:root {
  color-scheme: light;
  --bg: #f4f6fb;
  --bg-2: #e8edf5;
  --panel: rgba(255, 255, 255, 0.85);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --ink: #0e1726;
  --muted: #56647a;
  --accent: #1e6bff;
  --accent-2: #2ed3c4;
  --border: rgba(15, 23, 42, 0.12);
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.14);
  --glow: rgba(30, 107, 255, 0.12);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #050a12;
  --bg-2: #0c1523;
  --panel: rgba(11, 18, 31, 0.92);
  --panel-strong: rgba(12, 21, 36, 0.98);
  --ink: #e7eef8;
  --muted: #9fb0c7;
  --accent: #68b3ff;
  --accent-2: #37e0c4;
  --border: rgba(122, 150, 182, 0.2);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --glow: rgba(104, 179, 255, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 10%, var(--bg-2) 0%, transparent 40%),
    radial-gradient(circle at 85% 5%, var(--glow) 0%, transparent 45%),
    linear-gradient(160deg, var(--bg) 0%, var(--bg-2) 100%);
}

.page {
  padding: 48px clamp(20px, 4vw, 48px) 80px;
  max-width: 1280px;
  margin: 0 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(30, 107, 255, 0.14);
  color: var(--accent);
  letter-spacing: 0.2rem;
  font-size: 0.72rem;
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: "Sora", sans-serif;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 3.4rem);
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

p {
  line-height: 1.7;
  color: var(--ink);
}

code {
  font-family: "IBM Plex Sans", sans-serif;
  background: rgba(30, 107, 255, 0.12);
  padding: 2px 6px;
  border-radius: 6px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.9fr);
  gap: 32px;
  align-items: start;
  margin-bottom: 40px;
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.lede {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 580px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.metric-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.metric-label {
  text-transform: uppercase;
  letter-spacing: 0.18rem;
  font-size: 0.7rem;
  color: var(--muted);
}

.metric-value {
  font-family: "Sora", sans-serif;
  font-size: 1.6rem;
  margin-top: 10px;
}

.metric-note {
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.hero__panel {
  background: var(--panel-strong);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--shadow);
  position: sticky;
  top: 24px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.panel-title {
  font-family: "Sora", sans-serif;
  font-size: 1.1rem;
}

.panel-subtitle {
  font-size: 0.85rem;
  color: var(--muted);
}

.mode-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.filter-form {
  display: grid;
  gap: 14px;
}

.filter-form label {
  display: grid;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.filter-form input,
.filter-form select {
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  padding: 10px 12px;
  font-size: 0.95rem;
  color: var(--ink);
}

[data-theme="dark"] .filter-form input,
[data-theme="dark"] .filter-form select {
  background: rgba(7, 12, 20, 0.7);
}

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

.filter-actions .primary,
.filter-actions .secondary {
  flex: 1;
  padding: 10px 12px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  font-weight: 600;
}

.filter-actions .primary {
  background: var(--accent);
  color: white;
}

.filter-actions .secondary {
  background: transparent;
  border: 1px solid var(--border);
  text-align: center;
  text-decoration: none;
  color: var(--ink);
}

.panel-note {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--muted);
}

.panel-warning {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 107, 107, 0.12);
  color: #e84545;
  font-size: 0.82rem;
}

.access-gate {
  min-height: calc(100svh - 128px);
  display: grid;
  place-items: center;
}

.access-gate__panel {
  width: min(520px, 100%);
  padding: 28px;
  border-radius: 20px;
  border: 1px solid color-mix(in srgb, var(--border) 78%, var(--accent) 10%, transparent 12%);
  background:
    linear-gradient(
      145deg,
      color-mix(in srgb, var(--panel-strong) 74%, var(--bg-2) 26%) 0%,
      color-mix(in srgb, var(--panel-strong) 86%, var(--glow) 14%) 100%
    );
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.08);
}

.access-gate__eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.18rem;
  font-size: 0.72rem;
}

.access-gate__title {
  margin: 0 0 10px;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.access-gate__text {
  margin: 0 0 18px;
  color: var(--muted);
}

.access-gate__form {
  display: grid;
  gap: 10px;
}

.access-gate__form label {
  font-size: 0.85rem;
  color: var(--muted);
}

.access-gate__form input {
  width: 100%;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  background: color-mix(in srgb, var(--panel-strong) 86%, white 14%);
  color: var(--ink);
  padding: 12px 14px;
  font-size: 1rem;
}

.access-gate__form input:focus-visible {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border) 55%);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--glow) 65%, transparent);
}

.access-gate__error {
  margin: 0;
  color: #c73a3a;
  font-size: 0.88rem;
}

.access-gate__form button {
  margin-top: 4px;
  border: 1px solid color-mix(in srgb, var(--accent) 36%, var(--border) 64%);
  border-radius: 12px;
  padding: 11px 14px;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--panel-strong) 58%, var(--glow) 42%) 0%,
      color-mix(in srgb, var(--panel-strong) 72%, var(--glow) 28%) 100%
    );
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
}

