@import url("https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700;800&display=swap");
/* ============================================================
   KNOW/HOW/TO — Shared Design System
   Tokens: design_handoff_knowhowto_design_system-1 / Foundation v1.1
   ============================================================ */

/* Early paint — hardcoded so background shows before custom props resolve */
html { background: #ffffff; }

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
a { color: inherit; }
button, input { font: inherit; color: inherit; }

/* ── DESIGN TOKENS ───────────────────────────────────────────
   Source: design_handoff_knowhowto_design_system-1 / README.md
   ─────────────────────────────────────────────────────────── */
:root {
  /* ── Core palette ── */
  --black:        #000000;   /* Tinte — primary text, strong rules */
  --white:        #ffffff;   /* true white — use sparingly */
  --paper:        #ffffff;   /* Papier — page background */
  --paper-deep:   #ffffff;   /* Tiefen-Papier — recessed background */
  --card:         #ffffff;   /* Karte — card / inset surface */
  --ink:          #000000; /* body copy */
  --ink-soft:     #000000;   /* body copy on paper */
  --mid:          #000000; /* muted / secondary text */
  --pale:         #000000;
  --faint:        transparent; /* faint fills */
  --ghost:        transparent;
  --surface:      #ffffff;
  --surface-strong: #ffffff;

  /* ── Signal accent — the only loud colour ── */
  --accent:       #000000;   /* Monochrome signal — slashes, links, active states */
  --accent-deep:  #000000;   /* pressed / alt accent */

  /* ── Cotlin earth neutrals (area carriers) ── */
  --oat:    #ffffff;  /* Hafer — neutral band */
  --sage:   #ffffff;  /* white — /create surface */
  --sand:   #ffffff;  /* white  — /make surface */
  --taupe:  #ffffff;  /* Taupe — accent neutral */
  --slate:  #ffffff;  /* white — /impact surface (dark) */

  /* ── Area aliases (for CSS vars that already exist in HTML) ── */
  --accent-design: #000000;    /* /create area surface */
  --accent-make:   #000000;    /* /make area surface */
  --accent-impact: #000000;   /* /impact area surface */

  /* ── Border / rule tokens ── */
  --line:          rgba(0,0,0,.22); /* hairline — 1px interior rules */
  --line-2:        rgba(0,0,0,.44); /* stronger hairline */
  --strong:        #000000;            /* frame / major rule colour */
  --border:        1px solid var(--line);
  --border-strong: 1.5px solid var(--strong);

  /* ── Hover / interactive ── */
  --hover-bg: #ffffff;   /* ink — dark fill on hover */

  /* ── Layout ── */
  --content-max: 1320px;
  --gutter: clamp(20px, 5vw, 72px);

  /* ── Fonts ── */
  --font-display: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono:    "DM Mono", ui-monospace, monospace;
  --font-ui:      "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* ── Spacing scale (8 · 12 · 16 · 24 · 32 · 48 · 64 · 80) ── */
  --space-1: 8px;  --space-2: 12px; --space-3: 16px;
  --space-4: 24px; --space-5: 32px; --space-6: 48px;
  --space-7: 64px; --space-8: 80px;
  --gap-xl: 48px; --gap-lg: 32px; --gap-md: 20px;
  --gap-sm: 12px; --gap-xs: 8px;

  /* ── Type scale ── */
  --t-xl: clamp(52px, 6.5vw, 96px); --t-lg: 18px;
  --t-md: 15px; --t-sm: 13px; --t-xs: 11px;
  --kht-header-title-size: clamp(42px, 6vw, 84px);
  --kht-header-word-size:  clamp(42px, 5.85vw, 82px);
  --kht-header-gap: 22px;
}

/* ── SELECTION ───────────────────────────────────────────── */
::selection { background: var(--accent); color: var(--paper); }

/* ── GLOBAL HEADLINE TYPOGRAPHY ─────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 300;
}

