/* ============================================================
   SWD Academy LMS – Full Stylesheet
   ============================================================ */

:root {
  --lms-navy:          #002147;
  --lms-navy-dark:     #001530;
  --lms-navy-light:    #003580;
  --lms-red:           #c0392b;
  --lms-red-dark:      #a82820;
  --lms-white:         #ffffff;
  --lms-sidebar-bg:    #1a2744;
  --lms-sidebar-hover: #243258;
  --lms-sidebar-w:     240px;
  --lms-topbar-h:      64px;
  --lms-bg:            #f1f5f9;
  --lms-card-bg:       #ffffff;
  --lms-border:        #e2e8f0;
  --lms-text-dark:     #1a2744;
  --lms-text-muted:    #64748b;
  --lms-shadow-sm:     0 1px 4px rgba(0,0,0,0.08);
  --lms-shadow:        0 4px 16px rgba(0,33,71,0.10);
  --lms-radius:        12px;
  --lms-transition:    all 0.25s ease;

  /* Material type colors */
  --color-pdf:      #dc3545;
  --color-video:    #0d6efd;
  --color-link:     #198754;
  --color-doc:      #002147;
  --color-quiz:     #6f42c1;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--lms-bg);
  color: var(--lms-text-dark);
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--lms-navy); text-decoration: none; }
a:hover { color: var(--lms-red); }

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.lms-login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f1a30 0%, var(--lms-sidebar-bg) 60%, #243258 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.lms-login-card {
  background: #fff;
  border-radius: var(--lms-radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  width: 100%;
  max-width: 420px;
  overflow: hidden;
}
.lms-login-header {
  background: var(--lms-sidebar-bg);
  padding: 36px 36px 28px;
  text-align: center;
}
.lms-login-logo {
  display: block;
  width: auto;
  height: auto;
  background: transparent;
  border-radius: 0;
  margin-bottom: 14px;
}
.lms-login-logo img {
  width: 68px;
  height: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.28));
}
.lms-login-header h1 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin: 0;
}
.lms-login-header p {
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  margin: 4px 0 0;
}
.lms-login-body {
  padding: 32px 36px 36px;
}
.lms-login-body .form-label {
  font-weight: 600;
  font-size: 13px;
  color: var(--lms-text-dark);
  margin-bottom: 6px;
}
.lms-login-body .form-control {
  border: 1.5px solid var(--lms-border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  transition: var(--lms-transition);
}
.lms-login-body .form-control:focus {
  border-color: var(--lms-navy);
  box-shadow: 0 0 0 3px rgba(0,33,71,0.12);
}
.btn-lms-login {
  background: var(--lms-red);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 24px;
  font-weight: 600;
  font-size: 15px;
  width: 100%;
  transition: var(--lms-transition);
  cursor: pointer;
}
.btn-lms-login:hover {
  background: var(--lms-red-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(200,16,46,0.3);
}
.lms-login-footer {
  text-align: center;
  padding-top: 16px;
  font-size: 12px;
  color: var(--lms-text-muted);
  border-top: 1px solid var(--lms-border);
  margin-top: 20px;
}

/* ============================================================
   LAYOUT: WRAPPER + SIDEBAR + CONTENT
   ============================================================ */
.lms-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ---- SIDEBAR ---- */
.lms-sidebar {
  width: var(--lms-sidebar-w);
  background: var(--lms-sidebar-bg);
  height: 100vh;
  position: fixed;
  top: 0; left: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: transform 0.28s cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
}

/* Brand area */
.sidebar-brand {
  padding: 26px 20px 22px;
  border-bottom: 1px solid #1e293b;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-logo {
  width: auto;
  height: auto;
  background: transparent;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
}
.brand-logo img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 1px 4px rgba(0,0,0,0.22));
}
.brand-initials {
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.brand-text { min-width: 0; }
.brand-name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-sub {
  font-size: 12px;
  color: #a0aec0;
  margin-top: 2px;
}

/* Nav */
.sidebar-nav {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 16px 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.12) transparent;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }

.nav-section {
  padding: 10px 12px 5px;
  font-size: 10px;
  font-weight: 700;
  color: rgba(255,255,255,0.28);
  text-transform: uppercase;
  letter-spacing: 2px;
}
.nav-item a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin: 2px 0;
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  border-left: none;
  transition: var(--lms-transition);
  text-decoration: none;
}
.nav-item a:hover {
  color: #fff;
  background: var(--lms-sidebar-hover);
}
.nav-item a.active {
  color: #fff;
  background: var(--lms-red);
}
.nav-item a .icon {
  width: 18px;
  text-align: center;
  font-size: 14px;
  flex-shrink: 0;
}

/* Sidebar user area */
.sidebar-user {
  padding: 14px 18px;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.user-info { flex: 1; min-width: 0; }
.user-name {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-role {
  font-size: 11px;
  color: #a0aec0;
}
.logout-btn {
  color: rgba(255,255,255,0.4);
  font-size: 16px;
  transition: var(--lms-transition);
  flex-shrink: 0;
}
.logout-btn:hover { color: var(--lms-red); }

/* Avatar */
.lms-avatar-initials {
  border-radius: 50%;
  background: var(--lms-red);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1;
}
.lms-avatar-img { flex-shrink: 0; }

/* Overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 999;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.show { display: block; }

/* ---- CONTENT AREA ---- */
.lms-content {
  margin-left: var(--lms-sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: margin-left 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* Topbar */
.lms-topbar {
  height: var(--lms-topbar-h);
  background: var(--lms-white);
  border-bottom: 1px solid var(--lms-border);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 28px 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.sidebar-toggle {
  background: none;
  border: none;
  width: 38px; height: 38px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lms-text-muted);
  font-size: 16px;
  cursor: pointer;
  transition: var(--lms-transition);
  flex-shrink: 0;
}
.sidebar-toggle:hover {
  background: var(--lms-bg);
  color: var(--lms-navy);
}
.topbar-title { flex: 1; min-width: 0; }
.page-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--lms-text-dark);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.topbar-icon-btn {
  background: none;
  border: none;
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lms-text-muted);
  font-size: 15px;
  cursor: pointer;
  transition: var(--lms-transition);
}
.topbar-icon-btn:hover {
  background: var(--lms-bg);
  color: var(--lms-navy);
}
.user-dropdown-btn {
  background: none;
  border: none;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  transition: var(--lms-transition);
  color: var(--lms-text-dark);
  font-size: 13px;
  font-weight: 500;
}
.user-dropdown-btn:hover,
.user-dropdown-btn:focus {
  background: var(--lms-bg);
}
.user-dropdown-btn::after { display: none; }
.user-dropdown-btn .fa-chevron-down { font-size: 10px; opacity: 0.5; }

/* Main body */
.lms-main {
  flex: 1;
  padding: 28px 32px 20px;
  min-height: 0;
}
.lms-footer {
  padding: 16px 28px;
  text-align: center;
  font-size: 12px;
  color: var(--lms-text-muted);
  border-top: 1px solid var(--lms-border);
  background: var(--lms-white);
}

/* ============================================================
   FLASH / ALERTS
   ============================================================ */
.lms-flash {
  border-radius: var(--lms-radius);
  font-size: 14px;
  font-weight: 500;
}

/* ============================================================
   STAT CARDS (Dashboard)
   ============================================================ */
.lms-stat-card {
  background: var(--lms-white);
  border-radius: var(--lms-radius);
  padding: 22px 22px;
  box-shadow: var(--lms-shadow-sm);
  border: 1px solid var(--lms-border);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: var(--lms-transition);
  height: 100%;
}
.lms-stat-card:hover {
  box-shadow: var(--lms-shadow);
  transform: translateY(-2px);
}
.stat-icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}
.stat-icon.navy    { background: #e2e8f0;               color: var(--lms-sidebar-bg); }
.stat-icon.red     { background: rgba(200,16,46,0.10);  color: var(--lms-red); }
.stat-icon.green   { background: rgba(25,135,84,0.10);  color: #198754; }
.stat-icon.blue    { background: rgba(13,110,253,0.10); color: #0d6efd; }
.stat-icon.purple  { background: rgba(111,66,193,0.10); color: #6f42c1; }
.stat-icon.orange  { background: rgba(253,126,20,0.10); color: #fd7e14; }
.stat-info { min-width: 0; }
.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--lms-navy);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 13px;
  color: var(--lms-text-muted);
  font-weight: 500;
}

/* ============================================================
   CARD PANELS
   ============================================================ */
.lms-card {
  background: var(--lms-white);
  border-radius: var(--lms-radius);
  box-shadow: var(--lms-shadow-sm);
  border: 1px solid var(--lms-border);
  overflow: hidden;
}
.lms-card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--lms-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.lms-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--lms-navy);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.lms-card-body {
  padding: 22px;
}

/* ============================================================
   TABLES
   ============================================================ */
.lms-table-wrap { overflow-x: auto; }
.lms-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.lms-table thead th {
  background: #f8fafc;
  color: var(--lms-text-muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 12px 16px;
  border-bottom: 2px solid var(--lms-border);
  white-space: nowrap;
}
.lms-table tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--lms-border);
  color: var(--lms-text-dark);
  vertical-align: middle;
}
.lms-table tbody tr:last-child td { border-bottom: none; }
.lms-table tbody tr:hover { background: #f8fafc; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-lms-primary {
  background: var(--lms-red);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--lms-transition);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
}
.btn-lms-primary:hover {
  background: var(--lms-red-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(192,57,43,0.30);
}
.btn-lms-danger {
  background: var(--lms-red);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--lms-transition);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
}
.btn-lms-danger:hover {
  background: var(--lms-red-dark);
  color: #fff;
  transform: translateY(-1px);
}
.btn-lms-outline {
  background: transparent;
  color: var(--lms-navy);
  border: 1.5px solid var(--lms-navy);
  border-radius: 8px;
  padding: 8px 17px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--lms-transition);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
}
.btn-lms-outline:hover {
  background: var(--lms-navy);
  color: #fff;
}
.btn-lms-sm {
  padding: 5px 12px;
  font-size: 12px;
  border-radius: 6px;
}
.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: var(--lms-transition);
  font-size: 14px;
  line-height: 1;
}
.btn-icon.edit   { color: var(--lms-navy); }
.btn-icon.delete { color: var(--lms-red); }
.btn-icon:hover  { background: var(--lms-bg); }

/* ============================================================
   FORMS
   ============================================================ */
.lms-form .form-label {
  font-weight: 600;
  font-size: 13px;
  color: var(--lms-text-dark);
  margin-bottom: 6px;
}
.lms-form .form-control,
.lms-form .form-select {
  border: 1.5px solid var(--lms-border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  transition: var(--lms-transition);
  color: var(--lms-text-dark);
}
.lms-form .form-control:focus,
.lms-form .form-select:focus {
  border-color: var(--lms-navy);
  box-shadow: 0 0 0 3px rgba(0,33,71,0.10);
  outline: none;
}
.lms-form textarea.form-control { resize: vertical; min-height: 100px; }
.lms-form .form-check-input:checked { background-color: var(--lms-navy); border-color: var(--lms-navy); }
.lms-form .form-text { font-size: 12px; color: var(--lms-text-muted); margin-top: 4px; }

/* Page header for forms/detail pages */
.lms-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}
.lms-breadcrumb {
  font-size: 12px;
  color: var(--lms-text-muted);
  margin-bottom: 4px;
}
.lms-breadcrumb a { color: var(--lms-text-muted); }
.lms-breadcrumb a:hover { color: var(--lms-navy); }
.lms-page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--lms-navy);
  margin: 0;
}

/* ============================================================
   COURSE CARDS (Student + Instructor views)
   ============================================================ */
.lms-course-card {
  background: var(--lms-white);
  border-radius: var(--lms-radius);
  box-shadow: var(--lms-shadow-sm);
  border: 1px solid var(--lms-border);
  overflow: hidden;
  transition: var(--lms-transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.lms-course-card:hover {
  box-shadow: var(--lms-shadow);
  transform: translateY(-3px);
}
.course-card-thumb {
  background: linear-gradient(135deg, var(--lms-navy) 0%, var(--lms-navy-light) 100%);
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.course-card-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.course-card-thumb .course-icon-placeholder {
  font-size: 44px;
  color: rgba(255,255,255,0.3);
}
.course-card-thumb .course-cat-badge {
  position: absolute;
  top: 10px; right: 10px;
  background: rgba(0,0,0,0.45);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}
.course-card-body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.course-code {
  font-size: 11px;
  font-weight: 700;
  color: var(--lms-red);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.course-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--lms-navy);
  margin-bottom: 8px;
  line-height: 1.3;
}
.course-card-desc {
  font-size: 12.5px;
  color: var(--lms-text-muted);
  flex: 1;
  margin-bottom: 14px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}
.course-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--lms-text-muted);
  border-top: 1px solid var(--lms-border);
  padding-top: 12px;
  flex-wrap: wrap;
}
.course-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}
.course-card-actions {
  margin-top: 14px;
}
.course-card-actions a {
  display: block;
  text-align: center;
  background: var(--lms-red);
  color: #fff;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--lms-transition);
}
.course-card-actions a:hover {
  opacity: 0.9;
  color: #fff;
}

/* Progress bar */
.lms-progress-wrap { margin-top: 10px; }
.lms-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--lms-text-muted);
  margin-bottom: 5px;
}
.lms-progress {
  height: 6px;
  border-radius: 99px;
  background: var(--lms-border);
  overflow: hidden;
}
.lms-progress-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--lms-red);
  transition: width 0.5s ease;
}
.lms-progress-bar.complete {
  background: linear-gradient(90deg, #198754, #20c997);
}

/* ============================================================
   MODULE ACCORDION (Student course view)
   ============================================================ */
.lms-module-accordion { display: flex; flex-direction: column; gap: 10px; }
.lms-module-item {
  background: var(--lms-white);
  border-radius: var(--lms-radius);
  border: 1px solid var(--lms-border);
  overflow: hidden;
  box-shadow: var(--lms-shadow-sm);
}
.lms-module-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  background: var(--lms-white);
  transition: background 0.2s;
}
.lms-module-header:hover { background: #f8fafc; }
.lms-module-header.open { background: #f0f4f8; }
.module-header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.module-num {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--lms-navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.module-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--lms-navy);
}
.module-count {
  font-size: 12px;
  color: var(--lms-text-muted);
  margin-top: 2px;
}
.module-chevron {
  color: var(--lms-text-muted);
  transition: transform 0.25s;
  font-size: 13px;
}
.lms-module-header.open .module-chevron { transform: rotate(180deg); }
.lms-module-materials {
  border-top: 1px solid var(--lms-border);
  display: none;
}
.lms-module-materials.open { display: block; }
.material-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--lms-border);
  transition: background 0.18s;
  text-decoration: none;
  color: var(--lms-text-dark);
}
.material-item:last-child { border-bottom: none; }
.material-item:hover { background: #f8fafc; }
.material-item-icon {
  width: 34px; height: 34px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}
.material-item-icon.pdf      { background: rgba(220,53,69,0.10); color: var(--color-pdf); }
.material-item-icon.video    { background: rgba(13,110,253,0.10); color: var(--color-video); }
.material-item-icon.link     { background: rgba(25,135,84,0.10);  color: var(--color-link); }
.material-item-icon.document { background: rgba(0,33,71,0.08);   color: var(--color-doc); }
.material-item-icon.quiz     { background: rgba(111,66,193,0.10); color: var(--color-quiz); }
.material-item-info { flex: 1; min-width: 0; }
.material-item-title {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--lms-text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.material-item-meta {
  font-size: 11.5px;
  color: var(--lms-text-muted);
  margin-top: 2px;
}
.material-completed-check {
  color: #198754;
  font-size: 16px;
  flex-shrink: 0;
}

/* ============================================================
   MATERIAL VIEW (Student)
   ============================================================ */
.lms-material-viewer {
  background: var(--lms-white);
  border-radius: var(--lms-radius);
  border: 1px solid var(--lms-border);
  overflow: hidden;
}
.material-viewer-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--lms-border);
  background: #f8fafc;
}
.material-viewer-content {
  padding: 24px;
  min-height: 300px;
}
/* PDF / document embed – mobile-safe wrapper approach */
.lms-pdf-wrapper {
  width: 100%;
  height: 78vh;
  overflow: auto;
  -webkit-overflow-scrolling: touch; /* iOS momentum scroll */
  border-radius: 6px;
  border: 1px solid var(--lms-border);
  background: #f0f0f0;
  position: relative;
}
.lms-pdf-embed {
  width: 100%;
  height: 100%;
  min-height: 600px;
  border: none;
  display: block;
  background: #f0f0f0;
}
@media (max-width: 768px) {
  .lms-pdf-wrapper {
    height: 65vh;
    min-height: 340px;
  }
  .lms-pdf-embed { min-height: 340px; }
}
.lms-pdf-open-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: var(--lms-navy);
  color: #fff;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background .18s;
}
.lms-pdf-open-btn:hover { background: #0d1f3c; color: #fff; }
.lms-video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #000;
}
.lms-video-embed iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}
.lms-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--lms-navy);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--lms-transition);
  text-decoration: none;
}
.lms-download-btn:hover {
  background: var(--lms-red);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,33,71,0.2);
}
.material-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--lms-border);
  margin-top: 24px;
  flex-wrap: wrap;
}

/* ============================================================
   MATERIAL TYPE ICONS & BADGES
   ============================================================ */
.lms-icon-pdf   { color: var(--color-pdf); }
.lms-icon-video { color: var(--color-video); }
.lms-icon-link  { color: var(--color-link); }
.lms-icon-doc   { color: var(--color-doc); }
.lms-icon-quiz  { color: var(--color-quiz); }

.lms-badge-pdf   { background: var(--color-pdf);   color: #fff; font-size: 11px; }
.lms-badge-video { background: var(--color-video);  color: #fff; font-size: 11px; }
.lms-badge-link  { background: var(--color-link);   color: #fff; font-size: 11px; }
.lms-badge-doc   { background: var(--color-doc);    color: #fff; font-size: 11px; }
.lms-badge-quiz  { background: var(--color-quiz);   color: #fff; font-size: 11px; }

.lms-role-admin      { background: var(--lms-red);    color: #fff; font-size: 11px; }
.lms-role-instructor { background: var(--lms-navy);   color: #fff; font-size: 11px; }
.lms-role-student    { background: #198754;            color: #fff; font-size: 11px; }

/* ============================================================
   ANNOUNCEMENTS
   ============================================================ */
.announcement-card {
  background: var(--lms-white);
  border-radius: var(--lms-radius);
  border: 1px solid var(--lms-border);
  padding: 18px 20px;
  margin-bottom: 12px;
  transition: var(--lms-transition);
}
.announcement-card:hover { box-shadow: var(--lms-shadow-sm); }
.announcement-card.global {
  border-left: 4px solid var(--lms-navy);
}
.announcement-card.course-specific {
  border-left: 4px solid var(--lms-red);
}
.announcement-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--lms-navy);
  margin-bottom: 6px;
}
.announcement-meta {
  font-size: 12px;
  color: var(--lms-text-muted);
  margin-bottom: 10px;
}
.announcement-body {
  font-size: 13.5px;
  color: var(--lms-text-dark);
  line-height: 1.7;
}

/* ============================================================
   STUDENT PROGRESS TABLE
   ============================================================ */
.progress-sm {
  height: 7px;
  border-radius: 10px;
  background: var(--lms-border);
  overflow: hidden;
  min-width: 100px;
}
.progress-sm .progress-bar {
  background: var(--lms-red);
}
.progress-sm .progress-bar.bg-success {
  background: linear-gradient(90deg, #198754, #20c997) !important;
}

/* ============================================================
   ADMIN COURSE CARD (list view)
   ============================================================ */
.admin-course-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--lms-border);
}
.admin-course-row:last-child { border-bottom: none; }
.course-thumb-sm {
  width: 48px; height: 48px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--lms-navy), var(--lms-navy-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: rgba(255,255,255,0.4);
  flex-shrink: 0;
  overflow: hidden;
}
.course-thumb-sm img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.lms-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--lms-text-muted);
}
.lms-empty i {
  font-size: 48px;
  opacity: 0.2;
  margin-bottom: 14px;
  display: block;
}
.lms-empty p {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 18px;
}

/* ============================================================
   STATUS BADGES
   ============================================================ */
.badge-active     { background: rgba(25,135,84,0.12);  color: #198754; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.badge-inactive   { background: rgba(100,116,139,0.12); color: #64748b; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.badge-completed  { background: rgba(13,110,253,0.12); color: #0d6efd; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.badge-suspended  { background: rgba(200,16,46,0.12);  color: var(--lms-red); font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }

/* ============================================================
   SEARCH BAR
   ============================================================ */
.lms-search {
  position: relative;
  max-width: 300px;
}
.lms-search input {
  border: 1.5px solid var(--lms-border);
  border-radius: 8px;
  padding: 8px 12px 8px 36px;
  font-size: 13px;
  font-family: inherit;
  width: 100%;
  transition: var(--lms-transition);
  background: #fff;
}
.lms-search input:focus {
  border-color: var(--lms-navy);
  box-shadow: 0 0 0 3px rgba(0,33,71,0.08);
  outline: none;
}
.lms-search .search-icon {
  position: absolute;
  left: 11px; top: 50%;
  transform: translateY(-50%);
  color: var(--lms-text-muted);
  font-size: 13px;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.lms-pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.lms-pagination a,
.lms-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--lms-text-dark);
  border: 1px solid var(--lms-border);
  background: #fff;
  transition: var(--lms-transition);
  text-decoration: none;
}
.lms-pagination a:hover { border-color: var(--lms-navy); color: var(--lms-navy); }
.lms-pagination span.current { background: var(--lms-navy); color: #fff; border-color: var(--lms-navy); }
.lms-pagination span.dots { border: none; background: none; cursor: default; }

/* ============================================================
   MODAL DELETE CONFIRM
   ============================================================ */
.lms-confirm-modal .modal-header { background: var(--lms-red); }
.lms-confirm-modal .modal-title  { color: #fff; font-weight: 700; }
.lms-confirm-modal .btn-close    { filter: invert(1); }

/* ============================================================
   RESPONSIVE / MOBILE
   ============================================================ */
@media (max-width: 991.98px) {
  .lms-sidebar {
    transform: translateX(-100%);
  }
  .lms-sidebar.open {
    transform: translateX(0);
  }
  .lms-content {
    margin-left: 0 !important;
  }
  .lms-main { padding: 18px 16px 10px; }
  .lms-topbar { padding: 0 16px 0 12px; }
}

@media (max-width: 575.98px) {
  .stat-value { font-size: 22px; }
  .lms-main  { padding: 14px 12px; }
  .page-title { font-size: 15px; }
}

/* Sidebar open on desktop – toggle class handled by JS */
@media (min-width: 992px) {
  .lms-sidebar.collapsed {
    transform: translateX(calc(-1 * var(--lms-sidebar-w)));
  }
  .lms-content.expanded {
    margin-left: 0;
  }
}

/* ============================================================
   EXAM STYLES
   ============================================================ */

/* Timer */
.exam-timer {
  display: inline-flex;
  align-items: center;
  background: var(--lms-navy);
  color: #fff;
  padding: 8px 18px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
  transition: background 0.3s;
}
.exam-timer.danger {
  background: var(--lms-red);
  animation: timerPulse 1s infinite;
}
@keyframes timerPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.7; }
}

/* Question card */
.exam-question {
  border: 1px solid var(--lms-border);
  border-radius: var(--lms-radius);
  background: var(--lms-card-bg);
  padding: 20px;
}

/* Option label – radio/checkbox options */
.option-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  border: 1.5px solid var(--lms-border);
  border-radius: 8px;
  margin-bottom: 8px;
  cursor: pointer;
  font-size: 13.5px;
  transition: background 0.15s, border-color 0.15s;
}
.option-label:hover {
  border-color: var(--lms-navy);
  background: #f0f3f8;
}
.option-label input[type="radio"],
.option-label input[type="checkbox"] {
  margin-top: 2px;
  flex-shrink: 0;
}
/* Post-submit colouring */
.option-label.correct {
  border-color: #198754;
  background: #d1e7dd;
  color: #0a3622;
}
.option-label.wrong {
  border-color: #dc3545;
  background: #f8d7da;
  color: #58151c;
}
.option-label.missed {
  border-color: #198754;
  background: #d1e7dd;
  opacity: 0.7;
}

/* ============================================================
   SCORE BANNER
   ============================================================ */
.score-banner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px 32px;
  border-radius: var(--lms-radius);
  color: #fff;
}
.score-banner.passed {
  background: linear-gradient(135deg, #198754 0%, #20c997 100%);
}
.score-banner.failed {
  background: linear-gradient(135deg, #dc3545 0%, #c8102e 100%);
}
.score-banner .score-icon {
  font-size: 52px;
  opacity: 0.9;
}
.score-banner .score-pct {
  font-size: 42px;
  font-weight: 800;
  line-height: 1;
}
.score-banner .score-verdict {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  opacity: 0.9;
  margin: 4px 0;
}
.score-banner .score-detail {
  font-size: 13px;
  opacity: 0.8;
}

/* ============================================================
   POE STYLES
   ============================================================ */

/* POE task card */
.poe-task-card {
  border-left: 4px solid var(--lms-navy);
  transition: box-shadow 0.2s;
}
.poe-task-card:hover {
  box-shadow: var(--lms-shadow);
}

/* Locked exam badge */
.locked-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(100,116,139,0.92);
  color: #fff;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
  font-weight: 600;
  pointer-events: none;
  z-index: 5;
}

/* POE status badges */
.poe-status-submitted {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: #cfe2ff;
  color: #084298;
}
.poe-status-reviewing {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: #fff3cd;
  color: #664d03;
}
.poe-status-approved {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: #d1e7dd;
  color: #0a3622;
}
.poe-status-rejected {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: #f8d7da;
  color: #58151c;
}

/* ─── Variable extensions (missing from original) ────────────────────── */
:root {
  --lms-border:      #e2e8f0;
  --lms-text-muted:  #64748b;
}

/* ─── btn-lms-danger ─────────────────────────────────────────────────── */
.btn-lms-danger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--lms-red);
  color: #fff !important;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: background .15s;
}
.btn-lms-danger:hover { background: var(--lms-red-dark); }

/* ─── btn-lms-sm ─────────────────────────────────────────────────────── */
.btn-lms-sm {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 12px;
  cursor: pointer;
  text-decoration: none !important;
  transition: all .15s;
}

/* ─── Forms inside LMS ───────────────────────────────────────────────── */
.lms-form .form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--lms-text-dark);
  margin-bottom: 5px;
}
.lms-form .form-control,
.lms-form .form-select {
  border: 1.5px solid var(--lms-border);
  border-radius: 8px;
  font-size: 13px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--lms-text-dark);
  transition: border-color .15s, box-shadow .15s;
}
.lms-form .form-control:focus,
.lms-form .form-select:focus {
  border-color: var(--lms-red);
  box-shadow: 0 0 0 3px rgba(192,57,43,.1);
  outline: none;
}
.lms-form .form-text {
  font-size: 11px;
  color: var(--lms-text-muted);
}

/* ─── Gradebook inline inputs ────────────────────────────────────────── */
.grade-input:focus {
  border-color: var(--lms-red) !important;
  background: #fff8f8 !important;
  box-shadow: 0 0 0 3px rgba(192,57,43,.08) !important;
}

/* ─── Attendance status buttons ──────────────────────────────────────── */
.att-btn { transition: all .15s !important; }
.att-btn:hover { opacity: .85; }

/* ─── Notification dropdown items ────────────────────────────────────── */
.notif-item:hover { background: #f8fafc !important; }

/* ─── Course card hover lift ──────────────────────────────────────────── */
.lms-course-card {
  transition: transform .2s, box-shadow .2s;
}
.lms-course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,.10);
}

/* ─── Grade course header ────────────────────────────────────────────── */
.grade-course-header {
  background: linear-gradient(135deg, var(--lms-sidebar-bg), #243258);
  border-radius: var(--lms-radius) var(--lms-radius) 0 0;
  padding: 20px 24px;
  color: #fff;
}

/* ─── Empty state ────────────────────────────────────────────────────── */
.lms-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--lms-text-muted);
}
.lms-empty i {
  font-size: 36px;
  opacity: .3;
  display: block;
  margin-bottom: 12px;
}
.lms-empty p {
  font-size: 14px;
  margin: 0 0 12px;
}

/* ─── Page header ────────────────────────────────────────────────────── */
.lms-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.lms-page-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--lms-text-dark);
  margin: 0;
}

/* ─── Responsive adjustments ─────────────────────────────────────────── */
@media (max-width: 768px) {
  .lms-sidebar {
    transform: translateX(-100%);
    transition: transform .25s ease;
    position: fixed;
    z-index: 1050;
  }
  .lms-sidebar.open { transform: translateX(0); }
  .lms-content { margin-left: 0 !important; }
  .lms-main { padding: 16px !important; }
  .lms-topbar { padding: 0 16px !important; }
}