:root {
  color-scheme: dark;
  --bg: #0b1220;
  --surface: #121a2b;
  --surface-2: #1e293b;
  --border: rgba(226, 232, 240, 0.14);
  --border-strong: rgba(203, 213, 225, 0.32);
  --text: #f1f5f9;
  --text-dim: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #0284c7;
  --accent-hover: #0369a1;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

html { background: var(--bg); }

body {
  margin: 0 auto;
  max-width: 1200px;
  padding: 1.25rem 1.5rem 3rem;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
}

h1 { margin: 0 0 .75rem; font-size: 1.35rem; font-weight: 650; letter-spacing: -0.01em; }
h2 { margin: 1.5rem 0 .6rem; font-size: 1.05rem; }
p { margin: 0 0 .75rem; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, .num, .spec-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
code { font-size: .86em; overflow-wrap: anywhere; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: .35rem 1rem;
  margin: -1.25rem -1.5rem 1.25rem;
  padding: .9rem 1.5rem .75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.nav-brand { display: flex; flex-direction: column; gap: .15rem; min-width: 0; }
.nav-title {
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
  overflow-wrap: anywhere;
  text-decoration: none;
}
.nav-title:hover { color: var(--accent); text-decoration: none; }
.nav-byline { font-size: 12px; color: var(--text-dim); }
.nav-byline a { color: var(--text-dim); }
.versions {
  grid-column: 1 / -1;
  min-width: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-dim);
  overflow-wrap: anywhere;
}
.nav-logout { margin: 0; white-space: nowrap; }
.nav-logout button,
.btn,
.edit-form button[type=submit] {
  padding: .4rem .85rem;
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--accent-strong);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-size: .875rem;
  line-height: 1.3;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}
.nav-logout button,
.actions .qr-link,
.actions a.btn {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.nav-logout button:hover,
.actions .qr-link:hover,
.actions a.btn:hover {
  background: var(--surface-2);
  color: var(--text);
  text-decoration: none;
}
.edit-form button {
  margin-top: .5rem;
  padding: .4rem .85rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: .875rem;
  line-height: 1.3;
}
.edit-form button:hover { background: var(--surface-2); }
.edit-form button[type=submit]:hover { background: var(--accent-hover); }
.edit-form button.btn-danger,
button.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: rgba(248, 113, 113, .55);
}
.edit-form button.btn-danger:hover,
button.btn-danger:hover { background: rgba(248, 113, 113, .1); }

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem 1.5rem;
  margin-bottom: 1rem;
}
.page-head h1 { margin-bottom: .35rem; }
.eyebrow {
  margin: 0 0 .2rem;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.peer-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.peer-head h1 { margin-bottom: .4rem; }
.peer-pills, .actions { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.actions { margin: 0 0 1.1rem; }
.actions .qr-link,
.actions a.btn { margin: 0; }

.meta { font-size: 13px; color: var(--text-dim); margin-bottom: .75rem; }
.back { display: inline-block; margin-bottom: .8rem; color: var(--text-dim); font-size: 13px; }
.back:hover { color: var(--accent); }

.spec-strip {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem 1.5rem;
  margin: 0 0 1rem;
  padding: .75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}
.spec { display: flex; flex-direction: column; gap: .1rem; min-width: 8rem; }
.spec-label { color: var(--text-dim); font-size: 12px; font-weight: 500; }
.spec-value { color: var(--text); }
.spec-strip .meta { flex-basis: 100%; margin: .15rem 0 0; }

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}
.workspace-main,
.table-scroll,
.server-tools,
.detail-layout > * { min-width: 0; }
.server-tools {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}
.server-tools h2 {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.server-tools .edit-form { max-width: none; margin-top: 0; }

.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; }
.peer-table td,
.proxy-session-table td { overflow-wrap: anywhere; }
.peer-table .status { max-width: 100%; white-space: normal; overflow-wrap: normal; }
th, td {
  padding: .55rem .7rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: .02em;
}
.num { text-align: right; font-size: 12px; white-space: nowrap; }
.peer-table tr:not(:first-child):hover { background: rgba(56, 189, 248, .05); }
.peer-table tr.is-online td:first-child { box-shadow: inset 2px 0 0 var(--ok); }
.comment-cell { max-width: 24rem; overflow-wrap: anywhere; }
.th-hint { display: block; margin-top: .1rem; color: var(--text-dim); font-size: 11px; font-weight: 400; letter-spacing: 0; }

/* Long metadata must not widen the table into the adjacent edit form. */
table.facts { overflow-wrap: anywhere; }
table.facts th {
  width: 12rem;
  background: transparent;
  color: var(--text-dim);
  font-weight: 500;
}
table.facts td { background: transparent; }

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  gap: 1.25rem;
  align-items: start;
}
.detail-layout .edit-form { margin-top: 0; }

.status {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--text-dim);
  font-size: 13px;
  white-space: nowrap;
}
.status-dot {
  width: .5rem;
  height: .5rem;
  border-radius: 999px;
  background: currentColor;
  box-shadow: inset 0 0 0 1px rgba(241, 245, 249, .25);
}
.status-online { color: var(--ok); }
.status-inactive, .status-never { color: var(--text-dim); }
.status-never .status-dot { background: transparent; }
.status-disabled, .status-archived { color: var(--danger); }
.status-linked { color: var(--ok); }
.status-unlinked { color: var(--warn); }

.counter-scope, .proxy-hint {
  display: inline-block;
  margin-left: .35rem;
  padding: .05rem .45rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 500;
  vertical-align: .05rem;
}

.edit-form, .login-card {
  margin-top: 1.25rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  max-width: 480px;
}
.edit-form h2 { margin-top: 0; font-size: 1.05rem; }
.edit-form label, .login-card label {
  display: block;
  margin: .75rem 0 .25rem;
  font-weight: 650;
}
.edit-form label.choice,
label.choice {
  display: block;
  min-width: 0;
  font-weight: 600;
}
label.choice input {
  margin: 0 .45rem .1rem 0;
  vertical-align: middle;
}
.edit-form input[type=text],
.edit-form input[type=password],
.edit-form input[type=number],
.edit-form textarea,
.edit-form select {
  width: 100%;
  padding: .45rem .6rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: .95rem;
  box-sizing: border-box;
}
.edit-form textarea { resize: vertical; min-height: 4rem; }
.edit-form button[type=submit] { margin-top: 1rem; }
fieldset { margin: 0; padding: 0; border: 0; }

.add-user-panel { max-width: 440px; margin-top: 0; padding: .75rem 1rem; }
.add-user-panel > summary {
  display: inline-flex;
  padding: .45rem .95rem;
  border-radius: 6px;
  background: var(--accent-strong);
  color: #fff;
  cursor: pointer;
  font-weight: 650;
  list-style: none;
}
.add-user-panel > summary::-webkit-details-marker { display: none; }
.add-user-panel[open] > summary { margin-bottom: .75rem; }
.protocol-panel > summary,
#imitation-panel > summary { cursor: pointer; font-weight: 650; }
.protocol-panel section:not([hidden]) ~ section:not([hidden]) { margin-top: 1.5rem; }

.danger-panel { max-width: none; border-color: rgba(248, 113, 113, .45); }
.danger-panel h2 { color: var(--danger); }

.creation-warning {
  margin: 0 0 1rem;
  padding: .7rem .85rem;
  border: 1px solid rgba(251, 191, 36, .4);
  border-radius: 8px;
  background: rgba(251, 191, 36, .08);
  color: #fde68a;
}
.warning { color: var(--warn); font-weight: 650; }
.error { color: var(--danger); margin-top: .5rem; }

.empty {
  margin: 0;
  padding: 2rem 1rem;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  color: var(--text-dim);
  text-align: center;
}

.login-screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  margin: -1.25rem -1.5rem -3rem;
  padding: 1.5rem;
}
.login-card { width: min(100%, 360px); margin: 0; }
.login-card h2 { margin-top: 0; }

.qr-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  justify-content: center;
  align-items: center;
  background: rgba(2, 6, 16, .72);
}
.qr-modal-overlay.active { display: flex; }
.qr-modal {
  position: relative;
  width: min(90vw, 360px);
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  text-align: center;
}
.qr-modal h3 { margin: 0 0 1rem; font-size: 1.05rem; }
.qr-modal svg, .qr-modal img { max-width: 100%; height: auto; background: #fff; border-radius: 4px; }
.qr-modal-close {
  position: absolute;
  top: .45rem;
  right: .55rem;
  border: 0;
  background: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1.3rem;
}
.qr-modal-close:hover { color: var(--text); }
.qr-link {
  border: 0;
  background: none;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  padding: 0;
}
.actions .qr-link {
  padding: .4rem .85rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text);
}

.protocol-diagnostics { margin: 0 0 1rem; }
.protocol-diagnostics pre {
  overflow: auto;
  margin: 0;
  padding: .75rem;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
}

.proxy-sessions { margin: 1.5rem 0 0; }
.proxy-sessions h2 { margin: 0 0 .45rem; }
.proxy-sessions .meta { margin: 0 0 .6rem; }
.proxy-session-table { margin-bottom: 1rem; }

@media (max-width: 960px) {
  .detail-layout { grid-template-columns: minmax(0, 1fr); }
  .page-head { flex-direction: column; }
  .server-tools { grid-template-columns: minmax(0, 1fr); }
  :is(.peer-table, .proxy-session-table) tr:first-child { display: none; }
  :is(.peer-table, .proxy-session-table),
  :is(.peer-table, .proxy-session-table) tbody,
  :is(.peer-table, .proxy-session-table) tr { display: block; width: auto; }
  :is(.peer-table, .proxy-session-table) tr {
    margin: 0 0 .75rem;
    padding: .3rem 0;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
  }
  .peer-table tr:not(:first-child):hover { background: var(--surface); }
  :is(.peer-table, .proxy-session-table) td {
    display: grid;
    grid-template-columns: 7.2rem minmax(0, 1fr);
    align-items: start;
    gap: .35rem .75rem;
    border: 0;
    padding: .28rem .75rem;
    min-width: 0;
    overflow-wrap: anywhere;
  }
  :is(.peer-table, .proxy-session-table) td::before {
    content: attr(data-label);
    color: var(--text-dim);
  }
  /* Keep every child of a cell (hints, badges) in the value column. */
  :is(.peer-table, .proxy-session-table) td > * { grid-column: 2; }
  .peer-table td .status {
    max-width: 100%;
    white-space: normal;
    flex-wrap: wrap;
  }
  :is(.peer-table, .proxy-session-table) td.num { text-align: left; white-space: normal; }
  .peer-table tr.is-online { box-shadow: inset 2px 0 0 var(--ok); }
  .peer-table tr.is-online td:first-child { box-shadow: none; }
}

@media (max-width: 720px) {
  body { padding: 1rem .85rem 2.5rem; }
  .login-screen { margin: -1rem -.85rem -2.5rem; }
  .nav { position: static; margin: -1rem -.85rem 1rem; padding: .8rem .85rem .7rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}