:root {
  --bg: #0f1115;
  --bg-panel: #171a21;
  --bg-panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e8eb;
  --text-dim: #9aa1ad;
  --accent: #4fd1c5;
  --accent-2: #7c9cff;
  --danger: #ff6b6b;
  --success: #59d18a;
  --warn: #f2b84b;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

#app { min-height: 100vh; display: flex; flex-direction: column; }

/* ---------- Login ---------- */
.login-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px;
  width: 320px;
}
.login-box h1 {
  font-size: 18px;
  margin: 0 0 4px;
  letter-spacing: 0.5px;
}
.login-box p.sub { color: var(--text-dim); font-size: 13px; margin: 0 0 20px; }

/* ---------- Layout ---------- */
header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}
header.topbar .brand { font-weight: 600; letter-spacing: 0.5px; }
header.topbar .brand span { color: var(--accent); }

nav.tabs {
  display: flex;
  gap: 4px;
  padding: 10px 20px 0;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
}
nav.tabs button {
  background: transparent;
  border: none;
  color: var(--text-dim);
  padding: 10px 16px;
  border-radius: 8px 8px 0 0;
  cursor: pointer;
  font-size: 14px;
}
nav.tabs button.active {
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-bottom: 1px solid var(--bg);
  margin-bottom: -1px;
}

main { flex: 1; padding: 24px; max-width: 1100px; width: 100%; margin: 0 auto; }

/* ---------- Common elements ---------- */
h2 { margin-top: 0; font-size: 20px; }
h3 { font-size: 15px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 18px;
}

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 4px; }
input[type=text], input[type=password], input[type=date], select, textarea {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
  width: 100%;
  font-family: inherit;
}
textarea.code { font-family: var(--mono); font-size: 13px; min-height: 220px; }
input[type=file] { color: var(--text-dim); font-size: 13px; }

.field { margin-bottom: 12px; }

button {
  background: var(--accent);
  color: #08201d;
  border: none;
  border-radius: 6px;
  padding: 9px 16px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
button.secondary { background: var(--bg-panel-2); color: var(--text); border: 1px solid var(--border); }
button.danger { background: var(--danger); color: #2b0000; }
button.small { padding: 5px 10px; font-size: 12px; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.card {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
}
.card:hover { border-color: var(--accent-2); }
.card .name { font-weight: 600; margin-bottom: 4px; }
.card .meta { color: var(--text-dim); font-size: 12px; }
.card.add-card { display: flex; align-items: center; justify-content: center; color: var(--text-dim); border-style: dashed; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--text-dim); font-weight: 500; font-size: 12px; text-transform: uppercase; }
tr:hover td { background: rgba(255,255,255,0.02); }

.badge { padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.success { background: rgba(89,209,138,0.15); color: var(--success); }
.badge.failed { background: rgba(255,107,107,0.15); color: var(--danger); }

.flow-list { list-style: none; padding: 0; margin: 0; }
.flow-list li {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-panel-2); border: 1px solid var(--border);
  border-radius: 6px; padding: 8px 10px; margin-bottom: 6px;
}
.flow-list li .idx { color: var(--accent); font-family: var(--mono); width: 20px; }
.flow-list li .grow { flex: 1; }
.flow-list li .actions { display: flex; gap: 4px; }

.checklist { max-height: 220px; overflow-y: auto; border: 1px solid var(--border); border-radius: 6px; padding: 8px; }
.checklist label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); padding: 4px 0; margin: 0; }
.checklist input[type=checkbox] { width: auto; }

.error-msg { color: var(--danger); font-size: 13px; margin: 8px 0; }
.success-msg { color: var(--success); font-size: 13px; margin: 8px 0; }
.hint { color: var(--text-dim); font-size: 12px; margin-top: 4px; }

pre.log {
  background: #0a0c10; border: 1px solid var(--border); border-radius: 6px;
  padding: 12px; font-family: var(--mono); font-size: 12px; white-space: pre-wrap;
  max-height: 260px; overflow-y: auto; color: var(--text-dim);
}

.back-link { color: var(--accent-2); cursor: pointer; font-size: 13px; margin-bottom: 12px; display: inline-block; }
.close-x { cursor: pointer; color: var(--text-dim); font-size: 18px; float: right; }
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.modal { background: var(--bg-panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px; width: 380px; }