/* ===== SERTINIC — Estilos ===== */
:root{
  --blue:#0A5CDF;
  --blue-d:#0A3D91;
  --green:#57D400;
  --cyan:#4FE5F0;
  --dark:#07121A;
  --dark2:#0B1B28;
  --panel:#0F2333;
  --text:#D8E4EE;
  --muted:#8EA3B4;
  --line:rgba(255,255,255,.10);
  --grad:linear-gradient(120deg,#0A5CDF 0%,#12A0E8 45%,#57D400 100%);
  --radius:16px;
  --shadow:0 20px 45px -20px rgba(0,0,0,.65);
  --maxw:1180px;
  --font:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --display:'Sora','Inter',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:var(--font);background:var(--dark);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--display);line-height:1.15;color:#fff;font-weight:800;letter-spacing:-.02em}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ===== Botones ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:600;font-size:.98rem;padding:.9rem 1.6rem;border-radius:50px;border:1px solid transparent;cursor:pointer;transition:.25s ease;white-space:nowrap}
.btn-sm{padding:.6rem 1.2rem;font-size:.9rem}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px -10px rgba(10,92,223,.8)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px -12px rgba(87,212,0,.7)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-block{width:100%}

/* ===== Header ===== */
.site-header{position:fixed;inset:0 0 auto 0;z-index:100;padding:16px 0;transition:.3s ease;background:transparent}
.site-header.scrolled{background:rgba(7,18,26,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:10px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand-logo{height:50px;width:auto;max-width:none;flex-shrink:0;transition:.3s}
.site-header.scrolled .brand-logo{height:42px}
.main-nav{display:flex;gap:1.9rem;align-items:center}
.main-nav a{font-size:.95rem;font-weight:500;color:var(--text);position:relative;padding:.2rem 0}
.main-nav a::after{content:'';position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--grad);transition:.25s}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:.8rem;flex:0 0 auto}
.lang-toggle{background:transparent;border:1px solid var(--line);color:var(--text);font:600 .82rem/1 var(--font);padding:.5rem .7rem;border-radius:40px;cursor:pointer;transition:.2s}
.lang-toggle:hover{border-color:var(--cyan);color:#fff}
html[lang="en"] .lang-en,html[lang="es"] .lang-es{color:var(--cyan)}
.lang-sep{opacity:.4;margin:0 2px}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.menu-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.25s}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero-overlay{position:absolute;inset:0;z-index:1;background:
  radial-gradient(120% 100% at 50% 0%,rgba(10,92,223,.35) 0%,rgba(7,18,26,.75) 55%,var(--dark) 100%),
  linear-gradient(180deg,rgba(7,18,26,.75) 0%,rgba(7,18,26,.55) 40%,var(--dark) 100%)}
.hero-glow{position:absolute;z-index:1;width:60vw;height:60vw;max-width:760px;max-height:760px;right:-18vw;top:-16vw;border-radius:50%;background:radial-gradient(circle,rgba(87,212,0,.22),transparent 62%);filter:blur(20px)}
.hero-content{position:relative;z-index:2;max-width:820px;padding:120px 22px 60px}
.hero-eyebrow{display:inline-block;font-size:.85rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);border:1px solid rgba(79,229,240,.35);border-radius:40px;padding:.45rem 1rem;margin-bottom:1.3rem;background:rgba(79,229,240,.06)}
.hero-title{font-size:clamp(2.3rem,5.4vw,4.2rem);margin-bottom:1.1rem}
.rotator{display:block;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;min-height:1.15em}
.hero-sub{font-size:clamp(1.02rem,1.5vw,1.2rem);color:#c8d6e2;max-width:640px;margin-bottom:2rem}
.hero-btns{display:flex;gap:.9rem;flex-wrap:wrap}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;width:26px;height:42px;border:2px solid rgba(255,255,255,.35);border-radius:20px;display:flex;justify-content:center;padding-top:8px}
.hero-scroll span{width:4px;height:8px;background:var(--cyan);border-radius:2px;animation:scrolldot 1.6s infinite}
@keyframes scrolldot{0%{opacity:0;transform:translateY(-4px)}50%{opacity:1}100%{opacity:0;transform:translateY(12px)}}

/* ===== Secciones ===== */
.section{padding:110px 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--dark2),var(--dark))}
.section-head{max-width:720px;margin:0 auto 3.5rem;text-align:center}
.eyebrow{display:inline-block;font-size:.82rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--green);margin-bottom:.8rem}
.section-head h2,.about-text h2,.contact-info h2{font-size:clamp(1.7rem,3.4vw,2.6rem);margin-bottom:1rem}
.section-head p{color:var(--muted);font-size:1.05rem}

