/* -------------------------------------------------------
   Sourcerer docs — shared stylesheet
   ------------------------------------------------------- */

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

:root {
  --bg:            #faf9f5;
  --surface:       #f3f1ea;
  --surface2:      #eceadf;
  --text:          #1a1815;
  --text-muted:    #5b5750;
  --border:        rgba(26, 24, 21, 0.14);
  --border-strong: rgba(26, 24, 21, 0.28);
  --accent:        #c87a1a;
  --amber:         #e8a840;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Spectral', Georgia, serif;
  font-size: 14px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* -------------------------------------------------------
   Layout
   ------------------------------------------------------- */

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 32px;
}

/* -------------------------------------------------------
   Site nav
   ------------------------------------------------------- */

.site-nav {
  border-bottom: 1px solid var(--border-strong);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.nav-wordmark {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.12s;
}
.nav-wordmark svg {
  height: 22px;
  width: auto;
  display: block;
}
.nav-wordmark:hover {
  opacity: 0.6;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.12s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  text-decoration: none;
}
.nav-links a.nav-github {
  color: var(--accent);
}
.nav-links a.nav-github:hover {
  color: var(--text);
}

/* -------------------------------------------------------
   Landing page header
   ------------------------------------------------------- */

header.hero {
  border-bottom: 1px solid var(--border-strong);
  padding: 72px 0 64px;
}

.hero-wordmark {
  display: block;
  margin-bottom: 24px;
}
.hero-wordmark svg {
  height: 60px;
  width: auto;
}

.subhead {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.lede {
  font-size: 19px;
  font-weight: 300;
  max-width: 600px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 36px;
}
.lede strong {
  font-weight: 500;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* -------------------------------------------------------
   Pitch section (problem statement)
   ------------------------------------------------------- */

.pitch-section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.pitch-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.pitch-headline {
  font-family: 'Spectral', serif;
  font-weight: 600;
  font-size: 32px;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 0;
}

.pitch-body p {
  font-size: 15px;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.78;
  margin-bottom: 16px;
}
.pitch-body p:last-child {
  margin-bottom: 0;
}
.pitch-body strong {
  color: var(--text);
  font-weight: 500;
}

/* -------------------------------------------------------
   Feature detail rows
   ------------------------------------------------------- */

.feature-detail-section {
  padding: 0 0 72px;
  border-bottom: 1px solid var(--border);
}
.feature-detail-section:first-of-type {
  padding-top: 72px;
}

.feature-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  border-top: 1px solid var(--border);
  padding: 36px 0;
}
.feature-row:last-child {
  border-bottom: 1px solid var(--border);
}

.feature-row-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding-top: 3px;
  padding-right: 32px;
}

.feature-row-body h3 {
  font-family: 'Spectral', serif;
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  color: var(--text);
}
.feature-row-body p {
  font-size: 14.5px;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.72;
  max-width: 540px;
}

/* -------------------------------------------------------
   Security strip
   ------------------------------------------------------- */

.security-section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  margin-top: 36px;
}

.security-item {
  padding: 24px 20px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.security-item-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.security-item-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
}

/* -------------------------------------------------------
   Inner page header
   ------------------------------------------------------- */

.page-header {
  border-bottom: 1px solid var(--border-strong);
  padding: 56px 0 48px;
}
.page-header h1 {
  font-family: 'Spectral', serif;
  font-weight: 600;
  font-size: 40px;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin-bottom: 12px;
}
.page-header p {
  font-size: 16px;
  font-weight: 300;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.65;
}

/* -------------------------------------------------------
   Section label
   ------------------------------------------------------- */

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 36px;
}

/* -------------------------------------------------------
   Features grid (landing page)
   ------------------------------------------------------- */

.features-section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.feature {
  padding: 28px 24px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.feature-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 10px;
}
.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* -------------------------------------------------------
   CTA
   ------------------------------------------------------- */

.cta-section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-github {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #faf9f5;
  background: #1a1815;
  border: none;
  border-radius: 0;
  padding: 13px 28px;
  text-decoration: none;
  transition: background 0.15s;
}
.btn-github:hover {
  background: #2e2b27;
  text-decoration: none;
}

.btn-secondary {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text);
  border: 1px solid var(--border-strong);
  padding: 12px 28px;
  text-decoration: none;
  transition: border-color 0.15s;
}
.btn-secondary:hover {
  border-color: var(--text);
  text-decoration: none;
}

/* -------------------------------------------------------
   Screenshot carousel
   ------------------------------------------------------- */

.carousel-section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}

.carousel-section .section-label {
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 32px;
  padding-right: 32px;
}

.carousel-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

.carousel {
  position: relative;
}

.carousel-track-outer {
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  line-height: 0;
  position: relative; /* for overlaid arrows */
  border-radius: 12px;
}

/* Overlaid arrow buttons */
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(250, 249, 245, 0.88);
  border: 1px solid var(--border-strong);
  cursor: pointer;
  font-size: 18px;
  color: var(--text);
  line-height: 1;
  transition: background 0.12s, opacity 0.12s;
  user-select: none;
  -webkit-user-select: none;
}
.carousel-arrow:hover {
  background: var(--bg);
}
.carousel-arrow:disabled {
  opacity: 0.2;
  cursor: default;
}
.carousel-arrow-prev { left: 12px; }
.carousel-arrow-next { right: 12px; }

