:root {
  --ds-color-bg-primary: #0e0e0f;
  --ds-color-bg-elevated: #181818;
  --ds-color-fg-primary: #f5f5f2;
  --ds-color-fg-muted: #b8b8ad;
  --ds-color-accent-primary: #d4ff3d;
  --ds-color-accent-on-paper: #53660d;
  --ds-color-accent-warn: #ff6a2e;
  --ds-color-divider: #2b2b2b;
  --ds-color-focus-ring: rgba(212, 255, 61, 0.72);
  --ds-color-paper: #f4f4ee;
  --ds-color-paper-muted: #dadad0;
  --ds-color-ink: #101011;
  --ds-color-ink-muted: #4d4d45;
  --ds-radius-sm: 4px;
  --ds-radius-md: 8px;
  --ds-radius-pill: 999px;
  --ds-spacing-1: 8px;
  --ds-spacing-2: 16px;
  --ds-spacing-3: 24px;
  --ds-spacing-4: 32px;
  --ds-spacing-5: 40px;
  --ds-spacing-6: 48px;
  --ds-page-x: clamp(20px, 5vw, 64px);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--ds-color-bg-primary);
  color: var(--ds-color-fg-primary);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(245, 245, 242, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 245, 242, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 74%);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

img {
  max-width: 100%;
}

::selection {
  background: var(--ds-color-accent-primary);
  color: var(--ds-color-ink);
}

:focus-visible {
  outline: 3px solid var(--ds-color-focus-ring);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: var(--ds-spacing-2);
  top: var(--ds-spacing-2);
  z-index: 100;
  padding: 10px 12px;
  background: var(--ds-color-accent-primary);
  color: var(--ds-color-ink);
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ds-spacing-3);
  min-height: 72px;
  padding: 14px var(--ds-page-x);
  border-bottom: 1px solid var(--ds-color-divider);
  background: rgba(14, 14, 15, 0.94);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--ds-color-fg-primary);
  font-weight: 760;
  text-decoration: none;
}

.brand-mark {
  display: block;
  width: 36px;
  height: 36px;
  flex: none;
}

.brand span:last-child {
  white-space: nowrap;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px 18px;
  min-width: 0;
  max-width: 100%;
  width: 100%;
  color: var(--ds-color-fg-muted);
  font-size: 14px;
  line-height: 20px;
}

.nav a {
  white-space: nowrap;
}

.nav a,
.footer-links a,
.text-link {
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  color: var(--ds-color-fg-primary);
  text-decoration: underline;
  text-decoration-color: var(--ds-color-accent-primary);
}

.hero {
  position: relative;
  display: grid;
  min-height: min(760px, 78svh);
  border-bottom: 1px solid var(--ds-color-divider);
  overflow: hidden;
}

.hero picture,
.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero img {
  object-fit: cover;
  object-position: center right;
  filter: saturate(0.88) contrast(1.08);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(14, 14, 15, 0.98) 0%, rgba(14, 14, 15, 0.88) 42%, rgba(14, 14, 15, 0.36) 78%),
    linear-gradient(0deg, rgba(14, 14, 15, 0.9), rgba(14, 14, 15, 0.08) 48%);
}

.hero-content {
  position: relative;
  z-index: 1;
  align-self: end;
  width: min(900px, 100%);
  padding: clamp(92px, 12vw, 148px) var(--ds-page-x) clamp(64px, 9vw, 96px);
}

.eyebrow,
.meta,
.status-label,
.tile-index {
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  line-height: 16px;
  text-transform: uppercase;
}

.eyebrow,
.meta,
.tile-index {
  color: var(--ds-color-accent-primary);
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Inter Tight", Inter, ui-sans-serif, system-ui, sans-serif;
  letter-spacing: 0;
}

h1 {
  width: 100%;
  max-width: min(820px, 100%);
  margin-top: 16px;
  font-size: clamp(42px, 7.6vw, 86px);
  line-height: 0.96;
}

h2 {
  font-size: clamp(30px, 4.8vw, 56px);
  line-height: 1.04;
}

h3 {
  font-size: 22px;
  line-height: 1.2;
}

.lead {
  width: 100%;
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--ds-color-fg-muted);
  font-size: 18px;
  line-height: 1.62;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--ds-color-fg-primary);
  border-radius: var(--ds-radius-sm);
  color: var(--ds-color-fg-primary);
  font-weight: 720;
  line-height: 20px;
  text-align: center;
  text-decoration: none;
}

