:root {
  --bg: #000000;
  --panel: #000000;
  --panel-soft: #0f0f10;
  --line: #262626;
  --text: #f5f5f5;
  --muted: #a8a8a8;
  --sidebar-width: 244px;
  --sidebar-collapsed: 78px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Instrument Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: var(--sidebar-width);
  height: 100vh;
  padding: 1rem 0.75rem 1.5rem;
  border-right: 1px solid var(--line);
  background: var(--panel);
  transition: width 220ms ease, padding 220ms ease;
}

.sidebar.is-collapsed {
  width: var(--sidebar-collapsed);
  padding-inline: 0.55rem;
  border-right-color: transparent;
  background: transparent;
  box-shadow: none;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.5rem;
}

.brand {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  min-width: 0;
  height: 2.5rem;
  flex: 1;
  overflow: hidden;
}

.brand-image,
.nav-label {
  transition: opacity 180ms ease, transform 180ms ease;
}

.brand-image {
  position: absolute;
  left: 0;
  top: 50%;
  display: block;
  height: auto;
  transform: translateY(-50%);
}

.brand-image-full {
  width: 170px;
  opacity: 1;
}

.brand-image-icon {
  width: 34px;
  opacity: 0;
  pointer-events: none;
}

.sidebar-nav {
  display: grid;
  gap: 0.2rem;
}

.sidebar-account-row {
  margin-top: auto;
  padding: 0.35rem 0.85rem 0;
}

.sidebar-auth-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  width: 100%;
  min-height: 44px;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-soft);
  color: var(--text);
  cursor: pointer;
}

.sidebar-auth-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.2rem;
  height: 1.2rem;
}

.sidebar-auth-image {
  display: block;
  width: 1.15rem;
  height: 1.15rem;
  object-fit: contain;
}

.sidebar-auth-label {
  white-space: nowrap;
}

.sidebar.is-collapsed .sidebar-account-row {
  padding-inline: 0.15rem;
}

.sidebar.is-collapsed .sidebar-auth-button {
  width: 100%;
  min-width: 0;
  padding-inline: 0;
}

.sidebar.is-collapsed .sidebar-auth-label {
  display: none;
}

.sidebar.is-collapsed .sidebar-nav,
.sidebar.is-collapsed .sidebar-account-row {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.8rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--text);
}

.nav-link:hover,
.nav-link.is-active {
  background: transparent;
}

.nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
}

.nav-icon-image {
  display: block;
  width: 1.3rem;
  height: 1.3rem;
  object-fit: contain;
}

.nav-icon-plus {
  font-size: 1.9rem;
  line-height: 1;
  font-weight: 300;
}

.sidebar.is-collapsed .brand-image-full,
.sidebar.is-collapsed .nav-label {
  opacity: 0;
  transform: translateX(-6px);
  pointer-events: none;
}

.sidebar.is-collapsed .brand {
  flex: 0 0 34px;
  width: 34px;
  min-width: 34px;
  overflow: visible;
}

.sidebar.is-collapsed .brand-image-icon {
  left: 0;
  opacity: 1;
  transform: translateY(-50%);
  pointer-events: auto;
}

.communities-main {
  flex: 1;
  padding: 1.75rem 2rem 3rem;
}

.communities-header,
.search-panel,
.search-controls,
.chip-row,
.section-head,
.community-meta,
.member-row {
  display: flex;
  gap: 1rem;
}

.communities-header {
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.page-kicker,
.section-kicker {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.communities-header h1,
.section-head h2,
.community-card h3,
.signal-card h3,
.search-copy h2 {
  margin: 0;
}

.communities-header p,
.search-copy p,
.community-card p,
.signal-card p {
  color: var(--muted);
}

.text-link {
  color: var(--muted);
}

.search-panel,
.community-card,
.signal-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
}

.search-panel {
  align-items: flex-start;
  justify-content: space-between;
  padding: 1rem;
}

.search-copy {
  max-width: 420px;
}

.search-controls {
  flex: 1;
  flex-direction: column;
  max-width: 620px;
}

input[type="search"] {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-soft);
  color: var(--text);
  outline: none;
}

.chip-row {
  flex-wrap: wrap;
}

.chip {
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
}

.chip-link {
  display: inline-flex;
  align-items: center;
}

.chip-active {
  color: var(--text);
}

.section-block {
  margin-top: 1.5rem;
}

.section-head {
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.community-grid,
.signal-grid {
  display: grid;
  gap: 1rem;
}

.community-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.community-empty-state {
  display: grid;
  gap: 0.75rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
}

.community-empty-state h3,
.community-empty-state p {
  margin: 0;
}

.community-empty-state p {
  color: var(--muted);
  line-height: 1.6;
}

.community-card {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
  min-height: 240px;
}

.community-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel-soft);
  font-size: 1.1rem;
  font-weight: 700;
}

.community-copy {
  display: grid;
  gap: 0.7rem;
}

.community-copy p {
  margin: 0;
  line-height: 1.6;
}

.community-meta {
  flex-wrap: wrap;
  margin-top: auto;
}

.community-meta span {
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.82rem;
}

.member-row {
  align-items: center;
}

.member-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #1b1b1d;
  margin-left: -0.35rem;
}

.member-dot:first-child {
  margin-left: 0;
}

.signal-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.signal-card {
  padding: 1.15rem;
}

.signal-card p {
  margin: 0.75rem 0 0;
  line-height: 1.65;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1100px) {
  .search-panel {
    flex-direction: column;
  }

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

@media (max-width: 760px) {
  .app-shell {
    display: block;
  }

  .sidebar {
    position: fixed;
    left: 0;
    right: 0;
    top: auto;
    bottom: 0;
    z-index: 30;
    width: 100%;
    height: auto;
    padding: 0.55rem 0.75rem calc(0.55rem + env(safe-area-inset-bottom));
    border-right: 0;
    border-top: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.94);
    backdrop-filter: blur(14px);
    box-shadow: 0 -12px 28px rgba(0, 0, 0, 0.35);
    transition: none;
  }

  .sidebar.is-collapsed {
    width: 100%;
    height: auto;
    padding: 0.55rem 0.75rem calc(0.55rem + env(safe-area-inset-bottom));
    border-top: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.94);
    box-shadow: 0 -12px 28px rgba(0, 0, 0, 0.35);
  }

  .sidebar.is-collapsed .sidebar-nav {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
  }

  .brand-row,
  .sidebar-account-row {
    display: none;
  }

  .sidebar-nav {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.35rem;
  }

  .nav-link {
    justify-content: center;
    min-height: 56px;
    padding: 0.55rem 0.25rem;
    border-radius: 16px;
  }

  .nav-label {
    display: none;
  }

  .nav-icon {
    width: 2.1rem;
    height: 2.1rem;
  }

  .nav-icon-image {
    width: 1.45rem;
    height: 1.45rem;
  }

  .communities-main {
    padding: 1rem 1rem calc(6.5rem + env(safe-area-inset-bottom));
  }

  .communities-header,
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .community-grid,
  .signal-grid {
    grid-template-columns: 1fr;
  }
}