/* Brief detail page */

.brief-nav {
  padding-top: 0.5rem;
  padding-bottom: 0;
}

.brief-nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.brief-nav-inner > * {
  min-width: 0;
}

.nav-link {
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-link:hover {
  color: var(--ink);
}

/* Hero */

.brief-hero {
  padding-bottom: 1.25rem;
}

.brief-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.brief-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.brief-pill {
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.7rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
}

.brief-headline {
  margin: 0 0 0.9rem;
  font-family: var(--display);
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  line-height: 1.12;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.brief-summary {
  max-width: 42rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.72;
  overflow-wrap: anywhere;
}

.brief-publication-note {
  max-width: 42rem;
  margin: 0.85rem 0 0;
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.6;
}

.brief-trust-summary {
  margin: 0.75rem 0 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  overflow-wrap: anywhere;
}

.brief-themes {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.brief-themes li {
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.4;
}

.brief-themes li::before {
  content: "—";
  margin-right: 0.5rem;
  color: var(--line-strong);
}

/* Section titles */

.brief-section-title {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Papers */

.brief-papers {
  padding-top: 0;
}

.paper-list {
  display: grid;
  gap: 0.95rem;
}

.paper-card {
  display: grid;
  gap: 0.6rem;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

.paper-head {
  display: flex;
  align-items: start;
  gap: 0.65rem;
}

.paper-head > div {
  min-width: 0;
  flex: 1;
}

.paper-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.55rem;
  height: 1.55rem;
  margin-top: 0.1rem;
  border-radius: 50%;
  background: var(--ink);
  color: var(--dark-ink);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
}

.paper-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.paper-title a {
  color: inherit;
  text-decoration: none;
}

.paper-title a:hover {
  color: var(--accent-strong);
}

.paper-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.paper-meta > * {
  min-width: 0;
}

.paper-id {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.paper-score {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-strong);
  padding: 0.05rem 0.35rem;
  border: 1px solid rgba(122, 145, 80, 0.3);
  border-radius: 999px;
}

.paper-take {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.62;
  margin: 0;
  overflow-wrap: anywhere;
}

.paper-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.paper-tag {
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.65rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

/* Scoring explainer */

.brief-scoring {
  padding-top: 0;
}

.scoring-intro {
  margin: 0 0 1rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 42rem;
}

.scoring-table {
  display: grid;
  gap: 0;
  max-width: 42rem;
}

.scoring-row {
  display: grid;
  grid-template-columns: 10rem 1fr 2.5rem;
  gap: 0.5rem;
  align-items: baseline;
  padding: 0.6rem 0;
  border-top: 1px solid var(--line);
}

.scoring-dim {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.scoring-label {
  font-size: 0.82rem;
  font-weight: 600;
}

.scoring-weight {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink-soft);
}

.scoring-desc {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.scoring-avg {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink-soft);
  text-align: right;
}

.scoring-note {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

/* Open questions */

.brief-questions {
  padding-top: 0;
}

.open-questions,
.watch-items {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding-left: 1.25rem;
  max-width: 42rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* Ask section (Q&A) */

.brief-ask {
  padding-top: 0;
}

.ask-intro {
  margin: 0 0 1rem;
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.5;
  max-width: 42rem;
}

.chat-log {
  display: grid;
  gap: 0.6rem;
  max-height: 20rem;
  overflow: auto;
  max-width: 42rem;
}

.chat-msg {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.chat-msg-assistant {
  background: rgba(122, 145, 80, 0.05);
}

.chat-msg-user {
  background: rgba(0, 0, 0, 0.02);
}

.chat-msg-role {
  margin: 0 0 0.25rem;
  color: var(--ink-soft);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.chat-msg-body {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  white-space: pre-line;
  overflow-wrap: anywhere;
}

.chat-msg-thinking .chat-msg-body {
  opacity: 0.5;
}

.ask-form {
  margin-top: 0.75rem;
  max-width: 42rem;
}

.ask-controls {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.5rem;
  align-items: center;
}

.ask-input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink);
  font: inherit;
  font-size: 0.88rem;
}

.ask-input:focus {
  outline: 2px solid rgba(122, 145, 80, 0.24);
  border-color: var(--accent);
}

.ask-input::placeholder {
  color: var(--ink-soft);
}

.ask-mode {
  min-height: 2.75rem;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink-soft);
  font: inherit;
  font-size: 0.78rem;
}

.ask-form .button {
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
}

.ask-form .button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Date strip navigation */

.date-strip {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
  padding: 0.25rem 0;
}

.date-item {
  flex-shrink: 0;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.04em;
}

.date-item:hover {
  border-color: var(--accent);
  color: var(--ink);
}

.date-item--active {
  background: var(--ink);
  color: var(--dark-ink);
  border-color: var(--ink);
}

.date-select {
  display: none;
  width: 100%;
  min-height: 2.5rem;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink-soft);
  font: inherit;
  font-size: 0.78rem;
}

.nav-arrow {
  flex-shrink: 0;
  min-width: 1.5rem;
  text-align: center;
}

/* Trust badges */

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.2rem 0 0.1rem;
}

.trust-badge {
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.trust-badge--positive {
  border-color: rgba(122, 145, 80, 0.5);
  color: rgba(122, 145, 80, 0.9);
}

.trust-badge--venue {
  border-color: rgba(80, 120, 180, 0.4);
  color: rgba(80, 120, 180, 0.9);
}

/* Paper structured analysis */

.paper-analysis {
  display: grid;
  gap: 0.45rem;
  margin: 0.2rem 0 0.15rem;
  padding: 0.85rem 0.95rem;
  border-left: 2px solid var(--line);
  border-radius: 0.85rem;
  background: rgba(0, 0, 0, 0.02);
}

.paper-analysis-item {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.87rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.paper-analysis-item strong {
  color: var(--ink);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Scoring layer styles */

.scoring-layer {
  border-left: 3px solid transparent;
}

.scoring-layer:nth-child(-n+3) {
  border-left-color: rgba(122, 145, 80, 0.3);
}

.scoring-layer:last-child {
  border-left-color: rgba(80, 120, 180, 0.3);
}

@media (max-width: 1080px) {
  .scoring-row {
    grid-template-columns: 8rem 1fr 2.5rem;
  }
}

@media (max-width: 720px) {
  .brief-hero {
    padding-bottom: 1rem;
  }

  .brief-headline {
    font-size: 1.7rem;
    line-height: 1.08;
  }

  .brief-summary {
    font-size: 1rem;
    line-height: 1.76;
  }

  .brief-nav-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .date-strip {
    display: none;
  }

  .date-select {
    display: block;
    flex: 1;
  }

  .scoring-row {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .scoring-avg {
    text-align: left;
  }

  .paper-card {
    gap: 0.7rem;
    padding: 1rem;
  }

  .paper-title {
    font-size: 0.98rem;
  }

  .paper-take {
    font-size: 0.94rem;
  }

  .paper-analysis {
    padding: 0.8rem 0.85rem;
  }

  .paper-analysis-item {
    font-size: 0.86rem;
    line-height: 1.58;
  }

  .paper-analysis-item strong {
    display: block;
    margin-bottom: 0.15rem;
  }

  .trust-badges {
    gap: 0.3rem;
  }

  .ask-controls {
    grid-template-columns: 1fr;
  }
}