:root {
  --bg: #f7f5ef;
  --panel: #fffefa;
  --ink: #242720;
  --dim: #64675e;
  --line: #dddfd4;
  --gold: #765d24;
  --gold-soft: #f2e9d3;
  --green: #355b43;
  --green-soft: #e9f1e9;
  --red: #993d36;
  --red-soft: #fbefec;
  --serif: Georgia,'Iowan Old Style',serif;
  --sans: -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono: ui-monospace,SFMono-Regular,Consolas,monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.65 var(--sans);
}

[hidden] {
  display: none!important;
}

a {
  color: var(--gold);
  text-underline-offset: 4px;
}

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

button,a,input,select,summary,textarea {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
  border: 1px solid #c5c8bb;
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  padding: 9px 14px;
  min-height: 44px;
  font-size: 13px;
  font-weight: 600;
}

button:hover {
  background: #f0f0e8;
  border-color: #919786;
}

button:disabled {
  opacity: .5;
  cursor: not-allowed;
}

button.primary,.primary {
  background: var(--green);
  color: white;
  border-color: var(--green);
  padding: 12px 22px;
}

button.primary:hover {
  background: #294835;
}

.text-button {
  background: transparent;
  border-color: transparent;
  color: var(--gold);
}

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.skip {
  position: fixed;
  top: -100px;
  left: 12px;
  background: var(--ink);
  color: white;
  padding: 12px;
  z-index: 99;
}

.skip:focus {
  top: 10px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.topbar {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 18px 32px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand {
  font: 600 15px var(--serif);
  letter-spacing: 2px;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}

.brand span {
  color: var(--gold);
  font-size: 23px;
  margin-right: 10px;
}

.connection {
  margin-left: auto;
  font-size: 12px;
  color: var(--green);
}

.quiet {
  font-size: 12px;
  color: var(--dim);
}

.pill {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: 4px 10px;
  font: 11px/1.4 var(--mono);
  color: var(--dim);
  white-space: normal;
}

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

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

.pill.bad {
  background: var(--red-soft);
  color: var(--red);
}

.demo-banner {
  background: var(--gold-soft);
  color: var(--gold);
  padding: 10px 32px;
  font-size: 13px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.demo-banner a {
  margin-left: auto;
}

.layout {
  display: grid;
  grid-template-columns: 240px minmax(0,1fr);
  max-width: 1450px;
  margin: auto;
}

.sidebar {
  padding: 40px 26px;
  border-right: 1px solid var(--line);
  position: sticky;
  top: 81px;
  height: calc(100vh - 81px);
}

.eyebrow {
  font: 10px var(--mono);
  letter-spacing: 1.6px;
  color: var(--gold);
}

.sidebar h2 {
  font: 24px var(--serif);
  margin-top: 12px;
}

.sidebar p {
  color: var(--dim);
  font-size: 13px;
}

.sidebar nav {
  display: grid;
  gap: 7px;
  margin-top: 32px;
}

.sidebar nav a {
  text-decoration: none;
  color: var(--ink);
  padding: 9px 5px;
  font-size: 13px;
}

.sidebar nav a:hover {
  color: var(--gold);
  background: var(--gold-soft);
  border-radius: 4px;
}

.sidebar-foot {
  margin-top: 60px;
  font: italic 13px/1.8 var(--serif);
  color: var(--gold);
}

.sidebar-foot span {
  color: var(--dim);
}

main {
  padding: 28px 48px 50px;
  min-width: 0;
  max-width: 1140px;
}

.panel,.node-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 2px #24272003;
}

h1 {
  font: normal clamp(28px,4vw,42px)/1.2 var(--serif);
  letter-spacing: -.8px;
  margin: 12px 0;
}

h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}

h3 {
  font-size: 14px;
  margin: 20px 0 8px;
}

p {
  margin: 9px 0 16px;
}

small,.subtle {
  font-size: 12px;
  color: var(--dim);
}

.section-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.node-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 20px;
  margin: 22px 0;
}

