/* =========================================================================
   E-learning — Kế Toán Diệu Tâm
   Navy / Gold / Cream, premium learning portal.
   Dùng design tokens từ styles.css: --gold, --gold-dark, --gold-soft,
   --dark, --cream, --card-border, --font-heading, --font-body.
   ========================================================================= */

.elearning-page {
  background: var(--cream, #faf8f4);
}

/* ---------- Shared building blocks ---------- */

.elearning-breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  color: #7a7466;
  margin-bottom: 26px;
}

.elearning-breadcrumbs a {
  color: #7a7466;
  text-decoration: none;
  transition: color 0.2s ease;
}

.elearning-breadcrumbs a:hover {
  color: var(--gold-dark, #b68d40);
}

.elearning-breadcrumbs i {
  font-size: 11px;
  color: #b9b2a2;
}

.elearning-breadcrumbs span {
  color: #4c4636;
  font-weight: 600;
}

.elearning-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 100px;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.35);
  color: var(--gold-dark, #b68d40);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.elearning-btn-gold,
.elearning-btn-outline,
.elearning-btn-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 28px;
  border-radius: 100px;
  font-family: var(--font-body, 'Be Vietnam Pro', sans-serif);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.elearning-btn-gold {
  background: linear-gradient(135deg, #d4af37 0%, #b68d40 100%);
  color: #241a05;
  box-shadow: 0 10px 24px rgba(182, 141, 64, 0.28);
}

.elearning-btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(182, 141, 64, 0.36);
}

.elearning-btn-gold:disabled {
  opacity: 0.65;
  cursor: wait;
  transform: none;
}

.elearning-btn-outline {
  background: #fff;
  border-color: #ded5c2;
  color: #4c4636;
}

.elearning-btn-outline:hover {
  border-color: var(--gold, #d4af37);
  color: var(--gold-dark, #b68d40);
  transform: translateY(-2px);
}

.elearning-btn-dark {
  background: var(--dark, #1a1d24);
  color: #f7f2e5;
}

.elearning-btn-dark:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(26, 29, 36, 0.3);
}

/* ---------- Hero (landing + list) ---------- */

/* Keyframes */
@keyframes heroBtnPulse {
  0%, 100% { box-shadow: 0 8px 22px rgba(182, 141, 64, 0.3); }
  50% { box-shadow: 0 8px 36px rgba(212, 175, 55, 0.55), 0 0 50px rgba(212, 175, 55, 0.15); }
}

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heroBgDrift {
  0% { transform: scale(1.02); }
  100% { transform: scale(1.06) translate(-0.8%, -0.4%); }
}

@keyframes heroShimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Hero container */
.elearning-hero {
  position: relative;
  overflow: hidden;
  background: #0c0e17;
  color: #f0ece0;
  padding: 96px 0 80px;
}

/* Background image */
.hero-bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  animation: heroBgDrift 40s ease-in-out infinite alternate;
}

/* Left overlay gradient — dark on left for text, transparent on right to show image */
.hero-bg-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right,
      rgba(10, 12, 22, 0.94) 0%,
      rgba(12, 14, 23, 0.88) 20%,
      rgba(12, 14, 23, 0.65) 40%,
      rgba(12, 14, 23, 0.3) 55%,
      transparent 70%),
    linear-gradient(to bottom,
      rgba(10, 12, 22, 0.5) 0%,
      transparent 25%,
      transparent 75%,
      rgba(10, 12, 22, 0.6) 100%);
}

/* Gold accent line at top */
.elearning-hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--gold, #d4af37) 0%,
    #f2d67e 30%,
    var(--gold, #d4af37) 50%,
    transparent 80%);
  z-index: 4;
}

.elearning-hero .container {
  position: relative;
  z-index: 3;
}

/* Text column — half width on desktop */
.elearning-hero .hero-text-col {
  max-width: 580px;
}

/* Staggered entrance */
.hero-text-col > * {
  opacity: 0;
  animation: heroFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.hero-text-col > :nth-child(1) { animation-delay: 0.1s; }
.hero-text-col > :nth-child(2) { animation-delay: 0.2s; }
.hero-text-col > :nth-child(3) { animation-delay: 0.35s; }
.hero-text-col > :nth-child(4) { animation-delay: 0.5s; }
.hero-text-col > :nth-child(5) { animation-delay: 0.65s; }
.hero-text-col > :nth-child(6) { animation-delay: 0.8s; }

/* Breadcrumbs */
.elearning-hero .elearning-breadcrumbs,
.elearning-hero .elearning-breadcrumbs a {
  color: rgba(240, 236, 224, 0.55);
}
.elearning-hero .elearning-breadcrumbs a:hover {
  color: #f2d67e;
}
.elearning-hero .elearning-breadcrumbs span {
  color: rgba(240, 236, 224, 0.85);
}

/* Eyebrow */
.hero-eyebrow-animate {
  position: relative;
  overflow: hidden;
  background: rgba(212, 175, 55, 0.1);
  border-color: rgba(212, 175, 55, 0.3);
}

/* Title */
.elearning-hero-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 46px;
  line-height: 1.18;
  font-weight: 800;
  margin: 22px 0 20px;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.elearning-hero-title .gold-accent {
  background: linear-gradient(120deg, #f7e69a 0%, #d4af37 40%, #c9982e 70%, #f2d67e 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: heroShimmer 6s linear infinite;
}

/* Lead text */
.elearning-hero-lead {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(240, 236, 224, 0.78);
  max-width: 520px;
  margin-bottom: 30px;
}

/* Actions */
.elearning-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

.hero-btn-glow {
  animation: heroBtnPulse 3s ease-in-out infinite;
}
.hero-btn-glow:hover {
  animation: none;
  box-shadow: 0 12px 40px rgba(212, 175, 55, 0.5), 0 0 60px rgba(212, 175, 55, 0.18);
}

.elearning-hero .elearning-btn-outline {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(240, 236, 224, 0.22);
  color: #f0ece0;
  backdrop-filter: blur(6px);
}
.elearning-hero .elearning-btn-outline:hover {
  border-color: var(--gold, #d4af37);
  color: #f2d67e;
  background: rgba(212, 175, 55, 0.08);
}

/* Trust items */
.elearning-hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.elearning-hero-trust-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(240, 236, 224, 0.7);
  font-weight: 500;
  transition: color 0.3s ease;
}
.elearning-hero-trust-item:hover { color: #f2d67e; }
.elearning-hero-trust-item i { color: var(--gold, #d4af37); font-size: 15px; }


/* ---------- Section scaffolding ---------- */

.elearning-section {
  padding: 96px 0;
}

.elearning-section.is-tight {
  padding: 72px 0;
}

.elearning-section-head {
  max-width: 640px;
  margin: 0 auto 52px;
  text-align: center;
}

