/* =============================================
   BRIEF DETAIL PAGE — CB-DXB-001
   Design Brief Color Palette & Typography
   ============================================= */

/* Custom Properties for Brief Pages */
:root {
  --civic-navy: #1B2A4A;
  --signal-teal: #2A9D8F;
  --insight-gold: #E9C46A;
  --off-white-brief: #FAFAFA;
  --light-grey-brief: #F5F5F5;
  --mid-grey: #999999;
  --dark-text: #2D2D2D;

  /* Font stacks for brief pages */
  --font-serif-brief: 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --font-mono: 'IBM Plex Mono', 'JetBrains Mono', 'Roboto Mono', monospace;
}

/* =============================================
   HEADER — Document Identity Bar
   ============================================= */

.brief-identity {
  background: #fff;
  padding: 80px 0 48px;
  border-bottom: 2px solid var(--civic-navy);
  margin-top: 0;
}

.brief-identity .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.brief-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--civic-navy);
  margin-bottom: 4px;
}

.brief-ref {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--civic-navy);
  margin-left: 16px;
}

.brief-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 700;
  color: var(--civic-navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 16px 0 12px;
}

.brief-question {
  font-family: var(--font-serif-brief), var(--font-display);
  font-size: clamp(18px, 3vw, 22px);
  font-style: italic;
  color: var(--dark-text);
  line-height: 1.5;
  margin: 0 0 32px;
}

/* Metadata Grid */
.brief-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px 32px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(8, 8, 8, 0.15);
}

.brief-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brief-meta-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-grey);
}

.brief-meta-value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--civic-navy);
  line-height: 1.5;
}

.brief-meta-value--text {
  font-family: var(--font-sans);
  font-size: 14px;
}

.brief-meta-value a {
  color: var(--civic-navy);
  text-decoration: underline;
  text-decoration-color: rgba(8, 8, 8, 0.3);
}

.brief-meta-value a:hover {
  text-decoration-color: var(--civic-navy);
}

/* =============================================
   VIDEO EMBED
   ============================================= */

.brief-video {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
  overflow: hidden;
  border-radius: 0;
  background: var(--civic-navy);
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mid-grey);
  text-align: center;
  margin-top: 12px;
}

/* =============================================
   TWO-COLUMN LAYOUT
   ============================================= */

.brief-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 48px 80px;
}

/* =============================================
   STICKY SIDEBAR / TOC
   ============================================= */

.brief-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
  max-height: calc(100vh - 140px);
  overflow-y: auto;
}

.brief-toc {
  margin-bottom: 32px;
}

.brief-toc-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--civic-navy);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--civic-navy);
}

.brief-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.brief-toc-list li {
  margin: 0;
}

.brief-toc-link {
  display: block;
  padding: 8px 0 8px 12px;
  color: var(--mid-grey);
  font-family: var(--font-mono);
  font-size: 12px;
  text-decoration: none;
  border-left: 2px solid transparent;
}

.brief-toc-link:hover {
  color: var(--civic-navy);
  border-left-color: rgba(8, 8, 8, 0.3);
}

.brief-toc-link.active {
  color: var(--civic-navy);
  border-left-color: var(--civic-navy);
  font-weight: 500;
}

/* Download Button */
.brief-download-btn {
  display: block;
  width: 100%;
  padding: 14px 16px;
  background: var(--civic-navy);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: 0;
}

.brief-download-btn:hover {
  background: #2a3f6a;
}

/* =============================================
   MAIN CONTENT AREA
   ============================================= */

.brief-content {
  max-width: 720px;
}

/* Sections */
.brief-section {
  margin-bottom: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(8, 8, 8, 0.1);
}

.brief-section:last-of-type {
  border-bottom: none;
}

.brief-section-title {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  color: var(--civic-navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--civic-navy);
}

/* Theme Titles */
.brief-theme-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--civic-navy);
  margin: 40px 0 8px;
}

.brief-theme-title:first-of-type {
  margin-top: 0;
}

.brief-pillar-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mid-grey);
  margin: 0 0 16px;
}

.pillar-highlight {
  color: var(--civic-navy);
  font-weight: 600;
}

/* Body Text */
.brief-body {
  font-family: var(--font-serif-brief), var(--font-display);
  font-size: 17px;
  line-height: 1.75;
  color: var(--dark-text);
  margin: 0 0 20px;
}

.brief-body:last-child {
  margin-bottom: 0;
}

.brief-italic {
  font-style: italic;
}

.brief-bold {
  font-weight: 600;
}

/* Byline */
.brief-byline {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--mid-grey);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(8, 8, 8, 0.1);
}

/* Subheadings */
.brief-subhead {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--civic-navy);
  margin: 32px 0 12px;
}

/* Lists */
.brief-list {
  font-family: var(--font-serif-brief), var(--font-display);
  font-size: 17px;
  line-height: 1.75;
  color: var(--dark-text);
  margin: 0 0 20px;
  padding-left: 24px;
}

