:root {
  --bg: #f4f7fa;
  --ink: #1c1917;
  --accent: #135397;
  --accent-dark: #24445c;
  --line: #d0d7de;
  --card: #ffffff;
  --warn-bg: #fff7ed;
  --warn-ink: #9a3412;
  --warn-line: #fdba74;
  --row-article: #ffffff;
  --row-parent: #e8f1fb;
  --row-sous: #eaf7ef;
  --cell-disabled: #cbd5e1;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, #dbeafe, transparent 42%),
    var(--bg);
}

header, main {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0.75rem 0.6rem;
}

header {
  flex-shrink: 0;
  padding-bottom: 0.35rem;
}

h1 {
  margin: 0;
  font-size: 1.55rem;
}

.title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.2rem;
}

.export-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
  flex-shrink: 0;
  max-width: 16rem;
}

.export-error {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.35;
  color: var(--warn-ink);
  text-align: right;
}

.tagline {
  margin: 0;
  color: #57534e;
  font-size: 0.95rem;
  line-height: 1.45;
}

.load-line {
  margin: 0.35rem 0 0;
  color: #57534e;
  font-size: 0.95rem;
  line-height: 1.45;
}

.link {
  display: inline;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  font: inherit;
}

.link:hover {
  color: var(--accent-dark);
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding-top: 0.5rem;
  padding-bottom: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--card);
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
}

.btn.primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.btn.primary:hover:not(:disabled) {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.status {
  flex-shrink: 0;
  margin: 0 0 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #f8fafc;
  color: #334155;
  font-size: 0.9rem;
  line-height: 1.4;
}

.status[hidden] {
  display: none !important;
}

.status.is-alert {
  border-color: #94a3b8;
  background: #e2e8f0;
  color: #1e293b;
  font-weight: 600;
}

.warnings-banner {
  flex-shrink: 0;
  margin-bottom: 0.65rem;
  border: 1px solid var(--warn-line);
  background: var(--warn-bg);
  border-radius: 8px;
  overflow: hidden;
}

.warnings-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin: 0;
  padding: 0.45rem 0.75rem;
  border: 0;
  background: transparent;
  color: var(--warn-ink);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  text-align: left;
}

.warnings-chevron {
  opacity: 0.7;
  font-size: 0.8rem;
}

.warnings-banner.is-open .warnings-chevron {
  transform: rotate(180deg);
}

.warnings-detail {
  margin: 0;
  padding: 0 0.75rem 0.65rem;
  border: 0;
  background: transparent;
  color: var(--warn-ink);
  font-size: 0.85rem;
  line-height: 1.4;
  overflow: auto;
  white-space: pre-wrap;
  max-height: 8rem;
}

.sheet-section {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

#spreadsheet {
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.15rem;
}

#spreadsheet .jss_container,
#spreadsheet .jss {
  height: 100%;
}

#spreadsheet td[data-x="0"] {
  cursor: pointer;
  text-align: center;
  vertical-align: middle;
  padding: 4px !important;
}

#spreadsheet td[data-x="0"] img {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 4px;
  display: block;
  margin: 0 auto;
  pointer-events: none;
  background: #e7e5e4;
}

#spreadsheet tr.row-type-article > td {
  background-color: var(--row-article);
}

#spreadsheet tr.row-type-parent > td {
  background-color: var(--row-parent);
}

#spreadsheet tr.row-type-sous > td {
  background-color: var(--row-sous);
}

#spreadsheet td.cell-disabled {
  background-color: var(--cell-disabled) !important;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 4px,
    rgba(100, 116, 139, 0.12) 4px,
    rgba(100, 116, 139, 0.12) 8px
  ) !important;
  color: #64748b !important;
  cursor: not-allowed;
}

/* Sous-article parent link: positive cue instead of greying N/A cells */
#spreadsheet td.cell-parent-link {
  font-style: italic;
  color: var(--accent-dark);
  box-shadow: inset 3px 0 0 var(--accent);
}

.studio-dialog {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0;
  max-width: 22rem;
  width: calc(100% - 2rem);
  box-shadow: 0 12px 40px rgba(28, 25, 23, 0.15);
}

.studio-dialog::backdrop {
  background: rgba(28, 25, 23, 0.35);
}

.studio-dialog-form {
  margin: 0;
  padding: 1.1rem 1.2rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.studio-dialog-form h2 {
  margin: 0;
  font-size: 1.1rem;
}

.dialog-hint {
  margin: 0;
  font-size: 0.85rem;
  color: #57534e;
  line-height: 1.4;
}

.dialog-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9rem;
}

.dialog-field select,
.dialog-field input {
  font: inherit;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.35rem;
}