.node-grid strong,.outcomes strong {
  display: block;
  font: 14px/1.8 var(--mono);
  overflow-wrap: anywhere;
}

.node-grid small {
  display: block;
}

.metric-label {
  font: 10px var(--mono);
  letter-spacing: 1px;
  color: var(--dim);
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.intro {
  margin: 42px 0 28px;
}

.intro p {
  font-size: 14px;
  color: var(--dim);
}

label {
  display: block;
  font-size: 13px;
  margin: 17px 0 7px;
}

textarea,input,select {
  border: 1px solid #c5c8bb;
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  padding: 11px 13px;
  max-width: 100%;
  min-height: 44px;
}

textarea {
  display: block;
  width: 100%;
  resize: vertical;
  min-height: 140px;
  line-height: 1.65;
  font-size: 16px;
}

textarea::placeholder {
  color: #75796c;
}

select {
  width: 100%;
  font-size: 13px;
}

input[type=search] {
  width: 100%;
  margin-top: 18px;
}

input[type=number] {
  width: 90px;
}

.toolbar label {
  margin: 0;
}

.examples {
  margin-top: 18px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin: 14px 0;
}

.tabs button {
  border-color: transparent;
  background: transparent;
  font-size: 12px;
  min-height: 38px;
  padding: 7px 12px;
}

.tabs button.selected {
  background: var(--gold-soft);
  color: var(--gold);
}

.example-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.example {
  display: block;
  text-align: left;
  background: var(--bg);
  border-color: var(--line);
  padding: 13px 15px;
  font-weight: 400;
}

.example b {
  display: block;
  font-size: 13px;
  margin-bottom: 5px;
}

.example small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  line-height: 1.65;
}

.composer-bottom {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.composer-bottom>div {
  max-width: 390px;
  flex: 1;
}

.composer-bottom label {
  margin: 0 0 8px;
}

.small-label {
  font: 10px var(--mono);
  letter-spacing: 1px;
  color: var(--dim);
}

.composer-bottom small {
  display: block;
  margin-top: 6px;
}

.advanced {
  margin-top: 20px;
}

.checks {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.checks label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checks input {
  min-height: auto;
  accent-color: var(--green);
}

summary {
  cursor: pointer;
  min-height: 44px;
  display: list-item;
  align-content: center;
  font-size: 13px;
  font-weight: 600;
}

details {
  border-top: 1px solid var(--line);
  padding-top: 9px;
  margin-top: 15px;
}

details details {
  margin-top: 8px;
}

.pipeline {
  display: grid;
  grid-template-columns: repeat(6,1fr);
  padding: 0;
  list-style: none;
  margin: 24px 0;
  gap: 5px;
}

.pipeline li {
  font-size: 11px;
  color: var(--dim);
  border-top: 3px solid var(--line);
  padding-top: 9px;
}

.pipeline li.current {
  border-color: var(--gold);
  color: var(--gold);
  font-weight: 700;
}

.pipeline li.complete {
  border-color: var(--green);
  color: var(--green);
}

.empty {
  text-align: center;
  padding: 22px 12px;
}

.empty>span {
  font-size: 27px;
  color: var(--gold);
}

.empty h3 {
  font: 21px var(--serif);
  margin-top: 12px;
}

.empty p {
  font-size: 13px;
  color: var(--dim);
}

.request {
  border-left: 3px solid var(--gold);
  padding-left: 16px;
}

.request p {
  font: 18px/1.5 var(--serif);
  overflow-wrap: anywhere;
}

.outcomes {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 15px;
  background: var(--bg);
  padding: 16px;
  border-radius: 6px;
  margin: 20px 0;
}

.explanation {
  font-size: 14px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.notice {
  border: 1px solid #d9caa3;
  background: #fbf6e9;
  padding: 14px 16px;
  border-radius: 6px;
  font-size: 13px;
  color: #695422;
  margin-bottom: 18px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.danger {
  background: var(--red-soft);
  color: var(--red);
  border-color: #dfb2aa;
}

