:root {
  --onedu-bg: #f3f6f8;
  --onedu-border: #d7dee7;
  --onedu-muted: #64748b;
  --onedu-ink: #101828;
  --onedu-ink-soft: #334155;
  --onedu-navy: #071827;
  --onedu-steel: #24384c;
  --onedu-primary: #d71920;
  --onedu-primary-dark: #a91117;
  --onedu-accent: #1f6f8b;
  --onedu-surface: #ffffff;
  --onedu-surface-muted: #e8eef3;
  --onedu-shadow: 0 14px 36px rgba(15, 23, 42, 0.1);
}

body {
  background: var(--onedu-bg);
  color: var(--onedu-ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.top-strip {
  background: var(--onedu-navy);
  border-bottom: 3px solid var(--onedu-primary);
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.48rem 0;
  text-transform: uppercase;
}

.navbar {
  background: rgba(255, 255, 255, 0.96) !important;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}

.navbar-brand {
  color: var(--onedu-ink) !important;
  letter-spacing: 0;
}

.brand-word {
  align-items: center;
  display: inline-flex;
  font-size: 1.2rem;
  font-weight: 850;
  gap: 0.55rem;
}

.brand-word::before {
  background: var(--onedu-primary);
  content: "";
  display: inline-block;
  height: 1.15rem;
  width: 0.28rem;
}

.onedu-navbar {
  backdrop-filter: blur(14px);
}

.nav-link {
  color: #334155;
  font-size: 0.9rem;
  font-weight: 700;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--onedu-primary);
}

main.container {
  max-width: 1180px;
}

.user-chip {
  background: #f8fafc;
  border: 1px solid var(--onedu-border);
  border-radius: 0.25rem;
  color: var(--onedu-ink-soft);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.32rem 0.68rem;
}

.btn {
  border-radius: 0.25rem;
  font-size: 0.9rem;
  font-weight: 750;
  padding: 0.55rem 0.95rem;
}

.btn-primary {
  background-color: var(--onedu-primary);
  border-color: var(--onedu-primary);
  box-shadow: 0 10px 20px rgba(215, 25, 32, 0.18);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--onedu-primary-dark);
  border-color: var(--onedu-primary-dark);
}

.btn-outline-primary {
  border-color: #8ba0b5;
  color: var(--onedu-navy);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--onedu-navy);
  border-color: var(--onedu-navy);
}

.badge {
  border-radius: 0.2rem;
  font-weight: 700;
  padding: 0.42em 0.62em;
}

.alert {
  border-radius: 0.5rem;
  border-width: 1px;
}

.page-header {
  background:
    linear-gradient(120deg, rgba(7, 24, 39, 0.98), rgba(36, 56, 76, 0.96)),
    var(--onedu-navy);
  border-bottom: 4px solid var(--onedu-primary);
  color: #fff;
  margin-bottom: 2.25rem;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  min-width: 0;
  padding: 2.5rem max(1rem, calc((100vw - 1180px) / 2 + 1rem));
}

.page-header h1 {
  color: #fff;
  font-size: 2.35rem;
  font-weight: 850;
  margin-bottom: 0.35rem;
}

.page-header p {
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.page-header .btn-outline-primary,
.page-header .btn-outline-secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.42);
  color: #fff;
}

.page-header .btn-outline-primary:hover,
.page-header .btn-outline-primary:focus,
.page-header .btn-outline-secondary:hover,
.page-header .btn-outline-secondary:focus {
  background: #fff;
  border-color: #fff;
  color: var(--onedu-navy);
}

.card {
  background: var(--onedu-surface);
  border-color: var(--onedu-border);
  border-radius: 0.35rem;
  min-width: 0;
}

.card.shadow-sm {
  box-shadow: var(--onedu-shadow) !important;
}

.course-card {
  border-top: 3px solid var(--onedu-primary);
  overflow: hidden;
  transition: box-shadow 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.course-card:hover {
  border-color: #b9c5d2;
  box-shadow: 0 22px 48px rgba(15, 23, 42, 0.14) !important;
  transform: translateY(-3px);
}

.course-thumb {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--onedu-surface-muted);
}

.course-thumb-empty {
  align-items: center;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 44%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 28px),
    var(--onedu-navy);
  color: rgba(255, 255, 255, 0.82);
  display: flex;
  font-size: 0.84rem;
  font-weight: 800;
  justify-content: center;
  letter-spacing: 0.16em;
}

.course-card-eyebrow {
  color: var(--onedu-primary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin-bottom: 0.6rem;
}

.course-card .card-body {
  padding: 1.25rem;
}

.course-card .card-title {
  color: var(--onedu-ink);
  font-weight: 800;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.course-card-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

.course-card-actions .btn {
  width: 100%;
}

.course-card-actions form {
  margin: 0;
}

.line-clamp {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-meta,
.detail-meta {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 0;
}

.course-meta div,
.detail-meta div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.course-meta dt,
.detail-meta dt {
  color: var(--onedu-muted);
  font-weight: 650;
}

.course-meta dd,
.detail-meta dd {
  margin-bottom: 0;
  text-align: right;
}

.detail-meta dd.time-value {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.progress {
  height: 0.65rem;
  background-color: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  background: linear-gradient(90deg, var(--onedu-primary), var(--onedu-accent));
}

.empty-state {
  border: 1px solid var(--onedu-border);
  border-left: 4px solid var(--onedu-primary);
  border-radius: 0.35rem;
  background: #fff;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.07);
  padding: 3rem 1.25rem;
  text-align: center;
}

.empty-state.compact {
  padding: 1.5rem;
}

.empty-state h2,
.empty-state h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.empty-state p {
  color: var(--onedu-muted);
}

.empty-state .btn {
  min-width: 10rem;
}

.home-hero {
  color: #fff;
  margin: -1.5rem calc(50% - 50vw) 1.35rem;
  min-height: 520px;
  overflow: hidden;
  padding: 4rem max(1rem, calc((100vw - 1180px) / 2 + 1rem)) 3.25rem;
  position: relative;
}

.archive-hero {
  background:
    linear-gradient(135deg, #f8fbff 0%, #edf7f4 45%, #eef4ff 100%);
  color: var(--onedu-ink);
  isolation: isolate;
}

.archive-hero::before {
  background:
    linear-gradient(115deg, rgba(15, 118, 110, 0.15), transparent 34%),
    linear-gradient(285deg, rgba(250, 204, 21, 0.16), transparent 42%);
  content: "";
  inset: 0;
  position: absolute;
  z-index: -3;
}

.archive-hero-scene {
  inset: 0;
  position: absolute;
  z-index: -2;
}

.archive-grid-plane {
  background-image:
    linear-gradient(rgba(15, 118, 110, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 118, 110, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  inset: 0;
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.15), #000 35%, rgba(0, 0, 0, 0.55));
  position: absolute;
}

