html {
  scroll-behavior: smooth;
}

.page--offline-class {
  background: #f8fafc;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

.ocs-main {
  padding: calc(var(--header-h) + 1rem) 0 2.5rem;
}

.ocs-sidebar-backdrop {
  display: none;
}

.ocs-header-brand-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
}

.ocs-header-sidebar-trigger {
  display: none;
}

.ocs-layout {
  display: grid;
  gap: 1.25rem;
}

.ocs-sidebar {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.ocs-sidebar__panel {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px rgb(15 23 42 / 0.035);
  overflow: hidden;
}

.ocs-sidebar__head {
  padding: 1.15rem 1.15rem 1rem;
  border-bottom: 1px solid var(--gray-100);
}

.ocs-sidebar__head-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.ocs-sidebar__back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-700);
  text-decoration: none;
}

.ocs-sidebar__close {
  display: none;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  margin: -0.4rem -0.35rem 0 0;
  padding: 0;
  border: 1px solid var(--gray-200);
  border-radius: 0.45rem;
  background: var(--white);
  color: var(--gray-600);
  cursor: pointer;
}

.ocs-sidebar__close:hover {
  border-color: var(--gray-300);
  color: var(--navy-800);
}

.ocs-sidebar__back:hover {
  color: var(--green-700);
  text-decoration: underline;
}

.ocs-sidebar__course {
  margin: 0 0 0.65rem;
  max-width: 13rem;
  font-size: 1.075rem;
  font-weight: 800;
  color: var(--navy-800);
  line-height: 1.45;
}

.ocs-sidebar__subject {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-600);
}

.ocs-sidebar__progress-text {
  margin: 0 0 0.45rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-600);
}

.ocs-progress {
  height: 0.35rem;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  overflow: hidden;
}

.ocs-progress__bar {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #16a34a 0%, #22c55e 100%);
}

.ocs-sidebar__section-title {
  margin: 0;
  padding: 1rem 1.15rem 0.45rem;
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--navy-800);
}

.ocs-sidebar__view-all {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: calc(100% - 2rem);
  margin: 0.5rem 1rem 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.4rem;
  background: var(--white);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--navy-800);
  cursor: pointer;
}

.ocs-sidebar__view-all:hover {
  border-color: var(--green-600);
  color: var(--green-700);
}

.ocs-lessons.is-collapsed .ocs-lesson--overflow {
  display: none;
}

.ocs-lesson.is-complete .ocs-lesson__num {
  background: var(--white);
  color: var(--gray-500);
}

.ocs-lesson.is-complete .ocs-lesson__status {
  color: #16a34a;
}

.ocs-overview__heading {
  margin: 1.25rem 0 0.65rem;
  font-size: 1rem;
  font-weight: 800;
  color: var(--navy-800);
}

.ocs-overview__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.ocs-overview__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--gray-700);
}

.ocs-overview__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green-600);
  font-weight: 800;
}

.ocs-plans {
  scroll-margin-top: calc(var(--header-h, 4.75rem) + 1rem);
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: 0.85rem;
  background: #f8fafc;
  border: 1px solid var(--gray-200);
}

.ocs-plans__title {
  margin: 0 0 1.25rem;
  font-size: 1.25rem;
  font-weight: 800;
  text-align: center;
  color: var(--navy-800);
}

.ocs-plans__grid {
  display: grid;
  gap: 1.15rem;
  margin: 0;
  padding: 0.5rem 0 0;
  list-style: none;
}

@media (min-width: 768px) {
  .ocs-plans__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }
}

.ocs-plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  border-radius: 0.75rem;
  border: 1px solid var(--gray-200);
  background: var(--white);
  box-shadow: 0 5px 16px rgb(15 23 42 / 0.04);
}

.ocs-plan--featured {
  border: 2px solid #22c55e;
  background: linear-gradient(160deg, #f0fdf4 0%, #ffffff 48%);
  box-shadow: 0 14px 32px rgb(22 163 74 / 0.14);
}

.ocs-plan__badge {
  position: absolute;
  top: -0.8rem;
  left: 1rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  background: #16a34a;
  color: var(--white);
  box-shadow: 0 5px 12px rgb(22 163 74 / 0.25);
  font-size: 0.625rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}

.ocs-plan__badge::before {
  content: "★";
  font-size: 0.65rem;
}

.ocs-plan__name {
  margin: 0.5rem 0 0.25rem;
  font-size: 1rem;
  font-weight: 800;
  color: var(--navy-800);
}

.ocs-plan__price {
  margin: 0 0 0.85rem;
  font-size: 1.75rem;
  font-weight: 800;
  color: #15803d;
}

.ocs-plan__price-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.ocs-plan__price-row .ocs-plan__price {
  margin: 0;
}

.ocs-plan__original-price {
  font-size: 0.75rem;
  color: var(--gray-400);
}

.ocs-plan__features {
  flex: 1;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

.ocs-plan__features li {
  font-size: 0.8125rem;
  color: var(--gray-700);
}

.ocs-plan__features li::before {
  content: "✓ ";
  color: #16a34a;
  font-weight: 800;
}

.ocs-trust {
  max-width: 72rem;
  margin: 1.5rem auto 0;
  padding: 0 1rem;
}

.ocs-trust__list {
  display: grid;
  gap: 0.75rem 1rem;
  margin: 0;
  padding: 1rem 1.25rem;
  list-style: none;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--gray-200);
}

@media (min-width: 640px) {
  .ocs-trust__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .ocs-trust__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.ocs-trust__list li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-700);
}

.ocs-sidebar__progress {
  margin: 0;
  font-size: 0.75rem;
  color: var(--gray-500);
}

.ocs-sidebar__empty {
  margin: 0;
  padding: 1rem;
  font-size: 0.875rem;
  color: var(--gray-600);
}

.ocs-lessons {
  list-style: none;
  margin: 0;
  padding: 0.25rem 0.65rem;
  max-height: 31rem;
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--gray-300) transparent;
}

.ocs-lesson__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.6rem;
  align-items: center;
  min-height: 3.25rem;
  padding: 0.6rem 0.55rem;
  border-radius: 0.45rem;
  color: inherit;
  text-decoration: none;
  transition: background 0.18s ease;
}

.ocs-lesson__link--locked {
  opacity: 0.82;
}

.ocs-lesson__link:hover {
  background: var(--gray-50);
}

.ocs-lesson.is-active .ocs-lesson__link {
  background: #e9f9ef;
}

.ocs-lesson__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem;
  height: 1.35rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.35rem;
  background: var(--white);
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--gray-500);
}

.ocs-lesson.is-active .ocs-lesson__num {
  border-color: #bbf7d0;
  background: #f0fdf4;
  color: var(--green-700);
}

.ocs-lesson__body {
  min-width: 0;
}

.ocs-lesson__title {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--navy-800);
  line-height: 1.35;
}

.ocs-lesson__meta {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.625rem;
  color: var(--gray-500);
}

.ocs-lesson__badge {
  display: block;
  margin-top: 0.1rem;
  padding: 0;
  background: transparent;
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.ocs-lesson__badge--free {
  display: none;
}

.ocs-lesson__badge--premium {
  color: var(--gray-500);
}

.ocs-lesson__status {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green-600);
}

.ocs-lesson__status .icon {
  width: 1rem;
  height: 1rem;
}

.ocs-lesson__lock-image {
  display: block;
  width: 1.125rem;
  height: 1.125rem;
  object-fit: contain;
}

.ocs-lesson.is-locked .ocs-lesson__status {
  color: var(--gray-400);
}

.ocs-sidebar__community {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 0.65rem;
  padding: 1rem;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: 0 4px 16px rgb(15 23 42 / 0.035);
}

.ocs-sidebar__community-icon {
  grid-row: 1;
  width: 1.5rem;
  height: 1.5rem;
  margin-top: 0.1rem;
  color: #2563eb;
}

.ocs-sidebar__community-copy p {
  margin: 0;
  font-size: 0.75rem;
  color: var(--gray-700);
}

.ocs-sidebar__community-copy .ocs-sidebar__community-title {
  margin-bottom: 0.15rem;
  font-weight: 700;
  color: var(--navy-800);
}

.ocs-sidebar__community-link {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--navy-800);
  text-decoration: none;
}

