/* =========================================================
   ATLANTIS — Service Manual Design System
   Brand colors: #C22032, #FFFFFF, #000000
   Typography: Inter Black / Inter Light, MAJUSCULES for titles
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@200;300;400;500;700;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --red: #C22032;
  --red-dark: #8C1724;
  --red-soft: #F4E0E2;
  --black: #000000;
  --ink: #0A0A0A;
  --ink-2: #1C1C1C;
  --line: #E5E5E5;
  --line-strong: #111111;
  --muted: #6B6B6B;
  --paper: #FFFFFF;
  --paper-warm: #FAFAF8;
  --bg: #EFEEEC;

  --warning-amber: #E89B00;
  --warning-bg: #FFF6E1;
  --info-blue: #1F4FA8;
  --info-bg: #E6EDF9;

  --font-display: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* A4 at 96dpi: 794 x 1123 px */
  --page-w: 794px;
  --page-h: 1123px;
  --page-pad: 56px;
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 14px;
  line-height: 1.55;
}

/* ---------- App shell ---------- */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ink);
  color: #fff;
  border-bottom: 1px solid #000;
}

.topbar-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-mark {
  width: 28px;
  height: 28px;
  background: var(--red);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0;
}

.brand-divider {
  width: 1px;
  height: 18px;
  background: #333;
}

.brand-sub {
  font-weight: 200;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: #999;
}

.tabs {
  display: flex;
  gap: 2px;
  margin-left: auto;
}

.tab {
  background: transparent;
  border: 0;
  color: #999;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 10px 18px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}

.tab:hover { color: #fff; }
.tab.active {
  color: #fff;
  border-bottom-color: var(--red);
}

.meta-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #888;
  letter-spacing: 0.08em;
}

/* ---------- View container ---------- */
.view {
  flex: 1;
  padding: 36px 28px 80px;
  max-width: 1480px;
  width: 100%;
  margin: 0 auto;
}

.view-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 24px;
}

.view-title {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0;
}

.view-subtitle {
  font-weight: 300;
  font-size: 13px;
  color: var(--muted);
  margin-top: 6px;
  max-width: 560px;
}

/* ---------- A4 Page ---------- */
.page-stage {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.page-list {
  width: 200px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: sticky;
  top: 80px;
}

.page-list-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
  padding-left: 4px;
}

.page-thumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-display);
  transition: all 0.12s ease;
  color: var(--ink);
}

.page-thumb:hover {
  background: #fff;
  border-color: var(--line);
}

.page-thumb.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.page-thumb-num {
  font-family: var(--font-mono);
  font-size: 10px;
  width: 22px;
  letter-spacing: 0.04em;
}

.page-thumb-name {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.page-frame {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.page-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  width: var(--page-w);
}

.page-counter {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.page-progress {
  flex: 1;
  height: 2px;
  background: #d8d6d2;
  position: relative;
}

.page-progress-bar {
  position: absolute;
  inset: 0;
  background: var(--red);
  transform-origin: left center;
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.nav-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--ink);
  background: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
  transition: all 0.12s ease;
}

.nav-btn:hover:not(:disabled) {
  background: var(--ink);
  color: #fff;
}

.nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* The actual A4 page */
.a4 {
  width: var(--page-w);
  height: var(--page-h);
  background: var(--paper);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05), 0 24px 48px -16px rgba(0,0,0,0.18);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.a4-inner {
  flex: 1;
  padding: var(--page-pad);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Header band on every page */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.page-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-mark {
  width: 22px;
  height: 22px;
  background: var(--red);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 11px;
}

.header-title {
  font-weight: 900;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.header-meta {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-align: right;
  text-transform: uppercase;
}

/* Footer */
.page-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-num {
  font-weight: 700;
  color: var(--ink);
}

/* ---------- Cover page ---------- */
.cover {
  position: absolute;
  inset: 0;
  background: var(--ink);
  color: #fff;
  padding: var(--page-pad);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cover-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.cover-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.cover-mark {
  width: 44px;
  height: 44px;
  background: var(--red);
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 22px;
}

.cover-brand-text {
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.cover-brand-sub {
  font-weight: 200;
  font-size: 10px;
  letter-spacing: 0.28em;
  color: #999;
  margin-top: 4px;
}

.cover-title {
  font-weight: 900;
  font-size: 84px;
  line-height: 0.92;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-top: -40px;
}

.cover-title .accent { color: var(--red); }

.cover-sub {
  font-weight: 200;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  margin-top: 28px;
  max-width: 480px;
  color: #d4d4d4;
}

.cover-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid #333;
}

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

.cover-meta-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #888;
}

.cover-meta-value {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Diagonal accent on cover */
.cover-stripe {
  position: absolute;
  right: -100px;
  top: 200px;
  width: 360px;
  height: 360px;
  background: var(--red);
  transform: rotate(45deg);
  opacity: 0.95;
}

.cover-stripe-2 {
  position: absolute;
  right: -50px;
  top: 280px;
  width: 200px;
  height: 200px;
  border: 1px solid var(--red);
  transform: rotate(45deg);
}

/* ---------- Content typography ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 500;
}

.h1 {
  font-weight: 900;
  font-size: 44px;
  line-height: 0.96;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 8px 0 0;
}

.h2 {
  font-weight: 900;
  font-size: 22px;
  line-height: 1.05;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 16px;
}

.h3 {
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 10px;
}

.lede {
  font-weight: 200;
  font-size: 16px;
  line-height: 1.45;
  color: var(--ink-2);
}

.body {
  font-weight: 300;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-2);
}

.body strong {
  font-weight: 700;
  color: var(--ink);
}

.tiny {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ---------- Boxes / panels ---------- */
.box {
  border: 1px solid var(--line);
  padding: 16px 18px;
}

.box-dark {
  background: var(--ink);
  color: #fff;
  padding: 18px;
}

.box-dark .h3 { color: #fff; }
.box-dark .body { color: #d4d4d4; }

/* Safety callouts */
.callout {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-left: 4px solid;
  align-items: flex-start;
}

.callout-icon {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 13px;
  font-family: var(--font-display);
  margin-top: 1px;
}

.callout-label {
  font-weight: 900;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.callout-text {
  font-weight: 300;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--ink-2);
}

.callout.danger {
  border-left-color: var(--red);
  background: var(--red-soft);
}
.callout.danger .callout-icon { background: var(--red); color: #fff; }
.callout.danger .callout-label { color: var(--red-dark); }

.callout.warn {
  border-left-color: var(--warning-amber);
  background: var(--warning-bg);
}
.callout.warn .callout-icon { background: var(--warning-amber); color: #fff; }
.callout.warn .callout-label { color: #8a5d00; }

.callout.info {
  border-left-color: var(--info-blue);
  background: var(--info-bg);
}
.callout.info .callout-icon { background: var(--info-blue); color: #fff; }
.callout.info .callout-label { color: var(--info-blue); }

/* ---------- Step layout ---------- */
.step-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.step-num {
  width: 56px;
  height: 56px;
  background: var(--red);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 28px;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.step-of {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.step-title {
  font-weight: 900;
  font-size: 28px;
  line-height: 1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.step-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  flex: 1;
}

.step-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Diagram placeholder */
.diagram {
  width: 100%;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.diagram-stripes {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0,
    transparent 14px,
    rgba(0,0,0,0.03) 14px,
    rgba(0,0,0,0.03) 15px
  );
  pointer-events: none;
}

.diagram-label {
  position: absolute;
  top: 10px;
  left: 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--paper-warm);
  padding: 2px 6px;
}

.diagram-id {
  position: absolute;
  top: 10px;
  right: 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* Measurement callout (big number) */
.measure {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  background: var(--ink);
  color: #fff;
}

