/* SeekhoWithRua LMS Styles */

:root {
  --primary: #7c3aed;
  --primary-light: #9E9BFF;
  --secondary: #00d4ff;
  --accent: #ff6b6b;
  --bg-dark: #0a0a1a;
  --bg-card: #1a1a3a;
  --bg-hover: #2a2a4a;
  --text-primary: #ffffff;
  --text-secondary: rgba(255,255,255,0.7);
  --text-muted: rgba(255,255,255,0.5);
  --success: #2ecc71;
  --warning: #f39c12;
  --danger: #e74c3c;
  --border: rgba(124, 58, 237, 0.2);
  --shadow: 0 8px 32px rgba(124, 58, 237, 0.2);
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 50%, #0d0d2a 100%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Animated Particles Background */
.particles {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 4px; height: 4px;
  background: rgba(124, 58, 237, 0.3);
  border-radius: 50%;
  animation: float 20s infinite linear;
}

@keyframes float {
  0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

/* Header - Fixed */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 8px 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 26, 0.98);
  backdrop-filter: blur(10px);
  gap: 10px;
}

/* Body padding for fixed header only */
body {
  padding-top: 55px;
}

.logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  flex-shrink: 0;
}

.logo span {
  color: var(--primary-light);
  -webkit-text-fill-color: var(--primary-light);
}

nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  flex: 1;
  justify-content: flex-start;
  padding: 5px 10px;
}

nav::-webkit-scrollbar {
  display: none;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
  padding: 6px 8px;
  border-radius: 6px;
}

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

nav a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 8px;
  right: 8px;
  width: calc(100% - 16px);
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: var(--transition);
  transform: scaleX(0);
}

nav a:hover::after,
nav a.active::after {
  transform: scaleX(1);
}

nav a:hover {
  background: rgba(124, 58, 237, 0.1);
  color: var(--primary);
}

nav a.active {
  background: rgba(124, 58, 237, 0.15);
  color: var(--primary);
}

.user-section {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.progress-summary {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(124, 58, 237, 0.2);
  padding: 4px 8px;
  border-radius: 20px;
  font-size: 11px;
  white-space: nowrap;
}

.progress-icon {
  font-size: 16px;
}

/* Hero Section */
.hero {
  position: relative;
  z-index: 5;
  padding: 80px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.hero-content h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 48px;
  font-weight: 900;
  margin-bottom: 20px;
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 500px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin: 30px 0;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: 'Orbitron', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-light);
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.hero-cta {
  display: flex;
  gap: 15px;
  margin-top: 30px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #9333ea);
  color: white;
  padding: 14px 32px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  padding: 14px 32px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--primary);
  background: rgba(124, 58, 237, 0.1);
}

/* Hero Visual */
.hero-visual {
  position: relative;
  height: 400px;
}

.floating-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
  animation: float-card 6s ease-in-out infinite;
}

.card-1 { top: 20px; left: 20px; animation-delay: 0s; }
.card-2 { top: 80px; right: 40px; animation-delay: 1.5s; }
.card-3 { bottom: 100px; left: 60px; animation-delay: 3s; }
.card-4 { bottom: 40px; right: 80px; animation-delay: 4.5s; }

@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.card-icon {
  font-size: 28px;
}

/* Search Section */
.search-section {
  position: relative;
  z-index: 5;
  padding: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.search-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 30px;
}

.search-input {
  width: 100%;
  padding: 15px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 16px;
  margin-bottom: 20px;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
}

.filter-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 14px;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Section Title */
.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 32px;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
  z-index: 5;
}

/* Courses Section */
.courses-section {
  position: relative;
  z-index: 5;
  padding: 60px 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 30px;
}

.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

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

.course-image {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  position: relative;
}

.course-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(255,255,255,0.2);
  padding: 5px 12px;
  border-radius: 15px;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 600;
}

.course-content {
  padding: 25px;
}

.course-category {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary-light);
  margin-bottom: 8px;
}

.course-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.course-description {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-clamp: 2;
  overflow: hidden;
}

.course-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

.course-progress {
  display: flex;
  align-items: center;
  gap: 10px;
}

.progress-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: conic-gradient(var(--success) calc(var(--progress) * 1%), var(--bg-hover) 0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
}

/* How It Works */
.how-it-works {
  position: relative;
  z-index: 5;
  padding: 80px 40px;
  background: rgba(124, 58, 237, 0.05);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.step-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.step h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.step p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Trainers Section */
.trainers-section {
  position: relative;
  z-index: 5;
  padding: 80px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.trainers-content h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 36px;
  margin-bottom: 20px;
}