.ocs-sidebar__community-link:hover {
  border-color: var(--green-600);
  color: var(--green-700);
}

.ocs-content {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 0 1.5rem 0 0;
}

.ocs-content > * {
  max-width: 100%;
}

.ocs-empty {
  padding: 2rem 1.25rem;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
}

.ocs-lesson-head {
  margin-bottom: 1rem;
}

.ocs-lesson-head__title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
}

.ocs-lesson-head__title {
  margin: 0;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  color: var(--navy-800);
}

.ocs-lesson-head__badge {
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background: #dcfce7;
  color: #15803d;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.ocs-lesson-head__load-hint {
  margin: 0.3rem 0 0;
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.ocs-lesson-head__load-hint-count {
  color: var(--navy-900, #0f172a);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.ocs-lesson-head__load-hint[hidden] {
  display: none !important;
}

.ocs-lesson-head__meta {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.ocs-player {
  position: relative;
  width: min(100%, 115vh);
  max-width: 100%;
  margin-inline: auto;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--gray-200);
  border-radius: 0.75rem;
  overflow: hidden;
  background: #0f172a;
  box-shadow: 0 16px 40px rgb(15 23 42 / 0.12);
}

.ocs-player__iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.ocs-player__video {
  display: block;
  width: 100%;
  height: 100%;
  background: #000;
  object-fit: contain;
}

.ocs-player__error {
  display: grid;
  height: 100%;
  padding: 1.5rem;
  color: #fff;
  text-align: center;
  place-items: center;
}

.ocs-player__error p {
  margin: 0;
}

.ocs-player__brand-mask {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 5.75rem;
  height: 2.85rem;
  background: #0f0f0f;
  pointer-events: none;
  z-index: 1;
}

.ocs-player__external {
  margin: 0.65rem 0 0;
  text-align: right;
}

.ocs-player__external a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--gray-600);
  text-decoration: none;
}

.ocs-player__external a:hover {
  color: var(--green-700);
  text-decoration: underline;
}

.ocs-player--drive .ocs-player__iframe {
  background: #111;
}

.ocs-drive-notice {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: #fffbeb;
  border: 1px solid #fde68a;
  font-size: 0.8125rem;
  color: var(--gray-700);
}

.ocs-drive-notice p {
  margin: 0 0 0.45rem;
  color: var(--navy-800);
}

.ocs-drive-notice ul {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.25rem;
}

.ocs-player__lock {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  height: 100%;
  padding: 1.5rem;
  text-align: center;
  color: var(--white);
}

.ocs-player__lock-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-full);
  background: rgb(255 255 255 / 0.12);
  color: #fde68a;
}

.ocs-player__lock h3 {
  margin: 0;
  font-size: 1.25rem;
}

.ocs-player__lock p {
  margin: 0;
  max-width: 24rem;
  color: rgb(255 255 255 / 0.82);
}

.ocs-tabs {
  display: flex;
  gap: 0;
  margin: 1.25rem 0 0.85rem;
  border-bottom: 1px solid var(--gray-200);
  overflow-x: auto;
  scrollbar-width: none;
}

.ocs-tabs::-webkit-scrollbar {
  display: none;
}

.ocs-tabs__tab {
  position: relative;
  flex: 0 0 auto;
  margin: 0;
  padding: 0.8rem 1.2rem;
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #64748b;
  cursor: pointer;
  transition: color 0.18s ease, background 0.18s ease;
}

.ocs-tabs__tab::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: #16a34a;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.18s ease;
}

.ocs-tabs__tab:hover {
  color: var(--navy-800);
  background: #f8fafc;
}

.ocs-tabs__tab:focus-visible {
  outline: 2px solid #16a34a;
  outline-offset: 2px;
  border-radius: 0.2rem;
}

.ocs-tabs__tab.is-active {
  color: #15803d;
  font-weight: 800;
}

.ocs-tabs__tab.is-active::after {
  transform: scaleX(1);
}

.ocs-tab-panel {
  padding: 0 0 1.5rem;
}

.ocs-tab-panel[hidden] {
  display: none;
}

.ocs-tab-panel:focus {
  outline: none;
}

.ocs-overview {
  min-height: 8rem;
}

.ocs-overview__desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--gray-700);
}