.measure-value {
  font-weight: 900;
  font-size: 36px;
  letter-spacing: -0.02em;
  line-height: 1;
}

.measure-unit {
  font-weight: 200;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #d4d4d4;
}

.measure-label {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #999;
  text-align: right;
  max-width: 140px;
}

/* Numbered substep list */
.substeps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  counter-reset: sub;
}

.substeps li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-2);
  counter-increment: sub;
  align-items: flex-start;
}

.substeps li::before {
  content: counter(sub, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--red);
  border-bottom: 1px solid var(--red);
  width: 22px;
  text-align: center;
  padding-bottom: 2px;
  letter-spacing: 0.04em;
}

/* QR code block */
.qr-block {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  padding: 10px;
  border: 1px solid var(--line-strong);
  align-items: center;
}

.qr {
  width: 64px;
  height: 64px;
  background: #fff;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 1px;
  padding: 2px;
  border: 1px solid var(--ink);
}

.qr div {
  background: var(--ink);
}

.qr div.off {
  background: #fff;
}

.qr-text {
  font-size: 10px;
  line-height: 1.4;
}

.qr-text strong {
  font-weight: 900;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 2px;
}

/* Tools grid (page 2) */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.tool-card {
  background: #fff;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 110px;
}

.tool-icon {
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--ink);
}

.tool-name {
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tool-spec {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* Anatomy diagram (page 3) */
.anatomy {
  position: relative;
  flex: 1;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  overflow: hidden;
}

.anatomy-callouts {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.anatomy-callout {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  font-size: 11px;
}

.anatomy-callout-num {
  width: 24px;
  height: 24px;
  background: var(--ink);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 11px;
  font-family: var(--font-mono);
}

.anatomy-callout-text strong {
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 10px;
  display: block;
}

.anatomy-callout-text span {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

/* Checklist (final page) */
.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-list li {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  align-items: center;
  font-size: 12px;
}

.check-box {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--ink);
  display: block;
}

.check-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* TOC */
.toc {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 8px;
}

.toc-item {
  display: grid;
  grid-template-columns: 30px 1fr auto;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}

.toc-num {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--red);
  letter-spacing: 0.04em;
}

.toc-title {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.toc-sub {
  font-weight: 300;
  font-size: 10.5px;
  color: var(--muted);
  margin-top: 2px;
}

.toc-page {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  font-weight: 500;
}

/* ---------- Reasoning / context view ---------- */
.reasoning {
  max-width: 880px;
  margin: 0 auto;
  background: #fff;
  padding: 56px 64px;
  border: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-2);
  font-weight: 300;
}

.reasoning h2 {
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 32px 0 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.reasoning h2:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }

.reasoning h3 {
  font-weight: 900;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 22px 0 8px;
  color: var(--red);
}

.reasoning p { margin: 0 0 12px; }

.reasoning ul {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}

.reasoning ul li {
  padding: 8px 0 8px 24px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.reasoning ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 16px;
  width: 12px;
  height: 1px;
  background: var(--red);
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 16px 0 24px;
}

.compare-col {
  border: 1px solid var(--line);
  padding: 16px;
}

.compare-col.bad { border-color: #d8d8d8; background: #fafafa; }
.compare-col.good { border-color: var(--ink); background: #fff; }

.compare-col h4 {
  font-weight: 900;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 10px;
}

.compare-col.bad h4 { color: #888; }
.compare-col.good h4 { color: var(--red); }

.compare-col p {
  font-size: 12px;
  line-height: 1.55;
  margin: 0;
}

/* ---------- Storyboard view ---------- */
.story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.story-card {
  background: #fff;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}

.story-frame {
  aspect-ratio: 16 / 9;
  background: var(--ink);
  position: relative;
  overflow: hidden;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.story-frame.light {
  background: var(--paper-warm);
  color: var(--ink);
}

.story-frame.red {
  background: var(--red);
  color: #fff;
}

.story-frame-stripes {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0,
    transparent 16px,
    rgba(255,255,255,0.04) 16px,
    rgba(255,255,255,0.04) 17px
  );
}

