:root{
  --bg:#04101f;
  --bg2:#071a35;
  --bg3:#0a2142;
  --panel:rgba(10,22,48,.80);
  --panel-2:rgba(12,26,56,.88);
  --line:rgba(103,174,255,.18);
  --line-strong:rgba(103,174,255,.35);
  --text:#eaf4ff;
  --muted:#9fb7d9;
  --accent:#67e2ff;
  --accent2:#6d7dff;
  --success-bg:rgba(39,174,96,.15);
  --success-bd:rgba(39,174,96,.35);
  --error-bg:rgba(231,76,60,.15);
  --error-bd:rgba(231,76,60,.35);
  --shadow:0 18px 60px rgba(0,0,0,.18);
  --radius:24px;
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(103,226,255,.10), transparent 25%),
    radial-gradient(circle at top right, rgba(109,125,255,.10), transparent 22%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 50%, var(--bg) 100%);
  overflow-x:hidden;
}

img{
  max-width:100%;
  height:auto;
  display:block;
}

a{
  transition:.25s ease;
  color:inherit;
}

.container{
  width:min(1180px, calc(100% - 40px));
  margin:0 auto;
}

/* HEADER */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(4,14,30,.78);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}

.header-wrap{
  min-height:78px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:#fff;
  font-weight:800;
  letter-spacing:.04em;
}

.brand img{
  width:42px;
  height:42px;
  border-radius:50%;
  object-fit:cover;
  box-shadow:0 0 0 3px rgba(255,255,255,.03);
}

.brand span{
  font-size:28px;
}

.nav{
  display:flex;
  align-items:center;
  gap:28px;
}

.nav a{
  color:var(--muted);
  text-decoration:none;
  font-size:17px;
  position:relative;
}

.nav a:hover{
  color:#fff;
}

.nav a:not(.btn-admin)::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-8px;
  width:0;
  height:2px;
  border-radius:10px;
  background:linear-gradient(90deg, var(--accent), var(--accent2));
  transition:width .25s ease;
}

.nav a:not(.btn-admin):hover::after{
  width:100%;
}

.btn-admin{
  padding:12px 18px;
  border:1px solid rgba(103,174,255,.18);
  background:rgba(255,255,255,.03);
  border-radius:16px;
}

.btn-admin:hover{
  border-color:rgba(103,226,255,.45);
  background:rgba(255,255,255,.06);
  color:#fff;
}

.menu-toggle{
  display:none;
  background:transparent;
  color:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 14px;
  font-size:20px;
  cursor:pointer;
}

/* BANNER */
.top-banner{
  padding:26px 0 10px;
  background:linear-gradient(180deg, rgba(8,19,40,.96), rgba(5,15,30,.96));
  border-bottom:1px solid rgba(103,174,255,.18);
}

.top-banner-wrap{
  display:grid;
  grid-template-columns:1.3fr .9fr;
  gap:24px;
  align-items:center;
}

.top-banner-content h2{
  margin:0 0 12px;
  font-size:clamp(28px, 4vw, 46px);
  line-height:1.05;
}

.top-banner-content p{
  margin:0 0 18px;
  color:var(--muted);
  line-height:1.75;
  font-size:17px;
}

.banner-image img{
  border-radius:22px;
  border:1px solid rgba(103,174,255,.18);
  box-shadow:var(--shadow);
}

/* HERO */
.hero{
  padding:110px 0 80px;
  position:relative;
  overflow:hidden;
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 20% 20%, rgba(96,216,255,.18), transparent 28%),
    radial-gradient(circle at 80% 30%, rgba(61,123,255,.18), transparent 30%),
    radial-gradient(circle at 50% 80%, rgba(96,216,255,.10), transparent 26%);
  pointer-events:none;
}

.hero-simple{
  position:relative;
  z-index:1;
}

.hero-copy{
  max-width:760px;
}

.eyebrow{
  display:inline-block;
  margin-bottom:18px;
  color:var(--accent);
  font-size:14px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
}

.hero-copy h1{
  margin:0 0 18px;
  font-size:clamp(42px, 5vw, 72px);
  line-height:.95;
  letter-spacing:-.04em;
  max-width:820px;
}

.hero-copy p{
  margin:0 0 28px;
  max-width:680px;
  color:var(--muted);
  font-size:clamp(17px, 1.4vw, 20px);
  line-height:1.75;
}

.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

/* BUTTONS */
.btn-primary,
.btn-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:180px;
  padding:14px 22px;
  border-radius:16px;
  text-decoration:none;
  font-weight:700;
  border:none;
  cursor:pointer;
}

.btn-primary{
  background:linear-gradient(90deg, #5fe0ff 0%, #6d7dff 100%);
  color:#04101f;
  box-shadow:0 10px 24px rgba(95,224,255,.18);
}

.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 30px rgba(95,224,255,.24);
}

.btn-secondary{
  border:1px solid rgba(103,174,255,.22);
  background:rgba(255,255,255,.03);
  color:#ffffff;
}

.btn-secondary:hover{
  border-color:rgba(103,226,255,.45);
  background:rgba(255,255,255,.06);
}

/* SECTIONS */
.section{
  padding:78px 0;
}

.alt-section{
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
  border-top:1px solid rgba(255,255,255,.03);
  border-bottom:1px solid rgba(255,255,255,.03);
}

.section-kicker{
  color:var(--accent);
  text-transform:uppercase;
  letter-spacing:.16em;
  font-weight:700;
  font-size:13px;
  margin:0 0 12px;
}

.section-title{
  margin:0 0 14px;
  font-size:clamp(30px, 3vw, 48px);
  line-height:1.05;
}

.section-text{
  margin:0;
  color:var(--muted);
  font-size:18px;
  line-height:1.75;
  max-width:780px;
}

/* CARDS */
.cards{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
  margin-top:28px;
}

.card{
  background:linear-gradient(180deg, rgba(14,29,61,.82), rgba(7,18,39,.88));
  border:1px solid var(--line);
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow);
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.card:hover{
  transform:translateY(-4px);
  border-color:rgba(103,226,255,.28);
  box-shadow:0 24px 70px rgba(0,0,0,.22);
}

.card h3{
  margin:0 0 12px;
  font-size:23px;
  line-height:1.2;
  color:#fff;
}

.card p{
  margin:0;
  color:var(--muted);
  line-height:1.75;
  font-size:16px;
}

.card p + p{
  margin-top:12px;
}

/* COGNISALUD */
#cognisalud{
  position:relative;
  overflow:hidden;
}

#cognisalud::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 15% 20%, rgba(90,160,255,.10), transparent 22%),
    radial-gradient(circle at 85% 80%, rgba(103,226,255,.08), transparent 24%);
  pointer-events:none;
}

#cognisalud .container{
  position:relative;
  z-index:1;
}

#cognisalud .card{
  position:relative;
  overflow:hidden;
}

#cognisalud .card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg, var(--accent), var(--accent2));
  opacity:.8;
}

#cognisalud .card strong{
  color:#fff;
}

/* ALERTS */
.alert{
  padding:14px 16px;
  border-radius:14px;
  margin:24px 0;
  border:1px solid transparent;
}

.alert.success{
  background:var(--success-bg);
  border-color:var(--success-bd);
}

.alert.error{
  background:var(--error-bg);
  border-color:var(--error-bd);
}

/* FORM */
.contact-form{
  margin-top:30px;
  background:linear-gradient(180deg, rgba(14,29,61,.82), rgba(7,18,39,.88));
  border:1px solid var(--line);
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow);
}

.form-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
  margin-bottom:20px;
}

.form-group{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.form-group.full{
  grid-column:1 / -1;
}

.form-group label{
  font-size:14px;
  color:#d9e9ff;
}

.form-group input,
.form-group textarea{
  width:100%;
  padding:14px 16px;
  border-radius:16px;
  border:1px solid rgba(103,174,255,.18);
  background:rgba(255,255,255,.03);
  color:#fff;
  outline:none;
  font-size:16px;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.form-group input:focus,
.form-group textarea:focus{
  border-color:rgba(103,226,255,.45);
  box-shadow:0 0 0 3px rgba(103,226,255,.08);
  background:rgba(255,255,255,.05);
}

textarea{
  resize:vertical;
  min-height:140px;
}

/* FOOTER */
.site-footer{
  border-top:1px solid var(--line);
  padding:28px 0 45px;
  color:var(--muted);
  font-size:15px;
  background:rgba(2,8,16,.4);
}

.footer-wrap{
  display:grid;
  grid-template-columns:1fr 1fr auto;
  gap:24px;
  align-items:start;
}

.site-footer a{
  color:#dceaff;
  text-decoration:none;
}

.site-footer a:hover{
  color:#fff;
}

.social-links{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}

.social-icon{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  text-decoration:none;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(103,174,255,.18);
  color:#dceaff;
}

.social-icon:hover{
  background:rgba(255,255,255,.08);
  border-color:rgba(103,226,255,.45);
  color:#fff;
  transform:translateY(-2px);
}

.social-icon svg{
  width:20px;
  height:20px;
}

/* WHATSAPP */
.whatsapp-float{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:120;
  width:58px;
  height:58px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  text-decoration:none;
  color:#04101f;
  background:linear-gradient(90deg, #5fe0ff 0%, #6d7dff 100%);
  box-shadow:0 14px 30px rgba(95,224,255,.22);
}

.whatsapp-float svg{
  width:24px;
  height:24px;
}

.whatsapp-float:hover{
  transform:translateY(-2px);
}

/* ADMIN */
.admin-wrap{
  width:min(1100px, calc(100% - 40px));
  margin:40px auto;
}

.admin-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  margin-bottom:24px;
}

.admin-card{
  background:linear-gradient(180deg, rgba(14,29,61,.82), rgba(7,18,39,.88));
  border:1px solid rgba(103,174,255,.18);
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow);
}

.admin-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
}

.admin-group{
  display:flex;
  flex-direction:column;
  gap:8px;
}

.admin-group.full{
  grid-column:1 / -1;
}

.admin-group label{
  font-size:14px;
  color:#d9e9ff;
  font-weight:600;
}

.admin-group input,
.admin-group textarea{
  width:100%;
  padding:14px 16px;
  border-radius:16px;
  border:1px solid rgba(103,174,255,.18);
  background:rgba(255,255,255,.03);
  color:#fff;
  outline:none;
  font-size:16px;
}

.admin-group textarea{
  min-height:120px;
  resize:vertical;
}

.admin-actions{
  margin-top:22px;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}

.checkbox-line{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:6px;
}

.small-help{
  color:#9fb7d9;
  font-size:13px;
  line-height:1.5;
}

/* RESPONSIVE */
@media (max-width: 1024px){
  .cards{
    grid-template-columns:repeat(2, 1fr);
  }

  .footer-wrap{
    grid-template-columns:1fr;
  }

  .top-banner-wrap{
    grid-template-columns:1fr;
  }
}

@media (max-width: 768px){
  .menu-toggle{
    display:block;
  }

  .header-wrap{
    min-height:auto;
    padding:14px 0;
    flex-wrap:wrap;
  }

  .nav{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:flex-start;
    gap:14px;
    padding:14px 0 6px;
  }

  .nav.show{
    display:flex;
  }

  .brand span{
    font-size:22px;
  }

  .hero{
    padding:72px 0 50px;
  }

  .hero-copy h1{
    font-size:clamp(34px, 10vw, 52px);
  }

  .hero-copy p,
  .section-text{
    font-size:16px;
  }

  .section{
    padding:62px 0;
  }

  .cards,
  .form-grid,
  .admin-grid{
    grid-template-columns:1fr;
  }

  .btn-primary,
  .btn-secondary{
    width:100%;
  }

  .hero-actions{
    flex-direction:column;
  }

  .card{
    padding:20px;
  }

  .whatsapp-float{
    right:14px;
    bottom:14px;
    width:54px;
    height:54px;
  }
}

@media (max-width: 480px){
  .container{
    width:min(100% - 24px, 1180px);
  }

  .brand img{
    width:38px;
    height:38px;
  }

  .brand span{
    font-size:20px;
  }

  .section-title{
    font-size:clamp(28px, 8vw, 38px);
  }

  .card h3{
    font-size:20px;
  }

  .card p,
  .form-group input,
  .form-group textarea,
  .admin-group input,
  .admin-group textarea{
    font-size:15px;
  }
}