.ocs-tab-panel__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.ocs-tab-panel__head h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--navy-800);
}

.ocs-tab-panel__eyebrow {
  margin: 0 0 0.25rem;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #15803d;
}

.ocs-tab-panel__badge {
  flex: 0 0 auto;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-full);
  background: #ecfdf5;
  font-size: 0.6875rem;
  font-weight: 700;
  color: #15803d;
}

.ocs-tab-panel__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.55rem;
}

.ocs-add-note-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  min-height: 2.25rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid #16a34a;
  border-radius: 0.5rem;
  background: #16a34a;
  color: var(--white);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.ocs-add-note-button:hover {
  background: #15803d;
  border-color: #15803d;
}

.ocs-add-note-button:disabled {
  border-color: var(--gray-300, #cbd5e1);
  background: var(--gray-200);
  color: var(--gray-500);
  cursor: not-allowed;
}

.ocs-add-note-button span[aria-hidden="true"] {
  font-size: 1rem;
  line-height: 1;
}

.ocs-user-notes {
  margin-bottom: 1rem;
  padding: 0.9rem;
  border: 1px dashed #bbf7d0;
  border-radius: 0.65rem;
  background: #f8fffa;
}

.ocs-user-notes__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.ocs-user-notes__head h4 {
  margin: 0;
  font-size: 0.875rem;
  color: var(--navy-800);
}

.ocs-user-notes__head span {
  font-size: 0.6875rem;
  font-weight: 700;
  color: #15803d;
}

.ocs-user-notes__empty {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.ocs-user-notes__empty[hidden] {
  display: none;
}

.ocs-user-notes__list {
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ocs-user-note {
  position: relative;
  padding: 0.75rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.55rem;
  background: var(--white);
}

.ocs-user-note__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.ocs-user-note h5 {
  margin: 0 0 0.25rem;
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 0.8125rem;
  color: var(--navy-800);
}

.ocs-user-note__options {
  position: relative;
  flex: 0 0 auto;
}

.ocs-user-note__options-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  padding: 0;
  border: 0;
  border-radius: 0.4rem;
  background: transparent;
  color: var(--gray-600);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.ocs-user-note__options-button:hover,
.ocs-user-note__options-button[aria-expanded="true"] {
  background: var(--gray-100);
  color: var(--navy-800);
}

.ocs-user-note__menu {
  position: absolute;
  top: calc(100% + 0.25rem);
  right: 0;
  z-index: 5;
  min-width: 7rem;
  padding: 0.3rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  background: var(--white);
  box-shadow: 0 12px 28px rgb(15 23 42 / 0.14);
}

.ocs-user-note__menu[hidden] {
  display: none;
}

.ocs-user-note__menu button {
  display: block;
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 0;
  border-radius: 0.35rem;
  background: transparent;
  color: var(--gray-700);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.ocs-user-note__menu button:hover {
  background: var(--gray-50);
}

.ocs-user-note__menu .ocs-user-note__delete {
  color: #dc2626;
}

.ocs-user-note__menu .ocs-user-note__delete:hover {
  background: #fef2f2;
}

.ocs-user-note p {
  margin: 0 0 0.45rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--gray-700);
}

.ocs-user-note time {
  display: block;
  font-size: 0.625rem;
  color: var(--gray-500);
}

.ocs-notes__grid {
  display: grid;
  gap: 0.65rem;
}

.ocs-note-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.85rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.65rem;
  background: var(--white);
}

.ocs-note-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background: #ecfdf5;
  font-size: 0.6875rem;
  font-weight: 800;
  color: var(--green-700);
}

.ocs-note-card h4 {
  margin: 0 0 0.2rem;
  font-size: 0.875rem;
  color: var(--navy-800);
}

.ocs-note-card p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--gray-600);
}

.ocs-notes__tip {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin-top: 0.75rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid #fde68a;
  border-radius: 0.65rem;
  background: #fffbeb;
  color: #92400e;
}

.ocs-notes__tip .icon {
  flex: 0 0 auto;
  margin-top: 0.1rem;
}

.ocs-notes__tip p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.5;
}

body.ocs-note-modal-open {
  overflow: hidden;
}

.ocs-note-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.ocs-note-modal[hidden] {
  display: none;
}

