@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700;900&family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #7A0C0C;
  --primary-rgb: 122, 12, 12;
  --dark-red: #4A0000;
  --gold: #C49A3A;
  --gold-rgb: 196, 154, 58;
  --white: #FFFFFF;
  --light: #F8F8F8;

  --bg-color: #F8F8F8;
  --card-bg: #FFFFFF;
  --text-color: #212529;
  --text-muted: #6c757d;
  --border-color: #dee2e6;

  --font-heading: 'Cinzel', serif;
  --font-body: 'Poppins', sans-serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body.dark-theme {
  --bg-color: #0c0b0b;
  --card-bg: #151313;
  --text-color: #e9ecef;
  --text-muted: #adb5bd;
  --border-color: #2a2626;
  --light: #1c1919;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
}

/* Centralized Dark Mode Color & Component Fixes */
body.dark-theme .text-color {
  color: var(--text-color) !important;
}

body.dark-theme .text-muted,
body.dark-theme .text-secondary,
body.dark-theme .text-body-secondary {
  color: var(--text-muted) !important;
}

body.dark-theme .text-dark,
body.dark-theme .text-dark-emphasis,
body.dark-theme .text-body {
  color: var(--text-color) !important;
}

body.dark-theme .bg-white {
  background-color: var(--card-bg) !important;
}

body.dark-theme .bg-light,
body.dark-theme .bg-light-subtle {
  background-color: var(--light) !important;
  color: var(--text-color) !important;
}

body.dark-theme .border,
body.dark-theme .border-bottom,
body.dark-theme .border-top,
body.dark-theme .border-start,
body.dark-theme .border-end,
body.dark-theme [class*="border-"] {
  border-color: var(--border-color) !important;
}

body.dark-theme .navbar-custom .nav-link {
  color: var(--text-muted);
}

body.dark-theme .navbar-custom .nav-link.active,
body.dark-theme .navbar-custom .nav-link:hover {
  color: var(--text-color) !important;
}

body.dark-theme .dropdown-menu {
  background-color: var(--card-bg);
  border-color: var(--border-color);
}

body.dark-theme .dropdown-item {
  color: var(--text-color);
}

body.dark-theme .dropdown-item:hover {
  background-color: var(--light);
  color: var(--text-color);
}

body.dark-theme .list-group-item {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .accordion-item {
  background-color: var(--card-bg) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .accordion-button {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
}

body.dark-theme .accordion-button:not(.collapsed) {
  background-color: var(--light) !important;
  color: var(--gold) !important;
}

body.dark-theme .accordion-button::after {
  filter: invert(1);
}

body.dark-theme .table {
  --bs-table-color: var(--text-color);
  --bs-table-bg: var(--card-bg);
  --bs-table-border-color: var(--border-color);
  color: var(--text-color);
}

body.dark-theme .table-custom th {
  background-color: var(--light) !important;
  color: var(--text-color) !important;
  border-bottom-color: var(--border-color) !important;
}

body.dark-theme .form-control,
body.dark-theme .form-select {
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .form-control:focus,
body.dark-theme .form-select:focus {
  border-color: var(--gold) !important;
  box-shadow: 0 0 0 0.25rem rgba(196, 154, 58, 0.25) !important;
}

body.dark-theme .form-control::placeholder {
  color: var(--text-muted) !important;
}

body.dark-theme .input-group-text {
  background-color: var(--light) !important;
  color: var(--text-muted) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .modal-content {
  background-color: var(--card-bg) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .modal-header,
body.dark-theme .modal-footer {
  border-color: var(--border-color) !important;
}

body.dark-theme .comment-box {
  background-color: var(--card-bg) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .lesson-sidebar {
  background-color: var(--card-bg) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .lesson-item:hover,
body.dark-theme .lesson-item.active {
  background-color: var(--light) !important;
}

body.dark-theme .lesson-item.active {
  border-left-color: var(--primary) !important;
}

body.dark-theme .category-box {
  background-color: var(--card-bg) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .card {
  background-color: var(--card-bg) !important;
  border-color: var(--border-color) !important;
}

body.dark-theme .modal-header .btn-close {
  filter: invert(1);
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6,
.font-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-color);
}

.text-gold {
  color: var(--gold) !important;
}

.text-primary-custom {
  color: var(--primary) !important;
}

.bg-primary-custom {
  background-color: var(--primary) !important;
}

.bg-gold-custom {
  background-color: var(--gold) !important;
}

/* Custom Buttons */
.btn-primary-custom {
  background-color: var(--primary);
  color: var(--white);
  border: 1px solid var(--primary);
  font-weight: 500;
  transition: var(--transition);
}

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

.btn-gold-custom {
  background-color: var(--gold);
  color: var(--white);
  border: 1px solid var(--gold);
  font-weight: 500;
  transition: var(--transition);
}

.btn-gold-custom:hover {
  background-color: #b0872e;
  color: var(--white);
  border-color: #b0872e;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline-primary-custom {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  font-weight: 600;
  transition: var(--transition);
}

