/* cuda-compute admin UI — modern dark theme */

:root {
  --bg:        #0b0d12;
  --bg-soft:   #11141b;
  --panel:     #161a23;
  --panel-2:   #1c2230;
  --border:    #262d3d;
  --border-2:  #323a4d;
  --text:      #e4e7ee;
  --text-dim:  #9aa3b4;
  --text-mute: #6b7587;
  --accent:    #4ade80;
  --accent-2:  #22d3ee;
  --accent-3:  #a78bfa;
  --danger:    #ef4444;
  --warn:      #f59e0b;
  --ok:        #4ade80;
  --info:      #38bdf8;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow:    0 8px 24px rgba(0,0,0,.35);
  --radius:    10px;
  --radius-sm: 6px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1100px 600px at 80% -10%, rgba(74,222,128,.06), transparent 60%),
              radial-gradient(900px 500px at -10% 110%, rgba(167,139,250,.06), transparent 60%),
              var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Top Bar ──────────────────────────────────────────────────── */
header.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: rgba(11,13,18, .85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: ui-monospace, "JetBrains Mono", "Fira Code", monospace;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}
.brand .logo {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: inline-grid;
  place-items: center;
  font-size: 14px;
  color: #061018;
  font-weight: 900;
  box-shadow: 0 0 12px rgba(74,222,128,.4);
}
.brand .ver { color: var(--text-mute); font-size: 11px; font-weight: 400; margin-left: 6px; }
nav.top-nav { display: flex; gap: 8px; align-items: center; }
nav.top-nav a, nav.top-nav .item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  border: 1px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
nav.top-nav a:hover, nav.top-nav .item:hover { color: var(--text); background: var(--panel-2); border-color: var(--border); }
nav.top-nav .user {
  color: var(--accent);
  font-family: ui-monospace, monospace;
  font-size: 12px;
}

/* ─── Layout ──────────────────────────────────────────────────── */
main { max-width: 1400px; margin: 0 auto; padding: 24px; }
h1, h2, h3 { margin: 0; font-weight: 600; }
h1 { font-size: 22px; }
h2 { font-size: 15px; letter-spacing: .02em; text-transform: uppercase; color: var(--text-dim); }
h3 { font-size: 14px; }

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

.row { display: flex; gap: 16px; align-items: center; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.grid { display: grid; gap: 16px; }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }

/* ─── Cards ──────────────────────────────────────────────────── */
.card {
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg-soft) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
}
.card-header h2 { margin: 0; }
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
}
.stat .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-mute);
  display: flex;
  align-items: center;
  gap: 6px;
}
.stat .value {
  font-size: 26px;
  font-weight: 700;
  font-family: ui-monospace, monospace;
  color: var(--text);
  line-height: 1.1;
}
.stat .delta { font-size: 12px; color: var(--text-dim); }
.stat .icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  background: var(--panel-2);
  color: var(--accent);
}
.stat.accent .value { color: var(--accent); }
.stat.warn .value   { color: var(--warn); }
.stat.danger .value { color: var(--danger); }
.stat.info .value   { color: var(--info); }

/* GPU-Box */
.gpu-status {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.dot {
  width: 10px; height: 10px; border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(74,222,128,.15);
}
.dot.ok    { background: var(--ok);   box-shadow: 0 0 0 3px rgba(74,222,128,.18), 0 0 12px rgba(74,222,128,.6); }
.dot.warn  { background: var(--warn); box-shadow: 0 0 0 3px rgba(245,158,11,.18); }
.dot.error { background: var(--danger); box-shadow: 0 0 0 3px rgba(239,68,68,.18); }
.gpu-bar-wrap {
  background: var(--panel-2);
  border-radius: 6px;
  height: 10px;
  overflow: hidden;
  margin-top: 8px;
}
.gpu-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .4s ease;
}
.gpu-meta { display: flex; gap: 18px; font-family: ui-monospace, monospace; font-size: 12px; color: var(--text-dim); margin-top: 10px; }
.gpu-meta b { color: var(--text); font-weight: 600; }

