:root {
  color-scheme: light;
  --ink: #121417;
  --muted: #65727d;
  --paper: #fffdf8;
  --panel: #f4f1e8;
  --line: #d7d0bf;
  --blue: #164db3;
  --green: #0c7356;
  --amber: #a26000;
  --red: #b03831;
  --violet: #6747b8;
  --code: #18222d;
  --shadow: 0 20px 60px rgb(35 37 42 / 0.13);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgb(18 20 23 / 0.055) 1px, transparent 1px),
    linear-gradient(rgb(18 20 23 / 0.055) 1px, transparent 1px),
    #ece6d8;
  background-size: 30px 30px;
  font-family: Avenir Next, Trebuchet MS, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

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

.shell {
  display: grid;
  grid-template-columns: minmax(260px, 350px) minmax(0, 1fr);
  gap: 22px;
  min-height: 100vh;
  padding: 28px;
}

.rail,
.stage,
.panel,
.card,
.console {
  border: 1px solid var(--line);
  background: rgb(255 253 248 / 0.92);
  box-shadow: var(--shadow);
}

.rail {
  position: sticky;
  top: 28px;
  align-self: start;
  min-height: calc(100vh - 56px);
  padding: 24px;
}

.stage {
  padding: 26px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 11ch;
  margin-bottom: 16px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(40px, 5vw, 72px);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 19px;
  letter-spacing: 0;
}

.lead,
.muted,
.card p,
.panel p,
li {
  color: var(--muted);
  line-height: 1.65;
}

.nav {
  display: grid;
  gap: 10px;
  margin: 26px 0;
}

.nav a,
.nav button,
.link-button,
.primary,
.ghost {
  display: inline-grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 44px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  padding: 10px 12px;
  text-align: left;
  font-weight: 850;
}

.nav a:hover,
.nav a.active,
.nav button:hover,
.link-button:hover,
.ghost:hover {
  border-color: var(--blue);
  background: #eef4ff;
}

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

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

.num,
.icon {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: var(--ink);
  color: white;
  font-size: 12px;
  font-weight: 900;
}

.note {
  border-left: 4px solid var(--amber);
  background: #fff3d6;
  color: #6f4707;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.6;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(250px, 0.75fr);
  gap: 18px;
  margin-bottom: 22px;
}

.statement {
  min-height: 250px;
  padding: 28px;
  color: white;
  background:
    linear-gradient(135deg, rgb(18 20 23 / 0.96), rgb(22 77 179 / 0.83)),
    radial-gradient(circle at 20% 18%, rgb(255 255 255 / 0.22), transparent 26%);
}

.statement .eyebrow,
.statement p {
  color: rgb(255 255 255 / 0.78);
}

.statement h2 {
  max-width: 760px;
  margin-bottom: 16px;
  font-size: clamp(30px, 5vw, 58px);
}

.metrics,
.grid,
.two-col {
  display: grid;
  gap: 14px;
}

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

.metric,
.panel,
.card,
.console {
  padding: 18px;
}

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

.metric strong {
  display: block;
  margin-bottom: 4px;
  font-size: 25px;
}

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

.grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.two-col {
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.82fr);
}

.section {
  margin-top: 24px;
}

.tag,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  margin-bottom: 12px;
  border: 1px solid transparent;
  padding: 3px 9px;
  color: white;
  font-size: 12px;
  font-weight: 900;
}

.tag.blue,
.pill.blue {
  background: var(--blue);
}

.tag.green,
.pill.green {
  background: var(--green);
}

.tag.amber,
.pill.amber {
  background: var(--amber);
}

.tag.red,
.pill.red {
  background: var(--red);
}

.tag.violet,
.pill.violet {
  background: var(--violet);
}

.pill.neutral {
  border-color: var(--line);
  background: var(--paper);
  color: var(--muted);
}

.card {
  min-height: 190px;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease;
}

.card:hover {
  box-shadow: 0 14px 34px rgb(22 77 179 / 0.16);
  transform: translateY(-2px);
}

.card ul {
  margin: 14px 0 0;
  padding-left: 18px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.controls button {
  min-height: 42px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: white;
  cursor: pointer;
  padding: 9px 13px;
  font-weight: 850;
}

.controls button.secondary {
  border-color: var(--line);
  background: white;
  color: var(--ink);
}

.field {
  display: grid;
  gap: 7px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  padding: 11px 12px;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.code,
.console pre {
  overflow: auto;
  border: 1px solid #303b48;
  background: var(--code);
  color: #d8e4ef;
  padding: 14px;
  font-size: 13px;
  line-height: 1.5;
}

.code {
  margin: 14px 0 0;
}

.console {
  align-self: start;
  position: sticky;
  top: 28px;
}

.console pre {
  max-height: 460px;
  margin: 0;
  white-space: pre-wrap;
}

.status-row,
.list {
  display: grid;
  gap: 10px;
}

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

.status {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 12px;
}

.status span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.status strong {
  display: block;
  margin-top: 4px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
}

.table th,
.table td {
  border: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

.table th {
  background: var(--ink);
  color: white;
  font-size: 13px;
}

.table td {
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 1020px) {
  .shell,
  .hero,
  .two-col {
    grid-template-columns: 1fr;
  }

  .rail,
  .console {
    position: static;
    min-height: auto;
  }

  .grid,
  .status-row {
    grid-template-columns: 1fr;
  }
}