/* ============================================
   TorqueLab — Diagnostic Guide Hub
   Vibe: Dark workshop, amber signal light
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Clash+Display:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&family=Satoshi:wght@400;500;600&display=swap');

/* ── Reset & Base ─────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --c-bg:        #08080a;
  --c-surface:   #111113;
  --c-surface-2: #18181b;
  --c-border:    #222226;
  --c-border-2:  #2e2e33;
  --c-text:      #e2e0dc;
  --c-muted:     #6b6a67;
  --c-muted-2:  #4a4947;
  --c-accent:    #f0a500;
  --c-accent-dim:rgba(240,165,0,0.15);
  --c-red:       #e03c31;
  --c-red-dim:   rgba(224,60,49,0.12);
  --c-green:     #3dbd6a;
  --c-amber:     #f59e0b;
  --c-white:      #ffffff;
  --font-head:   'Clash Display', system-ui, sans-serif;
  --font-mono:   'IBM Plex Mono', 'Courier New', monospace;
  --font-body:   'Satoshi', system-ui, sans-serif;
}

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

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Typography ───────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; color: var(--c-white); }
h1 { font-size: clamp(2.6rem, 5.5vw, 4.8rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; font-family: var(--font-body); }
p  { font-size: 0.97rem; color: var(--c-muted); line-height: 1.75; }
a  { color: var(--c-accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.75; }
.mono { font-family: var(--font-mono); }
code { font-family: var(--font-mono); font-size: 0.825rem; }

/* ── Layout Utilities ─────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
}
.section { padding: 96px 0; }
.section--sm { padding: 56px 0; }
.section--lg { padding: 120px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
}

/* ── Navigation ───────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(8, 8, 10, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 1.35rem;
  color: var(--c-white);
  letter-spacing: -0.025em;
  font-weight: 700;
}
.nav__logo-mark {
  width: 30px;
  height: 30px;
  background: var(--c-accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav__logo-mark svg { width: 16px; height: 16px; fill: var(--c-bg); }
.nav__badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--c-accent);
  color: var(--c-bg);
  padding: 3px 9px;
  border-radius: 4px;
}

/* ── Hero ─────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://pub-629428d185ca4960a0a73c850d32294b.r2.dev/generated-images/company_185837/883ee3c5-8fd4-4935-a122-db2e180f5d2c.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.25) saturate(0.6);
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    170deg,
    rgba(8,8,10,0.15) 0%,
    rgba(8,8,10,0.5) 50%,
    rgba(8,8,10,0.97) 100%
  );
}
.hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px;
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 660px;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  margin-bottom: 22px;
}
.hero__eyebrow-dot {
  width: 5px; height: 5px;
  background: var(--c-accent);
  border-radius: 50%;
  animation: pulse 2.2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.25} }
.hero h1 {
  margin-bottom: 22px;
  letter-spacing: -0.03em;
  font-weight: 700;
}
.hero h1 em {
  font-style: normal;
  color: var(--c-accent);
}
.hero__sub {
  font-size: 1.05rem;
  color: #b8b5b0;
  margin-bottom: 40px;
  max-width: 500px;
  line-height: 1.8;
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.hero__meta-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  color: var(--c-muted);
  font-family: var(--font-mono);
}
.hero__meta-item svg { width: 13px; height: 13px; stroke: var(--c-accent); fill: none; stroke-width: 2; stroke-linecap: round; }
.hero__scroll-hint {
  position: absolute;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero__scroll-line {
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, var(--c-accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}
}

/* ── Divider ───────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--c-border);
}
.divider__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  white-space: nowrap;
}

/* ── Section Header ───────────────────────── */
.section-header { margin-bottom: 48px; }
.section-header h2 { margin-bottom: 12px; }
.section-header p { font-size: 1.05rem; max-width: 560px; }

/* ── Badge / Tag ───────────────────────────── */
.tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 16px;
}
.tag--accent { background: rgba(240,165,0,0.12); color: var(--c-accent); border: 1px solid rgba(240,165,0,0.25); }
.tag--red { background: rgba(224,60,49,0.12); color: var(--c-red); border: 1px solid rgba(224,60,49,0.25); }
.tag--green { background: rgba(61,189,106,0.12); color: var(--c-green); border: 1px solid rgba(61,189,106,0.25); }

