/* Zenith v1.1 — Style C (Light & Clean) */

:root {
  --bg: #fafaf9;
  --bg-elev: #ffffff;
  --bg-subtle: #f4f4f5;
  --text: #27272a;
  --text-muted: #71717a;
  --border: #e7e5e4;
  --border-strong: #d4d4d8;
  --primary: #0f172a;
  --primary-text: #ffffff;
  --warn-bg: #fef3c7;
  --warn-border: #fcd34d;
  --warn-text: #92400e;
  --danger-bg: #fee2e2;
  --danger-border: #fecaca;
  --danger-text: #b91c1c;
  --success-bg: #dcfce7;
  --success-text: #15803d;
  --neutral-bg: #f1f5f9;
  --neutral-text: #475569;
  --code-bg: #f4f4f5;
  --log-bg: #0c0d10;
  --log-text: #e6e6e6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
}

/* Layout */
nav {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  gap: 20px;
  align-items: center;
}
nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  padding-bottom: 4px;
}
nav a:hover { color: var(--text); }
nav a.active {
  color: var(--text);
  border-bottom: 2px solid var(--text);
  padding-bottom: 2px;
}
nav form { margin-left: auto; }
nav button {
  background: none;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
  padding: 5px 10px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
}
nav button:hover { color: var(--text); border-color: var(--text); }

main { max-width: 960px; margin: 28px auto; padding: 0 24px; }

/* Headings */
h1 { font-size: 22px; font-weight: 700; margin: 0 0 4px 0; }
h2 { font-size: 17px; font-weight: 600; margin: 24px 0 10px 0; }
h3 { font-size: 14px; font-weight: 600; margin: 0 0 8px 0; }

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.back-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
}
.back-link:hover { color: var(--text); }
.subtitle { color: var(--text-muted); margin: 0 0 16px 0; font-size: 13px; }

/* Cards */
.card, .specs-card, .metrics-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}
.card-title { color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; font-size: 11px; }

/* Tables */
table.table {
  width: 100%;
  border-collapse: collapse;
}
table.table th, table.table td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
table.table th { color: var(--text-muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
table.table tr:last-child td { border-bottom: none; }
table.table-key-value td:first-child { color: var(--text-muted); width: 40%; }
table.table-compact th, table.table-compact td { padding: 5px 8px; font-size: 12px; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Badges */
.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}
.badge-running { background: var(--success-bg); color: var(--success-text); }
.badge-paused { background: var(--warn-bg); color: var(--warn-text); }
.badge-stopped { background: var(--neutral-bg); color: var(--neutral-text); }
.badge-failed { background: var(--danger-bg); color: var(--danger-text); }
.badge-pending { background: var(--neutral-bg); color: var(--neutral-text); }

/* Buttons */
.btn, button.btn {
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 7px 13px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  line-height: 1.2;
}
.btn:hover, button.btn:hover { background: var(--bg-subtle); color: var(--text); border-color: var(--border-strong); }
.btn:focus-visible, button.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
.btn-primary:hover { background: #1e293b; color: var(--primary-text); border-color: #1e293b; }
.btn-warn { background: var(--warn-bg); border-color: var(--warn-border); color: var(--warn-text); }
.btn-warn:hover { background: #fde68a; color: var(--warn-text); border-color: var(--warn-border); }
.btn-danger { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger-text); }
.btn-danger:hover { background: #fecdd3; color: var(--danger-text); border-color: var(--danger-border); }
.btn-ghost { background: transparent; border: 1px solid transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); border-color: var(--border); background: transparent; }
.action-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }

/* Forms */
form p { margin: 12px 0; }
label { font-size: 13px; color: var(--text); display: block; }
input[type=text], input[type=email], input[type=password], input[type=number],
textarea, select {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  background: var(--bg-elev);
  color: var(--text);
  margin-top: 4px;
}
input[type=checkbox] { width: auto; margin-right: 6px; }
textarea { font-family: ui-monospace, "SF Mono", Menlo, monospace; min-height: 80px; }

/* Code / SSH */
.ssh-box, code, pre {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.ssh-box {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text);
  overflow-x: auto;
  white-space: nowrap;
}

/* Metrics */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.metric-tile { padding: 8px 4px; }
.metric-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.metric-value { font-size: 18px; font-weight: 600; margin-top: 2px; }
.metric-sub { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.metric-bar { height: 4px; background: var(--bg-subtle); border-radius: 2px; margin-top: 8px; overflow: hidden; }
.metric-bar > div { height: 100%; background: var(--primary); transition: width 0.5s ease; }
.metric-procs { margin-top: 14px; }
.metric-paused-msg { color: var(--text-muted); font-style: italic; text-align: center; padding: 20px 0; }

/* Login (centered card) */
.login-page { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 80px); }
.login-card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px; padding: 32px; max-width: 360px; width: 100%; }
.login-card h1 { margin-bottom: 16px; }

/* Notices */
.notice {
  padding: 10px 14px;
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 6px;
  margin: 16px 0;
  font-size: 13px;
  color: var(--warn-text);
}
.notice-error { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger-text); }

/* Logs */
.log-controls { display: flex; gap: 16px; align-items: center; font-size: 12px; color: var(--text-muted); }
.log-controls input[type=number] { width: 80px; }
pre.log-pane {
  background: var(--log-bg);
  color: var(--log-text);
  border-radius: 8px;
  padding: 14px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  line-height: 1.5;
  max-height: 70vh;
  overflow-y: auto;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Two-column form layout */
.form-two-col { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
@media (max-width: 720px) { .form-two-col { grid-template-columns: 1fr; } }
.form-summary { background: var(--bg-subtle); border: 1px solid var(--border); border-radius: 8px; padding: 16px; height: fit-content; }
.form-summary h3 { margin-top: 0; }