/* ============================================
   Halink — Landing temporal
   Mobile-first · infraestructura técnica sobria
   ============================================ */

:root {
  --bg:         #14161A;
  --bg-2:       #101216;
  --surface:    #1E2128;
  --surface-2:  #23262E;
  --text:       #F2F0EC;
  --text-soft:  #9BA0A8;
  --text-mute:  #6B7079;
  --accent:     #ED6D05;
  --accent-hi:  #FF7B0F;
  --accent-dim: rgba(237,109,5,.14);
  --line:       rgba(255,255,255,.08);
  --line-2:     rgba(255,255,255,.14);

  --container: 1160px;
  --pad-x: 24px;
  --radius: 4px;
  --radius-lg: 8px;

  --ease: cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; height: auto; }

a {
  color: var(--text);
  text-decoration: none;
  transition: color .18s var(--ease), opacity .18s var(--ease);
}
a:hover { color: var(--accent-hi); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px; left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  border-radius: var(--radius);
  z-index: 100;
  font-weight: 500;
}
.skip-link:focus { top: 12px; outline: 2px solid var(--text); outline-offset: 2px; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

/* ============================================ TYPE ============================================ */
h1, h2, h3 {
  font-family: 'Manrope', system-ui, sans-serif;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}
h1 {
  font-size: clamp(2.4rem, 6.4vw, 4rem);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.035em;
}
h2 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.15;
  font-weight: 700;
}
h3 {
  font-size: 1.125rem;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.01em;
}
p { margin: 0; color: var(--text-soft); }

.kicker, .eyebrow {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
  font-weight: 500;
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.kicker::before, .eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}

.lead {
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 56ch;
}
.intro {
  font-size: 1rem;
  color: var(--text-soft);
  max-width: 56ch;
}

/* ============================================ BUTTONS ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius);
  font-family: 'Manrope', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color .18s var(--ease), border-color .18s var(--ease),
              color .18s var(--ease), transform .15s var(--ease), box-shadow .18s var(--ease);
  text-align: center;
  line-height: 1;
  white-space: nowrap;
}
.btn .ico { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.12) inset;
}
.btn-primary:hover {
  background: var(--accent-hi);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -10px rgba(237,109,5,.6);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-2);
}
.btn-ghost:hover { border-color: var(--text-soft); color: var(--text); }

.btn-sm { padding: 10px 16px; font-size: 0.875rem; }
.btn-lg { padding: 18px 28px; font-size: 1.05rem; }

/* ============================================ HEADER ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 22, 26, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.wordmark {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: .04em;
  color: var(--text);
  line-height: 1;
}
.wm-i { color: var(--accent); }

.nav { display: flex; align-items: center; gap: 32px; }
.nav a { font-size: 0.92rem; color: var(--text-soft); font-weight: 500; }
.nav a:hover { color: var(--text); }
.nav .btn { color: #fff; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--text);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ============================================ HERO ============================================ */
.hero {
  position: relative;
  padding: clamp(72px, 12vw, 150px) 0 clamp(48px, 7vw, 84px);
  overflow: hidden;
}
/* Atmósfera: grilla técnica + glow de acento */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 30% 25%, #000 0%, transparent 78%);
          mask-image: radial-gradient(ellipse 90% 70% at 30% 25%, #000 0%, transparent 78%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  top: -30%; right: -10%;
  width: 60vw; height: 60vw;
  max-width: 720px; max-height: 720px;
  background: radial-gradient(circle, rgba(237,109,5,.13) 0%, transparent 65%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero .kicker { margin-bottom: 26px; }
.hero h1 { margin-bottom: 26px; max-width: 16ch; }
.hero h1 .acc { color: var(--accent); }
.hero .lead { margin-bottom: 38px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; }

/* Franja de stats */
.hero-stats {
  list-style: none;
  margin: clamp(48px, 7vw, 80px) 0 0;
  padding: 30px 0 0;
  border-top: 1px solid var(--line-2);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 4px 26px;
  border-left: 1px solid var(--line);
}
.hero-stats li:first-child { padding-left: 0; border-left: none; }
.stat-num {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
}
.stat-num .u { color: var(--accent); }
.stat-label {
  font-size: 0.82rem;
  color: var(--text-mute);
  line-height: 1.4;
}

