:root {
  --blue-900: #0f2a5c;
  --blue-700: #1e40af;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --orange: #f97316;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;
}

* { box-sizing: border-box; }

/* El atributo hidden pierde contra cualquier regla de display de más abajo
   (.cards usa display:grid) porque los estilos del sitio le ganan al
   estilo por defecto del navegador para [hidden] — sin esto, login-view y
   cards-view se ven los dos a la vez sin importar lo que haga app.js. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(160deg, var(--blue-900) 0%, var(--blue-700) 45%, var(--blue-600) 100%);
  min-height: 100vh;
  color: var(--gray-900);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
  gap: 48px;
}

.header {
  display: flex;
  align-items: center;
  gap: 16px;
  color: #fff;
  text-align: left;
}

.header-logo {
  height: 56px;
  width: auto;
  background: #fff;
  border-radius: 12px;
  padding: 6px;
}

.header h1 {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 700;
}

.header .subtitle {
  margin: 2px 0 0;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
}

.login-box {
  background: #fff;
  border-radius: 20px;
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.25);
}

.login-box h2 {
  margin: 0 0 20px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gray-900);
}

.login-box label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin: 14px 0 6px;
}

.login-box input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--gray-100);
  border-radius: 10px;
  font-size: 0.95rem;
  background: var(--gray-50);
  color: var(--gray-900);
}

.login-box input:focus {
  outline: 2px solid var(--blue-500);
  outline-offset: 1px;
}

.login-error {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fef2f2;
  border-left: 4px solid #ef4444;
  color: #b91c1c;
  font-size: 0.85rem;
}

.login-box button {
  width: 100%;
  margin-top: 20px;
  padding: 12px;
  border: none;
  border-radius: 10px;
  background: var(--blue-600);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.15s ease;
}

.login-box button:hover:not(:disabled) { background: var(--blue-700); }
.login-box button:disabled { opacity: 0.6; cursor: not-allowed; }

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 340px));
  gap: 24px;
  width: 100%;
  max-width: 740px;
}

.card {
  background: #fff;
  border-radius: 20px;
  padding: 32px 28px;
  text-decoration: none;
  color: var(--gray-900);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.25);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 28px 52px rgba(15, 23, 42, 0.32);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
}

.card-asistencia::before { background: var(--blue-600); }
.card-gestion::before    { background: var(--orange); }

.card-icon {
  font-size: 2.2rem;
  line-height: 1;
}

.card h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.card p {
  margin: 0;
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.45;
  flex-grow: 1;
}

.card-cta {
  margin-top: 8px;
  font-weight: 600;
  font-size: 0.9rem;
}

.card-asistencia .card-cta { color: var(--blue-600); }
.card-gestion .card-cta    { color: var(--orange); }

.footer {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.85rem;
  text-align: center;
}

.footer p { margin: 0; }

@media (max-width: 640px) {
  .cards {
    grid-template-columns: 1fr;
    max-width: 340px;
  }
  .header {
    flex-direction: column;
    text-align: center;
  }
}