.elearning-section-head h2 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 32px;
  font-weight: 800;
  color: #241f14;
  margin: 16px 0 14px;
}

.elearning-section-head p {
  font-size: 16px;
  line-height: 1.7;
  color: #6f6852;
}

.elearning-section-head.is-left {
  text-align: left;
  margin-left: 0;
}

/* ---------- Course cards ---------- */

.elearning-course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.elearning-course-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 18px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.elearning-course-card:hover {
  transform: translateY(-6px);
  border-color: rgba(212, 175, 55, 0.55);
  box-shadow: 0 24px 48px rgba(64, 52, 22, 0.14);
}

.elearning-card-thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  background: linear-gradient(140deg, #1d2230 0%, #2a3148 100%);
  overflow: hidden;
}

.elearning-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.elearning-course-card:hover .elearning-card-thumb img {
  transform: scale(1.05);
}

.elearning-card-thumb-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  color: rgba(212, 175, 55, 0.75);
  background:
    radial-gradient(360px 200px at 80% 0%, rgba(212, 175, 55, 0.22), transparent 60%),
    linear-gradient(140deg, #1d2230 0%, #2a3148 100%);
}

.elearning-card-type-badge {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12.5px;
  font-weight: 700;
}

.elearning-card-type-badge.is-free {
  background: #eaf6ec;
  color: #217a3c;
  border: 1px solid rgba(33, 122, 60, 0.25);
}

.elearning-card-type-badge.is-contact {
  background: #fdf3e0;
  color: #a06514;
  border: 1px solid rgba(160, 101, 20, 0.28);
}

.elearning-card-type-badge.is-inline {
  position: static;
}

.elearning-card-featured-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border-radius: 100px;
  background: linear-gradient(135deg, #d4af37, #b68d40);
  color: #241a05;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(20, 16, 4, 0.35);
}

.elearning-card-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 22px 20px;
  flex: 1;
}

.elearning-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.elearning-card-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--gold-soft, #fdf9ee);
  border: 1px solid rgba(212, 175, 55, 0.3);
  color: #8a6d1f;
  font-size: 12.5px;
  font-weight: 600;
}

.elearning-card-tag.is-level {
  background: #f1f1f6;
  border-color: #dcdce6;
  color: #4c5265;
}

.elearning-card-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 18.5px;
  line-height: 1.42;
  font-weight: 700;
  margin: 0;
}

.elearning-card-title a {
  color: #241f14;
  text-decoration: none;
  transition: color 0.2s ease;
}

.elearning-card-title a:hover {
  color: var(--gold-dark, #b68d40);
}

.elearning-card-summary {
  font-size: 14.5px;
  line-height: 1.65;
  color: #6f6852;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.elearning-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: auto;
  padding-top: 6px;
}

.elearning-card-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: #857d68;
}

.elearning-card-meta-item i {
  color: var(--gold-dark, #b68d40);
}

.elearning-card-footer {
  border-top: 1px solid var(--card-border, #efece6);
  padding-top: 14px;
  margin-top: 4px;
}

.elearning-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--gold-dark, #b68d40);
  text-decoration: none;
}

.elearning-card-cta i {
  transition: transform 0.2s ease;
  font-size: 13px;
}

.elearning-card-cta:hover i {
  transform: translateX(4px);
}

/* Skeleton */

.elearning-course-card.is-skeleton .elearning-card-thumb {
  background: linear-gradient(100deg, #ece7db 30%, #f7f3ea 50%, #ece7db 70%);
  background-size: 200% 100%;
  animation: elearning-shimmer 1.4s infinite;
}

.skeleton-line {
  display: block;
  height: 13px;
  border-radius: 7px;
  background: linear-gradient(100deg, #ece7db 30%, #f7f3ea 50%, #ece7db 70%);
  background-size: 200% 100%;
  animation: elearning-shimmer 1.4s infinite;
  margin-bottom: 4px;
}

.skeleton-line.w-40 { width: 40%; }
.skeleton-line.w-50 { width: 50%; }
.skeleton-line.w-70 { width: 70%; }
.skeleton-line.w-90 { width: 90%; }

@keyframes elearning-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---------- Empty / error states ---------- */

.elearning-empty-state {
  grid-column: 1 / -1;
  text-align: center;
  background: #fff;
  border: 1px dashed #ded5c2;
  border-radius: 18px;
  padding: 64px 30px;
}

.elearning-empty-state.is-compact {
  padding: 44px 24px;
}

.elearning-empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border-radius: 20px;
  background: var(--gold-soft, #fdf9ee);
  border: 1px solid rgba(212, 175, 55, 0.35);
  color: var(--gold-dark, #b68d40);
  font-size: 26px;
  margin-bottom: 18px;
}

.elearning-empty-state h3 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 20px;
  color: #241f14;
  margin: 0 0 10px;
}

.elearning-empty-state p {
  font-size: 15px;
  color: #6f6852;
  max-width: 420px;
  margin: 0 auto 20px;
  line-height: 1.65;
}

.elearning-empty-state.is-error .elearning-empty-icon {
  background: #fdf0ee;
  border-color: rgba(178, 58, 43, 0.3);
  color: #b23a2b;
}

/* ---------- Landing: benefits + personas ---------- */

.elearning-benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.elearning-benefit-card {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 18px;
  padding: 30px 26px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.elearning-benefit-card:hover {
  transform: translateY(-5px);
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: 0 20px 40px rgba(64, 52, 22, 0.12);
}

.elearning-benefit-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.18), rgba(182, 141, 64, 0.1));
  border: 1px solid rgba(212, 175, 55, 0.35);
  color: var(--gold-dark, #b68d40);
  font-size: 22px;
  margin-bottom: 18px;
}

.elearning-benefit-card h3 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 17.5px;
  color: #241f14;
  margin: 0 0 10px;
}

.elearning-benefit-card p {
  font-size: 14.5px;
  line-height: 1.68;
  color: #6f6852;
  margin: 0;
}

.elearning-persona-section {
  background:
    radial-gradient(720px 380px at 100% 0%, rgba(212, 175, 55, 0.14), transparent 60%),
    linear-gradient(150deg, #161a26 0%, #222840 100%);
  color: #f5f1e6;
}

.elearning-persona-section .elearning-section-head h2 {
  color: #ffffff;
}

.elearning-persona-section .elearning-section-head p {
  color: rgba(245, 241, 230, 0.75);
}

.elearning-persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
}

.elearning-persona-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.28);
  border-radius: 16px;
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.25s ease, background 0.25s ease;
}

