/* =====================================================
 * COURSES DASHBOARD - BLUEPRINT NOIR
 * Knowledge base landing page
 * Technical, clean, and premium
 * ===================================================== */

/* ===== LAYOUT & STRUCTURE ===== */
.courses-dashboard-blueprint {
  min-height: calc(100vh - 80px);
  padding: 4rem 0;
  position: relative;
  background-color: var(--bg-depth);
  
  /* Grid Background */
  background-image:
      linear-gradient(var(--grid-line) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
}

.dashboard-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 2;
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs-nav {
  margin-bottom: 2rem;
}

.breadcrumbs-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb-home {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb-home:hover {
  color: var(--accent-copper);
}

/* ===== DASHBOARD HEADER ===== */
.dashboard-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.dashboard-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

/* Technical Prefix for Title */
.dashboard-title::before {
  content: '// ';
  color: var(--accent-copper);
  font-family: var(--font-mono);
  font-size: 0.6em;
  vertical-align: middle;
}

.dashboard-subtitle {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.header-divider {
  height: 1px;
  width: 100px;
  margin: 0 auto;
  background: var(--accent-copper);
  position: relative;
}

.header-divider::after {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 5px; height: 5px;
  background: var(--bg-depth);
  border: 1px solid var(--accent-copper);
  transform: rotate(45deg);
}

/* ===== COURSES GRID ===== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 2rem;
}

/* ===== COURSE CARD ===== */
.course-card-blueprint {
  background: var(--bg-surface);
  border: 1px solid var(--border-tech);
  border-top: 2px solid var(--accent-copper); /* Signature top border */
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  height: 100%;
}

.course-card-blueprint:hover {
  transform: translateY(-5px);
  border-color: var(--accent-copper-dim);
  box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
}

/* Technical Corner Accents on Hover */
.course-card-blueprint::after {
  content: '';
  position: absolute;
  bottom: 0; right: 0;
  width: 20px; height: 20px;
  background: linear-gradient(135deg, transparent 50%, var(--accent-copper-glow) 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.course-card-blueprint:hover::after {
  opacity: 1;
}

/* Course Image Area */
.course-image-wrapper {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-tech);
}

.course-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  filter: grayscale(20%); /* Slight desaturation for noir feel */
}

.course-card-blueprint:hover .course-image {
  transform: scale(1.05);
  filter: grayscale(0%);
}

/* Placeholder if no image */
.course-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, var(--bg-card) 0%, var(--bg-depth) 100%);
  color: var(--text-secondary);
}

/* Course Content */
.course-card-content {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-header-section {
  margin-bottom: 1.5rem;
  flex: 1;
}

.course-title-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.course-card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0;
}

.enrollment-badge {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
  text-transform: uppercase;
  white-space: nowrap;
}

.course-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Progress Section */
.course-footer-section {
  margin-top: auto;
  border-top: 1px dashed var(--border-tech);
  padding-top: 1.5rem;
}

.progress-section {
  margin-bottom: 1.5rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.progress-label {
  color: var(--text-muted);
  text-transform: uppercase;
}

.progress-stats {
  color: var(--accent-copper);
  font-weight: 600;
}

/* Technical Progress Bar */
.progress-bar-track {
  width: 100%;
  height: 4px;
  background: var(--bg-depth);
  border: 1px solid var(--border-tech);
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent-copper);
  position: absolute;
  top: 0; left: 0;
  box-shadow: 0 0 10px var(--accent-copper-glow);
}

/* Button override for card */
.course-card-content .btn {
  width: 100%;
  justify-content: center;
}

/* ===== EMPTY STATE ===== */
.empty-state-blueprint {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-md);
}

.empty-icon-wrapper {
  color: var(--border-tech);
  margin-bottom: 1.5rem;
}

.empty-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.empty-description {
  color: var(--text-secondary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }
  
  .dashboard-title {
    font-size: 2rem;
  }
  
  .course-card-content {
    padding: 1.5rem;
  }
}