.ocs-note-modal__backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: rgb(15 23 42 / 0.58);
  cursor: default;
}

.ocs-note-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(32rem, 100%);
  max-height: calc(100dvh - 2rem);
  overflow-y: auto;
  border: 1px solid var(--gray-200);
  border-radius: 0.85rem;
  background: var(--white);
  box-shadow: 0 24px 70px rgb(15 23 42 / 0.28);
}

.ocs-note-modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.2rem;
  border-bottom: 1px solid var(--gray-200);
}

.ocs-note-modal__head p {
  margin: 0 0 0.2rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #15803d;
}

.ocs-note-modal__head h2 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--navy-800);
}

.ocs-note-modal__close {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--gray-200);
  border-radius: 0.45rem;
  background: var(--white);
  color: var(--gray-600);
  cursor: pointer;
}

.ocs-note-modal__close:hover {
  background: var(--gray-50);
  color: var(--navy-800);
}

.ocs-note-form {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
}

.ocs-note-form__field {
  display: grid;
  gap: 0.4rem;
}

.ocs-note-form__field label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--navy-800);
}

.ocs-note-form__field input,
.ocs-note-form__field textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--gray-300, #cbd5e1);
  border-radius: 0.5rem;
  background: var(--white);
  color: var(--gray-900);
  font: inherit;
  font-size: 0.875rem;
}

.ocs-note-form__field textarea {
  min-height: 9rem;
  resize: vertical;
  line-height: 1.5;
}

.ocs-note-form__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.6875rem;
  color: var(--gray-500);
}

.ocs-note-form__meta span:last-child {
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
}

.ocs-note-form__field input:focus,
.ocs-note-form__field textarea:focus {
  outline: none;
  border-color: #16a34a;
  box-shadow: 0 0 0 3px rgb(22 163 74 / 0.14);
}

.ocs-note-form__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.65rem;
  padding-top: 0.15rem;
}

.ocs-note-form__cancel,
.ocs-note-form__save {
  min-height: 2.5rem;
  padding: 0.6rem 1rem;
  border-radius: 0.5rem;
  font: inherit;
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
}

.ocs-note-form__cancel {
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-700);
}

.ocs-note-form__save {
  border: 1px solid #16a34a;
  background: #16a34a;
  color: var(--white);
}

.ocs-note-form__cancel:hover {
  background: var(--gray-50);
}

.ocs-note-form__save:hover {
  background: #15803d;
  border-color: #15803d;
}

.ocs-resources__list {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ocs-resource-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.65rem;
  background: var(--white);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.ocs-resource-card:hover {
  border-color: #bbf7d0;
  box-shadow: 0 8px 20px rgb(15 23 42 / 0.07);
  transform: translateY(-1px);
}

.ocs-resource-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.6rem;
  background: #eff6ff;
  color: #2563eb;
}

.ocs-resource-card--pdf .ocs-resource-card__icon {
  background: #fef2f2;
  color: #dc2626;
}

.ocs-resource-card--mock-test .ocs-resource-card__icon {
  background: #f0fdf4;
  color: #16a34a;
}

.ocs-resource-card__copy {
  min-width: 0;
}

.ocs-resource-card__copy strong,
.ocs-resource-card__copy small {
  display: block;
}

.ocs-resource-card__copy strong {
  font-size: 0.875rem;
  color: var(--navy-800);
}

.ocs-resource-card__copy a {
  color: inherit;
  text-decoration: none;
}

.ocs-resource-card__copy a:hover {
  color: var(--green-700);
  text-decoration: underline;
}

.ocs-resource-card__copy small {
  margin-top: 0.15rem;
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--gray-500);
}

.ocs-resource-card__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.4rem;
}

.ocs-resource-card__actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  min-height: 2rem;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.45rem;
  background: var(--white);
  color: var(--gray-700);
  font-size: 0.68rem;
  font-weight: 800;
  text-decoration: none;
}

.ocs-resource-card__actions a:hover {
  border-color: #16a34a;
  color: #15803d;
}

.ocs-resource-card__actions .ocs-resource-card__primary-action {
  border-color: #16a34a;
  background: #16a34a;
  color: var(--white);
}

