/* =========================================================
   Infinitlog Transportes — Design System
   ========================================================= */
:root{
  /* Brand */
  --navy-900:#08203f;
  --navy-800:#0d2a4d;
  --navy-700:#123a68;
  --blue-600:#1d64d6;
  --blue-500:#2f78ea;
  --blue-400:#5b9bff;
  --amber:#f5a623;
  --whatsapp:#25d366;

  /* Neutrals */
  --ink:#0f1b2d;
  --slate-700:#33445c;
  --slate-500:#5b6b82;
  --slate-400:#8493a8;
  --line:#e6ebf2;
  --bg:#ffffff;
  --bg-soft:#f5f8fc;
  --bg-tint:#eef4fb;

  /* System */
  --radius:18px;
  --radius-sm:12px;
  --radius-lg:28px;
  --shadow-sm:0 2px 8px rgba(13,42,77,.06);
  --shadow:0 18px 45px -20px rgba(13,42,77,.28);
  --shadow-lg:0 40px 80px -32px rgba(13,42,77,.42);
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-body:"Inter",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-head:"Sora","Inter",-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);
  line-height:1.65;font-size:17px;-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(--font-head);line-height:1.12;margin:0;letter-spacing:-.02em;color:var(--navy-800)}
h1{font-size:clamp(2.3rem,5.2vw,4rem);font-weight:800}
h2{font-size:clamp(1.9rem,3.6vw,2.85rem);font-weight:800}
h3{font-size:1.28rem;font-weight:700}
p{margin:0}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:24px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-head);font-weight:700;
  font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-600)}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--blue-500);border-radius:2px}
.section{padding:clamp(64px,9vw,120px) 0}
.section--soft{background:var(--bg-soft)}
.lead{color:var(--slate-500);font-size:1.12rem;max-width:60ch}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700;
  font-size:1rem;padding:15px 28px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s;white-space:nowrap}
.btn svg{width:19px;height:19px}
.btn--primary{background:linear-gradient(120deg,var(--blue-600),var(--navy-700));color:#fff;
  box-shadow:0 14px 30px -12px rgba(29,100,214,.6)}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 22px 40px -14px rgba(29,100,214,.7)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.btn--wa{background:var(--whatsapp);color:#fff;box-shadow:0 14px 30px -12px rgba(37,211,102,.6)}
.btn--wa:hover{transform:translateY(-3px)}
.btn--dark{background:var(--navy-800);color:#fff}
.btn--dark:hover{background:var(--navy-900);transform:translateY(-3px)}

/* ===================== Header ===================== */
.header{position:fixed;inset:0 0 auto 0;z-index:50;transition:all .35s var(--ease);padding:18px 0}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:rgba(255,255,255,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.6);box-shadow:var(--shadow-sm);border-radius:999px;
  padding:10px 12px 10px 22px;transition:all .35s var(--ease)}
.header.scrolled{padding:10px 0}
.header.scrolled .header__inner{box-shadow:var(--shadow);background:rgba(255,255,255,.88)}
.brand{display:flex;align-items:center;color:var(--navy-800)}
.brand svg{height:42px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav a{font-family:var(--font-head);font-weight:600;font-size:.98rem;color:var(--slate-700);
  padding:9px 16px;border-radius:999px;transition:color .2s,background .2s}
.nav a:hover{color:var(--navy-800);background:var(--bg-tint)}
.header__cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:44px;height:44px;
  border-radius:12px;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav-toggle span{width:22px;height:2.5px;background:var(--navy-800);border-radius:2px;transition:.3s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ===================== Hero ===================== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:-2}
.hero__bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);animation:heroZoom 18s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero__bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(6,20,38,.9) 0%,rgba(8,25,50,.72) 42%,rgba(10,33,66,.35) 100%)}
.hero__content{position:relative;padding:140px 0 90px;max-width:760px}
.hero h1{color:#fff;text-shadow:0 4px 30px rgba(0,0,0,.25)}
.hero h1 .accent{background:linear-gradient(100deg,#7fb2ff,#fff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{margin-top:22px;font-size:1.24rem;color:rgba(255,255,255,.9);max-width:52ch}
.hero__actions{margin-top:38px;display:flex;flex-wrap:wrap;gap:14px}
.hero__stats{margin-top:60px;display:flex;flex-wrap:wrap;gap:14px 40px}
.hero__stat b{font-family:var(--font-head);font-size:2rem;font-weight:800;display:block;line-height:1}
.hero__stat span{font-size:.9rem;color:rgba(255,255,255,.72)}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);
  font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;display:flex;flex-direction:column;
  align-items:center;gap:8px}
.scroll-hint::after{content:"";width:1px;height:34px;background:linear-gradient(rgba(255,255,255,.7),transparent);animation:scrollPulse 2s infinite}
@keyframes scrollPulse{0%,100%{opacity:.3}50%{opacity:1}}