/* ── Why This Guide ───────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.why-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 28px;
  transition: border-color 0.2s;
}
.why-card:hover { border-color: rgba(240,165,0,0.4); }
.why-card__icon {
  width: 44px; height: 44px;
  background: rgba(240,165,0,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.why-card__icon svg { width: 22px; height: 22px; fill: var(--c-accent); }
.why-card h3 { margin-bottom: 10px; }
.why-card p { font-size: 0.9rem; }

/* ── Fault Code Ticker ─────────────────────── */
.fault-ticker {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 24px 28px;
  margin-bottom: 48px;
  overflow: hidden;
}
.fault-ticker__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-red);
  font-weight: 600;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.fault-ticker__label::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--c-red);
  border-radius: 50%;
  animation: blink 1.5s infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }
.fault-ticker__track {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.fault-ticker__track::-webkit-scrollbar { display: none; }
.fault-code {
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(224,60,49,0.1);
  border: 1px solid rgba(224,60,49,0.2);
  color: var(--c-red);
  padding: 6px 14px;
  border-radius: 5px;
  white-space: nowrap;
}
.fault-code span { color: var(--c-muted); font-weight: 400; font-size: 0.75rem; }

/* ── Diagnostic Categories ─────────────────── */
.diag-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.diag-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.diag-card:hover { border-color: rgba(240,165,0,0.35); }
.diag-card__header {
  padding: 20px 24px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--c-border);
}
.diag-card__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--c-accent);
  background: rgba(240,165,0,0.08);
  border: 1px solid rgba(240,165,0,0.2);
  padding: 3px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}
.diag-card h3 { font-size: 1.05rem; flex: 1; }
.diag-card__count {
  font-size: 0.75rem;
  color: var(--c-muted);
  background: var(--c-bg);
  padding: 2px 10px;
  border-radius: 20px;
  border: 1px solid var(--c-border);
  flex-shrink: 0;
}
.diag-card__body { padding: 16px 24px 20px; }
.diag-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid rgba(37,37,40,0.6);
  font-size: 0.88rem;
  color: #a8a5a0;
}
.diag-item:last-child { border-bottom: none; }
.diag-item__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot--red  { background: var(--c-red); }
.dot--amber{ background: var(--c-accent); }
.dot--green{ background: var(--c-green); }

/* ── What's Inside ──────────────────────────── */
.inside-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.inside-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
}
.inside-item__icon {
  width: 32px; height: 32px;
  border-radius: 6px;
  background: rgba(240,165,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.inside-item__icon svg { width: 16px; height: 16px; fill: var(--c-accent); }
.inside-item h4 { font-size: 0.95rem; margin-bottom: 4px; font-family: var(--font-body); font-weight: 600; }
.inside-item p { font-size: 0.8rem; color: var(--c-muted); }

/* ── Preview Section ───────────────────────── */
.preview-wrap {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  overflow: hidden;
}
.preview-tabs {
  display: flex;
  border-bottom: 1px solid var(--c-border);
  background: rgba(22,22,24,0.5);
}
.preview-tab {
  padding: 12px 20px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--c-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.preview-tab.active {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}
.preview-body { padding: 28px 32px; }
.preview-section-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  font-weight: 600;
  margin-bottom: 6px;
}
.preview-code-block {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 18px 20px;
  margin: 12px 0 20px;
  overflow-x: auto;
}
.preview-code-block code {
  color: #c2bfb8;
  line-height: 1.7;
  white-space: pre;
}
.dtc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 16px 0;
}
.dtc-table th {
  text-align: left;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  padding: 8px 12px;
  border-bottom: 1px solid var(--c-border);
}
.dtc-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(37,37,40,0.6);
  vertical-align: top;
}
.dtc-table td:first-child {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--c-accent);
}
.dtc-table tr:last-child td { border-bottom: none; }
.diag-step {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(37,37,40,0.5);
}
.diag-step:last-child { border-bottom: none; }
.diag-step__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--c-accent);
  background: rgba(240,165,0,0.08);
  border: 1px solid rgba(240,165,0,0.2);
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.diag-step__body {}
.diag-step__title { font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.diag-step__desc { font-size: 0.85rem; color: var(--c-muted); }
.diag-step__note {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--c-accent);
  background: rgba(240,165,0,0.06);
  border-left: 2px solid var(--c-accent);
  padding: 6px 12px;
  border-radius: 0 4px 4px 0;
}

