:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-soft: #f1f4f8;
  --border: #d9e0ea;
  --text: #18212f;
  --muted: #667085;
  --label: #344054;
  --button-text: #344054;
  --input: #ffffff;
  --tab: #e9eef6;
  --tab-text: #475467;
  --active-surface: #dbeafe;
  --active-text: #1e3a8a;
  --badge-bg: #eef2ff;
  --badge-text: #3730a3;
  --danger-bg: #fee4e2;
  --danger-hover: #fecdca;
  --success: #157347;
  --accent: #2563eb;
  --accent-strong: #1d4ed8;
  --danger: #b42318;
  --shadow: 0 12px 30px rgba(16, 24, 40, 0.08);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1220;
  --panel: #162235;
  --panel-soft: #22324a;
  --border: #49617f;
  --text: #f8fafc;
  --muted: #c2d0e2;
  --label: #e0ebf8;
  --button-text: #f8fafc;
  --input: #101b2d;
  --tab: #1b2b42;
  --tab-text: #d8e5f5;
  --active-surface: #274a75;
  --active-text: #ffffff;
  --badge-bg: #30466d;
  --badge-text: #f0f6ff;
  --danger: #ffb4b4;
  --danger-bg: #5b2634;
  --danger-hover: #773141;
  --success: #75d6a5;
  --accent: #79b8ff;
  --accent-strong: #b6d8ff;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

:root[data-theme="dark"] .field input:not([type="checkbox"]),
:root[data-theme="dark"] .field select,
:root[data-theme="dark"] .field textarea {
  background: var(--input);
  color: var(--text);
}

:root[data-theme="dark"] .sidebar,
:root[data-theme="dark"] .task-action-dialog {
  background: var(--panel);
  color: var(--text);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

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

button {
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 650;
}

.app-shell {
  min-height: 100vh;
}

.login-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.login-panel h1,
.page-title h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
}

.login-panel p,
.page-title p {
  margin: 8px 0 0;
  color: var(--muted);
}

.form {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.creation-details > summary {
  color: var(--text);
  cursor: pointer;
  font-size: 16px;
  font-weight: 750;
}

.creation-details[open] > summary {
  margin-bottom: 2px;
}

.field {
  display: grid;
  gap: 6px;
}

.field span {
  color: var(--label);
  font-size: 13px;
  font-weight: 650;
}

.field input:not([type="checkbox"]),
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input);
  color: var(--text);
  padding: 10px 11px;
  outline: none;
}

.field textarea {
  min-height: 86px;
  resize: vertical;
}

.field input[type="checkbox"],
.check-field input[type="checkbox"] {
  width: 20px;
  height: 20px;
  min-height: 20px;
  margin: 0;
  padding: 0;
  accent-color: var(--accent);
}

.check-field {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--label);
  font-size: 13px;
  font-weight: 650;
}

.field input:not([type="checkbox"]):focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.button-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.primary {
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
}

.primary:hover {
  background: var(--accent-strong);
}

.secondary {
  background: var(--panel-soft);
  color: var(--button-text);
  padding: 10px 14px;
}

.layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  padding: 20px;
  background: var(--panel);
  min-height: 100vh;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand-user,
.member-identity,
.avatar-preview {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.avatar {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border: 1px solid var(--border);
  border-radius: 50%;
  object-fit: cover;
  background: var(--panel-soft);
}

.avatar-fallback {
  display: inline-grid;
  place-items: center;
  color: var(--button-text);
  font-size: 12px;
  font-weight: 750;
}

.avatar-small {
  width: 26px;
  height: 26px;
  flex-basis: 26px;
  font-size: 10px;
}

.avatar-large {
  width: 78px;
  height: 78px;
  flex-basis: 78px;
}

.avatar-preview {
  min-height: 34px;
  color: var(--muted);
  font-size: 13px;
}

.avatar-profile-preview {
  min-height: 78px;
}

.brand strong {
  font-size: 18px;
}

.user-meta {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.sidebar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.content {
  padding: 24px;
  min-width: 0;
}

.navigation-panel,
.project-team-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.navigation-panel,
.project-team-panel {
  flex: 1;
}

.project-team-panel {
  max-height: 50%;
}

.scrollable-list {
  min-height: 0;
  overflow: auto;
  padding-right: 4px;
  scrollbar-color: var(--border) transparent;
  scrollbar-width: thin;
}

.scrollable-list::-webkit-scrollbar {
  width: 8px;
}

.scrollable-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 999px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.top-actions,
.search-form,
.filters-form {
  align-items: center;
}

.notification-button {
  position: relative;
}

.notification-badge {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--panel-soft);
  border-radius: 50%;
  background: #dc2626;
}

.search-form input,
.filters-form input,
.filters-form select {
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  padding: 8px 10px;
}

.search-result,
.notification-item {
  text-align: left;
}

.markdown code {
  padding: 1px 4px;
  border-radius: 4px;
  background: var(--panel-soft);
}

.markdown a {
  color: var(--accent);
}

.grid {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
}

.admin-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(320px, 420px);
  gap: 18px;
  align-items: start;
}

.workflow-tabs {
  display: inline-flex;
  gap: 4px;
  margin: 0 0 18px;
  padding: 4px;
  background: var(--tab);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.workflow-tab {
  padding: 9px 14px;
  color: var(--tab-text);
  background: transparent;
}

