/* ===== Design tokens ===== */
:root{
  --bg: #07080d;
  --bg-alt: #0b0d15;
  --surface: rgba(255,255,255,0.04);
  --surface-strong: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.09);
  --text: #f3f4f8;
  --text-dim: #a6a9bd;
  --text-faint: #6e7186;

  --accent-1: #7c5cff;   /* violeta */
  --accent-2: #33e6c5;   /* verde-agua */
  --accent-3: #ff6b6b;   /* coral, para CTA calida */

  --gradient: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  --gradient-cta: linear-gradient(120deg, var(--accent-1), #a855f7);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --shadow-glow: 0 0 0 1px rgba(255,255,255,0.06), 0 20px 60px -20px rgba(124,92,255,0.35);
  --container: 1180px;

  --ease: cubic-bezier(.16,.8,.24,1);
}

@media (prefers-color-scheme: light){
  :root{
    --bg: #f6f6fb;
    --bg-alt: #ffffff;
    --surface: rgba(10,10,20,0.03);
    --surface-strong: rgba(10,10,20,0.05);
    --border: rgba(10,10,25,0.09);
    --text: #14151f;
    --text-dim: #4c4f63;
    --text-faint: #8a8da3;
    --shadow-glow: 0 0 0 1px rgba(10,10,25,0.05), 0 20px 60px -25px rgba(124,92,255,0.35);
  }
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{
  font-family:'Space Grotesk','Inter',sans-serif;
  line-height:1.15;
  margin:0 0 .6em;
  letter-spacing:-0.01em;
}
p{margin:0 0 1em; color:var(--text-dim);}
a{color:inherit; text-decoration:none;}
ul{margin:0; padding:0; list-style:none;}
img{max-width:100%; display:block;}
button{font-family:inherit;}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.text-gradient{
  background:var(--gradient);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.noise-overlay{
  position:fixed; inset:0; pointer-events:none; z-index:2000;
  opacity:.025; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 26px;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--gradient-cta);
  color:#fff;
  box-shadow:0 8px 30px -8px rgba(124,92,255,.6);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 12px 34px -6px rgba(124,92,255,.75); }
.btn-ghost{
  background:transparent;
  border-color:var(--border);
  color:var(--text);
}
.btn-ghost:hover{ background:var(--surface); border-color:rgba(255,255,255,0.2); }
.btn-sm{ padding:10px 18px; font-size:.85rem; }
.btn-lg{ padding:17px 34px; font-size:1.05rem; }
.btn-block{ width:100%; }

/* ===== Nav ===== */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:18px 0;
  transition:padding .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  padding:12px 0;
  background:rgba(7,8,13,0.72);
  backdrop-filter:blur(16px) saturate(160%);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  border-bottom-color:var(--border);
}
@media (prefers-color-scheme: light){
  .nav.scrolled{ background:rgba(246,246,251,0.78); }
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.logo{
  display:flex; align-items:center; gap:8px;
  font-family:'Space Grotesk',sans-serif;
  font-weight:700; font-size:1.15rem; letter-spacing:.02em;
}
.logo-mark{
  color:var(--accent-1);
  filter:drop-shadow(0 0 8px rgba(124,92,255,.6));
}
.nav-links{ display:flex; gap:32px; }
.nav-links a{
  font-size:.92rem; font-weight:500; color:var(--text-dim);
  transition:color .2s;
  position:relative;
}
.nav-links a:hover{ color:var(--text); }
.nav-actions{ display:flex; align-items:center; gap:16px; }

.nav-toggle{
  display:none;
  flex-direction:column; justify-content:center; gap:5px;
  width:44px; height:44px;
  background:var(--surface); border:1px solid var(--border); border-radius:10px;
  flex-shrink:0;
}
.nav-toggle span{ width:16px; height:2px; background:var(--text); margin:0 auto; transition:.3s; }
.nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:168px 0 110px;
  overflow:hidden;
}
.hero-bg{ position:absolute; inset:0; z-index:0; pointer-events:none; }
.blob{
  position:absolute; border-radius:50%;
  filter:blur(90px);
  opacity:.35;
}
.blob-1{
  width:520px; height:520px; top:-160px; right:-120px;
  background:radial-gradient(circle, var(--accent-1), transparent 70%);
}
.blob-2{
  width:420px; height:420px; bottom:-180px; left:-140px;
  background:radial-gradient(circle, var(--accent-2), transparent 70%);
  opacity:.25;
}
.grid-overlay{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 70% 55% at 50% 20%, black 10%, transparent 75%);
  opacity:.5;
}

