:root {
  --bg: #eef2f6;
  --panel: #ffffff;
  --text: #17212f;
  --muted: #657286;
  --line: #d8e0ea;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --danger: #b42318;
  --shadow: 0 18px 50px rgba(23, 33, 47, .10);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.shell { width: min(1480px, calc(100% - 32px)); margin: 0 auto; padding: 24px 0 40px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.eyebrow { color: var(--muted); font-size: 13px; font-weight: 700; text-transform: uppercase; }
h1, h2 { margin: 0; letter-spacing: 0; }
h1 { font-size: 32px; }
h2 { font-size: 18px; }
.muted { color: var(--muted); }

.grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(320px, .8fr); gap: 18px; align-items: start; }
.panel, .auth-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
}
.wide { margin-top: 18px; }
.hero-panel { min-height: 420px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.badge { border: 1px solid var(--line); border-radius: 999px; padding: 5px 10px; color: var(--muted); font-size: 13px; font-weight: 700; }
.badge.ok { color: #05603a; border-color: #84caad; background: #ecfdf3; }
.badge.bad { color: var(--danger); border-color: #fda29b; background: #fff1f3; }

.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0; }
button {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--text);
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { background: var(--accent-strong); }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }

.stack { display: grid; gap: 12px; }
label { display: grid; gap: 6px; font-weight: 700; color: #314056; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px 11px;
  font: inherit;
  background: #fff;
}
textarea { resize: vertical; }
.control-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }

.console {
  height: 260px;
  overflow: auto;
  background: #111827;
  color: #d1fae5;
  border-radius: 8px;
  padding: 12px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
}

.auth-panel { max-width: 460px; margin: 60px auto; }
.logout { display: flex; align-items: center; gap: 10px; }
.alert { padding: 12px 14px; border-radius: 8px; margin-bottom: 16px; border: 1px solid var(--line); background: #fff; }
.alert.error { border-color: #fda29b; color: var(--danger); }

.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; min-width: 860px; background: #fff; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 14px; }
th { background: #f8fafc; color: #475467; }

@media (max-width: 900px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .grid { grid-template-columns: 1fr; }
  .control-grid { grid-template-columns: 1fr; }
}