.workflow-tab.active {
  color: var(--active-text);
  background: var(--active-surface);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.08);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}

.panel h2 {
  margin: 0 0 12px;
  font-size: 16px;
}

.list {
  display: grid;
  gap: 8px;
}

.admin-list,
.member-list {
  display: grid;
  gap: 8px;
}

.admin-row,
.member-row {
  display: grid;
  align-items: center;
  gap: 12px;
  padding: 10px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 7px;
}

.admin-row {
  grid-template-columns: minmax(0, 1fr) 150px;
}

.member-row {
  grid-template-columns: minmax(0, 1fr) minmax(95px, max-content);
}

.member-identity > span:last-child {
  overflow-wrap: anywhere;
  white-space: normal;
}

.project-member-row {
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: 5px;
}

.project-member-row .member-identity {
  align-items: flex-start;
}

.project-member-row .member-role {
  padding-left: 35px;
  color: var(--muted);
  font-size: 13px;
}

.admin-row select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input);
  color: var(--text);
  padding: 8px 9px;
}

.project-row {
  display: grid;
  grid-template-columns: 1fr 34px;
  gap: 6px;
  align-items: stretch;
}

.project-row.active .project-item {
  background: var(--active-surface);
  color: var(--active-text);
}

.project-item {
  width: 100%;
  text-align: left;
  background: var(--panel-soft);
  color: var(--text);
  padding: 10px;
}

.danger,
.icon-danger {
  background: var(--danger-bg);
  color: var(--danger);
}

.danger {
  padding: 9px 12px;
  white-space: nowrap;
}

.icon-danger {
  min-width: 34px;
  padding: 0;
  font-size: 20px;
  line-height: 1;
}

.danger:hover,
.icon-danger:hover {
  background: var(--danger-hover);
}

.board {
  display: grid;
  grid-template-columns: repeat(4, minmax(190px, 1fr));
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.column {
  min-width: 190px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  transition:
    border-color 0.15s ease,
    background 0.15s ease;
}

.column.drop-target {
  background: var(--active-surface);
  border-color: var(--accent);
}

.column h3 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 14px;
}

.count {
  color: var(--muted);
  font-size: 12px;
}

.task-card {
  display: grid;
  gap: 8px;
  margin-bottom: 8px;
  padding: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: grab;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    opacity 0.15s ease;
}

.task-card:hover,
.task-card.active {
  border-color: var(--accent);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.12);
}

.task-card.dragging {
  opacity: 0.55;
  cursor: grabbing;
}

.task-title {
  font-weight: 700;
}

.task-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  flex-wrap: wrap;
}

.badge {
  border-radius: 999px;
  background: var(--badge-bg);
  color: var(--badge-text);
  padding: 2px 7px;
  font-size: 12px;
  font-weight: 700;
}

.error {
  color: var(--danger);
  font-size: 13px;
  min-height: 18px;
}

.success {
  min-height: 18px;
  color: var(--success);
  font-size: 13px;
}

.empty {
  color: var(--muted);
  font-size: 13px;
  padding: 10px 0;
}

.hidden {
  display: none;
}

.scrum-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
}

.compact-form {
  margin-top: 12px;
}

.backlog-list,
.sprint-list {
  display: grid;
  gap: 8px;
}

.backlog-list {
  max-height: 300px;
  overflow: auto;
  padding-right: 2px;
}

.backlog-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 9px;
  align-items: start;
  padding: 9px;
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-size: 13px;
}

.backlog-item input {
  margin-top: 2px;
}

.sprint-list {
  display: grid;
  gap: 14px;
  margin: 0 0 12px;
}

.sprint-section {
  display: grid;
  gap: 8px;
}

.sprint-section h3 {
  margin: 0;
  font-size: 14px;
}

.sprint-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
}

.sprint-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px;
  align-items: stretch;
  border-radius: 7px;
}

.sprint-item.completed {
  opacity: 0.86;
}

.sprint-actions {
  display: flex;
  align-items: stretch;
  gap: 6px;
}

.sprint-select {
  display: grid;
  gap: 4px;
  text-align: left;
  color: var(--button-text);
  background: var(--panel-soft);
  border: 1px solid var(--border);
  padding: 10px;
}

.sprint-select span {
  color: var(--muted);
  font-size: 12px;
}

.sprint-item.active .sprint-select {
  border-color: var(--accent);
  background: var(--active-surface);
}

.task-details {
  min-height: 170px;
}

.task-properties {
  margin-top: 8px;
}

.task-action-dialog {
  width: min(520px, calc(100vw - 32px));
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  color: var(--text);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.task-action-dialog::backdrop {
  background: rgba(16, 24, 40, 0.45);
}

.details-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.details-header h2 {
  margin-bottom: 6px;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  border-bottom: 1px solid var(--border);
}

.tab {
  padding: 8px 10px;
  color: var(--muted);
  background: transparent;
  border-radius: 6px 6px 0 0;
}

.tab.active {
  color: var(--accent-strong);
  background: var(--panel-soft);
}

.tab-panel {
  color: var(--text);
  line-height: 1.55;
  padding-top: 14px;
}

.tab-panel p {
  margin: 0;
  white-space: normal;
}

@media (max-width: 960px) {
  .layout,
  .grid,
  .admin-grid,
  .scrum-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .sidebar {
    min-height: auto;
  }
}