:root {
  --bg: #f1f4f9;
  --card: #ffffff;
  --border: #dde3ec;
  --sidebar: #0f2540;
  --sidebar-soft: #19365c;
  --accent: #ff6a00;
  --text: #1c2430;
  --muted: #6b7684;
  --ok: #1f9d55;
  --warn: #d97706;
  --err: #dc2626;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--bg); color: var(--text); font-size: 15px;
}
.app { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 250px; background: var(--sidebar); color: #dfe7f2;
  display: flex; flex-direction: column; flex-shrink: 0;
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px 12px; border-bottom: 1px solid #22375a;
}
.brand-mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #ffa040);
  color: #fff; font-weight: 800; font-size: 18px;
  display: grid; place-items: center;
}
.brand-text { font-weight: 700; font-size: 17px; letter-spacing: .3px; }
.nav-section {
  font-size: 11px; text-transform: uppercase; letter-spacing: 1.4px;
  color: #7f93b0; padding: 16px 18px 6px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  background: none; border: none; color: #dfe7f2; text-align: left;
  padding: 10px 18px; font-size: 14px; cursor: pointer; transition: background .15s;
}
.nav-item:hover { background: var(--sidebar-soft); }
.nav-item.active { background: var(--accent); color: #fff; }
.nav-ico { width: 20px; text-align: center; }
.sidebar-footer { margin-top: auto; padding: 14px 18px; border-top: 1px solid #22375a; }
.engine-status { font-size: 13px; font-weight: 600; }
.engine-status.ok { color: #6ee7a0; }
.engine-status.bad { color: #fca5a5; }
.engine-sub { font-size: 12px; color: #7f93b0; margin-top: 3px; }

/* Main */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border-bottom: 1px solid var(--border);
  padding: 12px 20px; position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: 18px; margin: 0; flex: 1; }
.hamburger { display: none; background: none; border: 1px solid var(--border);
  border-radius: 6px; font-size: 16px; padding: 4px 10px; cursor: pointer; }
.privacy-badge {
  font-size: 12px; color: var(--ok); background: #ecfdf3;
  border: 1px solid #c6f6d5; padding: 4px 10px; border-radius: 20px;
}
.content { padding: 20px; max-width: 1100px; width: 100%; }

/* Cards */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px; margin-bottom: 16px;
}
.card h2 { margin: 0 0 6px; font-size: 20px; }
.card h3 { margin: 0 0 10px; font-size: 15px; }
.muted { color: var(--muted); }

.row { display: flex; gap: 10px; margin: 14px 0; flex-wrap: wrap; align-items: center; }
input[type="text"], input[type="number"], select {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; background: #fff; color: var(--text); min-width: 220px;
}
textarea {
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; background: #fff; color: var(--text); width: 100%;
  font-family: inherit; resize: vertical;
}
.batch-block { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.batch-block h3 { margin: 0 0 4px; font-size: 15px; }
button {
  padding: 9px 16px; border: 1px solid var(--border); border-radius: 8px;
  background: #fff; color: var(--text); font-size: 14px; cursor: pointer;
  transition: filter .15s, background .15s;
}
button:hover { filter: brightness(.97); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button:disabled { opacity: .55; cursor: not-allowed; }
button.small { padding: 5px 10px; font-size: 13px; }

.form-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px; margin-bottom: 14px;
}
.form-grid label { font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
.form-grid input, .form-grid select { width: 100%; min-width: 0; }

/* Results */
.results { margin-top: 12px; }
.status-line { color: var(--muted); margin: 8px 0; font-size: 13px; }
.status-line.err { color: var(--err); }
.pill {
  font-size: 12px; border-radius: 20px; padding: 3px 10px; margin-left: 6px;
  background: #eef2f7; color: var(--muted);
}
.pill.ok { background: #ecfdf3; color: var(--ok); }
.pill.warn { background: #fff7ed; color: var(--warn); }

table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--border); }
th { background: #f6f8fb; color: var(--muted); text-transform: uppercase; font-size: 11px; letter-spacing: .6px; }
tr:hover td { background: #fafbfd; }

.item-head {
  font-weight: 700; margin: 16px 0 4px; display: flex; align-items: center; gap: 8px; }
.item-head .muted { font-weight: 400; }