/* ── About / Who It's For ─────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.about-text h2 { margin-bottom: 20px; }
.about-text p { margin-bottom: 14px; font-size: 0.97rem; }
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  overflow: hidden;
}
.stat-box {
  background: var(--c-surface);
  padding: 28px 20px;
  text-align: center;
}
.stat-box__value {
  font-family: var(--font-head);
  font-size: 2.2rem;
  color: var(--c-accent);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-box__label {
  font-size: 0.75rem;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Footer ────────────────────────────────── */
.footer {
  border-top: 1px solid var(--c-border);
  padding: 40px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--c-white);
}
.footer__brand-mark {
  width: 24px; height: 24px;
  background: var(--c-accent);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer__brand-mark svg { width: 14px; height: 14px; fill: var(--c-bg); }
.footer__copy { font-size: 0.8rem; color: var(--c-muted); }
.footer__links {
  display: flex;
  gap: 20px;
  list-style: none;
}
.footer__links a { font-size: 0.8rem; color: var(--c-muted); }
.footer__links a:hover { color: var(--c-text); }

/* ── Divider ───────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--c-border);
}
.divider__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-muted);
  white-space: nowrap;
}
.divider--accent::after { background: linear-gradient(to right, var(--c-accent), transparent); width: 80px; }

/* ── Section Header ───────────────────────── */
.section-header { margin-bottom: 52px; }
.section-header h2 { margin-bottom: 12px; }
.section-header p { font-size: 1rem; max-width: 520px; line-height: 1.8; }

/* ── Tags / Badges ────────────────────────── */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 18px;
}
.tag--accent { background: var(--c-accent-dim); color: var(--c-accent); border: 1px solid rgba(240,165,0,0.2); }
.tag--red   { background: var(--c-red-dim);    color: var(--c-red);   border: 1px solid rgba(224,60,49,0.2);   }
.tag--green { background: rgba(61,189,106,0.1); color: var(--c-green); border: 1px solid rgba(61,189,106,0.2); }

