/* ArenoLabs — arenolabs.com
   Paleta tomada del logo: azul profundo + cian de circuito. */

:root{
  --bg:        #070e1a;
  --bg-2:      #0a1625;
  --bg-3:      #0d1e33;
  --surface:   rgba(122,178,214,.045);
  --surface-2: rgba(122,178,214,.075);
  --line:      rgba(124,178,214,.16);
  --line-2:    rgba(124,178,214,.28);

  --text:      #e6eef6;
  --text-2:    #a9bed2;
  --muted:     #7e93a8;

  --cyan:      #35b8da;
  --cyan-2:    #5fd6f0;
  --cyan-dim:  #1c7f9c;
  --steel:     #6f9bbd;

  --shadow:    0 24px 60px -28px rgba(0,0,0,.85);
  --radius:    16px;
  --radius-sm: 10px;

  --font-display:"Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body:"Inter", "Segoe UI", system-ui, -apple-system, sans-serif;

  --container: 1160px;
  --header-h: 74px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; scroll-padding-top:calc(var(--header-h) + 18px); }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

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

h1,h2,h3{ font-family:var(--font-display); line-height:1.12; letter-spacing:-.02em; margin:0 0 .5em; }
h1{ font-size:clamp(2.3rem, 1.2rem + 3.9vw, 4.05rem); font-weight:700; }
h2{ font-size:clamp(1.75rem, 1.1rem + 2.2vw, 2.7rem); font-weight:600; }
h3{ font-size:1.14rem; font-weight:600; letter-spacing:-.01em; }
p{ margin:0 0 1rem; color:var(--text-2); }

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

.skip-link{
  position:absolute; left:-999px; top:0; z-index:200;
  background:var(--cyan); color:#04121c; padding:10px 16px; border-radius:0 0 8px 0; font-weight:600;
}
.skip-link:focus{ left:0; }

:focus-visible{ outline:2px solid var(--cyan-2); outline-offset:3px; border-radius:4px; }

/* ── Botones ─────────────────────────────────────────── */
.btn{
  --btn-bg:transparent;
  display:inline-flex; align-items:center; justify-content:center; gap:.5em;
  padding:.85em 1.5em; border-radius:999px;
  font-family:var(--font-display); font-weight:600; font-size:.95rem; letter-spacing:.01em;
  border:1px solid transparent; cursor:pointer; white-space:nowrap;
  transition:transform .18s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg, var(--cyan-2), var(--cyan-dim));
  color:#04131c;
  box-shadow:0 12px 30px -14px rgba(53,184,218,.85);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 18px 38px -14px rgba(53,184,218,.95); }
.btn-ghost{ border-color:var(--line-2); color:var(--text); background:var(--surface); }
.btn-ghost:hover{ border-color:var(--cyan); color:#fff; background:var(--surface-2); transform:translateY(-2px); }
.btn-sm{ padding:.62em 1.15em; font-size:.88rem; }
.btn-block{ width:100%; }

/* ── Header ──────────────────────────────────────────── */
/* El desenfoque va en un ::before y no en el header: `backdrop-filter` en el
   header convierte a éste en bloque contenedor del menú `position:fixed` y
   Chromium deja de pintarle el fondo al panel móvil. */
.site-header{ position:sticky; top:0; z-index:100; }
.site-header::before{
  content:""; position:absolute; inset:0; z-index:-1;
  background:rgba(7,14,26,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.site-header.is-stuck::before{ border-bottom-color:var(--line); background:rgba(7,14,26,.92); }
.header-inner{ display:flex; align-items:center; gap:20px; height:var(--header-h); }

.brand{ display:flex; align-items:center; gap:11px; flex-shrink:0; }
.brand-mark{ width:34px; height:auto; filter:drop-shadow(0 0 14px rgba(53,184,218,.35)); }
.brand-text{ font-family:var(--font-display); font-size:1.16rem; letter-spacing:.02em; line-height:1; }
.brand-text b{ font-weight:700; color:#fff; }
.brand-text i{ font-style:normal; font-weight:700; color:var(--cyan); }