.hero-grid{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center;
}

.badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 16px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--border);
  font-size:.82rem; font-weight:500; color:var(--text-dim);
  margin-bottom:22px;
}
.badge-dot{
  width:7px; height:7px; border-radius:50%;
  background:var(--accent-2);
  box-shadow:0 0 10px var(--accent-2);
}

.hero-copy h1{ font-size:clamp(1.8rem, 4.4vw, 3.6rem); }
.hero-sub{ font-size:1.08rem; max-width:52ch; }

.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; margin:28px 0 34px; }
.hero-actions .btn-ghost svg{ transition:transform .2s; }
.hero-actions .btn-ghost:hover svg{ transform:translateX(3px); }

.hero-proof{ display:flex; align-items:center; gap:14px; }
.hero-proof p{ margin:0; font-size:.88rem; color:var(--text-faint); }
.hero-proof strong{ color:var(--text); }
.avatars{ display:flex; }
.avatars span{
  width:30px; height:30px; border-radius:50%;
  background:var(--gradient);
  border:2px solid var(--bg);
  margin-left:-8px;
}
.avatars span:first-child{ margin-left:0; }

/* Hero visual */
.hero-visual{ position:relative; height:460px; }
.glass-card{
  background:var(--surface-strong);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  box-shadow:var(--shadow-glow);
}
.card-main{
  position:absolute; inset:58px 30px 66px 0;
  z-index:1;
  padding:28px;
  display:flex; flex-direction:column; gap:20px;
}
.card-row{ display:flex; justify-content:space-between; align-items:center; font-size:.85rem; color:var(--text-faint); }
.card-row strong{ font-family:'Space Grotesk',sans-serif; font-size:1.3rem; color:var(--text); }
.card-row-split{ display:flex; gap:32px; }
.card-row-split > div{ display:flex; flex-direction:column; gap:4px; }
.card-row-split strong{ font-size:1.5rem; }
.mini-chart{ flex:1; min-height:80px; }
.mini-chart svg{ width:100%; height:100%; }

.card-float{
  position:absolute;
  z-index:2;
  padding:12px 18px;
  border-radius:14px;
  font-size:.8rem; font-weight:600;
  display:flex; align-items:center; gap:10px;
  animation:float 6s ease-in-out infinite;
}
.card-float-1{ top:0; right:4%; animation-delay:.4s; }
.card-float-2{ bottom:0; left:-2%; display:flex; flex-direction:column; align-items:flex-start; gap:6px; font-size:1.1rem; }
.card-float-2 span{ font-size:.72rem; color:var(--text-faint); font-weight:500; }
.pulse-dot{
  width:8px; height:8px; border-radius:50%; background:var(--accent-2);
  box-shadow:0 0 0 0 rgba(51,230,197,.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(51,230,197,.55); }
  70%{ box-shadow:0 0 0 10px rgba(51,230,197,0); }
  100%{ box-shadow:0 0 0 0 rgba(51,230,197,0); }
}
@keyframes float{
  0%,100%{ transform:translateY(0); }
  50%{ transform:translateY(-12px); }
}

/* ===== Stats ===== */
.stats-section{
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:52px 0;
  background:var(--bg-alt);
}
.stats-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center;
}
.stat strong{
  display:block;
  font-family:'Space Grotesk',sans-serif;
  font-size:clamp(1.8rem,3vw,2.6rem);
  background:var(--gradient);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.stat span{ font-size:.88rem; color:var(--text-faint); }

/* ===== Sections ===== */
.section{ padding:120px 0; }
.section-alt{ background:var(--bg-alt); }

.section-head{ max-width:640px; margin:0 auto 56px; text-align:center; }
.section-head p{ font-size:1.05rem; }
.section-head h2{ font-size:clamp(1.7rem,3vw,2.4rem); }

.eyebrow{
  display:inline-block;
  font-size:.8rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  color:var(--accent-2);
  margin-bottom:14px;
}

.section-lead{ font-size:1.05rem; max-width:52ch; }

/* Services */
.cards-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); gap:20px;
}
.service-card{
  padding:28px 24px;
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  background:var(--surface);
  transition:transform .3s var(--ease), border-color .3s, background .3s;
}
.service-card:hover{
  transform:translateY(-4px);
  border-color:rgba(124,92,255,.4);
  background:var(--surface-strong);
}
.icon-box{
  width:46px; height:46px;
  display:flex; align-items:center; justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg, rgba(124,92,255,.18), rgba(51,230,197,.14));
  color:var(--accent-1);
  margin-bottom:18px;
}
.service-card h3{ font-size:1.08rem; margin-bottom:8px; }
.service-card p{ font-size:.9rem; margin:0; }

/* Timeline */
.timeline{
  display:grid; grid-template-columns:repeat(5,1fr); gap:20px;
  position:relative;
}
.timeline::before{
  content:"";
  position:absolute; top:26px; left:0; right:0; height:1px;
  background:linear-gradient(90deg, transparent, var(--border) 10%, var(--border) 90%, transparent);
  z-index:0;
}
.timeline-item{ position:relative; z-index:1; padding-right:8px; }
.timeline-num{
  width:52px; height:52px;
  display:flex; align-items:center; justify-content:center;
  border-radius:50%;
  background:var(--bg-alt);
  border:1px solid var(--border);
  font-family:'Space Grotesk',sans-serif; font-weight:700;
  color:var(--accent-1);
  margin-bottom:18px;
}
.timeline-item h3{ font-size:1.02rem; margin-bottom:8px; }
.timeline-item p{ font-size:.88rem; }

/* Why us */
.why-grid{
  display:grid; grid-template-columns:1.1fr .9fr; gap:64px; align-items:center;
}
.check-list{ margin-top:28px; display:flex; flex-direction:column; gap:14px; }
.check-list li{
  position:relative; padding-left:30px; font-size:.96rem; color:var(--text-dim);
}
.check-list li::before{
  content:"✓";
  position:absolute; left:0; top:-1px;
  width:20px; height:20px;
  display:flex; align-items:center; justify-content:center;
  border-radius:50%;
  background:var(--gradient);
  color:#08090f;
  font-size:.72rem; font-weight:800;
}
.why-card{ padding:32px; }
.why-row{ display:flex; align-items:center; gap:16px; margin-bottom:18px; }
.why-row span{ width:80px; font-size:.85rem; color:var(--text-dim); flex-shrink:0; }
.bar{ flex:1; height:8px; border-radius:999px; background:var(--surface); overflow:hidden; }
.bar i{
  display:block; height:100%; width:var(--w);
  background:var(--gradient); border-radius:999px;
}
.why-caption{ margin:12px 0 0; font-size:.78rem; color:var(--text-faint); }

/* Results */
.results-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
  margin-bottom:64px;
}
.result-card{
  text-align:center; padding:32px 20px;
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  background:var(--surface);
}
.result-card strong{ display:block; font-family:'Space Grotesk',sans-serif; font-size:2.1rem; margin-bottom:8px; }
.result-card span{ font-size:.86rem; color:var(--text-faint); }

.testimonials{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.testimonial{
  margin:0; padding:28px;
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  background:var(--surface);
}
.testimonial p{ font-size:.95rem; color:var(--text); margin-bottom:20px; }
.testimonial footer{ display:flex; align-items:center; gap:12px; }
.testimonial footer strong{ display:block; font-size:.88rem; }
.testimonial footer span{ font-size:.78rem; color:var(--text-faint); }
.avatar-sm{ width:38px; height:38px; border-radius:50%; background:var(--gradient); flex-shrink:0; }

/* CTA */
.cta-section{ padding:100px 0; }
.cta-inner{
  text-align:center;
  padding:64px 40px;
  border-radius:var(--radius-lg);
  background:linear-gradient(135deg, rgba(124,92,255,.14), rgba(51,230,197,.08));
  border:1px solid var(--border);
  max-width:820px;
}
.cta-inner h2{ font-size:clamp(1.8rem,3.4vw,2.5rem); }
.cta-inner p{ font-size:1.05rem; max-width:50ch; margin:0 auto 32px; }

/* Contact */
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:64px; align-items:start; }
.contact-info{ margin-top:36px; display:flex; flex-direction:column; gap:18px; }
.contact-info div{ display:flex; flex-direction:column; gap:2px; }
.contact-info strong{ font-size:.82rem; text-transform:uppercase; letter-spacing:.06em; color:var(--accent-2); }
.contact-info span{ color:var(--text-dim); font-size:.95rem; }