.archive-signal-band {
  border: 1px solid rgba(15, 118, 110, 0.16);
  height: 12rem;
  position: absolute;
  transform: rotate(-12deg);
  width: 56rem;
}

.archive-signal-band.band-one {
  background: rgba(255, 255, 255, 0.42);
  right: -12rem;
  top: 4rem;
}

.archive-signal-band.band-two {
  background: rgba(250, 204, 21, 0.12);
  bottom: 0;
  left: -14rem;
}

.home-hero-inner {
  align-items: center;
  display: grid;
  gap: 2.5rem;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.72fr);
  min-height: 390px;
  position: relative;
  z-index: 1;
}

.home-hero-copy {
  max-width: 760px;
}

.home-brand-lockup {
  align-items: center;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(15, 118, 110, 0.16);
  border-radius: 0.45rem;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
  display: inline-flex;
  margin-bottom: 1.35rem;
  padding: 0.7rem 0.95rem;
}

.home-brand-lockup img {
  display: block;
  height: auto;
  max-width: min(17rem, 58vw);
}

.home-hero-copy h1 {
  color: var(--onedu-ink);
  font-size: clamp(2.25rem, 5vw, 4.65rem);
  font-weight: 950;
  line-height: 1.04;
  margin-bottom: 1rem;
  text-wrap: balance;
}

.home-hero-copy p {
  color: var(--onedu-ink-soft);
  font-size: 1.08rem;
  margin-bottom: 1.35rem;
  max-width: 48rem;
}

.home-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.home-hero-actions .btn-light {
  border-color: rgba(15, 118, 110, 0.18);
  color: var(--onedu-ink);
}

.home-hero-actions .btn-outline-light {
  border-color: rgba(15, 118, 110, 0.42);
  color: #0f766e;
}

.home-hero-actions .btn-outline-light:hover,
.home-hero-actions .btn-outline-light:focus {
  background: #0f766e;
  border-color: #0f766e;
  color: #fff;
}

.home-hero-actions .btn-primary {
  background-color: #0f766e;
  border-color: #0f766e;
  box-shadow: 0 16px 32px rgba(15, 118, 110, 0.24);
}

.home-hero-actions .btn-primary:hover,
.home-hero-actions .btn-primary:focus {
  background-color: #0b5f59;
  border-color: #0b5f59;
}

.archive-console {
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 0.65rem;
  box-shadow: 0 26px 70px rgba(15, 23, 42, 0.13);
  min-width: 0;
  padding: 1rem;
}

.archive-console-head {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.8rem;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}

.archive-console-head span {
  color: #0f766e;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.archive-console-head strong {
  color: var(--onedu-ink);
  font-size: 0.92rem;
}

.archive-player-preview {
  background: #071827;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.5rem;
  overflow: hidden;
}

.archive-player-screen {
  align-items: center;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.88), rgba(7, 24, 39, 0.96)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 9px);
  display: grid;
  min-height: 190px;
  place-items: center;
  position: relative;
}

.archive-play-mark {
  border-bottom: 1.05rem solid transparent;
  border-left: 1.65rem solid rgba(255, 255, 255, 0.92);
  border-top: 1.05rem solid transparent;
  filter: drop-shadow(0 10px 22px rgba(0, 0, 0, 0.28));
  height: 0;
  width: 0;
}

.archive-watermark-preview {
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.36);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  padding: 0.35rem 0.55rem;
  position: absolute;
  right: 1rem;
  top: 1rem;
}

.archive-scan-line {
  animation: archiveScan 4.5s ease-in-out infinite;
  background: linear-gradient(90deg, transparent, rgba(250, 204, 21, 0.72), transparent);
  height: 2px;
  left: 0;
  position: absolute;
  right: 0;
  top: 34%;
}

.archive-progress-preview {
  background: rgba(255, 255, 255, 0.08);
  height: 0.5rem;
  margin: 0.85rem;
  overflow: hidden;
}

.archive-progress-preview span {
  animation: archiveProgress 6s ease-in-out infinite;
  background: linear-gradient(90deg, #facc15, #0f766e);
  display: block;
  height: 100%;
  width: 66%;
}

.home-hero-panel {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 0.85rem;
}

.home-hero-panel div {
  background: rgba(248, 250, 252, 0.84);
  border: 1px solid rgba(15, 118, 110, 0.12);
  border-radius: 0.4rem;
  min-width: 0;
  padding: 0.75rem;
}

.home-hero-panel span {
  color: var(--onedu-muted);
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
}

.home-hero-panel strong {
  color: var(--onedu-ink);
  display: block;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.15;
}

@keyframes archiveScan {
  0%,
  100% {
    opacity: 0.25;
    transform: translateY(-42px);
  }
  50% {
    opacity: 0.9;
    transform: translateY(74px);
  }
}

@keyframes archiveProgress {
  0%,
  100% {
    width: 48%;
  }
  50% {
    width: 84%;
  }
}

.home-purpose-section {
  align-items: center;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  margin-bottom: 2rem;
}

.home-purpose-copy {
  min-width: 0;
}

.home-purpose-copy span {
  color: #0f766e;
  display: block;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  margin-bottom: 0.65rem;
}

.home-purpose-copy h2 {
  color: var(--onedu-ink);
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 0.8rem;
}

.home-purpose-copy p {
  color: var(--onedu-muted);
  margin-bottom: 0;
}

.home-purpose-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.home-purpose-grid div {
  background: #fff;
  border: 1px solid var(--onedu-border);
  border-radius: 0.35rem;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.05);
  min-width: 0;
  padding: 1rem;
}

.home-purpose-grid strong {
  color: var(--onedu-ink);
  display: block;
  font-weight: 850;
  margin-bottom: 0.3rem;
}

.home-purpose-grid span {
  color: var(--onedu-muted);
  display: block;
  font-size: 0.88rem;
}

.home-workflow {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 2.5rem;
}

.home-workflow-item {
  background: #fff;
  border: 1px solid var(--onedu-border);
  border-radius: 0.35rem;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.06);
  min-width: 0;
  padding: 1.15rem;
}

.home-workflow-item span {
  color: #0f766e;
  display: block;
  font-size: 0.72rem;
  font-weight: 900;
  margin-bottom: 0.45rem;
}

.home-workflow-item strong {
  color: var(--onedu-ink);
  display: block;
  font-size: 1.05rem;
  font-weight: 850;
  margin-bottom: 0.35rem;
}

.home-workflow-item p {
  color: var(--onedu-muted);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.home-course-section {
  margin-bottom: 2.5rem;
}

