:root {
  --ink: #191716;
  --muted: #67615b;
  --paper: #fbfaf7;
  --panel: #ffffff;
  --line: #ddd7cf;
  --soft: #f1eee8;
  --accent: #265f73;
  --accent-dark: #174252;
  --mark: #f1ded7;
  --clay: #8f5a4a;
  --green: #4d7557;
  --shadow: 0 14px 35px rgba(35, 29, 23, 0.08);
  --content-width: 980px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

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

button:disabled {
  cursor: default;
  opacity: 0.58;
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.93);
  backdrop-filter: blur(14px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  width: min(var(--content-width), calc(100% - 40px));
  min-height: 66px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  padding: 0;
  background: transparent;
  color: var(--ink);
  font-weight: 760;
  letter-spacing: 0;
}

.mark {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.77rem;
}

.trail-wrap {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
}

.header-back {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.94rem;
}

.header-back:hover {
  color: var(--ink);
}

.crumbs {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.94rem;
}

.crumbs span,
.crumbs button {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.crumbs button {
  max-width: min(520px, 50vw);
  padding: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
}

.crumbs button:hover {
  color: var(--ink);
}

.profile {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.92rem;
}

.page {
  width: min(var(--content-width), calc(100% - 40px));
  margin: 0 auto;
  padding: 38px 0 52px;
}

.home {
  display: grid;
  gap: 34px;
}

.home-intro {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(360px, 1fr);
  gap: 42px;
  align-items: end;
}

.kicker {
  margin: 0 0 12px;
  color: var(--clay);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 720px;
  margin-bottom: 16px;
  font-size: clamp(2.5rem, 7vw, 5.7rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.home-identity {
  display: grid;
  grid-template-rows: auto auto;
  row-gap: 10px;
}

.home-identity h1 {
  margin-bottom: 0;
}

.home-copy {
  display: grid;
  grid-template-rows: auto auto;
  row-gap: 10px;
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1.14rem, 2vw, 1.45rem);
  line-height: 1;
  text-align: right;
  transform: translateY(-22px);
}

.home-copy span {
  display: block;
}

.home-subtitle {
  margin: 0;
  color: var(--clay);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.episode-list {
  display: grid;
  gap: 12px;
}

.episode-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  width: 100%;
  min-height: 94px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.episode-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.episode-title-row h2 {
  margin: 0 0 8px;
  font-size: 1rem;
  line-height: 1.3;
  letter-spacing: 0;
}

.play-link {
  display: inline-grid;
  flex: 0 0 auto;
  width: 24px;
  height: 17px;
  margin-bottom: 8px;
  place-items: center;
  color: #ff0033;
}

.play-link:hover {
  color: #cc0029;
}

.play-link svg {
  display: block;
  width: 100%;
  height: 100%;
}

.play-link rect {
  fill: currentColor;
}

.play-link path {
  fill: #fff;
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.35;
}

.episode-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 720;
}

.btn:hover {
  background: var(--accent-dark);
}

.btn.secondary {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
}

.btn.secondary:hover {
  background: var(--soft);
}

.btn.secondary:disabled:hover {
  background: var(--panel);
}

.btn.ghost {
  background: transparent;
  color: var(--accent);
  padding-inline: 0;
}

.btn.ghost:hover {
  background: transparent;
  color: var(--accent-dark);
}

.room-header {
  margin-bottom: 26px;
}

.page-title-row {
  margin-bottom: 22px;
}

.page-title-row h1 {
  margin-bottom: 0;
  font-size: 1.35rem;
  line-height: 1.2;
}

.room-context-row {
  margin-bottom: 10px;
}

.room-subhead-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.room-wordmark {
  margin: 0;
  color: var(--clay);
  font-size: 1.38rem;
  font-variant-caps: small-caps;
  font-weight: 820;
  letter-spacing: 0.035em;
  line-height: 1;
}

.thread-list {
  display: grid;
  gap: 13px;
}

.idea-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  width: 100%;
  min-height: 76px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  text-align: left;
}

.episode-row:hover,
.episode-row:focus-visible,
.idea-row:hover,
.idea-row:focus-visible {
  background: var(--soft);
  outline: 0;
}

.idea-row h2 {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.35;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 680;
}

.composer {
  display: grid;
  gap: 18px;
  width: 100%;
}

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

.field-label-row {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 10px;
}

.field label,
.field-heading {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 720;
  line-height: 1.2;
}

.label-separator {
  color: var(--muted);
  font-size: 0.88rem;
}

input,
textarea,
.support-preview {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  line-height: 1.5;
}

input {
  min-height: 48px;
  padding: 0 14px;
}

textarea,
.support-preview {
  height: 238px;
  padding: 14px;
  overflow: auto;
  resize: vertical;
}

