/* ============================================================
   HDB SOLUCIONES — design tokens
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800;900&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* color */
  --ink:        #0c0e10;   /* near-black, primary dark surface */
  --ink-soft:   #14171a;   /* slightly lifted dark panel */
  --ink-line:   #2a2f34;   /* hairlines on dark */
  --paper:      #eef0ef;   /* cool off-white, "aluminum paper" */
  --paper-2:    #e2e5e3;   /* slightly deeper paper for panels */
  --steel:      #4a5057;   /* secondary text on light */
  --steel-soft: #767d83;   /* tertiary text */
  --aluminum:   #b9c0c6;   /* metal hairlines on light */
  --red:        #e1241b;   /* signal red — HDB red / remove-before-flight */
  --red-dim:    #9c1912;
  --white:      #ffffff;

  /* type */
  --f-display: 'Big Shoulders Display', sans-serif;
  --f-body:    'IBM Plex Sans', sans-serif;
  --f-mono:    'IBM Plex Mono', monospace;

  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

::selection{ background:var(--red); color:var(--white); }

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--red);
  outline-offset:3px;
}

/* ============================================================
   TYPE SCALE
   ============================================================ */
.eyebrow{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--red);
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--red);
  display:inline-block;
}

h1,h2,h3,h4{
  font-family:var(--f-display);
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.01em;
  margin:0;
  line-height:.96;
}

h1{ font-size:clamp(2.6rem, 6.2vw, 5.2rem); font-weight:900; }
h2{ font-size:clamp(2rem, 4vw, 3.1rem); }
h3{ font-size:clamp(1.3rem, 2.2vw, 1.7rem); }
h4{ font-size:1.05rem; letter-spacing:.06em; }

p{ margin:0 0 1em; }
.lede{
  font-size:clamp(1.05rem,1.6vw,1.25rem);
  color:var(--steel);
  max-width:46ch;
}
.lede.on-dark{ color:#b8bcbf; }

.mono{ font-family:var(--f-mono); }
.code-tag{
  font-family:var(--f-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  color:var(--steel-soft);
}

/* ============================================================
   NAV
   ============================================================ */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(238,240,239,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--aluminum);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 28px;
  max-width:var(--container);
  margin:0 auto;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:var(--f-display);
  font-weight:800;
  font-size:1.35rem;
  letter-spacing:.02em;
  text-transform:uppercase;
}
.brand .dot{ width:8px; height:8px; background:var(--red); border-radius:1px; transform:rotate(45deg); }
.brand small{
  display:block;
  font-family:var(--f-mono);
  font-weight:400;
  font-size:9.5px;
  letter-spacing:.18em;
  color:var(--steel-soft);
  text-transform:uppercase;
  margin-top:1px;
}

.nav-links{ display:flex; align-items:center; gap:32px; }
.nav-links a{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--steel);
  padding:6px 0;
  border-bottom:1px solid transparent;
  transition:color .15s, border-color .15s;
}
.nav-links a:hover{ color:var(--ink); border-color:var(--aluminum); }
.nav-links a.active{ color:var(--ink); border-color:var(--red); }
.nav-cta{
  font-family:var(--f-mono) !important;
  background:var(--ink); color:var(--paper) !important;
  padding:9px 16px !important;
  border:1px solid var(--ink);
  border-bottom:1px solid var(--ink) !important;
}
.nav-cta:hover{ background:var(--red); border-color:var(--red); color:var(--white) !important; }

.nav-toggle{
  display:none;
  background:none; border:1px solid var(--ink); border-radius:2px;
  width:38px; height:34px; position:relative;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after{
  content:""; position:absolute; left:9px; right:9px; height:2px; background:var(--ink);
}
.nav-toggle span{ top:16px; }
.nav-toggle::before{ top:10px; }
.nav-toggle::after{ top:22px; }

@media (max-width: 860px){
  .nav-links{
    position:fixed; inset:64px 0 auto 0;
    background:var(--paper);
    flex-direction:column; align-items:flex-start;
    gap:0;
    border-bottom:1px solid var(--aluminum);
    max-height:0; overflow:hidden;
    transition:max-height .25s ease;
  }
  .nav-links.open{ max-height:340px; }
  .nav-links a{ width:100%; padding:16px 28px; border-bottom:1px solid var(--paper-2); }
  .nav-links a.active{ border-left:3px solid var(--red); }
  .nav-cta{ margin:14px 28px; display:inline-block; }
  .nav-toggle{ display:block; }
}

/* ============================================================
   SECTION SCAFFOLD
   ============================================================ */
section{ position:relative; }
.section{ padding:96px 0; }
.section--tight{ padding:64px 0; }
.section--dark{ background:var(--ink); color:var(--paper); }
.section--panel{ background:var(--paper-2); }