.story-frame.light .story-frame-stripes {
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0,
    transparent 16px,
    rgba(0,0,0,0.03) 16px,
    rgba(0,0,0,0.03) 17px
  );
}

.story-frame-content {
  position: relative;
  text-align: center;
  padding: 16px;
}

.story-frame-kicker {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.6;
  margin-bottom: 6px;
}

.story-frame-title {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1;
}

.story-frame-tc {
  position: absolute;
  bottom: 8px;
  left: 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.7);
}

.story-frame.light .story-frame-tc { color: var(--muted); }

.story-frame-shot {
  position: absolute;
  top: 8px;
  right: 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  font-weight: 500;
  background: rgba(0,0,0,0.5);
  color: #fff;
  padding: 2px 6px;
}

.story-frame.light .story-frame-shot {
  background: var(--ink);
}

.story-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.story-body-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}

.story-body-num {
  font-weight: 900;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.story-body-dur {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
}

.story-body-action {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.35;
}

.story-vo {
  border-top: 1px dashed var(--line);
  padding-top: 8px;
  margin-top: 4px;
}

.story-vo-label {
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 3px;
}

.story-vo-text {
  font-size: 11px;
  line-height: 1.45;
  color: var(--ink-2);
  font-style: italic;
}

.story-onscreen {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.story-onscreen-dot {
  width: 6px;
  height: 6px;
  background: var(--red);
  border-radius: 50%;
}

/* Video timeline summary */
.timeline {
  background: #fff;
  border: 1px solid var(--line);
  padding: 18px 20px;
  margin-bottom: 24px;
}

.timeline-meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.timeline-meta-item {
  display: flex;
  flex-direction: column;
}

.timeline-meta-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}

.timeline-meta-value {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
}

.timeline-bar {
  height: 22px;
  display: grid;
  grid-template-columns: 8fr 14fr 22fr 18fr 18fr 14fr 6fr;
  gap: 1px;
  border: 1px solid var(--ink);
}

.timeline-seg {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  font-weight: 500;
  overflow: hidden;
  white-space: nowrap;
}

.timeline-seg.s1 { background: var(--ink); }
.timeline-seg.s2 { background: #333; }
.timeline-seg.s3 { background: var(--red); }
.timeline-seg.s4 { background: #4a4a4a; }
.timeline-seg.s5 { background: var(--red-dark); }
.timeline-seg.s6 { background: #2c2c2c; }
.timeline-seg.s7 { background: var(--ink); }

/* ---------- Sketch / SVG graphics ---------- */
.svg-fill { fill: var(--ink); }
.svg-red { fill: var(--red); }
.svg-stroke { stroke: var(--ink); fill: none; }

/* ---------- Print ---------- */
@media print {
  @page {
    size: A4;
    margin: 0;
  }
  body { background: #fff; }
  .topbar, .page-list, .page-controls, .view-header { display: none !important; }
  .a4 { box-shadow: none; page-break-after: always; }
}

/* =========================================================
   PLATFORM-LEVEL STYLES — catalog, machine page, procedure header,
   symptom search, breadcrumbs. Extends the prototype DS. Read above
   for the prototype's variables, typography, and primitives.
   ========================================================= */

/* ---------- Topbar additions ---------- */
.topbar-inner a.brand,
.topbar-inner a.brand:visited {
  color: #fff;
  text-decoration: none;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: #888;
  text-transform: uppercase;
}

.topbar-meta-sep {
  display: inline-block;
  width: 4px;
  height: 4px;
  background: #555;
  border-radius: 50%;
}

.tabs a.tab,
.tabs a.tab:visited {
  color: #999;
  text-decoration: none;
}
.tabs a.tab:hover { color: #fff; }
.tabs a.tab.active {
  color: #fff;
  border-bottom-color: var(--red);
}