.home-course-card {
  border-top-color: #0f766e;
}

.home-course-card:hover {
  border-color: #99c9c3;
}

.home-support-strip {
  align-items: center;
  background: #fff;
  border: 1px solid var(--onedu-border);
  border-left: 4px solid #0f766e;
  border-radius: 0.35rem;
  color: var(--onedu-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding: 1rem 1.15rem;
}

.home-support-strip div {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
}

.home-support-strip strong {
  color: var(--onedu-ink);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.65rem;
  position: relative;
}

.section-title::after {
  background: var(--onedu-primary);
  bottom: 0;
  content: "";
  height: 3px;
  left: 0;
  position: absolute;
  width: 2.4rem;
}

.section-title h2 {
  color: var(--onedu-navy);
  font-size: 1.2rem;
  font-weight: 850;
  margin-bottom: 0;
}

.lesson-list .list-group-item {
  border-color: var(--onedu-border);
  min-width: 0;
}

.list-group-item {
  border-color: var(--onedu-border);
}

.list-group-item-action {
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.list-group-item.active {
  background-color: var(--onedu-navy);
  border-color: var(--onedu-navy);
}

.detail-side-card {
  top: 5rem;
}

.learning-placeholder {
  min-height: min(56vw, 430px);
  border-radius: 0.35rem;
  background: linear-gradient(135deg, var(--onedu-navy), var(--onedu-steel));
  color: #fff;
  display: grid;
  place-items: center;
  padding: 2rem;
  text-align: center;
}

.learning-placeholder h2 {
  font-weight: 700;
}

.learning-placeholder p {
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 0;
}

.video-card {
  overflow: hidden;
}

.video-player-shell {
  background: #0f172a;
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
  width: 100%;
}

.lesson-video {
  aspect-ratio: 16 / 9;
  background: #0f172a;
  display: block;
  max-height: calc(100vh - 10rem);
  width: 100%;
}

.lesson-video::-webkit-media-controls-fullscreen-button {
  display: none;
}

.video-watermark {
  background: rgba(15, 23, 42, 0.16);
  border-radius: 0.35rem;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  left: 50%;
  line-height: 1.2;
  max-width: min(72%, 34rem);
  opacity: 0.22;
  overflow: hidden;
  padding: 0.28rem 0.48rem;
  pointer-events: none;
  position: absolute;
  text-overflow: ellipsis;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.55);
  top: 50%;
  transform: translate(-50%, -50%);
  transition: top 420ms ease, left 420ms ease, transform 420ms ease;
  user-select: none;
  white-space: nowrap;
  z-index: 4;
}

.wm-pos-center {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.wm-pos-top-left {
  left: 8%;
  top: 12%;
  transform: translate(0, 0);
}

.wm-pos-top-right {
  left: 92%;
  top: 12%;
  transform: translate(-100%, 0);
}

.wm-pos-mid-left {
  left: 7%;
  top: 48%;
  transform: translate(0, -50%);
}

.wm-pos-mid-right {
  left: 93%;
  top: 48%;
  transform: translate(-100%, -50%);
}

.wm-pos-bottom-left {
  left: 8%;
  top: 78%;
  transform: translate(0, -100%);
}

.wm-pos-bottom-right {
  left: 92%;
  top: 78%;
  transform: translate(-100%, -100%);
}

.video-fullscreen-button {
  opacity: 0.86;
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  z-index: 5;
}

.video-player-shell:fullscreen,
.video-player-shell:-webkit-full-screen {
  background: #000;
  height: 100vh;
  width: 100vw;
}

.video-player-shell:fullscreen .lesson-video,
.video-player-shell:-webkit-full-screen .lesson-video {
  height: 100%;
  max-height: none;
  object-fit: contain;
}

.video-empty {
  border: 0;
  border-radius: 0;
  min-height: 22rem;
}

.lesson-side-list .list-group-item {
  align-items: center;
  min-width: 0;
}

.lesson-side-list .list-group-item span:first-child {
  overflow-wrap: anywhere;
}

.lesson-side-list .list-group-item.active .badge {
  background: rgba(255, 255, 255, 0.22) !important;
  color: #fff !important;
}

.quiz-list-item {
  align-items: center;
  border: 1px solid var(--onedu-border);
  border-radius: 0.5rem;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1rem;
}

.quiz-list-actions {
  flex-shrink: 0;
}

.quiz-question-card {
  overflow: hidden;
}

.quiz-question-text {
  font-size: 1rem;
  line-height: 1.65;
  white-space: pre-wrap;
}

.quiz-choice-item {
  cursor: pointer;
  line-height: 1.5;
}

.result-score {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.quiz-answer-review {
  border: 1px solid var(--onedu-border);
  border-radius: 0.5rem;
  padding: 1rem;
}

.submitted-text-answer {
  background: #f8fafc;
  border-radius: 0.375rem;
  padding: 0.75rem;
  white-space: pre-wrap;
}

.certificate-verify-meta dd {
  overflow-wrap: anywhere;
}

@media (max-width: 575.98px) {
  .page-header h1 {
    font-size: 1.55rem;
  }

  .btn {
    white-space: normal;
  }

  .course-meta div,
  .detail-meta div {
    flex-direction: column;
    gap: 0.15rem;
  }

  .course-meta dd,
  .detail-meta dd {
    text-align: left;
  }

  .empty-state {
    padding: 2rem 1rem;
  }

  .lesson-video {
    max-height: none;
  }

  .quiz-list-item {
    align-items: stretch;
    flex-direction: column;
  }

  .quiz-list-actions,
  .quiz-list-actions .btn {
    width: 100%;
  }

  .video-watermark {
    font-size: 0.72rem;
    max-width: 76%;
    opacity: 0.2;
    padding: 0.22rem 0.38rem;
  }

  .video-fullscreen-button {
    font-size: 0.78rem;
    right: 0.5rem;
    top: 0.5rem;
  }
}

/* 2026 refresh: calm student LMS + focus player */
:root {
  --onedu-bg: #f7fafb;
  --onedu-border: #d8e7e2;
  --onedu-muted: #667085;
  --onedu-ink: #172033;
  --onedu-ink-soft: #425466;
  --onedu-navy: #145c61;
  --onedu-steel: #dff3ef;
  --onedu-primary: #0f766e;
  --onedu-primary-dark: #0b5f59;
  --onedu-accent: #3b82f6;
  --onedu-surface: #ffffff;
  --onedu-surface-muted: #edf7f4;
  --onedu-shadow: 0 16px 38px rgba(15, 118, 110, 0.08);
}

body {
  background:
    linear-gradient(180deg, #f8fbfc 0%, #f3f8f7 42%, #f7fafb 100%);
}

.top-strip {
  background: #ffffff;
  border-bottom: 1px solid var(--onedu-border);
  color: #667085;
  letter-spacing: 0.04em;
}

.navbar {
  border-bottom: 1px solid var(--onedu-border) !important;
  box-shadow: 0 8px 24px rgba(23, 32, 51, 0.04);
}

