:root {
  --color-primary: #1677c8;
  --color-primary-dark: #0f4f8a;
  --color-primary-light: #e7f4ff;
  --color-accent: #2bb7d6;
  --color-bg: #f5f9fc;
  --color-surface: #ffffff;
  /* Жирные/заметные рамки. Базовый — для всех мелких элементов,
     strong — для секций и карточек, где нужен явный визуальный отбой. */
  --color-border: #a3b8c9;
  --color-border-strong: #6d8295;
  --color-text: #1f2d3d;
  --color-muted: #66788a;
  --color-danger: #d64545;
  --color-success: #2d8a4d;
  --color-warning: #d98b16;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow: hidden;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: Arial, Helvetica, sans-serif;
}

.app-shell {
  display: flex;
  height: 100vh;
  min-height: 100vh;
  overflow: hidden;
}

.app-sidebar {
  width: 240px;
  height: 100vh;
  flex: 0 0 240px;
  display: flex;
  flex-direction: column;
  background: var(--color-primary-dark);
  color: #ffffff;
  padding: 20px 16px 10px;
}

.app-sidebar__top {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.app-brand {
  font-size: 20px;
  font-weight: 700;
}

.app-sidebar__user {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  line-height: 1.4;
}

.app-sidebar__user strong {
  color: #ffffff;
}

.app-sidebar__user-name {
  color: #ffffff;
  font-weight: 600;
  margin-top: 2px;
}

.app-nav {
  display: grid;
  gap: 4px;
  min-height: 0;
  overflow-y: auto;
}

.app-nav__link {
  display: block;
  padding: 10px 12px;
  border-radius: 6px;
  color: #ffffff;
  text-decoration: none;
}

.app-nav__link--active,
.app-nav__link:hover {
  background: rgba(255, 255, 255, 0.18);
}

.app-nav__section {
  display: grid;
  gap: 4px;
  margin-top: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.app-nav__section-title {
  padding: 0 12px 4px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.app-main {
  display: flex;
  flex: 1;
  min-width: 0;
  height: 100vh;
  flex-direction: column;
  overflow-y: auto;
}

.app-sidebar__bottom {
  display: grid;
  gap: 14px;
  margin-top: auto;
  padding-top: 18px;
  padding-bottom: 6px;
}

.notification-bell {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-primary-dark);
  font-weight: 700;
  text-decoration: none;
}

.notification-bell__count {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 20px;
  border-radius: 999px;
  background: var(--color-muted);
  color: #ffffff;
  font-size: 11px;
  line-height: 20px;
  text-align: center;
}

.notification-bell__count--active {
  background: #d64545;
}

.logout-form {
  display: block;
}

.logout-form button {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  cursor: pointer;
  padding: 9px 12px;
  text-align: left;
}

.logout-form button:hover {
  background: rgba(255, 255, 255, 0.18);
}

.app-copyright {
  color: rgba(255, 255, 255, 0.65);
  font-size: 10px;
  text-align: center;
  white-space: nowrap;
}

.app-copyright__link {
  color: inherit;
  text-decoration: none;
}

.app-copyright__link:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* «Невидимый» копирайт автора — сливается с фоном sidebar'а, виден
   только при выделении мышкой. Сидит прижатым к низу экрана. */
.app-copyright__hidden {
  color: var(--color-primary-dark);
  user-select: text;
  text-align: center;
  font-size: 10px;
  margin-top: 6px;
  padding-bottom: 10px;
}

.app-content {
  flex: 1;
  padding: 28px;
}

.flash-stack {
  display: grid;
  gap: 10px;
  max-width: 920px;
  margin-bottom: 16px;
}

.flash {
  border-radius: 6px;
  padding: 10px 12px;
  background: var(--color-primary-light);
}

.flash--success {
  background: #edf8f1;
}

.flash--error {
  background: #fff4f4;
}

.flash--warning {
  background: #fff8ea;
}

.page-panel {
  max-width: 920px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  padding: 24px;
}

.page-panel--narrow {
  max-width: 520px;
}

.page-panel--wide {
  max-width: 1180px;
}

.page-panel__header {
  margin-bottom: 20px;
}

.page-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-panel__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--color-muted);
}

.page-panel h1 {
  margin: 0 0 12px;
  font-size: 26px;
}

.page-panel p {
  margin: 0 0 20px;
  color: var(--color-muted);
  line-height: 1.5;
}

.meta-list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.meta-list dt {
  font-size: 11px;
  color: var(--color-muted);
  font-weight: 500;
}

.meta-list dd {
  margin: 0;
  font-size: 14px;
}

.meta-list div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
}

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

.meta-list dd {
  margin: 0;
}

.debug-details {
  overflow: auto;
  padding: 12px;
  border-radius: 6px;
  background: #f1f5f9;
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0 0 20px;
  list-style: none;
}

.check-list li {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.check-list__item--ok {
  background: #edf8f1;
}

.check-list__item--fail {
  background: #fff4f4;
}

.notice {
  padding: 12px;
  border-left: 4px solid var(--color-accent);
  background: var(--color-primary-light);
}

.message {
  margin-bottom: 20px;
  padding: 12px;
  border-radius: 6px;
}

.message p {
  margin: 0;
}

.message p + p {
  margin-top: 8px;
}

.message--success {
  background: #edf8f1;
}

.message--error {
  background: #fff4f4;
}

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

.form--wide {
  max-width: none;
}

.form h2 {
  margin: 0;
  font-size: 20px;
}

.form label {
  display: grid;
  gap: 6px;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
}

.form button {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  background: var(--color-primary);
  color: #ffffff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.form button:disabled,
.form input:disabled,
.form select:disabled,
.form textarea:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.form-section {
  display: grid;
  gap: 10px;
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 14px;
}

.form-section legend {
  padding: 0 6px;
  font-weight: 700;
  font-size: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 14px;
}

.form-grid__full {
  grid-column: 1 / -1;
}

.form-hint {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.form-actions--compact {
  margin-top: -4px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 0;
  border-radius: 6px;
  background: var(--color-primary);
  color: #ffffff;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  padding: 8px 12px;
}

.button--ghost {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.button--warning {
  background: #d98b16;
}

.button--danger {
  background: #d64545;
}

.button--success {
  background: #2d8a4d;
}

.confirm-modal[hidden] {
  display: none;
}

.confirm-modal {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 24px;
}

.confirm-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 79, 138, 0.34);
}

.confirm-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  box-shadow: 0 24px 70px rgba(31, 45, 61, 0.26);
  padding: 22px;
}

.confirm-modal__dialog h2 {
  margin: 0 0 10px;
  color: var(--color-primary-dark);
  font-size: 20px;
}

.confirm-modal__dialog p {
  margin: 0;
  color: var(--color-text);
  line-height: 1.45;
}

.confirm-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}