/* ---------- View shell ---------- */
.view.view-platform {
  padding: 36px 28px 80px;
  max-width: 1480px;
  width: 100%;
  margin: 0 auto;
  flex: 1;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}

.breadcrumb a, .breadcrumb a:visited {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.breadcrumb a:hover {
  color: var(--ink);
  border-bottom-color: var(--red);
}

.breadcrumb-sep {
  color: var(--line-strong);
  opacity: 0.4;
}

.breadcrumb-current {
  color: var(--ink);
  font-weight: 500;
}

/* ---------- Catalog: Hero ---------- */
.catalog { display: flex; flex-direction: column; gap: 36px; }

.hero {
  background: var(--ink);
  color: #fff;
  padding: 56px 56px 48px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  right: -120px;
  top: -120px;
  width: 460px;
  height: 460px;
  background: var(--red);
  transform: rotate(45deg);
  opacity: 0.95;
  pointer-events: none;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 24px;
  position: relative;
  z-index: 2;
}

.hero-title {
  position: relative;
  z-index: 2;
  font-weight: 900;
  font-size: 64px;
  line-height: 0.96;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin: 0 0 24px;
  max-width: 880px;
}

.hero-accent { color: var(--red); }

.hero-sub {
  position: relative;
  z-index: 2;
  font-weight: 200;
  font-size: 18px;
  line-height: 1.5;
  color: #d4d4d4;
  max-width: 640px;
  margin: 0 0 32px;
}

.hero-actions {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn-primary,
.btn-primary:visited {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--red);
  color: #fff;
  padding: 14px 22px;
  border: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.12s ease;
}

.btn-primary:hover { background: var(--red-dark); }

.btn-arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: #fff;
  padding: 14px 22px;
  border: 1px solid #333;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.12s ease;
}

.btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.catalog-footer .btn-ghost,
.symptom-detail .btn-ghost {
  color: var(--ink);
  border-color: var(--ink);
}

.catalog-footer .btn-ghost:hover,
.symptom-detail .btn-ghost:hover {
  background: var(--ink);
  color: #fff;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, max-content);
  gap: 56px;
  padding-top: 28px;
  border-top: 1px solid #2a2a2a;
}

.hero-stats > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-weight: 900;
  font-size: 36px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #fff;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #888;
}

/* ---------- Catalog: search + filters ---------- */
.catalog-search {
  background: #fff;
  border: 1px solid var(--line);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.catalog-search-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--ink);
  padding: 0 14px;
  height: 52px;
}

.search-icon {
  display: grid;
  place-items: center;
  color: var(--ink);
}

.search-input {
  border: 0;
  outline: 0;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--ink);
  background: transparent;
  width: 100%;
  height: 100%;
}

.search-input::placeholder {
  color: var(--muted);
}

.search-clear {
  background: var(--bg);
  border: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 6px 10px;
  cursor: pointer;
}

.search-clear:hover { background: var(--ink); color: #fff; }

.filter-row {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.filter-group {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.filter-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 100px;
  padding-top: 6px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  background: transparent;
  border: 1px solid var(--line);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.12s ease;
}

.chip:hover { border-color: var(--ink); }

.chip.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.catalog-summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.summary-count {
  font-weight: 700;
  color: var(--ink);
  font-size: 13px;
}

.summary-clear {
  background: transparent;
  border: 0;
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.show-all-toggle {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.12s ease;
}

.show-all-toggle:hover { background: var(--ink); color: #fff; }

.show-all-toggle.on {
  background: var(--ink);
  color: #fff;
}

/* ---------- Catalog: machine grid ---------- */
.machine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 10px;
}

.machine-card,
.machine-card:visited {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: all 0.15s ease;
  overflow: hidden;
}

.machine-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -16px rgba(0,0,0,0.18);
}