.nav{ display:flex; gap:6px; margin-left:auto; }
.nav a{
  position:relative; padding:.55em .9em; border-radius:8px;
  font-size:.94rem; color:var(--text-2); transition:color .2s ease, background .2s ease;
}
.nav a:hover{ color:#fff; background:var(--surface); }
.nav a.is-current{ color:#fff; }
.nav a.is-current::after{
  content:""; position:absolute; left:.9em; right:.9em; bottom:.15em; height:2px;
  background:var(--cyan); border-radius:2px;
}

.header-actions{ display:flex; align-items:center; gap:14px; margin-left:8px; }

.lang{ display:flex; align-items:center; gap:4px; font-size:.82rem; color:var(--muted); }
.lang-btn{
  background:none; border:0; padding:2px 3px; cursor:pointer; color:var(--muted);
  font-weight:600; letter-spacing:.05em; transition:color .2s ease;
}
.lang-btn:hover{ color:var(--text); }
.lang-btn.is-active{ color:var(--cyan); }
.lang-sep{ opacity:.4; }

.burger{ display:none; background:none; border:0; padding:8px; cursor:pointer; }
.burger span{
  display:block; width:22px; height:2px; margin:4px 0; background:var(--text); border-radius:2px;
  transition:transform .25s ease, opacity .2s ease;
}
.burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.burger[aria-expanded="true"] span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

/* ── Hero ────────────────────────────────────────────── */
.hero{ position:relative; overflow:hidden; padding:clamp(56px,7vw,104px) 0 clamp(64px,8vw,116px); }
.hero-canvas{ position:absolute; inset:0; width:100%; height:100%; opacity:.55; }
.hero-glow{
  position:absolute; inset:-20% -10% auto -10%; height:120%;
  background:
    radial-gradient(58% 52% at 26% 34%, rgba(53,184,218,.20), transparent 68%),
    radial-gradient(48% 44% at 82% 18%, rgba(35,90,150,.24), transparent 70%);
  pointer-events:none;
}
.hero-inner{
  position:relative; display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(24px,4vw,64px); align-items:center;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:.6em;
  font-family:var(--font-display); font-size:.8rem; font-weight:600;
  letter-spacing:.16em; text-transform:uppercase; color:var(--cyan);
  margin:0 0 1.2rem; padding:.45em 1em;
  border:1px solid var(--line-2); border-radius:999px; background:var(--surface);
}
.eyebrow::before{
  content:""; width:6px; height:6px; border-radius:50%; background:var(--cyan-2);
  box-shadow:0 0 0 4px rgba(53,184,218,.18);
}
.grad{
  background:linear-gradient(100deg, var(--cyan-2) 5%, #8fe3f7 40%, var(--steel) 95%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.lead{ font-size:clamp(1.02rem,.95rem + .3vw,1.16rem); max-width:60ch; color:var(--text-2); }
.hero-cta{ display:flex; flex-wrap:wrap; gap:14px; margin:2rem 0 2.6rem; }

.hero-facts{
  display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px;
  list-style:none; margin:0; padding:22px 0 0; border-top:1px solid var(--line);
}
.hero-facts li{ display:flex; flex-direction:column; gap:2px; }
.hero-facts b{ font-family:var(--font-display); font-size:.93rem; color:#fff; font-weight:600; }
.hero-facts span{ font-size:.82rem; color:var(--muted); letter-spacing:.02em; }

.hero-art{ position:relative; display:grid; place-items:center; min-height:320px; }
.hero-logo{
  width:min(88%,380px); position:relative; z-index:2;
  filter:drop-shadow(0 30px 60px rgba(0,0,0,.6)) drop-shadow(0 0 40px rgba(53,184,218,.22));
  animation:float 7s ease-in-out infinite;
}
.hero-ring{
  position:absolute; width:min(94%,430px); aspect-ratio:1; border-radius:50%;
  border:1px solid var(--line-2);
  background:radial-gradient(circle at 50% 50%, rgba(53,184,218,.16), transparent 62%);
  animation:pulse 6s ease-in-out infinite;
}
.hero-ring::after{
  content:""; position:absolute; inset:14%; border-radius:50%; border:1px dashed rgba(124,178,214,.22);
  animation:spin 44s linear infinite;
}
@keyframes float{ 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-12px); } }
@keyframes pulse{ 0%,100%{ transform:scale(1); opacity:.9; } 50%{ transform:scale(1.04); opacity:1; } }
@keyframes spin{ to{ transform:rotate(360deg); } }