.ocs-resource-card__actions .ocs-resource-card__primary-action:hover {
  border-color: #15803d;
  background: #15803d;
  color: var(--white);
}

.ocs-resources__empty {
  margin: 0;
  padding: 1.25rem;
  border: 1px dashed var(--gray-300);
  border-radius: 0.75rem;
  color: var(--gray-500);
  font-size: 0.82rem;
  text-align: center;
}

.ocs-upgrade {
  display: grid;
  scroll-margin-top: calc(var(--header-h, 4.75rem) + 1rem);
  gap: 1.1rem;
  margin-top: 1.5rem;
  padding: 1.25rem;
  border-radius: 0.75rem;
  background: linear-gradient(115deg, #fffdf4 0%, #fff9e8 58%, #fff7df 100%);
  border: 1px solid #fde68a;
  box-shadow: 0 8px 24px rgb(146 64 14 / 0.06);
}

@media (min-width: 768px) {
  .ocs-upgrade {
    grid-template-columns: auto minmax(0, 1fr) minmax(13.5rem, 16rem);
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
  }
}

.ocs-upgrade__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-full);
  background: linear-gradient(145deg, #fde68a, #fbbf24);
  box-shadow: 0 8px 18px rgb(245 158 11 / 0.2);
}

.ocs-upgrade__icon img {
  width: 2.25rem;
  height: 2.25rem;
  object-fit: contain;
}

.ocs-upgrade__copy h3 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  line-height: 1.35;
  color: var(--navy-800);
}

.ocs-upgrade__copy p {
  margin: 0 0 0.65rem;
  font-size: 0.875rem;
  color: var(--gray-700);
}

.ocs-upgrade__benefits {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.4rem;
}

.ocs-upgrade__benefits li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8125rem;
  color: var(--gray-700);
}

.ocs-upgrade__benefits .icon {
  flex: 0 0 auto;
  width: 0.9rem;
  height: 0.9rem;
  padding: 0.08rem;
  border: 1px solid #86efac;
  border-radius: 0.2rem;
  color: #16a34a;
}

.ocs-upgrade__card {
  min-width: 0;
  padding: 0;
  overflow: hidden;
  border-radius: 0.7rem;
  background: var(--white);
  border: 1px solid #fde68a;
  box-shadow: 0 10px 24px rgb(146 64 14 / 0.08);
}

.ocs-upgrade__card-head {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.75rem 0.9rem;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  font-size: 0.875rem;
  font-weight: 800;
  color: #111827;
}

.ocs-upgrade__crown {
  width: 1.1rem;
  height: 1.1rem;
  fill: currentColor;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ocs-upgrade__card-body {
  padding: 1rem;
  text-align: center;
}

.ocs-upgrade__starting {
  margin: 0 0 0.2rem;
  font-size: 0.75rem;
  color: var(--gray-600);
}

.ocs-upgrade__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.55rem;
  margin: 0;
}

.ocs-upgrade__price strong {
  font-size: 1.7rem;
  line-height: 1.2;
  color: #111827;
}

.ocs-upgrade__price s {
  font-size: 0.8rem;
  color: var(--gray-400);
}

.ocs-upgrade__note {
  margin: 0.45rem 0 0.75rem;
  font-size: 0.6875rem;
  color: var(--gray-500);
}

.ocs-upgrade__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #2563eb;
  text-decoration: none;
}

.ocs-upgrade__link:hover {
  text-decoration: underline;
}

.btn--block {
  display: block;
  width: 100%;
  text-align: center;
}

@media (min-width: 992px) {
  .ocs-layout {
    display: block;
  }

  .ocs-sidebar {
    position: fixed;
    inset: var(--header-h, 4.75rem) auto 0 0;
    z-index: 35;
    display: block;
    width: 19rem;
    padding: 1rem 0.75rem;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: var(--gray-300) transparent;
    background: #f8fafc;
    border-right: 1px solid var(--gray-200);
  }

  .ocs-sidebar__panel {
    border-radius: 0.65rem;
  }

  .ocs-sidebar__community {
    margin-top: 1rem;
    margin-bottom: 1rem;
  }

  .ocs-lessons {
    max-height: none;
    overflow: visible;
  }

  .ocs-content {
    width: auto;
    margin-left: 20.5rem;
    padding-right: 1.5rem;
  }