/* ===================== About / split ===================== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.split--rev .split__media{order:-1}
.split__body h2{margin-top:16px}
.split__body p{margin-top:20px;color:var(--slate-500);font-size:1.08rem}
.media-frame{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.media-frame img{width:100%;height:100%;object-fit:cover;aspect-ratio:5/4;transition:transform .8s var(--ease)}
.media-frame:hover img{transform:scale(1.05)}
.media-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.media-stack .media-frame:first-child{grid-column:1/-1}
.media-stack .media-frame img{aspect-ratio:16/10}
.badge-float{position:absolute;bottom:20px;left:20px;background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);border-radius:16px;padding:14px 20px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:center}
.badge-float b{font-family:var(--font-head);color:var(--navy-800);font-size:1.5rem;line-height:1}
.badge-float span{font-size:.82rem;color:var(--slate-500)}
.badge-float .ic{width:42px;height:42px;border-radius:12px;background:var(--bg-tint);display:grid;place-items:center;color:var(--blue-600)}
.badge-float .ic svg{width:22px;height:22px}

.check-list{margin-top:28px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;list-style:none;color:var(--slate-700);font-weight:500}
.check-list li svg{width:24px;height:24px;color:var(--blue-600);flex-shrink:0;margin-top:1px}
ul{padding:0;margin:0}

/* ===================== Section head ===================== */
.section-head{text-align:center;max-width:640px;margin:0 auto clamp(40px,5vw,64px)}
.section-head h2{margin-top:14px}
.section-head p{margin-top:16px;color:var(--slate-500);font-size:1.1rem}

/* ===================== Services ===================== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;
  background:linear-gradient(90deg,var(--blue-500),var(--navy-700));transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card__icon{width:60px;height:60px;border-radius:16px;display:grid;place-items:center;margin-bottom:22px;
  background:linear-gradient(135deg,var(--bg-tint),#dbe9fb);color:var(--blue-600)}
.card__icon svg{width:30px;height:30px}
.card h3{color:var(--navy-800)}
.card p{margin-top:12px;color:var(--slate-500);font-size:1rem}

/* ===================== Fleet ===================== */
.fleet-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;margin-top:8px}
.fleet-hero{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:420px;box-shadow:var(--shadow-lg)}
.fleet-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.fleet-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,25,50,.85),transparent 60%)}
.fleet-hero__cap{position:absolute;left:28px;bottom:26px;right:28px;color:#fff;z-index:2}
.fleet-hero__cap h3{color:#fff;font-size:1.5rem}
.fleet-hero__cap p{color:rgba(255,255,255,.82);margin-top:6px}
.fleet-side{display:grid;gap:24px}
.fleet-tile{position:relative;border-radius:var(--radius);overflow:hidden;min-height:198px}
.fleet-tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.fleet-tile:hover img{transform:scale(1.06)}
.fleet-tile::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,25,50,.8),transparent 55%)}
.fleet-tile span{position:absolute;left:20px;bottom:16px;color:#fff;font-family:var(--font-head);font-weight:700;z-index:2}

/* ===================== Differentials ===================== */
.diff-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.diff{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s}
.diff:hover{transform:translateY(-6px);box-shadow:var(--shadow);background:#fff}
.diff__ic{width:52px;height:52px;border-radius:14px;background:var(--navy-800);color:#fff;display:grid;place-items:center;margin-bottom:18px}
.diff__ic svg{width:26px;height:26px}
.diff p{color:var(--slate-700);font-weight:600;font-size:1.02rem}
.diff--wide{grid-column:span 2;background:linear-gradient(130deg,var(--navy-800),var(--blue-600));color:#fff;
  display:flex;flex-direction:column;justify-content:center}
.diff--wide p{color:#fff}
.diff--wide .diff__ic{background:rgba(255,255,255,.16)}

/* ===================== Contact ===================== */
.contact{position:relative;color:#fff;overflow:hidden;background:var(--navy-900)}
.contact__bg{position:absolute;inset:0;z-index:0;opacity:.28}
.contact__bg img{width:100%;height:100%;object-fit:cover}
.contact::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,var(--navy-900) 30%,rgba(8,32,63,.75))}
.contact .container{position:relative;z-index:2}
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,5vw,72px);align-items:center}
.contact h2{color:#fff}
.contact__intro{color:rgba(255,255,255,.82);margin-top:20px;font-size:1.12rem;max-width:46ch}
.contact__actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}
.contact-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);
  padding:36px;backdrop-filter:blur(8px)}
.contact-list{display:grid;gap:8px}
.contact-item{display:flex;gap:16px;align-items:center;padding:16px;border-radius:16px;transition:background .25s}
.contact-item:hover{background:rgba(255,255,255,.06)}
.contact-item .ic{width:48px;height:48px;border-radius:14px;background:rgba(91,155,255,.16);color:var(--blue-400);
  display:grid;place-items:center;flex-shrink:0}
.contact-item .ic svg{width:23px;height:23px}
.contact-item small{display:block;color:rgba(255,255,255,.55);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}
.contact-item b{font-family:var(--font-head);font-weight:600;font-size:1.04rem;color:#fff;word-break:break-word}

/* ===================== Footer ===================== */
.footer{background:var(--navy-900);color:rgba(255,255,255,.7);padding:56px 0 30px;border-top:1px solid rgba(255,255,255,.08)}
.footer__top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:30px;align-items:flex-start;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer .brand{color:#fff}
.footer__desc{max-width:36ch;margin-top:16px;font-size:.96rem}
.footer__cols{display:flex;gap:60px;flex-wrap:wrap}
.footer__col h4{color:#fff;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px}
.footer__col a,.footer__col p{display:block;color:rgba(255,255,255,.65);font-size:.95rem;margin-bottom:10px;transition:color .2s}
.footer__col a:hover{color:#fff}
.footer__bottom{margin-top:26px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.86rem;color:rgba(255,255,255,.5)}

/* ===================== WhatsApp float ===================== */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:40;width:60px;height:60px;border-radius:50%;
  background:var(--whatsapp);display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(37,211,102,.7);
  transition:transform .3s var(--ease)}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:32px;height:32px;fill:#fff}
.wa-float::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--whatsapp);animation:pulse 2.4s infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.7);opacity:0}}

/* ===================== Reveal animation ===================== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}
  .hero__bg img{animation:none;transform:none}}

/* ===================== Responsive ===================== */
@media(max-width:960px){
  .nav,.header__cta .btn{display:none}
  .nav-toggle{display:flex}
  .header__cta{gap:0}
  .nav.open{display:flex;position:absolute;top:calc(100% + 10px);left:0;right:0;flex-direction:column;
    background:#fff;border-radius:22px;padding:14px;box-shadow:var(--shadow-lg);gap:2px}
  .nav.open a{width:100%;padding:14px 18px}
  .split,.contact-grid{grid-template-columns:1fr}
  .split--rev .split__media{order:0}
  .cards{grid-template-columns:1fr 1fr}
  .diff-grid{grid-template-columns:repeat(2,1fr)}
  .diff--wide{grid-column:span 2}
  .fleet-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  body{font-size:16px}
  .container{padding-inline:18px}
  .cards,.diff-grid{grid-template-columns:1fr}
  .diff--wide{grid-column:span 1}
  .media-stack{grid-template-columns:1fr}
  .hero__stats{gap:14px 26px}
  .contact-card{padding:24px}
  .footer__cols{gap:34px}
}