/* ===== Servicios ===== */
.grid-services{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;transition:.3s ease;position:relative;overflow:hidden}
.card::before{content:'';position:absolute;inset:0;background:var(--grad);opacity:0;transition:.3s;z-index:-1}
.card:hover{transform:translateY(-8px);border-color:rgba(79,229,240,.5);box-shadow:0 24px 50px -24px rgba(10,92,223,.75)}
.card:hover .card-icon{background:var(--grad);color:#fff;border-color:transparent}
.card-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(79,229,240,.08);border:1px solid rgba(79,229,240,.25);color:var(--cyan);margin-bottom:1.1rem;transition:.3s}
.card-icon svg{width:28px;height:28px}
.card h3{font-size:1.12rem;margin-bottom:.55rem}
.card p{color:var(--muted);font-size:.95rem}

/* ===== Nosotros ===== */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.about-text p{color:var(--muted);margin-bottom:1.4rem}
.checklist{list-style:none;margin:0 0 2rem}
.checklist li{position:relative;padding-left:2rem;margin-bottom:.75rem;color:var(--text)}
.checklist li::before{content:'';position:absolute;left:0;top:.42em;width:20px;height:20px;border-radius:50%;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0);}
.checklist li::after{content:'✓';position:absolute;left:5px;top:0;color:#fff;font-size:.8rem;font-weight:700}
.stats{display:grid;grid-template-columns:1fr;gap:18px}
.stat{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;display:flex;flex-direction:column;gap:.2rem}
.stat-num{font-family:var(--display);font-weight:800;font-size:2.6rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.stat-label{color:var(--muted);font-size:.95rem}

/* ===== Marquee ===== */
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);margin-top:.5rem;padding:8px 0}
.marquee-track{display:flex;gap:60px;width:max-content;animation:marquee 32s linear infinite}
.marquee-track span{font-family:var(--display);font-weight:700;font-size:1.5rem;color:rgba(255,255,255,.42);white-space:nowrap;transition:.3s}
.marquee-track span:hover{color:#fff}
@keyframes marquee{to{transform:translateX(-50%)}}

/* Cinta de marcas (logos sobre tarjetas blancas) */
.marquee-brands .marquee-track{gap:26px;animation-duration:40s;align-items:center}
.brand-chip{flex:0 0 auto;width:200px;height:104px;background:#fff;border-radius:16px;display:flex;align-items:center;justify-content:center;padding:22px 28px;box-shadow:0 14px 32px -20px rgba(0,0,0,.65);transition:transform .3s ease,box-shadow .3s ease}
.brand-chip img{max-width:100%;max-height:54px;width:auto;height:auto;object-fit:contain}
.brand-chip:hover{transform:translateY(-6px) scale(1.04);box-shadow:0 22px 42px -16px rgba(10,92,223,.75)}
.marquee-brands:hover .marquee-track{animation-play-state:paused}

/* ===== Contacto ===== */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px}
.contact-info p{color:var(--muted);margin-bottom:1.8rem}
.contact-list{list-style:none}
.contact-list li{display:flex;flex-direction:column;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-list strong{color:var(--cyan);font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;font-family:var(--font);margin-bottom:.2rem}
.contact-list a{color:#fff}.contact-list a:hover{color:var(--green)}
.contact-form{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field input,.field textarea{width:100%;background:rgba(7,18,26,.6);border:1px solid var(--line);border-radius:12px;padding:14px 16px;color:#fff;font:inherit;font-size:.95rem;transition:.2s;resize:vertical}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(79,229,240,.15)}
.field input::placeholder,.field textarea::placeholder{color:#6d8296}
.form-msg{margin-top:14px;font-size:.92rem;min-height:1.2em}
.form-msg.ok{color:var(--green)}
.form-msg.err{color:#ff7b7b}

/* ===== Footer ===== */
.site-footer{background:#050D14;border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-logo{height:44px;width:auto;margin-bottom:1rem}
.footer-brand p{color:var(--muted);max-width:360px}
.footer-col{display:flex;flex-direction:column;gap:.6rem}
.footer-col h4{font-size:1rem;margin-bottom:.5rem}
.footer-col a,.footer-col span{color:var(--muted);font-size:.95rem}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;text-align:center;color:var(--muted);font-size:.88rem}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .grid-services{grid-template-columns:repeat(2,1fr)}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:38px}
}
@media (max-width:760px){
  .main-nav{position:fixed;inset:0 0 0 auto;width:min(78vw,320px);background:rgba(7,18,26,.97);backdrop-filter:blur(14px);flex-direction:column;justify-content:center;gap:2rem;transform:translateX(100%);transition:.3s;border-left:1px solid var(--line);z-index:99}
  .main-nav.open{transform:none}
  .main-nav a{font-size:1.25rem}
  .menu-toggle{display:flex}
  .section{padding:80px 0}
  .grid-services{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .hero-content{padding-top:100px}
  .brand-logo{height:40px}
  .site-header.scrolled .brand-logo{height:34px}
  .header-actions{gap:.5rem}
  .header-actions .btn-sm{padding:.5rem .85rem;font-size:.82rem}
}
@media (max-width:520px){
  .header-actions .btn{display:none}
  .brand-logo{height:44px}
}