/* Python Host — clean minimal light design system. Self-contained, no external assets. */
:root {
  --bg: #fcfcfd;
  --surface: #ffffff;
  --text: #1c2024;
  --muted: #6b7280;
  --faint: #737b86;
  --border: #ececf0;
  --border-strong: #dcdfe4;
  --accent: #4f46e5;
  --accent-weak: #eef0fe;
  --green: #15803d;   --green-bg: #eaf6ee;
  --amber: #b45309;   --amber-bg: #fdf3e4;
  --gray: #6b7280;    --gray-bg: #f1f2f4;
  --red: #b42318;     --red-bg: #fdecea;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
  --radius: 10px;
  --maxw: 960px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.6rem; font-weight: 650; letter-spacing: -.01em; margin: 0 0 .25rem; }
h2 { font-size: 1.05rem; font-weight: 600; margin: 2rem 0 .75rem; }
p { color: var(--muted); }
code { font-family: var(--mono); font-size: .86em; }

/* ---- top nav ---- */
.topnav {
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.topnav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem;
  height: 58px; display: flex; align-items: center; gap: 1.5rem;
}
.brand { font-weight: 650; color: var(--text); font-size: 1rem; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: .25rem; }
.nav-links a {
  color: var(--muted); padding: .4rem .7rem; border-radius: 7px; font-weight: 500; font-size: .92rem;
}
.nav-links a:hover { color: var(--text); background: var(--gray-bg); text-decoration: none; }
.nav-links a.active { color: var(--accent); background: var(--accent-weak); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: .8rem; }
.nav-user { color: var(--faint); font-size: .86rem; }

/* ---- layout ---- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 2.25rem 1.5rem 4rem; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.75rem; }
.page-head .sub { color: var(--faint); font-size: .9rem; margin-top: .15rem; }

/* ---- cards ---- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.card + .card { margin-top: .75rem; }
.card-pad { padding: 1.1rem 1.25rem; }

/* app list rows */
.applist { display: flex; flex-direction: column; gap: .6rem; }
.approw {
  display: flex; align-items: center; gap: 1rem; padding: 1rem 1.25rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); transition: border-color .12s;
}
.approw:hover { border-color: var(--border-strong); }
.approw .name { font-weight: 600; color: var(--text); }
.approw .url { color: var(--faint); font-size: .85rem; font-family: var(--mono); }
.approw .grow { flex: 1; min-width: 0; }
.approw .url a { color: var(--accent); }
.approw .url a:hover { text-decoration: underline; }

/* ---- status pills ---- */
.pill {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .78rem; font-weight: 600; padding: .2rem .6rem; border-radius: 999px;
  text-transform: capitalize; white-space: nowrap;
}
.pill::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; background: currentColor; }
.pill.awake    { color: var(--green); background: var(--green-bg); }
.pill.sleeping { color: var(--gray);  background: var(--gray-bg); }
.pill.building { color: var(--amber); background: var(--amber-bg); }
.pill.error    { color: var(--red);   background: var(--red-bg); }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .4rem; cursor: pointer;
  font: inherit; font-size: .9rem; font-weight: 550; line-height: 1;
  padding: .55rem .9rem; border-radius: 8px;
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  text-decoration: none; transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--gray-bg); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #4338ca; }
.btn.danger { color: var(--red); border-color: #f0c8c2; background: var(--surface); }
.btn.danger:hover { background: var(--red-bg); }
.btn.ghost { border-color: transparent; background: transparent; color: var(--muted); }
.btn.ghost:hover { background: var(--gray-bg); color: var(--text); }
.btn.sm { padding: .4rem .65rem; font-size: .82rem; }

/* ---- forms ---- */
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-weight: 550; font-size: .9rem; margin-bottom: .35rem; }
.field .hint { color: var(--faint); font-size: .82rem; margin-top: .3rem; }
.input, textarea, select {
  width: 100%; padding: .6rem .7rem; font: inherit; font-size: .92rem; color: var(--text);
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 8px;
}
.input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-weak);
}
textarea { font-family: var(--mono); font-size: .86rem; resize: vertical; }

/* ---- tables ---- */
.table { width: 100%; border-collapse: collapse; }
.table th {
  text-align: left; font-size: .76rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .04em; color: var(--faint); padding: .55rem .9rem; border-bottom: 1px solid var(--border);
}
.table td { padding: .75rem .9rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }
.table .row-actions { display: flex; gap: .4rem; justify-content: flex-end; }

/* ---- stat cards (admin overview) ---- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: .9rem; }
.stat { padding: 1.2rem 1.3rem; }
.stat .num { font-size: 1.9rem; font-weight: 680; letter-spacing: -.02em; line-height: 1.1; }
.stat .label { color: var(--faint); font-size: .82rem; margin-top: .2rem; }

/* ---- log viewer ---- */
.log {
  background: #0d1117; color: #d7dde4; font-family: var(--mono); font-size: .82rem;
  line-height: 1.5; padding: 1rem 1.1rem; border-radius: var(--radius);
  max-height: 24rem; overflow: auto; white-space: pre-wrap; word-break: break-word;
}

/* ---- misc ---- */
.subnav { display: flex; gap: .3rem; border-bottom: 1px solid var(--border); margin-bottom: 1.75rem; }
.subnav a { padding: .55rem .8rem; color: var(--muted); font-weight: 500; font-size: .92rem; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.subnav a:hover { color: var(--text); text-decoration: none; }
.subnav a.active { color: var(--accent); border-bottom-color: var(--accent); }
.empty { text-align: center; padding: 3.5rem 1rem; color: var(--faint); }
.empty .big { font-size: 1.05rem; color: var(--muted); margin-bottom: .3rem; }
.flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1.25rem; font-size: .9rem; }
.flash.error { background: var(--red-bg); color: var(--red); border: 1px solid #f0c8c2; }
.flash.success { background: var(--green-bg); color: var(--green); border: 1px solid #bfe3c9; }
.danger-zone { border: 1px solid #f0c8c2; border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-top: 2.5rem; }
.danger-zone h2 { margin-top: 0; color: var(--red); }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.stack > * + * { margin-top: 1rem; }
.divider-or { text-align: center; color: var(--faint); font-size: .82rem; margin: 1rem 0; position: relative; }
.card-auth { max-width: 400px; margin: 0 auto; }

/* ---- hero / landing ---- */
.hero { max-width: 560px; margin: 3.5rem auto 2.25rem; text-align: center; }
.hero h1 { font-size: 2.1rem; letter-spacing: -.02em; margin-bottom: .6rem; }
.hero .lead { font-size: 1.05rem; color: var(--muted); margin: 0 auto; max-width: 33rem; line-height: 1.6; }
.hero-points { display: flex; gap: 1.4rem; justify-content: center; flex-wrap: wrap;
  margin-top: 1.5rem; color: var(--muted); font-size: .9rem; }
.btn:focus-visible, .nav-links a:focus-visible, .subnav a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.table-wrap { overflow-x: auto; }

@media (max-width: 640px) {
  .topnav-inner { padding: 0 1rem; gap: .6rem; }
  .nav-user { display: none; }
  .nav-links { gap: .05rem; }
  .nav-links a { padding: .4rem .5rem; font-size: .85rem; }
  .container { padding: 1.5rem 1rem 3rem; }
  .page-head { flex-direction: column; align-items: flex-start; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .approw { flex-wrap: wrap; }
  .hero { margin: 2rem auto 1.75rem; }
  .hero h1 { font-size: 1.7rem; }
  .hero-points { gap: .8rem; font-size: .85rem; }
}