.button.primary {
  border-color: var(--ds-color-accent-primary);
  background: var(--ds-color-accent-primary);
  color: var(--ds-color-ink);
}

.button:hover,
.button:focus-visible {
  transform: translate(-1px, -1px);
}

.status-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--ds-color-divider);
}

.status-item {
  min-height: 104px;
  padding: 22px var(--ds-page-x);
  border-right: 1px solid var(--ds-color-divider);
}

.status-item:last-child {
  border-right: 0;
}

.status-label {
  display: block;
  margin-bottom: 10px;
  color: var(--ds-color-fg-muted);
}

.status-item strong {
  display: block;
  color: var(--ds-color-fg-primary);
  font-size: 17px;
  line-height: 1.35;
}

.section {
  padding: clamp(64px, 9vw, 112px) var(--ds-page-x);
}

.section.light {
  background: var(--ds-color-paper);
  color: var(--ds-color-ink);
}

.section-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
}

.narrow {
  width: min(860px, 100%);
}

.section-split,
.founder-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(36px, 7vw, 96px);
  width: min(1160px, 100%);
  margin: 0 auto;
}

.prose p,
.section p,
.page p,
.page li {
  color: var(--ds-color-fg-muted);
  line-height: 1.72;
}

.prose p:first-child,
.content-section p:first-child {
  margin-top: 0;
}

/* Lime-Akzente auf hellem Grund: abgedunkeltes Lime (#53660d, >= 5.8:1 auf #f4f4ee).
   Reines Lime (#d4ff3d) waere auf Papier ~1.06:1 = unlesbar (Brand-Regel: Lime nie fg auf hell). */
.light .eyebrow,
.light .meta,
.light .tile-index {
  color: var(--ds-color-accent-on-paper);
}

.light p,
.light .tile p {
  color: var(--ds-color-ink-muted);
}

/* Hover/Focus der Text-Links in Light-Sektionen dunkel halten (Basisregel setzt fg-primary = off-white,
   das waere auf Papier unlesbar und ein Fokus-Sichtbarkeitsproblem). */
.light .text-link:hover,
.light .text-link:focus-visible {
  color: var(--ds-color-ink);
  text-decoration-color: var(--ds-color-accent-on-paper);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 40px;
  border: 1px solid var(--ds-color-divider);
  background: var(--ds-color-divider);
}

.grid.two,
.contact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tile {
  min-height: 220px;
  padding: 28px;
  background: var(--ds-color-bg-primary);
}

.light .grid {
  border-color: var(--ds-color-paper-muted);
  background: var(--ds-color-paper-muted);
}

.light .tile {
  background: var(--ds-color-paper);
}

.product-tile {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tile p {
  margin: 0;
}

.tile .text-link {
  margin-top: auto;
}

.principle-list {
  display: grid;
  gap: 1px;
  border: 1px solid var(--ds-color-divider);
  background: var(--ds-color-divider);
}

.principle-list article {
  padding: 26px;
  background: var(--ds-color-bg-primary);
}

.principle-list p {
  margin: 14px 0 0;
}

.founder-band {
  border-block: 1px solid var(--ds-color-divider);
  background: var(--ds-color-bg-elevated);
}

.final-cta {
  min-height: 420px;
}

.check-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.check-row span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 10px;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-sm);
  color: var(--ds-color-fg-muted);
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
}

.page {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 88px 0 104px;
}

.page h1 {
  font-size: clamp(40px, 6.4vw, 72px);
}

.content-section {
  margin-top: 52px;
}

.content-section h2 {
  font-size: clamp(26px, 4vw, 36px);
  overflow-wrap: anywhere;
}

address {
  font-style: normal;
  line-height: 1.55;
}

.notice {
  margin-top: 32px;
  padding: 20px;
  border: 1px solid var(--ds-color-accent-warn);
  border-radius: var(--ds-radius-md);
  background: rgba(255, 106, 46, 0.1);
}