.trainers-content p {
  color: var(--text-secondary);
  font-size: 18px;
  margin-bottom: 30px;
}

.trainer-benefits {
  list-style: none;
  margin-bottom: 30px;
}

.trainer-benefits li {
  padding: 10px 0;
  color: var(--text-secondary);
  font-size: 16px;
}

.dashboard-preview {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.preview-header {
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border);
}

.preview-stats {
  display: flex;
  gap: 30px;
}

.preview-stat {
  text-align: center;
}

.preview-value {
  display: block;
  font-family: 'Orbitron', sans-serif;
  font-size: 28px;
  color: var(--primary-light);
}

.preview-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Footer - At end of page */
footer {
  background: rgba(10, 10, 26, 0.95);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(10px);
  padding: 40px;
  color: var(--text-secondary);
}


.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto 20px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 15px;
  font-size: 14px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.footer-column h4 {
  font-size: 12px;
  margin-bottom: 10px;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 3px 0;
  font-size: 12px;
  transition: var(--transition);
}

.footer-column a:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 15px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
}

/* Course Player */
.course-player {
  position: relative;
  z-index: 5;
  padding: 40px;
  max-width: 1600px;
  margin: 0 auto;
}

.player-container {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 30px;
}

.video-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  background: #000;
}

.video-wrapper iframe,
.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-dark));
}

.placeholder-content {
  text-align: center;
}

.play-icon {
  font-size: 64px;
  margin-bottom: 20px;
}

.video-info {
  padding: 30px;
}

.video-info h1 {
  font-size: 24px;
  margin-bottom: 10px;
}

.video-meta {
  display: flex;
  gap: 20px;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 15px;
}

.video-info p {
  color: var(--text-secondary);
  margin-bottom: 25px;
}

.video-actions {
  display: flex;
  gap: 15px;
}

.btn-complete {
  background: var(--success);
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-complete.completed {
  background: var(--bg-hover);
  color: var(--success);
}

.btn-prev,
.btn-next {
  padding: 12px 24px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
}

.btn-prev:disabled,
.btn-next:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Course Sidebar */
.course-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-height: calc(100vh - 140px);
  position: sticky;
  top: 100px;
}

.course-header {
  padding: 25px;
  border-bottom: 1px solid var(--border);
}

.course-header h2 {
  font-size: 18px;
  margin-bottom: 15px;
}

.course-progress {
  display: flex;
  align-items: center;
  gap: 15px;
}

.progress-bar {
  flex: 1;
  height: 8px;
  background: var(--bg-hover);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s ease;
}

.video-list {
  overflow-y: auto;
  max-height: calc(100vh - 260px);
}

.video-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 25px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.video-item:hover {
  background: var(--bg-hover);
}

.video-item.active {
  background: rgba(124, 58, 237, 0.2);
  border-left: 3px solid var(--primary);
}

.video-item.completed .video-status {
  color: var(--success);
}

.video-number {
  width: 28px;
  height: 28px;
  background: var(--bg-hover);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.video-details {
  flex: 1;
}

.video-details h4 {
  font-size: 14px;
  margin-bottom: 4px;
}

.video-duration {
  font-size: 12px;
  color: var(--text-muted);
}

.video-status {
  font-size: 14px;
  color: var(--text-muted);
}

/* Learning Dashboard */
.learning-dashboard {
  position: relative;
  z-index: 5;
  padding: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.dashboard-header {
  text-align: center;
  margin-bottom: 50px;
}

.dashboard-header h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 36px;
  margin-bottom: 30px;
}

.overall-stats {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 25px 40px;
  text-align: center;
  min-width: 150px;
}

.stat-value {
  display: block;
  font-family: 'Orbitron', sans-serif;
  font-size: 32px;
  color: var(--primary-light);
  margin-bottom: 5px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dashboard-content {
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.learning-section h2 {
  font-size: 24px;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border);
}

.course-progress-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.progress-card {
  display: flex;
  align-items: center;
  gap: 25px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 25px;
  transition: var(--transition);
}

.progress-card:hover {
  border-color: var(--primary);
}

.progress-card-image {
  width: 100px;
  height: 100px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}

.progress-card-info {
  flex: 1;
}

.progress-card-info h3 {
  margin-bottom: 8px;
}

.last-watched {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 12px;
}

.mini-progress {
  height: 6px;
  background: var(--bg-hover);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.mini-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s ease;
}

.mini-progress-text {
  font-size: 12px;
  color: var(--text-secondary);
}

.btn-continue {
  background: var(--primary);
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.btn-continue:hover {
  background: #9333ea;
}