/* ============================================ SECTIONS ============================================ */
.section {
  position: relative;
  padding: clamp(72px, 10vw, 120px) 0;
  border-top: 1px solid var(--line);
}
.section-alt { background: var(--surface); }

.section-head {
  margin-bottom: clamp(40px, 6vw, 60px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 62ch;
}
.section-head .eyebrow { margin-bottom: 2px; }

/* Services cards */
.cards {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(244px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.card {
  position: relative;
  background: var(--bg);
  padding: 38px 30px 42px;
  display: flex;
  flex-direction: column;
  gap: 13px;
  transition: background .22s var(--ease);
}
.section-alt .card { background: var(--surface); }
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s var(--ease);
}
.card:hover { background: var(--surface-2); }
.section-alt .card:hover { background: var(--surface-2); }
.card:hover::before { transform: scaleX(1); }

.card-num {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 4px;
}
.card h3 { margin: 0; }
.card p { font-size: 0.95rem; }

/* Nosotros points */
.points {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 4px 48px;
}
.points li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 26px 0;
  border-top: 1px solid var(--line-2);
}
.point-tag {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 2px;
}
.points h3 { margin-bottom: 2px; }
.points p { font-size: 0.95rem; color: var(--text-soft); }

/* Contacto */
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact-grid h2 { margin: 8px 0 16px; }
.contact-grid .intro { margin-bottom: 32px; }

.contact-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.contact-list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.contact-list li:first-child { padding-top: 0; }
.contact-list li:last-child { border-bottom: none; }
.contact-label {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-mute);
  font-weight: 500;
}
.contact-list a {
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 500;
  width: fit-content;
}
.contact-list a:hover { color: var(--accent-hi); }
.contact-list span:not(.contact-label) { color: var(--text-soft); font-size: 1.05rem; }

/* ============================================ FOOTER ============================================ */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 56px 0 48px;
  background: var(--bg-2);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}
.footer-logo { font-size: 1.15rem; opacity: 0.92; }
.footer-tag { color: var(--text-soft); font-size: 0.95rem; margin: 0; }
.footer-copy {
  color: var(--text-mute);
  font-size: 0.82rem;
  font-family: 'IBM Plex Sans', sans-serif;
  margin: 0;
}

/* ============================================ ANIMACIÓN ============================================ */
/* Entrada del hero (al cargar) */
@keyframes rise {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero .kicker, .hero h1, .hero .lead, .hero-ctas, .hero-stats {
  opacity: 0;
  animation: rise .7s var(--ease) forwards;
}
.hero .kicker   { animation-delay: .05s; }
.hero h1        { animation-delay: .15s; }
.hero .lead     { animation-delay: .27s; }
.hero-ctas      { animation-delay: .39s; }
.hero-stats     { animation-delay: .5s; }

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal, .hero .kicker, .hero h1, .hero .lead, .hero-ctas, .hero-stats {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ============================================ RESPONSIVE ============================================ */
@media (max-width: 900px) {
  .hero-stats { grid-template-columns: 1fr 1fr; row-gap: 30px; }
  .hero-stats li { padding: 0 20px; border-left: 1px solid var(--line); }
  .hero-stats li:nth-child(odd) { padding-left: 0; border-left: none; }
}

@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed;
    inset: 72px 0 0 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 24px var(--pad-x);
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: transform .25s var(--ease), opacity .25s var(--ease), visibility 0s linear .25s;
    border-bottom: 1px solid var(--line);
    overflow-y: auto;
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: transform .25s var(--ease), opacity .25s var(--ease);
  }
  .nav a {
    padding: 18px 4px;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--line);
    color: var(--text);
  }
  .nav .btn {
    margin-top: 18px;
    align-self: flex-start;
    border-bottom: none;
    padding: 14px 22px;
    font-size: 0.95rem;
  }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 560px) {
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .btn-lg { width: 100%; justify-content: center; }
}