/* ══════════════════════════════════════
   Code-First Agents — TRON Design System
   Lora + Bricolage Grotesque + JetBrains Mono
   ══════════════════════════════════════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --void: #0a0a0f;
  --void-deep: #06060c;
  --cyan: #b44aff;
  --violet: #8b5cf6;
  --soft-violet: #c084fc;
  --neon-pink: #ff3d8a;
  --text: #c8d6e5;
  --muted: #4a5568;
  --sidebar-w: 200px;
  --glow: 0 0 8px rgba(180, 74, 255, 0.3);
  --glow-strong: 0 0 16px rgba(180, 74, 255, 0.5), 0 0 4px rgba(180, 74, 255, 0.8);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Lora', Georgia, serif;
  font-size: 18px;
  line-height: 1.7;
  color: var(--text);
  background: var(--void);
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(180, 74, 255, 0.04) 39px, rgba(180, 74, 255, 0.04) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(180, 74, 255, 0.04) 39px, rgba(180, 74, 255, 0.04) 40px);
  background-size: 40px 40px;
  min-height: 100vh;
}

/* ══════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════ */
@keyframes pulse-line {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

@keyframes glow-shift {
  0%, 100% {
    border-color: var(--cyan);
    box-shadow: 0 0 12px rgba(180, 74, 255, 0.4), inset 0 0 12px rgba(180, 74, 255, 0.05);
  }
  50% {
    border-color: var(--violet);
    box-shadow: 0 0 12px rgba(139, 92, 246, 0.4), inset 0 0 12px rgba(139, 92, 246, 0.05);
  }
}

/* ══════════════════════════════════════
   SIDEBAR
   ══════════════════════════════════════ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--void-deep);
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 40px 24px 32px;
  overflow-y: auto;
  border-right: 1px solid rgba(180, 74, 255, 0.12);
}

/* Vertical glowing line on right edge */
.sidebar::after {
  content: '';
  position: absolute;
  top: 0;
  right: -1px;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, var(--cyan) 20%, var(--violet) 50%, var(--cyan) 80%, transparent 100%);
  box-shadow: 0 0 12px rgba(180, 74, 255, 0.5), 0 0 24px rgba(180, 74, 255, 0.2);
}

.sidebar__title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 800;
  font-size: 14px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 48px;
  line-height: 1.3;
  text-shadow: 0 0 10px rgba(180, 74, 255, 0.4);
  text-decoration: none;
  display: block;
}

.sidebar__title:hover {
  color: #fff;
  text-shadow: 0 0 14px rgba(180, 74, 255, 0.6);
}

.sidebar__nav { list-style: none; }
.sidebar__nav li { margin-bottom: 20px; }

.sidebar__nav a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.3s, text-shadow 0.3s;
}

.sidebar__nav a:hover {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.5);
}

.sidebar__nav a.active {
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(180, 74, 255, 0.6), 0 0 20px rgba(180, 74, 255, 0.3);
}

/* ══════════════════════════════════════
   MAIN CONTENT
   ══════════════════════════════════════ */
.main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

.content {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 48px 120px;
}

/* ══════════════════════════════════════
   SECTION MARKERS (bleed into sidebar)
   ══════════════════════════════════════ */
.section {
  position: relative;
  margin-bottom: 80px;
}

.section__marker {
  position: absolute;
  left: calc(-48px - 60px);
  top: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  opacity: 0.6;
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.5);
}

/* ══════════════════════════════════════
   HERO
   ══════════════════════════════════════ */
.hero {
  margin-bottom: 60px;
  padding-top: 40px;
}

.hero__label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin-bottom: 24px;
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.4);
}

.hero__title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 800;
  font-size: clamp(48px, 7vw, 72px);
  line-height: 1.05;
  margin-bottom: 8px;
}

.hero__title-dark {
  color: var(--text);
  text-shadow: 0 0 20px rgba(200, 214, 229, 0.15);
}

.hero__title-cyan {
  color: var(--cyan);
  text-shadow: 0 0 30px rgba(180, 74, 255, 0.5), 0 0 60px rgba(180, 74, 255, 0.2);
}

.hero__line {
  width: 120px;
  height: 2px;
  background: var(--cyan);
  margin: 24px 0;
  box-shadow: 0 0 12px rgba(180, 74, 255, 0.6), 0 0 24px rgba(180, 74, 255, 0.3);
  animation: pulse-line 3s ease-in-out infinite;
}

