:root {
  --side-border: rgba(255,255,255,.08);
  --text: #d8d8d8;
  --muted: #9a9a9a;
  --icon: rgba(255,255,255,.60);
  --icon-active: #fff;
  --pill: #232323;
  --pad: 16px;
  --radius: 16px;
  --icon-size: 20px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

.app-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100dvh;
  background: var(--bgc-app);
  border-right: 1px solid var(--side-border);
  z-index: 1000;
}

.app-nav__inner {
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
  padding: var(--pad);
}

.app-nav__brand {
  padding: 6px 8px 2px;
  color: #fff;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: .6px;
  line-height: 1.1;
}

.app-nav__menu {
  overflow: hidden;
}

.app-nav__menu:hover {
  overflow: auto;
}

.app-nav__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.app-nav__link {
  text-decoration: none;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
  height: 42px;
  padding: 0 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.app-nav__link svg {
  width: var(--icon-size) !important;
  height: var(--icon-size) !important;
  display: block;
  color: var(--icon);
}

.app-nav__link > span {
  font-size: 14px;
  line-height: 1;
}

.app-nav__link:hover,
.app-nav__link.is-active {
  background: var(--pill);
  border-color: var(--side-border);
  color: #fff;
}

.app-nav__link.is-active svg {
  color: var(--icon-active);
}

.app-nav__user {
  display: block;
}

.app-nav__usercard {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  height: 74px;
  border-radius: 12px;
  background: var(--pill);
  border: 1px solid var(--side-border);
  color: var(--text);
  text-decoration: none;
}

.app-nav__usercard:link,
.app-nav__usercard:visited,
.app-nav__usercard:hover,
.app-nav__usercard:focus,
.app-nav__usercard:active {
  color: var(--text);
  text-decoration: none;
}

.app-nav__avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, #444, #2a2a2a);
  border: 1px solid var(--side-border);
  object-fit: cover;
  display: block;
  overflow: hidden;
  flex-shrink: 0;
}

.app-nav__userinfo {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.app-nav__userinfo strong {
  font-size: 13px;
  line-height: 1.1;
}

.app-nav__userinfo small {
  font-size: 11px;
  line-height: 1.1;
  color: var(--muted);
}

@media (max-width: 1279px) and (min-width: 769px) {
  .app-nav {
    width: var(--sidebar-w-md);
  }
}

@media (max-width: 768px) {
  .app-nav {
    top: auto;
    left: 50%;
    bottom: calc(12px + env(safe-area-inset-bottom, 0));
    transform: translateX(-50%);
    width: min(100% - 24px, 520px);
    height: auto;
    background: var(--bgc-app);
    border: 1px solid var(--side-border);
    border-radius: 16px;
    padding: 0;
  }

  .app-nav__inner {
    height: var(--dock-h);
    padding: 10px 14px;
    grid-template-rows: 1fr;
    align-items: center;
  }

  .app-nav__brand,
  .app-nav__user {
    display: none;
  }
  
  .app-nav__menu {
    overflow: visible;
  }

  .app-nav__list {
    margin: 0;
    padding: 0;
    flex-direction: row;
    align-items: center;
    justify-content: space-around;
    gap: clamp(10px, 4vw, 18px);
  }

  .app-nav__link {
    justify-content: center;
    width: 42px;
    height: 42px;
    padding: 0;
    gap: 0;
  }

  .app-nav__link > span {
    display: none;
  }

  .app-nav__link.is-active {
    background: rgba(255,255,255,.08);
    border-color: var(--side-border);
  }
}

@media (max-width: 340px) {
  .app-nav {
    width: calc(100% - 16px);
  }

  .app-nav__inner {
    padding: 8px 10px;
  }

  .app-nav__link {
    width: 38px;
    height: 38px;
    border-radius: 10px;
  }
}