:root {
  --bg: #f3f7fc;
  --surface: #ffffff;
  --surface-soft: #f7fbff;
  --surface-strong: #eef5ff;
  --text: #14253f;
  --muted: #5c6f88;
  --line: #d5e2f0;
  --line-strong: #bfd2e7;
  --primary: #1767ff;
  --primary-soft: #e9f1ff;
  --ok: #1f7f50;
  --ok-soft: #eef9f2;
  --warn: #9d6400;
  --warn-soft: #fff7e8;
  --danger: #c84545;
  --danger-soft: #fff1f1;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 16px 36px rgba(15, 23, 42, 0.08);
  --app-shell-max: 1320px;
  --rail-divider-color: #dce6f5;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Noto Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(23, 103, 255, 0.1), transparent 34%),
    radial-gradient(circle at top right, rgba(64, 154, 255, 0.08), transparent 24%),
    var(--bg);
}

a {
  color: #2359b5;
}

h2,
h3,
h4,
p {
  margin: 0;
}

code {
  padding: 0.12rem 0.36rem;
  border: 1px solid #d8e3f0;
  border-radius: 6px;
  background: #f2f6fb;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
}

.layout {
  margin: 1rem auto 2rem;
  display: grid;
  gap: 1rem;
}

.panel,
.guide-card,
.card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.panel,
.guide-card {
  padding: 1rem;
}

.card {
  padding: 1rem;
}

.panel-head {
  display: flex;
  gap: 1rem;
}

.panel-head--split {
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
}

.panel-head--compact {
  margin-bottom: 0.95rem;
}

.section-intro {
  display: grid;
  gap: 0.35rem;
}

.subtle,
.preview-note,
.tool-footer__note {
  color: var(--muted);
  line-height: 1.55;
}

.badge-row,
.import-toolbar__actions,
.validation-banner__actions,
.action-bar__group,
.field-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.45rem 0.78rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.badge--ok {
  border-color: #cfe5d9;
  background: var(--ok-soft);
  color: var(--ok);
}

.status-banner {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
  padding: 0.95rem 1rem;
  display: grid;
  gap: 0.28rem;
}

.status-banner strong {
  font-size: 0.98rem;
}

.status-banner.is-info {
  border-color: #c6d9f3;
  background: #f4f8ff;
}

.status-banner.is-success {
  border-color: #cde7d7;
  background: var(--ok-soft);
}

.status-banner.is-warning {
  border-color: #efd7a5;
  background: var(--warn-soft);
}

.status-banner.is-error {
  border-color: #f0c6c6;
  background: var(--danger-soft);
}

.help-panel {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-soft);
}

.help-panel summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  font-weight: 700;
}

.help-panel summary::-webkit-details-marker {
  display: none;
}

.help-body {
  display: grid;
  gap: 0.95rem;
  padding: 0 1rem 1rem;
}

.help-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.help-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fcfdff;
  padding: 0.9rem;
  display: grid;
  gap: 0.35rem;
}

.workspace-panel {
  display: grid;
  gap: 1rem;
}

.import-toolbar {
  display: grid;
  gap: 0.65rem;
}

.btn {
  min-height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 0.72rem 0.95rem;
  background: #ffffff;
  color: #173758;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, transform 120ms ease;
}

.btn:hover:not(:disabled),
.btn:focus-visible:not(:disabled) {
  background: var(--surface-soft);
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.56;
  cursor: not-allowed;
}

.btn-primary {
  border-color: var(--primary);
  background: linear-gradient(180deg, #4d8aff, var(--primary));
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(23, 103, 255, 0.18);
}

.btn-primary:hover:not(:disabled),
.btn-primary:focus-visible:not(:disabled) {
  background: linear-gradient(180deg, #4d8aff, #0f5fe0);
}

.btn-small {
  min-height: 38px;
  padding: 0.56rem 0.75rem;
  font-size: 0.9rem;
}

.dropzone {
  min-height: 170px;
  border: 1.5px dashed #c3d3e7;
  border-radius: 20px;
  background: #f9fbff;
  padding: 1.1rem;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 0.45rem;
  cursor: pointer;
}

.dropzone strong {
  font-size: 1.08rem;
  line-height: 1.4;
}

.dropzone small {
  color: var(--muted);
  line-height: 1.55;
  max-width: 760px;
}

.dropzone.is-over {
  border-color: var(--primary);
  background: #eef5ff;
}

.dropzone.is-disabled {
  opacity: 0.68;
  cursor: not-allowed;
}

.summary-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.summary-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-soft);
  padding: 0.95rem;
  display: grid;
  gap: 0.25rem;
}

.summary-card__label {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.summary-card strong {
  font-size: 1.5rem;
  line-height: 1.1;
}

.empty-state {
  border: 1px dashed #c8d7eb;
  border-radius: 20px;
  background: #fbfdff;
  padding: 1.25rem;
  text-align: center;
  display: grid;
  gap: 0.45rem;
}

.empty-state h3 {
  font-size: 1.05rem;
}

.empty-state p {
  color: var(--muted);
  line-height: 1.55;
}

.workspace-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
  align-items: start;
}

.rule-panel {
  display: grid;
  gap: 1rem;
  position: sticky;
  top: 12px;
}

.rule-group {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-soft);
  padding: 0.95rem;
  display: grid;
  gap: 0.85rem;
}

