/* assets/css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --color-darkest: #006A71;
  --color-dark: #006A71;
  --color-medium: #48A6A7;
  --color-light: #9ACBD0;
  --color-offwhite: #F2EFE7;
  --color-white: #FFFFFF;
  --color-danger: #e74c3c;
  --color-success: #2ecc71;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 24px;
  
  --shadow-sm: 0 2px 8px rgba(9, 20, 19, 0.08);
  --shadow-md: 0 8px 24px rgba(9, 20, 19, 0.12);
  
  --transition: all 0.3s ease;
}

/* Dark Mode Overrides */
:root.dark-mode {
  --color-darkest: #F2EFE7;
  --color-dark: #9ACBD0;
  --color-medium: #48A6A7;
  --color-light: #006A71;
  --color-offwhite: #0a1114;
  --color-white: #121e22;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.6);
}

:root.dark-mode .course-img {
    background-color: #1a292d !important;
}

:root.dark-mode .form-control {
    background-color: var(--color-white);
    color: var(--color-darkest);
    border-color: var(--color-light);
}

:root.dark-mode table th {
    background-color: var(--color-light) !important;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--color-offwhite);
  color: var(--color-darkest);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: var(--color-medium);
  transition: var(--transition);
}

a:hover {
  color: var(--color-dark);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--color-darkest);
  margin-bottom: 1rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  background-color: var(--color-white);
  color: var(--color-darkest);
  padding: 1rem 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-dark);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--color-darkest);
  font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-medium);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--color-medium);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-medium);
  color: var(--color-medium);
}

.btn-outline:hover {
  background-color: var(--color-medium);
  color: var(--color-white);
}

.btn-danger {
  background-color: var(--color-danger);
  color: var(--color-white);
}

.btn-success {
  background-color: var(--color-success);
  color: var(--color-white);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-dark);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-medium);
  box-shadow: 0 0 0 3px rgba(64, 138, 113, 0.2);
}

/* Cards */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 2rem;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

/* Course Grid */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.course-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.course-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background-color: var(--color-light);
}

.course-content {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.course-title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--color-darkest);
}

.course-desc {
  color: #666;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-success {
  background-color: rgba(46, 204, 113, 0.2);
  color: var(--color-success);
}

.badge-warning {
  background-color: rgba(241, 196, 15, 0.2);
  color: #d35400;
}

/* Utilities */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Dashboard Layout */
.dashboard-wrapper {
  display: flex;
  min-height: calc(100vh - 70px);
}

.sidebar {
  width: 250px;
  background-color: var(--color-darkest);
  color: var(--color-white);
  padding: 2rem 1rem;
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav li {
  margin-bottom: 0.5rem;
}

.sidebar-nav a {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-light);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.sidebar-nav a:hover, .sidebar-nav a.active {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

.main-content {
  flex-grow: 1;
  padding: 2rem;
  background-color: var(--color-offwhite);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

th, td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

th {
  background-color: var(--color-offwhite);
  font-weight: 600;
  color: var(--color-dark);
}

tr:last-child td {
  border-bottom: none;
}

/* Alert Messages */
.alert {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
}

.alert-error {
  background-color: rgba(231, 76, 60, 0.1);
  color: var(--color-danger);
  border-left: 4px solid var(--color-danger);
}

.alert-success {
  background-color: rgba(46, 204, 113, 0.1);
  color: var(--color-success);
  border-left: 4px solid var(--color-success);
}

/* Progress bar */
.progress {
  height: 8px;
  background-color: #eee;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 1rem;
}

.progress-bar {
  height: 100%;
  background-color: var(--color-medium);
}