.completed-courses {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
}

.completed-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.completed-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.completed-info h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.completed-badge {
  background: var(--success);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.btn-certificate {
  background: var(--secondary);
  color: var(--bg-dark);
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 25px;
}

.certificate-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.certificate-preview {
  padding: 30px;
  text-align: center;
  background: linear-gradient(135deg, #1a1a3a, #2d2d5a);
  border-bottom: 1px solid var(--border);
}

.cert-header {
  font-family: 'Orbitron', sans-serif;
  color: var(--primary);
  margin-bottom: 15px;
}

.cert-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.cert-date {
  font-size: 12px;
  color: var(--text-muted);
}

.btn-download {
  width: 100%;
  padding: 15px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-download:hover {
  background: var(--bg-hover);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-icon {
  font-size: 48px;
  margin-bottom: 15px;
}

.empty-state p {
  font-size: 16px;
}

.empty-state a {
  color: var(--primary);
  text-decoration: none;
}

/* Trainer Dashboard */
.trainer-dashboard {
  position: relative;
  z-index: 5;
  padding: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.trainer-dashboard .dashboard-header {
  text-align: left;
  margin-bottom: 40px;
}

.trainer-dashboard .dashboard-header h1 {
  margin-bottom: 10px;
}

.trainer-dashboard .dashboard-header p {
  color: var(--text-secondary);
}

.trainer-dashboard .dashboard-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.stats-section .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.form-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 35px;
}

.form-section h2 {
  font-size: 22px;
  margin-bottom: 25px;
}

.course-form,
.video-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: flex;
  gap: 20px;
}

.form-row .form-group {
  flex: 1;
}

.form-group.flex-2 {
  flex: 2;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.alert-info {
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 8px;
  padding: 15px 20px;
  margin-bottom: 25px;
  font-size: 14px;
  color: var(--text-secondary);
}

.form-actions {
  display: flex;
  gap: 15px;
}

.video-list-preview {
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.video-list-preview h3 {
  font-size: 18px;
  margin-bottom: 20px;
}

.preview-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.preview-video-item {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
}

.video-index {
  width: 28px;
  height: 28px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
}

.preview-info {
  flex: 1;
}

.preview-info h4 {
  font-size: 14px;
  margin-bottom: 4px;
}

.preview-info span {
  font-size: 12px;
  color: var(--text-muted);
}

.btn-remove {
  width: 28px;
  height: 28px;
  background: var(--danger);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: var(--transition);
}

.btn-remove:hover {
  background: #c0392b;
}

.empty-preview {
  color: var(--text-muted);
  text-align: center;
  padding: 30px;
}

.trainer-courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
}

.trainer-course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.trainer-course-card .course-header {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.course-level {
  background: rgba(255,255,255,0.2);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 11px;
  text-transform: uppercase;
}

.trainer-course-card .course-info {
  padding: 20px;
}

.trainer-course-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.trainer-course-card p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.course-stats-bar {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.course-actions {
  display: flex;
  padding: 0 20px 20px;
  gap: 10px;
}

.btn-edit,
.btn-view {
  flex: 1;
  padding: 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-edit {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-view {
  background: var(--primary);
  border: none;
  color: white;
}

.empty-courses {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px;
  color: var(--text-secondary);
}

/* Guide Section */
.guide-section {
  background: rgba(124, 58, 237, 0.05);
  border-radius: var(--radius);
  padding: 35px;
}

.guide-section h2 {
  font-size: 20px;
  margin-bottom: 25px;
}

.guide-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.guide-step {
  display: flex;
  gap: 15px;
}

.guide-step .step-number {
  position: static;
  transform: none;
  width: 32px;
  height: 32px;
  font-size: 14px;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 15px;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Notification */
.notification {
  position: fixed;
  top: 100px;
  right: 30px;
  background: var(--bg-card);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  padding: 20px 25px;
  z-index: 1000;
  animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s;
  box-shadow: var(--shadow);
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-visual {
    display: none;
  }

  .player-container {
    grid-template-columns: 1fr;
  }

  .course-sidebar {
    max-height: none;
    position: static;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .guide-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .trainers-section {
    grid-template-columns: 1fr;
  }

  .stats-section .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  header {
    padding: 10px 15px;
    gap: 10px;
  }

  .logo {
    font-size: 16px;
  }

  nav {
    gap: 8px;
    justify-content: flex-start;
  }

  nav a {
    font-size: 11px;
    padding: 6px 8px;
  }

  body {
    padding-top: 50px;
  }

  footer {
    padding: 12px 15px 8px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 10px;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .guide-steps {
    grid-template-columns: 1fr;
  }

