/* =============================================
   MATH EASE — Private Sessions Management System
   Teacher: Mr. Andrew Sherif
   Brand Palette: #3e5753 · #e7f1e8 · #d1a254 · #1f3049
   Fonts: Manrope (headings) + Inter (body)
   Icons: Material Symbols Outlined
   ============================================= */

/* === 1. DESIGN TOKENS === */
:root {
  --primary:            #3e5753;
  --primary-hover:      #2f4542;
  --primary-container:  #4d6b66;
  --primary-fixed:      #e7f1e8;
  --primary-fixed-dim:  #c8ddc9;
  --on-primary:         #ffffff;
  --on-primary-fixed:   #1a2e2b;
  --on-primary-fixed-v: #2d4540;
  --inverse-primary:    #c8ddc9;

  --secondary:          #1f3049;
  --secondary-container:#d6e0ee;
  --on-secondary:       #ffffff;

  --accent:             #d1a254;
  --accent-hover:       #b8883d;
  --accent-container:   #fae9ca;
  --on-accent:          #ffffff;

  --surface:            #f9f9f8;
  --surface-low:        #f3f4f2;
  --surface-mid:        #edeeec;
  --surface-high:       #e8e8e7;
  --surface-highest:    #e2e3e1;
  --surface-bright:     #ffffff;
  --surface-container:  #f0f4f0;

  --on-surface:         #1a1c1b;
  --on-surface-v:       #404847;

  --outline:            #707977;
  --outline-v:          #c0c8c6;

  --error:              #ba1a1a;
  --error-container:    #ffdad6;
  --success:            #1a6e3a;
  --success-container:  #d6f0e0;
  --warning:            #7a4900;
  --warning-container:  #ffddb6;
  --info:               #1a4fa8;
  --info-container:     #d3e4ff;

  --sidebar-bg:         #1f3049;
  --sidebar-width:      260px;
  --sidebar-text:       rgba(231,241,232,0.7);
  --sidebar-text-hover: #e7f1e8;
  --sidebar-active-bg:  rgba(231,241,232,0.12);
  --sidebar-hover-bg:   rgba(231,241,232,0.06);

  --topbar-height:      64px;

  --shadow-sm:   0 2px 8px rgba(31,48,73,0.06);
  --shadow:      0 12px 32px -8px rgba(62,87,83,0.10);
  --shadow-lg:   0 20px 48px -8px rgba(62,87,83,0.15);
  --shadow-p:    0 8px 24px -4px rgba(62,87,83,0.30);

  --radius-xs:   4px;
  --radius-sm:   8px;
  --radius:      12px;
  --radius-lg:   20px;
  --radius-xl:   28px;
  --radius-full: 9999px;

  --transition:      all 0.25s cubic-bezier(0.4,0,0.2,1);
  --transition-fast: all 0.15s ease;
  --transition-slow: all 0.4s cubic-bezier(0.4,0,0.2,1);
}

/* === 2. BASE === */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
h1,h2,h3,h4,h5,h6,.font-headline {
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}
a { transition: color 0.15s ease; }
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  line-height: 1;
  user-select: none;
}
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--surface-mid); }
::-webkit-scrollbar-thumb { background: var(--outline-v); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--outline); }

/* === 3. BOOTSTRAP OVERRIDES === */
.btn {
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  padding: 0.5rem 1.375rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  border: none;
  line-height: 1.5;
}
.btn .material-symbols-outlined { font-size: 1rem; }
.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--primary-hover);
  color: var(--on-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-p);
}
.btn-fixed {
  background: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
}
.btn-fixed:hover {
  background: var(--primary-fixed-dim);
  color: var(--on-primary-fixed-v);
  transform: translateY(-1px);
}
.btn-outline-primary {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--on-primary);
}
.btn-light {
  background: var(--surface-low);
  color: var(--on-surface);
  border: 1px solid var(--outline-v);
}
.btn-light:hover { background: var(--surface-mid); }
.btn-danger {
  background: var(--error);
  color: white;
}
.btn-sm { padding: 0.35rem 0.875rem; font-size: 0.8rem; }
.btn-lg { padding: 0.75rem 1.875rem; font-size: 1rem; }
.btn-icon {
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.form-control, .form-select {
  border-radius: var(--radius-sm);
  border: 1px solid var(--outline-v);
  color: var(--on-surface);
  background-color: var(--surface-bright);
  font-size: 0.875rem;
  padding: 0.5rem 0.875rem;
  transition: var(--transition-fast);
}
.form-select {
  padding-right: 2.25rem;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(62,87,83,0.12);
  background-color: var(--surface-bright);
  color: var(--on-surface);
  outline: none;
}
.form-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--on-surface-v);
  margin-bottom: 0.375rem;
  letter-spacing: 0.02em;
}
.form-text { font-size: 0.75rem; color: var(--outline); }

.badge {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.685rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-full);
  padding: 0.3em 0.75em;
}
.badge-active    { background: var(--success-container); color: var(--success); }
.badge-inactive  { background: var(--surface-high);      color: var(--on-surface-v); }
.badge-pending   { background: var(--warning-container);  color: var(--warning); }
.badge-error     { background: var(--error-container);    color: var(--error); }
.badge-info      { background: var(--info-container);     color: var(--info); }
.badge-primary   { background: var(--primary-fixed);      color: var(--on-primary-fixed-v); }
.badge-secondary { background: var(--secondary-container);color: var(--secondary); }

.table { color: var(--on-surface); margin: 0; }
.table th {
  font-family: 'Manrope', sans-serif;
  font-size: 0.685rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-v);
  background: var(--surface-low);
  border-bottom: 1px solid var(--outline-v);
  padding: 0.75rem 1rem;
  white-space: nowrap;
}
.table td {
  padding: 0.875rem 1rem;
  vertical-align: middle;
  border-bottom: 1px solid var(--surface-high);
  font-size: 0.875rem;
}
.table tbody tr:last-child td { border-bottom: none; }
.table-hover tbody tr { transition: background 0.12s; cursor: pointer; }
.table-hover tbody tr:hover td { background: var(--surface-low); }

.modal-content {
  border-radius: var(--radius-lg);
  border: none;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--outline-v);
}
.modal-body { padding: 1.5rem; }
.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--outline-v);
}
.modal-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  color: var(--primary);
  font-size: 1.125rem;
}

.nav-tabs { border-bottom: 1px solid var(--outline-v); }
.nav-tabs .nav-link {
  color: var(--on-surface-v);
  font-weight: 600;
  font-size: 0.875rem;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 0.625rem 1rem;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.nav-tabs .nav-link:hover { color: var(--primary); border-bottom-color: var(--primary-fixed); }
.nav-tabs .nav-link.active {
  color: var(--primary);
  background: transparent;
  border-bottom-color: var(--primary);
  font-weight: 700;
}

.dropdown-menu {
  border-radius: var(--radius);
  border: 1px solid var(--outline-v);
  box-shadow: var(--shadow);
  padding: 0.4rem;
  min-width: 200px;
}
.dropdown-item {
  border-radius: var(--radius-xs);
  font-size: 0.875rem;
  color: var(--on-surface);
  padding: 0.5rem 0.75rem;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.dropdown-item .material-symbols-outlined { font-size: 1rem; color: var(--on-surface-v); }
.dropdown-item:hover, .dropdown-item:focus {
  background: var(--surface-low);
  color: var(--primary);
}
.dropdown-item.text-danger:hover { background: var(--error-container); }
.dropdown-divider { border-color: var(--outline-v); margin: 0.25rem 0; }

.alert {
  border-radius: var(--radius);
  border: none;
  padding: 0.875rem 1.25rem;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.625rem;
}
.alert-success { background: var(--success-container); color: var(--success); }
.alert-danger   { background: var(--error-container);   color: var(--error); }
.alert-warning  { background: var(--warning-container);  color: var(--warning); }
.alert-info     { background: var(--info-container);     color: var(--info); }
.alert .material-symbols-outlined { font-size: 1.125rem; }

