/* src/frontend/styles.css */
:root {
  --bg: #fafafa;
  --fg: #111;
  --muted: #666;
  --border: #e5e5e5;
  --border-strong: #d1d1d1;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --card-bg: #fff;
  --diff-pos: #c93838;
  --diff-neg: #1f883d;
  --diff-zero: #9ca3af;
  --error: #991b1b;
  --col-bf: #fdf7ed;
  --col-pe: #f0f7ff;
  color: var(--fg);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  position: sticky;
  z-index: 10;
  justify-content: space-between;
  align-items:  center;
  padding: .625rem 1.5rem;
  top: 0;
}

.app-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.app-body {
  display: grid;
  grid-template-columns: 380px 1fr;
  flex: 1;
  align-items:  start;
  gap: 1rem;
  padding: 1rem 1.5rem;
}

.app-side {
  display: flex;
  position: sticky;
  flex-direction: column;
  gap: 1rem;
  height: calc(100vh - 5rem);
  top: 4rem;
}

.app-side > .form {
  flex-shrink: 0;
}

.app-side > .card {
  display: flex;
  flex-direction: column;
  flex: 1 1 0;
  min-height: 0;
}

.app-side > .card > .card-body {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.app-main {
  min-width: 0;
}

.muted {
  color: var(--muted);
}

.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  font-size: .85em;
}

.error {
  color: var(--error);
  margin: 0;
}

.form {
  background: var(--card-bg);
  border: 1px solid var(--border);
  display: flex;
  border-radius: 8px;
  flex-direction: column;
  gap: .75rem;
  padding: 1rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.form-row-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: .75rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.form-label {
  color: var(--muted);
  font-size: .8rem;
  font-weight: 500;
}

.form-required {
  color: var(--error);
}

.form-input {
  font: inherit;
  border: 1px solid var(--border-strong);
  background: var(--card-bg);
  color: var(--fg);
  outline: none;
  border-radius: 6px;
  padding: .5rem .625rem;
  transition: border-color .15s;

  &:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px #2563eb26;
  }
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
}

.button-primary {
  font: inherit;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  border: 1px solid #0000;
  border-radius: 6px;
  padding: .5rem 1rem;
  transition: background .15s;
  font-weight: 500;

  &:hover:not(:disabled) {
    background: var(--accent-hover);
  }

  &:disabled {
    opacity: .5;
    cursor: not-allowed;
  }
}

.button-link {
  font: inherit;
  color: var(--accent);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  font-size: .85rem;

  &:hover {
    text-decoration: underline;
  }
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  overflow: hidden;
  border-radius: 8px;
}

.card-header {
  display: flex;
  border-bottom: 1px solid var(--border);
  justify-content: space-between;
  align-items:  center;
  padding: .75rem 1rem;
}

.card-title {
  margin: 0;
  font-size: .95rem;
  font-weight: 600;
}

.card-body {
  padding: 1rem;

  &.card-body-flush {
    padding: 0;
  }

  & .padded {
    margin: 0;
    padding: 1rem;
  }
}

.timing {
  color: var(--muted);
  background: #f3f4f6;
  border-radius: 4px;
  padding: 2px 6px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  font-size: .8rem;
}

.timing-group {
  display: flex;
  gap: .5rem;
}

.timing-loading {
  color: #92400e;
  background: #fef3c7;
}

.timing-error {
  color: var(--error);
  background: #fee2e2;
}

.spinner {
  display: inline-block;
  animation: spin .8s linear infinite;
  vertical-align: middle;
  border: 2px solid;
  border-right-color: #0000;
  border-radius: 50%;
  width: 10px;
  height: 10px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.kv {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: .25rem 1rem;
  margin: 0;

  & dt {
    color: var(--muted);
    font-size: .85rem;
  }

  & dd {
    margin: 0;
  }
}

.payload-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.subhead {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin: 0;
  font-size: .85rem;
  font-weight: 600;
}

.attrs-table {
  border-collapse: collapse;
  width: 100%;
  font-size: .85rem;

  & td {
    vertical-align: top;
    padding: .25rem 0;
  }

  & .attrs-key {
    color: var(--muted);
    width: 220px;
    padding-right: 1rem;
  }

  & .attrs-val {
    word-break: break-word;
  }
}

.small {
  font-size: .8rem;
}

.json-viewer {
  color: #d4d4d4;
  overflow-x: auto;
  background: #1e1e1e;
  border-radius: 6px;
  margin: 0;
  padding: 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  font-size: .8rem;
  line-height: 1.5;
}

.supplier-block {
  & + & {
    border-top: 1px solid var(--border);
  }
}

.supplier-name {
  border-bottom: 1px solid var(--border);
  background: #f9fafb;
  margin: 0;
  padding: .625rem 1rem;
  font-size: .9rem;
  font-weight: 600;
}

.supplier-notice {
  color: var(--muted);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: #fef9c3;
  padding: .625rem 1rem;
  font-size: .8rem;
}

.compare-table {
  border-collapse: collapse;
  table-layout: fixed;
  width: 100%;

  & th {
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    padding: .625rem 1rem;
  }

  & td {
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    padding: .625rem 1rem;
  }

  & th {
    color: var(--muted);
    background: #fafafa;
    font-size: .8rem;
    font-weight: 500;
  }

  & tr:last-child td {
    border-bottom: none;
  }

  & .col-qty {
    color: var(--muted);
    width: 100px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  }

  & .col-bf {
    background: var(--col-bf);
  }

  & .col-pe {
    background: var(--col-pe);
  }

  & .col-diff {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
    font-size: .85rem;
  }
}

.cell {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cell-main {
  font-weight: 500;
}

.cell-sub {
  color: var(--muted);
  font-size: .75rem;
}

.cell-sub-separator {
  border-top: 1px dashed var(--border-strong);
  margin-top: .4rem;
  padding-top: .4rem;
}

.diff-cell {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.diff-main {
  font-weight: 600;
}

.diff-sub-separator {
  border-top: 1px dashed var(--border-strong);
  margin-top: .4rem;
  padding-top: .4rem;
}

.diff-sub {
  font-size: .75rem;
}

.diff-label {
  color: var(--muted);
}

.diff-positive {
  color: var(--diff-pos);
}

.diff-negative {
  color: var(--diff-neg);
}

.diff-zero {
  color: var(--diff-zero);
}