.access-gate__form button:hover {
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.07);
}

.access-gate__help {
  margin: 14px 0 0;
  font-size: 0.78rem;
  color: color-mix(in srgb, var(--muted) 82%, transparent);
}

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 36px;
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--border) 70%, var(--accent) 12%, transparent 18%);
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--panel-strong) 72%, var(--bg-2) 28%) 0%,
      color-mix(in srgb, var(--panel-strong) 82%, var(--glow) 18%) 48%,
      color-mix(in srgb, var(--panel-strong) 88%, var(--bg) 12%) 100%
    );
  box-shadow:
    0 10px 30px rgba(15, 23, 42, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    inset 0 -1px 0 rgba(30, 107, 255, 0.05);
  backdrop-filter: blur(10px);
}

.toc a {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--border) 78%, var(--bg-2) 22%);
  text-decoration: none;
  color: var(--muted);
  font-size: 0.85rem;
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--panel-strong) 80%, var(--bg) 20%) 0%,
      color-mix(in srgb, var(--panel) 86%, var(--bg-2) 14%) 100%
    );
  transition: color 120ms ease, border-color 120ms ease, background-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.toc a:hover {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--border) 42%, var(--accent) 58%);
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--panel-strong) 70%, var(--glow) 30%) 0%,
      color-mix(in srgb, var(--panel) 82%, var(--glow) 18%) 100%
    );
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.06);
}

.toc a.is-active,
.toc a[aria-current="location"] {
  color: var(--ink);
  font-weight: 600;
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border) 60%);
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--panel-strong) 55%, var(--glow) 45%) 0%,
      color-mix(in srgb, var(--panel-strong) 70%, var(--glow) 30%) 100%
    );
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent),
    0 3px 10px rgba(15, 23, 42, 0.06);
}

.toc a:focus-visible {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border) 55%);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--glow) 65%, transparent),
    0 4px 10px rgba(15, 23, 42, 0.06);
}

.story-section {
  padding: 28px 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: 96px;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 18px;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.28rem;
  font-size: 0.68rem;
  color: var(--muted);
}

.story-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  margin-bottom: 18px;
}

.story-grid--wrap {
  display: block;
}

.story-grid--wrap::after {
  content: "";
  display: block;
  clear: both;
}

.story-text {
  display: grid;
  gap: 12px;
}

.story-grid--wrap .story-text {
  display: block;
}

.story-grid--wrap .story-text > * {
  margin: 0;
}

.story-grid--wrap .story-text > * + * {
  margin-top: 12px;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.step-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.step-number {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.12), transparent 60%),
    linear-gradient(160deg, rgba(123, 211, 193, 0.22), rgba(92, 141, 239, 0.16));
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.step-content {
  margin: 0;
  line-height: 1.65;
}

.story-chart {
  background: var(--panel);
  border-radius: 18px;
  border: 1px solid var(--border);
  padding: 16px;
  box-shadow: var(--shadow);
}

.story-grid--wrap .story-chart {
  float: right;
  width: min(48%, 640px);
  margin: 0 0 18px 24px;
}

.chart-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  padding: 12px;
}

.chart-card + .chart-card {
  margin-top: 14px;
}

.chart-card__header {
  margin-bottom: 8px;
}

.chart-card__header h3 {
  font-size: 0.98rem;
  margin: 0 0 4px;
}

.chart-card__header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.35;
}

.chart-card--interactive {
  cursor: pointer;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.chart-card--interactive:hover,
.chart-card--interactive:focus-visible {
  border-color: rgba(30, 107, 255, 0.35);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.12);
  transform: translateY(-1px);
  outline: none;
}

.chart {
  width: 100%;
  height: 280px;
}

.chart--mini {
  height: 200px;
  margin-top: 14px;
}

.chart--heat {
  height: 260px;
}

.chart--network {
  height: 320px;
}

.chart-note {
  font-size: 0.82rem;
  color: var(--muted);
  margin-top: 8px;
}

.adjacency {
  display: grid;
  gap: 16px;
  margin-top: 16px;
  max-height: 420px;
  overflow: auto;
  padding-right: 6px;
}

.adjacency-group {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
}

.adjacency-title {
  font-family: "Sora", sans-serif;
  font-size: 1rem;
  margin-bottom: 8px;
}

.adjacency-item {
  display: grid;
  grid-template-columns: 48px minmax(120px, 1fr) 120px;
  gap: 8px;
  align-items: start;
  font-size: 0.9rem;
  color: var(--muted);
  padding: 6px 0;
  border-top: 1px solid var(--border);
}

.adjacency-item:first-of-type {
  border-top: none;
}

.adjacency-direction {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.12rem;
  color: var(--accent);
}

.adjacency-kind {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.08rem;
  color: var(--muted);
  justify-self: end;
}

.adjacency-evidence {
  grid-column: 1 / -1;
  color: var(--ink);
  font-size: 0.85rem;
  padding-left: 56px;
}

