:root{--navy:#061c34;--blue:#168cff;--ice:#eaf5ff;--white:#fff;--text:#10283f;--muted:#60758a;--line:rgba(16,55,90,.13)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:#f7fbff;font-family:"Segoe UI",Arial,sans-serif;line-height:1.55}a{color:inherit}.site-header{position:fixed;z-index:20;inset:0 0 auto;height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(24px,5vw,86px);color:#fff;background:rgba(3,21,40,.82);border-bottom:1px solid rgba(255,255,255,.12);backdrop-filter:blur(14px)}.brand img{display:block;width:185px;max-height:55px;object-fit:contain}nav{display:flex;align-items:center;gap:clamp(16px,2.5vw,38px)}nav a{text-decoration:none;font-weight:600}.nav-action{padding:10px 20px;border:1px solid rgba(255,255,255,.5);border-radius:999px}.hero{min-height:760px;height:100vh;display:grid;place-items:center;position:relative;overflow:hidden;color:#fff;background:var(--navy) url("../img/wallpaper-seta-facturacion.png") center/cover no-repeat}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(2,17,34,.9),rgba(2,17,34,.58) 46%,rgba(2,17,34,.12) 77%),linear-gradient(0deg,rgba(2,17,34,.6),transparent 45%)}.hero-content{position:relative;z-index:2;width:min(1180px,calc(100% - 48px));padding-top:70px}.eyebrow{margin:0 0 12px;color:var(--blue);font-size:.78rem;font-weight:800;letter-spacing:.19em;text-transform:uppercase}.hero .eyebrow{color:#77bcff}h1,h2,h3,p{margin-top:0}h1{max-width:760px;margin-bottom:22px;font-size:clamp(3rem,6.5vw,6.25rem);line-height:.98;letter-spacing:-.045em}.hero-copy{max-width:600px;margin-bottom:34px;color:#dbeeff;font-size:clamp(1.05rem,1.6vw,1.35rem)}.hero-actions{display:flex;flex-wrap:wrap;gap:14px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 25px;border-radius:9px;text-decoration:none;font-weight:750;transition:.18s ease}.button:hover{transform:translateY(-2px)}.button-primary{color:#fff;background:linear-gradient(135deg,#047cff,#1fa7ff);box-shadow:0 12px 30px rgba(0,132,255,.26)}.button-secondary{color:#fff;border:1px solid rgba(255,255,255,.52);background:rgba(4,26,48,.38)}.scroll-cue{position:absolute;z-index:2;bottom:28px;color:white;font-size:2rem;text-decoration:none;animation:float 1.8s ease-in-out infinite}@keyframes float{50%{transform:translateY(7px)}}.section{width:min(1180px,calc(100% - 48px));margin:0 auto;padding:105px 0}.section-heading{max-width:690px;margin-bottom:48px}h2{margin-bottom:15px;color:var(--navy);font-size:clamp(2rem,4vw,3.45rem);line-height:1.08;letter-spacing:-.035em}.section-heading>p:last-child,.contact-copy>p:last-child{color:var(--muted);font-size:1.08rem}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{min-height:260px;padding:32px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 50px rgba(5,40,72,.07)}.card-number{display:block;margin-bottom:42px;color:var(--blue);font-size:.82rem;font-weight:800}.card h3{margin-bottom:12px;color:var(--navy);font-size:1.35rem}.card p{margin:0;color:var(--muted)}.invoice-callout{width:min(1280px,calc(100% - 48px));margin:0 auto;padding:clamp(38px,6vw,70px);display:flex;align-items:center;justify-content:space-between;gap:30px;color:#fff;background:linear-gradient(120deg,#061c34,#0b416f);border-radius:24px;box-shadow:0 24px 70px rgba(3,31,57,.2)}.invoice-callout h2{color:#fff}.invoice-callout p:last-child{margin-bottom:0;color:#c9e6ff}.contact{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:60px}.contact-email{padding:32px;display:flex;flex-direction:column;overflow-wrap:anywhere;text-decoration:none;background:var(--ice);border-left:4px solid var(--blue);border-radius:0 15px 15px 0}.contact-email span{margin-bottom:6px;color:var(--muted);font-size:.83rem;text-transform:uppercase;letter-spacing:.12em}.contact-email strong{color:var(--navy);font-size:clamp(1rem,2vw,1.45rem)}footer{display:flex;align-items:center;gap:15px;padding:34px clamp(24px,5vw,86px);color:#dcecff;background:#03182c}footer img{width:40px;height:40px}footer div{display:flex;flex-direction:column}footer span{color:#85a3bf;font-size:.78rem}footer a{margin-left:auto;color:#9dcfff}@media(max-width:800px){.site-header{height:70px;padding:0 20px}.brand img{width:130px}nav>a:not(.nav-action){display:none}.nav-action{padding:8px 15px}.hero{min-height:680px;background-position:57% center}.hero-shade{background:rgba(2,17,34,.7)}.hero-content{padding-top:55px}h1{font-size:clamp(2.8rem,14vw,4.7rem)}.section{padding:78px 0}.cards,.contact{grid-template-columns:1fr}.invoice-callout{align-items:flex-start;flex-direction:column}footer{align-items:flex-start;flex-wrap:wrap}footer a{width:100%;margin:10px 0 0}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.scroll-cue{animation:none}.button{transition:none}}