.evidence {
  margin-top: 12px;
}

.evidence-row {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  flex-wrap: wrap;
}

.evidence-row .value {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  overflow-wrap: anywhere;
}

.pass {
  color: var(--green);
}

.fail {
  color: var(--red);
}

pre {
  font: 12px/1.8 var(--mono);
  padding: 16px;
  background: #f4f3ee;
  border: 1px solid var(--line);
  border-radius: 6px;
  max-height: 350px;
  overflow: auto;
  white-space: pre;
  tab-size: 4;
}

.diff .add {
  color: #28553a;
  background: #e2eee2;
  display: block;
}

.diff .del {
  color: #8a362f;
  background: #fae7e1;
  display: block;
}

.diff .hunk {
  color: var(--gold);
  display: block;
}

.diff .context {
  display: block;
}

.diff-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 10px 0;
}

#feed {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 300px;
}

#progress-message {
  margin-bottom: 0;
}

.history-row {
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.history-row:last-child {
  border: 0;
}

.history-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: start;
}

.history-top button {
  text-align: left;
  border: 0;
  background: transparent;
  font-size: 14px;
  padding: 0;
  min-height: 44px;
  overflow-wrap: anywhere;
  font-weight: 500;
}

.history-bottom {
  display: flex;
  gap: 8px 15px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 11px;
  color: var(--dim);
}

.history-bottom button {
  font-size: 11px;
  padding: 4px 10px;
}

.history-empty {
  color: var(--dim);
  font-size: 13px;
  padding: 26px 0;
}

.help p {
  font-size: 13px;
  color: var(--dim);
}

code {
  font: 12px var(--mono);
  overflow-wrap: anywhere;
}

footer {
  text-align: center;
  color: var(--dim);
  font-size: 11px;
  margin-top: 40px;
  line-height: 2;
}

.toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: white;
  padding: 14px 22px;
  border-radius: 8px;
  max-width: calc(100% - 32px);
  box-shadow: 0 4px 20px #0002;
  z-index: 20;
  font-size: 13px;
}

dialog {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  max-width: 500px;
  width: calc(100% - 32px);
  color: var(--ink);
  background: var(--panel);
}

dialog::backdrop {
  background: #20231b66;
}

dialog p {
  white-space: pre-wrap;
  font-size: 14px;
  margin: 18px 0 24px;
}

dialog form {
  justify-content: end;
}

.landing {
  max-width: 1120px;
  margin: auto;
  padding: 0 32px;
}

.landing-nav {
  display: flex;
  gap: 25px;
  align-items: center;
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
}

.landing-nav .brand {
  margin-right: auto;
}

.hero {
  padding: 85px 0 65px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 55px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(40px,6vw,68px);
  line-height: 1.08;
}

.hero .lede {
  font-size: 17px;
  color: var(--dim);
  max-width: 500px;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 20px;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
}

.button-link.primary {
  color: white;
}

.hero-preview {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 15px 45px #2427200b;
}

.hero-preview blockquote {
  font: 22px/1.45 var(--serif);
  margin: 22px 0;
}

.preview-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.preview-step small {
  margin-left: auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 18px;
}

.feature-grid .panel {
  margin: 0;
}

.feature-grid h3 {
  font: 21px var(--serif);
  margin-top: 0;
}

.feature-grid p {
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 0;
}

.landing section {
  margin: 30px 0 65px;
}

.landing section>h2 {
  font: 32px var(--serif);
  margin-bottom: 12px;
}

.install-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

.landing pre {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: none;
}

.install-command {
  font-size: 12px;
}

.install-copy-row {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

.faq details p {
  font-size: 14px;
  color: var(--dim);
}

@media(max-width:1050px) {
  .layout {
    grid-template-columns: 190px minmax(0,1fr);
  }
  .sidebar {
    padding: 30px 18px;
  }
  main {
    padding: 25px;
  }
  .topbar {
    padding: 16px 22px;
  }
  .hero {
    gap: 25px;
  }
  .feature-grid {
    gap: 10px;
  }
}

