s, background .2s;
  outline:none;
}
.field-group input:focus,
.field-group textarea:focus,
.field-group select:focus {
  background:#fff;
  border-color:var(--navy);
  box-shadow:0 0 0 3px rgba(17,43,69,.1);
}
.field-group input::placeholder,
.field-group textarea::placeholder { color:var(--ink-3); }
.field-group textarea { min-height:110px; resize:vertical; }

.field-row {
  display:grid; grid-template-columns:1fr 1fr; gap:1rem;
}
@media(max-width:480px) { .field-row { grid-template-columns:1fr; } }

.submit-btn {
  width:100%; padding:.9rem 1.5rem;
  background:var(--navy); color:#fff;
  border:none; border-radius:.875rem;
  font-size:1rem; font-weight:700; letter-spacing:-.01em;
  cursor:pointer; display:flex; align-items:center; justify-content:center; gap:.5rem;
  transition:background .2s, transform .18s var(--ease-out), box-shadow .2s;
  margin-top:.25rem;
}
.submit-btn:hover {
  background:var(--accent);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(175,82,49,.3);
}
.submit-btn:active { transform:translateY(0); }
.submit-btn:disabled { opacity:.55; cursor:not-allowed; transform:none; box-shadow:none; }

/* HIDE original contact layout */
.glass-panel-contact { display:none !important; }

/* ── ANIMACIONES SCROLL ───────────────────────────────── */
.animate-on-scroll {
  opacity:0; transform:translateY(32px);
  transition: opacity .75s var(--ease-out), transform .75s var(--ease-out);
}
.animate-on-scroll.scrolled-in { opacity:1; transform:none; }
.animate-slide-left {
  opacity:0; transform:translateX(-36px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.animate-slide-right {
  opacity:0; transform:translateX(36px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.animate-slide-left.scrolled-in,
.animate-slide-right.scrolled-in { opacity:1; transform:none; }

/* Hero entrada */
.animate-fade-in         { opacity:0; animation: hFade .9s var(--ease-out) .2s forwards; }
.animate-slide-up        { opacity:0; animation: hUp .9s var(--ease-out) .35s forwards; }
.animate-slide-up-delayed{ opacity:0; animation: hUp .9s var(--ease-out) .55s forwards; }
.animate-fade-in-delayed { opacity:0; animation: hFade .9s var(--ease-out) .72s forwards; }

@keyframes hFade { to { opacity:1; } }
@keyframes hUp   { from{opacity:0;transform:translateY(24px);} to{opacity:1;transform:none;} }

/* ── FOOTER ───────────────────────────────────────────── */
.footer {
  background:linear-gradient(180deg, #0b1e2d, #071421);
  border-top:1px solid rgba(255,255,255,.06);
}
.footer-col h4 {
  font-size:.72rem; font-weight:700; letter-spacing:.1em;
  text-transform:uppercase; color:rgba(255,255,255,.5) !important;
  margin-bottom:1.25rem;
}
.footer-links a { color:rgba(255,255,255,.5) !important; font-size:.9rem; transition:color .15s; }
.footer-links a:hover { color:#fff !important; }
.footer div.flex a { transition:color .2s, transform .2s; display:inline-block; }
.footer div.flex a:hover { color:var(--accent) !important; transform:translateY(-2px); }
.footer-bottom { border-top:1px solid rgba(255,255,255,.06) !important; color:rgba(255,255,255,.35) !important; }
.footer-bottom a:hover { color:var(--accent) !important; }
.footer-about { color:rgba(255,255,255,.5) !important; font-size:.9rem; line-height:1.65; }

/* ── WHATSAPP ──────────────────────────────────────────── */
.wa-floating-btn { animation: waBounce 4s ease 3s infinite; }
@keyframes waBounce {
  0%,88%,100%{ transform:translateY(0) scale(1); }
  92%         { transform:translateY(-8px) scale(1.06); }
  96%         { transform:translateY(-3px) scale(1.02); }
}
.wa-floating-btn:hover { animation:none; transform:scale(1.1) translateY(-4px) !important; }

/* ── SUCCESS MODAL ─────────────────────────────────────── */
#successModal .bg-white {
  border-radius:1.5rem;
  box-shadow:0 32px 80px rgba(0,0,0,.25);
}

/* ── COOKIE BANNER ─────────────────────────────────────── */
#cookie-banner {
  background:rgba(10,10,10,.96) !important;
  backdrop-filter:blur(16px) !important;
  border-top:1px solid rgba(255,255,255,.08) !important;
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media(max-width:768px) {
  .section { padding:4rem 0; }
  .hero-xl  { min-height:80vh; }
  #scrollToTop { bottom:80px; right:1rem; }
  .animate-on-scroll, .animate-slide-left, .animate-slide-right {
    transform:translateY(20px); transition-duration:.55s;
  }
}