.hero__subtitle {
  font-size: 20px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 580px;
  text-wrap: balance;
}

/* ══════════════════════════════════════
   SECTION TITLE
   ══════════════════════════════════════ */
.section__title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 28px;
  color: var(--text);
  margin-bottom: 32px;
  text-shadow: 0 0 12px rgba(200, 214, 229, 0.08);
}

.section__title::before {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--cyan);
  margin-bottom: 16px;
  box-shadow: var(--glow);
}

/* ══════════════════════════════════════
   SUB-HEADINGS (h3 within sections)
   ══════════════════════════════════════ */
.section h3 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--text);
  margin-bottom: 16px;
  margin-top: 32px;
}

/* ══════════════════════════════════════
   PROSE
   ══════════════════════════════════════ */
.prose p {
  margin-bottom: 24px;
  opacity: 0.85;
}

.prose p:last-child { margin-bottom: 0; }

.prose ol,
.prose ul {
  margin-bottom: 24px;
  padding-left: 1.5em;
}

.prose li {
  margin-bottom: 8px;
  opacity: 0.85;
}

.prose ol li::marker {
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

.prose ul li::marker {
  color: rgba(180, 74, 255, 0.5);
}

/* ══════════════════════════════════════
   LINKS (prose & sections)
   ══════════════════════════════════════ */
.prose a,
.division a,
.section > p a {
  color: var(--soft-violet);
  text-decoration: none;
  transition: color 0.3s, text-shadow 0.3s;
}

.prose a:hover,
.division a:hover,
.section > p a:hover {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.5);
}

/* ══════════════════════════════════════
   EMPHASIS BLOCK (animated border)
   ══════════════════════════════════════ */
.emphasis {
  border: 1.5px solid var(--cyan);
  border-radius: 6px;
  padding: 32px;
  margin: 40px 0;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 600;
  font-size: 22px;
  line-height: 1.5;
  color: var(--text);
  background: rgba(180, 74, 255, 0.03);
  animation: glow-shift 4s ease-in-out infinite;
}

/* ══════════════════════════════════════
   PILLARS
   ══════════════════════════════════════ */
.pillars { margin: 40px 0; }

.pillar {
  display: flex;
  gap: 24px;
  align-items: baseline;
  padding: 24px 0;
  border-bottom: 1px solid rgba(180, 74, 255, 0.08);
}

.pillar:last-child { border-bottom: none; }

.pillar__num {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 800;
  font-size: 32px;
  color: var(--cyan);
  min-width: 52px;
  text-shadow: 0 0 14px rgba(180, 74, 255, 0.5);
}

.pillar__content { flex: 1; }

.pillar__label {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  margin-bottom: 4px;
}

.pillar__text {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.6;
}

/* ══════════════════════════════════════
   HIGHLIGHT TEXT (inline key phrases)
   ══════════════════════════════════════ */
.highlight {
  color: var(--cyan);
  font-weight: 600;
}

/* ══════════════════════════════════════
   CALLOUT (reference notes, external links)
   ══════════════════════════════════════ */
.callout {
  margin-top: 32px;
  padding: 16px 20px;
  border: 1px solid rgba(180, 74, 255, 0.15);
  border-radius: 6px;
  background: rgba(180, 74, 255, 0.04);
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

.callout a {
  color: var(--soft-violet);
}

.callout a:hover {
  color: var(--cyan);
}

/* ══════════════════════════════════════
   SPECTRUM TIMELINE (scroll-activated)
   ══════════════════════════════════════ */
.spectrum {
  position: relative;
  margin: 32px 0 0;
}

/* Vertical line */
.spectrum::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 0;
  bottom: 0;
  width: 1px;
  transform: translateX(-0.5px);
  background: linear-gradient(180deg,
    rgba(180, 74, 255, 0.08),
    rgba(180, 74, 255, 0.2) 20%,
    rgba(180, 74, 255, 0.4) 60%,
    rgba(180, 74, 255, 0.8));
}

.spectrum-step {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 20px;
  align-items: start;
  padding: 0 0 24px;
  min-height: 40vh;
}

/* ── Left: dot column (holds static markers + floating dot) ── */
.spectrum-step__center {
  display: flex;
  justify-content: center;
  padding-top: 6px;
  z-index: 1;
}