.notice.neutral {
  border-color: var(--ds-color-divider);
  background: var(--ds-color-bg-elevated);
}

.notice p {
  margin: 0;
}

.contact-grid {
  display: grid;
  gap: 1px;
  margin-top: 28px;
  border: 1px solid var(--ds-color-divider);
  background: var(--ds-color-divider);
}

.contact-form {
  display: grid;
  gap: 18px;
  max-width: 680px;
  margin-top: 28px;
}

.contact-form label {
  display: grid;
  gap: var(--ds-spacing-1);
  color: var(--ds-color-fg-muted);
  font-size: 14px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-sm);
  padding: 13px 14px;
  background: var(--ds-color-bg-elevated);
  color: var(--ds-color-fg-primary);
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
  min-height: 156px;
}

.contact-status,
.contact-fallback {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-sm);
  background: var(--ds-color-bg-elevated);
  color: var(--ds-color-fg-muted);
  font-size: 14px;
  line-height: 1.5;
}

.legal-page a,
.page .text-link {
  color: var(--ds-color-fg-primary);
}

.error-page {
  min-height: calc(100svh - 260px);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(240px, 1.1fr) minmax(200px, 0.8fr) minmax(180px, 0.5fr);
  gap: 28px;
  padding: 34px var(--ds-page-x);
  border-top: 1px solid var(--ds-color-divider);
  color: var(--ds-color-fg-muted);
  font-size: 14px;
}

.footer-brand p,
.footer-meta span {
  margin: 14px 0 0;
  color: var(--ds-color-fg-muted);
  line-height: 1.6;
}

.footer-links,
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-meta {
  align-items: flex-start;
}

@media (max-width: 900px) {
  .site-header,
  .site-footer,
  .section-split,
  .founder-layout,
  .status-band {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: flex-start;
    display: grid;
  }

  .nav {
    justify-content: flex-start;
  }

  .status-item {
    border-right: 0;
    border-bottom: 1px solid var(--ds-color-divider);
  }

  .status-item:last-child {
    border-bottom: 0;
  }

  .grid,
  .grid.two,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 14px 24px;
  }

  .nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 14px;
    font-size: 14px;
  }

  .nav a {
    white-space: normal;
  }

  .hero {
    min-height: 660px;
  }

  .hero-content,
  .section-inner,
  .section-split,
  .founder-layout,
  .narrow {
    width: 100%;
    max-width: min(310px, calc(100vw - 48px));
  }

  .page {
    width: auto;
    max-width: none;
    margin: 0;
    padding: 88px 24px 104px;
  }

  .hero-content,
  .section {
    padding-right: 24px;
    padding-left: 24px;
  }

  h1,
  .page h1 {
    font-size: clamp(38px, 11vw, 46px);
  }

  .hero::after {
    background:
      linear-gradient(90deg, rgba(14, 14, 15, 0.98) 0%, rgba(14, 14, 15, 0.9) 66%, rgba(14, 14, 15, 0.7)),
      linear-gradient(0deg, rgba(14, 14, 15, 0.94), rgba(14, 14, 15, 0.2) 44%);
  }

  .button {
    width: 100%;
  }

  .tile,
  .principle-list article {
    min-height: auto;
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* ==========================================================================
   Product pages (pp-*) — "Paper on a desk"
   The product interiors are warm paper (#faf8f3, petrol accent, serif). Excerpt
   and calculator cards render as light paper inside the dark site layout, so a
   visitor sees the real product interior. Colours below mirror the product build
   token set (paper/ink/petrol/ok/stop/warn). Serif stack matches the guides.
   ========================================================================== */
:root {
  --pp-paper: #faf8f3;
  --pp-surface: #ffffff;
  --pp-ink: #16181d;
  --pp-ink-soft: #4a4f57;
  --pp-muted: #60666e;
  --pp-line: #e6e2d8;
  --pp-accent: #0f5c57;
  --pp-accent-ink: #0a3d39;
  --pp-accent-wash: #eaf2f0;
  --pp-warn-line: #e6a94e;
  --pp-warn-wash: #fdf3e7;
  --pp-warn-ink: #7a5b1e;
  --pp-ok: #2f7d5a;
  --pp-stop: #b23b32;
  --pp-bad: #a8432e;
  --pp-bad-wash: #f7ede9;
  --pp-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --pp-mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
}