@media(max-width:760px) {
  .topbar {
    padding: 12px 16px;
    gap: 8px;
    flex-wrap: wrap;
  }
  .brand {
    font-size: 13px;
    letter-spacing: 1px;
  }
  .connection {
    order: 4;
    width: 100%;
    margin: 0;
  }
  .quiet {
    margin-left: auto;
  }
  .layout {
    display: block;
  }
  .sidebar {
    display: none;
  }
  main {
    padding: 18px 14px;
  }
  .panel,.node-card {
    padding: 18px;
  }
  .intro {
    margin: 30px 0 20px;
  }
  .node-grid {
    gap: 12px;
  }
  .node-grid strong {
    font-size: 12px;
  }
  .metric-label {
    font-size: 9px;
    letter-spacing: .5px;
  }
  .node-grid small {
    font-size: 11px;
  }
  .node-card .toolbar button {
    flex: 1 1 40%;
  }
  .composer-bottom {
    align-items: stretch;
    flex-direction: column;
    gap: 15px;
  }
  .composer-bottom>div {
    max-width: none;
  }
  .example-grid {
    grid-template-columns: 1fr;
  }
  .outcomes {
    gap: 9px;
    padding: 12px;
  }
  .outcomes strong {
    font-size: 11px;
  }
  .demo-banner {
    padding: 10px 16px;
  }
  .demo-banner a {
    margin: 0;
  }
  .section-line {
    flex-wrap: wrap;
  }
  .landing {
    padding: 0 18px;
  }
  .landing-nav {
    gap: 12px;
    flex-wrap: wrap;
  }
  .landing-nav a:not(.brand) {
    font-size: 12px;
  }
  .hero {
    padding: 45px 0 25px;
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 44px;
  }
  .feature-grid,.install-grid {
    grid-template-columns: 1fr;
  }
  .landing section {
    margin-bottom: 40px;
  }
  .landing-nav .brand {
    width: 100%;
  }
  .history-top {
    flex-wrap: wrap;
  }
  html {
    scroll-padding-top: 120px;
  }
}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none!important;
    animation: none!important;
  }
}

#demo-scenario {
  font-size: 12px;
  min-height: 36px;
  width: auto;
  max-width: 250px;
}

.setting {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(120px,230px);
  gap: 15px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.setting label {
  margin: 0;
}

.setting small {
  display: block;
}

.setting input:not([type=checkbox]),.setting select {
  width: 100%;
}

.setting input[type=checkbox] {
  min-height: auto;
  width: 20px;
  height: 20px;
  accent-color: var(--green);
}

@media(max-width:550px) {
  .setting {
    grid-template-columns: 1fr;
  }
  #scenario {
    width: 100%;
  }
}

#scenario {
  max-width: 280px;
}

#settings-fields {
  max-height: 650px;
  overflow: auto;
  padding: 0 4px;
}

#save-settings {
  margin-top: 18px;
}

/* ----- node facts, alerts ------------------------------------------------- */

.facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 14px 0;
}

.facts > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#node-alerts .notice {
  margin: 0 0 12px;
}

#chain-note {
  margin: 12px 0 0;
}

/* ----- predictions and questions ------------------------------------------ */

.question {
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 14px 0;
  padding: 12px 14px;
}

.question legend {
  font-weight: 600;
  padding: 0 6px;
}

.choice {
  align-items: flex-start;
  cursor: pointer;
  display: flex;
  gap: 10px;
  margin: 8px 0;
  font-weight: 400;
}

