:root {
  --bg: #edf1f5;
  --panel: #ffffff;
  --panel-alt: #f8fafc;
  --line: #d5dde8;
  --ink: #172130;
  --muted: #586579;
  --accent: #145da0;
  --accent-soft: #d8e8f7;
  --good: #197a56;
  --good-soft: #d9f0e7;
  --warn: #b87416;
  --warn-soft: #f9ead1;
  --risk: #a8473d;
  --risk-soft: #f7dfdb;
  --shadow: 0 12px 28px rgba(18, 37, 63, 0.08);
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Aptos", "Segoe UI Variable Text", "Segoe UI", sans-serif;
  background:
    linear-gradient(180deg, rgba(20, 93, 160, 0.04), transparent 22%),
    linear-gradient(180deg, #eef3f8 0%, #e9eef3 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(88, 101, 121, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88, 101, 121, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: -1;
  opacity: 0.45;
}

h1,
h2,
h3,
p,
dl,
dt,
dd {
  margin: 0;
}

button,
select {
  font: inherit;
}

.app-shell {
  width: min(1500px, calc(100% - 24px));
  margin: 0 auto;
  padding: 18px 0 26px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.report-header,
.control-layout,
.summary-grid,
.two-column-grid,
.panel {
  margin-bottom: 16px;
}

.report-header {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.85fr);
  gap: 20px;
  padding: 22px 24px;
}

.report-header__copy {
  display: grid;
  gap: 12px;
}

.overline {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-size: 0.76rem;
  font-weight: 700;
  font-family: "IBM Plex Mono", "Cascadia Mono", Consolas, monospace;
}

.header-copy,
.panel-copy,
.snapshot-copy,
.stack-item__copy,
.selection-panel .panel-copy {
  color: var(--muted);
  line-height: 1.55;
}

h1 {
  font-size: clamp(2rem, 3.8vw, 3.4rem);
  line-height: 1.02;
  max-width: 14ch;
}

h2 {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  line-height: 1.1;
}

h3 {
  font-size: 1rem;
  line-height: 1.3;
}

.report-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-content: start;
}

.report-meta div,
.summary-card,
.tier-card,
.snapshot-card,
.action-card,
.stack-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-alt);
}

.report-meta div {
  padding: 14px 15px;
}

.report-meta dt {
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 6px;
}

.report-meta dd {
  font-weight: 700;
}

.control-layout,
.two-column-grid {
  display: grid;
  gap: 16px;
}

.control-layout {
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.8fr);
}

.two-column-grid {
  grid-template-columns: minmax(0, 1.2fr) minmax(340px, 0.9fr);
}

.panel {
  padding: 18px 20px;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.panel-heading .panel-copy {
  max-width: 38ch;
  font-size: 0.93rem;
}

.segmented-control {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.segment-button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 14px;
  background: #f4f7fb;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.segment-button.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.segment-button__label {
  display: block;
  font-weight: 700;
}

.segment-button__copy {
  display: block;
  margin-top: 2px;
  font-size: 0.78rem;
  opacity: 0.84;
}

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

.field {
  display: grid;
  gap: 8px;
}

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

.field select {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--ink);
  padding: 0 12px;
}

.selection-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.selection-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.selection-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.selection-list span {
  color: var(--muted);
}

.tag-list,
.snapshot-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag,
.table-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.summary-card {
  padding: 16px;
  display: grid;
  gap: 8px;
}

.summary-card__label {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: "IBM Plex Mono", "Cascadia Mono", Consolas, monospace;
}

.summary-card__value {
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  line-height: 1;
}

.summary-card__copy {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.summary-card__status {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
}

.status--good {
  background: var(--good-soft);
  color: var(--good);
}

.status--warn {
  background: var(--warn-soft);
  color: var(--warn);
}

.status--risk {
  background: var(--risk-soft);
  color: var(--risk);
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.tier-card {
  padding: 16px;
  cursor: pointer;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

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

.tier-card.is-active {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.tier-card__label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.tier-card__name {
  font-weight: 700;
}

.tier-card__cadence {
  color: var(--muted);
  font-size: 0.82rem;
}

.tier-card__question,
.tier-card__action {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.45;
}

.tier-card__question {
  margin-bottom: 10px;
}

.tier-card__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.tier-card__metric {
  padding: 10px 11px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid var(--line);
}

.tier-card__metric span {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
}

.tier-card__metric strong {
  display: block;
  margin-top: 4px;
  font-size: 1.05rem;
}

.table-wrap {
  overflow: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.table th,
.table td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.table th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: "IBM Plex Mono", "Cascadia Mono", Consolas, monospace;
}

.table tbody tr {
  cursor: pointer;
  transition: background-color 160ms ease;
}

.table tbody tr:hover {
  background: #f5f9fd;
}

.table tbody tr.is-active {
  background: #edf5fd;
}

.table td strong {
  display: block;
}

.table td small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.table--dense {
  min-width: 980px;
}

.snapshot-stack,
.stack-list {
  display: grid;
  gap: 12px;
}

.snapshot-card {
  padding: 15px;
}

.snapshot-card__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.snapshot-card__meta div {
  padding: 10px;
  border-radius: var(--radius-sm);
  background: #ffffff;
  border: 1px solid var(--line);
}

.snapshot-card__meta span {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
}

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

.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.quality-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel-alt);
}

.quality-card__label {
  color: var(--muted);
  font-size: 0.78rem;
}

.quality-card__value {
  display: block;
  margin-top: 8px;
  font-size: 1.6rem;
  line-height: 1;
}

.quality-card__copy {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.84rem;
}

.quality-bars {
  display: grid;
  gap: 10px;
}

.quality-bar {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) 48px;
  gap: 10px;
  align-items: center;
}

.quality-bar__label,
.quality-bar__value {
  font-size: 0.85rem;
}

.quality-bar__track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: #dfe7f1;
  overflow: hidden;
}

.quality-bar__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--value);
  border-radius: inherit;
  background: linear-gradient(90deg, #69a8db 0%, #145da0 100%);
}

.action-card {
  margin-top: 16px;
  padding: 16px;
}

.stack-item {
  padding: 14px;
}

.stack-item__header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 8px;
}

.stack-item__title {
  font-weight: 700;
}

.stack-item__meta {
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-panel {
  padding: 14px 18px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

@media (max-width: 1200px) {
  .summary-grid,
  .quality-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 980px) {
  .report-header,
  .control-layout,
  .two-column-grid {
    grid-template-columns: 1fr;
  }

  .panel-heading {
    flex-direction: column;
  }

  .panel-heading .panel-copy {
    max-width: none;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 16px, 1500px);
    padding-top: 12px;
  }

  .panel,
  .report-header {
    padding: 16px;
  }

  .report-meta,
  .filter-grid,
  .summary-grid,
  .quality-grid,
  .snapshot-card__meta {
    grid-template-columns: 1fr;
  }

  .quality-bar {
    grid-template-columns: 1fr;
  }
}