.section-head{
  display:flex; justify-content:space-between; align-items:flex-end; gap:40px;
  margin-bottom:52px; flex-wrap:wrap;
}
.section-head h2{ margin-top:14px; }
.section--dark .lede{ color:#b8bcbf; }

.hr{
  border:0; border-top:1px solid var(--aluminum);
  margin:0;
}
.section--dark .hr{ border-top-color:var(--ink-line); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--f-mono);
  font-size:13px; letter-spacing:.08em; text-transform:uppercase;
  padding:14px 24px;
  border:1px solid var(--ink);
  background:transparent; color:var(--ink);
  transition:background .15s, color .15s, border-color .15s, transform .15s;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--red); border-color:var(--red); color:var(--white); }
.btn-primary:hover{ background:var(--red-dim); border-color:var(--red-dim); }
.btn-ghost-dark{ border-color:#3a4046; color:var(--paper); }
.btn-ghost-dark:hover{ border-color:var(--paper); }
.btn-arrow::after{ content:"→"; transition:transform .15s; }
.btn-arrow:hover::after{ transform:translateX(3px); }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  background:var(--ink); color:var(--paper);
  padding:64px 0 0;
  overflow:hidden;
}
.hero-grid{
  display:grid; grid-template-columns:1.05fr .95fr; gap:48px; align-items:center;
}
.hero-copy h1{ color:var(--white); margin-top:18px; }
.hero-copy h1 em{ font-style:normal; color:var(--red); }
.hero-actions{ display:flex; gap:16px; margin-top:36px; flex-wrap:wrap; }
.hero-meta{
  display:flex; gap:28px; margin-top:56px; padding-top:24px;
  border-top:1px solid var(--ink-line);
  font-family:var(--f-mono); font-size:12px; letter-spacing:.06em; color:#8b9197;
  flex-wrap:wrap;
}
.hero-meta b{ color:var(--paper); display:block; font-size:14px; margin-bottom:3px; }

.hero-frame{
  position:relative;
  border:1px solid var(--ink-line);
  padding:10px;
  align-self:stretch;
}
.hero-frame img{ width:100%; height:100%; object-fit:cover; aspect-ratio:4/5; }
.hero-frame .corner{
  position:absolute; width:14px; height:14px;
  border:1.5px solid var(--red);
}
.hero-frame .corner.tl{ top:-1px; left:-1px; border-right:0; border-bottom:0; }
.hero-frame .corner.br{ bottom:-1px; right:-1px; border-left:0; border-top:0; }
.hero-frame figcaption{
  position:absolute; left:20px; bottom:20px;
  background:var(--ink); padding:8px 12px;
  font-family:var(--f-mono); font-size:11px; letter-spacing:.06em;
  color:var(--paper); border:1px solid var(--ink-line);
}

@media (max-width: 940px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-frame{ order:-1; max-width:420px; margin:0 auto; }
}

/* ============================================================
   MARQUEE / TICKER
   ============================================================ */
.ticker{
  background:var(--red); color:var(--white);
  overflow:hidden; white-space:nowrap;
  border-top:1px solid var(--ink); border-bottom:1px solid var(--ink);
}
.ticker-track{
  display:inline-flex;
  animation:scroll-left 28s linear infinite;
}
.ticker span{
  font-family:var(--f-mono); font-size:12.5px; letter-spacing:.12em; text-transform:uppercase;
  padding:11px 32px;
  display:inline-flex; align-items:center; gap:32px;
}
.ticker span::after{ content:"//"; opacity:.6; }
@keyframes scroll-left{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}

/* ============================================================
   ABOUT / QUIENES SOMOS
   ============================================================ */
.about-grid{
  display:grid; grid-template-columns:.9fr 1.1fr; gap:64px; align-items:start;
}
.about-photo{
  position:relative; border:1px solid var(--aluminum);
}
.about-photo img{ aspect-ratio:1/1; object-fit:cover; }
.about-photo .tag{
  position:absolute; top:14px; left:14px;
  background:var(--ink); color:var(--paper);
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.08em;
  padding:6px 10px;
}
.stat-row{ display:flex; gap:40px; margin-top:36px; flex-wrap:wrap; }
.stat{ }
.stat b{ font-family:var(--f-display); font-size:2.4rem; display:block; line-height:1; }
.stat span{ font-family:var(--f-mono); font-size:11.5px; color:var(--steel-soft); letter-spacing:.06em; text-transform:uppercase; }

@media (max-width: 860px){
  .about-grid{ grid-template-columns:1fr; gap:36px; }
}

