:root {
  --bg: #f6f1e8;
  --bg-soft: rgba(255, 255, 255, 0.74);
  --surface: rgba(255, 253, 248, 0.84);
  --surface-strong: #fffdfa;
  --line: rgba(20, 24, 33, 0.08);
  --ink: #17212f;
  --ink-soft: #4d5a6d;
  --emerald: #0f766e;
  --coral: #ef6c3b;
  --navy: #1f3a5f;
  --gold: #d19a3e;
  --success: #15803d;
  --warning: #c26d18;
  --danger: #b42318;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --shadow: 0 24px 80px rgba(24, 34, 48, 0.12);
  --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  --font-sans: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.18), transparent 24%),
    radial-gradient(circle at 82% 14%, rgba(239, 108, 59, 0.16), transparent 22%),
    radial-gradient(circle at 70% 78%, rgba(209, 154, 62, 0.18), transparent 18%),
    linear-gradient(180deg, #f8f4ed 0%, #fffdf8 48%, #eef4f1 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image:
    linear-gradient(rgba(23, 33, 47, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 33, 47, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 85%);
}

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

img {
  max-width: 100%;
}

code,
pre {
  font-family: var(--font-mono);
}

.app-loading {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.loading-card {
  width: min(680px, 100%);
  padding: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: center;
}

.loading-card.is-error {
  border-color: rgba(180, 35, 24, 0.18);
}

.page-shell {
  width: min(1240px, calc(100% - 40px));
  max-width: 100%;
  margin: 0 auto;
  padding: 20px 0 64px;
}

.topbar {
  position: sticky;
  top: 18px;
  z-index: 12;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-bottom: 26px;
  padding: 14px 18px;
  border: 1px solid rgba(23, 33, 47, 0.08);
  border-radius: 999px;
  background: rgba(255, 252, 247, 0.72);
  box-shadow: 0 18px 48px rgba(18, 28, 42, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--emerald), var(--navy));
  color: #fff;
  font-size: 0.84rem;
}

.topbar nav {
  display: inline-flex;
  gap: 18px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.content {
  display: grid;
  gap: 72px;
  min-width: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 420px);
  gap: 28px;
  padding: 28px 0 10px;
  align-items: start;
  min-width: 0;
}

.hero-copy h1,
.section-heading h2,
.panel-header h3,
.method-card h3,
.plot-card h3,
.case-card h3,
.conclusion-card h3 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero-copy h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 7vw, 6.4rem);
}

.hero-lead,
.section-heading p,
.panel-header p,
.footer p,
.method-card p,
.plot-card p,
.case-card p,
.conclusion-card p {
  color: var(--ink-soft);
  line-height: 1.65;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--emerald);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

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

.button.is-primary {
  background: linear-gradient(135deg, var(--emerald), #0a5a54);
  color: #fff;
  box-shadow: 0 16px 36px rgba(15, 118, 110, 0.24);
}

.button.is-secondary {
  border: 1px solid rgba(23, 33, 47, 0.1);
  background: rgba(255, 255, 255, 0.5);
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-tile,
.split-metric,
.architecture-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.48);
}

.stat-tile span,
.split-metric span {
  display: block;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.stat-tile strong,
.hero-metric strong,
.metric-grid strong,
.snapshot-grid strong {
  display: block;
  margin-top: 6px;
  font-size: 1.5rem;
}

.panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-panel {
  display: grid;
  gap: 14px;
  background:
    linear-gradient(160deg, rgba(31, 58, 95, 0.94), rgba(15, 118, 110, 0.9));
  color: #f7fbff;
}

.hero-metric {
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.08);
}

.hero-metric .eyebrow,
.hero-aside p {
  color: rgba(247, 251, 255, 0.8);
}

.hero-aside {
  padding: 8px 6px 0;
}

.section {
  display: grid;
  gap: 26px;
}

.section-heading {
  max-width: 760px;
}

.section-heading h2 {
  font-size: clamp(2.25rem, 4vw, 3.6rem);
}

.filter-grid,
.method-grid,
.plot-grid,
.case-grid,
.conclusion-grid {
  display: grid;
  gap: 18px;
  min-width: 0;
}

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

.method-grid,
.plot-grid,
.conclusion-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.filter-card-head,
.plot-card-head,
.case-head,
.split-head,
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.filter-tag,
.case-meta,
.support-note {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(23, 33, 47, 0.06);
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.muted {
  color: var(--ink-soft);
}