/* Real-image hero panel on the card.
   Fixed-height container with object-fit: contain so images NEVER overflow
   their zone, regardless of source aspect ratio. */
.machine-card-image {
  position: relative;
  width: 100%;
  height: 160px;            /* fixed — predictable card rhythm */
  background: #fff;
  border-bottom: 1px solid var(--line);
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 12px;            /* breathing room around the product shot */
  box-sizing: border-box;
}

.machine-card-image img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: transform 0.25s ease;
}

.machine-card:hover .machine-card-image img {
  transform: scale(1.03);
}

.machine-card-image-placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  background: var(--paper-warm);
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0,
    transparent 14px,
    rgba(0,0,0,0.025) 14px,
    rgba(0,0,0,0.025) 15px
  );
}

.machine-card-image-placeholder svg {
  width: 64px;
  height: 64px;
  opacity: 0.45;
}

.machine-card-sku-overlay {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  font-weight: 700;
}

.machine-card-body {
  padding: 14px 18px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.machine-card-cat {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 500;
  margin-bottom: 4px;
}

.machine-card-line {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 4px;
}

.machine-card-name {
  font-weight: 900;
  font-size: 14.5px;
  letter-spacing: 0.01em;
  line-height: 1.15;
  /* Clamp at 2 lines so cards remain uniform */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 2.3em;
}

.machine-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-top: 1px solid var(--line);
  background: var(--paper-warm);
}

.machine-card-procs {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.machine-card-proc-num {
  font-weight: 900;
  font-size: 16px;
  color: var(--ink);
}

.machine-card-proc-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.machine-card-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}

.machine-card-cta-arrow {
  font-family: var(--font-mono);
  transition: transform 0.15s ease;
}

.machine-card:hover .machine-card-cta-arrow {
  transform: translateX(4px);
  color: var(--red);
}

/* ---------- Catalog: empty + footer ---------- */
.empty-state {
  background: #fff;
  border: 1px solid var(--line);
  padding: 56px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
}

.empty-state.small {
  padding: 32px 24px;
}

.empty-state-icon {
  margin-bottom: 4px;
  color: var(--ink);
}

.empty-state-title {
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.empty-state-text {
  font-size: 13px;
  color: var(--muted);
  max-width: 480px;
  margin-bottom: 12px;
}

.catalog-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 22px 28px;
}

.footer-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 4px;
}

.footer-text {
  font-size: 13px;
  color: var(--ink-2);
  max-width: 580px;
}

/* ---------- Machine page ---------- */
.machine-page {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.machine-not-found {
  background: #fff;
  border: 1px solid var(--line);
  padding: 56px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.machine-hero {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  padding: 32px 36px;
}

.machine-hero-art {
  width: 200px;
  height: 200px;
  background: var(--paper-warm);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
}

.machine-hero-art svg {
  width: 140px;
  height: 140px;
}

.machine-hero-text {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.machine-title {
  font-weight: 900;
  font-size: 36px;
  line-height: 1;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 6px 0 4px;
}

.machine-descriptor {
  font-size: 14px;
  color: var(--ink-2);
  margin: 0;
}

.machine-summary {
  font-weight: 200;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 720px;
  margin: 8px 0 16px;
}

.machine-spec-row {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  margin-top: 4px;
}

.spec-pair {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.spec-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.spec-value {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.spec-value.cap { text-transform: capitalize; }

.spec-value.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.machine-section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
}

.section-title {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 6px 0 0;
}

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

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.proc-groups {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.proc-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.proc-group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.proc-group-dot {
  width: 8px;
  height: 8px;
}

.proc-group-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.proc-group-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.proc-rows {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.proc-row,
.proc-row:visited {
  display: grid;
  grid-template-columns: 140px 1fr 280px 120px;
  gap: 24px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  padding: 16px 20px;
  text-decoration: none;
  color: var(--ink);
  transition: all 0.12s ease;
}

.proc-row:hover {
  border-color: var(--ink);
  transform: translateX(4px);
}

.proc-row-type {
  display: flex;
  align-items: center;
  gap: 8px;
}

.proc-type-dot {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
}

.proc-type-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.proc-row-title {
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.proc-row-summary {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.45;
}