/* ── Secciones ───────────────────────────────────────── */
.section{ padding:clamp(64px,8vw,116px) 0; position:relative; }
.section-alt{ background:linear-gradient(180deg, transparent, var(--bg-2) 12%, var(--bg-2) 88%, transparent); }
.section-alt::before,.section-alt::after{
  content:""; position:absolute; left:0; right:0; height:1px; background:var(--line);
}
.section-alt::before{ top:0; } .section-alt::after{ bottom:0; }

.section-head{ max-width:62ch; margin-bottom:clamp(32px,4vw,54px); }
.kicker{
  font-family:var(--font-display); font-size:.78rem; font-weight:600;
  letter-spacing:.18em; text-transform:uppercase; color:var(--cyan); margin:0 0 .8rem;
}
.section-lead{ font-size:1.04rem; }

.grid{ display:grid; gap:20px; }
.grid-2{ grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); }

/* ── Cards ───────────────────────────────────────────── */
.card{
  position:relative; padding:30px 28px 26px;
  background:linear-gradient(160deg, var(--surface-2), var(--surface));
  border:1px solid var(--line); border-radius:var(--radius);
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  overflow:hidden;
}
.card::before{
  content:""; position:absolute; inset:0; opacity:0; transition:opacity .35s ease; pointer-events:none;
  background:radial-gradient(70% 60% at 12% 0%, rgba(53,184,218,.14), transparent 70%);
}
.card:hover{ transform:translateY(-4px); border-color:var(--line-2); box-shadow:var(--shadow); }
.card:hover::before{ opacity:1; }
.card h3{ margin-bottom:.55em; color:#fff; }
.card p{ font-size:.97rem; margin-bottom:1.2rem; }
.card-ico{
  width:46px; height:46px; margin-bottom:18px; border-radius:12px;
  display:grid; place-items:center; color:var(--cyan-2);
  background:rgba(53,184,218,.10); border:1px solid var(--line-2);
}
.card-ico svg{ width:23px; height:23px; }

.tags{ display:flex; flex-wrap:wrap; gap:7px; list-style:none; margin:0; padding:0; }
.tags li{
  font-size:.76rem; letter-spacing:.03em; color:var(--steel);
  padding:.32em .78em; border:1px solid var(--line); border-radius:999px; background:rgba(255,255,255,.02);
}

/* ── Repos ───────────────────────────────────────────── */
.repos{ display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); gap:18px; }
.repo{
  display:flex; flex-direction:column; gap:10px; padding:24px 22px;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  transition:transform .3s ease, border-color .3s ease, background .3s ease;
}
a.repo:hover{ transform:translateY(-3px); border-color:var(--cyan); background:var(--surface-2); }
.repo-name{ font-family:var(--font-display); font-weight:600; color:#fff; font-size:1.02rem; display:flex; align-items:center; gap:.5em; }
.repo-name::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--cyan); flex:0 0 auto; }
.repo-desc{ font-size:.93rem; color:var(--text-2); margin:0; flex:1; }
.repo-meta{ display:flex; gap:16px; font-size:.8rem; color:var(--muted); letter-spacing:.02em; }
.repo-lang{ display:inline-flex; align-items:center; gap:.45em; }
.repo-lang::before{ content:""; width:8px; height:8px; border-radius:50%; background:var(--steel); }
.repo-more{ border-style:dashed; background:transparent; }
.repo-more .repo-name{ color:var(--text-2); }
.repo-more .repo-name::before{ background:var(--steel); opacity:.6; }
.repo-skeleton{ min-height:150px; background:linear-gradient(100deg, var(--surface) 30%, var(--surface-2) 50%, var(--surface) 70%); background-size:220% 100%; animation:shimmer 1.6s linear infinite; }
@keyframes shimmer{ to{ background-position:-120% 0; } }
.repos-empty{ grid-column:1/-1; padding:34px; text-align:center; border:1px dashed var(--line-2); border-radius:var(--radius); color:var(--muted); }
.repos-foot{ margin-top:26px; }

/* ── Proceso ─────────────────────────────────────────── */
.steps{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:0;
  list-style:none; margin:0; padding:0; counter-reset:step;
}
.step{ position:relative; padding:30px 26px 30px 0; border-top:1px solid var(--line); }
.step + .step{ padding-left:26px; border-left:1px solid var(--line); }
.step-n{
  display:block; font-family:var(--font-display); font-size:.82rem; font-weight:600;
  letter-spacing:.18em; color:var(--cyan); margin-bottom:1rem;
}
.step h3{ color:#fff; margin-bottom:.5em; }
.step p{ font-size:.94rem; margin:0; }

