.aula {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.aula-header,
.aula-top-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.aula-header {
  min-height: 73px;
  justify-content: space-between;
}

.aula-back {
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.aula-back:hover,
.aula-login-bottom a:hover {
  color: var(--blue-dark);
  text-decoration: underline;
}

.aula-main {
  flex: 1;
  padding-block: clamp(25px, 5vw, 70px);
}

.aula-guest {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  align-items: center;
  gap: clamp(26px, 6vw, 95px);
}

.aula-welcome h1 {
  margin-block: 15px 19px;
  font-size: clamp(47px, 6vw, 83px);
  line-height: .97;
}

.aula-welcome > p:not(.eyebrow) {
  max-width: 450px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.58;
}

.aula-art {
  aspect-ratio: 2.55;
  margin-top: 27px;
  overflow: hidden;
  border: 1px solid #bfcfff;
  border-radius: var(--radius);
  background: #c8ddff;
}

.aula-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 44%;
}

.aula-login,
.aula-sidebar,
.aula-resource,
.aula-empty,
.aula-module,
.aula-lesson,
.aula-progress {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.aula-login {
  padding: clamp(22px, 4vw, 42px);
  box-shadow: 0 24px 64px -54px #122087;
}

.aula-lock,
.aula-card-icon,
.aula-avatar {
  display: grid;
  place-items: center;
  flex: none;
  width: 45px;
  height: 45px;
  border-radius: 11px;
  background: var(--tint);
  color: var(--blue-dark);
  font-size: 21px;
  font-weight: 750;
}

.aula-login h2 {
  margin: 17px 0 8px;
  font-size: clamp(31px, 3.7vw, 43px);
  line-height: 1.03;
}

.aula-login > p:not(.aula-lock) {
  overflow-wrap: anywhere;
}

.aula-login > p:not(.aula-lock, .aula-status),
.aula-empty p,
.aula-panel-heading > p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.55;
}

.aula-form {
  display: grid;
  gap: 9px;
  margin-top: 25px;
}

.aula-form label,
.aula-filter label {
  font-size: 14px;
  font-weight: 750;
}

.aula-form input,
.aula-filter input {
  width: 100%;
  min-height: 49px;
  padding: 10px 13px;
  border: 1px solid #bdc1ce;
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}

.aula-form > .button {
  justify-content: space-between;
  margin-top: 6px;
}

.aula .button:disabled,
.aula-inline-button:disabled,
.aula-lesson-row button:disabled {
  cursor: wait;
  opacity: .65;
}

.aula-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 17px;
}

.aula-inline-button {
  padding: 7px 0;
  border: 0;
  background: none;
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 750;
  text-align: left;
}

.aula-inline-button:hover:not(:disabled) { text-decoration: underline; }

.aula-login-bottom {
  margin-top: 22px;
  padding-top: 17px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.aula-login-bottom a {
  color: var(--blue-dark);
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.aula-notice,
.aula-status:not(:empty) {
  padding: 11px 14px;
  border: 1px solid #d5ddff;
  border-radius: 9px;
  background: #edf0ff;
  color: var(--blue-dark);
  font-size: 14px;
  line-height: 1.5;
}

.aula-notice { margin-bottom: 17px; }
.aula-status:not(:empty) { margin-block: 13px; }
.aula-status[data-error="true"],
.aula-notice[data-error="true"] {
  border-color: #efc8c8;
  background: #fff4f3;
  color: #932b2d;
}

.aula-member {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  align-items: start;
  gap: 23px;
}

.aula-sidebar {
  position: sticky;
  top: 92px;
  padding: 12px;
}

.aula-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 6px 14px;
  border-bottom: 1px solid var(--line);
}

.aula-avatar {
  width: 35px;
  height: 35px;
  font-size: 16px;
}

.aula-profile small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.aula-nav {
  display: grid;
  gap: 3px;
  padding-top: 10px;
}

.aula-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.aula-nav a:hover,
.aula-nav a[aria-current] {
  background: var(--tint);
  color: var(--blue-dark);
}

.aula-nav a span {
  width: 23px;
  color: var(--blue-dark);
  font-weight: 800;
  text-align: center;
}

.aula-banner {
  display: grid;
  min-height: 233px;
  align-items: end;
  padding: clamp(24px, 4vw, 43px);
  border-radius: var(--radius);
  background: radial-gradient(ellipse at 85% 15%, #3c58fb, transparent 65%), #1028ce;
  color: var(--white);
}