/* Pagination */
.pagination .page-link {
  color: var(--primary);
  border-color: var(--outline-v);
  border-radius: var(--radius-sm) !important;
  font-size: 0.875rem;
  padding: 0.375rem 0.75rem;
  margin: 0 2px;
  transition: var(--transition-fast);
}
.pagination .page-link:hover {
  background: var(--primary-fixed);
  border-color: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
}
.pagination .active .page-link {
  background: var(--primary);
  border-color: var(--primary);
}

/* === 4. PUBLIC LAYOUT === */

/* Solid Navbar — matches footer background */
.me-navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1030;
  height: var(--topbar-height);
  background: var(--primary);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid rgba(231,241,232,0.15);
  display: flex;
  align-items: center;
}
.me-navbar .container-xl { padding: 0 2rem; }

.me-navbar-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  opacity: 1;
  transition: opacity .2s;
}
.me-navbar-brand:hover { opacity: .85; }

.me-navbar-avatar-pill {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(231,241,232,0.15);
  border: 1px solid rgba(231,241,232,0.3);
  color: #e7f1e8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Manrope, sans-serif;
  font-weight: 800;
  font-size: .7rem;
  flex-shrink: 0;
  cursor: default;
}

.me-navbar-logout-btn {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  background: transparent;
  border: 1px solid rgba(255,180,171,0.4);
  border-radius: var(--radius-full, 2rem);
  color: #ffb4ab;
  padding: .3rem .9rem;
  font-size: .8rem;
  font-family: Manrope, sans-serif;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.me-navbar-logout-btn:hover { background: rgba(255,180,171,.1); border-color: rgba(255,180,171,.7); }
.me-navbar-logout-btn .material-symbols-outlined { font-size: .9rem; }
.me-nav-link {
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  color: rgba(231,241,232,0.65);
  text-decoration: none;
  padding: 0.25rem 0;
  position: relative;
  transition: color 0.15s;
}
.me-nav-link:hover { color: #e7f1e8; }
.me-nav-link.active {
  color: #e7f1e8;
  padding-bottom: 4px;
  border-bottom: 2px solid #e7f1e8;
}
.me-navbar-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-left: 1rem;
  margin-left: 0.5rem;
  border-left: 1px solid rgba(231,241,232,0.2);
}
.me-navbar-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(231,241,232,0.4);
  cursor: pointer;
}
.me-navbar-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.me-navbar-name {
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: 0.875rem;
  color: #e7f1e8;
  line-height: 1.2;
}
.me-navbar-role {
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(231,241,232,0.6);
}


/* Buttons inside the navbar */
.me-navbar .btn-outline-primary {
  color: #e7f1e8;
  border-color: rgba(231,241,232,0.45);
  background: transparent;
}
.me-navbar .btn-outline-primary:hover,
.me-navbar .btn-outline-primary:focus {
  background: rgba(231,241,232,0.12);
  color: #e7f1e8;
  border-color: rgba(231,241,232,0.7);
}
.me-navbar .btn-primary {
  background: #e7f1e8;
  border-color: #e7f1e8;
  color: var(--primary);
}
.me-navbar .btn-primary:hover,
.me-navbar .btn-primary:focus {
  background: #d4e8d5;
  border-color: #d4e8d5;
  color: var(--primary);
}

/* Initials avatar circle (inline-styled) — override for dark navbar */
.me-navbar div[title] {
  background: rgba(231,241,232,0.15) !important;
  color: #e7f1e8 !important;
  border: 1px solid rgba(231,241,232,0.3);
}

/* Logout button (inline-styled) — softer error tint on dark navbar */
.me-navbar form[action*="Logout"] button {
  color: #ffb4ab !important;
  border-color: rgba(255,180,171,0.4) !important;
}

/* Hero */
.me-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--topbar-height) + 5rem) 0 7rem;
  overflow: hidden;
  background: linear-gradient(150deg, var(--primary-fixed) 0%, var(--surface) 55%);
}
.me-hero-badge {
  display: inline-block;
  background: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
  font-size: 0.685rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}
.me-hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  line-height: 1.06;
  color: var(--primary);
  margin-bottom: 1.5rem;
}
.me-hero h1 em {
  font-style: italic;
  color: var(--primary-container);
}
.me-hero-desc {
  color: var(--on-surface-v);
  font-size: 1.0625rem;
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: 2.25rem;
}
.me-teacher-frame {
  border-radius: 3rem;
  overflow: hidden;
  aspect-ratio: 3/4;
  position: relative;
  animation: teacherFloat 5s ease-in-out infinite, teacherGlow 5s ease-in-out infinite;
  transition: transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.me-teacher-frame:hover {
  animation-play-state: paused;
  transform: translateY(0) scale(1.02);
}
.me-teacher-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}
.me-hero-float-card {
  position: absolute;
  bottom: -1.5rem;
  left: -1.5rem;
  background: var(--surface-bright);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  max-width: 270px;
  transform: rotate(-3deg);
  transition: transform 0.4s ease;
  z-index: 2;
}
.me-hero-float-card:hover { transform: rotate(0deg); }
.me-hero-float-icon {
  color: var(--primary-container);
  font-size: 1.375rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.me-hero-float-title {
  font-weight: 800;
  color: var(--primary);
  font-size: 0.9rem;
  font-family: 'Manrope', sans-serif;
  margin-bottom: 0.25rem;
}
.me-hero-float-text { font-size: 0.8rem; color: var(--on-surface-v); }

/* Stats band */
.me-stats-band {
  background: var(--surface-low);
  padding: 5rem 0;
}
.me-stat-cell {
  background: var(--surface-bright);
  border-radius: var(--radius);
  padding: 2.25rem 1.75rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--outline-v);
}
.me-stat-cell:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.me-stat-cell.featured {
  background: var(--primary-container);
  border-color: var(--primary-container);
}
.me-stat-cell-value {
  font-family: 'Manrope', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.me-stat-cell.featured .me-stat-cell-value { color: var(--primary-fixed); }
.me-stat-cell-label {
  font-size: 0.685rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-surface-v);
}
.me-stat-cell.featured .me-stat-cell-label { color: rgba(231,241,232,0.7); }

/* Section commons */
.me-section { padding: 5rem 0; }
.me-section-tag {
  font-size: 0.685rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 0.75rem;
}
.me-section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.me-section-subtitle { color: var(--on-surface-v); font-size: 0.9375rem; }

/* Achievers carousel */
.me-achievers-scroll {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding: 0 2rem 1.5rem;
  scrollbar-width: none;
}
.me-achievers-scroll::-webkit-scrollbar { display: none; }
.me-achiever-card {
  min-width: 280px;
  background: var(--surface-low);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  flex-shrink: 0;
}
.me-achiever-card:hover { transform: scale(1.02); box-shadow: var(--shadow); }
.me-achiever-photo {
  position: relative;
  margin-bottom: 1.75rem;
}
.me-achiever-photo-inner {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  filter: grayscale(1);
  transition: filter 0.5s;
}
.me-achiever-card:hover .me-achiever-photo-inner { filter: grayscale(0); }
.me-achiever-photo-inner img { width: 100%; height: 100%; object-fit: cover; }
.me-achiever-score {
  position: absolute;
  bottom: -1rem;
  right: -1rem;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--primary);
  color: var(--on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 0.9375rem;
  border: 3px solid var(--surface-low);
}
.me-achiever-name {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--primary);
  margin-bottom: 0.25rem;
}
.me-achiever-course { font-size: 0.8rem; color: var(--on-surface-v); margin-bottom: 1rem; }
.me-stars { color: var(--primary-fixed-dim); font-size: 1rem; }
.me-stars .material-symbols-outlined {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  font-size: 1.125rem;
}

/* Institutions band */
.me-institutions {
  background: rgba(226,227,225,0.3);
  padding: 4rem 0;
}
.me-inst-logos {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  align-items: center;
  opacity: 0.55;
}
.me-inst-logos span {
  font-family: 'Manrope', sans-serif;
  font-size: 1.125rem;
  font-weight: 900;
  color: var(--secondary);
  text-align: center;
  filter: grayscale(1);
  transition: filter 0.25s, opacity 0.25s;
  cursor: default;
}
.me-inst-logos span:hover { filter: grayscale(0); opacity: 1; }

