:root {
  --pla-primary: #1e3a5f;
  --pla-primary-light: #2c5282;
  --pla-accent: #f0a500;
  --pla-bg: #f4f6f9;
  --pla-success: #2f855a;
}

body {
  background-color: var(--pla-bg);
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #1a202c;
}

.pla-navbar {
  background: linear-gradient(90deg, var(--pla-primary) 0%, var(--pla-primary-light) 100%);
}

.pla-navbar .nav-link {
  font-weight: 500;
}

.pla-footer {
  border-top: 1px solid #e2e8f0;
  background: #fff;
}

/* Login / páginas públicas */
.pla-auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--pla-primary) 0%, var(--pla-primary-light) 55%, var(--pla-accent) 150%);
}

.pla-auth-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 20px 50px rgba(0,0,0,.25);
  padding: 2.5rem;
}

.pla-auth-card .pla-logo {
  font-size: 2.2rem;
  color: var(--pla-primary);
}

/* Cards de curso */
.pla-course-card {
  border: none;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
  transition: transform .15s ease, box-shadow .15s ease;
  height: 100%;
}

.pla-course-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(0,0,0,.12);
}

.pla-course-cover {
  height: 150px;
  background: linear-gradient(135deg, var(--pla-primary), var(--pla-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 2.5rem;
  background-size: cover;
  background-position: center;
}

.pla-badge-category {
  background: var(--pla-accent);
  color: #1a202c;
  font-weight: 600;
}

.progress { background-color: #e2e8f0; }
.progress-bar { background-color: var(--pla-success); }

.pla-stat-card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
}

.pla-stat-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  background: var(--pla-primary);
}

.pla-module-item.completed {
  background-color: #f0fff4;
}

.pla-sidebar-card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
}

a { color: var(--pla-primary-light); }

.btn-primary {
  background-color: var(--pla-primary);
  border-color: var(--pla-primary);
}
.btn-primary:hover {
  background-color: var(--pla-primary-light);
  border-color: var(--pla-primary-light);
}
.btn-accent {
  background-color: var(--pla-accent);
  border-color: var(--pla-accent);
  color: #1a202c;
  font-weight: 600;
}
.btn-accent:hover {
  background-color: #d99000;
  color: #1a202c;
}