:root {
  --bg: #f3efe7;
  --panel: rgba(255, 252, 246, 0.95);
  --panel-border: #d2c8b8;
  --ink: #1d1b19;
  --muted: #6e6559;
  --accent: #0d6b63;
  --accent-strong: #084a45;
  --danger: #8f2d1f;
  --canvas-bg: #ece8de;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.95), rgba(243, 239, 231, 0.92) 45%, rgba(227, 218, 201, 0.9)),
    linear-gradient(135deg, #f3efe7, #ddd3c4);
}

.app-shell {
  display: grid;
  grid-template-columns: 390px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: 20px;
  border-right: 1px solid rgba(29, 27, 25, 0.12);
  overflow-y: auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: 0 14px 35px rgba(70, 51, 20, 0.08);
}

h1,
h2 {
  margin: 0 0 12px;
  font-weight: 650;
}

h1 {
  font-size: 1.55rem;
}

h2 {
  font-size: 1rem;
}

.muted,
.steps,
.status,
.summary table {
  color: var(--muted);
}

.upload {
  display: block;
  margin-bottom: 10px;
}

.upload span {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

input[type="file"] {
  width: 100%;
}

button {
  appearance: none;
  border: 1px solid var(--panel-border);
  background: white;
  color: var(--ink);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.92rem;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease;
}

button:hover {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

button.primary {
  width: 100%;
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

button.danger {
  color: var(--danger);
}

.panel-header,
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.toolbar {
  margin-top: 10px;
  flex-wrap: wrap;
  justify-content: flex-start;
}

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

.field span {
  font-size: 0.88rem;
  color: var(--muted);
}

.field input {
  width: 100%;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.92rem;
}

.calibration-panel {
  margin-top: 12px;
  padding: 12px;
  border: 1px solid rgba(13, 107, 99, 0.22);
  border-radius: 14px;
  background: rgba(13, 107, 99, 0.05);
  display: grid;
  gap: 10px;
}

.calibration-panel[hidden] {
  display: none;
}

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

.list-item {
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.75);
  cursor: pointer;
}

.list-item.active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.list-item strong,
.list-item span {
  display: block;
}

.list-item span {
  color: var(--muted);
  font-size: 0.88rem;
}

.steps {
  margin: 0;
  padding-left: 18px;
  line-height: 1.5;
}

.workspace {
  padding: 18px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.workspace-toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.page-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-picker select {
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.88rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(13, 107, 99, 0.12);
  color: var(--accent-strong);
  font-weight: 600;
}

.badge.secondary {
  background: rgba(29, 27, 25, 0.08);
  color: var(--ink);
}

.table-wrap {
  overflow-x: auto;
}

.project-filters {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 1fr auto;
  gap: 8px;
  margin-bottom: 12px;
}

.project-filters input,
.project-filters select {
  width: 100%;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.88rem;
}

.project-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.project-table th,
.project-table td {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(29, 27, 25, 0.08);
  text-align: left;
  vertical-align: top;
}

.project-table th {
  color: var(--muted);
  font-weight: 600;
}

.project-table td:last-child,
.project-table th:last-child {
  text-align: right;
}

.project-table .active-row {
  background: rgba(13, 107, 99, 0.08);
}

.project-table button {
  padding: 7px 10px;
  font-size: 0.82rem;
}

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

.project-table button.button-danger {
  color: var(--danger);
  border-color: rgba(143, 45, 31, 0.3);
}

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

.canvas-frame {
  flex: 1;
  border-radius: 22px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    var(--canvas-bg);
  background-size: 22px 22px, 22px 22px, auto;
  border: 1px solid rgba(29, 27, 25, 0.12);
}

#planCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.summary table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.summary th,
.summary td {
  text-align: left;
  padding: 6px 0;
  border-bottom: 1px solid rgba(29, 27, 25, 0.08);
}

.summary td:last-child,
.summary th:last-child {
  text-align: right;
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid rgba(29, 27, 25, 0.12);
  }

  .canvas-frame {
    min-height: 70vh;
  }

  .project-filters {
    grid-template-columns: 1fr;
  }
}