/* ====== Base ====== */
:root{
  --bg: #fbfaf7;
  --surface: rgba(255,255,255,.72);
  --surface-strong: rgba(255,255,255,.88);
  --ink: #141414;
  --muted: rgba(20,20,20,.72);
  --line: rgba(20,20,20,.12);

  --brand: #2a2a2a;     /* texto fuerte */
  --accent: #6b4b2a;    /* marrón sobrio para CTAs */
  --accent-2: #0f3b5b;  /* azul profundo sutil */

  --radius: 22px;
  --shadow: 0 18px 50px rgba(0,0,0,.08);
  --shadow-soft: 0 10px 30px rgba(0,0,0,.06);

  --max: 1100px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color: var(--ink);
  background: radial-gradient(1400px 800px at 40% -10%, rgba(255,204,128,.22), transparent 60%),
              radial-gradient(1200px 700px at 90% 20%, rgba(79,120,170,.10), transparent 55%),
              var(--bg);
  line-height: 1.6;
}

a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 22px;
}

.small{font-size:.92rem; color: var(--muted)}
.muted{color: var(--muted)}
.hr{height:1px; background: var(--line); border:0; margin: 26px 0}

.skip{
  position:absolute; left:-999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip:focus{
  left: 16px; top: 16px; width:auto; height:auto;
  background: var(--surface-strong); padding: 10px 12px; border-radius: 12px;
  box-shadow: var(--shadow-soft);
}

/* ====== Header / Nav ====== */
.header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(251,250,247,.68);
  border-bottom: 1px solid var(--line);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 650;
  letter-spacing:.2px;
}

.brand-mark{
  width: 34px; height: 34px;
  border-radius: 12px;
  background: linear-gradient(140deg, rgba(255,200,120,.65), rgba(79,120,170,.25));
  border: 1px solid rgba(20,20,20,.10);
  box-shadow: 0 10px 22px rgba(0,0,0,.08);
}

.nav-links{
  display:flex;
  align-items:center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content:flex-end;
}

.nav-links a{
  padding: 8px 10px;
  border-radius: 12px;
  color: rgba(20,20,20,.78);
}

.nav-links a:hover{background: rgba(20,20,20,.05)}
.nav-links a.active{
  background: rgba(20,20,20,.07);
  color: rgba(20,20,20,.92);
}

.nav-cta{
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(20,20,20,.86);
  color: rgba(255,255,255,.92);
  box-shadow: 0 10px 24px rgba(0,0,0,.10);
}
.nav-cta:hover{filter: brightness(1.04)}

/* ====== Hero ====== */
.hero{
  margin-top: 18px;
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow);
  min-height: 420px;
  background: #ddd;
}

.hero::before{
  content:"";
  position:absolute; inset:0;
  background:
    linear-gradient(90deg, rgba(251,250,247,.92), rgba(251,250,247,.45) 55%, rgba(251,250,247,.20)),
    linear-gradient(180deg, rgba(20,20,20,.05), transparent 40%, rgba(20,20,20,.10));
  z-index: 2;
}

.hero-bg{
  position:absolute; inset:0;
  background-position:center;
  background-size:cover;
  transform: scale(1.02);
  filter: saturate(.98) contrast(.98);
}

.hero-content{
  position: relative;
  z-index: 3;
  padding: 64px 34px;
  max-width: 760px;
}

.kicker{
  display:inline-flex;
  gap:10px;
  align-items:center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(20,20,20,.10);
  box-shadow: var(--shadow-soft);
  font-size:.92rem;
  color: rgba(20,20,20,.78);
}

.kdot{
  width:9px; height:9px; border-radius: 999px;
  background: linear-gradient(140deg, rgba(255,170,70,.95), rgba(15,59,91,.65));
  box-shadow: 0 8px 18px rgba(0,0,0,.10);
}

h1{
  margin: 16px 0 10px;
  line-height: 1.08;
  font-size: clamp(2rem, 4.1vw, 3.2rem);
  letter-spacing: -.6px;
}

.lead{
  margin: 0 0 18px;
  font-size: 1.08rem;
  color: rgba(20,20,20,.74);
  max-width: 58ch;
}

.cta-row{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.14);
  background: rgba(255,255,255,.72);
  color: rgba(20,20,20,.90);
  box-shadow: var(--shadow-soft);
  cursor:pointer;
  transition: transform .12s ease, filter .12s ease, background .12s ease;
  font-weight: 600;
}
.btn:hover{transform: translateY(-1px); filter: brightness(1.02)}
.btn.primary{
  background: rgba(107,75,42,.92);
  border-color: rgba(107,75,42,.35);
  color: rgba(255,255,255,.92);
}
.btn.ghost{
  background: rgba(255,255,255,.50);
}

/* ====== Sections ====== */
.section{
  margin: 46px 0;
}

.section-head{
  text-align:center;
  margin-bottom: 22px;
}
.section-head h2{
  margin: 0 0 6px;
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  letter-spacing: -.3px;
}
.section-head p{margin:0; color: var(--muted)}

.grid{
  display:grid;
  gap: 16px;
}
.grid.two{grid-template-columns: repeat(2, minmax(0, 1fr))}
.grid.three{grid-template-columns: repeat(3, minmax(0, 1fr))}

.card{
  background: var(--surface);
  border: 1px solid rgba(20,20,20,.10);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 18px 18px;
}

.card h3{
  margin: 0 0 6px;
  font-size: 1.08rem;
  letter-spacing: -.2px;
}
.card p{margin:0; color: var(--muted)}

.badge{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(20,20,20,.10);
  background: rgba(255,255,255,.60);
  font-size: .9rem;
  color: rgba(20,20,20,.75);
}

/* ====== Comparison ====== */
.compare{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.compare .card{
  padding: 20px;
}
.compare .card strong{
  display:block;
  margin-bottom: 8px;
}
ul.clean{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
ul.clean li{margin: 8px 0}

/* ====== Forms ====== */
form{
  display:grid;
  gap: 12px;
}

label{
  font-weight: 600;
  font-size: .95rem;
}

.field{
  display:grid;
  gap: 6px;
}

input, select, textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(20,20,20,.14);
  background: rgba(255,255,255,.78);
  outline: none;
  font: inherit;
}

textarea{min-height: 110px; resize: vertical}

input:focus, select:focus, textarea:focus{
  border-color: rgba(15,59,91,.38);
  box-shadow: 0 0 0 4px rgba(15,59,91,.08);
}

.help{
  font-size: .9rem;
  color: var(--muted);
}

.notice{
  border-left: 3px solid rgba(107,75,42,.65);
  padding: 10px 12px;
  background: rgba(255,255,255,.55);
  border-radius: 14px;
  color: rgba(20,20,20,.75);
}

.success{
  border-left-color: rgba(46,125,50,.55);
}
.error{
  border-left-color: rgba(198,40,40,.55);
}

/* ====== Footer ====== */
.footer{
  margin-top: 54px;
  padding: 26px 0 38px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .92rem;
}
.footer .row{
  display:flex;
  gap: 14px;
  justify-content: space-between;
  align-items:flex-start;
  flex-wrap: wrap;
}

/* ====== Responsive ====== */
@media (max-width: 860px){
  .grid.two, .grid.three, .compare{grid-template-columns: 1fr}
  .hero{min-height: 460px}
  .hero-content{padding: 52px 22px}
  .nav{gap: 10px}
}