.pp-page {
  width: min(1000px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 104px;
}

.pp-breadcrumb {
  margin: 0 0 22px;
  color: var(--ds-color-fg-muted);
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
}

.pp-breadcrumb a {
  color: var(--ds-color-fg-muted);
}

.pp-breadcrumb a:hover,
.pp-breadcrumb a:focus-visible {
  color: var(--ds-color-fg-primary);
  text-decoration-color: var(--ds-color-accent-primary);
}

/* Spec chips: compact monospace facts */
.pp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.pp-chips li {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 11px;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-sm);
  color: var(--ds-color-fg-muted);
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  line-height: 1.3;
}

/* CTA block: price + button + micro copy */
.pp-cta {
  margin: 40px 0;
  padding: 28px;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-md);
  background: var(--ds-color-bg-elevated);
}

.pp-price {
  margin: 0;
  color: var(--ds-color-fg-primary);
  font-family: "Inter Tight", Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: 30px;
  font-weight: 760;
  line-height: 1.1;
}

.pp-price-note {
  margin: 10px 0 0;
  max-width: 640px;
  color: var(--ds-color-fg-muted);
  font-size: 14px;
  line-height: 1.6;
}

.pp-cta .actions {
  margin-top: 22px;
}

.pp-offer {
  margin: 12px 0 0;
  color: var(--ds-color-accent-primary);
  font-size: 14px;
  line-height: 1.6;
}

.pp-price-small {
  color: var(--ds-color-fg-muted);
  font-size: 14px;
  font-weight: 400;
}

.pp-lang-notice {
  margin: 24px 0;
  padding: 16px 20px;
  border: 1px solid var(--ds-color-divider);
  border-left: 3px solid var(--ds-color-accent-primary);
  border-radius: var(--ds-radius-sm);
  background: var(--ds-color-bg-elevated);
  color: var(--ds-color-fg-muted);
  font-size: 15px;
  line-height: 1.65;
}

.pp-micro {
  margin: 18px 0 0;
  color: var(--ds-color-fg-muted);
  font-size: 14px;
  line-height: 1.6;
}

.pp-disclosure {
  margin: 8px 0 0;
  color: var(--ds-color-fg-muted);
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  line-height: 1.5;
}

.pp-lang-flag {
  margin: 0 0 8px;
  color: var(--ds-color-accent-warn);
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  text-transform: uppercase;
}

/* Hub product cards (cover + facts) */
.pp-product-list {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

.pp-product-card {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: clamp(20px, 4vw, 40px);
  padding: 24px;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-md);
  background: var(--ds-color-bg-elevated);
}

.pp-product-card .pp-cover {
  align-self: start;
  width: 100%;
  height: auto;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-sm);
  background: var(--ds-color-bg-primary);
}

.pp-product-card h3 {
  margin: 0;
}

.pp-product-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pp-facts {
  margin: 0;
  padding-left: 18px;
  color: var(--ds-color-fg-muted);
  line-height: 1.6;
}

.pp-facts li {
  margin: 4px 0;
}

/* Paper cards — the product interior on the dark site */
.pp-paper {
  margin: 24px 0;
  padding: 0;
  border: 1px solid var(--pp-line);
  border-radius: var(--ds-radius-md);
  background: var(--pp-paper);
  color: var(--pp-ink);
  overflow: hidden;
}

.pp-paper-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--pp-line);
  background: var(--pp-surface);
  color: var(--pp-muted);
  font-family: var(--pp-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pp-paper-head .pp-page-num {
  color: var(--pp-accent);
}

.pp-paper-body {
  padding: 24px clamp(20px, 4vw, 34px);
}

.pp-paper h2,
.pp-paper h3,
.pp-paper h4 {
  font-family: var(--pp-serif);
  color: var(--pp-ink);
  line-height: 1.2;
  letter-spacing: 0;
}

