/* SwitchCase Studios — Whitepaper shared stylesheet
 * Based on "Modern Uses for AI in the Workplace" design system
 */

:root {
  --red: #CC2929;
  --blue: #4A90D9;
  --yellow: #F5B800;
  --green: #2E8B40;
  --black: #0D0D0D;
  --white: #FAFAF7;
  --gray-100: #F4F4F0;
  --gray-200: #E8E8E2;
  --gray-400: #AEAEAD;
  --gray-600: #6B6B68;
  --gray-800: #2C2C2A;
  --ink: #1A1A18;
  --rule: #D4D4CE;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: #E8E6DF;
  font-family: 'DM Sans', sans-serif;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

.page-wrapper {
  max-width: 900px;
  margin: 0 auto;
  background: var(--white);
  box-shadow: 0 4px 60px rgba(0,0,0,0.18);
}

/* ── COVER ── */
.cover {
  background: var(--black);
  padding: 0;
  min-height: 520px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.cover-accent-bar {
  height: 6px;
  background: linear-gradient(90deg, var(--red) 25%, var(--blue) 25% 50%, var(--yellow) 50% 75%, var(--green) 75%);
}

.cover-inner {
  padding: 52px 64px 56px;
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 2;
}

.cover-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 80px;
}

.cover-logo img {
  height: 52px;
  width: auto;
}

.cover-meta {
  text-align: right;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  line-height: 1.9;
}

.cover-meta-link {
  color: inherit;
  text-decoration: none;
}

.cover-meta-link:hover { text-decoration: underline; }

.cover-body { flex: 1; }

.cover-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 20px;
}

.cover-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 58px;
  font-weight: 300;
  line-height: 1.1;
  color: var(--white);
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  max-width: 620px;
}

.cover-title em { font-style: italic; color: var(--yellow); }

.cover-subtitle {
  font-size: 15px;
  font-weight: 300;
  color: rgba(250,250,247,0.65);
  line-height: 1.65;
  max-width: 480px;
}

.cover-footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cover-footer-left {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.12em;
}

.cover-footer-right { display: flex; gap: 6px; }

.color-dot { width: 10px; height: 10px; border-radius: 50%; }

.cover-bg-shape {
  position: absolute;
  bottom: -80px;
  right: -60px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(74,144,217,0.12), transparent 70%);
  z-index: 1;
}

/* ── LAYOUT ── */
.doc-body { padding: 0 64px; }

/* ── TOC ── */
.toc-section {
  padding: 52px 0 40px;
  border-bottom: 1px solid var(--rule);
}

.section-label {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 28px;
}

.toc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.toc-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--gray-200);
  text-decoration: none;
  color: inherit;
}
.toc-item:hover .toc-title { color: var(--ink); }

.toc-num {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--gray-400);
  min-width: 24px;
}

.toc-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-800);
  transition: color 0.15s;
}

.toc-dots {
  flex: 1;
  border-bottom: 1px dotted var(--gray-400);
  margin-bottom: 3px;
  min-width: 20px;
}

.toc-page {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--gray-400);
}

/* ── SECTIONS ── */
.section { padding: 56px 0 0; scroll-margin-top: 20px; }
.section + .section { border-top: 1px solid var(--rule); }

.section-num-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.num-badge {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.num-badge.red    { background: var(--red); color: white; }
.num-badge.blue   { background: var(--blue); color: white; }
.num-badge.yellow { background: var(--yellow); color: var(--black); }
.num-badge.green  { background: var(--green); color: white; }
.num-badge.black  { background: var(--black); color: white; }
.num-badge.multi  { background: linear-gradient(135deg, var(--red) 50%, var(--blue) 50%); color: white; }

.section-tag {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-400);
}

h2.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 38px;
  font-weight: 400;
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

h3.sub-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 32px 0 12px;
  letter-spacing: -0.01em;
}

/* ── TYPOGRAPHY ── */
p {
  font-size: 14.5px;
  line-height: 1.8;
  color: #333331;
  margin-bottom: 18px;
  font-weight: 300;
}
p strong { font-weight: 600; color: var(--ink); }

ul.doc-list, ol.doc-list { margin: 0 0 24px 22px; color: #333331; font-size: 14.5px; line-height: 1.8; font-weight: 300; }
ul.doc-list li, ol.doc-list li { margin-bottom: 6px; }
ul.doc-list li strong, ol.doc-list li strong { font-weight: 600; color: var(--ink); }

/* ── PULL QUOTE ── */
.pull-quote {
  margin: 36px 0;
  padding: 28px 36px;
  border-left: 4px solid var(--yellow);
  background: var(--gray-100);
  position: relative;
}

.pull-quote::before {
  content: '\201C';
  font-family: 'Cormorant Garamond', serif;
  font-size: 72px;
  color: var(--yellow);
  position: absolute;
  top: -8px;
  left: 12px;
  line-height: 1;
}

.pull-quote p {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-style: italic;
  font-weight: 400;
  line-height: 1.55;
  color: var(--ink);
  margin: 0 0 10px 20px;
}

