/* ============================================
   ORKYN — Design tokens
   ============================================ */
:root {
  /* Type scale (fluid) */
  --text-xs: clamp(0.75rem, 0.71rem + 0.2vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.28vw, 1rem);
  --text-base: clamp(1rem, 0.94rem + 0.28vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.65vw, 1.375rem);
  --text-xl: clamp(1.375rem, 1.15rem + 1.1vw, 2rem);
  --text-2xl: clamp(1.875rem, 1.35rem + 2.2vw, 3rem);
  --text-3xl: clamp(2.25rem, 1.2rem + 3.6vw, 4.25rem);
  --text-hero: clamp(2.75rem, 1rem + 5.5vw, 5.75rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --content-narrow: 640px;
  --content-default: 980px;
  --content-wide: 1240px;
  --content-full: 100%;

  /* Brand fonts */
  --font-display: 'Manrope', 'Helvetica Neue', sans-serif;
  --font-body: 'Hanken Grotesk', 'Helvetica Neue', sans-serif;

  /* Brand palette (fixed identity — matches the official logo assets) */
  --brand-amber: #fe9401;
  --brand-cyan: #00b6e0;
  --brand-purple: #5114e9;
  --brand-purple-light: #895ff0;
  --brand-green: #22c55e;
  --brand-dark: #1a1f2b;
  --brand-light: #f5f7fa;
}

/* DARK — default theme (Orkyn's core brand expression) */
:root,
[data-theme='dark'] {
  --color-bg: #1a1f2b;
  --color-surface: #20263a;
  --color-surface-2: #262d42;
  --color-surface-offset: #171b26;
  --color-surface-offset-2: #12151f;
  --color-divider: rgba(245, 247, 250, 0.08);
  --color-border: rgba(245, 247, 250, 0.12);

  --color-text: #f5f7fa;
  --color-text-muted: #a9b1c3;
  --color-text-faint: #858d9f;
  --color-text-inverse: #1a1f2b;

  --color-primary: #fe9401;
  --color-primary-hover: #fea52a;
  --color-primary-active: #e58501;
  --color-on-primary: #1a1f2b;

  --color-cyan: #00b6e0;
  --color-purple: #895ff0;
  --color-green: #22c55e;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.45);
}

/* LIGHT theme */
[data-theme='light'] {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-surface-2: #ffffff;
  --color-surface-offset: #eceff4;
  --color-surface-offset-2: #e3e7ee;
  --color-divider: rgba(26, 31, 43, 0.08);
  --color-border: rgba(26, 31, 43, 0.12);

  --color-text: #1a1f2b;
  --color-text-muted: #4b5566;
  --color-text-faint: #5d677a;
  --color-text-inverse: #f5f7fa;

  --color-primary: #5114e9;
  --color-primary-hover: #4a12d4;
  --color-primary-active: #4311c1;
  --color-on-primary: #ffffff;

  --color-cyan: #0087a6;
  --color-purple: #5114e9;
  --color-green: #16803e;

  --shadow-sm: 0 1px 2px rgba(26, 31, 43, 0.06);
  --shadow-md: 0 8px 24px rgba(26, 31, 43, 0.08);
  --shadow-lg: 0 20px 48px rgba(26, 31, 43, 0.12);
}

/* ============================================
   Layout primitives
   ============================================ */
.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-10));
}

.section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
  position: relative;
}
.section--tight {
  padding-block: clamp(var(--space-10), 6vw, var(--space-20));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.section-index {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  letter-spacing: 0.05em;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

p {
  color: var(--color-text-muted);
  max-width: 62ch;
}

.lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-full);
  white-space: nowrap;
  min-height: 48px;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface-offset);
  border-color: var(--color-text-faint);
}
.btn-icon {
  transition: transform var(--transition-interactive);
}
.btn:hover .btn-icon {
  transform: translate(2px, -2px);
}

/* ============================================
   Header
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    transform 0.35s var(--ease-out),
    box-shadow 0.35s var(--ease-out);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

