:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #6b7686;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --green: #16a34a;
  --red: #dc2626;
  --amber: #d97706;
  --border: #dfe5ee;
  --radius: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--red); margin-top: 10px; font-size: 14px; }

/* ── вход ─────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%; max-width: 360px;
  box-shadow: 0 8px 30px rgba(28, 36, 48, .08);
}
.login-card h1 { margin: 0 0 4px; font-size: 24px; }
.login-card p { margin: 0 0 20px; font-size: 14px; }
.login-card label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 14px; }
.login-card input {
  display: block; width: 100%; margin-top: 5px;
  padding: 10px 12px; font-size: 15px;
  border: 1px solid var(--border); border-radius: 8px;
  background: #fbfcfe; color: var(--text);
}
.login-card input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.login-card button {
  width: 100%; padding: 11px; margin-top: 6px;
  font-size: 15px; font-weight: 600;
  color: #fff; background: var(--accent);
  border: 0; border-radius: 8px; cursor: pointer;
}
.login-card button:hover { background: var(--accent-dark); }
.login-card button:disabled { opacity: .6; cursor: default; }

/* ── шапка ────────────────────────────────────────── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
}
.topbar-title { font-weight: 700; font-size: 18px; }
button.ghost {
  background: none; border: 1px solid var(--border); border-radius: 8px;
  padding: 7px 14px; font-size: 14px; color: var(--muted); cursor: pointer;
}
button.ghost:hover { color: var(--text); border-color: var(--muted); }

.container { max-width: 1080px; margin: 0 auto; padding: 24px 16px 60px; }

/* ── тестовый блок ────────────────────────────────── */
.test-block {
  background: #fff8e6;
  border: 1px dashed #e5c766;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 20px;
}
.test-block-head {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: #7a6220; margin-bottom: 10px;
}
.badge {
  background: var(--amber); color: #fff;
  font-size: 11px; font-weight: 700; letter-spacing: .5px;
  border-radius: 5px; padding: 2px 8px;
}
.test-parts { display: flex; flex-wrap: wrap; gap: 8px; }
.test-part {
  display: flex; align-items: center; gap: 8px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; font-size: 13px;
}
.test-part .tp-num {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-weight: 600; cursor: pointer; color: var(--accent);
}
.test-part .tp-num:hover { text-decoration: underline; }
.test-part .tp-desc { color: var(--muted); }
.test-part button {
  border: 1px solid var(--border); background: #f7f9fc; border-radius: 6px;
  font-size: 12px; padding: 3px 8px; cursor: pointer; color: var(--text);
}
.test-part button:hover { background: #eef2f8; }
.test-part button.copied { background: var(--green); color: #fff; border-color: var(--green); }

/* ── поиск ────────────────────────────────────────── */
.search-box { margin-bottom: 26px; }
#search-form { display: flex; gap: 10px; }
#part-input {
  flex: 1; padding: 13px 16px; font-size: 17px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--card); color: var(--text);
}
#part-input:focus { outline: 2px solid var(--accent); border-color: transparent; }
#search-btn {
  padding: 0 28px; font-size: 16px; font-weight: 600;
  color: #fff; background: var(--accent);
  border: 0; border-radius: var(--radius); cursor: pointer;
}
#search-btn:hover { background: var(--accent-dark); }
#search-btn:disabled { opacity: .6; cursor: default; }
#search-status { margin-top: 10px; font-size: 14px; }
.spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; vertical-align: -2px; margin-right: 6px;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── результаты ───────────────────────────────────── */
.supplier-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 18px; overflow: hidden;
}
.supplier-head {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  background: #fafbfd;
}
.supplier-name { font-weight: 700; font-size: 16px; }
.supplier-meta { font-size: 13px; color: var(--muted); margin-left: auto; }
.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot.ok { background: var(--green); }
.dot.fail { background: var(--red); }
.supplier-error { padding: 14px 16px; color: var(--red); font-size: 14px; }
.supplier-empty { padding: 14px 16px; color: var(--muted); font-size: 14px; }

.offers-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.offers-table th {
  text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .4px;
  color: var(--muted); font-weight: 600;
  padding: 9px 14px; border-bottom: 1px solid var(--border);
}
.offers-table td { padding: 9px 14px; border-bottom: 1px solid #edf1f7; vertical-align: top; }
.offers-table tr:last-child td { border-bottom: 0; }
.offers-table .price { font-weight: 700; white-space: nowrap; }
.offers-table .qty { white-space: nowrap; }
.offers-table .art { font-family: ui-monospace, Consolas, monospace; white-space: nowrap; }
.offers-table a.offer-link { color: var(--accent); text-decoration: none; }
.offers-table a.offer-link:hover { text-decoration: underline; }
.offers-table a.offer-link b { color: inherit; }
.tag-analog {
  display: inline-block; font-size: 11px; color: var(--amber);
  border: 1px solid var(--amber); border-radius: 5px; padding: 0 6px; margin-left: 6px;
}
.in-stock { color: var(--green); font-weight: 600; }
.on-order { color: var(--muted); }

@media (max-width: 640px) {
  .offers-table th:nth-child(3), .offers-table td:nth-child(3) { display: none; }
  #search-form { flex-direction: column; }
  #search-btn { padding: 12px; }
}