/* ── Stack ───────────────────────────────────────────── */
.stack-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:20px; }
.stack-col{ padding:26px 24px; border:1px solid var(--line); border-radius:var(--radius); background:var(--surface); }
.stack-col h3{ color:var(--cyan-2); font-size:.86rem; letter-spacing:.14em; text-transform:uppercase; margin-bottom:1.1em; }
.stack-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.6em; }
.stack-col li{ font-size:.95rem; color:var(--text-2); padding-left:16px; position:relative; }
.stack-col li::before{ content:""; position:absolute; left:0; top:.62em; width:6px; height:6px; border-radius:1px; background:var(--cyan-dim); transform:rotate(45deg); }

/* ── Estudio ─────────────────────────────────────────── */
.studio{ display:grid; grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr); gap:clamp(28px,4vw,60px); align-items:center; }
.studio-copy p{ font-size:1.02rem; }
.values{ list-style:none; margin:2rem 0 0; padding:0; display:grid; gap:16px; }
.values li{ display:flex; flex-direction:column; gap:3px; padding-left:18px; border-left:2px solid var(--cyan-dim); }
.values b{ font-family:var(--font-display); color:#fff; font-weight:600; font-size:1rem; }
.values span{ font-size:.94rem; color:var(--text-2); }
.studio-card{
  padding:34px 30px; border:1px solid var(--line); border-radius:var(--radius);
  background:linear-gradient(165deg, rgba(53,184,218,.09), var(--surface));
  text-align:center; box-shadow:var(--shadow);
}
.studio-card img{ width:min(100%,300px); margin:0 auto 22px; filter:drop-shadow(0 0 30px rgba(53,184,218,.18)); }
.studio-card p{ font-size:.95rem; color:var(--text-2); margin:0; font-style:italic; }

/* ── Contacto ────────────────────────────────────────── */
.section-contact{ background:linear-gradient(180deg, transparent, rgba(13,30,51,.75)); border-top:1px solid var(--line); }
.contact{ display:grid; grid-template-columns:minmax(0,1fr) minmax(0,.9fr); gap:clamp(28px,4vw,60px); align-items:start; }
.contact-direct{ display:flex; flex-wrap:wrap; align-items:center; gap:12px; margin:1.6rem 0 1.2rem; }
.mail{
  font-family:var(--font-display); font-size:clamp(1.05rem,.9rem + .6vw,1.42rem); font-weight:600; color:#fff;
  border-bottom:2px solid var(--cyan); padding-bottom:2px; transition:color .2s ease;
}
.mail:hover{ color:var(--cyan-2); }
.copy{
  background:var(--surface); border:1px solid var(--line-2); color:var(--text-2);
  padding:.4em 1em; border-radius:999px; font-size:.82rem; cursor:pointer; transition:all .2s ease;
}
.copy:hover{ color:#fff; border-color:var(--cyan); }
.copy.is-done{ color:var(--cyan-2); border-color:var(--cyan); }
.contact-links{ list-style:none; margin:0; padding:0; display:grid; gap:8px; font-size:.93rem; color:var(--muted); }
.contact-links a{ color:var(--text-2); border-bottom:1px solid var(--line-2); }
.contact-links a:hover{ color:var(--cyan-2); }

.contact-form{
  padding:30px 28px; border:1px solid var(--line); border-radius:var(--radius);
  background:var(--surface); display:grid; gap:16px; box-shadow:var(--shadow);
}
.field{ display:grid; gap:6px; }
.field label{ font-size:.83rem; font-weight:500; color:var(--text-2); letter-spacing:.02em; }
.field input,.field select,.field textarea{
  width:100%; padding:.75em .9em; border-radius:var(--radius-sm);
  background:rgba(4,10,18,.6); border:1px solid var(--line); color:var(--text);
  font-family:inherit; font-size:.95rem; transition:border-color .2s ease, background .2s ease;
}
.field textarea{ resize:vertical; min-height:110px; }
.field input:focus,.field select:focus,.field textarea:focus{ outline:none; border-color:var(--cyan); background:rgba(4,10,18,.85); }
.field input:user-invalid,.field textarea:user-invalid{ border-color:#e0716b; }
.field select{ appearance:none; background-image:linear-gradient(45deg,transparent 50%,var(--steel) 50%),linear-gradient(135deg,var(--steel) 50%,transparent 50%); background-position:calc(100% - 20px) 52%,calc(100% - 15px) 52%; background-size:5px 5px,5px 5px; background-repeat:no-repeat; }
.field select option{ background:var(--bg-2); color:var(--text); }
.form-note{ font-size:.8rem; color:var(--muted); margin:0; text-align:center; }