.support-preview {
  overflow: visible;
  white-space: pre-wrap;
}

mark {
  padding: 0;
  background: var(--mark);
  color: var(--ink);
}

.fallacy-anchor {
  position: relative;
  display: inline;
  margin: 0;
  padding: 0;
  border: 0;
  background: var(--mark);
  color: var(--ink);
  font: inherit;
  line-height: inherit;
  cursor: pointer;
  vertical-align: baseline;
  appearance: none;
}

.fallacy-popover {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 3;
  display: none;
  width: min(310px, calc(100vw - 44px));
  padding: 12px;
  border: 1px solid #eadcc7;
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  color: var(--muted);
  line-height: 1.4;
  text-align: left;
  white-space: normal;
}

.fallacy-popover strong,
.fallacy-popover span {
  display: block;
}

.fallacy-popover strong {
  margin-bottom: 6px;
  color: var(--ink);
  text-align: center;
}

.fallacy-popover span + span {
  margin-top: 6px;
}

.fallacy-anchor:hover .fallacy-popover,
.fallacy-anchor:focus .fallacy-popover,
.fallacy-anchor:focus-within .fallacy-popover,
.fallacy-anchor.is-locked .fallacy-popover {
  display: block;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.feedback {
  display: grid;
  gap: 12px;
  margin-top: 4px;
  padding: 0;
  border: 0;
  background: transparent;
}

.field-heading {
  margin: 0;
}

.fallacy-summary {
  margin: 0;
  color: var(--clay);
  font-size: 0.9rem;
  font-weight: 720;
}

.feedback-panel {
  padding: 16px;
  border: 1px solid #eadcc7;
  border-radius: 8px;
  background: var(--panel);
}

.structure-panel {
  overflow: visible;
  padding: 0;
  background: transparent;
}

.structure-sketch {
  display: block;
  width: min(100%, 460px);
  height: auto;
  margin: 0 auto;
  color: var(--ink);
}

.feedback-panel h3 {
  margin-bottom: 10px;
  font-size: 0.94rem;
}

.feedback-panel p,
.feedback-panel li {
  color: var(--muted);
  line-height: 1.5;
}

.feedback-panel p {
  margin-bottom: 10px;
}

.feedback-panel ul {
  margin: 0;
  padding-left: 20px;
}

.post-stack {
  display: grid;
  gap: 18px;
  width: 100%;
}

.post-detail-header h1 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.2;
}

.post-detail-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.view-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
}

.view-mode {
  position: relative;
  display: inline-grid;
  width: 30px;
  height: 28px;
  place-items: center;
  padding: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1;
}

.view-mode:hover,
.view-mode.is-active {
  color: var(--ink);
}

.view-mode.is-active {
  background: var(--soft);
}

.view-graph-icon {
  display: block;
  width: 21px;
  height: 21px;
}

.view-graph-icon circle {
  fill: currentColor;
}

.view-graph-icon path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 1.8;
}

.bubble {
  position: relative;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.bubble.response {
  box-shadow: none;
}

.thread-panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

.post-split-view {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
  gap: 18px;
  align-items: start;
}

.graph-panel {
  display: grid;
  min-height: 320px;
  place-items: center;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.graph-panel .structure-sketch {
  width: min(100%, 520px);
}

.fallacy-count {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin: 0 0 14px;
  padding: 0 10px;
  border: 1px solid #eadcc7;
  border-radius: 999px;
  background: var(--panel);
  color: var(--clay);
  font-size: 0.82rem;
  font-weight: 720;
}

.fallacy-count:hover,
.fallacy-count.is-active {
  background: var(--mark);
  color: var(--ink);
}

.bubble p {
  color: var(--muted);
  line-height: 1.58;
  white-space: pre-wrap;
}

.byline {
  margin: 16px 0 0;
  color: var(--green);
  font-size: 0.9rem;
  font-weight: 760;
}

.placeholder {
  padding: 16px 18px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  line-height: 1.45;
}

.back-row {
  margin-bottom: 20px;
}

@media (max-width: 780px) {
  .topbar {
    min-height: 58px;
  }

  .topbar-inner {
    width: min(100% - 28px, var(--content-width));
    min-height: 58px;
  }

  .profile {
    display: none;
  }

  .page {
    width: min(100% - 28px, var(--content-width));
    padding-top: 26px;
  }

  .home-intro {
    grid-template-columns: 1fr;
  }

  .home {
    gap: 24px;
  }

  .home-copy {
    margin-bottom: 0;
    text-align: left;
    transform: none;
  }

  .episode-row,
  .idea-row,
  .room-header {
    grid-template-columns: 1fr;
  }

  .room-header {
    align-items: start;
  }

  .room-subhead-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .post-detail-header,
  .post-split-view {
    grid-template-columns: 1fr;
  }

  .view-switcher {
    justify-self: start;
  }

  .idea-row .btn,
  .episode-row .btn,
  .room-header .btn {
    width: 100%;
  }

  .episode-actions {
    justify-content: stretch;
  }

  .episode-title-row {
    align-items: flex-start;
  }

}