/* Chart */
.chart-wrap { width: 100%; height: 220px; }
.chart-wrap svg { width: 100%; height: 100%; display: block; }
.chart-empty { display: grid; place-items: center; height: 220px; color: var(--text-mute); font-style: italic; }

/* ─── Tabs ──────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin: 28px 0 16px;
}
.tab {
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  transition: color .15s, border-color .15s;
}
.tab:hover { color: var(--text); background: transparent; }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ─── Tables ──────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th {
  color: var(--text-mute);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  background: rgba(255,255,255,.02);
  position: sticky;
  top: 0;
}
tbody tr { transition: background .12s; }
tbody tr:hover { background: rgba(255,255,255,.025); }
tr.disabled td { opacity: 0.55; }
td code, code.inline {
  font-family: ui-monospace, monospace;
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--accent-2);
  border: 1px solid var(--border);
}
td.num { font-family: ui-monospace, monospace; text-align: right; }
.empty { text-align: center; color: var(--text-mute); padding: 28px; font-style: italic; }

.scope-chip {
  display: inline-block;
  padding: 2px 8px;
  margin: 1px 2px;
  border-radius: 12px;
  background: rgba(74,222,128,.08);
  color: var(--accent);
  font-size: 11px;
  font-family: ui-monospace, monospace;
  border: 1px solid rgba(74,222,128,.18);
}
.scope-chip.all { background: rgba(167,139,250,.1); color: var(--accent-3); border-color: rgba(167,139,250,.2); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
}
.badge.ok    { background: rgba(74,222,128,.12);  color: var(--ok);    border: 1px solid rgba(74,222,128,.2);  }
.badge.off   { background: rgba(107,117,135,.15); color: var(--text-mute); border: 1px solid var(--border-2); }
.badge.warn  { background: rgba(245,158,11,.12);  color: var(--warn);  border: 1px solid rgba(245,158,11,.2);  }
.badge.err   { background: rgba(239,68,68,.12);   color: var(--danger);border: 1px solid rgba(239,68,68,.2);   }
.badge.info  { background: rgba(56,189,248,.12);  color: var(--info);  border: 1px solid rgba(56,189,248,.2);  }

/* ─── Buttons ──────────────────────────────────────────────── */
button, .btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: background .15s, border-color .15s, transform .05s;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
button:hover, .btn:hover { background: var(--border); border-color: var(--border-2); }
button:active, .btn:active { transform: translateY(1px); }
button.primary, .btn.primary {
  background: linear-gradient(180deg, var(--accent), #16a34a);
  color: #061018;
  border-color: rgba(74,222,128,.5);
  font-weight: 600;
}
button.primary:hover, .btn.primary:hover { filter: brightness(1.07); }
button.danger, .btn.danger {
  background: rgba(239,68,68,.12);
  color: var(--danger);
  border-color: rgba(239,68,68,.3);
}
button.danger:hover { background: rgba(239,68,68,.2); }
button.ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-dim);
}
button.ghost:hover { color: var(--text); }
button.small { padding: 4px 10px; font-size: 12px; }

/* ─── Forms ──────────────────────────────────────────────── */
label.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
  font-weight: 500;
}
input[type=text], input[type=password], input[type=number], textarea, select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 13px;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(74,222,128,.15);
}
input[readonly] { color: var(--text-dim); background: var(--bg-soft); }