.pull-quote cite {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--gray-600);
  letter-spacing: 0.1em;
  margin-left: 20px;
}

/* ── STAT CARDS ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 32px 0 40px;
}

.stat-card {
  padding: 22px 18px;
  border-top: 3px solid transparent;
  background: var(--gray-100);
}

.stat-card.red { border-color: var(--red); }
.stat-card.blue { border-color: var(--blue); }
.stat-card.yellow { border-color: var(--yellow); }
.stat-card.green { border-color: var(--green); }

.stat-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 6px;
  color: var(--ink);
}

.stat-card.red .stat-number { color: var(--red); }
.stat-card.blue .stat-number { color: var(--blue); }
.stat-card.yellow .stat-number { color: #C49200; }
.stat-card.green .stat-number { color: var(--green); }

.stat-label {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--gray-600);
  line-height: 1.4;
}

.stat-source {
  font-family: 'Space Mono', monospace;
  font-size: 8.5px;
  color: var(--gray-400);
  margin-top: 8px;
  letter-spacing: 0.05em;
}

/* ── CHARTS ── */
.chart-container {
  margin: 32px 0 40px;
  background: var(--gray-100);
  padding: 28px 28px 20px;
  border: 1px solid var(--gray-200);
}

.chart-title {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-600);
  margin-bottom: 20px;
}

.chart-title span { color: var(--gray-400); font-weight: 400; }

.bar-chart { width: 100%; }

.bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.bar-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--gray-800);
  width: 160px;
  flex-shrink: 0;
  text-align: right;
}

.bar-track {
  flex: 1;
  height: 28px;
  background: var(--gray-200);
  position: relative;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  display: flex;
  align-items: center;
  padding-left: 10px;
  transition: width 0.6s ease;
}

.bar-value {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: white;
  white-space: nowrap;
}

.bar-fill.red { background: var(--red); }
.bar-fill.blue { background: var(--blue); }
.bar-fill.yellow { background: var(--yellow); }
.bar-fill.green { background: var(--green); }
.bar-fill.dark { background: var(--gray-800); }
.bar-fill.teal { background: #2A8FA0; }

.chart-legend {
  display: flex;
  gap: 20px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  color: var(--gray-600);
}

.legend-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── ETHICS / FEATURE GRID ── */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 28px 0 40px;
}

.feature-card {
  padding: 24px;
  border: 1px solid var(--gray-200);
  position: relative;
  background: var(--white);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
}

.feature-card.c1::before { background: var(--red); }
.feature-card.c2::before { background: var(--blue); }
.feature-card.c3::before { background: var(--yellow); }
.feature-card.c4::before { background: var(--green); }

.feature-icon { font-size: 22px; margin-bottom: 12px; }

.feature-card h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--ink);
}

.feature-card p { font-size: 13px; line-height: 1.7; margin: 0 0 10px; }

.feature-card ul { margin: 8px 0 0 18px; }
.feature-card ul li { font-size: 12.5px; line-height: 1.65; color: var(--gray-800); margin-bottom: 4px; }

/* ── DATA TABLES ── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0 40px;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-600);
  padding: 10px 14px;
  border-bottom: 2px solid var(--ink);
  background: var(--white);
}

.data-table td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-800);
  vertical-align: top;
  line-height: 1.5;
}

.data-table tr:nth-child(even) td { background: var(--gray-100); }
.data-table td.num, .data-table th.num { text-align: right; font-family: 'Space Mono', monospace; }

.tag-pill {
  display: inline-block;
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 20px;
  font-weight: 700;
}

.tag-pill.red    { background: rgba(204,41,41,0.1); color: var(--red); }
.tag-pill.blue   { background: rgba(74,144,217,0.12); color: #2868A8; }
.tag-pill.green  { background: rgba(46,139,64,0.12); color: var(--green); }
.tag-pill.yellow { background: rgba(245,184,0,0.15); color: #8A6800; }

/* ── ROADMAP ── */
.roadmap { margin: 28px 0 40px; position: relative; }

.roadmap::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--red), var(--blue), var(--yellow), var(--green));
}

.roadmap-item {
  display: flex;
  gap: 24px;
  margin-bottom: 28px;
  position: relative;
}

.roadmap-dot {
  width: 40px; height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: white;
  z-index: 1;
}

.roadmap-dot.r { background: var(--red); }
.roadmap-dot.b { background: var(--blue); }
.roadmap-dot.y { background: var(--yellow); color: var(--black); }
.roadmap-dot.g { background: var(--green); }

.roadmap-content { padding-top: 8px; }

.roadmap-phase {
  font-family: 'Space Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 5px;
}

.roadmap-content h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
}

.roadmap-content p { font-size: 13px; margin: 0; }

/* ── CALLOUT ── */
.callout {
  background: var(--black);
  color: var(--white);
  padding: 30px 36px;
  margin: 32px 0;
  position: relative;
  overflow: hidden;
}

.callout::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--red) 25%, var(--blue) 25% 50%, var(--yellow) 50% 75%, var(--green) 75%);
}