  .ocs-trust {
    max-width: none;
    margin-right: 0;
    margin-left: 20.5rem;
    padding-right: 1.5rem;
    padding-left: 0;
  }

  .page--offline-class .site-footer {
    margin-left: 19rem;
  }
}

@media (max-width: 991px) {
  body.ocs-sidebar-open {
    overflow: hidden;
  }

  .ocs-header-sidebar-trigger {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--navy-800);
    cursor: pointer;
  }

  .ocs-header-sidebar-trigger:hover {
    border-color: var(--green-600);
    color: var(--green-700);
  }

  .ocs-sidebar-backdrop {
    position: fixed;
    inset: var(--header-h, 4.75rem) 0 0;
    z-index: 40;
    background: rgb(15 23 42 / 0.5);
    opacity: 0;
    transition: opacity 0.22s ease;
  }

  body.ocs-sidebar-open .ocs-sidebar-backdrop {
    display: block;
    opacity: 1;
  }

  .ocs-layout {
    display: block;
  }

  .ocs-content {
    padding-right: clamp(0.75rem, 3vw, 1.25rem);
    padding-left: clamp(0.75rem, 3vw, 1.25rem);
  }

  .ocs-sidebar {
    position: fixed;
    inset: var(--header-h, 4.75rem) auto 0 0;
    z-index: 45;
    display: block;
    width: 100%;
    padding: 0.85rem;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: #f8fafc;
    box-shadow: 18px 0 40px rgb(15 23 42 / 0.18);
    transform: translateX(-105%);
    transition: transform 0.25s ease;
  }

  body.ocs-sidebar-open .ocs-sidebar {
    transform: translateX(0);
  }

  .ocs-sidebar__close {
    display: inline-flex;
  }

  .ocs-sidebar__community {
    margin-top: 0.85rem;
  }

  .ocs-lessons {
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 639px) {
  .ocs-main {
    padding-top: calc(var(--header-h) + 0.75rem);
  }

  .ocs-header-brand-group {
    gap: 0.45rem;
  }

  .page--offline-class .brand {
    gap: 0.5rem;
  }

  .page--offline-class .brand__tag {
    display: none;
  }

  .ocs-lesson-head {
    margin-bottom: 0.75rem;
  }

  .ocs-lesson-head__title {
    font-size: clamp(1.15rem, 6vw, 1.4rem);
    overflow-wrap: anywhere;
  }

  .ocs-lesson-head__meta {
    font-size: 0.78rem;
  }

  .ocs-player {
    border-radius: 0.5rem;
    box-shadow: 0 8px 24px rgb(15 23 42 / 0.1);
  }

  .ocs-tabs {
    gap: 0;
    margin-top: 1rem;
  }

  .ocs-tabs__tab {
    flex: 1 0 auto;
    padding: 0.7rem 0.75rem;
    text-align: center;
    font-size: 0.8125rem;
  }

  .ocs-tab-panel__head {
    flex-wrap: wrap;
  }

  .ocs-tab-panel__head h3 {
    overflow-wrap: anywhere;
  }

  .ocs-tab-panel__actions {
    width: 100%;
    justify-content: space-between;
  }

  .ocs-note-modal {
    place-items: end center;
    padding: 0;
  }

  .ocs-note-modal__dialog {
    width: 100%;
    max-height: 92dvh;
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: 0.9rem 0.9rem 0 0;
  }

  .ocs-note-form__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .ocs-overview__desc,
  .ocs-overview__list li {
    font-size: 0.875rem;
  }

  .ocs-upgrade,
  .ocs-plans {
    padding: 1rem;
    border-radius: 0.65rem;
  }

  .ocs-upgrade__card {
    width: 100%;
    min-width: 0;
  }

  .ocs-plans__title {
    font-size: 1.125rem;
  }

  .ocs-plan {
    padding: 1rem;
  }
}

@media (max-width: 420px) {
  .ocs-resource-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .ocs-resource-card__actions {
    grid-column: 2;
    justify-self: start;
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ocs-sidebar,
  .ocs-sidebar-backdrop {
    transition: none;
  }
}