:root {
  color-scheme: dark;
  --radius: 6px;
  --radius-lg: 10px;
  --header-height: 60px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1117;
  --bg-raised: #161b22;
  --panel: #0d1117;
  --panel-strong: #161b22;
  --panel-soft: #161b22;
  --panel-hover: #1c2128;
  --text: #c9d1d9;
  --text-strong: #f0f6fc;
  --muted: #8b949e;
  --muted-strong: #c9d1d9;
  --line: #30363d;
  --line-soft: #21262d;
  --line-bright: #58a6ff;
  --signal: #3fb950;
  --signal-strong: #56d364;
  --signal-soft: rgba(63, 185, 80, 0.15);
  --cyan: #58a6ff;
  --cyan-soft: rgba(88, 166, 255, 0.12);
  --warn: #d29922;
  --warn-soft: rgba(210, 153, 34, 0.15);
  --danger: #f85149;
  --danger-soft: rgba(248, 81, 73, 0.13);
  --ink: #0d1117;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-soft: 0 1px 0 rgba(255, 255, 255, 0.03);
  --grid: rgba(48, 54, 61, 0.4);
  --grid-glow: rgba(63, 185, 80, 0.05);
  --code-bg: rgba(110, 118, 129, 0.15);
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --bg-raised: #f6f8fa;
  --panel: #ffffff;
  --panel-strong: #f6f8fa;
  --panel-soft: #f6f8fa;
  --panel-hover: #eaeef2;
  --text: #1f2328;
  --text-strong: #0d1117;
  --muted: #59636e;
  --muted-strong: #1f2328;
  --line: #d1d9e0;
  --line-soft: #d8dee4;
  --line-bright: #0969da;
  --signal: #1a7f37;
  --signal-strong: #1f883d;
  --signal-soft: rgba(31, 136, 61, 0.10);
  --cyan: #0969da;
  --cyan-soft: rgba(9, 105, 218, 0.08);
  --warn: #9a6700;
  --warn-soft: rgba(154, 103, 0, 0.10);
  --danger: #cf222e;
  --danger-soft: rgba(207, 34, 46, 0.08);
  --ink: #ffffff;
  --shadow: 0 8px 24px rgba(140, 149, 159, 0.2);
  --shadow-soft: 0 1px 0 rgba(27, 31, 36, 0.04);
  --grid: rgba(208, 215, 222, 0.5);
  --grid-glow: rgba(31, 136, 61, 0.04);
  --code-bg: rgba(175, 184, 193, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    radial-gradient(circle at 20% -10%, var(--grid-glow), transparent 40rem),
    var(--bg);
  background-size:
    44px 44px,
    44px 44px,
    auto,
    auto;
  color: var(--text);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial,
    sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: var(--radius);
}

code,
.message-envelope {
  font-family:
    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono",
    monospace;
}

code {
  background: var(--code-bg);
  border-radius: var(--radius);
  padding: 2px 6px;
  font-size: 0.85em;
  overflow-wrap: anywhere;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 20;
  transform: translateY(-150%);
  border: 1px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--bg-raised);
  color: var(--cyan);
  padding: 10px 12px;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: var(--bg-raised);
  backdrop-filter: saturate(180%) blur(10px);
}

[data-theme="dark"] .site-header {
  background: rgba(22, 27, 34, 0.85);
}

[data-theme="light"] .site-header {
  background: rgba(246, 248, 250, 0.92);
}

.site-nav,
.site-footer,
.shell {
  width: min(100% - 32px, 1180px);
  margin: 0 auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: var(--header-height);
  padding: 10px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-strong);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.brand:hover {
  text-decoration: none;
}

.brand::before {
  width: 18px;
  height: 18px;
  border: 1px solid var(--signal);
  border-radius: 4px;
  background:
    linear-gradient(135deg, var(--signal) 0%, var(--signal-strong) 100%);
  box-shadow: 0 0 12px var(--signal-soft);
  content: "";
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  flex: 1;
  gap: 2px;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.nav-links a {
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 6px 12px;
  color: var(--muted);
  transition: color 0.1s, background 0.1s, border-color 0.1s;
}

.nav-links a:hover {
  background: var(--panel-hover);
  color: var(--text-strong);
  text-decoration: none;
}

.nav-links a[aria-current="page"] {
  background: var(--panel-hover);
  color: var(--text-strong);
  border-color: var(--line);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
  color: var(--muted-strong);
  cursor: pointer;
  padding: 0;
  transition: color 0.1s, background 0.1s, border-color 0.1s;
}

