:root {
  --bg: #f5f6f8; --card: #ffffff; --ink: #1c2330; --muted: #6b7280;
  --line: #e3e6ea; --accent: #2b6cb0; --accent-ink: #fff;
  --warn: #b7791f; --error: #c53030; --ok: #2f855a;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.55 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
main { max-width: 980px; margin: 0 auto; padding: 24px 18px 64px; }
h1 { font-size: 1.6rem; margin: 0 0 .4em; }
h2 { font-size: 1.2rem; margin: 1.2em 0 .5em; }
h3 { font-size: 1.02rem; margin: 1em 0 .4em; }
.muted { color: var(--muted); }
.small { font-size: .85em; }
.num { text-align: right; white-space: nowrap; }
hr { border: 0; border-top: 1px solid var(--line); margin: 1.4em 0; }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 18px;
  background: var(--ink); color: #fff; padding: 10px 18px;
}
.topbar a { color: #fff; }
.brand a { font-weight: 700; font-size: 1.1rem; }
.topbar nav { display: flex; gap: 14px; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.link-btn { background: none; border: 1px solid #ffffff55; color: #fff; border-radius: 6px;
  padding: 4px 10px; cursor: pointer; font: inherit; }
.link-btn:hover { background: #ffffff22; }
.inline { display: inline; }

/* Badges & pills */
.badge { font-size: .78rem; padding: 3px 9px; border-radius: 999px; font-weight: 600; }
.badge-auto { background: #fed7d7; color: #9b2c2c; }
.badge-gated { background: #c6f6d5; color: #22543d; }
.pill { display: inline-block; font-size: .78rem; padding: 2px 9px; border-radius: 999px;
  background: #edf2f7; color: #2d3748; }
.pill-gate { background: #feebc8; color: #9c4221; }

/* Panels & cards */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 16px 18px; margin: 18px 0; }
.subpanel { border-top: 1px solid var(--line); margin-top: 14px; padding-top: 10px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* Tables */
table.grid { width: 100%; border-collapse: collapse; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
table.grid th, table.grid td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.grid thead th { background: #f0f2f5; font-size: .82rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
table.grid tr:last-child td { border-bottom: 0; }

/* Buttons & forms */
button, .btn { background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 7px;
  padding: 8px 14px; cursor: pointer; font: inherit; }
button:hover, .btn:hover { filter: brightness(1.07); text-decoration: none; }
.chk { font-size: .88rem; color: var(--muted); display: inline-flex; align-items: center; gap: 5px; }
.run-form, form.inline { display: inline-flex; align-items: center; gap: 8px;
  background: #f8fafc; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; }
.field { margin: 14px 0; }
.field label { display: block; margin-bottom: 2px; }
textarea, input[type=text], input[type=password], .form-card input {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; font: inherit; }
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; max-width: 760px; }

/* Gate box */
.gate-box { background: #fffaf0; border: 1px solid #f6e05e; border-radius: 9px;
  padding: 12px 14px; margin: 12px 0; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* Files list */
ul.files { margin: .2em 0 .8em; padding-left: 1.1em; }
ul.files li { margin: 2px 0; word-break: break-all; }

/* States */
.error { color: var(--error); font-weight: 600; }
.warn { color: var(--warn); font-weight: 600; }
.ok { color: var(--ok); font-weight: 600; }
.running { color: var(--accent); font-weight: 600; }
.spinner { display: inline-block; width: 12px; height: 12px; border: 2px solid #cbd5e0;
  border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }
pre.stderr { background: #1a202c; color: #e2e8f0; padding: 10px; border-radius: 7px;
  overflow: auto; max-height: 240px; font-size: .82rem; }

/* Login */
.login-body { display: flex; min-height: 100vh; align-items: center; justify-content: center; }
.login-card { background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 28px 30px; width: 320px; box-shadow: 0 8px 30px #0001; display: flex; flex-direction: column; gap: 12px; }
.login-card h1 { margin: 0; text-align: center; }

/* Rendered markdown artifacts */
article.artifact { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 22px 26px; }
article.artifact table { border-collapse: collapse; margin: 1em 0; width: 100%; }
article.artifact th, article.artifact td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; }
article.artifact th { background: #f0f2f5; }
article.artifact code { background: #edf2f7; padding: 1px 5px; border-radius: 4px; font-size: .9em; }
article.artifact pre { background: #1a202c; color: #e2e8f0; padding: 14px; border-radius: 8px; overflow: auto; }
article.artifact pre code { background: none; color: inherit; padding: 0; }
article.artifact blockquote { border-left: 3px solid var(--accent); margin: 1em 0; padding: .2em 1em; color: var(--muted); }
.artifact-title { font-size: 1.1rem; word-break: break-all; color: var(--muted); }