/* Resources bento */
.me-resource-card {
  background: var(--surface-low);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-v);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}
.me-resource-card:hover { background: var(--surface-mid); }
.me-resource-card.featured {
  background: var(--primary-container);
  border-color: var(--primary-container);
  overflow: hidden;
  position: relative;
}
.me-resource-card.featured .me-bg-icon {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  font-size: 10rem;
  color: rgba(231,241,232,0.1);
  transition: transform 0.4s ease;
}
.me-resource-card.featured:hover .me-bg-icon { transform: rotate(12deg); }
.me-resource-label {
  font-size: 0.685rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 0.75rem;
}
.me-resource-card.featured .me-resource-label { color: rgba(231,241,232,0.7); }
.me-resource-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--primary);
}
.me-resource-card.featured .me-resource-title { color: white; font-size: 1.875rem; line-height: 1.2; }
.me-resource-desc { font-size: 0.875rem; color: var(--on-surface-v); }
.me-resource-card.featured .me-resource-desc { color: rgba(231,241,232,0.8); }
.me-resource-link {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: gap 0.2s ease;
}
.me-resource-link:hover { gap: 0.625rem; color: var(--primary-container); }

/* Books */
.me-book-card .me-book-cover {
  aspect-ratio: 3/4;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
  transition: transform 0.5s ease;
  background: var(--surface-highest);
}
.me-book-card:hover .me-book-cover { transform: translateY(-10px); }
.me-book-cover img { width: 100%; height: 100%; object-fit: cover; }
.me-book-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.me-book-desc { font-size: 0.8rem; color: var(--on-surface-v); margin-bottom: 1rem; line-height: 1.6; }
.me-book-actions { display: flex; gap: 1.25rem; }
.me-book-action-btn {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0;
  transition: color 0.15s;
}
.me-book-action-btn:hover { color: var(--primary-container); }
.me-book-action-btn .material-symbols-outlined { font-size: 0.875rem; }

/* Public Footer */
.me-footer {
  background: var(--primary);
  color: #e7f1e8;
  padding: 4.5rem 0 2rem;
}
.me-footer-text { color: rgba(231,241,232,0.45); font-size: 0.875rem; line-height: 1.75; }
.me-footer-heading {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--inverse-primary);
  margin-bottom: 1.25rem;
}
.me-footer-link {
  color: rgba(231,241,232,0.45);
  text-decoration: none;
  font-size: 0.875rem;
  display: block;
  padding: 0.25rem 0;
  transition: color 0.15s;
}
.me-footer-link:hover { color: white; }
.me-footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(231,241,232,0.45);
  font-size: 0.875rem;
  padding: 0.25rem 0;
}
.me-footer-contact-item .material-symbols-outlined { font-size: 0.9375rem; }
.me-footer-divider { border-color: rgba(231,241,232,0.1); margin: 2rem 0; }
.me-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.me-footer-copy { color: rgba(231,241,232,0.3); font-size: 0.7rem; letter-spacing: 0.1em; }
.me-footer-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--inverse-primary);
}
.me-footer-status::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4caf85;
  flex-shrink: 0;
}
.me-social-btn {
  width: 2.125rem;
  height: 2.125rem;
  border-radius: 50%;
  border: 1px solid rgba(231,241,232,0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(231,241,232,0.55);
  text-decoration: none;
  transition: var(--transition-fast);
}
.me-social-btn:hover { background: rgba(231,241,232,0.12); color: white; }
.me-social-btn .material-symbols-outlined { font-size: 1rem; }

/* === 5. DASHBOARD LAYOUT === */

/* Sidebar */
.me-sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--sidebar-bg);
  z-index: 1040;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.me-sidebar::-webkit-scrollbar { width: 0; }

.me-sidebar-logo {
  padding: 1.25rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  border-bottom: 1px solid rgba(231,241,232,0.08);
  flex-shrink: 0;
}
.me-sidebar-logo-icon {
  width: 38px; height: 38px;
  background: var(--primary-fixed);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.me-sidebar-logo-icon .material-symbols-outlined { color: var(--primary); font-size: 1.25rem; }
.me-sidebar-logo-name {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.1875rem;
  color: var(--primary-fixed);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.me-sidebar-logo-sub {
  font-size: 0.6rem;
  color: var(--sidebar-text);
  letter-spacing: 0.06em;
}

.me-sidebar-nav {
  flex: 1;
  padding: 0.875rem 0.625rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.me-sidebar-section {
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(231,241,232,0.3);
  padding: 0.875rem 0.75rem 0.25rem;
}
.me-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.875rem;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.me-nav-item:hover { background: var(--sidebar-hover-bg); color: var(--sidebar-text-hover); text-decoration: none; }
.me-nav-item.active {
  background: var(--sidebar-active-bg);
  color: var(--primary-fixed);
  font-weight: 700;
}
.me-nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 3px;
  background: var(--primary-fixed);
  border-radius: 0 2px 2px 0;
}
.me-nav-item .material-symbols-outlined { font-size: 1.125rem; flex-shrink: 0; }
.me-nav-count {
  margin-left: auto;
  background: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
  font-size: 0.6rem;
  font-weight: 800;
  padding: 0.15em 0.55em;
  border-radius: var(--radius-full);
  min-width: 18px;
  text-align: center;
}

.me-sidebar-bottom {
  padding: 0.75rem 0.625rem;
  border-top: 1px solid rgba(231,241,232,0.08);
  flex-shrink: 0;
}
.me-sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(231,241,232,0.06);
}
.me-sidebar-user-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(231,241,232,0.22);
  flex-shrink: 0;
}
.me-sidebar-user-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.me-sidebar-user-name { font-size: 0.8rem; font-weight: 700; color: var(--primary-fixed); line-height: 1.2; }
.me-sidebar-user-role { font-size: 0.63rem; color: var(--sidebar-text); }

/* Topbar */
.me-topbar {
  position: fixed;
  top: 0;
  left: var(--sidebar-width);
  right: 0;
  height: var(--topbar-height);
  background: var(--surface-bright);
  border-bottom: 1px solid var(--outline-v);
  z-index: 1030;
  display: flex;
  align-items: center;
  padding: 0 1.75rem;
  gap: 1rem;
  transition: left 0.3s ease;
}
.me-topbar-left { display: flex; align-items: center; gap: 0.75rem; flex: 1; min-width: 0; }
.me-topbar-menu-btn {
  display: none;
  width: 2rem; height: 2rem;
  border-radius: var(--radius-xs);
  border: none;
  background: transparent;
  color: var(--on-surface-v);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  flex-shrink: 0;
}
.me-topbar-menu-btn:hover { background: var(--surface-low); color: var(--primary); }
.me-topbar-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--primary);
  white-space: nowrap;
}
.me-topbar-search {
  flex: 1;
  max-width: 340px;
  position: relative;
}
.me-topbar-search .material-symbols-outlined {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9375rem;
  color: var(--outline);
  pointer-events: none;
}
.me-topbar-search input {
  width: 100%;
  padding: 0.45rem 1rem 0.45rem 2.375rem;
  background: var(--surface-low);
  border: 1px solid var(--outline-v);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--on-surface);
  outline: none;
  transition: var(--transition-fast);
}
.me-topbar-search input:focus {
  background: var(--surface-bright);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(19,66,61,0.1);
}
.me-topbar-right { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.me-topbar-icon-btn {
  width: 2.125rem; height: 2.125rem;
  border-radius: 50%;
  border: none;
  background: var(--surface-low);
  color: var(--on-surface-v);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
  flex-shrink: 0;
}
.me-topbar-icon-btn:hover { background: var(--surface-mid); color: var(--primary); }
.me-topbar-icon-btn .material-symbols-outlined { font-size: 1rem; }
.me-topbar-icon-btn .me-notif-dot {
  position: absolute;
  top: 3px; right: 3px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--error);
  border: 1.5px solid var(--surface-bright);
}
.me-topbar-avatar {
  width: 2.125rem; height: 2.125rem;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--primary-fixed);
  cursor: pointer;
  transition: border-color 0.15s;
  flex-shrink: 0;
}
.me-topbar-avatar:hover { border-color: var(--inverse-primary); }
.me-topbar-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.me-role-chip {
  background: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  white-space: nowrap;
  transition: var(--transition-fast);
  border: none;
}
.me-role-chip:hover { background: var(--primary-fixed-dim); }
.me-role-chip .material-symbols-outlined { font-size: 0.875rem; }

/* Main content */
.me-main {
  margin-left: var(--sidebar-width);
  padding-top: var(--topbar-height);
  min-height: 100vh;
  background: var(--surface);
  transition: margin-left 0.3s ease;
}
.me-content { padding: 2rem; }
.me-page-header { margin-bottom: 2rem; }
.me-breadcrumb {
  font-size: 0.78rem;
  color: var(--on-surface-v);
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.me-breadcrumb a { color: var(--on-surface-v); text-decoration: none; }
.me-breadcrumb a:hover { color: var(--primary); }
.me-breadcrumb .sep { opacity: 0.5; }
.me-page-title { font-size: 1.625rem; color: var(--primary); margin-bottom: 0.25rem; }
.me-page-subtitle { color: var(--on-surface-v); font-size: 0.9rem; font-weight: 400; }
.me-page-actions { display: flex; align-items: center; gap: 0.625rem; flex-wrap: wrap; }

/* === 6. DASHBOARD COMPONENTS === */

/* Stat Widget Cards */
.me-stat-widget {
  background: var(--surface-bright);
  border-radius: var(--radius);
  padding: 1.375rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-v);
  transition: var(--transition);
  height: 100%;
  animation: fadeInUp 0.4s ease both;
}
.me-stat-widget:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.me-stat-widget.accent-card {
  background: var(--primary);
  border-color: var(--primary);
}
.me-widget-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.me-widget-icon {
  width: 2.625rem; height: 2.625rem;
  border-radius: var(--radius-sm);
  background: var(--surface-low);
  display: flex;
  align-items: center;
  justify-content: center;
}
.me-widget-icon .material-symbols-outlined { color: var(--primary); font-size: 1.25rem; }
.me-stat-widget.accent-card .me-widget-icon {
  background: rgba(231,241,232,0.14);
}
.me-stat-widget.accent-card .me-widget-icon .material-symbols-outlined { color: var(--primary-fixed); }
.me-widget-trend {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2em 0.55em;
  border-radius: var(--radius-full);
}
.me-widget-trend.up { background: var(--success-container); color: var(--success); }
.me-widget-trend.down { background: var(--error-container); color: var(--error); }
.me-widget-value {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 2rem;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.25rem;
}
.me-stat-widget.accent-card .me-widget-value { color: white; }
.me-widget-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-surface-v);
}
.me-stat-widget.accent-card .me-widget-label { color: rgba(231,241,232,0.7); }
.me-widget-change {
  font-size: 0.78rem;
  color: var(--on-surface-v);
  margin-top: 0.375rem;
}
.me-stat-widget.accent-card .me-widget-change { color: rgba(231,241,232,0.6); }

/* Chart card */
.me-chart-card {
  background: var(--surface-bright);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-v);
  height: 100%;
}
.me-chart-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.me-chart-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 0.9375rem;
  color: var(--on-surface);
  margin-bottom: 0.2rem;
}
.me-chart-subtitle { font-size: 0.78rem; color: var(--on-surface-v); }
.me-chart-live-tag {
  background: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25em 0.6em;
  border-radius: var(--radius-full);
}
.me-chart-body { position: relative; }
.me-chart-legend {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.me-legend-item {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.78rem;
  color: var(--on-surface-v);
  font-weight: 500;
}
.me-legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.me-donut-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  text-align: center;
  pointer-events: none;
}
.me-donut-value {
  font-family: 'Manrope', sans-serif;
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.me-donut-label { font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-surface-v); }

/* Table card */
.me-table-card {
  background: var(--surface-bright);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-v);
  overflow: hidden;
}
.me-table-card-head {
  padding: 1.125rem 1.5rem;
  border-bottom: 1px solid var(--surface-high);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.625rem;
}
.me-table-card-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 0.9375rem;
  color: var(--on-surface);
}
.me-table-scroll { overflow-x: auto; }

/* Course card */
.me-course-card {
  background: var(--surface-bright);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--outline-v);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.me-course-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.me-course-thumb {
  height: 175px;
  position: relative;
  overflow: hidden;
}
.me-course-thumb-bg {
  width: 100%; height: 100%;
  background: var(--primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
}
.me-course-thumb-bg .material-symbols-outlined {
  font-size: 5rem;
  color: rgba(231,241,232,0.25);
}
.me-course-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  position: absolute;
  inset: 0;
}
.me-course-card:hover .me-course-thumb img { transform: scale(1.07); }
.me-course-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,31,28,0.88) 0%, transparent 55%);
}
.me-course-thumb-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 1rem 1.125rem;
}
.me-course-type-tag {
  display: inline-block;
  background: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2em 0.55em;
  border-radius: 3px;
  margin-bottom: 0.375rem;
}
.me-course-name {
  font-family: 'Manrope', sans-serif;
  font-size: 1.1875rem;
  font-weight: 800;
  color: white;
  line-height: 1.2;
}
.me-course-body {
  padding: 1.125rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.me-course-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.875rem;
}
.me-course-students {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8rem;
  color: var(--on-surface-v);
}
.me-course-students .material-symbols-outlined { font-size: 0.875rem; }
.me-avatar-stack { display: flex; }
.me-avatar-stack .av {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid var(--surface-bright);
  overflow: hidden;
  margin-left: -7px;
  background: var(--primary-fixed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 800;
  color: var(--on-primary-fixed-v);
}
.me-avatar-stack .av:first-child { margin-left: 0; }
.me-avatar-stack .av img { width: 100%; height: 100%; object-fit: cover; }
.me-course-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-top: auto;
}
.me-cbtn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0.475rem 0.5rem;
  border-radius: var(--radius-xs);
  background: var(--surface-low);
  border: 1px solid var(--outline-v);
  color: var(--on-surface);
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}
.me-cbtn:hover { background: var(--surface-mid); color: var(--primary); text-decoration: none; }
.me-cbtn.primary-btn {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  box-shadow: 0 4px 10px rgba(62,87,83,0.22);
}
.me-cbtn.primary-btn:hover { background: var(--primary-hover); transform: translateY(-1px); color: white; }
.me-cbtn .material-symbols-outlined { font-size: 0.8125rem; }

/* Filter bar */
.me-filter-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.me-filter-btn {
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--outline-v);
  background: var(--surface-bright);
  color: var(--on-surface-v);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.me-filter-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--surface-low); }
.me-filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Avatar helpers */
.me-avatar {
  border-radius: 50%;
  overflow: hidden;
  background: var(--primary-fixed);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  color: var(--on-primary-fixed-v);
  flex-shrink: 0;
}
.me-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.me-avatar.sm { width: 30px; height: 30px; font-size: 0.7rem; }
.me-avatar.md { width: 38px; height: 38px; font-size: 0.875rem; }
.me-avatar.lg { width: 52px; height: 52px; font-size: 1.125rem; }
.me-avatar.xl { width: 72px; height: 72px; font-size: 1.5rem; }

/* Progress bar */
.me-progress {
  height: 5px;
  background: var(--surface-high);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.me-progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
}
.me-progress-bar.success { background: var(--success); }
.me-progress-bar.warning { background: #e6a817; }
.me-progress-bar.danger  { background: var(--error); }

/* Sessions list items */
.me-session-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--surface-high);
}
.me-session-row:last-child { border-bottom: none; }
.me-session-date-box {
  background: var(--surface-low);
  border-radius: var(--radius-xs);
  padding: 0.5rem 0.625rem;
  text-align: center;
  min-width: 52px;
  flex-shrink: 0;
  border: 1px solid var(--outline-v);
}
.me-session-date-day {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
  line-height: 1;
}
.me-session-date-mon {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-v);
}
.me-session-title {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--on-surface);
  margin-bottom: 0.125rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.me-session-meta-row {
  font-size: 0.75rem;
  color: var(--on-surface-v);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.me-session-meta-row .material-symbols-outlined { font-size: 0.8125rem; }

/* Toast */
.me-toasts {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}
.me-toast {
  background: #2e3130;
  color: #f0f1ef;
  padding: 0.875rem 1.125rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  font-weight: 500;
  min-width: 260px;
  max-width: 340px;
  pointer-events: auto;
  animation: toastSlideIn 0.3s cubic-bezier(0.4,0,0.2,1);
}
.me-toast.success { border-left: 3px solid var(--success); }
.me-toast.error   { border-left: 3px solid var(--error); }
.me-toast.info    { border-left: 3px solid var(--info); }
.me-toast .material-symbols-outlined { font-size: 1.125rem; flex-shrink: 0; }
.me-toast.success .material-symbols-outlined { color: #4caf85; }
.me-toast.error   .material-symbols-outlined { color: #f47171; }
.me-toast.info    .material-symbols-outlined { color: #6fa8f5; }
.me-toast-close {
  margin-left: auto;
  background: none;
  border: none;
  color: rgba(240,241,239,0.5);
  cursor: pointer;
  padding: 0;
  display: flex;
  line-height: 1;
}
.me-toast-close:hover { color: white; }
.me-toast-close .material-symbols-outlined { font-size: 1rem; }

/* Skeleton loader */
.me-skeleton {
  background: linear-gradient(90deg, var(--surface-high) 25%, var(--surface-mid) 50%, var(--surface-high) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-xs);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }


/* Sidebar overlay on mobile */
.me-sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1039;
  backdrop-filter: blur(2px);
}
.me-sidebar-overlay.show { display: block; }

/* Empty state */
.me-empty {
  text-align: center;
  padding: 4rem 2rem;
}
.me-empty-icon {
  width: 4rem; height: 4rem;
  background: var(--surface-low);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.me-empty-icon .material-symbols-outlined { font-size: 1.75rem; color: var(--outline); }
.me-empty-title { font-family: 'Manrope', sans-serif; font-weight: 800; color: var(--on-surface); margin-bottom: 0.375rem; }
.me-empty-text { font-size: 0.875rem; color: var(--on-surface-v); }

/* Login page */
.me-login-page {
  min-height: 100vh;
  display: flex;
  background: var(--surface);
}
.me-login-left {
  flex: 1;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  position: relative;
  overflow: hidden;
}
.me-login-left::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 30%, rgba(231,241,232,0.1) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 70%, rgba(77,107,102,0.4) 0%, transparent 60%);
}
.me-login-left-content { position: relative; z-index: 1; max-width: 400px; }
.me-login-photo {
  border-radius: 1.5rem;
  overflow: hidden;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/5;
  max-width: 260px;
}
.me-login-photo img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.me-login-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  max-width: 560px;
}
.me-login-form-wrap { width: 100%; max-width: 400px; }
.me-login-brand { font-family: 'Manrope', sans-serif; font-weight: 800; font-size: 1.75rem; color: var(--primary); margin-bottom: 0.25rem; }
.me-login-tagline { color: var(--on-surface-v); font-size: 0.9rem; margin-bottom: 2.5rem; }

/* ── Co-teacher checkbox list ── */
.me-teacher-checklist {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  max-height: 180px;
  overflow-y: auto;
  border: 1px solid var(--outline-v);
  border-radius: 0.5rem;
  padding: 0.5rem;
  background: var(--surface-container);
}
.me-teacher-checklist-empty {
  font-size: 0.8rem;
  color: var(--on-surface-v);
  padding: 0.5rem 0.25rem;
}
.me-teacher-check-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.4rem 0.5rem;
  border-radius: 0.4rem;
  cursor: pointer;
  transition: background 0.15s;
  margin: 0;
}
.me-teacher-check-row:hover { background: var(--surface-bright); }
.me-teacher-check-row:has(.me-teacher-checkbox:checked) {
  background: color-mix(in srgb, var(--primary) 10%, transparent);
}
.me-teacher-checkbox {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  accent-color: var(--primary);
  cursor: pointer;
}
.me-teacher-check-avatar {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--primary-fixed);
  color: var(--on-primary-fixed-v);
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.me-teacher-check-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface);
}

/* ── Sign-in page ── */
.me-signin-page {
  min-height: 100vh;
  display: flex;
  background: var(--surface);
}

/* Hero left */
.me-signin-hero {
  width: 420px;
  flex-shrink: 0;
  position: relative;
  background: var(--primary);
  display: flex;
  align-items: stretch;
  overflow: hidden;
}
.me-signin-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(231,241,232,.12) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 80%, rgba(0,0,0,.25) 0%, transparent 60%);
  pointer-events: none;
}
.me-signin-hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  padding: 2.5rem 2rem;
  width: 100%;
}
.me-signin-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  margin-bottom: 2.5rem;
}
.me-signin-hero-photo-wrap {
  position: relative;
  margin-bottom: 2rem;
}
.me-signin-hero-photo {
  width: 100%;
  max-width: 280px;
  height: auto;
  object-fit: contain;
  object-position: top center;
  border-radius: var(--radius-lg);
  box-shadow: 0 32px 64px rgba(0,0,0,.35);
  display: block;
}
.me-signin-hero-badge {
  position: absolute;
  bottom: -12px;
  left: 12px;
  background: rgba(231,241,232,.15);
  border: 1px solid rgba(231,241,232,.3);
  backdrop-filter: blur(8px);
  color: #e7f1e8;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: .4rem .85rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: .35rem;
}
.me-signin-hero-headline {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.45rem;
  color: #fff;
  line-height: 1.25;
  margin-top: 1.75rem;
  margin-bottom: .6rem;
}
.me-signin-hero-sub {
  font-size: .82rem;
  color: rgba(231,241,232,.7);
  line-height: 1.6;
  margin-bottom: 2rem;
}
.me-signin-hero-stats {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(231,241,232,.15);
}
.me-signin-stat { text-align: center; }
.me-signin-stat-value {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  color: #fff;
  line-height: 1;
}
.me-signin-stat-label {
  font-size: .65rem;
  color: rgba(231,241,232,.6);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-top: .2rem;
}
.me-signin-stat-sep {
  width: 1px;
  height: 32px;
  background: rgba(231,241,232,.2);
}

/* Form right */
.me-signin-form-side {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  overflow-y: auto;
}
.me-signin-form-wrap {
  width: 100%;
  max-width: 440px;
}

/* Tabs */
.me-signin-tabs {
  display: flex;
  gap: .5rem;
  background: var(--surface-low);
  border-radius: var(--radius);
  padding: .35rem;
  margin-bottom: 2.25rem;
}
.me-signin-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  background: none;
  border: none;
  border-radius: calc(var(--radius) - 3px);
  padding: .6rem 1rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--on-surface-v);
  cursor: pointer;
  transition: background .18s, color .18s, box-shadow .18s;
}
.me-signin-tab .material-symbols-outlined { font-size: .95rem; }
.me-signin-tab.active {
  background: var(--surface-bright);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Panel */
.me-signin-panel-header { margin-bottom: 2rem; }
.me-signin-panel-title {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.7rem;
  color: var(--on-surface);
  line-height: 1.2;
  margin-bottom: .35rem;
}
.me-signin-panel-sub { font-size: .875rem; color: var(--on-surface-v); }

/* Fields */
.me-signin-field { margin-bottom: 1.1rem; }
.me-signin-label {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .8rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: .5rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.me-signin-label .material-symbols-outlined { font-size: .9rem; color: var(--primary); }
.me-signin-input {
  width: 100%;
  background: var(--surface-low);
  border: 1.5px solid var(--outline-v);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  font-size: .9rem;
  color: var(--on-surface);
  outline: none;
  transition: border-color .18s, box-shadow .18s, background .18s;
}
.me-signin-input:focus {
  border-color: var(--primary);
  background: var(--surface-bright);
  box-shadow: 0 0 0 3px rgba(62,87,83,.1);
}
.me-signin-input::placeholder { color: var(--on-surface-v); opacity: .6; }
.me-signin-eye {
  position: absolute;
  right: .75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--on-surface-v);
  display: flex;
  align-items: center;
  padding: .25rem;
}
.me-signin-eye .material-symbols-outlined { font-size: 1.1rem; }
.me-signin-forgot {
  font-size: .78rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}
.me-signin-forgot:hover { text-decoration: underline; }
.me-signin-check {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  color: var(--on-surface);
  cursor: pointer;
}
.me-signin-check input { accent-color: var(--primary); width: 15px; height: 15px; cursor: pointer; }

