:root {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-text: #1c1f26;
  --color-muted: #6b7280;
  --color-border: #e3e5e9;
  --color-accent: #2563eb;
  --color-accent-contrast: #ffffff;
  --color-error: #dc2626;
  --color-error-bg: #fdecec;
  --color-ok: #16a34a;
  --color-ok-bg: #eaf9ee;
  --radius: 10px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.45;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

[x-cloak] {
  display: none !important;
}

/* --- Навигация --- */

.topnav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 20px;
  height: 56px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.topnav__brand {
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

.topnav__center {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.topnav__center::-webkit-scrollbar {
  display: none;
}

.topnav__tab {
  padding: 8px 12px;
  border-radius: var(--radius);
  color: var(--color-muted);
  white-space: nowrap;
  font-size: 14px;
}

.topnav__tab:hover {
  background: var(--color-bg);
}

.topnav__tab--active {
  color: var(--color-accent);
  font-weight: 600;
  background: var(--color-bg);
}

.topnav__right {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.topnav__settings {
  color: var(--color-muted);
  font-size: 14px;
  white-space: nowrap;
}

.topnav__user {
  position: relative;
}

.topnav__user-btn {
  background: none;
  border: none;
  font: inherit;
  color: var(--color-text);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: var(--radius);
}

.topnav__user-btn:hover {
  background: var(--color-bg);
}

.topnav__menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 180px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  padding: 6px;
  display: flex;
  flex-direction: column;
}

.topnav__menu a,
.topnav__menu button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border-radius: 6px;
  border: none;
  background: none;
  font: inherit;
  color: var(--color-text);
  cursor: pointer;
}

.topnav__menu a:hover,
.topnav__menu button:hover {
  background: var(--color-bg);
}

/* --- Layout --- */

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.main--auth {
  max-width: none;
  padding: 0;
}

.page h1 {
  margin: 0 0 20px;
  font-size: 22px;
}

.muted {
  color: var(--color-muted);
}

/* --- Карточки, формы --- */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 {
  margin: 0 0 16px;
  font-size: 17px;
}

.form-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 420px;
}

.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--color-muted);
}

input[type="text"],
input[type="password"],
input[type="search"],
input[type="date"],
input[type="number"],
select {
  font: inherit;
  padding: 9px 11px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
}

input:focus,
select:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.inline-form {
  display: inline-block;
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.connection-result:empty {
  display: none;
}

.connection-result .alert {
  margin: 14px 0 0;
}

.btn {
  font: inherit;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}

.btn:hover {
  background: var(--color-bg);
}

.btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-contrast);
}

.btn--primary:hover {
  filter: brightness(1.05);
}

.btn--small {
  padding: 5px 10px;
  font-size: 13px;
}

.kv {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 16px;
  margin: 16px 0 0;
}

.kv dt {
  color: var(--color-muted);
}

.kv dd {
  margin: 0;
}

/* --- Таблицы --- */

.table-wrap {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th,
.table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.table th {
  color: var(--color-muted);
  font-weight: 600;
}

.table__actions {
  display: flex;
  gap: 6px;
}

/* --- Алерты и тосты --- */

.alert {
  padding: 12px 14px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 14px;
}

.alert--error,
.form-error {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.alert--ok {
  background: var(--color-ok-bg);
  color: var(--color-ok);
}

.form-error {
  padding: 10px 12px;
  border-radius: 8px;
  margin: 0 0 4px;
}

.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--color-text);
  color: var(--color-surface);
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s;
  max-width: 320px;
}

.toast--visible {
  opacity: 1;
  transform: translateY(0);
}

.toast--error {
  background: var(--color-error);
}

/* --- Вход --- */

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 340px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-card h1 {
  margin: 0 0 6px;
  font-size: 19px;
  text-align: center;
}

.auth-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--color-muted);
}

/* --- Заглушка раздела --- */

.stub-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  max-width: 420px;
  margin: 60px auto 0;
}

.stub-card h1 {
  margin: 0 0 8px;
}

.stub-card p {
  color: var(--color-muted);
  margin: 0 0 20px;
}

/* --- Модалка импорта --- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 {
  margin: 0 0 8px;
  font-size: 17px;
}

.modal code {
  background: var(--color-bg);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 12px;
}

.import-preview {
  margin-top: 16px;
}

.import-preview:empty {
  display: none;
}

/* --- Себестоимость --- */

.costs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.costs-header h1 {
  margin: 0;
}

.costs-header__sync {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.stat-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 16px;
  color: var(--color-text);
  display: block;
}

.stat-tile__value {
  font-size: 22px;
  font-weight: 700;
}

.stat-tile__label {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 2px;
}

.stat-tile--warn {
  border-color: var(--color-error);
}

.stat-tile--warn .stat-tile__value {
  color: var(--color-error);
}

.stat-tile--active {
  outline: 2px solid var(--color-accent);
  outline-offset: -1px;
}

.stat-tile--static {
  cursor: default;
}

.costs-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.costs-filters__search {
  flex: 1 1 240px;
  min-width: 200px;
}

.cost-row__photo img,
.cost-row__photo-placeholder {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
  background: var(--color-bg);
}

.cost-row--missing {
  box-shadow: inset 3px 0 0 var(--color-error);
}

.cost-value-btn {
  background: none;
  border: none;
  padding: 4px 0;
  font: inherit;
  color: var(--color-text);
  cursor: pointer;
  border-bottom: 1px dashed var(--color-muted);
}

.cost-value-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--accent {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.cost-edit-form {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}

.cost-edit-form input[type="text"] {
  width: 90px;
}

.cost-edit-form input[type="date"] {
  width: 140px;
}

.chevron-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 15px;
  color: var(--color-muted);
  padding: 6px;
  transition: transform 0.15s;
}

.chevron-btn.is-open {
  transform: rotate(180deg);
}

.cost-history-row td {
  background: var(--color-bg);
}

.cost-history {
  padding: 10px 4px;
  overflow-x: auto;
}

.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.history-table th,
.history-table td {
  text-align: left;
  padding: 6px 10px;
}

.history-row--current {
  font-weight: 600;
}

.badge {
  display: inline-block;
  background: var(--color-ok-bg);
  color: var(--color-ok);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}

@media (max-width: 720px) {
  .topnav {
    padding: 0 12px;
  }

  main {
    padding: 16px 12px 40px;
  }

  .stat-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .cost-table thead {
    display: none;
  }

  .cost-table,
  .cost-table tbody,
  .cost-table tr,
  .cost-table td {
    display: block;
    width: 100%;
  }

  .cost-table tr.cost-row {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    padding: 10px 12px;
    background: var(--color-surface);
  }

  .cost-table tr.cost-history-row {
    margin-top: -10px;
    margin-bottom: 10px;
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
  }

  .cost-table td {
    border: none;
    padding: 4px 0;
    white-space: normal;
  }

  .cost-table td[data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 11px;
    color: var(--color-muted);
    text-transform: uppercase;
  }
}