:root {
  --bg: #0f141a;
  --card: #161d26;
  --fg: #e8eaed;
  --muted: #9aa4b0;
  --accent: #4da3ff;
  --line: #26303c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.5 -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; background: var(--bg);
}
header h1 { font-size: 18px; margin: 0; }
main { max-width: 760px; margin: 0 auto; padding: 20px; }
section {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 16px 18px; margin-bottom: 16px;
}
h2 { font-size: 16px; margin: 0 0 8px; color: var(--accent); }
h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .04em;
     color: var(--muted); margin: 14px 0 6px; }
ul.artifacts { list-style: none; margin: 0; padding: 0; }
ul.artifacts li {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; padding: 10px 0; border-top: 1px solid var(--line);
}
ul.artifacts li:first-child { border-top: none; }
ul.artifacts a { color: var(--fg); text-decoration: none; font-weight: 500; }
ul.artifacts a:hover { color: var(--accent); }
.date { color: var(--muted); font-size: 13px; white-space: nowrap; }
.login { text-align: center; max-width: 340px; margin: 60px auto; }
.login p { color: var(--muted); margin-bottom: 20px; }
.gbtn {
  display: inline-block; padding: 12px 20px; border-radius: 8px;
  background: #fff; color: #1a1a1a; text-decoration: none; font-weight: 600;
}
.gbtn:hover { background: #e9e9e9; }
.who { display: flex; align-items: center; gap: 12px;
       color: var(--muted); font-size: 14px; }
input, button {
  font: inherit; padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--bg); color: var(--fg);
}
button { background: var(--accent); color: #06121f; border: none; font-weight: 600;
         cursor: pointer; }
.logout button { background: transparent; color: var(--muted);
                 border: 1px solid var(--line); padding: 6px 12px; }
.error { color: #e85149; max-width: 320px; margin: 0 auto 16px; text-align: center; }
.loading { color: var(--muted); text-align: center; margin: 40px; }