/* ===============================
   VARIABLES – WHITE LABEL SAAS
================================*/
:root{
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --accent:#22c55e;
  --bg:#f8fafc;
  --bg-card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e5e7eb;
  --radius:20px;
  --shadow:0 20px 40px rgba(0,0,0,.08);
}

/* DARK / CORPORATE */
body.dark{
  --bg:#0b1220;
  --bg-card:#111827;
  --text:#e5e7eb;
  --muted:#9ca3af;
  --border:#1f2937;
}

/* ===============================
   RESET
================================*/
*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}

/* ===============================
   HERO SAAS $$$
================================*/
header{
  position:relative;
  padding:90px 20px 120px;
  background:
    radial-gradient(circle at 20% 20%,rgba(37,99,235,.25),transparent 40%),
    linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:white;
  overflow:hidden;
}
.hero{
  max-width:1200px;
  margin:auto;
  display:grid;
  gap:50px;
}
.hero h1{
  font-size:clamp(2.3rem,6vw,3.5rem);
  font-weight:800;
  line-height:1.1;
}
.hero p{
  font-size:1.15rem;
  max-width:520px;
  opacity:.95;
}
.hero-cta{
  display:flex;
  gap:15px;
  flex-wrap:wrap;
}
.cta{
  position:relative;
  background:var(--accent);
  padding:16px 34px;
  border-radius:999px;
  font-weight:700;
  color:white;
  box-shadow:0 20px 40px rgba(0,0,0,.3);
  transition:.3s;
}
.cta.secondary{
  background:rgba(255,255,255,.15);
}
.cta:hover{
  transform:translateY(-3px) scale(1.03);
}

/* MOCKUP DASHBOARD */
.hero-mockup{
  position:relative;
  animation:float 6s ease-in-out infinite;
  filter:drop-shadow(0 30px 60px rgba(0,0,0,.35));
}
@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-12px)}
}

/* ===============================
   SECTIONS
================================*/
section{
  padding:90px 20px;
  max-width:1200px;
  margin:auto;
}
.section-title{
  text-align:center;
  margin-bottom:50px;
}
.section-title h2{
  font-size:clamp(1.8rem,4vw,2.6rem);
  font-weight:800;
}
.section-title p{
  color:var(--muted);
  max-width:600px;
  margin:10px auto 0;
}

/* ===============================
   PROBLEMAS / CARDS
================================*/
.grid{
  display:grid;
  gap:30px;
}
.card{
  position:relative;
  background:var(--bg-card);
  padding:40px 30px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:.35s;
  overflow:hidden;
}
.card::before{
  content:'';
  position:absolute;
  inset:auto 0 0 0;
  height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;
  transition:.3s;
}
.card:hover{
  transform:translateY(-10px);
}
.card:hover::before{
  opacity:1;
}
.card-icon{
  width:50px;
  height:50px;
  margin-bottom:20px;
  animation:pulse 2.5s infinite;
}
.card h3{
  font-size:1.3rem;
  margin-bottom:10px;
}
.card p{
  color:var(--muted);
}
.card a{
  display:inline-block;
  margin-top:20px;
  font-weight:700;
  color:var(--primary);
}

/* ===============================
   COMO FUNCIONA
================================*/
.steps{
  display:grid;
  gap:30px;
}
.step{
  background:var(--bg-card);
  padding:30px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  display:flex;
  gap:20px;
}
.step span{
  font-size:2rem;
  font-weight:800;
  color:var(--primary);
}

/* ===============================
   FORM DEMO
================================*/
form{
  background:var(--bg-card);
  padding:40px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  display:grid;
  gap:15px;
}
input{
  padding:15px;
  border-radius:12px;
  border:1px solid var(--border);
  font-size:1rem;
  transition:.2s;
}
input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(37,99,235,.2);
}
button{
  background:var(--primary);
  color:white;
  padding:15px;
  border:none;
  border-radius:999px;
  font-weight:800;
  cursor:pointer;
  transition:.25s;
}
button:hover{
  background:var(--primary-dark);
  transform:scale(1.03);
}

/* ===============================
   TESTIMONIAL
================================*/
.testimonial{
  background:linear-gradient(135deg,#e0f2fe,#f0fdf4);
  padding:50px;
  border-radius:var(--radius);
  text-align:center;
}
.testimonial p{
  font-size:1.2rem;
  font-weight:600;
}
.testimonial span{
  display:block;
  margin-top:15px;
  color:var(--muted);
}

/* ===============================
   FOOTER
================================*/
footer{
  background:#020617;
  color:white;
  padding:60px 20px;
  text-align:center;
}

/* ===============================
   ANIMACIONES
================================*/
.reveal{
  opacity:0;
  transform:translateY(40px);
  transition:all .9s ease;
}
.reveal.active{
  opacity:1;
  transform:none;
}
@keyframes pulse{
  0%,100%{transform:scale(1)}
  50%{transform:scale(1.08)}
}

/* ===============================
   RESPONSIVE
================================*/
@media(min-width:768px){
  .hero{
    grid-template-columns:1.1fr .9fr;
    align-items:center;
  }
  .grid{
    grid-template-columns:repeat(4,1fr);
  }
  .steps{
    grid-template-columns:repeat(3,1fr);
  }
}

.card:hover .card-icon{
  stroke:#22c55e;
}