/* Cognito hub: mission-control theme.
   Surface ladder + hairline borders carry all hierarchy; one accent only. */

:root {
  --canvas: #0a0b0e;
  --surface-1: #101216;
  --surface-2: #15181d;
  --surface-3: #1a1e24;
  --border: #23262c;
  --border-strong: #343841;
  --text: #f4f6f8;
  --text-2: #c9cfda;
  --muted: #8a919e;
  --faint: #5c6370;
  --accent: #5e6ad2;
  --accent-hover: #828fff;
  --up: #1a7f4b;      --up-text: #6ccf8e;
  --down: #c22b52;    --down-text: #ff5286;
  --checking: #b26a00; --checking-text: #fbad37;
  --unknown: #44464e;  --unknown-text: #8a919e;
  --sidebar-w: 240px;
  --sidebar-w-collapsed: 64px;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, "Segoe UI", system-ui, Inter, Roboto, sans-serif;
}

[data-theme="light"] {
  --canvas: #fafafa;
  --surface-1: #ffffff;
  --surface-2: #f1f2f4;
  --surface-3: #e9eaee;
  --border: #ebebeb;
  --border-strong: #d5d7dc;
  --text: #171717;
  --text-2: #3d434e;
  --muted: #555b66;
  --faint: #8a919e;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--canvas);
  color: var(--text);
  font: 400 14px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---------- sidebar ---------- */

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--surface-1);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 16px 12px 12px;
  gap: 4px;
  overflow-y: auto;
  z-index: 20;
  transition: width .18s ease, transform .2s ease;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 14px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .18em;
  color: var(--text);
  white-space: nowrap;
}
.wordmark .pulse {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--up-text);
  flex: none;
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .3; } }

.search-wrap { padding: 0 4px 10px; }
.search {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 10px;
  font: 400 13px/1.2 var(--sans);
  outline: none;
}
.search:focus { border-color: var(--accent); }
.search::placeholder { color: var(--faint); }

.nav-section { margin-top: 12px; }
.nav-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 0 10px 6px;
  white-space: nowrap;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  color: var(--muted);
  border-left: 2px solid transparent;
  white-space: nowrap;
  cursor: pointer;
}
.nav-item:hover { background: var(--surface-2); color: var(--text-2); }
.nav-item.active {
  background: var(--surface-2);
  color: var(--text);
  border-left-color: var(--accent);
}
.nav-label { flex: 1; overflow: hidden; text-overflow: ellipsis; }

.sidebar-foot {
  margin-top: auto;
  padding: 12px 10px 4px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--faint);
  font: 400 11px/1.4 var(--mono);
  white-space: nowrap;
}
.foot-btns { display: flex; gap: 4px; }
.icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  width: 26px; height: 26px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-strong); }

/* collapsed */
.shell.collapsed .sidebar { width: var(--sidebar-w-collapsed); padding: 16px 8px 12px; }
.shell.collapsed .nav-label,
.shell.collapsed .nav-eyebrow,
.shell.collapsed .search-wrap,
.shell.collapsed .wordmark span.wm-text,
.shell.collapsed .foot-host { display: none; }
.shell.collapsed .nav-item { justify-content: center; padding: 7px 0; }
.shell.collapsed .sidebar-foot { justify-content: center; }
.shell.collapsed .main { margin-left: var(--sidebar-w-collapsed); }

/* ---------- main ---------- */

.main {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 32px 40px 64px;
  max-width: 1200px;
  transition: margin-left .18s ease;
}

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.page-title { font-size: 24px; font-weight: 600; letter-spacing: -0.4px; margin: 0; }
.page-sub { color: var(--muted); margin: 4px 0 0; font-size: 13px; }

.head-right { display: flex; align-items: center; gap: 12px; }
.clock { font: 500 13px/1 var(--mono); color: var(--text-2); }
.summary-pill {
  font: 600 11px/1 var(--mono);
  letter-spacing: .08em;
  color: var(--up-text);
  background: color-mix(in srgb, var(--up) 25%, transparent);
  border: 1px solid var(--up);
  border-radius: 999px;
  padding: 6px 12px;
  white-space: nowrap;
}
.summary-pill.degraded {
  color: var(--checking-text);
  background: color-mix(in srgb, var(--checking) 25%, transparent);
  border-color: var(--checking);
}

.crumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--text-2); }

/* quick actions */
.quick-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}
.quick {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.quick:hover { background: var(--surface-2); border-color: var(--border-strong); }
.quick .q-icon { font-size: 18px; }
.quick .q-label { font-weight: 500; font-size: 14px; }
.quick .q-sub { color: var(--muted); font-size: 12px; }

/* card grid */
.group-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 28px 0 12px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.card {
  position: relative;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 108px;
}
.card:hover { background: var(--surface-2); border-color: var(--border-strong); }
.card-top { display: flex; align-items: center; gap: 10px; }
.app-icon {
  width: 34px; height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 17px;
  flex: none;
  background: color-mix(in srgb, var(--brand, #5e6ad2) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand, #5e6ad2) 35%, transparent);
}
.card-name { font-size: 15px; font-weight: 600; }
.card-sub { color: var(--muted); font-size: 13px; }
.card-bottom { display: flex; align-items: center; gap: 8px; margin-top: auto; }
.tag {
  font: 600 10px/1 var(--mono);
  letter-spacing: .08em;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 4px 8px;
}
.hotkey {
  margin-left: auto;
  font: 500 11px/1 var(--mono);
  color: var(--faint);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 6px;
}

/* status dots */
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex: none;
  background: var(--unknown);
}
.dot[data-state="up"] { background: var(--up-text); }
.dot[data-state="down"] { background: var(--down-text); }
.dot[data-state="checking"] { background: var(--checking-text); animation: pulse 1.2s infinite; }
.card .dot { position: absolute; top: 14px; right: 14px; }

/* ---------- sub-page ---------- */

.app-head { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 8px; }
.app-head .app-icon { width: 44px; height: 44px; font-size: 22px; }
.app-head-meta { flex: 1; min-width: 200px; }
.app-head-meta .status-line {
  display: flex; align-items: center; gap: 7px;
  color: var(--muted); font-size: 12px; margin-top: 3px;
}
.btn {
  display: inline-block;
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border-strong);
  color: var(--text-2);
  cursor: pointer;
  background: none;
}
.btn:hover { border-color: var(--muted); color: var(--text); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.two-col {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  margin-top: 24px;
}
.desc { color: var(--text-2); max-width: 60ch; }

.panel {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 0;
}
.panel h3 {
  font-size: 11px; font-weight: 600;
  letter-spacing: .06em; text-transform: uppercase;
  color: var(--faint);
  margin: 0; padding: 12px 16px 8px;
}
.link-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  border-top: 1px solid var(--border);
  color: var(--text-2);
}
.link-row:hover { background: var(--surface-2); color: var(--text); }
.link-row .u { margin-left: auto; font: 400 12px/1.2 var(--mono); color: var(--faint); max-width: 55%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link-row .ext { color: var(--faint); font-size: 11px; }

.fact-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  font: 400 12px/1.5 var(--mono);
}
.fact-row .k { color: var(--faint); }
.fact-row .v { color: var(--text-2); text-align: right; overflow-wrap: anywhere; }

/* ---------- system page ---------- */

.sys-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-top: 1px solid var(--border);
}
.sys-row:first-of-type { border-top: none; }
.sys-name { font-weight: 500; width: 160px; }
.sys-meta { margin-left: auto; font: 400 12px/1 var(--mono); color: var(--muted); display: flex; gap: 14px; }
.sys-meta .ok { color: var(--up-text); }
.sys-meta .bad { color: var(--down-text); }

/* ---------- mobile ---------- */

.topbar { display: none; }
.backdrop { display: none; }

@media (max-width: 768px) {
  .shell { flex-direction: column; }
  .sidebar { transform: translateX(-100%); width: 260px; }
  .shell.nav-open .sidebar { transform: translateX(0); }
  .shell.collapsed .sidebar { width: 260px; }
  .main, .shell.collapsed .main { margin-left: 0; padding: 20px 16px 48px; }

  .topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface-1);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
    font-weight: 600;
    letter-spacing: .18em;
    font-size: 14px;
  }
  .backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 15;
  }
  .shell.nav-open .backdrop { display: block; }
  .two-col { grid-template-columns: 1fr; }
}

@media (min-width: 769px) {
  .shell.nav-open .backdrop { display: none; }
}