.rule-group h4 {
  font-size: 0.98rem;
}

.field {
  display: grid;
  gap: 0.4rem;
  min-width: 0;
}

.field span {
  color: #203858;
  font-size: 0.9rem;
  font-weight: 700;
}

.field input,
.field select {
  width: 100%;
  min-height: 44px;
  border: 1px solid #bdd0e8;
  border-radius: 12px;
  padding: 0.72rem 0.82rem;
  background: #ffffff;
  color: var(--text);
  font: inherit;
}

.field input:focus-visible,
.field select:focus-visible,
.chip-button:focus-visible,
.dropzone:focus-visible,
.table-wrap:focus-visible {
  outline: 2px solid #cfe1ff;
  outline-offset: 2px;
  border-color: var(--primary);
}

.field-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-grid--tight {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field-grid--checkboxes {
  grid-template-columns: 1fr;
}

.field-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.checkbox-row {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 40px;
  color: #244262;
  font-size: 0.92rem;
  font-weight: 600;
}

.checkbox-row input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.preview-panel {
  display: grid;
  gap: 1rem;
}

.validation-banner {
  border: 1px solid #e7efd9;
  border-radius: 18px;
  background: #fbfff5;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.validation-banner.is-blocked {
  border-color: #f0caca;
  background: var(--danger-soft);
}

.preview-toolbar {
  display: grid;
  gap: 0.85rem;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip-button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.5rem 0.78rem;
  background: var(--surface-soft);
  color: #345278;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.chip-button.is-active {
  border-color: #bcd3ff;
  background: var(--primary-soft);
  color: #1d4ca6;
}

.preview-toolbar__grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: minmax(0, 1.25fr) minmax(240px, 280px) minmax(220px, auto);
  align-items: end;
}

.table-wrap {
  overflow: auto;
  max-height: 620px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #ffffff;
}

table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid #e8eef7;
  padding: 0.78rem 0.8rem;
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f8fbff;
  font-size: 0.88rem;
}

tbody tr.is-blocked {
  background: #fff8f8;
}

tbody tr.is-warning {
  background: #fffdf6;
}

tbody tr.is-excluded {
  background: #f8fafc;
  color: #708099;
}

.table-empty {
  padding: 1.35rem;
  text-align: center;
  color: var(--muted);
}

.name-cell {
  display: inline-flex;
  max-width: 260px;
  word-break: break-word;
}

.name-diff mark {
  padding: 0.08rem 0.22rem;
  border-radius: 5px;
  background: #fff1b8;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0.18rem 0.48rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  color: #3f5776;
  font-size: 0.78rem;
  font-weight: 800;
}

.status-pill.is-blocked {
  border-color: #f0caca;
  background: var(--danger-soft);
  color: var(--danger);
}

.status-pill.is-warning {
  border-color: #efddb1;
  background: var(--warn-soft);
  color: var(--warn);
}

.status-pill.is-renamed {
  border-color: #cfe3ff;
  background: var(--primary-soft);
  color: #1b4daa;
}

.status-pill.is-excluded {
  border-color: #d8e3ef;
  background: #f6f9fc;
  color: #64758c;
}

.reason-cell {
  display: inline-block;
  max-width: 360px;
  color: var(--muted);
  line-height: 1.45;
  word-break: break-word;
}

.action-bar {
  display: grid;
  gap: 0.8rem;
  align-items: start;
}

.action-bar__group {
  justify-content: flex-start;
}

.export-status {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
  padding: 0.85rem 0.95rem;
  display: grid;
  gap: 0.55rem;
}

.export-status__meta {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: baseline;
}

.export-status__meta span {
  color: var(--muted);
}

progress {
  width: 100%;
  height: 10px;
}

.guide-layout {
  margin: 0 auto 2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.guide-card {
  display: grid;
  gap: 0.55rem;
}

.guide-card p {
  color: var(--muted);
  line-height: 1.58;
}

.tool-footer {
  margin-top: 2rem;
  padding-bottom: 1rem;
}

.tool-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin-bottom: 0.9rem;
}

.tool-footer__nav a {
  color: inherit;
  text-decoration: none;
}

.tool-footer__nav a:hover,
.tool-footer__nav a:focus-visible {
  text-decoration: underline;
}

.tool-footer__meta,
.tool-footer__note {
  margin: 0 0 0.7rem;
  color: #4b5d75;
  line-height: 1.6;
}

@media (max-width: 1200px) {
  .summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .rule-panel {
    position: static;
  }

  .preview-toolbar__grid,
  .guide-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .help-grid,
  .field-grid,
  .field-grid--tight,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .validation-banner,
  .panel-head--split,
  .help-panel summary,
  .export-status__meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .field-actions,
  .import-toolbar__actions,
  .validation-banner__actions,
  .action-bar__group {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
  }

  .field-actions .btn,
  .import-toolbar__actions .btn,
  .validation-banner__actions .btn,
  .action-bar__group .btn {
    width: 100%;
  }
}

@media (max-width: 760px) {
  .panel,
  .card,
  .guide-card,
  .help-panel summary,
  .help-body {
    padding-left: 0.9rem;
    padding-right: 0.9rem;
  }

  table {
    min-width: 860px;
  }
}