.proc-row-meta {
  display: flex;
  gap: 24px;
}

.proc-meta-pair {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.proc-meta-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.proc-meta-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.02em;
}

.proc-meta-value.cap { text-transform: capitalize; }

.proc-row-status {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-self: end;
}

.status-pill {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid;
}

.status-pill.published {
  color: #1f6f3a;
  border-color: #1f6f3a;
  background: rgba(31, 111, 58, 0.06);
}

.status-pill.draft {
  color: #8a5d00;
  border-color: var(--warning-amber);
  background: var(--warning-bg);
}

.proc-row-arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  transition: transform 0.15s ease;
}

.proc-row:hover .proc-row-arrow {
  transform: translateX(4px);
  color: var(--red);
}

.machine-tags {
  background: #fff;
  border: 1px solid var(--line);
  padding: 18px 22px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.tag-chip {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  background: var(--paper-warm);
  border: 1px solid var(--line);
  padding: 4px 8px;
}

/* ---------- Procedure page ---------- */
.procedure-page {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.proc-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: flex-end;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.proc-title {
  font-weight: 900;
  font-size: 32px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin: 8px 0 8px;
  line-height: 1;
}

.proc-context {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 12px;
}

.proc-context a, .proc-context a:visited {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.proc-context a:hover {
  border-bottom-color: var(--red);
  color: var(--red);
}

.proc-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.proc-meta-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 9px;
  border: 1px solid var(--line);
  color: var(--ink-2);
  background: #fff;
}

.proc-meta-pill.mono { font-family: var(--font-mono); }
.proc-meta-pill.cap  { text-transform: capitalize; letter-spacing: 0.04em; }

.proc-meta-pill.warn {
  color: #8a5d00;
  border-color: var(--warning-amber);
  background: var(--warning-bg);
}

.proc-header-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}

.proc-pick-machine {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}

.proc-pick-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.proc-pick-select {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.02em;
  background: #fff;
  border: 1px solid var(--ink);
  padding: 8px 10px;
  cursor: pointer;
  min-width: 240px;
}

/* ---------- Symptom page ---------- */
.symptom-list,
.symptom-detail {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.symptom-hero {
  background: #fff;
  border: 1px solid var(--line);
  padding: 32px 36px;
}

.symptom-detail-head {
  background: #fff;
  border: 1px solid var(--line);
  padding: 32px 36px;
}

.symptom-detail-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.symptom-groups {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.symptom-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.symptom-group-header {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}

.symptom-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
}

.symptom-card,
.symptom-card:visited {
  background: #fff;
  border: 1px solid var(--line);
  padding: 16px 18px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all 0.12s ease;
}

.symptom-card:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -16px rgba(0,0,0,0.15);
}

.symptom-card-label {
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.symptom-card-detail {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.45;
  flex: 1;
}

.symptom-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.symptom-card-procs {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.symptom-card-arrow {
  font-family: var(--font-mono);
  color: var(--red);
}

/* ---------- About page ---------- */
.about-page {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.about-hero {
  background: #fff;
  border: 1px solid var(--line);
  padding: 44px 48px;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.about-card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.about-card-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--red);
}

.about-card-title {
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.about-card-text {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
}

.about-section {
  background: #fff;
  border: 1px solid var(--line);
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ---------- Helper / shared ---------- */
.meta-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  margin-top: 12px;
}

.meta-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.meta-table td:first-child {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  width: 200px;
}

.meta-table td:nth-child(2) {
  font-weight: 500;
  color: var(--ink-2);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- Platform footer ---------- */
.platform-footer {
  background: var(--ink);
  color: #fff;
  padding: 24px 0;
  margin-top: auto;
}

.platform-footer-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: var(--muted);
}

.footer-links a, .footer-links a:visited {
  color: #d4d4d4;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.footer-links a:hover {
  color: #fff;
  border-bottom-color: var(--red);
}