.brand-word {
  color: var(--onedu-primary) !important;
}

.brand-word::before {
  background: var(--onedu-primary);
  border-radius: 999px;
  height: 1.35rem;
  width: 0.35rem;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--onedu-primary);
}

.user-chip {
  background: var(--onedu-surface-muted);
  border-color: var(--onedu-border);
  border-radius: 999px;
  color: var(--onedu-primary-dark);
}

.btn {
  border-radius: 7px;
  letter-spacing: 0;
}

.btn-primary {
  background-color: var(--onedu-primary);
  border-color: var(--onedu-primary);
  box-shadow: 0 10px 20px rgba(15, 118, 110, 0.12);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--onedu-primary-dark);
  border-color: var(--onedu-primary-dark);
}

.btn-outline-primary {
  border-color: #8dc8bc;
  color: var(--onedu-primary);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background-color: var(--onedu-primary);
  border-color: var(--onedu-primary);
  color: #fff;
}

.page-header {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(237, 247, 244, 0.96)),
    #fff;
  border-bottom: 1px solid var(--onedu-border);
  color: var(--onedu-ink);
  margin-bottom: 1.6rem;
  padding-bottom: 2rem;
  padding-top: 2rem;
}

.page-header h1 {
  color: var(--onedu-ink);
  font-size: clamp(1.75rem, 3vw, 2.45rem);
  font-weight: 850;
}

.page-header p {
  color: var(--onedu-muted);
}

.hero-kicker,
.learning-card-label {
  color: var(--onedu-primary);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.student-hero {
  min-height: auto;
}

.player-page-header {
  margin-bottom: 1rem;
  padding-bottom: 1.4rem;
  padding-top: 1.4rem;
}

.card,
.empty-state,
.timeline-panel,
.learning-card {
  border-color: var(--onedu-border);
  border-radius: 8px;
}

.card.shadow-sm,
.empty-state,
.timeline-panel,
.learning-card,
.learning-overview {
  box-shadow: var(--onedu-shadow) !important;
}

.course-card {
  border-top: 0;
  overflow: hidden;
}

.course-card::before {
  background: linear-gradient(90deg, var(--onedu-primary), var(--onedu-accent));
  content: "";
  display: block;
  height: 4px;
}

.course-thumb-empty {
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.92), rgba(59, 130, 246, 0.82)),
    var(--onedu-primary);
}

.course-card-eyebrow {
  color: var(--onedu-primary);
}

.progress {
  background-color: #e5efed;
}

.progress-bar {
  background: linear-gradient(90deg, var(--onedu-primary), var(--onedu-accent));
}

.section-title::after {
  background: var(--onedu-primary);
}

.section-title h2 {
  color: var(--onedu-ink);
}

.learning-overview {
  background: #fff;
  border: 1px solid var(--onedu-border);
  border-radius: 8px;
  display: grid;
  gap: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  overflow: hidden;
}

.learning-overview div {
  border-right: 1px solid var(--onedu-border);
  padding: 1rem 1.15rem;
}

.learning-overview div:last-child {
  border-right: 0;
}

.learning-overview span {
  color: var(--onedu-muted);
  display: block;
  font-size: 0.78rem;
  font-weight: 750;
}

.learning-overview strong {
  color: var(--onedu-primary);
  display: block;
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1.1;
  margin-top: 0.25rem;
}

.learning-section-title {
  align-items: flex-end;
}

.learning-section-title span {
  color: var(--onedu-primary);
  display: block;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  margin-bottom: 0.25rem;
}

.learning-card {
  background: #fff;
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr);
  overflow: hidden;
}

.learning-card-status {
  align-items: center;
  background: linear-gradient(180deg, var(--onedu-primary), #3b82f6);
  color: #fff;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  justify-content: center;
  padding: 0.8rem 0.35rem;
  text-align: center;
}

.learning-card-status span,
.learning-card-status strong {
  display: block;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
}

.learning-card-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.15rem;
}

.learning-card-title {
  color: var(--onedu-ink);
  font-size: 1.08rem;
  font-weight: 850;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.learning-meta,
.detail-meta {
  display: grid;
  gap: 0.5rem;
}

.learning-meta div,
.detail-meta div {
  align-items: start;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.learning-meta dt,
.detail-meta dt {
  color: var(--onedu-muted);
  font-size: 0.84rem;
  font-weight: 750;
}

.learning-meta dd,
.detail-meta dd {
  color: var(--onedu-ink-soft);
  font-size: 0.84rem;
  font-weight: 700;
  margin-bottom: 0;
  text-align: right;
}

.detail-meta dd.time-value {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.learning-card-actions {
  display: grid;
  gap: 0.5rem;
}

.timeline-panel {
  background: #fff;
  border: 1px solid var(--onedu-border);
  overflow: hidden;
}

.timeline-panel-head {
  align-items: center;
  border-bottom: 1px solid var(--onedu-border);
  display: flex;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
}

.timeline-panel-head span {
  color: var(--onedu-primary);
  display: block;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.timeline-panel-head h2 {
  color: var(--onedu-ink);
  font-size: 1.15rem;
  font-weight: 850;
  margin: 0.2rem 0 0;
}

.timeline-panel-head strong {
  color: var(--onedu-primary);
  font-size: 1.35rem;
  font-weight: 900;
}

.learning-timeline {
  padding: 0.85rem 1.25rem 1.25rem;
}

.timeline-step {
  color: inherit;
  display: grid;
  gap: 1rem;
  grid-template-columns: 3rem minmax(0, 1fr) auto;
  padding: 1rem 0;
  position: relative;
  text-decoration: none;
}

.timeline-step:not(:last-child)::after {
  background: var(--onedu-border);
  bottom: -0.15rem;
  content: "";
  left: 1.45rem;
  position: absolute;
  top: 4rem;
  width: 2px;
}

.timeline-step-number {
  align-items: center;
  background: var(--onedu-surface-muted);
  border: 1px solid var(--onedu-border);
  border-radius: 999px;
  color: var(--onedu-muted);
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 900;
  height: 3rem;
  justify-content: center;
  width: 3rem;
  z-index: 1;
}

.timeline-step.done .timeline-step-number,
.timeline-step.active .timeline-step-number {
  background: var(--onedu-primary);
  border-color: var(--onedu-primary);
  color: #fff;
}

.timeline-step-title {
  color: var(--onedu-ink);
  font-weight: 850;
  overflow-wrap: anywhere;
}

.timeline-step-desc {
  color: var(--onedu-muted);
  font-size: 0.88rem;
  margin-top: 0.18rem;
}

.timeline-step-action {
  align-items: center;
  display: flex;
  flex-shrink: 0;
  gap: 0.5rem;
}