.brief-list li {
  margin-bottom: 8px;
}

.brief-list a {
  color: var(--civic-navy);
  text-decoration: underline;
  text-decoration-color: rgba(8, 8, 8, 0.3);
}

.brief-list a:hover {
  text-decoration-color: var(--civic-navy);
}

/* =============================================
   PULL QUOTES
   ============================================= */

.brief-quote {
  margin: 40px 0;
  padding: 24px 0 24px 24px;
  border-left: 2px solid rgba(8, 8, 8, 0.3);  /* Institutional grey */
  background: transparent;
}

.brief-quote p {
  font-family: var(--font-serif-brief), var(--font-display);
  font-style: italic;
  font-size: 18px;
  line-height: 1.65;
  color: var(--civic-navy);
  margin: 0 0 12px;
}

.brief-quote cite {
  display: block;
  font-family: var(--font-sans);
  font-size: 14px;
  font-style: normal;
  color: var(--mid-grey);
  letter-spacing: 0.01em;
}

.sector-tag {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--civic-navy);
  font-style: normal;
}

/* Catalyst Quote Variant */
.brief-quote--catalyst {
  background: transparent;
  border-left-width: 3px;
  border-left-color: var(--civic-navy);  /* Authority color for key quotes */
  padding-left: 28px;
  border-radius: 0;
}

.brief-quote--catalyst::before {
  content: "CATALYST OBSERVATION";
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--civic-navy);  /* Navy instead of teal */
  margin-bottom: 12px;
  font-style: normal;
}

/* =============================================
   SRI SIGNAL PANELS
   ============================================= */

.sri-signal-panel {
  background: var(--light-grey-brief);
  border-radius: 0;
  padding: 24px;
  margin: 24px 0;
}

.sri-pillar-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--civic-navy);
  margin: 0 0 4px;
}

.sri-weight {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mid-grey);
}

.sri-question {
  font-family: var(--font-serif-brief), var(--font-display);
  font-size: 15px;
  font-style: italic;
  color: var(--dark-text);
  margin: 16px 0 12px;
}

.sri-score {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--civic-navy);
  margin-bottom: 12px;
}

.signal-label {
  color: var(--civic-navy);
}

.sri-interpretation {
  font-family: var(--font-serif-brief), var(--font-display);
  font-size: 15px;
  line-height: 1.7;
  color: var(--dark-text);
  margin: 0;
}

/* =============================================
   FRICTION POINT / ACTION ITEMS
   ============================================= */

.friction-question {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--civic-navy);
  line-height: 1.4;
  margin: 24px 0;
  padding: 20px 24px;
  background: transparent;
  border-left: 3px solid var(--civic-navy);
  border-radius: 0;
}

.action-item {
  background: var(--light-grey-brief);
  border-radius: 0;
  padding: 20px 24px;
  margin: 32px 0;
}

.action-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--insight-gold);
  margin-bottom: 8px;
}

.action-item p {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--civic-navy);
  margin: 0;
}

/* =============================================
   LOOP + WHO THIS SERVES - VISUAL GROUPING
   ============================================= */

/* Target the Self-Correcting Loop section (section VII) and Who This Serves */
#self-correcting-loop,
#who-this-serves {
  background: var(--light-grey-brief, #f8f9fa);
  padding: 32px;
  border-radius: 0;
  border-bottom: none;  /* Remove section divider */
}

#self-correcting-loop {
  border-radius: 12px 12px 0 0;
  margin-bottom: 0;
  padding-bottom: 24px;
}

#self-correcting-loop .brief-section-title {
  border-bottom: none;  /* Remove title underline */
}

#self-correcting-loop .self-correcting-loop {
  border-top: none;     /* Remove diagram top border */
  border-bottom: none;  /* Remove diagram bottom border */
  margin: 32px 0 0;     /* Adjust margin since no borders */
}

#who-this-serves {
  border-radius: 0 0 12px 12px;
  margin-top: 0;
  padding-top: 24px;
  border-top: 1px solid rgba(27, 42, 74, 0.1);  /* Keep only this subtle divider */
}

#who-this-serves .brief-section-title {
  border-bottom: none;  /* Remove title underline */
}

/* =============================================
   SELF-CORRECTING LOOP DIAGRAM
   ============================================= */

.self-correcting-loop {
  background: var(--light-grey-brief);
  border-radius: 0;
  padding: 48px 40px;
  margin: 56px 0;
  text-align: center;
  border-top: 2px solid var(--civic-navy);
  border-bottom: 2px solid var(--civic-navy);
}

.loop-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--civic-navy);
  margin-bottom: 32px;
}

.loop-diagram {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.loop-node {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--civic-navy);
  padding: 12px 18px;
  background: #fff;
  border: 2px solid var(--civic-navy);
  border-radius: 0;
}