.footer-sep { color: #555; }

/* ---------- Responsive tweaks ---------- */
@media (max-width: 1024px) {
  .hero { padding: 40px 32px; }
  .hero-title { font-size: 44px; }
  .machine-hero { grid-template-columns: 140px 1fr; gap: 22px; padding: 22px; }
  .machine-hero-art { width: 140px; height: 140px; }
  .proc-row { grid-template-columns: 120px 1fr 80px; }
  .proc-row-meta { display: none; }
  .page-stage { flex-direction: column; }
  .page-list { width: 100%; position: static; flex-direction: row; flex-wrap: wrap; }
  .page-controls { width: 100%; }
  .a4 { transform: scale(0.7); transform-origin: top center; }
}

@media (max-width: 720px) {
  .topbar-meta { display: none; }
  .hero { padding: 32px 22px; }
  .hero-title { font-size: 32px; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 24px; }
  .machine-hero { grid-template-columns: 1fr; }
  .machine-hero-art { width: 100%; height: 140px; }
  .machine-gallery { width: 100%; }
  .machine-spec-row { gap: 20px; }
  .machine-section-header { flex-direction: column; align-items: flex-start; }
  .legend { gap: 10px; }
  .proc-row { grid-template-columns: 1fr; gap: 10px; padding: 14px 16px; }
  .proc-row-status { justify-self: flex-start; }
  .filter-group { flex-direction: column; gap: 8px; }
  .platform-footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ---------- Live data banner ---------- */
.data-banner {
  background: var(--warning-bg);
  border-bottom: 1px solid var(--warning-amber);
}

.data-banner[data-state="loading"] {
  background: var(--info-bg);
  border-bottom-color: var(--info-blue);
}

.data-banner[data-state="loading"] .data-banner-eyebrow { color: var(--info-blue); }

.data-banner-inner {
  max-width: 1480px;
  margin: 0 auto;
  padding: 10px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.data-banner-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #8a5d00;
  font-weight: 700;
}

.data-banner-text {
  font-size: 12px;
  color: var(--ink-2);
  flex: 1;
}

.data-banner-text code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: rgba(0,0,0,0.06);
  padding: 1px 6px;
  border: 1px solid rgba(0,0,0,0.08);
}

.data-banner-text a {
  color: var(--red-dark);
  font-weight: 700;
}

.data-banner-btn {
  background: transparent;
  border: 1px solid var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 12px;
  cursor: pointer;
}

.data-banner-btn:hover { background: var(--ink); color: #fff; }

/* ---------- Live machine image gallery ----------
   Width matches the .machine-hero grid column (200px) exactly so it never
   overflows. The main panel is square; images are constrained with
   max-width/max-height and object-fit so they fit cleanly inside. */
.machine-gallery {
  width: 200px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.machine-gallery-main {
  width: 200px;
  height: 200px;
  background: #fff;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 12px;
  box-sizing: border-box;
}

.machine-gallery-main img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  background: transparent;
}

.machine-gallery-main video {
  max-width: 100%;
  max-height: 100%;
  background: #000;
}

.machine-gallery-thumbs {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-wrap: wrap;
}

.machine-gallery-thumb {
  width: 28px;
  height: 28px;
  background: #fff;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.machine-gallery-thumb:hover { border-color: var(--ink); }

.machine-gallery-thumb.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.machine-gallery-more {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  padding-left: 4px;
}

/* ---------- Machine extra details (collapsible) ---------- */
.machine-extra {
  background: #fff;
  border: 1px solid var(--line);
  padding: 18px 22px;
}

.machine-extra-summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}

.machine-extra-summary::-webkit-details-marker { display: none; }

.machine-extra-toggle {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink);
  text-transform: uppercase;
  font-weight: 700;
}

.machine-extra[open] .machine-extra-toggle::after { content: ' ▲'; }
.machine-extra:not([open]) .machine-extra-toggle::after { content: ' ▼'; }