/* ============================================================
   SERVICE CARDS (overview grid on Home)
   ============================================================ */
.svc-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--aluminum);
  border:1px solid var(--aluminum);
}
.svc-card{
  background:var(--paper);
  padding:32px 26px;
  display:flex; flex-direction:column; gap:14px; min-height:240px;
}
.svc-card .num{ font-family:var(--f-mono); font-size:11px; color:var(--steel-soft); }
.svc-card h3{ text-transform:none; font-weight:700; }
.svc-card p{ color:var(--steel); font-size:14.5px; margin:0; flex:1; }
.svc-card .icon{ width:30px; height:30px; }
.svc-card .icon svg{ width:100%; height:100%; }
.svc-card a.more{
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--red); display:inline-flex; gap:6px; align-items:center;
}
@media (max-width: 940px){ .svc-grid{ grid-template-columns:repeat(2,1fr);} }
@media (max-width: 560px){ .svc-grid{ grid-template-columns:1fr;} }

/* ============================================================
   FLAGSHIP / SIMULATOR TEASER (Home)
   ============================================================ */
.flagship{
  background:var(--ink); color:var(--paper);
  padding:96px 0;
  position:relative;
}
.flagship-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.flagship-photo{ position:relative; border:1px solid var(--ink-line); }
.flagship-photo img{ aspect-ratio:4/5; object-fit:cover; }
.flagship-list{ list-style:none; margin:28px 0 0; padding:0; display:grid; gap:11px; }
.flagship-list li{
  display:flex; gap:12px; align-items:flex-start;
  font-size:14.5px; color:#c7cbcd;
}
.flagship-list li::before{
  content:""; width:6px; height:6px; background:var(--red); margin-top:7px; flex-shrink:0;
}
.flagship .btn-primary{ margin-top:34px; }

@media (max-width: 940px){
  .flagship-grid{ grid-template-columns:1fr; }
  .flagship-photo{ max-width:420px; }
}

/* ============================================================
   CALLOUT DIAGRAM (signature element)
   ============================================================ */
.callout{
  position:relative;
  border:1px solid var(--ink-line);
  background:var(--ink-soft);
}
.callout img{ width:100%; display:block; }
.callout-pin{
  position:absolute;
  display:flex; align-items:center; gap:8px;
}
.callout-pin .dot{
  width:8px; height:8px; border:1.5px solid var(--red); border-radius:50%;
  background:var(--ink); flex-shrink:0;
}
.callout-pin .dot::after{
  content:""; position:absolute; width:4px; height:4px; background:var(--red); border-radius:50%;
  top:1px; left:1px;
}
.callout-pin .label{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.05em;
  background:rgba(12,14,16,.88); border:1px solid var(--ink-line);
  padding:5px 9px; color:var(--paper); white-space:nowrap;
}
.callout-pin .label b{ color:var(--red); margin-right:6px; }
.callout-pin.line::before{
  content:""; position:absolute; height:1px; background:var(--ink-line);
}
.callout-legend{
  display:none;
  list-style:none; margin:0; padding:18px 18px 4px;
  grid-template-columns:1fr 1fr; gap:10px 18px;
  border-top:1px solid var(--ink-line);
}
.callout-legend li{
  font-family:var(--f-mono); font-size:11.5px; color:#c7cbcd; display:flex; gap:8px;
}
.callout-legend b{ color:var(--red); flex-shrink:0; }
@media (max-width: 600px){
  .callout-pin .label{ display:none; }
  .callout-legend{ display:grid; }
}

/* ============================================================
   GALLERY (Trabajos page — product photos)
   ============================================================ */
.gallery{
  display:grid; grid-template-columns:repeat(6,1fr); grid-auto-rows:140px; gap:10px;
}
.gallery a{ display:block; overflow:hidden; position:relative; border:1px solid var(--aluminum); }
.gallery img{ width:100%; height:100%; object-fit:cover; transition:transform .35s ease; }
.gallery a:hover img{ transform:scale(1.05); }
.g-1{ grid-column:span 3; grid-row:span 2; }
.g-2{ grid-column:span 3; grid-row:span 2; }
.g-3{ grid-column:span 2; grid-row:span 2; }
.g-4{ grid-column:span 2; grid-row:span 2; }
.g-5{ grid-column:span 2; grid-row:span 2; }
.g-6{ grid-column:span 3; grid-row:span 2; }
.g-7{ grid-column:span 3; grid-row:span 2; }
@media (max-width: 860px){
  .gallery{ grid-template-columns:repeat(2,1fr); grid-auto-rows:160px; }
  .g-1,.g-2,.g-3,.g-4,.g-5,.g-6,.g-7{ grid-column:span 1; grid-row:span 2; }
}