/* Base */
body {
  min-height: 100vh;
  background: var(--paper);
  color: var(--black);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Page wrapper */
#page {
  width: min(var(--content-max), calc(100% - var(--gutter) - var(--gutter)));
  margin: 0 auto;
  padding: 28px 0 72px;
}

/* ── HEADER ──────────────────────────────────────────────── */

.topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 24px;
  border-bottom: var(--border-strong);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--black);
  line-height: 1;
}
.brand img { height: 40px; width: auto; display: block; flex-shrink: 0; }
.brand > span {
  display: flex;
  flex-direction: column;
  gap: 4px;
  justify-content: center;
}
.brand-title,
.topline .brand-title {
  display: block;
  font-family: var(--font-display) !important;
  font-size: 15px !important;
  line-height: 1 !important;
  font-weight: 600 !important;
  letter-spacing: .04em !important;
  text-transform: uppercase;
}
.brand-sub,
.topline .brand-sub {
  display: block;
  font-family: var(--font-mono) !important;
  font-size: 9px !important;
  line-height: 1 !important;
  font-weight: 400 !important;
  letter-spacing: .16em !important;
  color: var(--mid);
}

.global-nav {
  display: flex;
  gap: 0;
  border: var(--border-strong);
  background: transparent;
}
.global-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 20px;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--mid);
  white-space: nowrap;
  transition: background .16s ease, color .16s ease;
}
.global-nav a + a { border-left: var(--border-strong); }
.global-nav a:hover,
.global-nav a:focus-visible {
  background: var(--faint);
  color: var(--black);
}
.global-nav a[aria-current="page"] {
  background: var(--black);
  color: var(--paper);
}

.nav-dot {
  display: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 7px;
  flex-shrink: 0;
  transition: transform .18s ease;
}
/* All nav dots use accent (orange) — area neutral surfaces are for surfaces, not UI dots */
.nav-dot--design,
.nav-dot--make,
.nav-dot--impact { background: var(--accent); }
.nav-slash {
  margin-right: 1px;
  color: var(--accent); /* Monochrome signal — slash always orange per design spec */
}
/* Override: all three nav slashes are orange */
.global-nav a:nth-child(1) .nav-slash,
.global-nav a:nth-child(2) .nav-slash,
.global-nav a:nth-child(3) .nav-slash { color: var(--accent); }
.global-nav a:hover .nav-dot,
.global-nav a:focus-visible .nav-dot { transform: scale(1.5); }

/* ── HERO ────────────────────────────────────────────────── */

.hero {
  --hero-accent: var(--accent);
  padding: 76px 0 52px;
  border-bottom: var(--border);
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mid);
  padding-bottom: 5px;
  border-bottom: 1px solid currentColor;
  margin-bottom: 20px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 7.8vw, 112px);
  line-height: .86;
  font-weight: 300;
  letter-spacing: -.055em;
  text-transform: uppercase;
  max-width: 1120px;
  color: var(--black);
}
.hero h1 em {
  display: block;
  font-style: normal;
  max-width: 760px;
  margin-top: 18px;
  font-size: clamp(28px, 3.8vw, 56px);
  line-height: 1.02;
  font-weight: 500;
  letter-spacing: -.035em;
  color: var(--black);
  text-transform: uppercase;
  white-space: nowrap;
}

.hero p {
  max-width: 680px;
  margin-top: 28px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
}

/* ── LABELS & UTILITIES ──────────────────────────────────── */

.section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 14px;
}

/* ── AREA GRID & CARDS ───────────────────────────────────── */

.area-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 16px;
  margin-top: 56px;
}

.area-card {
  position: relative;
  aspect-ratio: 1 / 1;
  padding: 32px;
  min-width: 0;
  max-width: 100%;
  border: var(--border-strong);
  background: rgba(14,14,14,.045);
  overflow: hidden;
  text-decoration: none;
  color: var(--black);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: color .18s ease;
  container-type: inline-size;
}
.area-card::before {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateY(100%);
  transition: transform .28s cubic-bezier(.22,1,.36,1);
}
.area-card:hover::before,
.area-card:focus-visible::before { transform: translateY(0); }
.area-card:hover,
.area-card:focus-visible {
}
.area-card > * {
  position: relative;
  z-index: 1;
  min-width: 0;
  max-width: 100%;
}

