:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #657182;
  --line: #d7dde5;
  --primary: #166a5b;
  --primary-dark: #0f5146;
  --accent: #bc6c25;
  --danger: #b42318;
  --shadow: 0 20px 55px rgba(23, 32, 42, 0.11);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  padding: 0 18px;
}

button:hover {
  background: var(--primary-dark);
}

.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.ghost:hover {
  background: #eef2f5;
}

.danger-button {
  border: 1px solid rgba(180, 35, 24, 0.28);
  background: #fff;
  color: var(--danger);
}

.danger-button:hover {
  background: #fff1f0;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

.login-layout {
  min-height: calc(100vh - 64px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 420px);
  gap: 24px;
  align-items: stretch;
}

.brand-panel,
.auth-card,
.content-section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.brand-panel {
  display: flex;
  min-height: 520px;
  flex-direction: column;
  justify-content: flex-end;
  padding: 44px;
  background:
    linear-gradient(rgba(16, 45, 51, 0.18), rgba(16, 45, 51, 0.76)),
    url("https://images.unsplash.com/photo-1556761175-4b46a572b786?auto=format&fit=crop&w=1600&q=80") center/cover;
  color: #fff;
}

.brand-panel h1 {
  max-width: 680px;
  margin: 0;
  font-size: 56px;
  line-height: 1;
}

.brand-panel p {
  max-width: 620px;
  font-size: 18px;
}

.eyebrow {
  margin: 0 0 10px;
  color: inherit;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.auth-card {
  align-self: center;
  display: grid;
  gap: 18px;
  padding: 28px;
}

.auth-card h2,
.section-heading h2,
.topbar h1 {
  margin: 0;
}

.auth-card p,
.section-heading p {
  margin: 8px 0 0;
  color: var(--muted);
}

label {
  display: grid;
  gap: 8px;
  color: #334155;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
}

input,
select {
  min-height: 46px;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  outline: 3px solid rgba(22, 106, 91, 0.18);
}

.error {
  min-height: 20px;
  margin: 0;
  color: var(--danger);
  font-weight: 700;
}

.hidden {
  display: none !important;
}

.app-layout {
  display: grid;
  gap: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--primary-dark);
  font-weight: 800;
  padding: 8px 12px;
}

.tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--line);
}

.tab {
  border-radius: 6px 6px 0 0;
  background: transparent;
  color: var(--muted);
}

.tab.active {
  background: var(--primary);
  color: #fff;
}

.content-section {
  padding: 26px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.filters-bar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(180px, 240px) minmax(180px, 240px);
  gap: 14px;
  margin-bottom: 20px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fbfcfd;
}

.faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-meta span {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 800;
  padding: 6px 10px;
}

.faq-item h3,
.catalog-card h3 {
  margin: 0;
}

.faq-item p,
.catalog-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.catalog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.empty-state {
  grid-column: 1 / -1;
  margin: 0;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: #fbfcfd;
  color: var(--muted);
  font-weight: 700;
  padding: 18px;
}

.catalog-card {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fbfcfd;
}

.catalog-meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.category {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

.price {
  color: var(--primary-dark);
  font-size: 24px;
  font-weight: 900;
  white-space: nowrap;
}

.sku-line {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.price-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.price-strip.two-cols {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.price-strip.one-col {
  grid-template-columns: 1fr;
}

.price-strip span {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  padding: 9px;
}

.price-strip strong {
  display: block;
  margin-top: 2px;
  color: var(--ink);
}

.specs {
  display: grid;
  gap: 6px;
  margin: 0;
}

.specs div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

.specs dt {
  color: var(--muted);
  font-weight: 700;
}

.specs dd {
  margin: 0;
  text-align: right;
}

.admin-form {
  display: grid;
  gap: 18px;
  max-width: 860px;
}

.admin-page-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.admin-page-tab {
  border-radius: 6px 6px 0 0;
  background: transparent;
  color: var(--muted);
}

.admin-page-tab.active {
  background: var(--primary);
  color: #fff;
}

.admin-page {
  display: grid;
  gap: 18px;
}

.catalog-admin-fields {
  display: grid;
  gap: 18px;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.check-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcfd;
  color: var(--ink);
  padding: 10px;
}

.check-grid input {
  min-height: auto;
  width: auto;
}

.admin-list-block {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.admin-search {
  max-width: 520px;
}

.compact-heading {
  align-items: start;
  margin-bottom: 0;
}

.compact-heading h3 {
  margin: 0;
}

.admin-faq-list {
  display: grid;
  gap: 10px;
  max-height: 620px;
  overflow: auto;
  padding-right: 4px;
}

.admin-faq-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfd;
  padding: 14px;
}

.admin-row-actions {
  display: flex;
  gap: 8px;
}

.admin-faq-item h3 {
  margin: 10px 0 6px;
  font-size: 16px;
}

.admin-faq-item p {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--muted);
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.form-message {
  min-height: 20px;
  margin: 0;
  font-weight: 800;
}

.success-text {
  color: var(--primary-dark);
}

.error-text {
  color: var(--danger);
}

@media (max-width: 820px) {
  .shell {
    width: min(100% - 20px, 1180px);
    padding: 10px 0;
  }

  .login-layout {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .brand-panel {
    min-height: 300px;
    padding: 28px;
  }

  .brand-panel h1 {
    font-size: 38px;
  }

  .topbar,
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .form-grid,
  .check-grid,
  .filters-bar,
  .price-strip,
  .form-actions {
    grid-template-columns: 1fr;
  }

  .form-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-faq-item {
    grid-template-columns: 1fr;
  }

  .admin-row-actions {
    flex-direction: column;
  }
}