.btn-outline-primary-custom:hover {
  background-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

/* Glassmorphism Navbar */
.navbar-custom {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  z-index: 1050;
  transition: background-color 0.3s, border-color 0.3s;
}

body.dark-theme .navbar-custom {
  background-color: rgba(15, 13, 13, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Course Cards */
.course-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(196, 154, 58, 0.3);
}

.course-card .card-img-wrapper {
  position: relative;
  overflow: hidden;
  padding-top: 56.25%;
  /* 16:9 Aspect Ratio */
}

.course-card .card-img-wrapper img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.course-card:hover .card-img-wrapper img {
  transform: scale(1.08);
}

.course-card .badge-category {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background-color: rgba(122, 12, 12, 0.9);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: 20px;
}

.course-card .card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, var(--dark-red) 0%, var(--primary) 100%);
  color: var(--white);
  padding: 100px 0 80px 0;
  overflow: hidden;
}

.hero-section::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: radial-gradient(circle, rgba(196, 154, 58, 0.15) 0%, transparent 60%);
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-section h1 {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 1px;
}

/* Custom Table/Forms for Dark Mode */
.table-custom {
  color: var(--text-color);
  background-color: var(--card-bg);
}

.table-custom th {
  background-color: var(--light);
  color: var(--text-color);
  border-bottom: 2px solid var(--border-color);
}

.table-custom td {
  border-bottom: 1px solid var(--border-color);
}

.form-control-custom {
  background-color: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.form-control-custom:focus {
  background-color: var(--card-bg);
  color: var(--text-color);
  border-color: var(--primary);
  box-shadow: 0 0 0 0.25rem rgba(122, 12, 12, 0.25);
}

/* Dark Mode Form / Modal UI overrides */
body.dark-theme .modal-content {
  background-color: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

body.dark-theme .modal-header,
body.dark-theme .modal-footer {
  border-color: var(--border-color);
}

body.dark-theme .list-group-item {
  background-color: var(--card-bg);
  color: var(--text-color);
  border-color: var(--border-color);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--light);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dark-red);
}

/* Category Grid on Landing Page */
.category-box {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 30px 20px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
  cursor: pointer;
}

.category-box:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gold);
}

.category-box .icon-box {
  width: 70px;
  height: 70px;
  line-height: 70px;
  background-color: rgba(122, 12, 12, 0.1);
  color: var(--primary);
  border-radius: 50%;
  margin: 0 auto 20px auto;
  font-size: 28px;
  transition: var(--transition);
}

.category-box:hover .icon-box {
  background-color: var(--primary);
  color: var(--white);
  transform: rotateY(180deg);
}

/* Sidebar styling for dashboard */
.sidebar-layout {
  min-height: calc(100vh - 72px);
  border-right: 1px solid var(--border-color);
  background-color: var(--card-bg);
}

.sidebar-link {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  border-left: 4px solid transparent;
  transition: var(--transition);
}

.sidebar-link i {
  width: 24px;
  font-size: 1.1rem;
  margin-right: 10px;
}

.sidebar-link:hover,
.sidebar-link.active {
  background-color: rgba(122, 12, 12, 0.05);
  color: var(--primary);
  border-left-color: var(--primary);
}

body.dark-theme .sidebar-link:hover,
body.dark-theme .sidebar-link.active {
  background-color: rgba(196, 154, 58, 0.05);
  color: var(--gold);
  border-left-color: var(--gold);
}

/* Footer Section */
.footer-section {
  background-color: #211c1c;
  color: #dee2e6;
  padding: 60px 0 30px 0;
  font-size: 0.9rem;
}

.footer-section h5 {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer-section h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--gold);
}

.footer-section a {
  color: #adb5bd;
  text-decoration: none;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--gold);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  margin-top: 40px;
}

/* Lesson Learning Interface styling */
.lesson-video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.lesson-video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.lesson-sidebar {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  height: 600px;
  display: flex;
  flex-direction: column;
}

.lesson-sidebar-header {
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-color);
}

.lesson-list {
  overflow-y: auto;
  flex-grow: 1;
}

.lesson-item {
  display: flex;
  align-items: center;
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text-color);
}

.lesson-item:hover,
.lesson-item.active {
  background-color: var(--light);
}

.lesson-item.active {
  border-left: 4px solid var(--primary);
}

.lesson-item .status-icon {
  margin-right: 12px;
  font-size: 1.1rem;
}

/* Comment Box styling */
.comment-box {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.comment-list .comment-item {
  border-bottom: 1px solid var(--border-color);
  padding: 15px 0;
}

.comment-list .comment-item:last-child {
  border-bottom: none;
}

.comment-list .reply-list {
  padding-left: 50px;
  margin-top: 15px;
}

.comment-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

/* Auth Cards */
.auth-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--shadow-hover);
  padding: 40px;
  width: 100%;
  max-width: 450px;
}