:root {
  --kidz-teal: #007788;
  --kidz-teal-dark: #005a66;
  --kidz-teal-light: #e6f7f7;
  --kidz-yellow: #f0c24b;
  --kidz-green: #b5d56a;
  --kidz-danger: #ea7066;
  --kidz-info: #84bed6;
  --kidz-purple: #a597e7;
  --kidz-pink: #ea77ad;
  --kidz-dark: #2f3c43;
  --kidz-bg: #f4f6fa;
  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  --border-radius: 18px;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--kidz-bg);
  color: var(--kidz-dark);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6, .font-title {
  font-family: 'Dosis', 'Open Sans', sans-serif;
  font-weight: 700;
}

/* Barra Superior Multicolor KIDZ */
.color-bars-wrapper {
  height: 6px;
  display: flex;
  width: 100%;
}
.color-bar { flex: 1; height: 100%; }
.bg-yellow { background-color: var(--kidz-yellow); }
.bg-green  { background-color: var(--kidz-green); }
.bg-danger { background-color: var(--kidz-danger); }
.bg-info   { background-color: var(--kidz-info); }
.bg-purple { background-color: var(--kidz-purple); }
.bg-pink   { background-color: var(--kidz-pink); }

/* Header de la App */
.app-header {
  background: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: 12px 18px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.header-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.brand-text h1 {
  font-size: 1.15rem;
  margin: 0;
  color: var(--kidz-teal);
  line-height: 1.2;
}

.brand-text span {
  font-size: 0.75rem;
  color: #64748b;
  display: block;
}

/* Banner de Instalación PWA */
.install-banner {
  background: linear-gradient(135deg, #007788 0%, #005a66 100%);
  color: white;
  padding: 12px 16px;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
  z-index: 90;
  box-shadow: 0 4px 12px rgba(0, 119, 136, 0.25);
}

.install-banner-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.install-banner-icon {
  font-size: 24px;
  background: rgba(255, 255, 255, 0.2);
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.install-banner-text strong {
  display: block;
  font-size: 0.9rem;
}

.install-banner-text p {
  margin: 0;
  font-size: 0.78rem;
  opacity: 0.9;
}

.btn-install {
  background: var(--kidz-yellow);
  color: var(--kidz-dark);
  font-weight: 700;
  border: none;
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 0.85rem;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.btn-install:active {
  transform: scale(0.96);
}

.btn-close-banner {
  background: none;
  border: none;
  color: white;
  font-size: 1.2rem;
  padding: 4px 8px;
  cursor: pointer;
  opacity: 0.8;
}

/* Contenedor Principal */
.main-content {
  flex: 1;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 16px;
}

/* Tarjetas */
.app-card {
  background: #ffffff;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  border: 1px solid #e2e8f0;
  padding: 24px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.card-header-custom {
  border-bottom: 2px solid #f1f5f9;
  padding-bottom: 14px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header-custom h2 {
  font-size: 1.35rem;
  color: var(--kidz-teal);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Botones */
.btn-primary-jakana {
  background: linear-gradient(135deg, var(--kidz-teal) 0%, var(--kidz-teal-dark) 100%);
  color: #ffffff !important;
  border: none;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 50px;
  box-shadow: 0 4px 14px rgba(0, 119, 136, 0.35);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary-jakana:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.btn-primary-jakana:active {
  transform: translateY(0);
}

.btn-outline-jakana {
  background: transparent;
  color: var(--kidz-teal);
  border: 2px solid var(--kidz-teal);
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 50px;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.btn-outline-jakana:hover {
  background: var(--kidz-teal-light);
}

/* Badges y Pastillas */
.badge-status {
  padding: 6px 14px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.badge-pendiente {
  background-color: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.badge-matriculado {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.badge-rechazado {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* Tarjeta de Estudiante */
.student-badge-card {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 16px;
  transition: border-color 0.2s ease;
}

.student-badge-card:hover {
  border-color: var(--kidz-teal);
}

.student-info-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.student-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--kidz-teal) 0%, var(--kidz-info) 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.student-meta {
  flex: 1;
}

.student-meta h3 {
  font-size: 1.15rem;
  margin: 0 0 4px 0;
  color: #1e293b;
}

.student-meta p {
  margin: 0;
  font-size: 0.85rem;
  color: #64748b;
}

.promo-tag {
  background: var(--kidz-teal-light);
  color: var(--kidz-teal);
  border-radius: 8px;
  padding: 4px 10px;
  font-weight: 700;
  font-size: 0.85rem;
  display: inline-block;
  margin-top: 6px;
}

/* Formularios Mobile-Friendly */
.form-group-custom {
  margin-bottom: 18px;
}

.form-group-custom label {
  display: block;
  font-weight: 600;
  font-size: 0.88rem;
  color: #334155;
  margin-bottom: 6px;
}

.form-control-custom {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #cbd5e1;
  border-radius: 12px;
  font-size: 0.95rem;
  color: #1e293b;
  background-color: #ffffff;
  transition: all 0.2s ease;
}

.form-control-custom:focus {
  border-color: var(--kidz-teal);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 119, 136, 0.15);
}

.form-control-custom:disabled,
.form-control-custom[readonly] {
  background-color: #f1f5f9;
  cursor: not-allowed;
  color: #64748b;
}

/* Secciones del Formulario de Matrícula */
.section-banner {
  background: #f8fafc;
  border-left: 4px solid var(--kidz-teal);
  padding: 10px 14px;
  border-radius: 0 10px 10px 0;
  margin: 22px 0 16px 0;
  font-weight: 700;
  color: var(--kidz-teal);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Footer */
.app-footer {
  background: #ffffff;
  border-top: 1px solid #e2e8f0;
  padding: 20px 16px;
  text-align: center;
  font-size: 0.8rem;
  color: #64748b;
  margin-top: auto;
}

/* Responsive tweaks */
@media (max-width: 576px) {
  .app-card {
    padding: 18px 14px;
  }
  .header-content {
    flex-direction: row;
  }
  .brand-text h1 {
    font-size: 1.05rem;
  }
  .student-info-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}