:root {
  color-scheme: light;
  --bg: #f3f5f8;
  --panel: #ffffff;
  --panel-soft: #eef2f7;
  --text: #18212f;
  --muted: #667085;
  --line: #d9e0ea;
  --accent: #3268d8;
  --accent-strong: #224fa8;
  --accent-soft: #e8efff;
  --warn: #b7791f;
  --danger: #b42335;
  --ok: #14845f;
  --shadow: 0 12px 30px rgba(24, 33, 47, 0.09);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

button {
  border: 0;
  cursor: pointer;
}

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

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

.login h1, .view-title h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.1;
}

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

.field {
  display: grid;
  gap: 6px;
  margin-top: 16px;
}

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

input, textarea, select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 9px 10px;
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 84px;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 111, 91, 0.14);
}

.primary, .ghost, .danger {
  min-height: 38px;
  border-radius: 6px;
  padding: 8px 12px;
  font-weight: 700;
}

.primary {
  background: var(--accent);
  color: #fff;
}

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

.ghost {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}

.danger {
  background: #fff1f1;
  color: var(--danger);
  border: 1px solid #edc9c9;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #fff;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand {
  display: grid;
  gap: 4px;
}

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

.brand span, .user small, .meta {
  color: var(--muted);
  font-size: 13px;
}

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

.nav button {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  min-height: 40px;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  padding: 8px 10px;
  text-align: left;
}

.nav button.active {
  background: var(--panel-soft);
  color: var(--accent-strong);
  font-weight: 750;
}

.user {
  margin-top: auto;
  display: grid;
  gap: 12px;
}

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

.topbar {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

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

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  white-space: nowrap;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--warn);
}

.dot.ok {
  background: var(--ok);
}

.board {
  display: grid;
  grid-template-columns: repeat(4, minmax(220px, 1fr));
  gap: 12px;
  align-items: start;
}

.column {
  min-width: 0;
  background: #edf1f6;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  min-height: 520px;
}

.column h2 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 0 10px;
  font-size: 14px;
  text-transform: uppercase;
  color: var(--muted);
}

.count {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  height: 24px;
  border-radius: 999px;
  background: #fff;
  color: var(--text);
}

.dropzone {
  min-height: 456px;
  border-radius: 8px;
  transition: background 0.16s ease, box-shadow 0.16s ease;
}

.dropzone.drag-over {
  background: rgba(50, 104, 216, 0.08);
  box-shadow: inset 0 0 0 2px rgba(50, 104, 216, 0.28);
}

.empty-state {
  margin: 0;
  padding: 32px 6px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.task {
  display: grid;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
  box-shadow: 0 4px 14px rgba(23, 32, 28, 0.04);
  cursor: grab;
  transition: border-color 0.14s ease, box-shadow 0.14s ease, transform 0.14s ease;
}

.task:hover,
.task:focus-visible {
  border-color: rgba(50, 104, 216, 0.45);
  box-shadow: 0 12px 24px rgba(24, 33, 47, 0.1);
  outline: none;
  transform: translateY(-1px);
}

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

.task-card-head {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
}

.task h3 {
  margin: 0;
  font-size: 15px;
}

.task p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.task-footer {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: space-between;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 750;
}

.priority-urgent .badge,
.priority-high .badge {
  background: #fff3d8;
  color: #8a4f00;
}

.priority-low .badge {
  background: #e9f8f0;
  color: #0d6b4d;
}

.task-controls {
  display: flex;
  gap: 4px;
}

.icon-button {
  width: 30px;
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  max-width: 760px;
}

.panel + .panel {
  margin-top: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.error {
  margin-top: 12px;
  color: var(--danger);
  font-weight: 700;
}

dialog {
  width: min(560px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 22px;
}

dialog::backdrop {
  background: rgba(18, 26, 23, 0.35);
}

.dialog-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

.dialog-meta {
  min-height: 20px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 2;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 12px;
  }

  .nav, .user {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .board {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
  }
}

@media (max-width: 640px) {
  .content {
    padding: 16px;
  }

  .topbar {
    display: grid;
  }

  .actions {
    justify-content: flex-start;
  }

  .board, .grid {
    grid-template-columns: 1fr;
  }

  .column {
    min-height: 260px;
  }
}