:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #f9faf7;
  --ink: #121417;
  --muted: #5f6975;
  --line: #dfe5ec;
  --line-strong: #c9d4df;
  --blue: #1f5eff;
  --blue-soft: #eaf1ff;
  --green: #0f8f67;
  --green-soft: #e7f7f0;
  --orange: #c85300;
  --orange-soft: #fff4e8;
  --red: #b42318;
  --red-soft: #fff1ef;
  --shadow: 0 18px 50px rgba(36, 45, 58, 0.08);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

.shell-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(240px, 1fr) auto auto;
  left: 0;
  padding: 14px clamp(18px, 5vw, 64px);
  position: sticky;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  display: flex;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  align-items: center;
  background: #111827;
  border-radius: 8px;
  color: #fff;
  display: inline-flex;
  font-weight: 900;
  height: 42px;
  justify-content: center;
  width: 42px;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.top-nav {
  display: flex;
  gap: 6px;
}

.top-nav a {
  border-radius: 6px;
  color: var(--muted);
  padding: 10px 12px;
}

.top-nav a:hover {
  background: var(--blue-soft);
  color: var(--blue);
}

.header-actions {
  display: flex;
  gap: 10px;
}

main {
  display: grid;
  gap: 20px;
  margin: 0 auto;
  max-width: 1480px;
  padding: 34px clamp(18px, 5vw, 64px) 56px;
}

.hero {
  align-items: center;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.55fr);
  min-height: 320px;
}

.eyebrow,
.section-kicker {
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 10px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(42px, 6vw, 76px);
  letter-spacing: 0;
  line-height: 0.95;
  margin-bottom: 22px;
  max-width: 920px;
}

h2 {
  font-size: 20px;
  letter-spacing: 0;
  margin-bottom: 0;
}

h3 {
  font-size: 16px;
}

.lead {
  color: #465264;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.65;
  max-width: 860px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-meta span,
.badge {
  background: var(--blue-soft);
  border: 1px solid #bed0ff;
  border-radius: 999px;
  color: #1747c8;
  font-size: 13px;
  font-weight: 800;
  padding: 7px 10px;
}

.badge.alert {
  background: var(--orange-soft);
  border-color: #ffd6ad;
  color: var(--orange);
}

.run-card,
.panel,
.metric {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.run-card {
  padding: 26px;
}

.status-line {
  align-items: center;
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.pulse {
  background: var(--green);
  border-radius: 999px;
  box-shadow: 0 0 0 7px var(--green-soft);
  height: 10px;
  width: 10px;
}

#status-message {
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 22px;
}

#status-message[data-tone="ok"] {
  color: var(--green);
}

.run-card-grid {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px 16px;
  grid-template-columns: 1fr auto;
  padding-top: 18px;
}

.run-card-grid span {
  color: var(--muted);
}

.metrics-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.metric {
  min-height: 126px;
  padding: 18px;
}

.metric span {
  color: var(--muted);
  display: block;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}

.metric strong {
  display: block;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1;
}

.metric small {
  color: #7c8794;
  display: block;
  margin-top: 12px;
}

.workflow {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  padding: 12px;
}

.workflow span {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 800;
  padding: 12px 10px;
  text-align: center;
}

.workspace-grid,
.split-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}

.panel {
  min-width: 0;
  padding: 20px;
}

.panel-heading {
  align-items: center;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  margin-bottom: 18px;
}

.button {
  align-items: center;
  border-radius: 7px;
  cursor: pointer;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 40px;
  padding: 0 15px;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
  white-space: nowrap;
}

.button:hover {
  transform: translateY(-1px);
}

.button:disabled {
  cursor: wait;
  opacity: 0.65;
  transform: none;
}

.button-primary {
  background: #111827;
  border: 1px solid #111827;
  color: #fff;
}

.button-primary:hover {
  background: var(--blue);
  border-color: var(--blue);
}

.button-secondary,
.button-ghost {
  background: #fff;
  border: 1px solid var(--line-strong);
  color: var(--ink);
}