/* Static tick marks on the line (small, subtle) */
.spectrum-step__tick {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid rgba(180, 74, 255, 0.2);
  background: var(--void);
  transition: border-color 0.6s;
}

.spectrum-step.is-active .spectrum-step__tick {
  border-color: rgba(180, 74, 255, 0.5);
}

/* Floating dot (single, moves with scroll via JS) */
.spectrum-dot {
  position: absolute;
  left: 0;
  top: 30px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(180, 74, 255, 0.3);
  background: rgba(180, 74, 255, 0.1);
  box-shadow: 0 0 8px rgba(180, 74, 255, 0.2);
  z-index: 2;
  /* No CSS transitions: JS sets values directly per frame */
}

/* ── Right: unified card ── */
.spectrum-step__card {
  padding: 0;
}

.spectrum-step__content {
  border: 1px solid rgba(180, 74, 255, 0.06);
  border-radius: 6px;
  padding: 20px 24px;
  background: rgba(180, 74, 255, 0.015);
  opacity: 0.25;
}

/* Card header: level + title inline */
.spectrum-step__header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}

.spectrum-step__level {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.04em;
  transition: color 0.6s, text-shadow 0.6s;
}

.spectrum-step__title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  transition: color 0.6s;
}

/* Description inside card */
.spectrum-step__desc {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 14px;
  line-height: 1.55;
  transition: color 0.6s;
}

/* JSON block */
.spectrum-step__json {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--soft-violet);
  margin-bottom: 10px;
  padding: 8px 12px;
  background: rgba(6, 6, 12, 0.6);
  border-radius: 4px;
  overflow-x: auto;
  white-space: nowrap;
}

/* Role tag */
.spectrum-step__role {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.spectrum-step__role-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  border-radius: 2px;
  flex-shrink: 0;
}

.spectrum-step__role-tag--tool {
  color: var(--cyan);
  border: 1px solid rgba(180, 74, 255, 0.25);
}

.spectrum-step__role-tag--llm {
  color: var(--neon-pink);
  border: 1px solid rgba(255, 61, 138, 0.25);
}

/* Decision grid (two columns: code vs LLM) */
.decision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.decision-col {
  border: 1px solid rgba(180, 74, 255, 0.1);
  border-radius: 6px;
  padding: 20px;
  background: rgba(180, 74, 255, 0.02);
}

.decision-col__header {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(180, 74, 255, 0.1);
}

.decision-col--code {
  border-color: rgba(180, 74, 255, 0.15);
}

.decision-col--code .decision-col__header {
  color: var(--cyan);
}

.decision-col--code li::marker {
  color: var(--cyan);
}

.decision-col--llm {
  border-color: rgba(255, 61, 138, 0.12);
  background: rgba(255, 61, 138, 0.02);
}

.decision-col--llm .decision-col__header {
  color: var(--neon-pink);
  border-bottom-color: rgba(255, 61, 138, 0.1);
}

.decision-col--llm li::marker {
  color: var(--neon-pink);
}

.decision-col ul {
  padding-left: 1.2em;
  margin: 0;
}

.decision-col li {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
  line-height: 1.5;
}

.decision-col li:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .decision-grid {
    grid-template-columns: 1fr;
  }
}

/* Active states controlled by JS inline styles */


/* ── Mobile ── */
@media (max-width: 768px) {
  .spectrum::before { left: 7px; }
  .spectrum-step {
    grid-template-columns: 16px 1fr;
    gap: 14px;
    min-height: 30vh;
  }
  .spectrum-step__dot { width: 12px; height: 12px; }
  .spectrum-step__content { padding: 16px; }
  .spectrum-step__json { font-size: 11px; }
}

/* ══════════════════════════════════════
   PATTERN CARDS
   ══════════════════════════════════════ */
.cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 32px;
}

a.card, .card {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  border: 1px solid rgba(180, 74, 255, 0.15);
  border-radius: 8px;
  padding: 32px;
  background: rgba(6, 6, 12, 0.7);
  backdrop-filter: blur(4px);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  border-color: var(--cyan);
  box-shadow: var(--glow-strong), inset 0 0 30px rgba(180, 74, 255, 0.02);
}

.card:hover::before,
.card:hover::after { opacity: 1; }

.card__num {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 800;
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.4);
}