/* Accent bar — inner first child */
.area-card-top::after,
.area-card > span:first-child::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  margin-top: 18px;
  transition: width .2s ease;
}
.area-card:hover .area-card-top::after,
.area-card:hover > span:first-child::after { width: 64px; }

.area-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.area-card:hover .area-kicker,
.area-card:focus-visible .area-kicker { }

.area-title {
  display: block;
  margin-top: 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 8cqw, 38px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  max-width: 100%;
  overflow: hidden;
  overflow-wrap: normal;
  word-break: normal;
  hyphens: auto;
  text-wrap: balance;
}

.area-desc {
  display: block;
  max-width: 440px;
  min-width: 0;
  margin-top: 28px;
  font-size: 16px;
  line-height: 1.55;
  transition: color .18s ease;
}
.area-card:hover .area-desc,
.area-card:focus-visible .area-desc { }

.area-links,
.area-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: color .18s ease;
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.area-card:hover .area-links,
.area-card:focus-visible .area-links,
.area-card:hover .area-tags,
.area-card:focus-visible .area-tags { }

/* Reusable robust card title primitives */
.kht-card-title,
.kht-card-title-large {
  display: block;
  max-width: 100%;
  min-width: 0;
  color: var(--black);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;
  overflow: hidden;
  overflow-wrap: normal;
  word-break: normal;
  hyphens: auto;
  text-wrap: balance;
}

.kht-card-title {
  font-size: clamp(24px, 4vw, 44px);
}

.kht-card-title-large {
  font-size: clamp(24px, 8cqw, 38px);
}

.kht-card-copy {
  max-width: 100%;
  min-width: 0;
  overflow-wrap: break-word;
}

.kht-inline-empty,
.kht-empty-state {
  color: var(--mid);
  font-size: 13px;
}

.kht-inline-empty {
  padding: 16px;
}

.kht-empty-state {
  padding: 40px 16px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.kht-muted-inline-meta {
  margin-left: 6px;
  font-weight: 400;
  opacity: .45;
}

/* ── KNOWLEDGE BLOCKS ────────────────────────────────────── */

.knowledge-block {
  grid-column: 1 / -1;
  margin-top: var(--space-6, 48px);
  padding: 28px 32px 26px;
  border: var(--border-strong);
  box-sizing: border-box;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  container-type: inline-size;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  text-decoration: none;
  transition: background .16s ease;
}

a.knowledge-block:hover,
a.knowledge-block:focus-visible {
}

.knowledge-block-header {
  min-width: 0;
}

.knowledge-block-kicker {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mid);
}

.knowledge-block-title {
  display: block;
  max-width: 100%;
  min-width: 0;
  color: var(--black);
  font-family: var(--font-display);
  font-size: clamp(22px, 4cqw, 32px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  overflow: hidden;
  overflow-wrap: normal;
  word-break: normal;
  hyphens: auto;
  text-wrap: balance;
}

.knowledge-block-footer {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.knowledge-block-text {
  max-width: 80rem;
  margin-top: 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
}

.knowledge-block-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0 12px;
  margin-top: 0;
  border: none;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--mid);
}

.knowledge-block-links a,
.knowledge-block-links span {
  min-height: auto;
  padding: 0;
  border: none;
  background: none;
  color: var(--mid);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .14em;
  line-height: 1.6;
  text-decoration: none;
  text-transform: uppercase;
}

.knowledge-block-links a::after,
.knowledge-block-links span::after {
  content: " ·";
  opacity: .4;
}

.knowledge-block-links a:last-child::after,
.knowledge-block-links span:last-child::after {
  content: none;
}

/* legacy: action wrapper no longer used, kept for compat */
.knowledge-block-action {
  display: none;
}