.elearning-persona-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.08);
}

.elearning-persona-card i {
  font-size: 24px;
  color: var(--gold, #d4af37);
}

.elearning-persona-card strong {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 16px;
  color: #fff;
}

.elearning-persona-card p {
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(245, 241, 230, 0.72);
  margin: 0;
}

/* ---------- Landing CTA band ---------- */

.elearning-cta-band {
  background: linear-gradient(135deg, #d4af37 0%, #b68d40 100%);
  border-radius: 24px;
  padding: 54px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  box-shadow: 0 26px 54px rgba(148, 113, 40, 0.35);
}

.elearning-cta-band h2 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 28px;
  color: #241a05;
  margin: 0 0 10px;
}

.elearning-cta-band p {
  font-size: 15.5px;
  color: rgba(36, 26, 5, 0.82);
  margin: 0;
  line-height: 1.6;
}

.elearning-cta-band-actions {
  display: flex;
  gap: 14px;
  flex: none;
  flex-wrap: wrap;
}

/* ---------- Catalog page ---------- */

.elearning-catalog-hero {
  padding: 76px 0 60px;
}

.elearning-filter-bar {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 18px;
  padding: 18px 20px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 14px;
  box-shadow: 0 18px 40px rgba(64, 52, 22, 0.08);
  margin-top: -46px;
  position: relative;
  z-index: 2;
}

.elearning-filter-field {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid #e5decd;
  border-radius: 12px;
  background: #fcfaf5;
  padding: 0 14px;
  height: 48px;
}

.elearning-filter-field:focus-within {
  border-color: var(--gold, #d4af37);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.14);
}

.elearning-filter-field i {
  color: #a89a76;
  font-size: 14px;
  flex: none;
}

.elearning-filter-field input,
.elearning-filter-field select {
  width: 100%;
  border: 0;
  background: transparent;
  font-family: var(--font-body, 'Be Vietnam Pro', sans-serif);
  font-size: 14.5px;
  color: #38321f;
  outline: none;
  height: 100%;
  cursor: pointer;
}

.elearning-filter-field input {
  cursor: text;
}

.elearning-catalog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 34px 0 22px;
}

.elearning-catalog-toolbar h2 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 22px;
  color: #241f14;
  margin: 0;
}

#catalogResultCount {
  font-size: 14px;
  color: #857d68;
}

/* ---------- Course detail ---------- */

.course-detail-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(820px 400px at 92% -10%, rgba(212, 175, 55, 0.18), transparent 60%),
    linear-gradient(150deg, #161a26 0%, #1f2534 55%, #232941 100%);
  color: #f5f1e6;
  padding: 78px 0 70px;
}

.course-detail-hero .container {
  position: relative;
  z-index: 1;
}

.course-detail-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 52px;
  align-items: start;
}

.course-detail-hero .elearning-breadcrumbs,
.course-detail-hero .elearning-breadcrumbs a {
  color: rgba(245, 241, 230, 0.7);
}

.course-detail-hero .elearning-breadcrumbs span {
  color: #f5f1e6;
}

.course-detail-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.course-detail-hero h1 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 38px;
  line-height: 1.22;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 14px;
}

.course-detail-subtitle {
  font-size: 16.5px;
  line-height: 1.7;
  color: rgba(245, 241, 230, 0.85);
  max-width: 620px;
  margin-bottom: 22px;
}

.course-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin-bottom: 8px;
}

.course-hero-stat {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14.5px;
  color: rgba(245, 241, 230, 0.85);
}

.course-hero-stat i {
  color: var(--gold, #d4af37);
}

.course-detail-action-card {
  background: #ffffff;
  border-radius: 20px;
  border: 1px solid rgba(212, 175, 55, 0.4);
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(10, 12, 20, 0.4);
  color: #38321f;
}

.course-detail-action-thumb {
  aspect-ratio: 16 / 9;
  position: relative;
  background: linear-gradient(140deg, #1d2230 0%, #2a3148 100%);
}

.course-detail-action-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-detail-action-body {
  padding: 24px;
  display: grid;
  gap: 14px;
}

.course-detail-cta-stack {
  display: grid;
  gap: 12px;
}

.course-detail-cta-stack .elearning-btn-gold,
.course-detail-cta-stack .elearning-btn-outline {
  width: 100%;
}

.course-detail-note {
  font-size: 13.5px;
  line-height: 1.6;
  color: #857d68;
  text-align: center;
  margin: 0;
}

.course-detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 44px;
  align-items: start;
}

.course-detail-panel {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 18px;
  padding: 34px 34px 30px;
  margin-bottom: 30px;
}

.course-detail-panel > h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 22px;
  color: #241f14;
  margin: 0 0 20px;
}

.course-detail-panel > h2 i {
  color: var(--gold-dark, #b68d40);
  font-size: 19px;
}

.course-detail-description {
  font-size: 15.5px;
  line-height: 1.8;
  color: #4c4636;
}

.course-detail-description p {
  margin: 0 0 16px;
}

.course-detail-description p:last-child {
  margin-bottom: 0;
}

/* Curriculum */

.elearning-curriculum-section {
  border: 1px solid var(--card-border, #efece6);
  border-radius: 14px;
  margin-bottom: 14px;
  background: #fcfaf5;
  overflow: hidden;
}

.elearning-curriculum-section summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  user-select: none;
}

.elearning-curriculum-section summary::-webkit-details-marker {
  display: none;
}

.curriculum-section-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 700;
  font-size: 15.5px;
  color: #241f14;
  flex: 1;
}

.curriculum-section-count {
  font-size: 13px;
  color: #857d68;
  flex: none;
}

.curriculum-section-chevron {
  color: #a89a76;
  font-size: 13px;
  transition: transform 0.25s ease;
  flex: none;
}

.elearning-curriculum-section[open] .curriculum-section-chevron {
  transform: rotate(180deg);
}

.curriculum-section-summary {
  margin: 0;
  padding: 0 20px 12px;
  font-size: 14px;
  color: #6f6852;
}

.elearning-lesson-list {
  display: grid;
  border-top: 1px solid var(--card-border, #efece6);
  background: #fff;
}

.elearning-lesson-list.is-standalone {
  border: 1px solid var(--card-border, #efece6);
  border-radius: 14px;
  overflow: hidden;
}

.elearning-lesson-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  text-decoration: none;
  border-bottom: 1px solid #f4f0e6;
  transition: background 0.2s ease;
}

.elearning-lesson-row:last-child {
  border-bottom: 0;
}

.elearning-lesson-row:hover {
  background: var(--gold-soft, #fdf9ee);
}

.lesson-row-state {
  font-size: 16px;
  color: var(--gold-dark, #b68d40);
  flex: none;
  width: 20px;
  text-align: center;
}

.lesson-row-state.is-locked {
  color: #b9b2a2;
  font-size: 14px;
}

.lesson-row-state.is-done {
  color: #217a3c;
}

.lesson-row-state.is-current {
  color: var(--gold-dark, #b68d40);
}

.lesson-row-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.lesson-row-title {
  font-size: 14.5px;
  font-weight: 600;
  color: #38321f;
  line-height: 1.45;
}

.elearning-lesson-row.is-locked .lesson-row-title {
  color: #8d8571;
}

.lesson-row-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.lesson-row-badge {
  display: inline-flex;
  align-items: center;
  padding: 2.5px 10px;
  border-radius: 100px;
  font-size: 11.5px;
  font-weight: 700;
  background: #eaf6ec;
  color: #217a3c;
  border: 1px solid rgba(33, 122, 60, 0.22);
}

.lesson-row-badge.is-done {
  background: #eef3fb;
  color: #2b5aa6;
  border-color: rgba(43, 90, 166, 0.22);
}

.lesson-row-badge.is-staff {
  background: #f4effc;
  color: #6a41b8;
  border-color: rgba(106, 65, 184, 0.25);
}

.lesson-row-badge.is-activity {
  gap: 5px;
  background: #fbf3e3;
  color: #9a6a12;
  border-color: rgba(154, 106, 18, 0.28);
}

.lesson-sidebar-row-activity {
  margin-right: 6px;
  color: #b8860b;
  font-size: 0.85em;
}

.lesson-row-duration {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  color: #857d68;
  flex: none;
}

/* ---------- Lesson viewer ---------- */

.lesson-viewer-topbar {
  background: var(--dark, #1a1d24);
  color: #f5f1e6;
  padding: 18px 0;
}

.lesson-viewer-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.lesson-viewer-topbar .elearning-breadcrumbs {
  margin: 0;
  color: rgba(245, 241, 230, 0.7);
}

.lesson-viewer-topbar .elearning-breadcrumbs a {
  color: rgba(245, 241, 230, 0.7);
}

.lesson-viewer-topbar .elearning-breadcrumbs span {
  color: #f5f1e6;
}

.lesson-progress-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.lesson-progress-track {
  width: 140px;
  height: 8px;
  border-radius: 100px;
  background: rgba(245, 241, 230, 0.18);
  overflow: hidden;
}

#lessonProgressBarFill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 100px;
  background: linear-gradient(90deg, #d4af37, #f2d67e);
  transition: width 0.5s ease;
}

#lessonProgressPercent {
  font-size: 13px;
  font-weight: 700;
  color: #f2d67e;
}

.lesson-viewer-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 36px;
  align-items: start;
  padding: 44px 0 80px;
}

.lesson-sidebar {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 16px;
  overflow: hidden;
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 130px);
  display: flex;
  flex-direction: column;
}

.lesson-sidebar-head {
  padding: 18px 20px;
  border-bottom: 1px solid var(--card-border, #efece6);
  background: var(--gold-soft, #fdf9ee);
}

.lesson-sidebar-head span {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #a08424;
  margin-bottom: 5px;
}

.lesson-sidebar-head strong {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 15px;
  color: #241f14;
  line-height: 1.4;
}

.lesson-sidebar-body {
  overflow-y: auto;
  padding: 8px 0;
}

.lesson-sidebar-section summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  cursor: pointer;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 13.5px;
  font-weight: 700;
  color: #4c4636;
  user-select: none;
}

.lesson-sidebar-section summary::-webkit-details-marker {
  display: none;
}

.lesson-sidebar-section summary i {
  font-size: 11px;
  color: #a89a76;
  transition: transform 0.25s ease;
}

.lesson-sidebar-section[open] summary i {
  transform: rotate(180deg);
}

.lesson-sidebar-row {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 20px 10px 26px;
  text-decoration: none;
  transition: background 0.2s ease;
}

.lesson-sidebar-row:hover {
  background: var(--gold-soft, #fdf9ee);
}

.lesson-sidebar-row.is-current {
  background: rgba(212, 175, 55, 0.14);
  border-right: 3px solid var(--gold, #d4af37);
}

.lesson-sidebar-row-title {
  flex: 1;
  min-width: 0;
  font-size: 13.5px;
  line-height: 1.45;
  color: #4c4636;
  font-weight: 500;
}

.lesson-sidebar-row.is-current .lesson-sidebar-row-title {
  color: #241f14;
  font-weight: 700;
}

.lesson-sidebar-row.is-locked .lesson-sidebar-row-title {
  color: #9a927d;
}

.lesson-sidebar-row-duration {
  font-size: 11.5px;
  color: #a89a76;
  flex: none;
}

.lesson-sidebar-standalone {
  border-top: 1px solid #f4f0e6;
}

.lesson-main {
  min-width: 0;
}

.lesson-main-head {
  margin-bottom: 26px;
}

.lesson-position-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: #a08424;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.lesson-main-head h1 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 30px;
  line-height: 1.3;
  color: #241f14;
  margin: 0 0 12px;
}

.lesson-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 14px;
  color: #857d68;
}

.lesson-meta-row i {
  color: var(--gold-dark, #b68d40);
  margin-right: 7px;
}

.lesson-video-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  overflow: hidden;
  background: #10131c;
  margin-bottom: 30px;
  box-shadow: 0 24px 48px rgba(16, 19, 28, 0.28);
}

.lesson-video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.lesson-content-card {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 18px;
  padding: 40px 44px;
  margin-bottom: 26px;
}

.lesson-content-body {
  font-size: 16.5px;
  line-height: 1.85;
  color: #38321f;
  max-width: 760px;
}

.lesson-content-body h2,
.lesson-content-body h3,
.lesson-content-body h4,
.lesson-content-body h5 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  color: #241f14;
  line-height: 1.35;
  margin: 34px 0 14px;
}

.lesson-content-body h2 { font-size: 24px; }
.lesson-content-body h3 { font-size: 20px; }
.lesson-content-body h4,
.lesson-content-body h5 { font-size: 17px; }

.lesson-content-body h2:first-child,
.lesson-content-body h3:first-child,
.lesson-content-body p:first-child {
  margin-top: 0;
}

.lesson-content-body p {
  margin: 0 0 18px;
}

.lesson-content-body ul,
.lesson-content-body ol {
  margin: 0 0 18px;
  padding-left: 26px;
}

.lesson-content-body ul {
  list-style: disc;
}

.lesson-content-body ol {
  list-style: decimal;
}

.lesson-content-body li {
  margin-bottom: 9px;
}

.lesson-content-body a {
  color: var(--gold-dark, #b68d40);
  font-weight: 600;
}

.lesson-content-body blockquote {
  margin: 22px 0;
  padding: 18px 24px;
  border-left: 4px solid var(--gold, #d4af37);
  background: var(--gold-soft, #fdf9ee);
  border-radius: 0 12px 12px 0;
  color: #5c5340;
}

.lesson-content-body blockquote p {
  margin: 0;
}

.lesson-content-body code {
  background: #f4f0e6;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 14.5px;
}

.lesson-content-body pre {
  background: #1d2230;
  color: #e8e4d8;
  border-radius: 12px;
  padding: 20px 24px;
  overflow-x: auto;
  margin: 0 0 18px;
}

.lesson-content-body pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

.lesson-content-body img {
  max-width: 100%;
  border-radius: 12px;
  margin: 10px 0;
}

.lesson-content-body hr {
  border: 0;
  border-top: 1px solid var(--card-border, #efece6);
  margin: 30px 0;
}

.lesson-content-empty {
  color: #857d68;
  font-style: italic;
}

/* Assets */

.lesson-assets-card {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 16px;
  padding: 24px 26px;
  margin-bottom: 26px;
}

.lesson-assets-card h2 {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 18px;
  color: #241f14;
  margin: 0 0 16px;
}

.lesson-assets-card h2 i {
  color: var(--gold-dark, #b68d40);
}

.lesson-asset-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 12px;
  text-decoration: none;
  margin-bottom: 10px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.lesson-asset-row:last-child {
  margin-bottom: 0;
}

.lesson-asset-row:hover {
  border-color: rgba(212, 175, 55, 0.55);
  background: var(--gold-soft, #fdf9ee);
}

.lesson-asset-row > i:first-child {
  font-size: 18px;
  color: var(--gold-dark, #b68d40);
  flex: none;
}

.lesson-asset-title {
  flex: 1;
  font-size: 14.5px;
  font-weight: 600;
  color: #38321f;
  min-width: 0;
}

.lesson-asset-size {
  font-size: 12.5px;
  color: #857d68;
  flex: none;
}

.lesson-asset-row > i:last-child {
  font-size: 13px;
  color: #a89a76;
  flex: none;
}

.lesson-asset-title small {
  display: block;
  font-weight: 400;
  font-size: 12.5px;
  color: #857d68;
  margin-top: 2px;
}

.lesson-resources-locked-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 0;
  padding: 11px 14px;
  border-radius: 10px;
  background: var(--gold-soft, #fdf9ee);
  border: 1px dashed rgba(212, 175, 55, 0.5);
  font-size: 13.5px;
  color: #8a6d1f;
}

/* ---------- Practice prompts ---------- */

.lesson-practice-card,
.lesson-quiz-card {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 16px;
  padding: 24px 26px;
  margin-bottom: 26px;
}

.lesson-practice-card > h2,
.lesson-quiz-card > h2 {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 18px;
  color: #241f14;
  margin: 0 0 16px;
}

.lesson-practice-card > h2 i,
.lesson-quiz-card > h2 i {
  color: var(--gold-dark, #b68d40);
}

.lesson-practice-item {
  border: 1px solid var(--card-border, #efece6);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 12px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.lesson-practice-item:last-child {
  margin-bottom: 0;
}

.lesson-practice-item.is-done {
  border-color: rgba(33, 122, 60, 0.35);
  background: #f7fbf8;
}

.lesson-practice-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.lesson-practice-head strong {
  font-size: 15px;
  color: #241f14;
}

.lesson-practice-done {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: #217a3c;
  cursor: pointer;
  user-select: none;
}

.lesson-practice-done input {
  width: 16px;
  height: 16px;
  accent-color: #217a3c;
  cursor: pointer;
}

.lesson-practice-prompt {
  font-size: 14.5px;
  line-height: 1.7;
  color: #4c4636;
  margin: 0;
}

.lesson-practice-guidance {
  margin-top: 12px;
}

.lesson-practice-guidance summary {
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--gold-dark, #b68d40);
  user-select: none;
}

.lesson-practice-guidance p {
  margin: 10px 0 0;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--gold-soft, #fdf9ee);
  border: 1px solid rgba(212, 175, 55, 0.3);
  font-size: 14px;
  line-height: 1.65;
  color: #5c5340;
}

/* ---------- Quiz ---------- */

.lesson-quiz-block {
  border: 1px solid var(--card-border, #efece6);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 14px;
}

.lesson-quiz-block:last-child {
  margin-bottom: 0;
}

.lesson-quiz-intro strong {
  font-size: 15.5px;
  color: #241f14;
}

.lesson-quiz-intro p {
  font-size: 14px;
  color: #6f6852;
  margin: 8px 0 0;
  line-height: 1.6;
}

.lesson-quiz-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 12px 0;
  font-size: 13px;
  color: #857d68;
}

.lesson-quiz-meta i {
  color: var(--gold-dark, #b68d40);
  margin-right: 6px;
}

.lesson-quiz-attempt-note {
  font-size: 13px;
  color: #8a6d1f;
  background: var(--gold-soft, #fdf9ee);
  border-radius: 8px;
  padding: 8px 12px;
  margin: 0 0 12px !important;
}

/* 2I.7: giải thích ngắn cho học viên — Quiz chấm tự động. */
.lesson-quiz-hint {
  font-size: 13px;
  color: #5b6472;
  margin: 4px 0 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.lesson-quiz-hint i {
  color: #b08d2e;
}

.lesson-quiz-question {
  border: 1px solid var(--card-border, #efece6);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 0 0 14px;
}

.lesson-quiz-question legend {
  font-size: 14.5px;
  font-weight: 700;
  color: #241f14;
  padding: 0 6px;
  line-height: 1.5;
}

.lesson-quiz-question.is-correct {
  border-color: rgba(33, 122, 60, 0.45);
  background: #f3fbf5;
}

.lesson-quiz-question.is-incorrect {
  border-color: rgba(178, 58, 43, 0.45);
  background: #fff6f5;
}

.lesson-quiz-question.is-partial,
.lesson-quiz-question.is-pending-review {
  border-color: rgba(160, 101, 20, 0.38);
  background: #fffaf0;
}

.lesson-quiz-choices {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

.lesson-quiz-choice {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid #e5decd;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.lesson-quiz-choice:hover {
  border-color: var(--gold, #d4af37);
  background: var(--gold-soft, #fdf9ee);
}

.lesson-quiz-choice input {
  accent-color: #b68d40;
  width: 16px;
  height: 16px;
  flex: none;
}

.lesson-quiz-choice-key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: #f4f0e6;
  font-size: 12.5px;
  font-weight: 700;
  color: #5c5340;
  flex: none;
}

.lesson-quiz-choice-text {
  font-size: 14px;
  color: #38321f;
  line-height: 1.5;
}