.metric-grid,
.battery-list,
.snapshot-grid,
.split-grid,
.detail-grid,
.grid-two,
.grid-single,
.architecture-list {
  display: grid;
  gap: 18px;
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 22px 0 18px;
}

.metric-grid span,
.snapshot-grid span {
  display: block;
  color: var(--ink-soft);
}

.filter-notes {
  display: grid;
  gap: 10px;
  margin-top: auto;
}

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

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

.grid-two,
.grid-single,
.detail-grid,
.split-grid,
.battery-list,
.snapshot-grid,
.architecture-list {
  min-width: 0;
}

.table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
}

.metric-table {
  width: 100%;
  border-collapse: collapse;
}

.metric-table th,
.metric-table td {
  padding: 14px 12px;
  border-bottom: 1px solid rgba(23, 33, 47, 0.08);
  text-align: left;
}

.metric-table th {
  color: var(--ink-soft);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-table td strong,
.metric-table td span {
  display: block;
}

.metric-table td span {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

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

.split-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.46);
}

.split-head {
  margin-bottom: 14px;
}

.split-metric {
  display: grid;
  gap: 6px;
}

.chart-panel,
.split-panel,
.table-panel {
  height: 100%;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 8px 0 18px;
}

.legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--legend-color);
}

.chart-rows {
  display: grid;
  gap: 18px;
}

.chart-row {
  min-width: 0;
  padding: 16px;
  border: 1px solid rgba(23, 33, 47, 0.07);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.46);
}

.chart-row-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--ink-soft);
}

.chart-row-head strong {
  color: var(--ink);
}

.chart-series-stack {
  display: grid;
  gap: 10px;
}

.series-line {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr) 76px;
  align-items: center;
  gap: 12px;
}

.series-label,
.series-value {
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.series-track {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(23, 33, 47, 0.08);
}

.series-bar {
  height: 100%;
  border-radius: inherit;
  background: var(--bar-color);
}

.battery-list,
.architecture-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.battery-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.44);
}

.battery-item span,
.battery-item p {
  color: var(--ink-soft);
}

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

.snapshot-grid > div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.48);
}

.case-card {
  display: grid;
  gap: 14px;
}

.plot-card {
  min-width: 0;
  display: grid;
  gap: 16px;
}

.plot-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(23, 33, 47, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 700;
}

.plot-frame {
  display: block;
  overflow: hidden;
  border: 1px solid rgba(23, 33, 47, 0.08);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(245, 248, 250, 0.92));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.plot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.case-tags,
.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.case-tags span,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: 0.86rem;
}

.case-tags span {
  background: rgba(23, 33, 47, 0.06);
  color: var(--ink-soft);
}

.status-pill.is-success {
  background: rgba(21, 128, 61, 0.12);
  color: var(--success);
}

.status-pill.is-danger {
  background: rgba(180, 35, 24, 0.12);
  color: var(--danger);
}

.status-pill.is-warning {
  background: rgba(194, 109, 24, 0.12);
  color: var(--warning);
}

.status-pill.is-muted {
  background: rgba(23, 33, 47, 0.08);
  color: var(--ink-soft);
}

.prompt-sample {
  margin: 0;
  padding: 18px;
  max-width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: #17212f;
  color: #f4f7fb;
  line-height: 1.55;
}

.architecture-item,
.method-card,
.conclusion-card {
  min-height: 100%;
}

.footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 52px;
  padding-top: 26px;
  border-top: 1px solid rgba(23, 33, 47, 0.08);
  text-align: center;
}

.footer code {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(23, 33, 47, 0.06);
}

.page-shell,
.panel,
.topbar,
.loading-card {
  animation: rise 540ms ease both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .hero,
  .filter-grid,
  .plot-grid,
  .case-grid,
  .method-grid,
  .conclusion-grid,
  .grid-two,
  .detail-grid,
  .split-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .stat-strip,
  .snapshot-grid,
  .battery-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 24px, 1240px);
    padding-top: 12px;
  }

  .topbar {
    position: static;
    flex-direction: column;
    align-items: flex-start;
    border-radius: 24px;
  }

  .topbar nav {
    flex-wrap: wrap;
  }

  .stat-strip,
  .metric-grid,
  .snapshot-grid,
  .battery-list,
  .architecture-list {
    grid-template-columns: 1fr;
  }

  .series-line {
    grid-template-columns: 84px minmax(0, 1fr) 64px;
    gap: 10px;
  }

  .panel {
    padding: 18px;
  }

  .hero-copy h1 {
    font-size: clamp(2.5rem, 14vw, 4.4rem);
  }
}