:root {
  /* Light theme — matches the SRE console's light default. */
  --bg: #f6f8fa; --panel: #ffffff; --panel-2: #eaeef2; --border: #d0d7de;
  --text: #1f2328; --muted: #59636e; --accent: #0969da; --accent-2: #1a7f37;
  --warn: #9a6700; --radius: 10px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15.5px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.app { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 268px; flex-shrink: 0; background: var(--panel);
  border-right: 1px solid var(--border); display: flex; flex-direction: column;
  padding: 18px 14px;
}
.brand { display: flex; gap: 12px; align-items: center; padding: 4px 8px 18px; }
.logo { font-size: 32px; }
.brand-name { font-weight: 600; font-size: 17px; }
.brand-sub { color: var(--muted); font-size: 12.5px; }
.nav { display: flex; flex-direction: column; gap: 3px; }
.nav-item {
  display: flex; align-items: center; gap: 12px; width: 100%;
  background: transparent; border: 0; color: var(--text); cursor: pointer;
  padding: 11px 12px; border-radius: 8px; font-size: 15.5px; text-align: left;
}
.nav-item:hover { background: var(--panel-2); }
.nav-item.active { background: var(--panel-2); color: var(--text); font-weight: 600; box-shadow: inset 3px 0 0 var(--accent); }
.nav-icon { font-size: 19px; width: 24px; text-align: center; }
.serve-card {
  margin-top: auto; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px; font-size: 12px;
}
.serve-label { color: var(--muted); text-transform: uppercase; font-size: 10px; letter-spacing: .5px; }
.serve-url { display: block; margin: 4px 0; color: var(--accent); word-break: break-all; }
.serve-alias { margin-top: 4px; }
.serve-note { color: var(--muted); margin-top: 6px; line-height: 1.4; }

/* Content */
.content { flex: 1; padding: 30px 40px; max-width: 1160px; }
.pane-head { display: flex; align-items: center; gap: 14px; }
.pane-head h1 { font-size: 27px; margin: 0; }
.lead { color: var(--muted); margin: 8px 0 24px; font-size: 15.5px; }
.badge { font-size: 11px; padding: 3px 8px; border-radius: 999px; font-weight: 600; }
.badge-phase { background: rgba(68,147,248,.15); color: var(--accent); border: 1px solid rgba(68,147,248,.3); }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
}
.card-wide { grid-column: 1 / -1; }
.card h2 { font-size: 17px; margin: 0 0 10px; }
.muted { color: var(--muted); }
.todo {
  margin-top: 12px; font-size: 12px; color: var(--warn);
  background: rgba(210,153,34,.08); border: 1px dashed rgba(210,153,34,.35);
  border-radius: 8px; padding: 7px 10px;
}
.todo code, .muted code, .lead code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }

.serve-banner {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; margin-bottom: 18px;
}
.serve-url.big { font-size: 15px; }
.alias-pill { background: rgba(46,160,67,.15); color: var(--accent-2); border: 1px solid rgba(46,160,67,.35); padding: 4px 12px; border-radius: 999px; font-weight: 600; }

/* ── Phase 1: forms, tables, registry ── */
.fld { display: block; margin: 10px 0; font-size: 12px; color: var(--muted); }
.fld textarea, .fld input {
  display: block; width: 100%; margin-top: 4px; background: var(--bg);
  border: 1px solid var(--border); border-radius: 7px; color: var(--text);
  padding: 8px 10px; font: inherit; font-size: 13px; resize: vertical;
}
.fld input:focus, .fld textarea:focus { outline: none; border-color: var(--accent); }
.row { display: flex; gap: 10px; }
.fld.sm { width: 90px; flex: none; }
.fld.grow { flex: 1; }
.actions { display: flex; align-items: center; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.btn {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 7px; padding: 7px 12px; font-size: 13px; cursor: pointer;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.btn.danger { color: #f85149; }
.btn.xs { padding: 2px 7px; font-size: 11px; }
.status { font-size: 12px; color: var(--muted); }
.status.ok { color: var(--accent-2); }
.status.warn { color: var(--warn); }
.table-wrap { overflow: auto; margin-top: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 12px; }
th, td { text-align: left; padding: 5px 9px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 10px; letter-spacing: .4px; }
table.reg td { vertical-align: top; }
.muted.sm, .sm { font-size: 11px; }
.tag { background: var(--panel-2); border: 1px solid var(--border); border-radius: 999px; padding: 2px 9px; font-size: 11px; }
.out { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 10px; font-size: 12px; white-space: pre-wrap; max-height: 240px; overflow: auto; margin-top: 10px; }

/* ── Demo golden-path flow ── */
.demo-flow { display: flex; flex-direction: column; gap: 4px; max-width: 760px; }
.dstep { display: flex; gap: 12px; align-items: flex-start; background: var(--panel); border: 1px solid var(--border); border-left: 3px solid var(--border); border-radius: 10px; padding: 12px 16px; }
.dstep.done { border-left-color: var(--accent-2); }
.dnum { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--panel-2); display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 13px; }
.dstep.done .dnum { background: rgba(46,160,67,.2); color: var(--accent-2); }
.dbody { flex: 1; }
.dstat { margin-top: 4px; font-size: 12px; }
.dstat.ok { color: var(--accent-2); }
.darrow { color: var(--muted); margin-left: 13px; font-size: 14px; line-height: 1; }
.dstat code, .dbody code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }