:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-soft: #f1f5f3;
  --text: #17201b;
  --muted: #62706a;
  --line: #d9e0dc;
  --accent: #1c6b4a;
  --accent-strong: #104f36;
  --accent-soft: #e4f2ea;
  --info: #315f8c;
  --warning: #8a5a12;
  --radius: 8px;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.app-shell {
  min-height: 100vh;
  padding: 24px;
}

.topbar {
  align-items: center;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin: 0 auto 18px;
  max-width: 1320px;
}

.topbar h1 {
  font-size: 24px;
  line-height: 1.1;
  margin: 0;
}

.topbar p {
  color: var(--muted);
  margin: 6px 0 0;
}

.top-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.user-badge {
  background: var(--accent-soft);
  border: 1px solid #c7e4d4;
  border-radius: 999px;
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 700;
  max-width: 180px;
  overflow: hidden;
  padding: 8px 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(340px, 0.92fr) minmax(420px, 1.3fr);
  margin: 0 auto;
  max-width: 1320px;
}

.panel,
.modal {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel {
  min-height: calc(100vh - 126px);
}

.list-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.toolbar {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(160px, 1fr) 132px;
  padding: 16px;
}

label {
  display: grid;
  gap: 6px;
}

label > span,
.download-link span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

input,
select,
textarea {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  min-height: 40px;
  outline: none;
  padding: 8px 10px;
  width: 100%;
}

textarea {
  font-family: Consolas, "Cascadia Mono", monospace;
  min-height: 240px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

input:disabled {
  background: #f4f6f5;
  color: var(--muted);
}

.list-meta {
  align-items: center;
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
}

.list-meta span {
  color: var(--muted);
  font-size: 13px;
}

.skills-list {
  display: grid;
  gap: 10px;
  overflow-y: auto;
  padding: 0 16px 16px;
}

.skill-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  gap: 8px;
  padding: 14px;
  text-align: left;
  transition: border-color 140ms ease, box-shadow 140ms ease;
  width: 100%;
}

.skill-card:hover,
.skill-card.active {
  border-color: var(--accent);
  box-shadow: 0 6px 18px rgba(28, 107, 74, 0.12);
}

.skill-card h3 {
  font-size: 16px;
  margin: 0;
}

.skill-card p {
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}

.card-meta,
.tag-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pill {
  background: var(--panel-soft);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  padding: 4px 8px;
}

.detail-panel {
  padding: 22px;
}

.empty-state {
  align-items: center;
  color: var(--muted);
  display: grid;
  min-height: calc(100vh - 172px);
  place-content: center;
  text-align: center;
}

.empty-state h2,
.detail-heading h2 {
  color: var(--text);
  margin: 0;
}

.empty-state p {
  margin: 8px 0 0;
}

.hidden {
  display: none !important;
}

.skill-detail {
  display: grid;
  gap: 22px;
}

.detail-heading {
  align-items: start;
  display: flex;
  gap: 18px;
  justify-content: space-between;
}

.detail-heading p {
  color: var(--muted);
  line-height: 1.55;
  margin: 8px 0 0;
}

.eyebrow {
  color: var(--info) !important;
  font-size: 12px;
  font-weight: 800;
  margin: 0 0 6px !important;
}

.metrics {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metrics div {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
}

.metrics span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-bottom: 6px;
}

.metrics strong {
  font-size: 18px;
}

.detail-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.detail-grid h3 {
  font-size: 14px;
  margin: 0 0 10px;
}

.field-list {
  display: grid;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.field-list li {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  line-height: 1.45;
  padding: 10px;
}

.field-list strong {
  color: var(--text);
  display: block;
  margin-bottom: 3px;
}

.primary-btn,
.ghost-btn,
.icon-btn {
  border-radius: 6px;
  min-height: 40px;
  padding: 8px 12px;
}

.primary-btn {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.primary-btn:hover {
  background: var(--accent-strong);
}

.ghost-btn,
.icon-btn {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--text);
}

.ghost-btn:hover,
.icon-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.icon-btn {
  font-size: 24px;
  line-height: 1;
  width: 40px;
}

.download-link {
  display: grid;
  gap: 6px;
}

.modal-backdrop {
  align-items: center;
  background: rgba(23, 32, 27, 0.48);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 20px;
  position: fixed;
  z-index: 20;
}

.modal {
  box-shadow: 0 24px 70px rgba(23, 32, 27, 0.24);
  display: grid;
  gap: 14px;
  max-height: calc(100vh - 40px);
  max-width: 780px;
  overflow-y: auto;
  padding: 18px;
  width: min(780px, 100%);
}

.compact-modal {
  max-width: 430px;
}

.modal-header,
.modal-actions {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.modal-header h2 {
  font-size: 20px;
  margin: 0;
}

.form-row {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.segmented {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 3px;
}

.segmented button {
  background: transparent;
  border-radius: 4px;
  color: var(--muted);
  min-height: 34px;
}

.segmented button.active {
  background: #fff;
  color: var(--text);
  font-weight: 700;
  box-shadow: 0 1px 5px rgba(23, 32, 27, 0.1);
}

.form-message {
  color: var(--warning);
  margin: 0;
  min-height: 20px;
}

.modal-actions > div {
  display: flex;
  gap: 10px;
}

@media (max-width: 920px) {
  .app-shell {
    padding: 14px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    justify-content: stretch;
  }

  .top-actions .primary-btn,
  .top-actions .ghost-btn,
  .user-badge {
    max-width: none;
    width: 100%;
  }

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

  .panel {
    min-height: auto;
  }

  .empty-state {
    min-height: 240px;
  }

  .detail-heading,
  .modal-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .detail-grid,
  .form-row,
  .toolbar,
  .metrics {
    grid-template-columns: 1fr;
  }

  .modal-actions > div {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}