.contact-form{ padding:36px; display:flex; flex-direction:column; gap:18px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.contact-form label{ display:flex; flex-direction:column; gap:8px; font-size:.85rem; color:var(--text-dim); font-weight:500; }
.contact-form input, .contact-form select, .contact-form textarea{
  font-family:inherit; font-size:.95rem;
  padding:12px 14px;
  border-radius:10px;
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text);
  outline:none;
  transition:border-color .2s, background .2s;
  resize:vertical;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus{
  border-color:var(--accent-1);
  background:var(--surface-strong);
}
.form-note{ font-size:.85rem; color:var(--accent-2); min-height:1.2em; margin:0; }

/* Footer */
.footer{ border-top:1px solid var(--border); padding:64px 0 28px; background:var(--bg-alt); }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:48px; }
.footer-grid > div:first-child p{ font-size:.88rem; margin-top:14px; max-width:32ch; }
.footer h4{ font-size:.85rem; text-transform:uppercase; letter-spacing:.06em; color:var(--text-faint); margin-bottom:16px; }
.footer-grid a, .footer-grid span{ display:block; font-size:.9rem; color:var(--text-dim); margin-bottom:10px; }
.footer-grid a:hover{ color:var(--text); }
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  padding-top:24px; border-top:1px solid var(--border);
  font-size:.82rem; color:var(--text-faint);
}

/* Back to top */
.back-to-top{
  position:fixed; bottom:28px; right:28px; z-index:900;
  width:46px; height:46px; border-radius:50%;
  background:var(--surface-strong); border:1px solid var(--border);
  color:var(--text);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:opacity .3s, transform .3s, visibility .3s;
  backdrop-filter:blur(12px);
}
.back-to-top.visible{ opacity:1; visibility:visible; transform:translateY(0); }

/* ===== Reveal animation ===== */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.in-view{ opacity:1; transform:translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1000px){
  .cards-grid{ grid-template-columns:repeat(2,1fr); }
  .timeline{ grid-template-columns:repeat(3,1fr); row-gap:36px; }
  .timeline::before{ display:none; }
  .why-grid, .contact-grid{ grid-template-columns:1fr; gap:40px; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); row-gap:32px; }
  .results-grid{ grid-template-columns:repeat(2,1fr); }
  .testimonials{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; row-gap:32px; }
}

@media (max-width: 860px){
  .nav-links{
    position:fixed; top:0; right:0; bottom:0;
    width:min(78vw, 320px);
    background:var(--bg-alt);
    border-left:1px solid var(--border);
    flex-direction:column;
    padding:100px 32px 32px;
    gap:26px;
    transform:translateX(100%);
    transition:transform .35s var(--ease);
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ font-size:1.05rem; }
  .nav-toggle{ display:flex; }
  .nav-actions .btn-sm{ display:none; }

  .hero{ padding:140px 0 64px; }
  .hero-grid{ grid-template-columns:1fr; gap:44px; }
  .hero-visual{ height:380px; order:-1; }
  .card-main{ inset:46px 24px 64px 0; }

  .hero-actions{ margin:24px 0 28px; }
  .hero-actions .btn{ width:100%; }

  .section{ padding:72px 0; }
  .section-head{ margin-bottom:40px; }

  .why-row span{ width:104px; font-size:.82rem; }

  .cta-inner{ padding:48px 28px; }
  .cta-inner .btn{ width:100%; }
}

@media (max-width: 640px){
  .container{ padding:0 20px; }
  .cards-grid{ grid-template-columns:1fr; }
  .timeline{ grid-template-columns:1fr; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .results-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .cta-inner{ padding:44px 24px; }
  .section{ padding:64px 0; }
  .footer-bottom{ flex-direction:column; }

  .badge{ font-size:.76rem; padding:7px 14px; }
  .hero-sub{ font-size:1rem; }

  .card-main{ padding:20px; gap:14px; }
  .card-row{ font-size:.78rem; }
  .card-row strong{ font-size:1.15rem; }
  .card-row-split{ gap:14px; }
  .card-row-split strong{ font-size:1.25rem; }

  .card-float{ padding:10px 14px; font-size:.72rem; }
  .card-float-2{ font-size:.95rem; }

  .avatars span{ width:26px; height:26px; }
}

@media (max-width: 420px){
  .stats-grid{ grid-template-columns:1fr; gap:26px; }
  .hero-visual{ height:400px; }
  .card-main{ inset:44px 16px 78px 0; }
  .card-float-2{ left:0; }
}