/* ============================================================
   SPEC TABLE
   ============================================================ */
.spec-table{ width:100%; border-collapse:collapse; }
.spec-table tr{ border-bottom:1px solid var(--aluminum); }
.spec-table tr:first-child{ border-top:1px solid var(--aluminum); }
.spec-table td{ padding:16px 4px; vertical-align:top; }
.spec-table td:first-child{
  font-family:var(--f-mono); font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--steel-soft); width:38%; padding-right:20px;
}
.spec-table td:last-child{ font-size:15px; }
.section--dark .spec-table tr{ border-bottom-color:var(--ink-line); }
.section--dark .spec-table tr:first-child{ border-top-color:var(--ink-line); }

/* compat chips */
.chip-row{ display:flex; gap:10px; flex-wrap:wrap; margin-top:14px; }
.chip{
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.05em;
  border:1px solid var(--aluminum); padding:7px 12px; color:var(--steel);
}
.section--dark .chip{ border-color:var(--ink-line); color:#c7cbcd; }

/* ============================================================
   PROCESS STEPS (custom helicopter adaptation)
   ============================================================ */
.steps{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--aluminum); border:1px solid var(--aluminum); }
.step{ background:var(--paper); padding:30px 24px; }
.step .code{ font-family:var(--f-mono); font-size:11px; color:var(--red); display:block; margin-bottom:18px; }
.step h4{ text-transform:none; font-weight:700; margin-bottom:8px; }
.step p{ font-size:14px; color:var(--steel); margin:0; }
@media (max-width: 860px){ .steps{ grid-template-columns:1fr 1fr; } }
@media (max-width: 560px){ .steps{ grid-template-columns:1fr; } }

/* ============================================================
   SERVICE DETAIL BLOCKS (Trabajos page)
   ============================================================ */
.svc-detail{
  display:grid; grid-template-columns:.55fr 1fr; gap:48px;
  padding:56px 0; border-top:1px solid var(--aluminum);
}
.svc-detail:last-of-type{ border-bottom:1px solid var(--aluminum); }
.svc-detail .idx{ font-family:var(--f-mono); font-size:13px; color:var(--red); }
.svc-detail h3{ margin-top:10px; text-transform:none; font-weight:700; font-size:clamp(1.5rem,2.6vw,2rem); }
.svc-detail .tags{ display:flex; gap:8px; flex-wrap:wrap; margin-top:18px; }
.svc-detail .tags span{
  font-family:var(--f-mono); font-size:10.5px; letter-spacing:.05em; text-transform:uppercase;
  border:1px solid var(--aluminum); padding:5px 10px; color:var(--steel-soft);
}
.svc-detail .icon-big{ width:46px; height:46px; color:var(--red); margin-bottom:18px; }
.svc-detail .icon-big svg{ width:100%; height:100%; }
.svc-detail-copy p{ color:var(--steel); }
@media (max-width: 860px){ .svc-detail{ grid-template-columns:1fr; gap:20px; } }

/* ============================================================
   CTA STRIP
   ============================================================ */
.cta-strip{
  background:var(--red); color:var(--white);
  padding:64px 0;
}
.cta-strip-inner{
  display:flex; justify-content:space-between; align-items:center; gap:30px; flex-wrap:wrap;
}
.cta-strip h2{ color:var(--white); font-size:clamp(1.8rem,3.6vw,2.6rem); }
.cta-strip .btn{ border-color:var(--white); color:var(--white); }
.cta-strip .btn:hover{ background:var(--white); color:var(--red); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ background:var(--ink); color:#9aa0a5; padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:40px; padding-bottom:40px; border-bottom:1px solid var(--ink-line); }
.footer-brand{ font-family:var(--f-display); color:var(--white); font-size:1.5rem; text-transform:uppercase; font-weight:800; }
.footer-brand + p{ margin-top:14px; max-width:34ch; font-size:14px; }
.footer-col h4{ color:var(--paper); font-size:11.5px; letter-spacing:.1em; margin-bottom:18px; }
.footer-col a, .footer-col p{ display:block; font-size:14.5px; margin-bottom:10px; color:#b8bcbf; }
.footer-col a:hover{ color:var(--red); }
.footer-bottom{
  display:flex; justify-content:space-between; padding-top:24px;
  font-family:var(--f-mono); font-size:11.5px; letter-spacing:.04em; color:#5f656b; flex-wrap:wrap; gap:10px;
}

@media (max-width: 760px){
  .footer-grid{ grid-template-columns:1fr; gap:30px; }
}

/* ============================================================
   PAGE INTRO (Trabajos page header)
   ============================================================ */
.page-hero{
  background:var(--ink); color:var(--paper); padding:150px 0 80px;
}
.page-hero h1{ color:var(--white); margin-top:18px; max-width:16ch; }

/* utility */
.mt-0{ margin-top:0; }
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }