* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  background:
    linear-gradient(rgba(148,163,184,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,163,184,0.035) 1px, transparent 1px),
    radial-gradient(circle at top, rgba(78,163,255,0.22), transparent 32%),
    radial-gradient(circle at bottom right, rgba(0,212,255,0.13), transparent 28%),
    linear-gradient(135deg, #050608, #080b10 50%, #0e1520);
  background-size: 42px 42px, 42px 42px, auto, auto, auto;
  color: #f8fafc;
}

body.bloqueado main { display: none; }

.header {
  padding: 22px 7%;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: rgba(5,6,8,0.72);
  backdrop-filter: blur(12px);
}

.marca {
  display: flex;
  align-items: center;
  gap: 16px;
}

.marca img {
  width: 82px;
  height: 82px;
  object-fit: contain;
  border-radius: 16px;
  border: 1px solid rgba(125,211,252,0.28);
  box-shadow: 0 0 26px rgba(56,189,248,0.18);
}

.header h1,
.card h2,
.card h3 {
  margin: 0;
}

.header p {
  color: #aab4c3;
  margin: 8px 0 0;
}

.layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 24px 48px;
  display: grid;
  gap: 18px;
}

.card {
  position: relative;
  overflow: hidden;
  background: rgba(15, 18, 25, 0.88);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 0 35px rgba(78,163,255,0.10), 0 18px 50px rgba(0,0,0,0.38);
  backdrop-filter: blur(18px);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(125,211,252,0.12), transparent 34%),
    radial-gradient(circle at top right, rgba(0,212,255,0.10), transparent 36%);
  opacity: 0;
  transition: opacity .28s ease;
}

input {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(148,163,184,0.25);
  background: rgba(2,6,23,.78);
  color: white;
  padding: 14px 16px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

input:focus {
  outline: none;
  border-color: rgba(56,189,248,.65);
  background: rgba(2,6,23,.92);
  box-shadow: 0 0 0 4px rgba(56,189,248,.10), 0 0 28px rgba(56,189,248,.16);
}

button {
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, #2563eb, #00d4ff);
  color: white;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 800;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 28px rgba(0,212,255,0.26);
}

.tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tabs button {
  background: rgba(15,23,42,.88);
  border: 1px solid rgba(148,163,184,.24);
  color: #cbd5e1;
}

.tabs button.activo {
  background: linear-gradient(135deg, #2563eb, #00d4ff);
  color: white;
  border-color: rgba(125,211,252,.50);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 16px;
}

.card p,
.card li {
  color: #aab4c3;
  line-height: 1.5;
}

.tag {
  display: inline-flex;
  width: fit-content;
  margin: 10px 0;
  padding: 6px 9px;
  border-radius: 999px;
  border: 1px solid rgba(125,211,252,.24);
  color: #7dd3fc;
  font-size: 12px;
  font-weight: 800;
}

.diagnosticos-grid {
  perspective: 1200px;
}

.diagnosticos-grid .card {
  animation: diagnosticoEntrada .42s ease both;
  min-height: 220px;
  border-color: rgba(56,189,248,0.18);
  background:
    linear-gradient(145deg, rgba(15,23,42,0.94), rgba(8,12,20,0.88)),
    rgba(15, 18, 25, 0.88);
}

.diagnosticos-grid .card:nth-child(3n + 1) { animation-delay: .02s; }
.diagnosticos-grid .card:nth-child(3n + 2) { animation-delay: .06s; }
.diagnosticos-grid .card:nth-child(3n + 3) { animation-delay: .10s; }

.diagnosticos-grid .card:hover {
  transform: translateY(-5px);
  border-color: rgba(56,189,248,0.42);
  box-shadow:
    0 0 42px rgba(56,189,248,0.16),
    0 22px 60px rgba(0,0,0,0.44);
}

.diagnosticos-grid .card:hover::before {
  opacity: 1;
}

.diagnosticos-grid .card h3 {
  position: relative;
  z-index: 1;
  color: #f8fafc;
  line-height: 1.18;
  margin-bottom: 10px;
}

.diagnosticos-grid .card h3::after {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  margin-top: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, #38bdf8, #22d3ee, transparent);
}

.diagnosticos-grid .tag {
  position: relative;
  z-index: 1;
  margin: 8px 0 12px;
  background: rgba(14,165,233,0.10);
  border-color: rgba(56,189,248,0.34);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}

.diagnosticos-grid .tag::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 14px rgba(34,211,238,0.75);
}

.diagnosticos-grid p,
.diagnosticos-grid li {
  position: relative;
  z-index: 1;
}

.diagnosticos-grid ul {
  display: grid;
  gap: 8px;
  margin: 12px 0;
  padding-left: 0;
  list-style: none;
}

.diagnosticos-grid li {
  padding: 9px 10px 9px 28px;
  border-radius: 12px;
  background: rgba(2,6,23,0.42);
  border: 1px solid rgba(148,163,184,0.10);
}

.diagnosticos-grid li::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 15px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 12px rgba(56,189,248,0.75);
}

.diagnosticos-grid p strong {
  color: #e0f2fe;
}

@keyframes diagnosticoEntrada {
  from {
    opacity: 0;
    transform: translateY(12px) scale(.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

ul {
  padding-left: 20px;
}

@media (max-width: 800px) {
  .header {
    display: grid;
  }
}