/* App frame: sidebar, top bar, content area, and the mobile drawer. */

.app {
  display: grid;
  grid-template-columns: var(--side) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  border-right: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg-raise) 90%, transparent);
  backdrop-filter: blur(8px);
}

.brand {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 12px;
  align-items: center;
  padding: 22px 22px 6px;
  color: var(--ink);
  text-decoration: none;
}

.brand .falcon {
  grid-row: span 2;
}

.brand__name {
  font-size: 25px;
  font-weight: 500;
  font-stretch: 118%;
  letter-spacing: 0.06em;
  line-height: 1;
}

.brand__kind {
  color: var(--mute);
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand:hover {
  color: var(--ink);
}

.brand__progress {
  padding: 14px 22px 18px;
  border-bottom: 1px solid var(--line);
}

.meter,
.bar {
  display: block;
  height: 4px;
  overflow: hidden;
  border-radius: 4px;
  background: var(--line);
}

.meter__fill,
.bar__fill {
  display: block;
  width: var(--value, 0%);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent-fill));
  transition: width 600ms var(--ease);
}

.brand__count {
  margin-top: 8px;
  color: var(--mute);
  font-family: var(--f-mono);
  font-size: 11px;
}

.sidebar__nav {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 12px 12px 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
}

.navlabel {
  margin: 20px 12px 8px;
  color: var(--mute);
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.navlink,
.navlesson {
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.navlink {
  padding: 9px 12px;
  font-size: 14.5px;
}

.navlink .icon {
  color: var(--mute);
}

.navlink:hover,
.navlesson:hover,
.navmod__head:hover {
  background: var(--surface-2);
  color: var(--ink);
}

.navlink[aria-current='page'],
.navlesson[aria-current='page'] {
  background: var(--accent-soft);
  color: var(--ink);
  box-shadow: inset 2px 0 0 var(--accent);
}

.navlink[aria-current='page'] .icon {
  color: var(--accent);
}

.navmod__head {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 9px 12px;
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  text-align: left;
}

.navmod__head .icon {
  color: var(--mute);
  transition: transform var(--dur) var(--ease);
}

.navmod__head[aria-expanded='true'] .icon {
  transform: rotate(90deg);
}

.navmod__count {
  color: var(--mute);
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 400;
}

.navmod__count.is-done {
  color: var(--ok);
}

.navmod__list {
  margin: 2px 0 10px 19px;
  padding: 0 0 0 8px;
  border-left: 1px dashed var(--line-2);
  list-style: none;
}

.navlesson {
  align-items: flex-start;
  padding: 7px 10px;
  font-size: 13.5px;
  line-height: 1.35;
}

.status {
  display: grid;
  place-items: center;
  flex: none;
  width: 15px;
  height: 15px;
  margin-top: 1px;
  border: 1.5px solid var(--line-2);
  border-radius: 50%;
}

.status.is-done {
  border-color: var(--ok);
  background: var(--ok);
  color: var(--bg);
}

.sidebar__user {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
}

.avatar {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--accent-line);
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.user__text {
  display: grid;
  min-width: 0;
}

.user__name,
.user__email {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user__name {
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}

.user__email {
  color: var(--mute);
  font-family: var(--f-mono);
  font-size: 11px;
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  height: var(--topbar);
  padding: 0 28px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg) 84%, transparent);
  backdrop-filter: blur(10px);
}

.topbar__menu {
  display: none;
}

.crumbs {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  color: var(--mute);
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.crumbs__sep {
  margin: 0 10px;
  color: var(--line-2);
}

.search-trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 300px;
  height: 40px;
  padding: 0 10px 0 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--mute);
  font-size: 14px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.search-trigger:hover {
  border-color: var(--accent-line);
  color: var(--text);
}

.search-trigger__text {
  flex: 1;
  text-align: left;
}

.content {
  flex: 1;
  padding: 48px 32px 112px;
  outline: none;
}

.content > * {
  animation: rise 420ms var(--ease) both;
}

.scrim {
  display: none;
}

@media (max-width: 960px) {
  .app {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 40;
    width: min(320px, 86vw);
    height: auto;
    background: var(--bg-raise);
    transform: translateX(-102%);
    transition: transform 320ms var(--ease);
  }

  .is-drawer-open .sidebar {
    transform: none;
    box-shadow: 30px 0 80px -20px rgba(0, 0, 0, 0.6);
  }

  .scrim {
    position: fixed;
    inset: 0;
    z-index: 30;
    display: block;
    background: rgba(1, 8, 18, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity 320ms var(--ease);
  }

  .is-drawer-open .scrim {
    opacity: 1;
    pointer-events: auto;
  }

  .topbar {
    padding: 0 16px;
  }

  .topbar__menu {
    display: inline-grid;
  }

  .search-trigger {
    min-width: 0;
  }

  .content {
    padding: 32px 16px 96px;
  }
}

@media (max-width: 600px) {
  .search-trigger {
    width: 40px;
    padding: 0;
    justify-content: center;
  }

  .search-trigger__text,
  .search-trigger kbd {
    display: none;
  }
}