/* ── Guide Hero (guide page only) ────────── */
.guide-hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}
.guide-hero__left {
  position: relative;
  z-index: 2;
  padding: 60px 0;
  padding-right: 60px;
}
.guide-hero__right {
  position: relative;
  height: 100%;
  min-height: 500px;
  overflow: hidden;
}
.guide-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.3) saturate(0.5);
}
.guide-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #08080a 0%, rgba(8,8,10,0.4) 60%, transparent 100%);
}
.guide-hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px;
}
.guide-hero__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  margin-bottom: 28px;
}
.guide-hero__label-dot {
  width: 5px; height: 5px;
  background: var(--c-accent);
  border-radius: 50%;
  animation: pulse 2.2s infinite;
}
.guide-hero h1 {
  font-size: clamp(2.8rem, 4.5vw, 5rem);
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.035em;
  line-height: 1.0;
}
.guide-hero h1 em {
  font-style: normal;
  color: var(--c-accent);
  display: block;
}
.guide-hero__sub {
  font-size: 1rem;
  color: #aaa8a3;
  margin-bottom: 44px;
  max-width: 440px;
  line-height: 1.8;
}
.guide-hero__checklist {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.guide-hero__check {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #a8a6a1;
}
.guide-hero__check-icon {
  width: 18px; height: 18px;
  background: var(--c-accent-dim);
  border: 1px solid rgba(240,165,0,0.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.guide-hero__check-icon svg { width: 10px; height: 10px; stroke: var(--c-accent); fill: none; stroke-width: 2.5; stroke-linecap: round; }
.guide-hero__scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.guide-hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--c-accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
.guide-hero__image-tag {
  position: absolute;
  bottom: 28px;
  right: 28px;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* ── What's Inside (guide showcase) ─────── */
.inside-section {
  position: relative;
}
.inside-section__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 24px;
}
.inside-section__header h2 { flex: 1; }
.inside-section__header-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--c-muted);
  text-align: right;
  flex-shrink: 0;
}
.inside-section__header-meta strong { color: var(--c-accent); display: block; font-size: 1.4rem; font-family: var(--font-head); font-weight: 700; margin-bottom: 2px; }
.inside-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.inside-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  transition: border-color 0.25s, background 0.25s;
}
.inside-item:hover {
  border-color: rgba(240,165,0,0.3);
  background: var(--c-surface-2);
}
.inside-item__icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--c-accent-dim);
  border: 1px solid rgba(240,165,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.inside-item__icon svg { width: 17px; height: 17px; stroke: var(--c-accent); fill: none; stroke-width: 1.75; stroke-linecap: round; }
.inside-item__body {}
.inside-item h4 { font-size: 0.9rem; margin-bottom: 5px; font-family: var(--font-body); font-weight: 600; color: var(--c-text); }
.inside-item p { font-size: 0.78rem; color: var(--c-muted); line-height: 1.65; }
.inside-item__tag {
  margin-top: 10px;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-muted-2);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  padding: 2px 7px;
  border-radius: 3px;
}
.inside-grid--secondary {
  margin-top: 12px;
  grid-template-columns: repeat(2, 1fr);
}

/* ── Guide Mission ────────────────────────── */
.mission-section {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
}
.mission-grid__left {
  padding: 80px 60px 80px 0;
  border-right: 1px solid var(--c-border);
}
.mission-grid__right {
  padding: 80px 0 80px 60px;
}
.mission-grid__right blockquote {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-weight: 500;
  color: var(--c-text);
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.mission-grid__right cite {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-muted);
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.mission-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 36px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: gap 0.2s;
}
.mission-cta:hover { gap: 14px; }
.mission-cta svg { width: 14px; height: 14px; stroke: var(--c-accent); fill: none; stroke-width: 2; stroke-linecap: round; }

/* ── Fault Code Ticker ─────────────────────── */
.fault-ticker {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 22px 26px;
  margin-bottom: 52px;
  overflow: hidden;
}
.fault-ticker__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-red);
  font-weight: 600;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.fault-ticker__label::before {
  content: '';
  width: 5px; height: 5px;
  background: var(--c-red);
  border-radius: 50%;
  animation: blink 1.6s infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.15} }
.fault-ticker__track {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.fault-ticker__track::-webkit-scrollbar { display: none; }
.fault-code {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--c-red-dim);
  border: 1px solid rgba(224,60,49,0.18);
  color: var(--c-red);
  padding: 5px 12px;
  border-radius: 5px;
  white-space: nowrap;
}
.fault-code span { color: var(--c-muted); font-weight: 400; font-size: 0.7rem; }

/* ── Diagnostic Categories ─────────────────── */
.diag-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.diag-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.25s;
}
.diag-card:hover { border-color: rgba(240,165,0,0.35); }
.diag-card__header {
  padding: 18px 22px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--c-border);
}
.diag-card__num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--c-accent);
  background: var(--c-accent-dim);
  border: 1px solid rgba(240,165,0,0.2);
  padding: 3px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}
.diag-card h3 { font-size: 0.95rem; flex: 1; font-family: var(--font-body); font-weight: 600; }
.diag-card__count {
  font-size: 0.7rem;
  color: var(--c-muted);
  background: var(--c-bg);
  padding: 2px 9px;
  border-radius: 20px;
  border: 1px solid var(--c-border);
  flex-shrink: 0;
  font-family: var(--font-mono);
}
.diag-card__body { padding: 14px 22px 18px; }
.diag-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(34,34,38,0.6);
  font-size: 0.84rem;
  color: #a0a09c;
}
.diag-item:last-child { border-bottom: none; }
.diag-item__dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot--red  { background: var(--c-red); }
.dot--amber{ background: var(--c-accent); }
.dot--green{ background: var(--c-green); }