.theme-toggle:hover {
  background: var(--panel-hover);
  color: var(--text-strong);
  border-color: var(--line-bright);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: block;
}

.shell {
  padding: 44px 0 56px;
}

.public-shell .shell {
  padding-top: 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(300px, 0.94fr);
  gap: 36px;
  align-items: center;
  min-height: calc(100svh - 250px);
}

.hero-copy,
.page-head {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  color: var(--signal);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 16px;
  height: 1px;
  background: currentColor;
  content: "";
}

h1,
h2,
h3,
p,
li,
dt,
dd,
small,
time,
pre {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 980px;
  margin: 0;
  color: var(--text-strong);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2,
h3 {
  margin: 0;
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 1rem;
}

h3 {
  font-size: 0.9375rem;
}

.lede {
  max-width: 720px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.6;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
  color: var(--text-strong);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 5px 16px;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s, color 0.1s;
}

.button:hover {
  background: var(--panel-hover);
  border-color: var(--line-bright);
  text-decoration: none;
}

.button.primary {
  border-color: var(--signal);
  background: var(--signal);
  color: #ffffff;
}

.button.primary:hover {
  background: var(--signal-strong);
  border-color: var(--signal-strong);
  color: #ffffff;
}

.button.ghost {
  border-color: transparent;
  background: transparent;
  color: var(--muted);
}

.button.ghost:hover {
  background: var(--panel-hover);
  color: var(--text-strong);
}

.button.small {
  min-height: 28px;
  padding: 3px 12px;
  font-size: 0.8125rem;
}

.signal-board,
.status-grid {
  display: grid;
  gap: 1px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
  box-shadow: var(--shadow-soft);
}

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

.signal-board div,
.status-grid div,
.panel {
  min-width: 0;
  background: var(--panel);
}

.signal-board div,
.status-grid div {
  padding: 18px 20px;
}

.signal-board dt,
.status-grid dt {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.signal-board dd,
.status-grid dd {
  margin: 6px 0 0;
  color: var(--text-strong);
  font-size: 1.0625rem;
  font-weight: 600;
}

.signal-board .warn,
.status-grid .warn {
  color: var(--warn);
}

.notice-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-strong);
  padding: 12px 16px;
  color: var(--muted-strong);
  font-size: 0.875rem;
  line-height: 1.55;
}

.notice-line strong {
  color: var(--text-strong);
}

.notice-line.error {
  border-color: var(--warn);
  background: var(--warn-soft);
  color: var(--warn);
}

.page-head {
  max-width: 940px;
}

.page-head.compact {
  max-width: 860px;
}

.content-grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

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

.content-grid.three-up,
.status-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-grid.four-up {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.message-panel .content-grid {
  margin: 16px;
}

.status-grid.compact-list {
  grid-template-columns: 1fr;
  box-shadow: none;
}

.panel {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  padding: 20px;
  box-shadow: var(--shadow-soft);
  transition: border-color 0.15s;
}

.panel:hover {
  border-color: var(--line-bright);
}

.panel p,
.panel ul {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.panel ul {
  display: grid;
  gap: 8px;
  padding-left: 20px;
}

.panel a:not(.button) {
  color: var(--cyan);
}

.dashboard-card {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 180px;
}

.dashboard-card .button {
  justify-self: start;
  margin-top: 4px;
}

.metric {
  margin: 8px 0 0;
  color: var(--text-strong);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
}

.contact-card a {
  display: block;
  margin-top: 12px;
  color: var(--cyan);
  font-size: 0.875rem;
}

.directory-row h2 a,
.contact-row h2 a {
  color: var(--cyan);
}

.search-form,
.auth-form {
  display: grid;
  gap: 10px;
}

.search-form {
  grid-template-columns: minmax(180px, 360px) auto;
  margin-top: 24px;
}

.auth-form {
  width: min(100%, 480px);
  margin-top: 24px;
}

.compact-form {
  width: 100%;
  margin-top: 14px;
}

.search-form label {
  grid-column: 1 / -1;
}

.search-form label,
.auth-form label,
.message-form label {
  color: var(--text-strong);
  font-size: 0.8125rem;
  font-weight: 600;
}

.search-form input,
.auth-form input,
.auth-form select,
.auth-form textarea,
.inline-form input,
.message-form textarea,
.message-form input,
.server-shell textarea {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  padding: 7px 12px;
  transition: border-color 0.1s, box-shadow 0.1s;
}