/* Official logo lockup (icon + wordmark + tagline), swapped per theme:
   the source only ships an opaque-black wordmark, so a second copy is
   pre-recolored for dark surfaces (see assets/logo-lockup-dark.png). */
.brand-lockup {
  height: 32px;
  width: auto;
  display: block;
}
.brand-lockup--light {
  display: none;
}
[data-theme='light'] .brand-lockup--dark {
  display: none;
}
[data-theme='light'] .brand-lockup--light {
  display: block;
}
.brand-word {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand-word .name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--color-text);
}
.brand-word .tag {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.55rem;
  letter-spacing: 0.16em;
  /* Lightened for WCAG AA text contrast (raw --color-purple is tuned for
     icons/borders at 3:1, not small text at 4.5:1). */
  color: color-mix(in oklab, var(--color-purple) 82%, white);
  text-transform: uppercase;
  margin-top: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-links a {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-block: var(--space-2);
  border-bottom: 2px solid transparent;
}
.nav-links a:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-text-faint);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding-inline: var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  transition: color var(--transition-interactive), border-color var(--transition-interactive);
}
.lang-switch:hover {
  color: var(--color-text);
  border-color: var(--color-text-faint);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-text);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  padding-block: clamp(var(--space-16), 12vw, var(--space-32)) clamp(var(--space-12), 8vw, var(--space-24));
  overflow: clip;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(var(--space-10), 5vw, var(--space-20));
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.hero-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-green) 25%, transparent);
}
.hero h1 {
  font-size: var(--text-hero);
  line-height: 1.03;
  margin-bottom: var(--space-6);
}
.hero h1 .accent {
  color: var(--color-primary);
}
.hero .lede {
  margin-bottom: var(--space-8);
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}
.hero-trust {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: var(--space-8);
}
.hero-trust-item {
  border-left: none;
  padding-left: 0;
}
.hero-trust-item .num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  color: var(--color-text);
  display: block;
}
.hero-trust-item span.label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3.1;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-visual-caption {
  position: absolute;
  left: var(--space-5);
  right: var(--space-5);
  bottom: var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-4);
}
.hero-visual-tag {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #f5f7fa;
  background: rgba(26, 31, 43, 0.55);
  backdrop-filter: blur(6px);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
}

/* ============================================
   Marquee strip (four value pillars)
   ============================================ */
.pillars {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface-offset);
}
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.pillar {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: clamp(var(--space-6), 3vw, var(--space-8)) clamp(var(--space-4), 3vw, var(--space-8));
  border-left: 1px solid var(--color-divider);
}
.pillar:first-child {
  border-left: none;
}
.pillar-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--pillar-color, var(--color-primary));
}
.pillar h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-1);
}
.pillar p {
  font-size: var(--text-xs);
  margin: 0;
}

/* ============================================
   Section headers
   ============================================ */
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: var(--space-10);
  align-items: end;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}
.section-head h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-3);
}
.section-kicker {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

/* ============================================
   How it works — process rail
   ============================================ */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-divider);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.process-step {
  background: var(--color-surface);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.process-step .step-no {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.process-step .step-icon {
  width: 30px;
  height: 30px;
  color: var(--step-color, var(--color-primary));
}
.process-step h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
}
.process-step p {
  font-size: var(--text-sm);
  margin: 0;
}

/* ============================================
   Privacy / architecture split
   ============================================ */
.privacy {
  background: var(--color-surface-offset);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-16));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(var(--space-10), 5vw, var(--space-16));
  align-items: center;
}
.privacy-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-8);
}
.privacy-item {
  display: flex;
  gap: var(--space-4);
}
.privacy-item .check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--color-green);
  margin-top: 2px;
}
.privacy-item h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: 2px;
}
.privacy-item p {
  font-size: var(--text-sm);
  margin: 0;
}
.privacy-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3.4;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}
.privacy-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================
   Capabilities — asymmetric feature list
   ============================================ */
.capabilities {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-5);
}
.cap-card {
  grid-column: span 3;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.cap-card--wide {
  grid-column: span 6;
  flex-direction: row;
  align-items: center;
  gap: var(--space-10);
}
.cap-card--wide .cap-copy {
  flex: 1;
}
.cap-card--wide .cap-stat {
  flex-shrink: 0;
  text-align: right;
}
.cap-stat .big {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-2xl);
  color: var(--color-primary);
  display: block;
  line-height: 1;
}
.cap-stat .small {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.cap-card .cap-no {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.cap-icon {
  width: 26px;
  height: 26px;
  color: var(--cap-color, var(--color-primary));
}
.cap-card h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
}
.cap-card p {
  font-size: var(--text-sm);
  margin: 0;
}