.lesson-quiz-choice.is-correct-choice {
  border-color: rgba(33, 122, 60, 0.55);
  background: #eaf6ec;
}

.lesson-quiz-choice.is-correct-choice .lesson-quiz-choice-key {
  background: #217a3c;
  color: #fff;
}

.lesson-quiz-choice.is-wrong-choice {
  border-color: rgba(178, 58, 43, 0.5);
  background: #fdf0ee;
}

.lesson-quiz-choice.is-wrong-choice .lesson-quiz-choice-key {
  background: #b23a2b;
  color: #fff;
}

.lesson-quiz-feedback {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: #5c5340;
  background: #fcfaf5;
  border-radius: 8px;
  padding: 10px 14px;
}

.lesson-quiz-feedback .is-good {
  color: #217a3c;
}

.lesson-quiz-feedback .is-bad {
  color: #b23a2b;
}

.lesson-quiz-feedback-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 8px;
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
}

.lesson-quiz-feedback-status.is-correct {
  background: #e5f6e9;
  color: #217a3c;
}

.lesson-quiz-feedback-status.is-incorrect {
  background: #fce7e4;
  color: #b23a2b;
}

.lesson-quiz-feedback-status.is-partial,
.lesson-quiz-feedback-status.is-pending-review {
  background: #fbf3d9;
  color: #9a6811;
}

.lesson-feedback-line {
  display: grid;
  grid-template-columns: minmax(110px, 0.28fr) minmax(0, 1fr);
  gap: 8px 12px;
  padding: 7px 0;
  border-top: 1px dashed rgba(92, 83, 64, 0.13);
}

.lesson-feedback-line > span {
  color: #7d735c;
  font-weight: 700;
}

.lesson-feedback-line strong,
.lesson-feedback-line div {
  color: #38321f;
  font-weight: 600;
}

.lesson-feedback-line.is-note strong {
  color: #9a6811;
}

.lesson-feedback-matching {
  display: grid;
  gap: 7px;
  margin-top: 8px;
}

.lesson-feedback-match-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr) auto;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #eee6d5;
}

.lesson-feedback-match-row.is-good {
  border-color: rgba(33, 122, 60, 0.28);
  background: #f2fbf4;
}

.lesson-feedback-match-row.is-bad {
  border-color: rgba(178, 58, 43, 0.28);
  background: #fff6f5;
}

.lesson-feedback-match-row em {
  font-style: normal;
  font-weight: 700;
}

.lesson-quiz-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.lesson-quiz-result {
  display: flex;
  align-items: center;
  gap: 16px;
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 18px;
}

.lesson-quiz-result.is-passed {
  background: #eaf6ec;
  border: 1px solid rgba(33, 122, 60, 0.35);
}

.lesson-quiz-result.is-failed {
  background: #fff0ee;
  border: 1px solid rgba(178, 58, 43, 0.32);
}

.lesson-quiz-result.is-submitted {
  background: #eef5fb;
  border: 1px solid rgba(43, 90, 166, 0.2);
}

.lesson-quiz-result.is-pending-review {
  background: #fff8e8;
  border: 1px solid rgba(160, 101, 20, 0.28);
}

.lesson-quiz-result i {
  font-size: 26px;
  color: var(--gold-dark, #b68d40);
}

.lesson-quiz-result.is-passed i {
  color: #217a3c;
}

.lesson-quiz-result.is-failed i {
  color: #b23a2b;
}

.lesson-quiz-result.is-pending-review i {
  color: #a06514;
}

.lesson-quiz-result strong {
  font-size: 16px;
  color: #241f14;
}

.lesson-quiz-result p {
  margin: 4px 0 0;
  font-size: 13.5px;
  color: #6f6852;
}

/* ---------- Practice sets (Phase 2E+) ---------- */

.lesson-practiceset-card {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 16px;
  padding: 24px 26px;
  margin-bottom: 26px;
}

.lesson-practiceset-card > h2 {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 18px;
  color: #241f14;
  margin: 0 0 16px;
}

.lesson-practiceset-card > h2 i {
  color: var(--gold-dark, #b68d40);
}

.lesson-practiceset-intro strong {
  font-size: 15.5px;
  color: #241f14;
}

.lesson-practiceset-intro p {
  font-size: 14px;
  color: #6f6852;
  margin: 8px 0 0;
  line-height: 1.6;
}

.lesson-practiceset-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  margin: 12px 0;
  font-size: 13px;
  color: #857d68;
}

.lesson-practiceset-meta i {
  color: var(--gold-dark, #b68d40);
  margin-right: 6px;
}

.lesson-row-badge.is-required {
  background: #fdf3e0;
  color: #a06514;
  border-color: rgba(160, 101, 20, 0.3);
}

.lesson-practice-answer {
  width: 100%;
  border: 1px solid #e5decd;
  border-radius: 10px;
  padding: 12px 14px;
  font-family: var(--font-body, 'Be Vietnam Pro', sans-serif);
  font-size: 14.5px;
  color: #38321f;
  resize: vertical;
  margin-top: 8px;
}

.lesson-short-answer {
  width: 100%;
  border: 1px solid #e5decd;
  border-radius: 10px;
  padding: 11px 14px;
  font-family: var(--font-body, 'Be Vietnam Pro', sans-serif);
  font-size: 14.5px;
  color: #38321f;
  margin-top: 8px;
}

.lesson-practice-answer:focus {
  outline: none;
  border-color: var(--gold, #d4af37);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.14);
}

.lesson-short-answer:focus {
  outline: none;
  border-color: var(--gold, #d4af37);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.14);
}

.lesson-short-answer.is-correct-answer,
.lesson-practice-answer.is-correct-answer {
  border-color: rgba(33, 122, 60, 0.5);
  background: #f1fbf4;
}

.lesson-short-answer.is-wrong-answer,
.lesson-practice-answer.is-wrong-answer {
  border-color: rgba(178, 58, 43, 0.48);
  background: #fff6f5;
}

.lesson-matching-list {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.lesson-matching-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, 220px);
  gap: 10px;
  align-items: center;
  border: 1px solid #e5decd;
  border-radius: 10px;
  padding: 10px 12px;
  background: #fffdfa;
}

.lesson-matching-row.is-correct-match {
  border-color: rgba(33, 122, 60, 0.42);
  background: #f3fbf5;
}

.lesson-matching-row.is-wrong-match {
  border-color: rgba(178, 58, 43, 0.42);
  background: #fff6f5;
}

.lesson-matching-row span {
  font-size: 14px;
  color: #38321f;
  line-height: 1.45;
}

.lesson-matching-row select {
  width: 100%;
  border: 1px solid #e5decd;
  border-radius: 8px;
  padding: 8px 10px;
  font-family: var(--font-body, 'Be Vietnam Pro', sans-serif);
  font-size: 13.5px;
  color: #38321f;
  background: #fff;
}