.tree { margin: 10px 0 0 8px; padding-left: 16px; border-left: 2px solid var(--border); }
.tree-node { margin: 4px 0; }
.tree-root { font-weight: 700; }
.facts { columns: 2; column-gap: 24px; font-size: 13px; }
.facts div { margin: 4px 0; break-inside: avoid; }
.facts b { color: var(--text); }

/* Busy overlay */
.busy {
  position: fixed; inset: 0; background: rgba(12,20,34,.55); z-index: 100;
  display: grid; place-items: center; backdrop-filter: blur(2px);
}
.busy.hidden { display: none; }
.busy-box {
  background: #fff; border-radius: 12px; padding: 26px 34px; text-align: center;
  box-shadow: 0 12px 40px rgba(0,0,0,.25);
}
.spinner {
  width: 42px; height: 42px; margin: 0 auto 12px; border-radius: 50%;
  border: 4px solid var(--border); border-top-color: var(--accent);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: #14213d; color: #fff; padding: 12px 22px; border-radius: 10px;
  box-shadow: 0 8px 30px rgba(0,0,0,.3); z-index: 120; max-width: 80vw;
}
.toast.hidden { display: none; }
.toast.err { background: var(--err); }
.toast.ok { background: var(--ok); }
.hidden { display: none !important; }

/* Home */
.home-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(230px,1fr)); gap: 12px; margin-top: 10px; }
.home-card { border: 1px solid var(--border); border-radius: 10px; padding: 14px; cursor: pointer; transition: box-shadow .15s,transform .1s; background:#fff; }
.home-card:hover { box-shadow: 0 6px 20px rgba(15,37,64,.12); transform: translateY(-1px); }
.home-card h4 { margin: 0 0 4px; font-size: 15px; }
.home-card p { margin: 0; font-size: 12.5px; color: var(--muted); }

/* Catalog filters */
.catalog-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; align-items: center; }
.catalog-filters select { min-width: 150px; }

@media (max-width: 900px) {
  .sidebar {
    position: fixed; left: 0; top: 0; height: 100vh; z-index: 60;
    transform: translateX(-100%); transition: transform .2s ease;
  }
  .sidebar.open { transform: translateX(0); box-shadow: 0 0 40px rgba(0,0,0,.35); }
  .hamburger { display: inline-block; }
  .main { padding-left: 0; }
  .facts { columns: 1; }
}

/* ── Auth (login/signup + admin) ─────────────────────────────── */
.auth-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
}
.auth-card {
  width: 100%; max-width: 380px; background: var(--card);
  border: 1px solid var(--border); border-radius: 14px;
  padding: 28px 26px; box-shadow: 0 16px 50px rgba(15,37,64,.12);
}
.auth-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.auth-brand .brand-mark { width: 38px; height: 38px; font-size: 20px; border-radius: 9px; }
.auth-brand .brand-text { font-weight: 700; font-size: 18px; }
.auth-tabs { display: flex; gap: 6px; margin-bottom: 16px; background: #eef2f7; border-radius: 10px; padding: 4px; }
.auth-tab {
  flex: 1; border: none; background: transparent; border-radius: 8px;
  padding: 8px 10px; font-size: 14px; cursor: pointer; color: var(--muted); font-weight: 600;
}
.auth-tab.active { background: var(--card); color: var(--text); box-shadow: 0 1px 4px rgba(15,37,64,.14); }
.auth-form { display: flex; flex-direction: column; gap: 10px; }
.auth-form input[type="email"], .auth-form input[type="password"] {
  padding: 11px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; width: 100%;
}
.auth-msg { font-size: 13px; min-height: 18px; }
.auth-msg.err { color: var(--err); }
.auth-msg.ok { color: var(--ok); }
.auth-panel h2 { margin: 0 0 8px; font-size: 18px; }
.auth-panel p { color: var(--muted); font-size: 14px; margin: 0 0 14px; }
.auth-msg, .auth-form .muted { color: var(--muted); }
.auth-wrap-admin { max-width: 860px; margin: 24px auto; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }

/* User chip in topbar */
.user-chip {
  display: flex; align-items: center; gap: 8px; font-size: 13px;
  color: var(--text); background: #f6f8fb; border: 1px solid var(--border);
  border-radius: 20px; padding: 4px 6px 4px 12px;
}
.user-chip .chip-email { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-chip .admin-link { color: var(--accent); font-weight: 600; cursor: pointer; }
.user-chip button { padding: 4px 10px; font-size: 12px; }