/* ── Footer ──────────────────────────────────────────── */
.site-footer{ border-top:1px solid var(--line); padding:44px 0 40px; background:var(--bg); }
.footer-inner{ display:flex; flex-wrap:wrap; gap:24px 40px; align-items:center; justify-content:space-between; }
.footer-brand{ display:flex; align-items:center; gap:13px; }
.footer-brand img{ width:38px; }
.footer-brand small{ display:block; font-size:.8rem; color:var(--muted); margin-top:2px; }
.footer-nav{ display:flex; flex-wrap:wrap; gap:6px 20px; font-size:.9rem; }
.footer-nav a{ color:var(--text-2); }
.footer-nav a:hover{ color:var(--cyan-2); }
.footer-legal{ font-size:.83rem; color:var(--muted); margin:0; width:100%; padding-top:22px; border-top:1px solid var(--line); }
.footer-legal a{ color:var(--text-2); }
.footer-legal a:hover{ color:var(--cyan-2); }

/* ── 404 ─────────────────────────────────────────────── */
.nf{ min-height:100vh; display:grid; place-items:center; text-align:center; padding:40px 24px; }
.nf img{ width:150px; margin:0 auto 28px; filter:drop-shadow(0 0 34px rgba(53,184,218,.25)); }
.nf .code{ font-family:var(--font-display); font-size:clamp(3rem,10vw,5.5rem); font-weight:700; line-height:1; margin:0 0 .2em; }
.nf p{ max-width:44ch; margin-inline:auto; }
.nf .nf-cta{ margin-top:28px; }

/* ── Reveal ──────────────────────────────────────────── */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s cubic-bezier(.22,.7,.3,1), transform .7s cubic-bezier(.22,.7,.3,1); }
.reveal.is-in{ opacity:1; transform:none; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width:960px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-art{ order:-1; min-height:0; }
  .hero-logo{ width:min(62%,260px); }
  .hero-ring{ width:min(72%,300px); }
  .studio,.contact{ grid-template-columns:1fr; }
  .studio-card{ order:-1; }
  .step + .step{ border-left:0; padding-left:0; }
}

@media (max-width:860px){
  .nav{
    position:fixed; inset:var(--header-h) 0 auto 0;
    flex-direction:column; gap:0; margin:0; padding:12px 24px 22px;
    background:#081120; border-bottom:1px solid var(--line);
    box-shadow:0 22px 40px -26px rgba(0,0,0,.9);
    transform:translateY(-12px); opacity:0; pointer-events:none;
    transition:opacity .22s ease, transform .22s ease;
  }
  .nav.is-open{ transform:none; opacity:1; pointer-events:auto; }
  .nav a{ padding:.85em .2em; border-bottom:1px solid var(--line); border-radius:0; font-size:1rem; }
  .nav a.is-current::after{ display:none; }
  .burger{ display:block; }
  .header-actions .btn{ display:none; }
}

@media (max-width:560px){
  body{ font-size:16px; }
  .container{ padding-inline:18px; }
  .hero{ padding-top:36px; }
  .hero-logo{ width:min(50%,200px); }
  .hero-ring{ width:min(60%,240px); }
  .hero-inner{ gap:18px; }
  .eyebrow{ font-size:.7rem; letter-spacing:.12em; padding:.4em .85em; }
  .hero-facts{ grid-template-columns:1fr; gap:12px; }
  .hero-cta .btn{ width:100%; }
  .card{ padding:26px 22px 24px; }
  .footer-inner{ flex-direction:column; align-items:flex-start; }
}

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  .reveal{ opacity:1; transform:none; }
}

@media print{
  .site-header,.hero-canvas,.hero-glow,.hero-art,.contact-form{ display:none; }
  body{ background:#fff; color:#000; }
}