.loop-node--active {
  background: var(--civic-navy);
  color: #fff;
  border-color: var(--civic-navy);
  border-width: 2px;
}

.loop-arrow {
  font-size: 24px;
  color: var(--mid-grey);
}

.loop-labels {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.loop-labels span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--civic-navy);
}

/* =============================================
   CITATION BLOCK
   ============================================= */

.brief-citation {
  background: var(--light-grey-brief);
  border-radius: 0;
  padding: 32px;
  margin: 48px 0 32px;
  border-top: 2px solid var(--civic-navy);
}

.citation-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--civic-navy);
  margin: 0 0 16px;
}

.citation-text {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--civic-navy);
  background: #fff;
  padding: 16px;
  border-radius: 0;
  border: 1px solid rgba(8, 8, 8, 0.15);
  margin: 0 0 16px;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

.citation-copy-btn {
  display: inline-block;
  padding: 10px 20px;
  background: var(--civic-navy);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 0;
  cursor: pointer;
}

.citation-copy-btn:hover {
  background: #2a3f6a;
}

.citation-copy-btn.copied {
  background: #2a3f6a;
  color: #fff;
}

/* =============================================
   BRIEF FOOTER INFO
   ============================================= */

.brief-footer-info {
  text-align: center;
  padding: 32px 0;
  border-top: 1px solid rgba(8, 8, 8, 0.1);
  margin-top: 32px;
}

.brief-footer-info p {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mid-grey);
  margin: 0 0 16px;
}

.brief-footer-info a {
  color: var(--civic-navy);
  text-decoration: underline;
}

.brief-footer-info a:hover {
  text-decoration-color: var(--civic-navy);
}

.next-node {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--civic-navy);
  margin-top: 24px;
}

.next-node strong {
  color: var(--civic-navy);
}

/* =============================================
   RESPONSIVE — MOBILE
   ============================================= */

@media (max-width: 968px) {
  .brief-layout {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px 32px 60px;
  }

  .brief-sidebar {
    position: relative;
    top: 0;
    max-height: none;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(8, 8, 8, 0.1);
  }

  .brief-toc-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .brief-toc-link {
    padding: 6px 12px;
    border: 1px solid var(--mid-grey);
    border-left-width: 1px;
    border-radius: 0;
    font-size: 11px;
  }

  .brief-toc-link:hover,
  .brief-toc-link.active {
    border-color: var(--civic-navy);
    background: transparent;
  }

  .brief-content {
    max-width: 100%;
  }

  .loop-diagram {
    flex-direction: column;
  }

  .loop-arrow {
    transform: rotate(90deg);
  }

  .loop-labels {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 600px) {
  .brief-identity {
    padding: 60px 0 40px;
  }

  .brief-meta-grid {
    grid-template-columns: 1fr;
  }

  .brief-video {
    padding: 32px 16px;
  }

  .brief-layout {
    padding: 40px 24px 60px;
  }

  .brief-section {
    margin-bottom: 48px;
    padding-bottom: 32px;
  }

  .brief-quote {
    margin: 24px 0;
    padding: 16px 0 16px 16px;
  }

  .sri-signal-panel {
    padding: 20px;
  }

  .self-correcting-loop {
    padding: 32px 20px;
  }

  .brief-citation {
    padding: 24px 16px;
  }
}

/* =============================================
   CONTRIBUTORS TABLE
   ============================================= */

.contributors-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-sans);
  font-size: 14px;
  margin: 24px 0;
}

.contributors-table thead {
  border-bottom: 2px solid var(--civic-navy);
}

.contributors-table th {
  text-align: left;
  padding: 12px 16px 12px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mid-grey);
}

.contributors-table td {
  padding: 12px 16px 12px 0;
  border-bottom: 1px solid rgba(8, 8, 8, 0.1);
  vertical-align: top;
  color: var(--dark-text);
}

.contributors-table tr:last-child td {
  border-bottom: none;
}

.contributors-table .sector-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--civic-navy);
  white-space: nowrap;
}

.contributors-table a {
  color: var(--civic-navy);
  text-decoration: underline;
  text-decoration-color: rgba(8, 8, 8, 0.3);
}

.contributors-table a:hover {
  text-decoration-color: var(--civic-navy);
}

@media (max-width: 600px) {
  .contributors-table {
    font-size: 13px;
  }

  .contributors-table th,
  .contributors-table td {
    padding: 10px 8px 10px 0;
  }
}

/* =============================================
   PRINT STYLES
   ============================================= */

@media print {
  body {
    margin: 0;
    padding: 2cm;
  }

  .brief-sidebar,
  .brief-video,
  .brief-download-btn,
  .citation-copy-btn {
    display: none;
  }

  .brief-layout {
    grid-template-columns: 1fr;
  }

  .brief-content {
    max-width: none;
  }

  .brief-section {
    page-break-inside: avoid;
  }

  .brief-quote {
    page-break-inside: avoid;
  }
}