/* ============================================
   Industries
   ============================================ */
.industries {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.industry-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: clamp(var(--space-6), 3vw, var(--space-7));
  display: flex;
  flex-direction: column;
  min-height: 260px;
  box-shadow: inset 0 2px 0 0 color-mix(in oklab, var(--ind-color, var(--color-border)) 45%, transparent);
}
.industry-card .ind-no {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-8);
}
.industry-card .ind-name {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  /* Lightened for WCAG AA text contrast — see .brand-word .tag */
  color: color-mix(in oklab, var(--ind-color, var(--color-primary)) 82%, white);
  margin-bottom: var(--space-2);
}
.industry-card h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: var(--space-3);
}
.industry-card p {
  font-size: var(--text-sm);
  margin: 0 0 var(--space-4);
  flex: 1;
}
.industry-card .ind-link {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* ============================================
   Direct answer block
   ============================================ */
.answer {
  background: var(--color-surface-offset);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-8), 5vw, var(--space-14));
}
.answer h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.answer p {
  font-size: var(--text-lg);
  max-width: 76ch;
  color: var(--color-text);
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  max-width: var(--content-default);
}
.faq-item {
  border-bottom: 1px solid var(--color-divider);
}
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-block: var(--space-6);
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--color-text);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item .faq-no {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  flex-shrink: 0;
}
.faq-item .faq-q {
  flex: 1;
}
.faq-item .faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--color-text-faint);
  transition: transform var(--transition-interactive);
}
.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}
.faq-item .faq-a {
  padding-bottom: var(--space-6);
  padding-left: calc(var(--space-6) + 1.8rem);
  font-size: var(--text-sm);
  max-width: 68ch;
}

/* ============================================
   Final CTA
   ============================================ */
.cta-band {
  background: var(--color-surface-offset-2, var(--color-surface-offset));
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-10), 6vw, var(--space-20));
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: var(--space-10);
  align-items: center;
}
.cta-band h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.cta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}
.cta-tag {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-4);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: clamp(var(--space-10), 5vw, var(--space-16));
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, 0.8fr));
  gap: var(--space-10);
}
.footer-brand p {
  font-size: var(--text-sm);
  margin-top: var(--space-4);
  max-width: 34ch;
}
.footer-col h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.footer-col a:hover {
  color: var(--color-text);
}
.footer-bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-bottom .obtelco {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1000px) {
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-actions .btn-primary {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: -1;
  }
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pillar:nth-child(3) {
    border-left: none;
  }
  .pillar:nth-child(3),
  .pillar:nth-child(4) {
    border-top: 1px solid var(--color-divider);
  }
  .section-head {
    grid-template-columns: 1fr;
  }
  .process {
    grid-template-columns: repeat(2, 1fr);
  }
  .privacy {
    grid-template-columns: 1fr;
  }
  .privacy-visual {
    order: -1;
  }
  .capabilities {
    grid-template-columns: repeat(2, 1fr);
  }
  .cap-card {
    grid-column: span 1;
  }
  .cap-card--wide {
    grid-column: span 2;
  }
  .industries {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-band {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

@media (max-width: 640px) {
  .process {
    grid-template-columns: 1fr;
  }
  .process-step {
    border-bottom: 1px solid var(--color-divider);
  }
  .cap-card--wide {
    flex-direction: column;
    align-items: flex-start;
  }
  .cap-card--wide .cap-stat {
    text-align: left;
  }
  .industries {
    grid-template-columns: 1fr;
  }
  .hero-trust {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
  }
}