.callout h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 24px;
  font-weight: 400;
  color: var(--yellow);
  margin-bottom: 12px;
}

.callout p { color: rgba(250,250,247,0.75); font-size: 13.5px; margin: 0; }
.callout p + p { margin-top: 10px; }
.callout a { color: var(--yellow); text-decoration: none; border-bottom: 1px solid currentColor; }

/* ── CASE STUDIES ── */
.case-study {
  border-left: 4px solid var(--green);
  background: var(--gray-100);
  padding: 22px 28px;
  margin: 16px 0;
}
.case-study h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--green);
}
.case-study p { font-size: 13px; margin-bottom: 8px; }
.case-study p:last-child { margin-bottom: 0; }
.case-study p strong { color: var(--ink); }

/* ── TWO-COLUMN CARDS ── */
.pro-con {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 24px 0 40px;
}

.pc-card {
  padding: 22px 24px;
  border-radius: 2px;
}

.pc-card.pro { background: linear-gradient(135deg, rgba(46,139,64,0.1), rgba(245,184,0,0.08)); border-left: 4px solid var(--green); }
.pc-card.con { background: linear-gradient(135deg, rgba(204,41,41,0.08), rgba(204,41,41,0.04)); border-left: 4px solid var(--red); }

.pc-card h4 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.pc-card ul { list-style: none; padding: 0; margin: 0; }
.pc-card ul li {
  font-size: 13px;
  padding: 6px 0 6px 22px;
  position: relative;
  color: var(--gray-800);
  line-height: 1.55;
}

.pc-card.pro ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}
.pc-card.con ul li::before {
  content: '–';
  position: absolute;
  left: 4px;
  color: var(--red);
  font-weight: 700;
}

/* ── REFERENCES ── */
.references {
  padding: 48px 0 0;
  border-top: 1px solid var(--rule);
}

.ref-list {
  list-style: none;
  counter-reset: refs;
  margin-top: 16px;
}

.ref-list li {
  counter-increment: refs;
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 12px;
  line-height: 1.65;
  color: var(--gray-600);
}

.ref-list li::before {
  content: '[' counter(refs) ']';
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--gray-400);
  min-width: 30px;
  padding-top: 1px;
}

.ref-list li em { color: var(--ink); font-style: normal; font-weight: 500; }

/* ── FOOTER ── */
.doc-footer {
  background: var(--black);
  padding: 0;
  margin-top: 64px;
}

.footer-accent {
  height: 4px;
  background: linear-gradient(90deg, var(--red) 25%, var(--blue) 25% 50%, var(--yellow) 50% 75%, var(--green) 75%);
}

.footer-inner {
  padding: 32px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-logo img { height: 36px; width: auto; }

.footer-center { text-align: center; flex: 1; }

.footer-center p {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  margin: 0;
  line-height: 1.6;
  font-weight: 300;
}

.footer-link {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: var(--yellow);
  text-decoration: none;
  letter-spacing: 0.06em;
}

.footer-link:hover { text-decoration: underline; }

/* ── DIVIDER ── */
.section-end {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 8px 0 0;
}

.section-end-dots { display: flex; gap: 6px; }

.sed {
  width: 5px; height: 5px;
  border-radius: 50%;
  opacity: 0.3;
}

/* ── BACK LINK ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-400);
  text-decoration: none;
  padding: 10px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  background: var(--white);
  transition: border-color 0.15s, color 0.15s;
}
.back-link:hover { border-color: var(--ink); color: var(--ink); }
.back-link-logo {
  width: 16px;
  height: 16px;
  object-fit: contain;
  display: inline-block;
}

/* ── PRINT ── */
@media print {
  body { background: white; }
  .page-wrapper { box-shadow: none; max-width: 100%; }
  .cover, .callout, .num-badge, .stat-card, .bar-fill, .cover-accent-bar, .footer-accent,
  .feature-card::before, .doc-footer, .roadmap-dot, .pc-card {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .section { page-break-inside: avoid; }
  .cover { page-break-after: always; }
  .back-link { display: none; }
}

@media (max-width: 700px) {
  .cover-inner { padding: 32px 28px 36px; }
  .doc-body { padding: 0 28px; }
  .cover-header { margin-bottom: 48px; flex-direction: column; gap: 20px; align-items: flex-start; }
  .cover-meta { text-align: left; }
  .cover-title { font-size: 36px; }
  .cover-footer { flex-direction: column; gap: 16px; align-items: flex-start; }
  h2.section-title { font-size: 28px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid, .pro-con { grid-template-columns: 1fr; }
  .toc-grid { grid-template-columns: 1fr; }
  .bar-label { width: 100px; font-size: 10.5px; }
  .footer-inner { padding: 24px 28px; flex-direction: column; gap: 16px; text-align: center; }
  .pull-quote { padding: 22px 24px; }
  .pull-quote p { font-size: 17px; }
  .data-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .roadmap-item { gap: 16px; }
  .case-study { padding: 18px 22px; }
}