@media (max-width: 640px) {
  .knowledge-block {
    padding: 22px 24px 20px;
  }
}

/* ── TOOL NAVIGATION (Rhino / Grasshopper / KeyShot) ─────── */

#tool-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: var(--border-strong);
  flex-wrap: wrap;
}

#tab-bar {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 16px;
  border: var(--border-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .12s ease, color .12s ease;
  white-space: nowrap;
  text-decoration: none;
}
.tab-btn:hover { }
.tab-btn.active { background: var(--black); color: var(--white); border-color: var(--black); }
.tab-icon { font-size: 12px; opacity: .7; }

#search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  border: var(--border-strong);
  background: #ffffff;
  min-width: 240px;
  flex: 1;
  max-width: 480px;
}
#search-icon { padding: 0 12px; color: var(--mid); font-size: 16px; flex-shrink: 0; }
#search {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--black);
  padding: 10px 8px;
  font-family: var(--font-body);
  font-size: 14px;
}
#search::placeholder { color: var(--mid); }
#clear-search {
  width: 36px;
  height: 36px;
  border: 0;
  border-left: var(--border-strong);
  font-size: 20px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background .14s ease, color .14s ease;
}
#clear-search:hover { }

@media (max-width: 700px) {
  #tool-controls { flex-direction: column; align-items: stretch; }
  #search-wrap { max-width: none; }
}

/* ── SEARCH ──────────────────────────────────────────────── */

.search-block { margin-top: 48px; }

.search-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 8px;
}

.search-row {
  display: grid;
  grid-template-columns: 36px 1fr 36px;
  gap: 0;
  align-items: center;
  border-bottom: var(--border-strong);
  background: transparent;
  transition: border-color .18s ease;
}
.search-row:focus-within { border-bottom-color: var(--black); }

.search-icon {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--mid);
  font-size: 15px;
}

.search-row input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--black);
  padding: 11px 8px;
  font-family: var(--font-body);
  font-size: 15px;
}
.search-row input::placeholder { color: var(--mid); }

.search-row button {
  width: 36px;
  height: 44px;
  border: 0;
  font-size: 20px;
  cursor: pointer;
  transition: color .14s ease;
}
.search-row button:hover { }

/* Search results */
#search-results {
  display: none;
  border: var(--border-strong);
  margin-top: 16px;
}
#search-results:not(:empty) { display: block; }

.search-results-header {
  padding: 14px 16px;
  border-bottom: var(--border);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mid);
}

.result {
  display: grid;
  grid-template-columns: 118px minmax(140px,190px) 1fr;
  gap: 0;
  text-decoration: none;
  border-bottom: var(--border);
  transition: background .12s ease;
}
.result:hover { }
.result-area,
.result-sub,
.result-desc { padding: 14px; }
.result-area,
.result-sub { border-right: var(--border); }
.result-area { display: flex; align-items: flex-start; }

.result-badge {
  display: inline-flex;
  max-width: 100%;
  padding: 3px 6px 2px;
  border: 1px solid rgba(14,14,14,.22);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .01em;
  overflow-wrap: break-word;
  word-break: keep-all;
  white-space: normal;
}
.result-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--mid);
  line-height: 1.4;
  overflow-wrap: break-word;
  word-break: break-word;
}
.result-title {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.15;
}
.result-desc {
  font-size: 12px;
  line-height: 1.45;
  color: var(--mid);
}
.result-reason {
  display: inline-block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .02em;
  color: var(--pale, var(--mid));
}

/* ── FOOTER ──────────────────────────────────────────────── */

.footer {
  margin-top: 80px;
  padding-top: 28px;
  border-top: var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  color: var(--mid);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--black);
}
.footer-brand img { width: auto; height: 40px; }
.footer-brand > span {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-title {
  display: block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.footer-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: .15em;
  color: var(--mid);
}
.footer-nav {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.footer-nav a {
  padding: 6px 14px;
  border: var(--border);
  margin-left: -1px;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
  transition: color .14s ease, background .14s ease;
}
.footer-nav a:hover { }