/* Mobile nav drawer */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
}
.mobile-nav[data-open='true'] {
  transform: translateX(0);
}
.mobile-nav-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-10);
}
.mobile-nav-close {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}
.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.mobile-nav-links a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-xl);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}
.mobile-nav-cta {
  margin-top: auto;
}

@media (min-width: 1001px) {
  .mobile-nav {
    display: none;
  }
}

/* Reveal-on-scroll (progressive enhancement) */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.6s var(--ease-out),
    transform 0.6s var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Grouped reveal — staggers each direct child instead of moving as one flat block */
[data-reveal-group] > * {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.5s var(--ease-out),
    transform 0.5s var(--ease-out);
}
[data-reveal-group].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-group].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-group].is-visible > *:nth-child(2) { transition-delay: 60ms; }
[data-reveal-group].is-visible > *:nth-child(3) { transition-delay: 120ms; }
[data-reveal-group].is-visible > *:nth-child(4) { transition-delay: 180ms; }
[data-reveal-group].is-visible > *:nth-child(5) { transition-delay: 240ms; }
[data-reveal-group].is-visible > *:nth-child(6) { transition-delay: 300ms; }

/* Card interactivity — feedback tier: subtle, gated to real pointers */
@media (hover: hover) and (pointer: fine) {
  .cap-card,
  .industry-card {
    transition:
      transform var(--transition-interactive),
      border-color var(--transition-interactive),
      box-shadow var(--transition-interactive);
  }
  .cap-card:hover,
  .industry-card:hover {
    transform: translateY(-4px);
  }
  .cap-card:hover { border-color: var(--cap-color, var(--color-border)); box-shadow: var(--shadow-md); }
  .industry-card:hover {
    border-color: var(--ind-color);
    box-shadow: inset 0 2px 0 0 var(--ind-color), var(--shadow-md);
  }

  .process-step,
  .pillar {
    transition: background var(--transition-interactive);
  }
  .process-step:hover,
  .pillar:hover {
    background: var(--color-surface-2);
  }
  .step-icon,
  .pillar-icon,
  .cap-icon {
    transition: transform var(--transition-interactive);
  }
  .process-step:hover .step-icon,
  .pillar:hover .pillar-icon,
  .cap-card:hover .cap-icon {
    transform: translateY(-2px);
  }

  .ind-link { transition: color var(--transition-interactive), gap var(--transition-interactive); }
  .ind-link .btn-icon,
  .ind-link span[aria-hidden] { transition: transform var(--transition-interactive); }
  .industry-card:hover .ind-link { color: color-mix(in oklab, var(--ind-color) 82%, white); gap: var(--space-2); }
  .industry-card:hover .ind-link span[aria-hidden] { transform: translate(2px, -2px); }
}

/* ============================================
   Obtelco Skills band
   ============================================ */
.obtelco-band {
  background: var(--color-surface-offset-2);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.obtelco-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 620px;
  margin: 0 auto var(--space-16);
}
.obtelco-header h2 { margin-bottom: var(--space-4); }
.obtelco-kicker {
  justify-content: center;
  margin-bottom: var(--space-4);
}
.obtelco-lede { margin-top: var(--space-4); }
.obtelco-inline-link {
  /* Theme-aware (not --brand-amber): amber is a fixed identity color tuned
     for icons on dark surfaces, and reads at ~1.8:1 on the light theme's
     light-gray surfaces, failing WCAG AA. */
  color: var(--color-primary);
  font-weight: 600;
  text-decoration-color: color-mix(in oklab, var(--color-primary) 45%, transparent);
  text-underline-offset: 0.2em;
}
.obtelco-inline-link:hover { text-decoration-color: currentColor; }
.obtelco-logo-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.obtelco-logo-pill .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-amber);
  box-shadow: 0 0 6px var(--brand-amber);
}
.obtelco-skills-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-6);
}
.skill-card {
  grid-column: span 4;
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
}
.skill-card--wide { grid-column: span 7; }
.skill-card--compact { grid-column: span 5; }
.skill-card--full {
  grid-column: 3 / span 8;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-5);
}
.skill-card--full .skill-icon-wrap {
  grid-row: 1 / span 3;
  margin-bottom: 0;
}
.skill-card--full .skill-num { display: none; }
.skill-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--sk-color, var(--brand-amber)) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--sk-color, var(--brand-amber));
}
.skill-icon-wrap svg {
  width: 22px;
  height: 22px;
}
.skill-num {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: color-mix(in oklab, var(--sk-color, var(--brand-amber)) 10%, transparent);
  pointer-events: none;
  user-select: none;
}
.skill-card h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}
.skill-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin: 0;
}
.skill-tag {
  display: inline-block;
  margin-top: var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  /* Lightened for WCAG AA text contrast — see .brand-word .tag */
  color: color-mix(in oklab, var(--sk-color, var(--brand-amber)) 82%, white);
}
.obtelco-cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-12);
  flex-wrap: wrap;
}

