:root {
  --bg: #0b0f14;
  --sidebar: #111820;
  --card: #161f2c;
  --card-hover: #1c2738;
  --border: #2a3548;
  --text: #e8edf4;
  --muted: #7d8da6;
  --accent: #4f8cff;
  --accent-dim: rgba(79, 140, 255, 0.15);
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
}

/* Sidebar */
.sidebar {
  width: 220px;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  padding: 1.25rem 0;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.logo {
  padding: 0 1.25rem 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}

.logo h1 { font-size: 1.1rem; font-weight: 700; }
.logo p { font-size: 0.75rem; color: var(--muted); margin-top: 0.25rem; }

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  width: 100%;
  padding: 0.65rem 1.25rem;
  border: none;
  background: none;
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
  text-align: left;
  transition: 0.15s;
}

.nav-btn:hover { background: var(--card); color: var(--text); }
.nav-btn.active { background: var(--accent-dim); color: var(--accent); border-right: 2px solid var(--accent); }

.sidebar-footer {
  margin-top: auto;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
}

.sidebar-footer .user-badge {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 0.35rem 0;
}

/* Login */
body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
}

.login-card h1 { font-size: 1.5rem; margin-bottom: 0.25rem; }
.login-sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
.login-error { color: var(--err); font-size: 0.85rem; margin-top: 0.75rem; min-height: 1.2em; }

.key-reveal {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
}

.key-reveal code {
  display: block;
  word-break: break-all;
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

/* Main */
.main {
  flex: 1;
  margin-left: 220px;
  padding: 1.5rem 2rem;
  max-width: 1200px;
}

.page { display: none; }
.page.active { display: block; }

.page-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.25rem; }
.page-desc { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.5rem; }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
}

.stat-card .label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-card .value { font-size: 1.75rem; font-weight: 700; margin-top: 0.25rem; }
.stat-card .sub { font-size: 0.8rem; color: var(--muted); margin-top: 0.15rem; }

/* Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.card h3 { font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 1rem; }

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.85rem;
}

.field label { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 0.35rem; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--accent); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: none;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--card-hover); }
.btn-danger { background: var(--err); color: #fff; }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.8rem; }
.btn-group { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th { text-align: left; padding: 0.6rem 0.75rem; color: var(--muted); font-weight: 500; border-bottom: 1px solid var(--border); font-size: 0.75rem; text-transform: uppercase; }
td { padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:hover td { background: var(--card-hover); }

.badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
}
.badge-ok { background: rgba(52, 211, 153, 0.15); color: var(--ok); }
.badge-off { background: rgba(248, 113, 113, 0.15); color: var(--err); }
.badge-warn { background: rgba(251, 191, 36, 0.15); color: var(--warn); }

/* Toolbar */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1rem;
}
.toolbar input { flex: 1; min-width: 200px; max-width: 320px; padding: 0.55rem 0.7rem; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.5rem;
}
.modal h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.modal-actions { display: flex; gap: 0.5rem; margin-top: 1.25rem; justify-content: flex-end; }

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.875rem;
  z-index: 300;
  opacity: 0;
  transform: translateY(10px);
  transition: 0.25s;
  max-width: 360px;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.err { border-color: var(--err); }

.log-card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.log-card-head h3 { margin: 0; flex: 1; }
.step-log {
  margin: 0;
  padding: 0.85rem 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: ui-monospace, "Cascadia Code", "SF Mono", monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}
.step-log.err { border-color: var(--err); }
.step-log .line-err { color: var(--err); }

.preview-box {
  padding: 0.75rem 1rem;
  margin-bottom: 0.75rem;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
}
.preview-box .issue { color: var(--err); }
.preview-box .warn { color: var(--warn); }

.progress-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}
.progress-steps .step {
  font-size: 0.72rem;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.progress-steps .step.active { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.progress-steps .step.done { border-color: var(--ok); color: var(--ok); }
.progress-steps .step.fail { border-color: var(--err); color: var(--err); }

.loading-cell { color: var(--muted); font-style: italic; }
.skeleton td { color: var(--muted); }

.modal-wide { max-width: 560px; }
.err-hint { font-size: 0.75rem; color: var(--err); max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.menu-toggle {
  display: none;
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 150;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}

html[data-theme="light"] {
  --bg: #f0f4f8;
  --sidebar: #fff;
  --card: #fff;
  --card-hover: #f5f8fc;
  --border: #d8e0ea;
  --text: #1a2332;
  --muted: #5a6b82;
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .sidebar { transform: translateX(-100%); transition: 0.2s; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; padding-top: 3rem; }
}

/* API docs */
.api-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 0.75rem;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  overflow-x: auto;
}
.api-block .method { color: var(--ok); font-weight: 700; margin-right: 0.5rem; }
.api-block .path { color: var(--accent); }

.hint { font-size: 0.8rem; color: var(--muted); margin-bottom: 0.75rem; }
.mono { font-family: ui-monospace, monospace; font-size: 0.85em; }
a { color: var(--accent); }

@media (max-width: 768px) {
  .sidebar { width: 100%; position: relative; height: auto; }
  .main { margin-left: 0; padding: 1rem; }
  body { flex-direction: column; }
}