:root {
  color-scheme: light;
  --ink: #17201b;
  --muted: #66706b;
  --line: #d8ded8;
  --paper: #f6f7f2;
  --panel: #ffffff;
  --accent: #126f5a;
  --accent-2: #d59b2d;
  --danger: #b13f34;
  --shadow: 0 18px 50px rgba(24, 35, 29, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(18, 111, 90, 0.08), transparent 42%),
    repeating-linear-gradient(90deg, rgba(23, 32, 27, 0.025) 0 1px, transparent 1px 32px),
    var(--paper);
  color: var(--ink);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 34px 18px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  margin-top: 6px;
  font-size: 28px;
  line-height: 1.15;
}

h2 {
  font-size: 18px;
  margin-bottom: 14px;
}

.layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 22px;
  padding: 24px 34px 34px;
}

.control-panel,
.result-panel,
.login-panel {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.control-panel {
  align-self: start;
  padding: 22px;
}

form label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

label span,
.market-options > span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.market-options {
  border: 0;
  padding: 0;
  margin: 0 0 16px;
}

.market-options > div {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 8px;
}

.market-options label {
  position: relative;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid var(--line);
  background: #fbfcf8;
  color: var(--ink);
  cursor: pointer;
}

.market-options input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.market-options label:has(input:checked) {
  border-color: var(--accent);
  background: rgba(18, 111, 90, 0.08);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.market-options label:has(input:focus-visible) {
  box-shadow: 0 0 0 3px rgba(18, 111, 90, 0.12), inset 0 0 0 1px var(--accent);
}

.market-options label span {
  color: inherit;
  font-size: 15px;
  font-weight: 900;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  background: #fbfcf8;
  color: var(--ink);
  padding: 12px 13px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(18, 111, 90, 0.12);
}

button,
.download {
  border: 0;
  background: var(--accent);
  color: white;
  padding: 12px 15px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.download {
  align-self: start;
  min-width: 108px;
  min-height: 42px;
  padding: 10px 14px;
  white-space: nowrap;
}

.download-box {
  border: 1px solid var(--line);
  background: #fbfcf8;
  padding: 16px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.download-box span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  word-break: break-all;
}

button:disabled {
  opacity: 0.55;
  cursor: wait;
}

.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.runtime {
  margin-top: 20px;
  border-top: 1px solid var(--line);
}

.runtime div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.runtime span {
  color: var(--muted);
  text-align: right;
}

.result-panel {
  min-height: 620px;
  padding: 24px;
  overflow: hidden;
}

.empty-state,
.loading {
  min-height: 360px;
  display: grid;
  place-content: center;
  text-align: center;
  color: var(--muted);
}

.empty-state h2 {
  color: var(--ink);
  font-size: 26px;
}

.summary-band {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 14px;
  align-items: stretch;
  margin-bottom: 18px;
}

.summary-band div,
.narrative,
.levels section,
.confidence-note {
  border: 1px solid var(--line);
  background: #fbfcf8;
  padding: 16px;
}

.summary-band span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 8px;
}

.summary-band strong {
  font-size: 20px;
}

#query-reference {
  white-space: pre-line;
}

.narrative {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
  line-height: 1.65;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  margin-bottom: 22px;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  background: white;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px 10px;
  text-align: left;
  vertical-align: top;
  font-size: 12px;
  line-height: 1.45;
}

th {
  background: #eef3ec;
  color: #26322d;
  font-weight: 900;
}

.levels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.confidence-note {
  margin-top: 18px;
}

.confidence-note p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.error {
  background: #fff2ef;
  color: var(--danger);
  border: 1px solid rgba(177, 63, 52, 0.25);
  padding: 14px 16px;
  margin: 14px 0;
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

.login-shell {
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  padding: 34px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: white;
  font-weight: 900;
  margin-bottom: 18px;
}

.login-panel p {
  color: var(--muted);
  margin: 8px 0 24px;
}

.login-form {
  display: grid;
  gap: 12px;
}

@media (max-width: 920px) {
  .layout,
  .levels,
  .summary-band {
    grid-template-columns: 1fr;
  }

  .topbar {
    padding: 22px;
  }

  .layout {
    padding: 18px;
  }
}