.choice input {
  flex: none;
  margin-top: 5px;
  width: auto;
}

#followup-result {
  margin: 10px 0 0;
}

.needs {
  color: var(--gold);
}

/* ----- comparison with the unmodified node -------------------------------- */

.verdict {
  border-left: 4px solid var(--green);
  font-size: 19px;
  margin-top: 22px;
  padding-left: 12px;
}

.verdict.differs {
  border-left-color: var(--red);
}

.comparison {
  display: grid;
  gap: 10px;
  margin: 14px 0 20px;
}

.cmp-row {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--green);
  border-radius: 8px;
  padding: 10px 14px;
}

.cmp-row.differs,
.cmp-row.error {
  border-left-color: var(--red);
}

.cmp-row.skipped,
.cmp-row.info {
  border-left-color: var(--gold);
}

.cmp-head {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-weight: 600;
}

.cmp-badge {
  color: var(--green);
  font: 12px/1.4 var(--mono);
  white-space: nowrap;
}

.cmp-row.differs .cmp-badge,
.cmp-row.error .cmp-badge {
  color: var(--red);
}

.cmp-sides {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 8px 0;
}

.cmp-sides > div {
  display: flex;
  flex-direction: column;
}

.cmp-row p {
  color: var(--dim);
  margin: 6px 0 0;
}

.belief {
  color: var(--dim);
  font-family: var(--serif);
  font-style: italic;
}

#prediction-result {
  margin: 12px 0;
}

/* ----- the change, file by file ------------------------------------------- */

.diff-files {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  margin: 10px 0;
}

.diff-files .text-button {
  font: 13px/1.5 var(--mono);
  text-align: left;
}

.text-button.selected {
  font-weight: 700;
  text-decoration: underline;
}

/* ----- settings ----------------------------------------------------------- */

.setting .tip {
  border: 0;
  margin: 4px 0;
  padding: 0;
}

.setting .tip summary {
  font-size: 13px;
}

.setting .tip p {
  margin: 6px 0;
}

#settings-fields h3 {
  margin: 24px 0 2px;
}

.help h3 {
  margin: 22px 0 8px;
}

#networks-help {
  white-space: pre-line;
}

#predict-dialog {
  max-width: 640px;
}

@media(max-width: 760px) {
  .facts,
  .cmp-sides {
    grid-template-columns: 1fr;
  }

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

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

/* ----- landing page ------------------------------------------------------- */

.landing-main {
  max-width: none;
  padding: 0;
}

.hero-actions {
  margin-top: 25px;
}

.hero-note {
  margin-top: 15px;
}

/* ----- chains drawn block by block ---------------------------------------- */

.chain-picture {
  background: var(--bg);
  border-radius: 8px;
  display: grid;
  gap: 14px;
  margin: 14px 0;
  padding: 14px 16px;
}

.chain-lane {
  display: grid;
  gap: 4px;
}

.chain-blocks {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}

.blk {
  border: 1px solid var(--ink);
  border-radius: 3px;
  display: inline-block;
  font: 11px/14px var(--mono);
  height: 16px;
  text-align: center;
  width: 16px;
}

.blk.shared {
  background: var(--line);
}

.blk.stock {
  background: var(--green);
}

.blk.changed {
  background: var(--gold);
}

.blk.refused {
  background: var(--red-soft);
  border-color: var(--red);
  color: var(--red);
}

.chain-legend {
  align-items: center;
  color: var(--dim);
  display: flex;
  flex-wrap: wrap;
  font-size: 12px;
  gap: 5px 8px;
}

/* ----- sliders, statements ------------------------------------------------ */

.slider {
  display: grid;
  gap: 4px;
  margin-bottom: 12px;
}

.slider input {
  padding: 0;
  width: 100%;
}

.slider output {
  font: 600 18px/1.3 var(--mono);
}

.belief-options {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
}

.belief p {
  margin: 6px 0 0;
}

#curated-grid h3 {
  margin: 22px 0 2px;
}

#lesson-sources {
  margin: 12px 0;
}