.learning-summary-card {
  overflow: hidden;
}

.learning-summary-card::before {
  background: linear-gradient(90deg, var(--onedu-primary), var(--onedu-accent));
  content: "";
  display: block;
  height: 4px;
}

.focus-player-layout {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr);
}

.focus-player-stage {
  min-width: 0;
}

.focus-player-stage .video-card {
  background: #111827;
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(17, 24, 39, 0.16);
  overflow: hidden;
}

.focus-player-dock {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.65fr);
}

.video-player-shell {
  background: #111827;
}

.lesson-video {
  max-height: calc(100vh - 13rem);
}

.lesson-side-list .list-group-item {
  border-left: 0;
  border-right: 0;
}

.lesson-side-list .list-group-item:first-child {
  border-top: 0;
}

.lesson-side-list .list-group-item:last-child {
  border-bottom: 0;
}

.lesson-attachment-list {
  display: grid;
  gap: 0.75rem;
}

.lesson-attachment-item {
  align-items: center;
  background: #f8fafc;
  border: 1px solid var(--onedu-border);
  border-radius: 8px;
  display: flex;
  gap: 0.85rem;
  justify-content: space-between;
  padding: 0.85rem;
}

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

.lesson-attachment-copy strong,
.lesson-attachment-copy span,
.lesson-attachment-copy p {
  display: block;
}

.lesson-attachment-copy strong {
  color: var(--onedu-ink);
  font-weight: 850;
  overflow-wrap: anywhere;
}

.lesson-attachment-copy span {
  color: var(--onedu-muted);
  font-size: 0.82rem;
  margin-top: 0.15rem;
  overflow-wrap: anywhere;
}

.lesson-attachment-copy p {
  color: var(--onedu-muted);
  font-size: 0.86rem;
  margin: 0.35rem 0 0;
}

.lesson-attachment-item > .btn {
  align-items: center;
  display: inline-flex;
  flex: 0 0 auto;
  justify-content: center;
  min-width: 5.8rem;
  white-space: nowrap;
}

.lesson-attachment-empty {
  background: #f8fafc;
  border: 1px dashed var(--onedu-border);
  border-radius: 8px;
  color: var(--onedu-muted);
  padding: 1rem;
  text-align: center;
}

.list-group-item.active {
  background-color: var(--onedu-primary);
  border-color: var(--onedu-primary);
}

.login-support-info {
  border-top: 1px solid var(--onedu-border);
  color: #425466;
  font-size: 0.82rem;
  line-height: 1.75;
  margin-top: 1.35rem;
  padding-top: 1.15rem;
  text-align: center;
}

.login-support-info strong {
  color: var(--onedu-ink);
  font-weight: 850;
}

.login-support-company {
  align-items: center;
  display: inline-flex;
  flex-wrap: nowrap;
  gap: 0.25rem;
  justify-content: center;
  max-width: 100%;
  white-space: nowrap;
}

.login-support-company strong {
  flex: 0 0 auto;
  white-space: nowrap;
}

.login-support-info a {
  color: #2563eb;
  font-weight: 850;
  text-decoration: none;
}

.login-support-info a:hover,
.login-support-info a:focus {
  text-decoration: underline;
}

.auth-link-row {
  align-items: center;
  color: var(--onedu-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
  justify-content: center;
  text-align: center;
}

.auth-link-row a {
  font-weight: 750;
  text-decoration: none;
}

.auth-link-row a:hover,
.auth-link-row a:focus {
  text-decoration: underline;
}

.auth-link-divider {
  color: #cbd5e1;
}

.login-support-links {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.85rem;
  justify-content: center;
}

@media (max-width: 991.98px) {
  .home-hero {
    min-height: 0;
    padding-top: 3.75rem;
  }

  .home-hero-inner {
    align-items: start;
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .home-hero-panel,
  .home-purpose-section,
  .home-workflow {
    grid-template-columns: 1fr;
  }

  .home-purpose-grid {
    grid-template-columns: 1fr;
  }

  .archive-console {
    max-width: 42rem;
  }

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

  .lesson-attachment-item {
    align-items: stretch;
    flex-direction: column;
  }

  .lesson-attachment-item > .btn {
    width: 100%;
  }

  .timeline-step {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .timeline-step-action {
    grid-column: 2;
  }
}

@media (max-width: 575.98px) {
  .home-hero {
    padding-bottom: 2.5rem;
  }

  .home-brand-lockup {
    padding: 0.55rem 0.7rem;
  }

  .home-hero-actions .btn {
    width: 100%;
  }

  .archive-player-screen {
    min-height: 150px;
  }

  .home-hero-panel {
    grid-template-columns: 1fr;
  }

  .learning-overview {
    grid-template-columns: 1fr;
  }

  .learning-overview div {
    border-bottom: 1px solid var(--onedu-border);
    border-right: 0;
  }

  .learning-overview div:last-child {
    border-bottom: 0;
  }

  .learning-card {
    grid-template-columns: 1fr;
  }

  .learning-card-status {
    align-items: center;
    flex-direction: row;
    justify-content: space-between;
    padding: 0.65rem 1rem;
  }

  .learning-card-status span,
  .learning-card-status strong {
    writing-mode: horizontal-tb;
  }

  .timeline-panel-head,
  .timeline-step-action {
    align-items: stretch;
    flex-direction: column;
  }

  .timeline-step {
    gap: 0.75rem;
    grid-template-columns: 2.55rem minmax(0, 1fr);
  }

  .timeline-step-number {
    height: 2.55rem;
    width: 2.55rem;
  }

  .login-support-info {
    font-size: 0.78rem;
    text-align: center;
  }

  .login-support-company {
    font-size: clamp(0.64rem, 2.75vw, 0.78rem);
  }

  .login-support-links {
    align-items: center;
    flex-direction: column;
    gap: 0.15rem;
  }
}

/* 2026 Withbrain portal home refresh */
:root {
  --onedu-bg: #f7fbfa;
  --onedu-border: #dbe8e6;
  --onedu-muted: #5f6f7d;
  --onedu-ink: #0c1729;
  --onedu-ink-soft: #34465a;
  --onedu-navy: #061b2a;
  --onedu-steel: #eaf5f3;
  --onedu-primary: #08756f;
  --onedu-primary-dark: #064f4d;
  --onedu-accent: #d8b84f;
  --onedu-surface: #ffffff;
  --onedu-surface-muted: #eef7f6;
  --onedu-shadow: 0 18px 42px rgba(6, 27, 42, 0.08);
}

.top-strip {
  background: #fff;
  border-bottom: 1px solid rgba(8, 117, 111, 0.14);
  color: #647284;
}

.onedu-navbar {
  background: rgba(255, 255, 255, 0.93) !important;
  border-bottom: 1px solid rgba(8, 117, 111, 0.14) !important;
  box-shadow: 0 10px 28px rgba(6, 27, 42, 0.05);
}