.card__title {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  font-size: 22px;
  color: var(--text);
  margin-bottom: 12px;
}

.card__title a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.3s, text-shadow 0.3s;
}

.card__title a:hover {
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(180, 74, 255, 0.4);
}

.card__text {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.card__link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--soft-violet);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.3s, text-shadow 0.3s;
}

.card__link:hover {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.5);
}

/* ══════════════════════════════════════
   CRITERIA LIST
   ══════════════════════════════════════ */
.criteria {
  list-style: none;
  margin-top: 24px;
}

.criteria li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid rgba(180, 74, 255, 0.08);
  font-size: 16px;
}

.criteria li:last-child { border-bottom: none; }

.criteria__input {
  color: var(--text);
  flex: 1;
}

.criteria__arrow {
  color: var(--muted);
  margin: 0 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
}

.criteria__output {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--cyan);
  text-shadow: 0 0 6px rgba(180, 74, 255, 0.3);
  text-align: right;
  white-space: nowrap;
}

.criteria__output--llm {
  color: var(--violet);
  text-shadow: 0 0 6px rgba(139, 92, 246, 0.3);
}

/* ══════════════════════════════════════
   CODE BLOCK
   ══════════════════════════════════════ */
.code-block {
  background: var(--void-deep);
  border: 1px solid rgba(180, 74, 255, 0.15);
  border-radius: 8px;
  padding: 28px 32px;
  margin: 32px 0;
  overflow-x: auto;
  box-shadow: var(--glow), inset 0 0 40px rgba(0, 0, 0, 0.5);
}

.code-block code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  white-space: pre;
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
}

.code-block .kw { color: var(--cyan); }
.code-block .str { color: var(--soft-violet); }
.code-block .num { color: #f59e0b; }
.code-block .comment { color: var(--muted); font-style: italic; }
.code-block .type { color: var(--violet); }
.code-block .fn { color: #34d399; }
.code-block .prop { color: #e2e8f0; }

/* ══════════════════════════════════════
   INLINE CODE
   ══════════════════════════════════════ */
code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  background: rgba(180, 74, 255, 0.1);
  color: var(--cyan);
  padding: 0.15em 0.45em;
  border-radius: 3px;
  border: 1px solid rgba(180, 74, 255, 0.2);
}

/* ══════════════════════════════════════
   TABLES
   ══════════════════════════════════════ */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 15px;
}

th, td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(180, 74, 255, 0.1);
}

th {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan);
  border-bottom: 2px solid rgba(180, 74, 255, 0.2);
}

td {
  color: var(--text);
  opacity: 0.85;
}

td:first-child {
  width: 2rem;
  text-align: center;
  font-size: 1rem;
}

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

/* ══════════════════════════════════════
   LISTS (ol & ul within sections)
   ══════════════════════════════════════ */
.section ol,
.section ul:not(.criteria) {
  margin: 16px 0 24px;
  padding-left: 1.5em;
  color: var(--text);
  opacity: 0.85;
}

.section ol li,
.section ul:not(.criteria) li {
  margin-bottom: 8px;
  line-height: 1.65;
}

.section ol { list-style-type: decimal; }
.section ul:not(.criteria) { list-style-type: disc; }

.section ol li::marker {
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

.section ul:not(.criteria) li::marker {
  color: rgba(180, 74, 255, 0.5);
}

/* ══════════════════════════════════════
   DIAGRAM (SVG containers)
   ══════════════════════════════════════ */
.diagram {
  margin: 2rem 0;
  display: flex;
  justify-content: center;
}

.diagram svg {
  width: 100%;
  max-width: 620px;
  height: auto;
}

/* ══════════════════════════════════════
   STRONG / EM
   ══════════════════════════════════════ */
strong {
  color: var(--text);
  font-weight: 600;
}

em {
  font-style: italic;
}

/* ══════════════════════════════════════
   CLOSING & FOOTER
   ══════════════════════════════════════ */
.closing {
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid rgba(180, 74, 255, 0.1);
}

.closing__text {
  font-size: 20px;
  font-style: italic;
  line-height: 1.6;
  max-width: 520px;
  opacity: 0.85;
  margin-bottom: 16px;
}