/* Buttons */
.me-signin-btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  width: 100%;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: .85rem 1.5rem;
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .18s, box-shadow .18s, transform .12s;
  box-shadow: var(--shadow-p);
}
.me-signin-btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px -4px rgba(62,87,83,.38);
}
.me-signin-btn-primary:active { transform: translateY(0); }
.me-signin-btn-primary .material-symbols-outlined { font-size: 1rem; }

.me-signin-btn-outline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: none;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: .85rem 1.5rem;
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .18s, transform .12s;
}
.me-signin-btn-outline:hover { background: var(--primary-container); color: var(--primary-fixed); transform: translateY(-1px); }
.me-signin-btn-outline .material-symbols-outlined { font-size: 1rem; }

/* Note */
.me-signin-note {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  color: var(--on-surface-v);
  margin-top: 1.5rem;
  padding: .75rem 1rem;
  background: var(--surface-low);
  border-radius: var(--radius-sm);
}
.me-signin-note .material-symbols-outlined { font-size: .875rem; flex-shrink: 0; }

/* Features */
.me-signin-features {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.me-signin-feature {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: .85rem 1rem;
  background: var(--surface-low);
  border-radius: var(--radius-sm);
  border: 1px solid var(--outline-v);
  transition: border-color .18s, background .18s;
}
.me-signin-feature:hover { border-color: var(--primary-fixed-dim); background: var(--surface-mid); }
.me-signin-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.me-signin-feature-icon .material-symbols-outlined { font-size: 1.1rem; color: var(--primary-fixed); }
.me-signin-feature-title { font-size: .875rem; font-weight: 700; color: var(--on-surface); margin-bottom: .15rem; }
.me-signin-feature-desc { font-size: .78rem; color: var(--on-surface-v); line-height: 1.4; }

/* App badge */
.me-signin-app-badge {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .85rem 1rem;
  border: 1.5px dashed var(--outline-v);
  border-radius: var(--radius-sm);
}

/* Responsive */
@media (max-width: 900px) {
  .me-signin-hero { width: 320px; }
  .me-signin-hero-photo { max-width: 220px; }
  .me-signin-hero-headline { font-size: 1.2rem; }
}
@media (max-width: 640px) {
  .me-signin-page { flex-direction: column; }
  .me-signin-hero { width: 100%; min-height: 0; }
  .me-signin-hero-content { padding: 1.75rem 1.5rem; flex-direction: row; flex-wrap: wrap; align-items: center; gap: 1rem; }
  .me-signin-logo { margin-bottom: 0; }
  .me-signin-hero-photo-wrap { display: none; }
  .me-signin-hero-headline { font-size: 1.1rem; margin-top: 0; }
  .me-signin-hero-sub { display: none; }
  .me-signin-hero-stats { padding-top: .75rem; border-top: none; margin-top: 0; }
  .me-signin-form-side { padding: 2rem 1.25rem; }
}

/* === 7. ANIMATIONS === */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes teacherFloat {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-16px); }
}
@keyframes teacherGlow {
  0%, 100% { box-shadow: 0 25px 50px rgba(0,0,0,0.15); }
  50%       { box-shadow: 0 40px 80px rgba(62,87,83,0.28), 0 0 0 10px rgba(62,87,83,0.07); }
}
@keyframes statPop {
  0%   { opacity: 0; transform: translateY(24px) scale(0.95); }
  60%  { transform: translateY(-4px) scale(1.02); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(100%); }
  to   { opacity: 1; transform: translateX(0); }
}
.animate-up { animation: fadeInUp 0.4s ease both; }
.animate-up-1 { animation-delay: 0.05s; }
.animate-up-2 { animation-delay: 0.1s; }
.animate-up-3 { animation-delay: 0.15s; }
.animate-up-4 { animation-delay: 0.2s; }
.me-stat-cell.animate-up { animation: statPop 0.55s cubic-bezier(0.34,1.56,0.64,1) both; }
.me-stat-cell.animate-up:nth-child(1) { animation-delay: 0s; }
.me-stat-cell.animate-up:nth-child(2) { animation-delay: 0.1s; }
.me-stat-cell.animate-up:nth-child(3) { animation-delay: 0.2s; }
.me-stat-cell.animate-up:nth-child(4) { animation-delay: 0.3s; }

/* === 8. RESPONSIVE === */
@media (max-width: 992px) {
  .me-sidebar { transform: translateX(-100%); }
  .me-sidebar.show { transform: translateX(0); }
  .me-topbar { left: 0; }
  .me-main { margin-left: 0; }
  .me-topbar-menu-btn { display: flex; }
  .me-login-left { display: none; }
  .me-login-right { max-width: 100%; }
}
@media (max-width: 768px) {
  .me-content { padding: 1rem; }
  .me-topbar-search { display: none; }
  .me-teacher-frame { animation: none; transform: none; margin-top: 2rem; }
  .me-hero-float-card { display: none; }
  .me-course-btns { grid-template-columns: repeat(2, 1fr); }
  .me-inst-logos { grid-template-columns: repeat(2, 1fr); }
}


/* ── Logo image — aspect-ratio safe across all placements ── */
.me-logo-img {
  display: block;
  height: 38px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  object-position: left center;
  flex-shrink: 0;
}
.me-logo-img--navbar {
  height: 52px;
}
.me-logo-img--login {
  height: 44px;
}
.me-logo-img--footer {
  height: 52px;
  margin-bottom: .75rem;
}
.me-hero-inline-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.me-hero-inline-metrics strong {
  display: block;
  font-family: 'Manrope', sans-serif;
  font-size: 1.1rem;
  color: var(--primary);
}
.me-hero-inline-metrics span {
  font-size: 0.78rem;
  color: var(--on-surface-v);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.me-topbar-subtitle {
  font-size: 0.72rem;
  color: var(--on-surface-v);
}
.me-role-panel,
.me-insight-card {
  background: var(--surface-low);
  border: 1px solid var(--outline-v);
  border-radius: var(--radius);
  padding: 1rem;
  transition: var(--transition-fast);
}
.me-role-panel.active {
  background: var(--primary-fixed);
  border-color: var(--primary-fixed-dim);
  box-shadow: var(--shadow-sm);
}

/* ═══════════════════════════════════════════════════════
   COURSE CATALOG — public homepage
   ═══════════════════════════════════════════════════════ */
.me-courses-section {
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-low) 100%);
  position: relative;
  overflow: hidden;
}
.me-courses-section::before {
  content: '';
  position: absolute;
  top: -160px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(ellipse, rgba(62,87,83,.06) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Filter pills ── */
.me-cfilter-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: center;
}
.me-cfilter-btn {
  padding: .45rem 1.2rem;
  border-radius: 100px;
  border: 1.5px solid var(--outline-v);
  background: var(--surface);
  color: var(--on-surface-v);
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  font-size: .8rem;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s, transform .15s;
}
.me-cfilter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-fixed);
  transform: translateY(-1px);
}
.me-cfilter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(62,87,83,.3);
}

/* ── Grid ── */
.me-courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

/* ── Card base ── */
.me-course-card {
  border-radius: 1.125rem;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--outline-v);
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(36px) scale(.97);
  transition:
    opacity .55s ease var(--card-delay, 0s),
    transform .6s cubic-bezier(.22,1,.36,1) var(--card-delay, 0s),
    box-shadow .3s ease;
  will-change: transform, opacity;
}
.me-course-card.me-card-visible {
  opacity: 1;
  transform: none;
}
.me-course-card.me-card-visible:hover {
  transform: translateY(-10px) scale(1.015);
  box-shadow: 0 22px 52px rgba(62,87,83,.16);
  transition:
    transform .35s cubic-bezier(.34,1.56,.64,1),
    box-shadow .35s ease;
}