.aula-banner .eyebrow {
  width: fit-content;
  padding: 5px 8px;
  border: 1px solid #fff7;
  border-radius: 5px;
  color: var(--white);
}

.aula-banner h1,
.aula-empty h1 {
  margin-block: 12px 10px;
  font-size: clamp(37px, 5vw, 62px);
  line-height: 1;
}

.aula-banner h1:focus-visible { outline-color: var(--white); }
.aula-banner p:last-child { color: #f0f3ff; line-height: 1.55; }

.aula-overview,
.aula-resource-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 11px;
  margin-top: 14px;
}

.aula-overview-card {
  position: relative;
  display: grid;
  gap: 7px;
  align-content: start;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--white);
}

.aula-overview-card:hover {
  border-color: #a7b2fc;
  color: var(--blue-dark);
}

.aula-overview-card strong { margin-top: 3px; }
.aula-overview-card span:not([aria-hidden]) { color: var(--muted); font-size: 13px; line-height: 1.45; }
.aula-card-arrow {
  position: absolute;
  top: 15px;
  right: 15px;
  color: var(--blue-dark);
  font-weight: 750;
}

.aula-panel-heading { margin-bottom: 22px; }

.aula-panel-heading h2 {
  margin: 8px 0;
  font-size: clamp(34px, 4.8vw, 58px);
  line-height: 1.03;
}

.aula-filter { max-width: 360px; }
.aula-filter label { display: block; margin-bottom: 7px; }

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

.aula-resource,
.aula-empty,
.aula-lesson,
.aula-progress {
  padding: clamp(16px, 3vw, 26px);
}

.aula-resource h3,
.aula-lesson h3 {
  margin: 7px 0;
  font-size: 25px;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.aula-resource p,
.aula-module p,
.aula-lesson > p:not(.aula-status) {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.aula-resource .aula-resource-kind {
  color: var(--blue-dark);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.aula-downloads {
  display: grid;
  gap: 6px;
  margin-top: 13px;
}

.aula-downloads .button { width: fit-content; min-height: 41px; padding: 8px 12px; }
.aula-empty h3 { margin-bottom: 7px; font-size: 23px; }
.aula-empty .button,
.aula-more { margin-top: 14px; }

.aula-progress {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.aula-progress label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

.aula-progress label strong { color: var(--blue-dark); }
.aula-progress progress { width: 100%; accent-color: var(--blue); }

.aula-module { padding: 16px 18px; }
.aula-module + .aula-module { margin-top: 9px; }
.aula-module summary { color: var(--ink); font-weight: 750; list-style: revert; }
.aula-module summary::-webkit-details-marker { display: revert; }
.aula-module summary:hover { color: var(--blue-dark); }
.aula-module p { margin-top: 8px; }

.aula-module ol { margin: 13px 0 0; padding: 0; list-style: none; }
.aula-lesson-row { border-top: 1px solid var(--line); }
.aula-lesson-row button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 4px;
  border: 0;
  background: var(--white);
  color: var(--ink);
  text-align: left;
}

.aula-lesson-row button:hover { color: var(--blue-dark); }
.aula-lesson-row span { color: var(--blue-dark); font-size: 12px; font-weight: 750; }
.aula-lesson h3 { margin-block: 11px; font-size: clamp(27px, 4vw, 39px); }
.aula-lesson-body { margin-top: 13px; white-space: pre-wrap; }
.aula-lesson video { width: 100%; max-height: 65vh; margin-top: 14px; border-radius: 9px; background: var(--ink); }
.aula-lesson .button { margin-top: 16px; }

.aula-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.aula-footer .shell {
  min-height: 67px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.aula-footer a { font-weight: 750; }
.aula-footer a:hover { color: var(--blue-dark); }

@media (max-width: 850px) {
  .aula-member { grid-template-columns: 185px minmax(0, 1fr); gap: 15px; }
  .aula-overview { grid-template-columns: 1fr; }
}

@media (max-width: 690px) {
  .aula-guest,
  .aula-member { grid-template-columns: 1fr; }
  .aula-header { min-height: 61px; }
  .aula-art { display: none; }
  .aula-sidebar { position: static; }
  .aula-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 465px) {
  .aula-resource-grid { grid-template-columns: 1fr; }
  .aula-top-nav { gap: 7px; }
  .aula-top-nav .button-nav { min-height: 39px; padding: 7px; font-size: 12px; }
  .aula-top-nav:has(#aula-logout:not([hidden])) .aula-back { display: none; }
  .aula-back { font-size: 12px; }
  .aula-nav a { gap: 4px; padding: 7px; font-size: 13px; }
}