.pp-paper h3 {
  margin: 0 0 12px;
  font-size: 24px;
}

.pp-paper h4 {
  margin: 0 0 8px;
  font-size: 17px;
}

.pp-paper p,
.pp-paper li {
  color: var(--pp-ink-soft);
  line-height: 1.68;
}

.pp-paper p:first-child {
  margin-top: 0;
}

.pp-paper strong {
  color: var(--pp-ink);
}

.pp-paper figure {
  margin: 0;
}

.pp-paper svg {
  display: block;
  width: 100%;
  height: auto;
}

.pp-paper figcaption {
  margin-top: 12px;
  color: var(--pp-muted);
  font-size: 13px;
  line-height: 1.5;
}

.pp-paper-foot {
  padding: 12px 24px;
  border-top: 1px solid var(--pp-line);
  background: var(--pp-surface);
  color: var(--pp-muted);
  font-size: 13px;
  line-height: 1.5;
}

/* KPI grid inside paper */
.pp-kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 20px;
}

.pp-kpi {
  padding: 16px;
  border: 1px solid var(--pp-line);
  border-radius: var(--ds-radius-md);
  background: var(--pp-surface);
}

.pp-kpi .n {
  font-family: var(--pp-serif);
  font-size: 28px;
  color: var(--pp-accent-ink);
}

.pp-kpi .l {
  margin-top: 4px;
  color: var(--pp-muted);
  font-size: 14px;
  line-height: 1.5;
}

/* Do / Don't 2x2 inside paper */
.pp-proco {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
}

.pp-proco .pp-card {
  padding: 16px 18px;
  border: 1px solid var(--pp-line);
  border-radius: var(--ds-radius-md);
  background: var(--pp-surface);
}

.pp-proco .pp-do {
  border-left: 4px solid var(--pp-accent);
  background: var(--pp-accent-wash);
}

.pp-proco .pp-dont {
  border-left: 4px solid var(--pp-bad);
  background: var(--pp-bad-wash);
}

.pp-proco .pp-card-h {
  margin-bottom: 8px;
  font-family: var(--pp-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.pp-proco .pp-do .pp-card-h {
  color: var(--pp-accent-ink);
}

.pp-proco .pp-dont .pp-card-h {
  color: var(--pp-bad);
}

.pp-proco ul {
  margin: 0;
  padding-left: 18px;
}

.pp-proco li {
  font-size: 15px;
  margin: 5px 0;
}

/* Calculator card (live demo) */
.pp-calc {
  margin: 20px 0 0;
  padding: 22px;
  border: 1px solid var(--pp-line);
  border-radius: var(--ds-radius-md);
  background: var(--pp-surface);
}

.pp-calc h3,
.pp-calc h4 {
  margin-top: 0;
  font-family: var(--pp-serif);
  color: var(--pp-ink);
}

.pp-calc .pp-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
}

.pp-calc .pp-grid2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 24px;
}

.pp-calc label {
  display: block;
  color: var(--pp-ink-soft);
  font-size: 14px;
}

.pp-calc input,
.pp-calc select {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--pp-line);
  border-radius: 8px;
  width: 180px;
  max-width: 100%;
  background: var(--pp-paper);
  color: var(--pp-ink);
  text-align: right;
}

.pp-calc select {
  width: auto;
  max-width: 340px;
  text-align: left;
}

.pp-calc .pp-grid2 input,
.pp-calc .pp-grid2 select {
  width: 100%;
  margin-bottom: 10px;
}

.pp-field-error {
  margin: 8px 0 0;
  color: var(--pp-stop);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.45;
}

.pp-calc input[aria-invalid="true"] {
  border-color: var(--pp-stop);
  outline: 2px solid var(--pp-bad-wash);
}

.pp-calc .pp-result {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--pp-line);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.pp-calc .pp-result output {
  color: var(--pp-ink-soft);
  font-size: 15px;
}

.pp-calc .pp-result-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--pp-line);
}

.pp-calc .pp-result-grid .n {
  font-family: var(--pp-serif);
  font-size: 26px;
  color: var(--pp-accent-ink);
  font-variant-numeric: tabular-nums;
}