.carousel-track {
  display: flex;
  transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 100%;
  line-height: 0;
  position: relative;
}

.carousel-slide img {
  display: block;
  width: 100%;
  height: auto;
}

/* Placeholder slides for screenshots not yet taken */
.carousel-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  aspect-ratio: 1440 / 900;
  width: 100%;
}
.carousel-placeholder-inner {
  text-align: center;
}
.carousel-placeholder-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.carousel-placeholder-title {
  font-family: 'Spectral', serif;
  font-size: 20px;
  font-weight: 300;
  color: var(--text-muted);
}

.carousel-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
}

.carousel-caption {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}
.carousel-caption em {
  font-style: normal;
  color: var(--text);
}

.carousel-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.carousel-dots {
  display: flex;
  gap: 7px;
  align-items: center;
}
.carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border-strong);
  cursor: pointer;
  border: none;
  padding: 0;
  transition: background 0.15s;
}
.carousel-dot.active {
  background: var(--text);
}

/* The below-frame prev/next buttons are removed in favour of overlaid arrows.
   .carousel-btn is kept for any other uses. */
.carousel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--border-strong);
  background: var(--bg);
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--text);
  line-height: 1;
  transition: background 0.12s, border-color 0.12s;
}
.carousel-btn:hover {
  background: var(--surface);
  border-color: var(--text);
}
.carousel-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.carousel-note {
  font-family: 'Spectral', Georgia, serif;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 10px;
}

@media (max-width: 720px) {
  .carousel-section .section-label,
  .carousel-wrap {
    padding-left: 20px;
    padding-right: 20px;
  }
}


/* -------------------------------------------------------
   Guide layout (two-column with sticky TOC)
   ------------------------------------------------------- */

.guide-wrap {
  padding: 56px 0 80px;
}

.guide-layout {
  display: grid;
  grid-template-columns: 188px 1fr;
  gap: 0;
  align-items: start;
}

.guide-toc {
  position: sticky;
  top: 68px;
  padding-right: 40px;
  padding-top: 4px;
}
.toc-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.toc-list {
  list-style: none;
}
.toc-list li {
  margin-bottom: 9px;
}
.toc-list a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--text-muted);
  text-decoration: none;
  line-height: 1.4;
}
.toc-list a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* -------------------------------------------------------
   Guide / prose content
   ------------------------------------------------------- */

.guide-content section {
  padding-bottom: 52px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 52px;
}
.guide-content section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.guide-content h2 {
  font-family: 'Spectral', serif;
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  color: var(--text);
}
.guide-content h3 {
  font-family: 'Spectral', serif;
  font-weight: 500;
  font-size: 17px;
  margin-top: 32px;
  margin-bottom: 10px;
  color: var(--text);
}

.guide-content p {
  margin-bottom: 14px;
  color: var(--text-muted);
  line-height: 1.72;
  font-size: 14.5px;
}
.guide-content p:last-child {
  margin-bottom: 0;
}

.guide-content ul,
.guide-content ol {
  margin: 0 0 14px 20px;
  color: var(--text-muted);
  line-height: 1.72;
  font-size: 14.5px;
}
.guide-content li {
  margin-bottom: 5px;
}
.guide-content li:last-child {
  margin-bottom: 0;
}

.guide-content strong {
  color: var(--text);
  font-weight: 500;
}

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: var(--surface);
  padding: 1px 5px;
  color: var(--text);
}

/* Callout boxes */
.note {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  padding: 13px 16px;
  margin: 18px 0;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.65;
}
.note strong {
  color: var(--text);
  font-weight: 500;
}

.warn {
  background: #fdf5e6;
  border-left: 3px solid var(--amber);
  padding: 13px 16px;
  margin: 18px 0;
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.65;
}
.warn strong {
  color: var(--text);
  font-weight: 500;
}

/* Data tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 13.5px;
}
.data-table th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-strong);
}
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  vertical-align: top;
  line-height: 1.55;
}
.data-table tr:last-child td {
  border-bottom: none;
}
.data-table td:first-child {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
}

/* -------------------------------------------------------
   404
   ------------------------------------------------------- */

.not-found {
  padding: 120px 0 80px;
  text-align: center;
}
.not-found .four-oh-four {
  font-family: 'JetBrains Mono', monospace;
  font-size: 72px;
  font-weight: 500;
  color: var(--surface2);
  line-height: 1;
  margin-bottom: 24px;
}
.not-found p {
  font-size: 17px;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* -------------------------------------------------------
   Footer
   ------------------------------------------------------- */

footer {
  padding: 32px 0 48px;
}
.footer-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

/* -------------------------------------------------------
   Responsive
   ------------------------------------------------------- */

@media (max-width: 720px) {
  .guide-layout {
    grid-template-columns: 1fr;
  }
  .guide-toc {
    display: none;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .hero-wordmark svg {
    height: 44px;
  }
  .pitch-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .pitch-headline {
    font-size: 26px;
  }
  .feature-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .security-grid {
    grid-template-columns: 1fr;
  }
  .page-header h1 {
    font-size: 30px;
  }
  .nav-links {
    gap: 18px;
  }
  .lede {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 20px;
  }
}