.closing__text a {
  color: var(--soft-violet);
  text-decoration: underline;
  text-decoration-color: rgba(192, 132, 252, 0.4);
  text-underline-offset: 3px;
  transition: color 0.2s, text-shadow 0.2s;
}

.closing__text a:hover {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.4);
  text-decoration-color: var(--cyan);
}

.footer {
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid rgba(180, 74, 255, 0.08);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer a {
  color: var(--soft-violet);
  text-decoration: none;
  transition: color 0.3s, text-shadow 0.3s;
}

.footer a:hover {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(180, 74, 255, 0.5);
}

/* ══════════════════════════════════════
   FLOW DIAGRAMS (HTML+CSS only)
   ══════════════════════════════════════ */
.flow-diagram {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 2rem 0;
  flex-wrap: nowrap;
  justify-content: center;
  padding: 16px 0;
}

.flow-node {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 8px 12px;
  border-radius: 6px;
  text-align: center;
  white-space: nowrap;
}

.flow-node--tool {
  border: 1px solid #b44aff;
  background: rgba(180, 74, 255, 0.08);
  box-shadow: 0 0 8px rgba(180, 74, 255, 0.3);
  color: #b44aff;
}

.flow-node--llm {
  border: 1px solid #ff3d8a;
  background: rgba(255, 61, 138, 0.08);
  box-shadow: 0 0 8px rgba(255, 61, 138, 0.3);
  color: #c8d6e5;
}

.flow-node--output {
  border: 1px dashed #b44aff;
  background: rgba(10, 10, 15, 0.5);
  color: #c8d6e5;
}

.flow-node--neutral {
  border: 1px solid #4a5568;
  background: rgba(10, 10, 15, 0.5);
  color: #c8d6e5;
}

.flow-node--sm {
  font-size: 11px;
  padding: 6px 12px;
}

.flow-label {
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
  color: #4a5568;
}

.flow-node--tool .flow-label { color: #4a5568; }
.flow-node--llm .flow-label { color: #ff3d8a; }

.flow-arrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: #b44aff;
  padding: 0 5px;
  white-space: nowrap;
  user-select: none;
}

.flow-arrow--pink {
  color: #ff3d8a;
}

.flow-branch {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.flow-branch__row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.flow-route {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: #4a5568;
  min-width: 68px;
  text-align: right;
}

.flow-arrow-sm {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: #b44aff;
  user-select: none;
}

.flow-annotation {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: #b44aff;
  text-align: center;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed rgba(180, 74, 255, 0.3);
}

.flow-annotation--pink {
  color: #ff3d8a;
  border-top-color: rgba(255, 61, 138, 0.3);
}

.flow-annotation--split {
  display: flex;
  justify-content: center;
  gap: 48px;
  border-top: none;
  padding-top: 0;
}

.flow-annotation--split span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding-top: 10px;
  border-top: 1px dashed rgba(180, 74, 255, 0.3);
}

.flow-annotation--split span:last-child {
  color: #ff3d8a;
  border-top-color: rgba(255, 61, 138, 0.3);
}

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media (max-width: 768px) {
  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    flex-direction: row;
    align-items: center;
    padding: 16px 20px;
    gap: 24px;
    border-right: none;
    border-bottom: 1px solid rgba(180, 74, 255, 0.15);
  }

  .sidebar::after {
    width: 100%;
    height: 2px;
    top: auto;
    bottom: -1px;
    right: auto;
    left: 0;
    background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), var(--cyan), transparent);
  }

  .sidebar__title {
    margin-bottom: 0;
    font-size: 12px;
    white-space: nowrap;
  }

  .sidebar__nav {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }

  .sidebar__nav li { margin-bottom: 0; }

  .main { margin-left: 0; }
  .content { padding: 40px 20px 80px; }
  .section__marker { display: none; }
  .hero__title { font-size: 40px; }
  .emphasis { padding: 24px; font-size: 19px; }
  .card { padding: 24px; }

  .criteria li {
    flex-wrap: wrap;
    gap: 4px;
  }

  .criteria__arrow { margin: 0 8px; }
  .criteria__output { text-align: left; }

  .footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .diagram svg {
    max-width: 100%;
  }

  .code-block {
    padding: 20px 16px;
  }

  .code-block code {
    font-size: 12px;
  }

  table {
    font-size: 14px;
  }

  th, td {
    padding: 8px 12px;
  }
}