.pp-calc .pp-result-grid .l {
  color: var(--pp-muted);
  font-size: 13px;
}

.pp-ampel {
  margin: 14px 0;
}

.pp-ampel .pp-bar {
  position: relative;
  height: 20px;
  border-radius: var(--ds-radius-pill);
  background: var(--pp-line);
  overflow: hidden;
}

.pp-fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--pp-ok);
  transition: width 0.2s ease, background 0.2s ease;
}

.pp-fill.mid {
  background: var(--pp-warn-line);
}

.pp-fill.high {
  background: var(--pp-stop);
}

.pp-ampel .pp-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  color: var(--pp-muted);
  font-size: 13px;
}

.pp-badge-ok {
  color: var(--pp-ok);
  font-weight: 600;
}

.pp-badge-mid {
  color: var(--pp-warn-ink);
  font-weight: 600;
}

.pp-badge-high {
  color: var(--pp-stop);
  font-weight: 600;
}

.pp-formula {
  margin-top: 10px;
  color: var(--pp-muted);
  font-size: 13px;
  line-height: 1.5;
}

.pp-calc noscript {
  display: block;
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--pp-warn-line);
  border-radius: var(--ds-radius-md);
  background: var(--pp-warn-wash);
  color: var(--pp-warn-ink);
  font-size: 14px;
  line-height: 1.5;
}

.pp-disclaimer {
  margin: 12px 0 0;
  color: var(--ds-color-fg-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* Two-column "for whom / not for whom" */
.pp-audience {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--ds-color-divider);
  background: var(--ds-color-divider);
}

.pp-audience article {
  padding: 24px;
  background: var(--ds-color-bg-primary);
}

.pp-audience h3 {
  margin: 0 0 12px;
}

.pp-audience ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ds-color-fg-muted);
  line-height: 1.6;
}

/* Chapter / contents list */
.pp-toc {
  margin-top: 24px;
  padding-left: 0;
  list-style: none;
  counter-reset: pp-toc;
}

.pp-toc li {
  padding: 12px 0;
  border-bottom: 1px solid var(--ds-color-divider);
  color: var(--ds-color-fg-muted);
  line-height: 1.55;
}

.pp-toc li::before {
  counter-increment: pp-toc;
  content: counter(pp-toc, decimal-leading-zero) "  ";
  color: var(--ds-color-accent-primary);
  font-family: "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
}

.pp-toc strong {
  color: var(--ds-color-fg-primary);
}

/* Cross-link card + language link */
.pp-faq details {
  border-bottom: 1px solid var(--ds-color-divider);
  padding: 6px 0;
}

.pp-faq summary {
  cursor: pointer;
  padding: 12px 0;
  font-weight: 640;
  color: var(--ds-color-fg-primary);
  list-style-position: outside;
}

.pp-faq summary::marker {
  color: var(--ds-color-accent-primary);
}

.pp-faq details p {
  margin: 4px 0 14px;
  max-width: 70ch;
  color: var(--ds-color-fg-muted);
  line-height: 1.65;
}

.pp-crosslink {
  margin: 40px 0 0;
  padding: 24px;
  border: 1px solid var(--ds-color-divider);
  border-radius: var(--ds-radius-md);
  background: var(--ds-color-bg-elevated);
}

.pp-crosslink h3 {
  margin: 0 0 10px;
}

.pp-langlink {
  margin: 32px 0 0;
}

.pp-section {
  margin-top: 56px;
}

.pp-section > h2 {
  font-size: clamp(26px, 4vw, 38px);
}

.pp-section > p {
  color: var(--ds-color-fg-muted);
  line-height: 1.72;
}

@media (max-width: 760px) {
  .pp-product-card {
    grid-template-columns: 1fr;
  }

  .pp-kpi-grid,
  .pp-proco,
  .pp-audience,
  .pp-calc .pp-grid2,
  .pp-calc .pp-result-grid {
    grid-template-columns: 1fr;
  }

  .pp-calc .pp-row {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .pp-calc input,
  .pp-calc select {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .pp-page {
    width: auto;
    max-width: none;
    margin: 0;
    padding: 72px 24px 104px;
  }

  .pp-paper-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .pp-paper-head span {
    min-width: 0;
  }
}