/* ── RESPONSIVE ──────────────────────────────────────────── */

/* Desktop-breit: 3 → 2 Spalten */
@media (max-width: 1100px) {
  .area-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

/* iPad mini portrait & Tablet (≤ 768px): 2 Spalten, Nav scrollbar */
@media (max-width: 768px) {
  .area-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .global-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .global-nav::-webkit-scrollbar { display: none; }
}

/* Phones (≤ 680px): Header stapelt, 1 Spalte */
@media (max-width: 680px) {
  .topline { flex-direction: column; align-items: flex-start; }
  .global-nav { flex-wrap: wrap; overflow-x: visible; }
  .area-grid { grid-template-columns: 1fr; }
  .hero h1 em { white-space: normal; }
  .footer { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  #page { padding-top: 20px; }
  .hero { padding-top: 48px; }
  .result { grid-template-columns: 1fr; }
  .result-area,
  .result-sub { border-right: 0; border-bottom: var(--border); }
}

/* MONOCHROME RESET - black text on white ground, no area colour surfaces */
:root {
  --black: #000000;
  --white: #ffffff;
  --paper: #ffffff;
  --paper-deep: #ffffff;
  --card: #ffffff;
  --ink: #000000;
  --ink-soft: #000000;
  --mid: #000000;
  --pale: #000000;
  --faint: transparent;
  --ghost: transparent;
  --surface: #ffffff;
  --surface-strong: #ffffff;
  --accent: #000000;
  --accent-deep: #000000;
  --oat: #ffffff;
  --sage: #ffffff;
  --sand: #ffffff;
  --taupe: #ffffff;
  --slate: #ffffff;
  --accent-design: #000000;
  --accent-make: #000000;
  --accent-impact: #000000;
  --accent-show: #000000;
  --accent-sell: #000000;
  --accent-research: #000000;
  --line: rgba(0,0,0,.22);
  --line-2: rgba(0,0,0,.44);
  --strong: #000000;
  --border: 1px solid var(--line);
  --border-strong: 1.5px solid var(--strong);
  --hover-bg: #ffffff;
  --kht-content-bg: #ffffff;
  --kht-content-panel: #ffffff;
  --kht-content-panel-soft: #ffffff;
  --kht-content-text: #000000;
  --kht-content-muted: #000000;
  --kht-content-line: rgba(0,0,0,.22);
  --kht-content-strong-line: #000000;
  --browser-skin-bg: #ffffff;
  --browser-skin-panel: #ffffff;
  --browser-skin-panel-soft: #ffffff;
  --browser-skin-active: #ffffff;
  --browser-skin-text: #000000;
  --browser-skin-muted: #000000;
}

html,
body {
  background: #ffffff !important;
  background-color: #ffffff !important;
  background-image: none !important;
  color: #000000 !important;
}

body :where(header, main, footer, nav, section, article, aside, div, form, fieldset, label, ul, ol, li, table, thead, tbody, tr, th, td, details, summary) {
  background-color: #ffffff !important;
  background-image: none !important;
  color: #000000 !important;
}

body :where(a, a *, button, button *, input, textarea, select, option, h1, h2, h3, h4, h5, h6, p, span, small, strong, em, b, i, li, dt, dd, th, td, label) {
  color: #000000 !important;
}

body :where(.area-card, .category-card, .tool-card-simple, .workflow-card, .knowledge-block, .library-card, .tool-card, .result, .gs-result, .search-block, .search-row, #search-wrap, .global-nav, .footer-nav a, .quick-grid a, .template-panel, .detail-notes, .panel, #panel, #detail, #detail-content) {
  background: #ffffff !important;
  background-color: #ffffff !important;
  background-image: none !important;
  color: #000000 !important;
  box-shadow: none !important;
}

body :where(.area-card::before, .category-card::before, .tool-card-simple::before, .workflow-card::before, .knowledge-block::before),
body :where(.area-card::after, .category-card::after, .tool-card-simple::after, .workflow-card::after, .knowledge-block::after) {
  background: #000000 !important;
  background-color: #000000 !important;
}