.search-form input:focus,
.auth-form input:focus,
.auth-form select:focus,
.auth-form textarea:focus,
.inline-form input:focus,
.message-form textarea:focus,
.message-form input:focus,
.server-shell textarea:focus {
  border-color: var(--line-bright);
  box-shadow: 0 0 0 3px var(--cyan-soft);
  outline: none;
}

.search-form input,
.auth-form input,
.auth-form select {
  min-height: 36px;
}

.auth-form textarea,
.message-form textarea {
  resize: vertical;
}

.request-row {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line-soft);
  padding: 14px 0;
}

.request-row:first-of-type {
  border-top: 0;
}

.request-row p,
.request-row small,
.request-row time {
  margin: 0;
  color: var(--muted);
}

.message-shell {
  display: grid;
  grid-template-columns: minmax(230px, 320px) minmax(0, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.message-sidebar,
.message-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}

.message-sidebar {
  align-self: start;
  padding: 16px;
}

.message-sidebar .auth-form + .auth-form {
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}

.rift-list {
  display: grid;
  gap: 6px;
  margin-top: 16px;
}

.rift-row {
  display: grid;
  gap: 4px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 10px 12px;
  transition: background 0.1s, border-color 0.1s;
}

.rift-row:hover {
  border-color: var(--line);
  background: var(--panel-hover);
}

.rift-row.active {
  border-color: var(--line-bright);
  background: var(--cyan-soft);
}

.rift-row span {
  color: var(--text-strong);
  font-weight: 600;
}

.rift-row small,
.rift-row time,
.message-state,
.empty-copy,
[data-typing-status],
[data-message-status] {
  color: var(--muted);
  font-size: 0.8125rem;
}

.message-panel {
  display: flex;
  min-height: 560px;
  flex-direction: column;
  overflow: hidden;
}

.message-panel.empty-state {
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: var(--muted);
  text-align: center;
}

.message-head,
.message-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.message-head {
  border-bottom: 1px solid var(--line);
  background: var(--panel-strong);
  padding: 14px 16px;
}

.message-head p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.message-head .eyebrow {
  margin-bottom: 4px;
}

.inline-form,
.compact-actions,
.reaction-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.inline-form {
  padding: 0 16px;
}

.message-row .inline-form,
.request-row .inline-form,
.message-panel .inline-form {
  padding: 0;
}

.reaction-chip,
.reaction-chip button {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--text);
  padding: 3px 9px;
  font: inherit;
  font-size: 0.8125rem;
  cursor: pointer;
}

.reaction-chip:hover,
.reaction-chip button:hover {
  background: var(--panel-hover);
  border-color: var(--line-bright);
}

.message-list {
  display: grid;
  align-content: start;
  gap: 10px;
  flex: 1;
  overflow: auto;
  padding: 16px;
}

.message-row {
  display: grid;
  gap: 6px;
  max-width: 760px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--panel-strong);
  padding: 10px 12px;
}

.message-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 0.8125rem;
}

.message-meta strong {
  color: var(--text-strong);
}

.message-envelope {
  max-width: 100%;
  margin: 0;
  overflow-x: auto;
  white-space: pre-wrap;
  color: var(--text);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.message-envelope.deleted {
  color: var(--muted);
  font-style: italic;
}

.message-state {
  margin: 0;
  text-align: right;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.message-form {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  background: var(--panel-strong);
  padding: 14px 16px;
}

audio[data-call-remote] {
  width: 100%;
  margin-top: 14px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--line);
  margin-top: 32px;
  padding: 20px 0 28px;
  color: var(--muted);
  font-size: 0.8125rem;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer strong {
  color: var(--text-strong);
}

@media (max-width: 1040px) {
  .content-grid.four-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 880px) {
  h1 {
    font-size: 2.25rem;
  }

  .hero-grid,
  .content-grid.two-up,
  .content-grid.three-up,
  .message-shell,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
  }

  .message-panel {
    min-height: 480px;
  }
}

@media (max-width: 640px) {
  .site-nav,
  .site-footer,
  .shell {
    width: min(100% - 20px, 1180px);
  }

  .site-nav {
    flex-wrap: wrap;
    align-items: stretch;
  }

  .nav-links {
    width: 100%;
    order: 3;
    justify-content: flex-start;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .shell,
  .public-shell .shell {
    padding: 32px 0 40px;
  }

  h1 {
    font-size: 1.875rem;
  }

  .signal-board,
  .content-grid.four-up {
    grid-template-columns: 1fr;
  }

  .search-form {
    grid-template-columns: 1fr;
  }

  .actions > .button,
  .auth-form .button,
  .search-form .button {
    width: 100%;
  }

  .message-head,
  .message-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .message-actions .button {
    width: 100%;
  }
}