.field-hint { font-size: 11px; color: var(--text-mute); margin-top: 2px; }

/* ─── Login ──────────────────────────────────────────────── */
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-box {
  max-width: 380px;
  width: 100%;
  padding: 32px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.login-box .brand {
  font-size: 20px;
  margin-bottom: 4px;
  display: flex;
  justify-content: center;
}
.login-box .sub { color: var(--text-mute); margin: 4px 0 24px; text-align: center; font-size: 13px; }
.login-box form { display: flex; flex-direction: column; gap: 14px; }
.login-box button[type=submit] {
  margin-top: 6px;
  background: linear-gradient(180deg, var(--accent), #16a34a);
  color: #061018;
  border-color: rgba(74,222,128,.5);
  font-weight: 600;
  padding: 10px 14px;
  justify-content: center;
}
.err {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.3);
  color: var(--danger);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 4px;
}

/* ─── Dialogs ──────────────────────────────────────────────── */
dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 520px;
  width: 92%;
  box-shadow: var(--shadow);
}
dialog[open] { animation: pop .15s ease-out; }
@keyframes pop { from { transform: scale(.98); opacity: 0; } to { transform: scale(1); opacity: 1; } }
dialog::backdrop { background: rgba(0,0,0,.7); backdrop-filter: blur(2px); }
dialog form { display: flex; flex-direction: column; gap: 14px; }
dialog h3 { margin-bottom: 4px; }
dialog .sub { color: var(--text-mute); font-size: 12px; margin-top: -8px; }

.key-display {
  background: var(--bg);
  border: 1px solid var(--accent);
  box-shadow: 0 0 0 3px rgba(74,222,128,.1);
  padding: 14px;
  border-radius: var(--radius-sm);
  word-break: break-all;
  user-select: all;
  font-family: ui-monospace, monospace;
  font-size: 13px;
  color: var(--accent);
  white-space: pre-wrap;
}

/* ─── Activity Feed ──────────────────────────────────────────── */
.feed { display: flex; flex-direction: column; gap: 6px; max-height: 480px; overflow-y: auto; padding-right: 8px; }
.feed-row {
  display: grid;
  grid-template-columns: 80px 1fr auto auto;
  gap: 12px;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  font-size: 12px;
}
.feed-row .ts { color: var(--text-mute); font-family: ui-monospace, monospace; }
.feed-row .op { color: var(--text); font-family: ui-monospace, monospace; }
.feed-row .meta { color: var(--text-dim); font-family: ui-monospace, monospace; }

/* ─── Operations Tab ──────────────────────────────────────── */
.op-family {
  margin-bottom: 18px;
}
.op-family h3 {
  color: var(--accent);
  margin-bottom: 8px;
  font-family: ui-monospace, monospace;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.op-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 6px;
  display: grid;
  grid-template-columns: 220px 1fr auto;
  gap: 14px;
  align-items: center;
}
.op-card .op-id { font-family: ui-monospace, monospace; font-size: 13px; color: var(--accent-2); }
.op-card .op-desc { color: var(--text-dim); font-size: 12px; }
.op-card .op-th { color: var(--text-mute); font-size: 11px; font-family: ui-monospace, monospace; }

/* ─── Util ──────────────────────────────────────────────── */
.flash {
  background: rgba(56,189,248,.1);
  border: 1px solid rgba(56,189,248,.3);
  color: var(--info);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.flash.ok { background: rgba(74,222,128,.1); border-color: rgba(74,222,128,.3); color: var(--ok); }

details summary { cursor: pointer; color: var(--accent); padding: 6px 0; user-select: none; }
details[open] summary { margin-bottom: 8px; }

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: var(--accent);
  border-right-color: var(--accent);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: inline-block;
  vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.copy-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--accent);
  color: #061018;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13px;
  box-shadow: var(--shadow);
  transform: translateY(100px);
  opacity: 0;
  transition: transform .2s, opacity .2s;
  z-index: 100;
}
.copy-toast.show { transform: translateY(0); opacity: 1; }

@media (max-width: 720px) {
  .op-card { grid-template-columns: 1fr; }
  .feed-row { grid-template-columns: 1fr; gap: 4px; }
  nav.top-nav a, nav.top-nav .item { padding: 4px 8px; font-size: 12px; }
  .stat .value { font-size: 22px; }
}