/* ── Card header (gradient area) ── */
.me-course-card-header {
  position: relative;
  height: 136px;
  background: linear-gradient(140deg, var(--grad-start, #3e5753), var(--grad-end, #c8ddc9));
  overflow: hidden;
  flex-shrink: 0;
}
.me-course-header-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .4rem;
}
.me-course-icon {
  font-size: 2.75rem;
  color: rgba(255,255,255,.82);
  filter: drop-shadow(0 2px 6px rgba(0,0,0,.25));
  transition: transform .35s cubic-bezier(.34,1.56,.64,1);
}
.me-course-card.me-card-visible:hover .me-course-icon {
  transform: scale(1.18) translateY(-3px);
}
.me-course-type-badge {
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: .6rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: rgba(255,255,255,.75);
  background: rgba(0,0,0,.22);
  padding: .15rem .65rem;
  border-radius: 100px;
  backdrop-filter: blur(4px);
}

/* Open-card shimmer sweep */
.me-card-shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 20%, rgba(255,255,255,.09) 50%, transparent 80%);
  animation: shimmer-sweep 2.8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes shimmer-sweep {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(220%); }
}

/* ── Status pill ── */
.me-course-status-pill {
  position: absolute;
  top: .7rem;
  right: .7rem;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .22rem .7rem;
  border-radius: 100px;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: .62rem;
  text-transform: uppercase;
  letter-spacing: .09em;
  backdrop-filter: blur(6px);
}
.me-course-status-pill--open {
  background: rgba(22,163,74,.18);
  color: #15803d;
  border: 1px solid rgba(22,163,74,.45);
}
.me-course-status-pill--ongoing {
  background: rgba(37,99,235,.18);
  color: #1d4ed8;
  border: 1px solid rgba(37,99,235,.4);
}
.me-course-status-pill--soon {
  background: rgba(0,0,0,.3);
  color: rgba(255,255,255,.88);
  border: 1px solid rgba(255,255,255,.22);
}

/* Pulsing dot for open */
.me-pulse-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #16a34a;
  position: relative;
  flex-shrink: 0;
}
.me-pulse-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: rgba(22,163,74,.45);
  animation: pulse-ring 1.6s ease-out infinite;
}
@keyframes pulse-ring {
  0%   { transform: scale(1); opacity: 1; }
  100% { transform: scale(2.8); opacity: 0; }
}

/* ── Card body ── */
.me-course-card-body {
  padding: 1.2rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  flex: 1;
}
.me-course-family {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--on-surface-v);
}
.me-course-name {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--primary);
  line-height: 1.3;
  margin: 0;
}

/* Semester / sub-course tags */
.me-course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
}
.me-course-tag {
  font-size: .65rem;
  font-weight: 700;
  color: var(--on-primary-fixed-v);
  background: var(--primary-fixed);
  padding: .15rem .6rem;
  border-radius: 100px;
}
.me-course-tag--sub {
  background: var(--accent-container);
  color: var(--accent-hover);
}

/* Meta row (date) */
.me-course-meta-row {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .78rem;
  color: var(--on-surface-v);
}
.me-course-meta-row .material-symbols-outlined {
  font-size: .95rem;
  color: var(--accent);
}

/* ── Capacity bar ── */
.me-course-cap-wrap { display: flex; flex-direction: column; gap: .3rem; }
.me-course-cap-bar {
  height: 5px;
  background: var(--surface-highest, #e8eae8);
  border-radius: 100px;
  overflow: hidden;
}
.me-course-cap-fill {
  height: 100%;
  width: 0;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 1.4s cubic-bezier(.22,1,.36,1);
}
.me-course-cap-text {
  display: flex;
  justify-content: space-between;
  font-size: .68rem;
  color: var(--on-surface-v);
}

/* ── Footer ── */
.me-course-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-top: auto;
  padding-top: .8rem;
  border-top: 1px solid var(--outline-v);
}
.me-course-price { display: flex; flex-direction: column; gap: .1rem; }
.me-course-price-val {
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: .925rem;
  color: var(--primary);
}
.me-course-installments {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  font-size: .63rem;
  font-weight: 700;
  color: var(--accent);
}
.me-course-installments .material-symbols-outlined { font-size: .75rem; }

/* CTA button */
.me-course-cta {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .5rem 1rem;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: .6rem;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: .78rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background .2s, transform .15s, box-shadow .2s;
  flex-shrink: 0;
}
.me-course-cta:hover {
  background: var(--primary-hover);
  transform: scale(1.05);
  box-shadow: 0 6px 18px rgba(62,87,83,.28);
}
.me-course-cta .material-symbols-outlined {
  font-size: .9rem;
  transition: transform .2s;
}
.me-course-cta:hover .material-symbols-outlined { transform: translateX(3px); }
.me-course-cta--soon {
  background: var(--on-surface-v);
}
.me-course-cta--soon:hover { background: var(--on-surface, #1a1c1a); }
.me-course-cta--ongoing {
  background: #2563eb;
}
.me-course-cta--ongoing:hover { background: #1d4ed8; }

/* ── Status strip (between header and body) ── */
.me-course-status-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .38rem 1rem;
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  font-size: .67rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  flex-shrink: 0;
}
.me-course-status-strip--open {
  background: rgba(22,163,74,.1);
  color: #15803d;
  border-top: 1px solid rgba(22,163,74,.18);
  border-bottom: 1px solid rgba(22,163,74,.18);
}
.me-course-status-strip--ongoing {
  background: rgba(37,99,235,.08);
  color: #1d4ed8;
  border-top: 1px solid rgba(37,99,235,.18);
  border-bottom: 1px solid rgba(37,99,235,.18);
}
.me-course-status-strip--soon {
  background: var(--surface-low);
  color: var(--on-surface-v);
  border-top: 1px solid var(--outline-v);
  border-bottom: 1px solid var(--outline-v);
}

/* ── Filter-hidden state (during filter transitions) ── */
.me-course-card.me-card-hiding {
  opacity: 0 !important;
  transform: scale(.93) translateY(10px) !important;
  pointer-events: none;
  transition: opacity .22s ease, transform .22s ease !important;
}
.me-course-card.me-card-showing {
  opacity: 0;
  transform: scale(.94) translateY(12px);
}

/* ── Responsive ── */
@media (max-width: 992px) { .me-courses-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px)  { .me-courses-grid { grid-template-columns: 1fr; } }

/* ============================================================
   ROUND CARDS
   ============================================================ */

/* ── Card shell ── */
.me-round-card {
  background: var(--surface-bright);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--surface-high);
  display: flex;
  flex-direction: column;
  transition: transform .25s cubic-bezier(.4,0,.2,1), box-shadow .25s cubic-bezier(.4,0,.2,1);
  box-shadow: var(--shadow-sm);
}
.me-round-card.me-card-visible { opacity: 1; }
.me-round-card.me-card-visible:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

/* ── Gradient header ── */
.me-round-card-header {
  position: relative;
  height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: .875rem 1rem;
  overflow: hidden;
}
.me-round-card-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,.28));
  pointer-events: none;
}
.me-round-card-header-top {
  position: absolute;
  top: .75rem;
  left: .875rem;
  right: .875rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 2;
}
.me-round-family-badge {
  font-family: 'Inter', sans-serif;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .1em;
  padding: .25em .65em;
  border-radius: var(--radius-xs);
  background: rgba(255,255,255,.22);
  color: #fff;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,.3);
}
.me-round-menu-btn {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius-sm);
  color: #fff;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .15s ease;
  backdrop-filter: blur(4px);
}
.me-round-menu-btn:hover { background: rgba(255,255,255,.3); }
.me-round-menu-btn .material-symbols-outlined { font-size: .95rem; }
.me-round-card-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-60%);
  opacity: .18;
  z-index: 1;
}
.me-round-card-icon .material-symbols-outlined {
  font-size: 4.5rem;
  color: #fff;
  font-variation-settings: 'FILL' 0, 'wght' 200, 'GRAD' 0, 'opsz' 48;
}
.me-round-card-title {
  position: relative;
  z-index: 2;
  font-family: 'Manrope', sans-serif;
  font-weight: 800;
  font-size: .95rem;
  color: #fff;
  line-height: 1.3;
  text-shadow: 0 1px 3px rgba(0,0,0,.25);
}

/* ── Card body ── */
.me-round-card-body {
  padding: 1rem 1.125rem .875rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .625rem;
}

