:root {
  --bg: #0f1419;
  --bg2: #171e26;
  --panel: #1c2530;
  --line: #2a3644;
  --text: #e8eef5;
  --muted: #93a1b3;
  --accent: #2f9e78;
  --accent2: #3db892;
  --danger: #dc5a5a;
  --radius: 14px;
  --font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, #1a3a32 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #1a2a44 0%, transparent 50%),
    linear-gradient(180deg, var(--bg), #121820 40%, var(--bg2));
  min-height: 100vh;
}
.install-body { background: var(--bg); color: var(--text); }
.install-body .card { background: var(--panel); color: var(--text); }
.install-body .form-control, .install-body .form-select {
  background: #121820; border-color: var(--line); color: var(--text);
}
.app-header {
  background: rgba(15, 20, 25, 0.85);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 50;
}
.brand { font-size: 1.25rem; font-weight: 700; }
.direction-flow {
  display: flex; align-items: center; gap: 0.55rem;
  color: var(--muted); font-size: 0.85rem; margin-top: 0.2rem;
}
.direction-flow .step { color: var(--accent2); font-weight: 600; }
.status-pill {
  display: inline-flex; align-items: center;
  padding: 0.25rem 0.7rem; border-radius: 999px;
  background: #243041; color: var(--muted); font-size: 0.8rem;
  border: 1px solid var(--line);
}
.status-pill.running, .status-pill.completed { color: #dff7ec; background: #1b3b31; border-color: #2f9e78; }
.status-pill.failed { color: #ffe0e0; background: #3a2222; border-color: var(--danger); }
.panel-card {
  background: rgba(28, 37, 48, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.18);
}
.panel-card h2 { font-size: 1.05rem; margin: 0 0 0.35rem; font-weight: 700; }
.section-help { color: var(--muted); font-size: 0.9rem; margin-bottom: 1rem; }
.form-label { color: var(--muted); font-size: 0.82rem; margin-bottom: 0.25rem; }
.form-control, .form-select { background: #121820; border-color: var(--line); color: var(--text); }
.form-control:focus, .form-select:focus {
  background: #121820; color: var(--text);
  border-color: var(--accent); box-shadow: 0 0 0 0.2rem rgba(47,158,120,0.2);
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent2), var(--accent));
  border: none; font-weight: 600;
}
.btn-primary:hover { filter: brightness(1.05); background: var(--accent); }
.btn-outline-primary { border-color: var(--accent); color: var(--accent2); }
.btn-outline-primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-outline-light, .btn-outline-secondary { border-color: #526074; color: #d7e0ea; }
.btn-outline-danger { border-color: var(--danger); color: #ffb4b4; }
.test-result { font-size: 0.9rem; color: var(--muted); align-self: center; }
.test-result.ok { color: var(--accent2); }
.test-result.bad { color: var(--danger); }
.sticky-panel { position: sticky; top: 5.5rem; }
@media (max-width: 991px) { .sticky-panel { position: static; } }
.analysis-box, .progress-box, .report-box {
  background: #121820; border: 1px solid var(--line); border-radius: 10px; padding: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem;
}
.progress-bar-track {
  height: 12px; background: #243041; border-radius: 999px; overflow: hidden; margin: 0.6rem 0 1rem;
}
.progress-bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #2f9e78, #57d3a4);
  transition: width 0.35s ease;
}
.live-log {
  background: #0c1117; color: #b7c4d4; border: 1px solid var(--line);
  border-radius: 10px; padding: 1rem; min-height: 180px; max-height: 360px;
  overflow: auto; font-size: 0.82rem; margin: 0;
}
.table { color: var(--text); }
.table thead th { color: var(--muted); font-size: 0.78rem; border-color: var(--line); }
.table td { border-color: var(--line); font-size: 0.85rem; }
.table tbody tr { cursor: pointer; }
.table tbody tr:hover { background: rgba(255,255,255,0.03); }
.report-box { text-align: center; }
.report-box .ok-title { color: var(--accent2); font-size: 1.3rem; font-weight: 700; margin-bottom: 0.8rem; }
.space-ok { color: #57d3a4; }
.space-bad { color: #ff8e8e; }