:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface-2: #243044;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --radius: 10px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

.auth-gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}
.auth-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}
.auth-card h1 { margin: 0 0 0.5rem; }
.auth-card p { color: var(--muted); margin-top: 0; }

.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  height: 100vh;
  position: sticky;
  top: 0;
  overflow-y: auto;
}
.brand {
  font-size: 1.25rem;
  font-weight: 700;
  padding: 0 0.5rem;
}
.brand span { color: var(--primary); }
.nav { display: flex; flex-direction: column; gap: 0.25rem; flex: 1; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
}
.nav a.active, .nav a:hover {
  background: var(--surface-2);
  color: var(--text);
}

.main-content {
  padding: 2rem;
  height: 100vh;
  overflow-y: auto;
}

/* ── Environment variables dropdown ───────────────────────────────────── */
.env-vars-dropdown {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
}
.env-vars-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--surface-2);
  border: none;
  color: var(--text);
  padding: 0.75rem 1rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  transition: background 0.15s;
}
.env-vars-toggle:hover { background: var(--border); }
.env-vars-toggle-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.env-vars-chevron {
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.env-vars-toggle[aria-expanded="true"] .env-vars-chevron {
  transform: rotate(180deg);
}
.env-vars-body {
  display: none;
  border-top: 1px solid var(--border);
}
.env-vars-body.open { display: block; }
.env-vars-scroll {
  max-height: calc(4 * 58px);   /* 4 rows × ~58px each */
  overflow-y: auto;
  padding: 0.85rem 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.env-vars-scroll::-webkit-scrollbar { width: 5px; }
.env-vars-scroll::-webkit-scrollbar-track { background: transparent; }
.env-vars-scroll::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

/* ── Check log type containers ─────────────────────────────────────────── */
.check-log-group {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 0.75rem;
}
.check-log-group:last-child { margin-bottom: 0; }
.check-log-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  gap: 0.5rem;
}
.check-log-group-header .clg-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  font-weight: 600;
}
.check-log-group-header .clg-meta {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 400;
}
.check-log-expand-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  transition: border-color 0.15s, color 0.15s;
}
.check-log-expand-btn:hover { border-color: var(--primary); color: var(--primary); }
.clg-filter-opt {
  background: var(--surface) !important;
  color: var(--text) !important;
}
.clg-filter-opt:hover { background: var(--surface-2) !important; }
.check-log-scroll {
  overflow-y: auto;
  transition: max-height 0.25s ease;
}
.check-log-scroll.collapsed { max-height: 268px; } /* ~6 rows × ~44px + thead */
.check-log-scroll.expanded  { max-height: 672px; } /* ~15 rows × ~44px + thead */
.check-log-scroll table { margin: 0; }
.check-log-scroll th,
.check-log-scroll td {
  font-size: 0.82rem;
  padding: 0.5rem 0.65rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-header h1 { margin: 0; font-size: 1.6rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.field { margin-bottom: 1rem; }
.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  font: inherit;
}
.field textarea { min-height: 90px; resize: vertical; }

.btn {
  border: none;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font: inherit;
  cursor: pointer;
}
.btn.primary { background: var(--primary); color: white; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn.danger { background: var(--danger); color: white; }
.btn.small { padding: 0.35rem 0.65rem; font-size: 0.85rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.table-wrap { overflow: auto; }
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
}
th { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
tr:hover td { background: rgba(255,255,255,0.02); }
.link-btn {
  color: var(--primary);
  text-decoration: none;
  margin-right: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font: inherit;
}

.filter-btn {
  padding: 5px 14px;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--surface, #fff);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn-active {
  background: var(--primary);
  color: #fff !important;
  border-color: var(--primary);
}

.variable-builder { display: flex; flex-direction: column; gap: 1rem; }
.variable-row {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--bg);
}
.variable-row-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}
.variable-row-header strong { font-size: 0.95rem; }
.row-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}
.generator-panel {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border);
}
.generator-panel.hidden-panel { display: none; }
.checkbox-inline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.env-fields { display: flex; flex-direction: column; gap: 0.75rem; }
.env-field-row {
  display: grid;
  grid-template-columns: 36px 180px 1fr;
  gap: 0.75rem;
  align-items: center;
}
.env-field-row.readonly { opacity: 0.85; }
.env-key-label {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  color: var(--muted);
  word-break: break-all;
}
.tab-fill-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--primary);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
}
.tab-fill-btn:hover { border-color: var(--primary); }
.tab-fill-btn:focus { outline: 2px solid var(--primary); outline-offset: 2px; }

.input-wrap {
  position: relative;
}
.input-wrap input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  font: inherit;
}
.input-wrap input:focus { border-color: var(--primary); outline: none; }
.input-wrap input:read-only { background: var(--surface-2); color: var(--muted); }
.ghost-placeholder {
  position: absolute;
  left: 0.75rem;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  opacity: 0.55;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font: inherit;
}
.input-wrap.has-value .ghost-placeholder,
.input-wrap.is-typing .ghost-placeholder { display: none; }

.tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.tab-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  font: inherit;
}
.tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}
.tab-panel.hidden { display: none; }

.service-picker {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 220px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  background: var(--bg);
}
.service-picker label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 1000;
}
.toast.error { border-color: var(--danger); }
.toast.success { border-color: var(--success); }

.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 2rem;
}

/* Hide native number spinner on position input — custom +/- buttons used instead */
input[type=number].var-position::-webkit-inner-spin-button,
input[type=number].var-position::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number].var-position { -moz-appearance: textfield; }

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
    height: auto;
    overflow: visible;
  }
  .sidebar {
    height: auto;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .main-content {
    height: auto;
    overflow-y: visible;
  }
  .env-field-row { grid-template-columns: 36px 1fr; }
  .env-key-label { grid-column: 2; margin-top: -0.35rem; margin-bottom: 0.25rem; }
}