:root {
  --bg: #f4f6f9; --panel: #ffffff; --ink: #142033; --muted: #5d6b80; --line: #dde3ec;
  --brand: #0e5aa7; --brand-ink: #ffffff; --side: #0b2447; --side-ink: #c9d3e3;
  --ok: #1f8a4c; --ok-bg: #e5f5ec; --warn: #a15c00; --warn-bg: #fff2df; --bad: #b42318; --bad-bg: #fdecea;
  --radius: 10px; --shadow: 0 1px 2px rgba(16, 26, 43, .06), 0 4px 16px rgba(16, 26, 43, .05);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1420; --panel: #152033; --ink: #e6ecf5; --muted: #93a1b8; --line: #26344b;
    --side: #0a101b; --side-ink: #aab6ca; --ok-bg: #12351f; --warn-bg: #3a2a10; --bad-bg: #3d1614;
    --ok: #5fd08f; --warn: #f0b259; --bad: #ff8a80; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 "Segoe UI", system-ui, -apple-system, Roboto, sans-serif; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 24px; margin: 0 0 18px; letter-spacing: -.01em; }
h2 { font-size: 15px; margin: 0 0 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
h2.section { margin: 28px 0 12px; }
small { display: block; color: var(--muted); font-size: 12px; }
code { font: 13px/1.4 Consolas, "Cascadia Mono", monospace; }
.muted { color: var(--muted); }

/* Admin shell */
body.admin { display: flex; min-height: 100vh; }
.side { width: 230px; flex: none; background: var(--side); color: var(--side-ink); display: flex; flex-direction: column; padding: 18px 12px; position: sticky; top: 0; height: 100vh; }
.side nav { display: flex; flex-direction: column; gap: 2px; margin-top: 22px; flex: 1; }
.side nav a { color: var(--side-ink); padding: 9px 12px; border-radius: 8px; }
.side nav a:hover { background: rgba(255,255,255,.06); text-decoration: none; }
.side nav a.on { background: var(--brand); color: var(--brand-ink); }
.side .out { display: flex; justify-content: space-between; align-items: center; padding: 8px 12px; border-top: 1px solid rgba(255,255,255,.08); }
.brand { display: flex; gap: 10px; align-items: center; padding: 0 8px; }
.brand b { display: block; color: #fff; font-size: 15px; }
.brand small { color: var(--side-ink); }
.brand .logo { width: 36px; height: 36px; flex: none; }
.brand.big .logo { width: 48px; height: 48px; }
.brand.big b { color: var(--ink); font-size: 18px; }
.brand.big small { color: var(--muted); }
.content { flex: 1; padding: 28px 32px 60px; max-width: 1280px; min-width: 0; }
.center { flex: 1; display: grid; place-items: center; padding: 16px; }

/* Blocks */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px; margin-bottom: 18px; }
.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 18px; }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 18px; }
.grid2.top { gap: 18px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat b { display: block; font-size: 22px; font-variant-numeric: tabular-nums; }
.stat span { color: var(--muted); font-size: 13px; }
.row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); color: var(--ink); align-items: center; }
.row:last-child { border-bottom: 0; }
.note { padding: 11px 14px; border-radius: 8px; margin-bottom: 16px; }
.note.ok { background: var(--ok-bg); color: var(--ok); }
.note.bad { background: var(--bad-bg); color: var(--bad); }
.badge { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.muted { background: var(--line); color: var(--muted); }
.keybox { display: flex; align-items: center; gap: 16px; }
.keybox > div:first-child { flex: 1; }
.keybox code { font-size: 20px; letter-spacing: .04em; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
table.card { padding: 0; overflow: hidden; display: table; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); background: var(--bg); }
tbody tr[data-href] { cursor: pointer; }
tbody tr:hover { background: rgba(14, 90, 167, .05); }
tbody tr:last-child td { border-bottom: 0; }

/* Forms */
label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
label.inline { display: flex; align-items: center; gap: 8px; color: var(--ink); margin-top: 26px; }
label.wide { grid-column: 1 / -1; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px;
  background: var(--panel); color: var(--ink); font: inherit; }
input[type=checkbox], input[type=radio] { display: inline; width: auto; margin: 0; accent-color: var(--brand); }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(14, 90, 167, .35); border-color: var(--brand); }
textarea { resize: vertical; font-family: Consolas, monospace; font-size: 12px; }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 6px 16px; margin-bottom: 14px; }
.checks label, .radios label { display: flex; gap: 8px; align-items: center; color: var(--ink); font-size: 14px; margin: 0; }
.radios { display: flex; flex-direction: column; gap: 8px; padding-top: 22px; }
.radios label:last-child { display: block; color: var(--muted); font-size: 13px; }
.form h2 { margin-top: 10px; }
.actions, .buttons { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.mini button { margin: 4px 6px 0 0; }
button, .button { display: inline-block; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  font: inherit; font-weight: 600; cursor: pointer; }
button:hover, .button:hover { border-color: var(--brand); text-decoration: none; }
button.primary, .button.primary { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); }
button.danger { color: var(--bad); border-color: var(--bad); }
button.link { background: none; border: 0; color: var(--side-ink); padding: 0; font-weight: 400; }
.toolbar { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar input { max-width: 340px; margin: 0; }
.toolbar select { width: auto; margin: 0; }
.toolbar .button { margin-left: auto; }
.login { width: 100%; max-width: 380px; }
.login .brand { padding: 0 0 18px; }
.login button { width: 100%; }

/* Public page */
.public { display: block; }
.hero { max-width: 980px; margin: 0 auto; padding: 72px 20px 40px; }
.hero h1 { font-size: 40px; line-height: 1.15; margin: 14px 0; }
.hero p { font-size: 18px; color: var(--muted); max-width: 680px; }
.cards { max-width: 980px; margin: 0 auto; padding: 0 20px 60px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.cards .card h3 { margin: 0 0 6px; font-size: 17px; }
.cards .card p { margin: 0; color: var(--muted); }
.foot { max-width: 980px; margin: 0 auto; padding: 24px 20px 48px; color: var(--muted); border-top: 1px solid var(--line); }

@media (max-width: 900px) {
  body.admin { flex-direction: column; }
  .side { width: auto; height: auto; position: static; }
  .side nav { flex-direction: row; flex-wrap: wrap; margin-top: 12px; }
  .content { padding: 20px 16px 48px; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  table.card { display: block; overflow-x: auto; }
  .hero h1 { font-size: 30px; }
}