:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #dfe3e8;
  --color-text: #1f2933;
  --color-text-muted: #6b7684;
  --color-primary: #ff4800;
  --color-primary-hover: #ff6700;
  --color-danger: #d92d20;
  --color-danger-bg: #fef3f2;
  --color-warning: #b54708;
  --color-warning-bg: #fffaeb;
  --color-primary-bg: #fff1ec;
  --radius: 8px;
  --font: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
}

button {
  font-family: inherit;
  cursor: pointer;
}

button:disabled {
  cursor: default;
  opacity: 0.6;
}

/* Авторский `display` на конкретных блоках (например `.login-screen`,
   `.loading-screen` ниже) сильнее браузерного `[hidden] { display: none }` —
   без `!important` атрибут `hidden` на таких блоках ничего не скрывает
   (KB_TASK_021, п.3: экран входа оставался под панелью после успешного входа). */
[hidden] {
  display: none !important;
}

.loading-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  background: var(--color-bg);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  max-width: 320px;
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
}

.login-form__logo {
  height: 56px;
  width: auto;
  align-self: center;
  margin-bottom: 8px;
}

.login-form h1 {
  margin: 0 0 20px 0;
  font-size: 1.15rem;
}

.login-form label {
  text-align: left;
  font-weight: 600;
  font-size: 0.85rem;
  margin-top: 8px;
}

.login-form input {
  font-family: inherit;
  font-size: 1rem;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.login-form #login-submit {
  margin-top: 20px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.95rem;
}

.login-form #login-submit:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

.login-form .error-text {
  margin-top: 12px;
  min-height: 1em;
}

.topbar__logout {
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.85rem;
}

.topbar__logout:hover:not(:disabled) {
  background: var(--color-bg);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 20;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.topbar__logo {
  height: 36px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.topbar h1 {
  margin: 0;
  font-size: 1.25rem;
}

.topbar__budget {
  margin-left: auto;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.topbar__budget--warning {
  background: var(--color-warning-bg);
  border-color: var(--color-warning);
  color: var(--color-warning);
  font-weight: 600;
}

.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  flex: 1 1 auto;
  min-height: 0;
}

.sidebar {
  border-right: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 16px 0;
  overflow-y: auto;
}

.sidebar__state {
  padding: 0 16px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.category-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.category-btn {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  border: none;
  background: transparent;
  border-left: 3px solid transparent;
  color: var(--color-text);
  font-size: 0.95rem;
}

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

.category-btn--active {
  border-left-color: var(--color-primary);
  background: var(--color-bg);
  font-weight: 600;
}

.category-btn__name {
  display: block;
}

.category-btn__description {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--color-text-muted);
  white-space: normal;
}

.content {
  padding: 24px;
  overflow-y: auto;
}

.search-bar {
  margin-bottom: 16px;
}

.search-bar__label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.9rem;
}

.search-bar__row {
  display: flex;
  gap: 8px;
  max-width: 640px;
}

.search-bar__row input {
  flex: 1 1 auto;
  min-width: 0;
  font-family: inherit;
  font-size: 1rem;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

#search-submit {
  padding: 8px 18px;
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.95rem;
  flex-shrink: 0;
}

#search-submit:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

#search-clear {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  flex-shrink: 0;
}

#search-clear:hover:not(:disabled) {
  background: var(--color-bg);
}

.search-state {
  color: var(--color-text-muted);
}

.search-state button {
  margin-left: 8px;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.search-result-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.search-result {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 16px;
}

.search-result__meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 8px 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.search-result__category {
  font-weight: 600;
}

.search-result__text {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

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

.content__state button {
  margin-left: 8px;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

#category-title {
  margin-top: 0;
  margin-bottom: 4px;
}

.category-description {
  margin: 0 0 20px 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.record-list {
  list-style: none;
  margin: 0 0 24px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.record {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  padding: 12px 16px;
}

.record--pinned {
  border-left-color: var(--color-primary);
  background: var(--color-primary-bg);
}

.record__pin {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 8px 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.record__pin-checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.record__text {
  margin: 0 0 8px 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.record__actions,
.record__edit-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.record__edit-btn,
.record__delete-btn,
.record__save-btn,
.record__cancel-btn {
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.85rem;
}

.record__delete-btn {
  color: var(--color-danger);
  border-color: #f4b4ae;
}

.record__save-btn {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

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

.record__edit-text {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  resize: vertical;
}

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

.error-text {
  color: var(--color-danger);
  font-size: 0.85rem;
}

.add-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  max-width: 640px;
}

.add-form label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.9rem;
}

.add-form textarea {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  resize: vertical;
}

.add-form__row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
}

.add-form__row button {
  padding: 8px 18px;
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.95rem;
}

.add-form__row button:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

@media (max-width: 768px) {
  .topbar {
    padding: 12px 16px;
  }

  .topbar__logo {
    height: 28px;
  }

  .topbar__budget {
    margin-left: 0;
    width: 100%;
  }

  .layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto minmax(0, 1fr);
  }

  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 8px;
    min-width: 0;
    overflow-y: visible;
  }

  .category-list {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    gap: 4px;
    min-width: 0;
  }

  .category-list li {
    flex: 0 0 auto;
  }

  .category-btn {
    white-space: nowrap;
    border-left: none;
    border-bottom: 3px solid transparent;
    border-radius: var(--radius);
  }

  .category-btn__description {
    display: none;
  }

  .category-btn--active {
    border-left-color: transparent;
    border-bottom-color: var(--color-primary);
  }

  .content {
    padding: 16px;
  }

  .search-bar__row {
    max-width: none;
    flex-wrap: wrap;
  }

  .search-bar__row input {
    flex-basis: 100%;
  }
}