.brand-word {
  color: var(--onedu-primary) !important;
}

.brand-word::before {
  display: none;
}

.brand-icon {
  color: var(--onedu-primary);
  flex: 0 0 auto;
  height: 1.45rem;
  width: 1.45rem;
}

.nav-link {
  color: #22364b;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--onedu-primary);
}

.portal-home {
  background:
    linear-gradient(180deg, #fbfefd 0%, #f3faf9 46%, #f8fbfb 100%);
  margin: -1.5rem calc(50% - 50vw) -1.5rem;
  overflow: hidden;
}

.portal-shell {
  margin: 0 auto;
  max-width: 1180px;
  padding-left: 1rem;
  padding-right: 1rem;
}

.portal-hero {
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.97) 0%, rgba(239, 249, 247, 0.94) 54%, rgba(255, 255, 255, 0.96) 100%);
  border-bottom: 1px solid rgba(8, 117, 111, 0.13);
  min-height: 540px;
  overflow: hidden;
  padding: 4rem 0 3.2rem;
  position: relative;
}

.portal-hero-bg {
  background-image:
    linear-gradient(rgba(8, 117, 111, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 117, 111, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  inset: 0;
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.16), rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.08));
  position: absolute;
}

.portal-hero::after {
  background:
    linear-gradient(110deg, transparent 0 64%, rgba(8, 117, 111, 0.08) 64% 65%, transparent 65%),
    linear-gradient(116deg, transparent 0 72%, rgba(216, 184, 79, 0.12) 72% 73%, transparent 73%);
  bottom: -4rem;
  content: "";
  height: 18rem;
  left: 0;
  position: absolute;
  right: 0;
}

.portal-hero-grid {
  align-items: center;
  display: grid;
  gap: 3rem;
  grid-template-columns: minmax(0, 1.02fr) minmax(330px, 0.88fr);
  position: relative;
  z-index: 1;
}

.portal-hero-copy {
  max-width: 690px;
}

.portal-hero-copy h1 {
  color: var(--onedu-ink);
  font-size: 4rem;
  font-weight: 950;
  letter-spacing: 0;
  line-height: 1.06;
  margin-bottom: 1.15rem;
  word-break: keep-all;
}

.portal-hero-copy h1 span {
  display: block;
}

.portal-hero-copy p {
  color: var(--onedu-ink-soft);
  font-size: 1.08rem;
  line-height: 1.8;
  margin-bottom: 1.9rem;
  max-width: 610px;
}

.portal-hero-points {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 1.8rem;
}

.portal-hero-points div {
  border-right: 1px solid rgba(8, 117, 111, 0.14);
  min-width: 0;
  padding: 0 0.7rem;
  text-align: center;
}

.portal-hero-points div:last-child {
  border-right: 0;
}

.portal-mini-icon {
  align-items: center;
  background: linear-gradient(135deg, #e8f7f5, #f8fcfb);
  border: 1px solid rgba(8, 117, 111, 0.16);
  border-radius: 16px;
  color: var(--onedu-primary);
  display: inline-flex;
  height: 2.35rem;
  justify-content: center;
  margin-bottom: 0.65rem;
  width: 2.35rem;
}

.portal-hero-points .portal-mini-icon {
  background: rgba(255, 255, 255, 0.68);
  border-color: rgba(8, 117, 111, 0.2);
  color: #0b6f6a;
  height: 4.1rem;
  margin-bottom: 0.8rem;
  width: 4.1rem;
}

.portal-benefit-strip .portal-mini-icon {
  height: 3.1rem;
  width: 3.1rem;
}

.portal-svg-icon {
  display: block;
  height: 72%;
  width: 72%;
}

.portal-hero-points .portal-svg-icon {
  height: 82%;
  width: 82%;
}

.portal-hero-points strong,
.portal-benefit-strip strong {
  color: var(--onedu-ink);
  display: block;
  font-weight: 900;
  margin-bottom: 0.25rem;
}

.portal-hero-points strong {
  font-size: 0.92rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.portal-hero-points small,
.portal-benefit-strip p {
  color: var(--onedu-muted);
  display: block;
  font-size: 0.83rem;
  line-height: 1.55;
  margin: 0;
}

.portal-hero-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.portal-hero-actions .btn {
  min-width: 8.25rem;
  padding: 0.74rem 1.2rem;
}

.portal-player-card {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(8, 117, 111, 0.14);
  border-radius: 16px;
  box-shadow: 0 28px 70px rgba(6, 27, 42, 0.13);
  padding: 0.85rem;
}

.portal-player-head {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  padding: 0.45rem 0.35rem 0.85rem;
}

.portal-player-head span,
.portal-section-title span {
  color: var(--onedu-primary);
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.portal-player-head strong {
  color: var(--onedu-ink);
  font-size: 0.9rem;
  font-weight: 900;
}

.portal-player-screen {
  aspect-ratio: 16 / 10.4;
  background:
    radial-gradient(circle at 74% 42%, rgba(31, 155, 148, 0.33), transparent 23%),
    linear-gradient(135deg, #073b42 0%, #052739 42%, #061827 100%);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.portal-player-screen::before {
  background:
    radial-gradient(circle at 30% 35%, rgba(45, 212, 191, 0.2), transparent 18%),
    radial-gradient(circle at 68% 42%, rgba(59, 130, 246, 0.18), transparent 24%);
  content: "";
  inset: -18%;
  position: absolute;
  transform: translate3d(-3%, -2%, 0);
  animation: portalAmbientVideo 9s ease-in-out infinite alternate;
}

.portal-player-live {
  background:
    linear-gradient(115deg, transparent 0 34%, rgba(36, 218, 202, 0.18) 35%, transparent 37%),
    linear-gradient(25deg, transparent 0 58%, rgba(120, 255, 244, 0.12) 59%, transparent 61%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 10px);
  inset: 0;
  opacity: 0.72;
  position: absolute;
}

.portal-player-wave {
  background:
    radial-gradient(circle at 10% 74%, rgba(255, 255, 255, 0.18) 0 1px, transparent 1.5px),
    radial-gradient(circle at 18% 64%, rgba(20, 184, 166, 0.48) 0 1px, transparent 1.5px),
    radial-gradient(circle at 27% 71%, rgba(20, 184, 166, 0.36) 0 1px, transparent 1.5px),
    radial-gradient(circle at 36% 61%, rgba(255, 255, 255, 0.16) 0 1px, transparent 1.5px),
    radial-gradient(circle at 48% 67%, rgba(20, 184, 166, 0.42) 0 1px, transparent 1.5px),
    linear-gradient(16deg, transparent 0 48%, rgba(74, 222, 210, 0.2) 48.5%, transparent 49.2%),
    linear-gradient(-18deg, transparent 0 42%, rgba(74, 222, 210, 0.12) 42.5%, transparent 43.2%);
  inset: 0;
  opacity: 0.7;
  position: absolute;
  transform: translateX(-6%);
  animation: portalSignalDrift 12s linear infinite;
}

