:root {
  --bg: #f5f3ee;
  --bg-2: #ece8dd;
  --panel: rgba(255, 255, 255, 0.92);
  --ink: #182226;
  --muted: #54606a;
  --line: #d2c7b7;
  --accent: #0f7a70;
  --accent-2: #d55a1c;
  --danger: #9f2235;
  --shadow: 0 22px 42px -30px rgba(24, 34, 38, 0.55);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: 'Avenir Next', 'Gill Sans', 'Trebuchet MS', sans-serif;
  background:
    radial-gradient(120% 100% at 0% 0%, #e7f4ef 0%, transparent 45%),
    radial-gradient(120% 100% at 100% 0%, #ffe7d6 0%, transparent 42%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  padding: 22px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  animation: slide-in 0.45s ease;
}

.topbar h1 {
  margin: 0;
  letter-spacing: 0.02em;
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
}

.topbar p {
  margin: 4px 0 0;
  color: var(--muted);
}

.status-chip {
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 10px 14px;
  background: #fff;
  font-weight: 600;
  white-space: nowrap;
}

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

.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 16px;
  animation: slide-in 0.5s ease;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-head h2 {
  margin: 0;
  font-size: 1.05rem;
}

.panel-subtitle {
  color: var(--muted);
  font-size: 0.82rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

label {
  font-size: 0.9rem;
  display: grid;
  gap: 5px;
}

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

input,
select,
textarea {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 9px 10px;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.button {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 12px;
  font-weight: 600;
  cursor: pointer;
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), #2f9c90);
  color: #fff;
}

.button.danger {
  background: #fff4f5;
  color: var(--danger);
  border-color: #e8b2ba;
}

.table-shell {
  overflow: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

th,
td {
  border-bottom: 1px solid #ece4d7;
  padding: 8px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #faf6ee;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

tbody tr:hover {
  background: #f6fbf9;
}

.kanban {
  margin-top: 14px;
}

.kanban h3 {
  margin: 0 0 8px;
}

.kanban-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.kanban-column {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 12px;
  padding: 8px;
}

.kanban-column h4 {
  margin: 0;
  font-size: 0.9rem;
}

.kanban-dropzone {
  min-height: 130px;
  margin-top: 8px;
  border-radius: 10px;
  padding: 4px;
  display: grid;
  gap: 6px;
}

.kanban-dropzone.is-over {
  outline: 2px dashed var(--accent);
  background: #e9f6f3;
}

.task-card {
  border: 1px solid #dfd2be;
  background: linear-gradient(160deg, #fff 0%, #f8efe2 100%);
  border-radius: 10px;
  padding: 7px;
  cursor: grab;
}

.task-card strong {
  display: block;
  font-size: 0.86rem;
}

.task-meta {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.77rem;
}

.doc-filters {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.doc-filters label {
  flex: 1;
}

.docs-grid {
  display: grid;
  grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
  gap: 10px;
}

.doc-tree-shell,
.doc-editor {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 10px;
}

.doc-tree-shell h3,
.doc-editor h3 {
  margin: 0 0 8px;
}

.doc-tree {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.doc-tree ul {
  list-style: none;
  margin: 0;
  padding-left: 14px;
  display: grid;
  gap: 2px;
}

.doc-node {
  width: 100%;
  border: 0;
  text-align: left;
  border-radius: 8px;
  background: transparent;
  padding: 6px;
  cursor: pointer;
}

.doc-node:hover {
  background: #eff7f4;
}

.doc-node.active {
  background: #dcefe9;
  color: #0b5b53;
  font-weight: 700;
}

.doc-hint {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 8px 0 0;
}

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

.app-message {
  position: fixed;
  bottom: 12px;
  right: 12px;
  margin: 0;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.95);
  padding: 10px 12px;
  color: var(--ink);
  box-shadow: var(--shadow);
  min-width: 220px;
}

.app-message.error {
  border-color: #e3adb6;
  color: var(--danger);
}

@media (max-width: 1200px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .kanban-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  body {
    padding: 12px;
  }

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

  .form-grid,
  .docs-grid,
  .doc-filters,
  .editor-actions {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .kanban-grid {
    grid-template-columns: 1fr;
  }
}

@keyframes slide-in {
  from {
    transform: translateY(8px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}