.callout {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(30, 107, 255, 0.12);
  border: 1px solid rgba(30, 107, 255, 0.2);
  color: var(--ink);
}

.story-table {
  margin-top: 18px;
}

.table {
  display: grid;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.table-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  padding: 12px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.table-row:last-child {
  border-bottom: none;
}

.table-head {
  background: rgba(30, 107, 255, 0.12);
  font-weight: 600;
}

.story-table--scope {
  margin-top: 14px;
}

.table.table--scope-systems > .table-row {
  grid-template-columns: minmax(150px, 240px) minmax(0, 1fr) !important;
  gap: 10px;
  padding: 10px 12px;
  font-size: 0.92rem;
}

.table.table--scope-systems > .table-row > div {
  min-width: 0;
}

.table.table--scope-systems > .table-row > div:first-child {
  font-weight: 500;
}

summary {
  cursor: pointer;
  font-weight: 600;
  margin-bottom: 12px;
}

body.modal-open {
  overflow: hidden;
}

.chart-modal[hidden] {
  display: none;
}

.chart-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 24px;
}

.chart-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 14, 24, 0.36);
  backdrop-filter: blur(4px);
}

.chart-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(1100px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  overflow: auto;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--panel-strong);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
  padding: 18px;
}

.chart-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
}

[data-theme="dark"] .chart-modal__close {
  background: rgba(11, 18, 31, 0.8);
}

.chart-modal__header {
  padding-right: 48px;
  margin-bottom: 12px;
}

.chart-modal__header h3 {
  margin-bottom: 4px;
}

.chart-modal__header p {
  margin: 0;
  color: var(--muted);
}

.chart-modal__table .table {
  border-radius: 14px;
}

.drill-groups {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.drill-group {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
  border-radius: 16px;
  padding: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.drill-group__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.drill-group__label {
  font-family: "Sora", sans-serif;
  font-size: 0.95rem;
  line-height: 1.2;
  text-transform: capitalize;
}

.drill-group__count {
  font-size: 0.75rem;
  letter-spacing: 0.06rem;
  text-transform: uppercase;
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(30, 107, 255, 0.08);
}

.drill-system-list {
  position: relative;
  display: grid;
  gap: 8px;
  overflow: visible;
}

.drill-system {
  position: relative;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 11px;
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 220ms ease, background-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
  outline: none;
  overflow: visible;
  cursor: pointer;
}

.drill-system:hover,
.drill-system:focus-visible,
.drill-system.is-open {
  z-index: 5;
  border-color: rgba(30, 107, 255, 0.3);
  background: rgba(30, 107, 255, 0.06);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.1);
  transform: translateY(-1px);
}

.drill-system__row {
  display: block;
}

.drill-system__name {
  font-weight: 600;
  line-height: 1.25;
}

.drill-system__desc {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 8px);
  z-index: 3;
  margin-top: 0;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(30, 107, 255, 0.18);
  background: color-mix(in srgb, var(--panel-strong) 92%, white 8%);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.16);
  opacity: 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.88rem;
  transform: translateY(-4px) scale(0.99);
  transform-origin: top center;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 260ms ease,
    transform 300ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear 300ms;
}

.drill-system.is-open .drill-system__desc {
  opacity: 1;
  transform: translateY(0) scale(1);
  visibility: visible;
  transition:
    opacity 260ms ease,
    transform 300ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s;
}

.drill-empty {
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.drill-empty__title {
  font-family: "Sora", sans-serif;
  margin-bottom: 4px;
}

.drill-empty__text {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero__panel {
    position: static;
  }

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

  .story-grid--wrap {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .story-grid--wrap .story-chart {
    float: none;
    width: auto;
    margin: 0;
  }

  .story-grid--wrap .story-text {
    display: grid;
    gap: 12px;
  }

  .story-grid--wrap .story-text > * + * {
    margin-top: 0;
  }

  .step-card {
    grid-template-columns: 60px minmax(0, 1fr);
  }

  .step-number {
    width: 50px;
    height: 50px;
    font-size: 1.45rem;
    border-radius: 14px;
  }

  .table.table--scope-systems > .table-row {
    grid-template-columns: minmax(120px, 180px) minmax(0, 1fr) !important;
  }

  .chart-modal {
    padding: 12px;
  }

  .chart-modal__dialog {
    width: calc(100vw - 16px);
    max-height: calc(100vh - 16px);
    padding: 14px;
  }

  .drill-groups {
    grid-template-columns: 1fr;
  }

  .drill-system__row {
    display: block;
  }

  .drill-system__desc {
    left: -2px;
    right: -2px;
  }
}

@media print {
  html,
  body {
    background: #ffffff !important;
    color: #0e1726 !important;
  }

  .page {
    padding: 0;
    max-width: 100%;
  }

  .story-chart,
  .metric-card,
  .table,
  .adjacency-group {
    box-shadow: none !important;
    background: #ffffff !important;
    border-color: #cfd6e1 !important;
  }

  .toc a {
    border-color: #cfd6e1;
    color: #4a5a70;
  }
}