body :where(.global-nav a[aria-current="page"], .tab-btn.active, .filter-btn.active, .pill.active, button.active) {
  background: #ffffff !important;
  background-color: #ffffff !important;
  color: #000000 !important;
}

body :where(input, textarea, select, button) {
  background: #ffffff !important;
  background-color: #ffffff !important;
  color: #000000 !important;
}

body :where(input::placeholder, textarea::placeholder) {
  color: #000000 !important;
  opacity: 1 !important;
}

body :where(img, svg, video, canvas) {
  filter: none !important;
}

/* ── GLOBAL WHITE BACKGROUND OVERRIDE ─────────────────────────────
   Pages use a clear white ground. Active states stay monochrome and
   content cards remain white for a calm, consistent wireframe surface.
   ─────────────────────────────────────────────────────────────── */
:root {
  --paper: #ffffff;
  --paper-deep: #ffffff;
  --kht-selected-bg: #ffffff;
}

html,
body,
html body,
html body #page {
  background: var(--paper, #ffffff) !important;
  background-color: var(--paper, #ffffff) !important;
}

html body :where(.site-main, .area-main, main, #main, #content-wrap) {
  background: transparent !important;
  background-color: transparent !important;
}

html body :where(.hero, .page-hero, .tool-hero, .tasks-hero, .detail-hero) {
  background: transparent !important;
  background-color: transparent !important;
}

html body :where(.card, .area-card, .category-card, .tool-card-simple, .workflow-card, .knowledge-block, .library-card, .tool-card, .task-card, .entry-card, .glossary-card, .detail-card, .triple-card, .sc-box, .sc-tip-box, .fw-box, .glossar-card, .search-block, .search-row, #detail-content, .kht-browser-card) {
  background: #ffffff !important;
  background-color: #ffffff !important;
}



/* ── UI BUTTON TYPOGRAPHY — OPEN SANS ───────────────────────────
   Buttons, tabs and navigation controls use Open Sans for clearer
   reading; editorial text and display headlines keep their own voice.
   ─────────────────────────────────────────────────────────────── */
:root {
  --font-ui: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

html body :where(
  button,
  input[type="button"],
  input[type="submit"],
  input[type="reset"],
  [role="button"],
  .button,
  .btn,
  .topline nav a,
  .global-nav a,
  .footer-nav a,
  .section-nav-link,
  .tool-secondary-nav a,
  .ia-breadcrumb a,
  .breadcrumb a,
  .kht-browser-tab,
  .kht-browser-tab *,
  .kht-browser-item,
  .kht-browser-item *,
  .cat-btn,
  .cat-btn *,
  .sub-btn,
  .sub-btn *,
  .tab-btn,
  .filter-btn,
  .pw-cat,
  .category-tab,
  .subcat-tab,
  .filter-chip
) {
  font-family: var(--font-ui) !important;
}

html body :where(
  button,
  [role="button"],
  .button,
  .btn,
  .topline nav a,
  .global-nav a,
  .footer-nav a,
  .section-nav-link,
  .tool-secondary-nav a,
  .kht-browser-tab,
  .cat-btn,
  .sub-btn,
  .tab-btn,
  .filter-btn,
  .pw-cat,
  .category-tab,
  .subcat-tab,
  .filter-chip
) {
  font-weight: 700 !important;
  letter-spacing: .045em !important;
}

html body :where(
  .kht-browser-tab-count,
  .kht-browser-item-summary,
  .kht-browser-item-meta,
  .cat-count,
  .item-sub,
  .sec-sub
) {
  font-family: var(--font-ui) !important;
  font-weight: 600 !important;
  letter-spacing: .025em !important;
}


/* ── UI BUTTON TYPOGRAPHY — OPEN SANS, SPECIFIC OVERRIDE ───────
   Overrides older mono !important rules on navigation, tabs and
   themebrowser controls.
   ─────────────────────────────────────────────────────────────── */
html body .topline nav a,
html body .global-nav a,
html body .footer-nav a,
html body .section-nav .section-nav-link,
html body .tool-secondary-nav a,
html body .tool-mode-tabs a,
html body .tool-tab-row a,
html body .ia-breadcrumb a,
html body .breadcrumb a,
html body .kht-browser-tabs .kht-browser-tab,
html body .kht-browser-tabs .kht-browser-tab span,
html body .kht-browser-items .kht-browser-item,
html body .kht-browser-items .kht-browser-item *,
html body #cat-grid .cat-btn,
html body #cat-grid .cat-btn *,
html body #sub-list .sub-btn,
html body #sub-list .sub-btn *,
html body #items-list .item-card,
html body #items-list .item-card *,
html body .filter-row button,
html body .filter-row button *,
html body #pw-cat-row .pw-cat,
html body #proc-filter-row .pw-cat {
  font-family: var(--font-ui, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
}

html body .topline nav a,
html body .global-nav a,
html body .footer-nav a,
html body .section-nav .section-nav-link,
html body .tool-secondary-nav a,
html body .tool-mode-tabs a,
html body .tool-tab-row a,
html body .kht-browser-tabs .kht-browser-tab,
html body #cat-grid .cat-btn,
html body #sub-list .sub-btn,
html body #items-list .item-card,
html body .filter-row button,
html body #pw-cat-row .pw-cat,
html body #proc-filter-row .pw-cat {
  font-weight: 700 !important;
  letter-spacing: .04em !important;
}

html body .kht-browser-tabs .kht-browser-tab small,
html body .kht-browser-tabs .kht-browser-tab .kht-browser-tab-count,
html body .kht-browser-items .kht-browser-item-summary,
html body .kht-browser-items .kht-browser-item-meta,
html body #items-list .item-sub,
html body #cat-grid .cat-count,
html body #sub-list .sec-sub {
  font-family: var(--font-ui, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 600 !important;
  letter-spacing: .02em !important;
}


/* ── UI BUTTON TYPOGRAPHY — OPEN SANS, FILTER ROW FIX ────────── */
html body #filter-row .cat-btn,
html body #filter-row .cat-btn *,
html body #filter-row .kht-browser-tab,
html body #filter-row .kht-browser-tab *,
html body header.topline .global-nav a,
html body header.topline .global-nav a *,
html body .topline .global-nav a,
html body .topline .global-nav a * {
  font-family: var(--font-ui, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 700 !important;
  letter-spacing: .04em !important;
}

html body #filter-row .cat-count,
html body #filter-row .sec-sub,
html body #filter-row .kht-browser-tab-count {
  font-family: var(--font-ui, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 600 !important;
  letter-spacing: .02em !important;
}


/* ── UI BUTTON TYPOGRAPHY — OPEN SANS, FINAL SPECIFIC FIX ────── */
html body #page > header.topline .global-nav a,
html body #page > header.topline .global-nav a *,
html body #page > .topline .global-nav a,
html body #page > .topline .global-nav a *,
body.tool-rhino #filter-row .cat-btn,
body.tool-rhino #filter-row .cat-btn *,
body.tool-grasshopper #filter-row .cat-btn,
body.tool-grasshopper #filter-row .cat-btn *,
body.tool-keyshot .kht-browser-tabs .kht-browser-tab,
body.tool-keyshot .kht-browser-tabs .kht-browser-tab * {
  font-family: var(--font-ui, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 700 !important;
  letter-spacing: .04em !important;
}

body.tool-rhino #filter-row .cat-btn .cat-count,
body.tool-rhino #filter-row .cat-btn .sec-sub,
body.tool-grasshopper #filter-row .cat-btn .cat-count,
body.tool-grasshopper #filter-row .cat-btn .sec-sub,
body.tool-keyshot .kht-browser-tabs .kht-browser-tab small,
body.tool-keyshot .kht-browser-tabs .kht-browser-tab .kht-browser-tab-count {
  font-family: var(--font-ui, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 600 !important;
  letter-spacing: .02em !important;
}