/* ── Preview Section ───────────────────────── */
.preview-wrap {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  overflow: hidden;
}
.preview-tabs {
  display: flex;
  border-bottom: 1px solid var(--c-border);
  background: rgba(17,17,19,0.6);
}
.preview-tab {
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--c-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.preview-tab.active { color: var(--c-accent); border-bottom-color: var(--c-accent); }
.preview-body { padding: 28px 32px; }
.preview-section-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-accent);
  font-weight: 600;
  margin-bottom: 6px;
}
.preview-code-block {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 18px 20px;
  margin: 12px 0 20px;
  overflow-x: auto;
}
.preview-code-block code {
  color: #c2bfb8;
  line-height: 1.75;
  white-space: pre;
  font-size: 0.82rem;
}
.dtc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 16px 0;
}
.dtc-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--c-muted);
  padding: 8px 12px;
  border-bottom: 1px solid var(--c-border);
}
.dtc-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(34,34,38,0.6);
  vertical-align: top;
}
.dtc-table td:first-child {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--c-accent);
}
.dtc-table tr:last-child td { border-bottom: none; }
.diag-step {
  display: flex;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(34,34,38,0.5);
}
.diag-step:last-child { border-bottom: none; }
.diag-step__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--c-accent);
  background: var(--c-accent-dim);
  border: 1px solid rgba(240,165,0,0.2);
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.diag-step__title { font-weight: 600; font-size: 0.93rem; margin-bottom: 5px; }
.diag-step__desc { font-size: 0.84rem; color: var(--c-muted); line-height: 1.7; }
.diag-step__note {
  margin-top: 7px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-accent);
  background: rgba(240,165,0,0.05);
  border-left: 2px solid var(--c-accent);
  padding: 6px 12px;
  border-radius: 0 4px 4px 0;
}

/* ── About / Who It's For ─────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: start;
}
.about-text h2 { margin-bottom: 22px; }
.about-text p { margin-bottom: 15px; font-size: 0.95rem; }
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  overflow: hidden;
}
.stat-box {
  background: var(--c-surface);
  padding: 28px 18px;
  text-align: center;
}
.stat-box__value {
  font-family: var(--font-head);
  font-size: 2rem;
  color: var(--c-accent);
  line-height: 1;
  margin-bottom: 6px;
  font-weight: 700;
}
.stat-box__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ── Footer ────────────────────────────────── */
.footer {
  border-top: 1px solid var(--c-border);
  padding: 44px 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--c-white);
  font-weight: 600;
}
.footer__brand-mark {
  width: 24px; height: 24px;
  background: var(--c-accent);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer__brand-mark svg { width: 13px; height: 13px; stroke: var(--c-bg); fill: none; stroke-width: 2; stroke-linecap: round; }
.footer__copy { font-family: var(--font-mono); font-size: 0.75rem; color: var(--c-muted); }
.footer__links {
  display: flex;
  gap: 20px;
  list-style: none;
}
.footer__links a { font-family: var(--font-mono); font-size: 0.75rem; color: var(--c-muted); }
.footer__links a:hover { color: var(--c-text); }

/* ── Responsive ───────────────────────────── */
@media (max-width: 1024px) {
  .guide-hero { grid-template-columns: 1fr; }
  .guide-hero__right { display: none; }
  .guide-hero__left { padding-right: 0; }
  .mission-grid { grid-template-columns: 1fr; }
  .mission-grid__left { border-right: none; border-bottom: 1px solid var(--c-border); padding: 56px 0; }
  .mission-grid__right { padding: 56px 0 0; }
  .inside-section__header { flex-direction: column; align-items: flex-start; }
  .inside-section__header-meta { text-align: left; }
}
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .stats-row { grid-template-columns: 1fr; }
  .preview-body { padding: 20px 16px; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .inside-grid { grid-template-columns: 1fr; }
  .inside-grid--secondary { grid-template-columns: 1fr; }
}