.button-secondary:hover,
.button-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.button-ghost {
  min-height: 34px;
  padding: 0 11px;
}

.field {
  color: var(--muted);
  display: grid;
  font-size: 13px;
  font-weight: 800;
  gap: 7px;
}

.editor-form {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 14px;
}

.editor-form.compact {
  grid-template-columns: 1fr;
}

.field-full {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: var(--ink);
  min-height: 42px;
  padding: 10px 11px;
  width: 100%;
}

textarea {
  line-height: 1.6;
  resize: vertical;
}

button:focus-visible,
input:focus,
select:focus,
textarea:focus,
a:focus-visible {
  outline: 3px solid rgba(31, 94, 255, 0.22);
  outline-offset: 2px;
}

.list-stack {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.list-item {
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  padding: 13px;
}

.list-item.is-selected {
  background: var(--blue-soft);
  border-color: #a9c1ff;
}

.list-item p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  margin: 4px 0 0;
}

pre {
  background: #10151f;
  border-radius: 8px;
  color: #ecf2ff;
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
  min-height: 236px;
  overflow: auto;
  padding: 18px;
  white-space: pre-wrap;
}

.failure-stack {
  display: grid;
  gap: 12px;
}

.empty-state {
  background: var(--surface-soft);
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
  padding: 18px;
}

.failure-card {
  background: var(--red-soft);
  border: 1px solid #ffc6bd;
  border-radius: 8px;
  padding: 16px;
}

.failure-card-head {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.failure-card-head strong,
.failure-card-head span {
  background: #fff;
  border: 1px solid #ffc6bd;
  border-radius: 999px;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  padding: 5px 8px;
}

.failure-card h3 {
  margin-bottom: 12px;
}

.failure-card p {
  color: #4d1d18;
  line-height: 1.65;
  margin-bottom: 10px;
}

.failure-card b {
  display: block;
  margin-bottom: 3px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  min-width: 1060px;
  width: 100%;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 13px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

td {
  color: #263241;
  line-height: 1.55;
}

td strong,
td small {
  display: block;
}

td small {
  color: var(--muted);
  margin-top: 5px;
}

td input {
  min-width: 96px;
}

td .review-note {
  min-width: 190px;
}

.status-pill {
  border-radius: 999px;
  display: inline-flex;
  font-size: 12px;
  font-weight: 900;
  padding: 5px 9px;
}

.status-pill.pass {
  background: var(--green-soft);
  color: var(--green);
}

.status-pill.fail {
  background: var(--red-soft);
  color: var(--red);
}

.comparison-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 15px;
}

.comparison-card + .comparison-card {
  margin-top: 12px;
}

.comparison-title {
  align-items: start;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-bottom: 12px;
}

.comparison-title h3 {
  margin-bottom: 0;
}

.comparison-title span {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.comparison-grid {
  display: grid;
  gap: 9px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.comparison-grid div {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 10px;
}

.comparison-grid span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-bottom: 5px;
}

.comparison-grid strong {
  font-size: 16px;
}

.demo-steps {
  color: #394657;
  line-height: 1.85;
  margin: 0;
  padding-left: 22px;
}

.demo-steps li + li {
  margin-top: 10px;
}

@media (max-width: 1120px) {
  .shell-header,
  .hero,
  .workspace-grid,
  .split-grid {
    grid-template-columns: 1fr;
  }

  .top-nav {
    order: 3;
  }

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

@media (max-width: 720px) {
  main {
    padding-inline: 14px;
  }

  .shell-header {
    padding-inline: 14px;
  }

  .header-actions,
  .top-nav,
  .editor-form,
  .metrics-grid,
  .workflow,
  .comparison-grid {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .header-actions,
  .top-nav {
    display: grid;
  }

  .button,
  .top-nav a {
    width: 100%;
  }

  .list-item,
  .panel-heading,
  .comparison-title {
    align-items: stretch;
    display: grid;
  }

  h1 {
    font-size: 42px;
  }
}