@media (hover: hover) and (pointer: fine) {
  .skill-card {
    transition:
      border-color var(--transition-interactive),
      transform var(--transition-interactive),
      box-shadow var(--transition-interactive);
  }
  .skill-card:hover {
    border-color: var(--sk-color, var(--brand-amber));
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
  }
}

@media (max-width: 900px) {
  .obtelco-skills-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skill-card,
  .skill-card--wide,
  .skill-card--compact,
  .skill-card--full { grid-column: auto; }
  .skill-card--full { display: block; }
  .skill-card--full .skill-icon-wrap { margin-bottom: var(--space-5); }
  .skill-card--full .skill-num { display: block; }
}
@media (max-width: 560px) {
  .obtelco-skills-grid { grid-template-columns: 1fr; }
  .obtelco-header { align-items: flex-start; text-align: left; }
  .obtelco-kicker { justify-content: flex-start; }
  .obtelco-cta-row { align-items: stretch; flex-direction: column; }
  .obtelco-cta-row .btn { justify-content: center; width: 100%; }
}

/* ============================================
   Diagram embeds
   ============================================ */
.diagram-frame {
  margin-top: var(--space-10);
  /* Fixed light surface, independent of theme: the diagrams are flat exports
     with dark navy labels drawn for a white background. Placing them on the
     app's dark surface makes that text unreadable (dark-on-dark). */
  background: #ffffff;
  border: 1px solid rgba(26, 31, 43, 0.08);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-5), 3vw, var(--space-8));
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.diagram-frame img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}
.diagram-frame--wide {
  padding: clamp(var(--space-4), 2.5vw, var(--space-6));
}

.diagram-detail {
  margin-top: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding-inline: var(--space-6);
}
.diagram-detail summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-5);
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
}
.diagram-detail summary::-webkit-details-marker { display: none; }
.diagram-detail summary .faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-text-faint);
  transition: transform var(--transition-interactive);
}
.diagram-detail[open] summary .faq-icon { transform: rotate(45deg); color: var(--color-primary); }
.diagram-detail .diagram-frame { margin-top: 0; margin-bottom: var(--space-6); box-shadow: none; }

/* ============================================
   Value proposition grid
   ============================================ */
.value-grid {
  margin-top: var(--space-10);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.value-item .value-icon {
  width: 28px;
  height: 28px;
  color: var(--v-color, var(--color-primary));
  margin-bottom: var(--space-4);
}
.value-item h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}
.value-item p {
  font-size: var(--text-sm);
  margin: 0;
}

/* ============================================
   Partners grid
   ============================================ */
.partners-grid {
  margin-top: var(--space-10);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.partner-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
}
.partner-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  color: var(--p-color, var(--color-primary));
}
.partner-name {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
}
@media (hover: hover) and (pointer: fine) {
  .partner-card {
    transition: border-color var(--transition-interactive), transform var(--transition-interactive);
  }
  .partner-card:hover {
    border-color: var(--p-color);
    transform: translateY(-2px);
  }
}
@media (max-width: 900px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .partners-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Pricing grid
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}
.pricing-grid .cap-card { grid-column: auto; }

@media (max-width: 900px) {
  .value-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .pricing-grid { grid-template-columns: 1fr; }
}