.portal-player-scan {
  background: linear-gradient(90deg, transparent, rgba(245, 200, 75, 0.65), transparent);
  height: 2px;
  left: 0;
  opacity: 0.52;
  position: absolute;
  right: 0;
  top: 36%;
  transform: translateY(-3rem);
  animation: portalScanLine 5.2s ease-in-out infinite;
}

.portal-player-network {
  background-image:
    linear-gradient(135deg, transparent 0 48%, rgba(74, 222, 210, 0.18) 48% 49%, transparent 49%),
    linear-gradient(24deg, transparent 0 56%, rgba(74, 222, 210, 0.13) 56% 57%, transparent 57%);
  inset: 0;
  opacity: 0.55;
  position: absolute;
}

.portal-player-watermark {
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
  font-weight: 850;
  padding: 0.42rem 0.65rem;
  position: absolute;
  right: 1rem;
  top: 1rem;
  z-index: 2;
}

.portal-play-button {
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  display: flex;
  filter: drop-shadow(0 12px 20px rgba(0, 0, 0, 0.28));
  height: 4rem;
  justify-content: center;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 4rem;
  z-index: 2;
}

.portal-play-button span {
  border-bottom: 0.95rem solid transparent;
  border-left: 1.38rem solid #fff;
  border-top: 0.95rem solid transparent;
  display: block;
  height: 0;
  margin-left: 0.22rem;
  width: 0;
}

.portal-player-controls {
  align-items: center;
  bottom: 1.2rem;
  color: #fff;
  display: grid;
  font-size: 0.75rem;
  font-weight: 850;
  gap: 0.65rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  left: 1.25rem;
  position: absolute;
  right: 1.25rem;
  z-index: 2;
}

.portal-player-controls div {
  background: rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  height: 0.28rem;
  overflow: hidden;
}

.portal-player-controls i {
  animation: portalProgressLoop 8s ease-in-out infinite;
  background: linear-gradient(90deg, #f5c84b, #fff2a8);
  display: block;
  height: 100%;
  width: 39%;
}

@keyframes portalAmbientVideo {
  from {
    transform: translate3d(-4%, -2%, 0) scale(1);
  }
  to {
    transform: translate3d(3%, 4%, 0) scale(1.08);
  }
}

@keyframes portalSignalDrift {
  from {
    transform: translateX(-8%);
  }
  to {
    transform: translateX(8%);
  }
}

@keyframes portalScanLine {
  0%,
  100% {
    opacity: 0.14;
    transform: translateY(-4.8rem);
  }
  50% {
    opacity: 0.72;
    transform: translateY(4.8rem);
  }
}

@keyframes portalProgressLoop {
  0%,
  100% {
    width: 32%;
  }
  50% {
    width: 76%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .portal-player-screen::before,
  .portal-player-wave,
  .portal-player-scan,
  .portal-player-controls i {
    animation: none;
  }
}

.portal-player-stats {
  background: #fff;
  border: 1px solid rgba(8, 117, 111, 0.12);
  border-radius: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0.85rem 0 0;
  overflow: hidden;
}

.portal-player-stats div {
  border-right: 1px solid rgba(8, 117, 111, 0.12);
  padding: 1rem;
}

.portal-player-stats div:last-child {
  border-right: 0;
}

.portal-player-stats dt {
  color: var(--onedu-muted);
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.portal-player-stats dd {
  color: var(--onedu-ink);
  font-size: 1.45rem;
  font-weight: 950;
  margin: 0;
}

.portal-category-section,
.portal-main-grid,
.portal-benefit-strip {
  margin-top: 2.15rem;
}

.portal-category-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.portal-category-card {
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(8, 117, 111, 0.13);
  border-radius: 12px;
  box-shadow: 0 14px 34px rgba(6, 27, 42, 0.06);
  display: grid;
  gap: 0.95rem;
  grid-template-columns: 3.7rem minmax(0, 1fr);
  min-height: 8rem;
  padding: 1.15rem;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.portal-category-card:hover,
.portal-category-card:focus-within {
  border-color: rgba(8, 117, 111, 0.38);
  box-shadow: 0 20px 44px rgba(6, 27, 42, 0.1);
  transform: translateY(-3px);
}

.portal-category-icon {
  align-items: center;
  background: linear-gradient(135deg, var(--onedu-primary), #0b4c59);
  border-radius: 10px;
  color: #fff;
  display: inline-flex;
  font-size: 1.18rem;
  font-weight: 950;
  height: 3.7rem;
  justify-content: center;
  width: 3.7rem;
}

.portal-category-card h3 {
  color: var(--onedu-ink);
  font-size: 1.03rem;
  font-weight: 900;
  margin-bottom: 0.3rem;
}

.portal-category-card p {
  color: var(--onedu-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0;
}

.portal-main-grid {
  align-items: start;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.82fr);
}

.portal-section-title {
  align-items: end;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}

.portal-section-title h2 {
  color: var(--onedu-ink);
  font-size: 1.32rem;
  font-weight: 950;
  margin: 0.25rem 0 0;
}

.portal-section-title h2::before {
  background: linear-gradient(180deg, #0a9c92, var(--onedu-primary));
  border-radius: 999px;
  content: "";
  display: inline-block;
  height: 1.15rem;
  margin-right: 0.55rem;
  vertical-align: -0.08rem;
  width: 0.28rem;
}

.portal-program-list {
  display: grid;
  gap: 1rem;
}

.portal-program-card {
  background: #fff;
  border: 1px solid rgba(8, 117, 111, 0.14);
  border-radius: 14px;
  box-shadow: 0 18px 42px rgba(6, 27, 42, 0.08);
  display: grid;
  grid-template-columns: minmax(220px, 0.78fr) minmax(0, 1fr);
  overflow: hidden;
}

.portal-program-media {
  align-items: center;
  background:
    linear-gradient(135deg, #fbfefd, #edf7f6);
  display: flex;
  justify-content: center;
  min-height: 260px;
  overflow: hidden;
}

.portal-program-media img {
  display: block;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  width: 100%;
}

.portal-program-placeholder {
  align-content: end;
  background:
    linear-gradient(145deg, rgba(8, 117, 111, 0.92), rgba(6, 27, 42, 0.98)),
    repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 28px);
  color: #fff;
  display: grid;
  height: 100%;
  min-height: 260px;
  padding: 1.45rem;
  width: 100%;
}

.portal-program-placeholder span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.portal-program-placeholder strong {
  font-size: 1.8rem;
  font-weight: 950;
  line-height: 1.12;
  margin-top: 0.45rem;
}

