:root {
  --bg: #f5f7f5;
  --panel: #ffffff;
  --border: #e2e8e3;
  --text: #17201b;
  --muted: #5c6b62;
  --faint: #8a978f;
  --green: #2f9e44;
  --green-soft: #e7f5ea;
  --orange: #d9480f;
  --orange-soft: #fff1e8;
  --grey: #6c7a86;
  --grey-soft: #eef1f4;
  --blue: #4c6f8a;
  --blue-soft: #eaf1f6;
  --sans: Poppins, system-ui, sans-serif;
  --mono: 'Geist Mono', ui-monospace, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 var(--sans); }
a { color: var(--green); }
button { font: inherit; cursor: pointer; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.loading { padding: 80px; text-align: center; color: var(--muted); }

/* Sign in */
.login { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 40px; width: 100%; max-width: 420px; text-align: center; box-shadow: 0 8px 30px rgba(0,0,0,.05); }
.login-card h1 { margin: 8px 0 4px; font-size: 26px; }
.login-card p { margin: 0 0 24px; color: var(--muted); }
.brand-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .24em; color: var(--green); }
#gsi-button { display: flex; justify-content: center; min-height: 44px; }
.error { color: var(--orange); margin-top: 16px; }

/* Shell */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.side { background: #12201a; color: #d9e4dc; padding: 24px 16px; display: flex; flex-direction: column; gap: 4px; }
.side .brand { padding: 0 12px 24px; }
.side .brand b { display: block; color: #fff; font-size: 19px; }
.side .brand span { font-size: 11px; letter-spacing: .2em; color: #7fd38a; font-weight: 700; }
.nav a { display: block; padding: 9px 12px; border-radius: 8px; color: #c4d2c8; text-decoration: none; font-weight: 500; }
.nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav a.on { background: rgba(127,211,138,.14); color: #fff; }
.side .spacer { flex: 1; }
.side .me { font-size: 13px; padding: 12px; border-top: 1px solid rgba(255,255,255,.08); }
.side .me button { margin-top: 8px; background: none; border: 1px solid rgba(255,255,255,.2); color: #d9e4dc; border-radius: 6px; padding: 4px 10px; font-size: 12px; }
.side .tv { font-size: 13px; padding: 0 12px 12px; }
.side .tv a { color: #7fd38a; }
main { padding: 32px 40px 60px; max-width: 1280px; width: 100%; }
h2 { margin: 0 0 4px; font-size: 26px; }
.sub { margin: 0 0 24px; color: var(--muted); }

/* Cards and tables */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 28px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.card .label { font-size: 13px; color: var(--muted); }
.card .value { font-family: var(--mono); font-size: 26px; font-weight: 600; margin-top: 2px; }
.card .value small { font-size: 14px; color: var(--muted); font-weight: 500; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; margin-bottom: 24px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.panel-head h3 { margin: 0; font-size: 16px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 18px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); background: #fafbfa; }
tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-family: var(--mono); }
tr.click { cursor: pointer; }
tr.click:hover td { background: #f8fbf8; }
.site-cell b { display: block; font-weight: 600; }
.site-cell span { font-size: 13px; color: var(--muted); }

.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 999px; white-space: nowrap; }
.badge i { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge.normal, .badge.ready { background: var(--green-soft); color: var(--green); }
.badge.fault, .badge.blocked { background: var(--orange-soft); color: var(--orange); }
.badge.offline { background: var(--orange-soft); color: #c2410c; }
.badge.planned, .badge.no_ppa, .badge.no_data { background: var(--grey-soft); color: var(--grey); }
.src { font-size: 12px; color: var(--blue); font-weight: 600; }

/* Site detail */
.back { display: inline-block; margin-bottom: 14px; color: var(--muted); text-decoration: none; }
.detail { display: grid; grid-template-columns: 1fr 360px; gap: 24px; align-items: start; }
.form { padding: 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 600; color: var(--muted); }
.form label.wide { grid-column: 1 / -1; }
.form input, .form textarea { font: 15px var(--sans); color: var(--text); padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.form input:focus, .form textarea:focus { outline: 2px solid #b7e4c0; border-color: var(--green); }
.form textarea { min-height: 70px; resize: vertical; }
.form .actions { grid-column: 1 / -1; display: flex; gap: 12px; align-items: center; }
.btn { background: var(--green); color: #fff; border: 0; border-radius: 8px; padding: 9px 18px; font-weight: 600; }
.btn:disabled { background: #b8c4bc; cursor: not-allowed; }
.btn.ghost { background: none; color: var(--text); border: 1px solid var(--border); }
.saved { color: var(--green); font-size: 14px; }
.facts { padding: 6px 18px 14px; }
.facts div { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.facts div:last-child { border-bottom: none; }
.facts span:last-child { font-family: var(--mono); text-align: right; }
.history { padding: 4px 18px 12px; font-size: 13px; }
.history div { padding: 8px 0; border-bottom: 1px solid var(--border); }
.history div:last-child { border-bottom: none; }
.history b { font-weight: 600; }

/* Billing */
.toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 18px; }
select { font: 15px var(--sans); padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.note { font-size: 13px; color: var(--muted); }
.reason { font-size: 13px; color: var(--orange); }

@media (max-width: 1100px) {
  .detail { grid-template-columns: 1fr; }
  .form { grid-template-columns: 1fr; }
  main { padding: 24px; }
}
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .side { flex-direction: row; flex-wrap: wrap; align-items: center; padding: 12px 16px; }
  .side .brand { padding: 0 12px 0 0; }
  .side .spacer, .side .tv { display: none; }
  .nav { display: flex; gap: 2px; }
}