@media (max-width: 640px) {
  .lesson-feedback-line,
  .lesson-feedback-match-row {
    grid-template-columns: 1fr;
  }

  .lesson-matching-row {
    grid-template-columns: 1fr;
  }
}

.lesson-entry-table-wrap {
  overflow-x: auto;
  margin-top: 8px;
}

.lesson-entry-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
}

.lesson-entry-table th {
  text-align: left;
  font-size: 12.5px;
  font-weight: 700;
  color: #6f6852;
  padding: 6px 8px;
  border-bottom: 1px solid var(--card-border, #efece6);
}

.lesson-entry-table td {
  padding: 4px;
}

.lesson-entry-table input {
  width: 100%;
  border: 1px solid #e5decd;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13.5px;
  color: #38321f;
}

.lesson-entry-table input:focus {
  outline: none;
  border-color: var(--gold, #d4af37);
}

/* Complete + nav */

.lesson-actions-card {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 16px;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 26px;
}

#lessonCompleteButton.is-done {
  background: #eaf6ec;
  color: #217a3c;
  box-shadow: none;
  cursor: default;
}

.lesson-course-done-note {
  font-size: 14px;
  color: #217a3c;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.lesson-course-done-note[hidden] {
  display: none;
}

.lesson-nav-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.lesson-nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 14px;
  padding: 16px 20px;
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  min-width: 0;
}

.lesson-nav-link:hover {
  border-color: rgba(212, 175, 55, 0.55);
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(64, 52, 22, 0.1);
}

.lesson-nav-link.is-next {
  justify-content: flex-end;
  text-align: right;
}

.lesson-nav-link i {
  color: var(--gold-dark, #b68d40);
  flex: none;
}

.lesson-nav-copy {
  min-width: 0;
}

.lesson-nav-copy small {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: #a89a76;
  margin-bottom: 4px;
}

.lesson-nav-copy span {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #38321f;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Locked state */

.lesson-locked-card {
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 20px;
  padding: 64px 40px;
  text-align: center;
}

.lesson-locked-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 78px;
  height: 78px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(182, 141, 64, 0.1));
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: var(--gold-dark, #b68d40);
  font-size: 30px;
  margin-bottom: 22px;
}

.lesson-locked-card h2 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 24px;
  color: #241f14;
  margin: 0 0 12px;
}

.lesson-locked-card p {
  font-size: 15.5px;
  line-height: 1.7;
  color: #6f6852;
  max-width: 460px;
  margin: 0 auto 26px;
}

.lesson-locked-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* Mobile curriculum toggle */

.lesson-mobile-curriculum {
  display: none;
}

/* ---------- Payment (Phase 2D) ---------- */

.elearning-card-type-badge.is-paid {
  background: var(--gold-soft, #fdf9ee);
  color: #8a6d1f;
  border: 1px solid rgba(212, 175, 55, 0.45);
  font-weight: 800;
}

.course-detail-price {
  display: flex;
  align-items: baseline;
  gap: 12px;
  justify-content: center;
  margin-bottom: 4px;
}

.course-detail-price strong {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 26px;
  color: var(--gold-dark, #b68d40);
}

.course-detail-price s {
  font-size: 15px;
  color: #a89a76;
}

.course-payment-panel {
  display: grid;
  gap: 12px;
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: 14px;
  padding: 18px;
  background: var(--gold-soft, #fdf9ee);
}

.course-payment-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  color: #8a6d1f;
}

.course-payment-status.is-failed {
  color: #b23a2b;
}

.course-payment-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: #6f6852;
}

.course-payment-row strong {
  color: #241f14;
}

.payment-result-card {
  max-width: 560px;
  margin: 40px auto;
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 20px;
  padding: 48px 36px;
  text-align: center;
  display: grid;
  gap: 14px;
  justify-items: center;
}

.payment-result-card.is-paid {
  border-color: rgba(33, 122, 60, 0.4);
}

.payment-result-card.is-failed {
  border-color: rgba(178, 58, 43, 0.35);
}

.payment-result-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 76px;
  border-radius: 22px;
  background: #eaf6ec;
  color: #217a3c;
  font-size: 32px;
}

.payment-result-icon.is-pending {
  background: var(--gold-soft, #fdf9ee);
  color: var(--gold-dark, #b68d40);
}

.payment-result-icon.is-failed {
  background: #fdf0ee;
  color: #b23a2b;
}

.payment-result-card h1 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 26px;
  color: #241f14;
  margin: 0;
}

.payment-result-card p {
  font-size: 15px;
  line-height: 1.7;
  color: #6f6852;
  margin: 0;
}

.payment-result-meta {
  display: flex;
  gap: 10px 24px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 14px;
  color: #6f6852;
  padding: 10px 16px;
  border: 1px dashed rgba(212, 175, 55, 0.45);
  border-radius: 10px;
}

.payment-result-note {
  font-size: 12.5px !important;
  color: #a89a76 !important;
}

.account-order-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border: 1px solid #efece6;
  border-radius: 12px;
  margin-bottom: 10px;
  background: #fff;
}

.account-order-main {
  min-width: 0;
}

.account-order-main strong {
  display: block;
  font-size: 14px;
  color: #241f14;
}

.account-order-main small {
  color: #857d68;
  font-size: 12.5px;
}

/* ---------- Certificate (Phase 2F) ---------- */

.certificate-status-card {
  max-width: 520px;
  margin: 40px auto;
  background: #fff;
  border: 1px solid var(--card-border, #efece6);
  border-radius: 18px;
  padding: 44px 32px;
  text-align: center;
  display: grid;
  gap: 12px;
  justify-items: center;
}

.certificate-status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  border-radius: 20px;
  background: var(--gold-soft, #fdf9ee);
  color: var(--gold-dark, #b68d40);
  font-size: 28px;
}

.certificate-status-card.is-invalid .certificate-status-icon {
  background: #fdf0ee;
  color: #b23a2b;
}

.certificate-status-card h1 {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 22px;
  color: #241f14;
  margin: 0;
}

.certificate-status-card p {
  font-size: 15px;
  color: #6f6852;
  margin: 0;
}

.certificate-revoked-banner {
  max-width: 760px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: 12px;
  background: #fdf0ee;
  border: 1px solid rgba(178, 58, 43, 0.35);
  color: #922e22;
}

.certificate-revoked-banner i {
  font-size: 22px;
}

.certificate-revoked-banner strong {
  display: block;
  font-size: 15px;
}

.certificate-revoked-banner p {
  margin: 4px 0 0;
  font-size: 13.5px;
}

.certificate-sheet {
  max-width: 760px;
  margin: 0 auto;
  background:
    radial-gradient(700px 320px at 90% -10%, rgba(212, 175, 55, 0.12), transparent 60%),
    linear-gradient(160deg, #fffdf8 0%, #fbf6ea 100%);
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: 18px;
  padding: 12px;
  box-shadow: 0 24px 60px rgba(64, 52, 22, 0.16);
}

.certificate-sheet.is-revoked {
  filter: grayscale(0.6);
  opacity: 0.85;
}

.certificate-frame {
  border: 2px solid rgba(212, 175, 55, 0.55);
  border-radius: 12px;
  padding: 44px 40px;
  text-align: center;
}

.certificate-brand {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--gold-dark, #b68d40);
}

.certificate-eyebrow {
  margin: 10px 0 0;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #8a6d1f;
  font-weight: 700;
}

.certificate-divider {
  width: 80px;
  height: 3px;
  margin: 18px auto;
  background: linear-gradient(90deg, transparent, #d4af37, transparent);
}

.certificate-lead {
  font-size: 14.5px;
  color: #6f6852;
  margin: 12px 0 6px;
}

.certificate-name {
  font-family: var(--font-serif, 'Playfair Display', serif);
  font-size: 38px;
  color: #241f14;
  margin: 4px 0;
  line-height: 1.2;
}

.certificate-course {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-size: 22px;
  color: var(--gold-dark, #b68d40);
  margin: 6px 0 4px;
}

.certificate-meta {
  display: flex;
  gap: 12px 34px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 24px;
  font-size: 14px;
  color: #6f6852;
}

.certificate-note {
  margin-top: 26px;
  font-size: 12px;
  color: #9a927d;
  line-height: 1.6;
  word-break: break-word;
}

.certificate-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  margin: 24px auto 0;
  max-width: 760px;
}

.certificate-valid-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 700;
  color: #217a3c;
  width: 100%;
  justify-content: center;
  margin-bottom: 6px;
}

@media print {
  body.elearning-certificate-page {
    background: #fff;
  }
  [data-no-print],
  #siteHeader,
  #siteFooter {
    display: none !important;
  }
  .elearning-section {
    padding: 0 !important;
  }
  .certificate-sheet {
    box-shadow: none;
    border: none;
    max-width: 100%;
  }
}

/* Certificate CTA trong account learning */
.account-cert-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  background: #f7fbf8;
  border: 1px solid rgba(33, 122, 60, 0.25);
  font-size: 13px;
  color: #217a3c;
}

.account-cert-row.is-locked {
  background: #fdfaf3;
  border-color: rgba(212, 175, 55, 0.35);
  color: #8a6d1f;
}

/* ---------- Loading page state ---------- */

.elearning-page-loading {
  padding: 90px 0;
  text-align: center;
  color: #857d68;
}

.elearning-page-loading i {
  font-size: 30px;
  color: var(--gold-dark, #b68d40);
  margin-bottom: 16px;
}

.elearning-page-loading p {
  font-size: 15px;
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 1080px) {
  .course-detail-hero-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .elearning-course-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .elearning-benefit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .elearning-filter-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .lesson-viewer-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .lesson-sidebar {
    display: none;
  }

  .lesson-mobile-curriculum {
    display: block;
    background: #fff;
    border: 1px solid var(--card-border, #efece6);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 4px;
  }

  .lesson-mobile-curriculum > summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 16px 20px;
    cursor: pointer;
    font-family: var(--font-heading, 'Montserrat', sans-serif);
    font-weight: 700;
    font-size: 15px;
    color: #241f14;
    background: var(--gold-soft, #fdf9ee);
    user-select: none;
  }

  .lesson-mobile-curriculum > summary::-webkit-details-marker {
    display: none;
  }

  .lesson-mobile-curriculum > summary i {
    color: var(--gold-dark, #b68d40);
  }

  .lesson-mobile-curriculum .lesson-sidebar-body {
    max-height: 420px;
    overflow-y: auto;
  }
}

@media (max-width: 767px) {
  .elearning-hero {
    padding: 70px 0 50px;
  }

  .elearning-hero-title {
    font-size: 28px;
    letter-spacing: -0.3px;
  }

  .elearning-hero-lead {
    font-size: 15px;
  }

  .hero-bg-image img {
    object-position: 60% center;
  }

  .hero-bg-image::after {
    background:
      linear-gradient(to right,
        rgba(10, 12, 22, 0.96) 0%,
        rgba(12, 14, 23, 0.9) 30%,
        rgba(12, 14, 23, 0.7) 55%,
        rgba(12, 14, 23, 0.45) 80%,
        rgba(12, 14, 23, 0.3) 100%),
      linear-gradient(to bottom,
        rgba(10, 12, 22, 0.4) 0%,
        transparent 20%,
        transparent 75%,
        rgba(10, 12, 22, 0.6) 100%);
  }

  .hero-text-col > * {
    animation-duration: 0.5s;
  }

  .elearning-section {
    padding: 52px 0;
  }

  .elearning-section.is-tight {
    padding: 40px 0;
  }

  .elearning-section-head h2 {
    font-size: 25px;
  }

  .elearning-course-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .elearning-benefit-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .elearning-filter-bar {
    grid-template-columns: 1fr;
    margin-top: -30px;
    padding: 16px;
  }

  .elearning-cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 36px 28px;
  }

  .course-detail-hero {
    padding: 52px 0 48px;
  }

  .course-detail-hero h1 {
    font-size: 27px;
  }

  .course-detail-panel {
    padding: 24px 20px;
  }

  .lesson-viewer-topbar-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .lesson-viewer-layout {
    padding: 26px 0 56px;
  }

  .lesson-main-head h1 {
    font-size: 23px;
  }

  .lesson-content-card {
    padding: 24px 20px;
  }

  .lesson-content-body {
    font-size: 15.5px;
  }

  .lesson-nav-row {
    grid-template-columns: 1fr;
  }

  .lesson-actions-card {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .lesson-actions-card .elearning-btn-gold {
    width: 100%;
  }

  .lesson-locked-card {
    padding: 44px 22px;
  }

  .elearning-catalog-toolbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* Practice Builder 2I — learner answered-progress indicator */
.lesson-ps-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 16px 0 6px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: #6b5a2a;
  background: rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.3);
  transition: background 0.2s ease, color 0.2s ease;
}

.lesson-ps-progress i {
  opacity: 0.65;
}

.lesson-ps-progress.is-complete {
  color: #1f7a3d;
  background: rgba(46, 160, 82, 0.12);
  border-color: rgba(46, 160, 82, 0.4);
}

.lesson-ps-progress.is-complete i {
  opacity: 1;
  color: #22a559;
}