.portal-program-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.45rem;
}

.portal-program-head {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}

.portal-program-head > span:first-child {
  color: var(--onedu-primary);
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.portal-program-body h3 {
  color: var(--onedu-ink);
  font-size: 1.55rem;
  font-weight: 950;
  line-height: 1.25;
  margin-bottom: 0.7rem;
  overflow-wrap: anywhere;
}

.portal-program-body p {
  color: var(--onedu-ink-soft);
  display: -webkit-box;
  line-height: 1.65;
  margin-bottom: 1.1rem;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.portal-program-meta {
  display: grid;
  gap: 0.55rem;
  margin-bottom: 1.2rem;
}

.portal-program-meta div {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.portal-program-meta dt {
  color: var(--onedu-muted);
  font-weight: 800;
}

.portal-program-meta dd {
  color: var(--onedu-ink);
  font-weight: 850;
  margin: 0;
  text-align: right;
}

.portal-program-actions {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
  margin-top: auto;
}

.portal-workflow {
  min-width: 0;
}

.portal-timeline {
  display: grid;
  gap: 0.72rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.portal-timeline li {
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(8, 117, 111, 0.13);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(6, 27, 42, 0.05);
  display: grid;
  gap: 0.9rem;
  grid-template-columns: 2.8rem 4rem minmax(0, 1fr);
  padding: 1rem;
  position: relative;
}

.portal-step-number {
  align-items: center;
  background: var(--onedu-primary);
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  font-size: 0.92rem;
  font-weight: 950;
  height: 2.5rem;
  justify-content: center;
  width: 2.5rem;
}

.portal-step-icon {
  align-items: center;
  background: linear-gradient(135deg, #f4fbfa, #ffffff);
  border: 1px solid rgba(8, 117, 111, 0.14);
  border-radius: 999px;
  color: #0b6f6a;
  display: inline-flex;
  height: 3.75rem;
  justify-content: center;
  width: 3.75rem;
}

.portal-step-icon .portal-svg-icon {
  height: 72%;
  width: 72%;
}

.portal-timeline h3 {
  color: var(--onedu-ink);
  font-size: 1rem;
  font-weight: 900;
  margin-bottom: 0.25rem;
}

.portal-timeline p {
  color: var(--onedu-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0;
}

.portal-benefit-strip {
  background:
    linear-gradient(135deg, rgba(232, 247, 245, 0.9), rgba(255, 255, 255, 0.96));
  border: 1px solid rgba(8, 117, 111, 0.14);
  border-radius: 16px;
  box-shadow: 0 24px 58px rgba(6, 27, 42, 0.08);
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 2.4rem;
  padding: 1rem;
}

.portal-benefit-strip div {
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(8, 117, 111, 0.1);
  border-radius: 14px;
  min-width: 0;
  padding: 1.15rem 1rem;
  text-align: center;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.portal-benefit-strip div:hover {
  border-color: rgba(8, 117, 111, 0.26);
  box-shadow: 0 18px 34px rgba(6, 27, 42, 0.08);
  transform: translateY(-2px);
}

.portal-benefit-strip strong {
  font-size: 0.98rem;
}

.portal-benefit-strip .portal-mini-icon {
  background: linear-gradient(135deg, #dff4f1, #ffffff);
  box-shadow: inset 0 0 0 6px rgba(8, 117, 111, 0.04);
  margin-bottom: 0.75rem;
}

.portal-footer {
  background:
    linear-gradient(135deg, #061b2a 0%, #052b36 48%, #064f4d 100%);
  color: rgba(255, 255, 255, 0.82);
  margin-top: 2.2rem;
  padding: 2.1rem 0;
}

.portal-footer-inner {
  align-items: center;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 0.55fr) minmax(0, 1.1fr);
}

.portal-footer-brand {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.portal-footer-brand img {
  display: block;
  max-height: 4rem;
  max-width: min(14rem, 100%);
  object-fit: contain;
}

.portal-footer strong {
  color: #fff;
  display: block;
  font-size: 1rem;
  font-weight: 950;
}

.portal-footer span,
.portal-footer a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  text-decoration: none;
}

.portal-footer a:hover,
.portal-footer a:focus {
  color: #fff;
  text-decoration: underline;
}

.portal-footer address {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  font-style: normal;
  gap: 0.55rem 1.2rem;
  justify-content: flex-end;
  margin: 0;
}

@media (max-width: 991.98px) {
  .portal-hero {
    padding: 3rem 0 2.5rem;
  }

  .portal-hero-grid,
  .portal-main-grid {
    grid-template-columns: 1fr;
  }

  .portal-hero-copy h1 {
    font-size: 3rem;
  }

  .portal-player-card {
    max-width: 620px;
  }

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

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

  .portal-footer address {
    justify-content: flex-start;
  }
}

@media (max-width: 767.98px) {
  .portal-hero-copy h1 {
    font-size: 2.25rem;
  }

  .portal-hero-points,
  .portal-category-grid,
  .portal-benefit-strip,
  .portal-player-stats,
  .portal-program-card {
    grid-template-columns: 1fr;
  }

  .portal-hero-points div,
  .portal-player-stats div {
    border-bottom: 1px solid rgba(8, 117, 111, 0.13);
    border-right: 0;
  }

  .portal-hero-points div:last-child,
  .portal-player-stats div:last-child {
    border-bottom: 0;
  }

  .portal-category-card {
    min-height: 0;
  }

  .portal-program-media,
  .portal-program-placeholder {
    min-height: 210px;
  }

  .portal-program-actions {
    grid-template-columns: 1fr;
  }

  .portal-timeline li {
    grid-template-columns: 2.65rem 3.4rem minmax(0, 1fr);
    gap: 0.75rem;
  }

  .portal-step-icon {
    height: 3.25rem;
    width: 3.25rem;
  }
}

@media (max-width: 575.98px) {
  .portal-home {
    margin-left: -0.75rem;
    margin-right: -0.75rem;
  }

  .portal-hero {
    padding-top: 2.4rem;
  }

  .portal-hero-copy p {
    font-size: 1rem;
  }

  .portal-hero-actions .btn {
    width: 100%;
  }

  .portal-player-head,
  .portal-section-title {
    align-items: stretch;
    flex-direction: column;
  }

  .portal-player-watermark {
    font-size: 0.68rem;
    left: 0.85rem;
    right: auto;
    top: 0.85rem;
  }

  .portal-player-controls {
    left: 0.9rem;
    right: 0.9rem;
  }

  .portal-timeline li {
    align-items: start;
    grid-template-columns: 2.55rem minmax(0, 1fr);
  }

  .portal-step-icon {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
  }

  .portal-timeline li > div {
    grid-column: 1 / -1;
  }
}