  .stats-section .stats-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .form-row {
    flex-direction: column;
  }

  .video-actions {
    flex-wrap: wrap;
  }

  .completed-courses {
    grid-template-columns: 1fr;
  }

  .overall-stats {
    flex-direction: column;
    align-items: center;
  }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
  background: #9333ea;
}

/* Student Activity Section Styles */
.student-activity-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 35px;
  margin-top: 20px;
}

.student-activity-section h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.student-activity-section .section-desc {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 25px;
}

.student-selector {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 30px;
  padding: 20px;
  background: rgba(124, 58, 237, 0.05);
  border-radius: 8px;
}

.student-selector label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 600;
}

.student-selector select {
  flex: 1;
  max-width: 300px;
  padding: 10px 15px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
}

.btn-refresh {
  padding: 10px 20px;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  color: white;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-refresh:hover {
  background: #9333ea;
}

.activity-container {
  margin-bottom: 30px;
}

.activity-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.activity-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 25px;
  transition: var(--transition);
}

.activity-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}

.activity-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border);
}

.activity-icon {
  font-size: 24px;
}

.activity-header h3 {
  font-size: 16px;
  color: var(--text-primary);
}

.activity-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-bottom: 20px;
}

.activity-stats .stat {
  background: rgba(124, 58, 237, 0.1);
  padding: 15px;
  border-radius: 8px;
  text-align: center;
}

.activity-stats .stat-number {
  display: block;
  font-family: 'Orbitron', sans-serif;
  font-size: 20px;
  color: var(--primary-light);
  margin-bottom: 5px;
}

.activity-stats .stat-label {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.activity-list {
  max-height: 200px;
  overflow-y: auto;
}

.activity-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 13px;
}

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

.activity-item-name {
  color: var(--text-secondary);
}

.activity-item-value {
  color: var(--primary-light);
  font-weight: 600;
}

/* Rank Card Styles */
.rank-display {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
  padding: 20px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(0, 212, 255, 0.1));
  border-radius: 12px;
}

.rank-number {
  font-family: 'Orbitron', sans-serif;
  font-size: 36px;
  font-weight: 900;
  color: var(--primary-light);
}

.rank-info .rank-label {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 4px;
}

.rank-info .rank-desc {
  font-size: 12px;
  color: var(--text-muted);
}

.rank-breakdown {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rank-item {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.rank-item span:first-child {
  color: var(--text-secondary);
}

.rank-item span:last-child {
  color: var(--success);
  font-weight: 600;
}

/* Gaming Card Specific */
.gaming-card:hover {
  border-color: #7c3aed;
}

/* Animation Card Specific */
.animation-card:hover {
  border-color: #00d4ff;
}

/* Rank Card Specific */
.rank-card:hover {
  border-color: #f59e0b;
}

/* Empty State */
.activity-container .empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

.activity-container .empty-icon {
  font-size: 48px;
  margin-bottom: 15px;
}

/* Responsive for Activity Section */
@media (max-width: 1024px) {
  .activity-summary {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .activity-summary {
    grid-template-columns: 1fr;
  }
  
  .student-selector {
    flex-direction: column;
    align-items: stretch;
  }
  
  .student-selector select {
    max-width: none;
  }
  
  .activity-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Floating AI Professor Widget */
.ai-professor-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.ai-professor-float:hover {
  transform: scale(1.05);
}

.ai-professor-orbit {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(124, 58, 237, 0.4);
  animation: aiOrbit 3s ease-in-out infinite;
  position: relative;
}

.ai-professor-orbit::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: #00d4ff;
  border-right-color: #00d4ff;
  animation: aiSpin 2s linear infinite;
}

.ai-professor-orbit::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px solid rgba(124, 58, 237, 0.3);
  animation: aiPulse 2s ease-in-out infinite;
}

@keyframes aiOrbit {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes aiSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes aiPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.5; }
}

.ai-professor-icon {
  font-size: 28px;
  z-index: 1;
}

.ai-professor-text {
  background: rgba(124, 58, 237, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px 20px;
  border-radius: 30px;
  color: white;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-professor-text span {
  display: block;
  font-size: 10px;
  font-weight: 400;
  opacity: 0.8;
  margin-top: 2px;
}

@media (max-width: 768px) {
  .ai-professor-float {
    bottom: 20px;
    right: 20px;
  }
  
  .ai-professor-orbit {
    width: 50px;
    height: 50px;
  }
  
  .ai-professor-icon {
    font-size: 24px;
  }
  
  .ai-professor-text {
    display: none;
  }
}