/* Meta info grid */
.me-round-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .25rem .75rem;
}
.me-round-meta-item { display: flex; flex-direction: column; gap: .1rem; }
.me-round-meta-label {
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--on-surface-v);
}
.me-round-meta-value {
  font-size: .82rem;
  font-weight: 700;
  color: var(--on-surface);
}
.me-round-meta-active { color: var(--success); }
.me-round-meta-inactive { color: var(--on-surface-v); }

/* Dates */
.me-round-dates {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .78rem;
  color: var(--on-surface-v);
}
.me-round-dates .material-symbols-outlined { font-size: .9rem; }

/* Students row */
.me-round-students-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .35rem;
}
.me-round-student-count {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--on-surface);
}
.me-round-student-count .material-symbols-outlined { font-size: 1rem; color: var(--primary); }
.me-round-suspended-count { font-size: .72rem; font-weight: 500; color: var(--warning); }
.me-round-reg-closed-badge {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: .25em .7em;
  border-radius: var(--radius-full);
  background: var(--warning-container);
  color: var(--warning);
}
.me-round-reg-open-badge {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: .25em .7em;
  border-radius: var(--radius-full);
  background: var(--success-container);
  color: var(--success);
}

/* Capacity bar */
.me-round-capacity { display: flex; flex-direction: column; gap: .3rem; }
.me-round-capacity-label {
  display: flex;
  justify-content: space-between;
  font-size: .72rem;
  color: var(--on-surface-v);
  font-weight: 600;
}
.me-round-capacity-bar {
  height: 5px;
  background: var(--surface-high);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.me-round-capacity-fill {
  height: 100%;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: width .4s ease;
}
.me-round-capacity-fill.me-cap-mid  { background: var(--accent); }
.me-round-capacity-fill.me-cap-high { background: var(--error); }

/* Price */
.me-round-price-row {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .78rem;
  color: var(--on-surface-v);
  border-top: 1px solid var(--surface-high);
  padding-top: .5rem;
  margin-top: .125rem;
}
.me-round-price-row .material-symbols-outlined { font-size: .9rem; color: var(--accent); }

/* ── Card footer ── */
.me-round-card-footer {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  border-top: 1px solid var(--surface-high);
}
.me-round-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .3rem;
  padding: .625rem .25rem;
  font-family: 'Manrope', sans-serif;
  font-size: .72rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
  border-right: 1px solid var(--surface-high);
}
.me-round-action-btn:last-child { border-right: none; }
.me-round-action-btn .material-symbols-outlined { font-size: .9rem; }
.me-round-action-outline {
  background: transparent;
  color: var(--on-surface);
}
.me-round-action-outline:hover { background: var(--surface-low); }
.me-round-action-solid {
  background: var(--primary);
  color: #fff;
}
.me-round-action-solid:hover { background: var(--primary-hover); }

/* ── Empty state ── */
.me-empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--on-surface-v);
}
.me-empty-state .material-symbols-outlined { font-size: 3rem; margin-bottom: .75rem; display: block; }

/* ── Coming soon block ── */
.me-coming-soon-block {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--on-surface-v);
}
.me-coming-soon-block .material-symbols-outlined { font-size: 2.5rem; color: var(--outline-v); }

/* =============================================
   MATERIALS PAGE
   ============================================= */

/* Page wrapper */
.me-mat-page { max-width: 900px; }
.me-mat-page--portal { max-width: 860px; margin: 0 auto; padding: 1.5rem; }

/* Portal header (non-staff) */
.me-portal-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--surface-card); border-bottom: 1px solid var(--outline-v);
  height: 60px; display: flex; align-items: center;
}
.me-portal-header-inner { width: 100%; max-width: 900px; margin: 0 auto; padding: 0 1.25rem; display: flex; align-items: center; }

/* Course block */
.me-mat-course-block {
  border: 1px solid var(--outline-v);
  border-radius: 12px;
  overflow: hidden;
}
.me-mat-course-header {
  display: flex; align-items: center; gap: 12px;
  padding: .9rem 1.2rem;
  color: #fff;
}
.me-mat-course-icon { font-size: 1.6rem; opacity: .9; }
.me-mat-course-name { font-family: Manrope, sans-serif; font-weight: 700; font-size: 1rem; }
.me-mat-course-count { font-size: .78rem; opacity: .8; }

.me-mat-course-body { padding: .75rem 1rem .5rem; }

/* Scope labels */
.me-mat-scope-label {
  display: flex; align-items: center; gap: 6px;
  font-size: .78rem; font-weight: 600; color: var(--on-surface-v);
  text-transform: uppercase; letter-spacing: .04em;
  padding: .4rem 0 .3rem;
}
.me-mat-scope-label .material-symbols-outlined { font-size: 15px; }

/* Round block */
.me-mat-round-block { margin-top: .5rem; }
.me-mat-round-label {
  display: flex; align-items: center; gap: 6px;
  font-size: .82rem; font-weight: 700; color: var(--primary);
  padding: .45rem 0 .3rem;
}
.me-mat-round-label .material-symbols-outlined { font-size: 16px; }
.me-mat-count-chip {
  background: var(--primary-fixed); color: var(--primary);
  font-size: .7rem; font-weight: 700; border-radius: 20px;
  padding: 1px 7px; margin-left: 2px;
}

/* Session block */
.me-mat-session-block { margin-left: 1.25rem; margin-top: .25rem; }
.me-mat-session-label {
  display: flex; align-items: center; gap: 5px;
  font-size: .78rem; color: var(--on-surface-v); padding: .35rem 0 .2rem;
}

/* Material row */
.me-mat-row {
  display: flex; align-items: center; gap: .75rem;
  padding: .6rem .75rem;
  border-radius: 8px;
  margin-bottom: .3rem;
  background: var(--surface-bg);
  border: 1px solid var(--outline-v);
  transition: background .15s;
}
.me-mat-row:hover { background: var(--primary-fixed); }
.me-mat-row--unpublished { opacity: .6; border-style: dashed; }

.me-mat-row-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--primary-fixed); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.me-mat-row-icon .material-symbols-outlined { font-size: 18px; color: var(--primary); }

.me-mat-row-info { flex: 1; min-width: 0; }
.me-mat-row-title { font-weight: 600; font-size: .88rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.me-mat-row-desc  { font-size: .76rem; color: var(--on-surface-v); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.me-mat-row-actions { display: flex; align-items: center; gap: .35rem; flex-shrink: 0; }

/* Badges */
.me-mat-badge {
  font-size: .7rem; font-weight: 700; border-radius: 20px; padding: 2px 8px;
  display: inline-flex; align-items: center;
}
.me-mat-badge--free  { background: #e6f7ee; color: #1a7d46; }
.me-mat-badge--paid  { background: #fff4e0; color: #b45309; }
.me-mat-badge--draft { background: #f0f0f0; color: #888; }
.me-mat-size { font-size: .72rem; color: var(--on-surface-v); }

/* Action buttons */
.me-mat-btn {
  display: inline-flex; align-items: center; gap: 4px;
  padding: .3rem .65rem; border-radius: 6px;
  font-size: .78rem; font-weight: 600;
  text-decoration: none; cursor: pointer; border: none;
  transition: opacity .15s, background .15s;
}
.me-mat-btn--download { background: var(--primary); color: #fff; }
.me-mat-btn--download:hover { background: var(--primary-hover); color: #fff; }
.me-mat-btn--watch    { background: #4f46e5; color: #fff; }
.me-mat-btn--watch:hover { opacity: .85; color: #fff; }
.me-mat-btn--locked   { background: var(--outline-v); color: var(--on-surface-v); cursor: default; }
.me-mat-btn--icon {
  background: transparent; border: 1px solid var(--outline-v);
  color: var(--on-surface-v); padding: .3rem;
}
.me-mat-btn--icon:hover { background: var(--primary-fixed); color: var(--primary); }
.me-mat-btn--danger:hover { background: #fee2e2; color: #dc2626; border-color: #fca5a5; }

/* Empty state (reuse existing .me-empty-state, add icon size tweak) */
.me-empty-icon { font-size: 2.5rem !important; color: var(--outline-v); }