/* CSS per le pagine delle attività - Course Site Manager */

:root {
  --primary: #2563eb;
  --primary-light: #60a5fa;
  --primary-dark: #1d4ed8;
  --secondary: #6c757d;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --text: #1f2937;
  --text-light: #4b5563;
  --bg: #ffffff;
  --border: #d1d5db;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.15);
  --radius: 0.75rem;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', Segoe UI, Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Navbar */
.navbar {
  background: white;
  box-shadow: var(--shadow-sm);
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand img {
  height: 24px;
  margin-top: 10px;
}

.navbar-nav {
  display: flex;
  gap: 1rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  font-size: 1rem;
  padding: 0.5rem 0;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary);
}

.navbar-toggler {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

.navbar-actions {
  display: flex;
  gap: 0.75rem;
}

.btn-navbar {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-navbar:hover {
  background: var(--primary-light);
  color: white;
  border-color: var(--primary-light);
}

@media (max-width: 768px) {
  .navbar-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: 1rem;
    box-shadow: var(--shadow-md);
  }
  .navbar-nav.active {
    display: flex;
  }
  .navbar-toggler {
    display: block;
  }
  .navbar-actions {
    display: none;
  }
  .navbar-actions.active {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    padding: 1rem;
    box-shadow: var(--shadow-md);
  }
}

/* Intestazione */
.page-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text);
  text-align: center;
}

.page-duration {
  font-size: 1.1rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 2rem;
}

/* Contenuto - simula Bootstrap col-md-8 col-sm-12 */
.content-container {
  width: 100%;
  margin: 0 auto;
  padding: 0 1rem;
}

.content-container > * {
  margin-bottom: 1rem;
  line-height: 1.7;
}

.content-container > *:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .content-container {
    width: 66.666667%; /* 8/12 colonne - equivalente a col-md-8 */
  }
}

/* Liste allineate all'interno del container */
.content-container ul,
.content-container ol {
  padding-left: 1.5em;
  margin-left: 0;
}

/* Immagini responsive */
.content-container img {
  max-width: 100%;
  height: auto;
}

/* Pulsante di ritorno */
.return-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.return-link:hover {
  background: var(--primary-light);
  color: white;
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}

/* Utility classes */
.text-center {
  text-align: center;
}
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }

img {
    max-width: 100%;
}