:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --border: #dcdfe4;
  --text: #1c2024;
  --muted: #6b7280;
  --accent: #1d4ed8;
  --accent-light: #eef2ff;
  --danger: #dc2626;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header.app-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
  position: sticky;
  top: 0;
  z-index: 10;
}

header.app-header h1 {
  margin: 0 0 2px;
  font-size: 1.25rem;
}

header.app-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}

.card h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 0.95rem;
  color: var(--accent);
}

.field {
  margin-bottom: 12px;
}

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.field input[type="text"],
.field input[type="date"],
.field input[type="number"],
.field select,
.field textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: #fff;
}

.field textarea { min-height: 60px; resize: vertical; }

.row {
  display: flex;
  gap: 10px;
}

.row > .field { flex: 1; min-width: 0; }

.qty-row {
  display: grid;
  grid-template-columns: 1fr 90px 90px;
  gap: 8px;
  align-items: end;
}

.select-status {
  font-size: 0.8rem;
  margin-left: 8px;
  color: var(--muted);
}
.select-status.error { color: var(--danger); }
.select-status.ok { color: #15803d; }

button {
  font-family: inherit;
  cursor: pointer;
}

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.95rem;
}

.btn.secondary {
  background: var(--accent-light);
  color: var(--accent);
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  font-size: 0.85rem;
}

.btn.danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  padding: 6px 10px;
  font-size: 0.85rem;
}

.etage-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
}

.etage-header {
  background: var(--accent-light);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.etage-header h3 { margin: 0; color: var(--text); font-size: 1rem; }

.etage-body { padding: 16px; }

.metier-section {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: 14px;
}
.metier-section:first-child { border-top: none; margin-top: 0; padding-top: 0; }

.toiture-subtype-picker {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.toiture-subtype-picker button.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

table.particularites {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-top: 8px;
}
table.particularites th, table.particularites td {
  border: 1px solid var(--border);
  padding: 6px;
  text-align: left;
}
table.particularites input {
  width: 100%;
  border: none;
  font-size: 0.85rem;
  padding: 2px;
}

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.file-note {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 6px;
}

.toolbar-add {
  display: flex;
  justify-content: center;
  margin: 8px 0 20px;
}

footer.submit-bar {
  position: sticky;
  bottom: 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  display: flex;
  justify-content: flex-end;
}

.hidden { display: none !important; }