/* ── OPEN SANS MAIN TYPOGRAPHY — FINE READING WEIGHTS ──────────
   Main typography now uses Open Sans. Descriptive copy and dense
   browser/card summaries use lighter weights for better rhythm.
   ─────────────────────────────────────────────────────────────── */
:root {
  --font-display: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-ui: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-fine: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --kht-content-font: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

html body {
  font-family: var(--font-body, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 400;
}

html body :where(h1, h2, h3, h4, h5, h6, .hero-title, .page-title, .tool-title, .kht-browser-title) {
  font-family: var(--font-display, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
}

html body :where(
  p,
  li,
  td,
  th,
  label,
  .hero p,
  .page-hero p,
  .tool-hero p,
  .page-intro,
  .hero-copy,
  .lead,
  .intro,
  .card p,
  .area-card p,
  .category-card p,
  .tool-card p,
  .workflow-card p,
  .knowledge-block p,
  .kht-browser-desc,
  .kht-browser-desc p,
  .kht-browser-card p,
  .kht-browser-block p,
  .detail-card p,
  .detail-notes p,
  .tool-detail-copy,
  .tool-detail-copy p
) {
  font-family: var(--font-fine, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 400 !important;
  letter-spacing: 0 !important;
}

html body :where(
  .hero-subtitle,
  .page-subtitle,
  .tool-subtitle,
  .kht-browser-subtitle,
  .kht-browser-card > p:first-of-type,
  .detail-lead,
  .tool-detail-lead
) {
  font-family: var(--font-fine, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 300 !important;
  letter-spacing: -.01em !important;
}

html body :where(
  .kht-browser-tab small,
  .kht-browser-tab-count,
  .cat-count,
  .sec-sub,
  .item-sub,
  .kht-browser-item-summary,
  .kht-browser-item-meta,
  .entry-card small,
  .card-meta,
  .card-subtitle,
  .tool-card-subtitle
) {
  font-family: var(--font-fine, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 400 !important;
  letter-spacing: .005em !important;
}


/* ── OPEN SANS FINE TEXT — SPECIFIC DENSE-SPACE OVERRIDE ─────── */
html body .kht-browser-items .kht-browser-item-summary,
html body .kht-browser-items .kht-browser-item-meta,
html body .kht-browser-tabs .kht-browser-tab small,
html body .kht-browser-tabs .kht-browser-tab .kht-browser-tab-count,
html body .kht-browser-tabs .kht-browser-tab-count,
html body #filter-row .cat-btn .cat-count,
html body #filter-row .cat-btn .sec-sub,
html body #filter-row .cat-btn .kht-browser-tab-count,
body.tool-rhino #filter-row .cat-btn .cat-count,
body.tool-rhino #filter-row .cat-btn .sec-sub,
body.tool-grasshopper #filter-row .cat-btn .cat-count,
body.tool-grasshopper #filter-row .cat-btn .sec-sub,
body.tool-keyshot .kht-browser-tabs .kht-browser-tab small,
body.tool-keyshot .kht-browser-tabs .kht-browser-tab .kht-browser-tab-count,
html body #items-list .item-card .item-sub,
html body #items-list .item-card small,
html body .area-card p,
html body .category-card p,
html body .tool-card p,
html body .workflow-card p {
  font-family: var(--font-fine, "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif) !important;
  font-weight: 400 !important;
  letter-spacing: .005em !important;
}

/* Area-Landingpages ohne Suchleiste (create/make/care/sell/show/explore):
   Hero wird direkt vom Grid gefolgt, ohne den Abstand, den vorher der
   Suchblock beigetragen hat. Ersetzt diesen Abstand plus etwas mehr Luft. */
html body .page-hero + .area-grid.main-grid,
html body .page-hero + .create-section {
  margin-top: clamp(96px, 10vw, 160px) !important;
}