html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

/* Login page styles */
.login-page {
  min-height: calc(100vh - 120px);
  background: linear-gradient(180deg, #f7fbff 0%, #eef6ff 100%);
  padding-top: 40px;
  padding-bottom: 40px;
}

.login-page .card {
  border: none;
  border-radius: 12px;
}

.login-page .card-body {
  padding: 2rem;
}

.login-page .btn-primary {
  background-color: #007bff;
  border-color: #007bff;
}

/* Global theme variables */
:root{
  --primary: #0d6efd;
  --primary-dark: #0b5ed7;
  --muted: #6c757d;
  --bg: #f4f8ff;
  --card-radius: 12px;
}

body{
  background: linear-gradient(180deg, #fbfdff 0%, #f3f7ff 100%);
  color: #1b2330;
}

/* Navbar tweaks */
.navbar-brand{font-weight:600}
.logo-dot{width:10px;height:10px;border-radius:50%;background:var(--primary);display:inline-block}
.navbar-dark .nav-link{color:rgba(255,255,255,0.9)}

/* Footer */
footer.border-top{border-top: none; padding:18px 0;}

/* Buttons */
.btn-primary{background:var(--primary);border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark)}

/* Cards and spacing */
.card{border-radius:var(--card-radius)}


/* Library styles */
.module-card {
  border-radius: 12px;
  transition: transform .12s ease, box-shadow .12s ease;
}
.module-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(16, 56, 110, 0.12);
}
.module-card .card-title a {
  color: #0d6efd;
}
.module-card .progress {
  background: #e9f2ff;
}

/* Lesson card styles */
.lesson-card {
  border-radius: 10px;
  transition: transform .12s ease, box-shadow .12s ease;
}
.lesson-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(16, 56, 110, 0.08);
}
.lesson-card .card-title a {
  color: #0d6efd;
}

/* Lesson page item styles */
.lesson-item {
  border-radius: 8px;
  transition: transform .08s ease, box-shadow .08s ease;
}
.lesson-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(16, 56, 110, 0.06);
}
.lesson-item .fw-semibold {
  font-weight: 600;
}

/* Item page styles */
.content-card {
  border-radius: 12px;
  overflow: hidden;
}
.content-pre {
  background: #f8fafc;
  padding: 1rem;
  border-radius: 8px;
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, 'Roboto Mono', 'Courier New', monospace;
}
.item-content audio {
  outline: none;
}

/* Media sizing: keep images and videos within reasonable bounds */
.media-container {
  display: block;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.media-fit {
  width: 100%;
  height: auto;
  max-height: 560px; /* prevents very tall media */
  object-fit: contain;
  border-radius: 8px;
  background: #000; /* helpful for video player background */
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}