/* ============================================================
   WAGNER OS — style.css
   Brand palette: Ink (#1B2240), Amber (#FFB547), Paper (#FAF6EE)
   Font: JetBrains Mono (display) + Inter (body)
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ── Design Tokens ───────────────────────────────────────── */
:root {
  /* Brand Colors */
  --ink:          #1B2240;
  --ink-deep:     #131929;
  --ink-mid:      #232d52;
  --ink-light:    #2e3b68;
  --amber:        #FFB547;
  --amber-dark:   #e09a2e;
  --amber-glow:   rgba(255, 181, 71, 0.12);
  --amber-border: rgba(255, 181, 71, 0.25);
  --paper:        #FAF6EE;
  --paper-warm:   #F5EFE4;
  --paper-mid:    #EDE5D8;

  /* Semantic Surfaces */
  --color-bg:           var(--paper);
  --color-surface:      #FFFFFF;
  --color-surface-off:  var(--paper-warm);
  --color-dark:         var(--ink);
  --color-dark-surface: var(--ink-mid);
  --color-text:         var(--ink);
  --color-text-muted:   #5a6280;
  --color-text-faint:   #9aa0b8;
  --color-text-on-dark: var(--paper);
  --color-text-muted-dark: rgba(250,246,238,0.6);
  --color-accent:       var(--amber);
  --color-accent-dark:  var(--amber-dark);
  --color-border:       rgba(27,34,64,0.12);
  --color-border-dark:  rgba(255,181,71,0.18);

  /* Typography */
  --font-display: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  /* Type scale */
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-hero: clamp(2.5rem, 1rem + 4vw, 5rem);

  /* Spacing */
  --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 */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(27,34,64,0.08);
  --shadow-md:  0 4px 16px rgba(27,34,64,0.10);
  --shadow-lg:  0 12px 40px rgba(27,34,64,0.14);
  --shadow-ink: 0 8px 32px rgba(27,34,64,0.30);

  /* Transitions */
  --ease:       cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast:     150ms var(--ease);
  --t-med:      250ms var(--ease);
  --t-slow:     400ms var(--ease);

  /* Layout */
  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1200px;
  --nav-height:      68px;
}

/* ── Base Reset ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
}
img, svg { display: block; max-width: 100%; }
h1,h2,h3,h4,h5 { text-wrap: balance; line-height: 1.15; }
p, li { text-wrap: pretty; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
a { color: inherit; }
::selection { background: var(--amber-glow); }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: var(--radius-sm); }

/* ── Utility Classes ─────────────────────────────────────── */
.container {
  width: min(var(--content-wide), 100% - var(--space-8));
  margin-inline: auto;
}
.container--narrow {
  width: min(var(--content-default), 100% - var(--space-8));
  margin-inline: auto;
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}
.section-label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1.5px;
  background: var(--amber);
  flex-shrink: 0;
}
.amber { color: var(--amber); }

/* ── NAVIGATION ──────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: rgba(27,34,64,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-dark);
  transition: background var(--t-med);
}
.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.nav__logo img {
  height: 32px;
  width: auto;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.nav__links a {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: rgba(250,246,238,0.75);
  transition: color var(--t-fast);
}
.nav__links a:hover { color: var(--amber); }
.nav__cta {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  background: var(--amber);
  color: var(--ink);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: background var(--t-fast), transform var(--t-fast);
}
.nav__cta:hover { background: var(--amber-dark); transform: translateY(-1px); }

/* Mobile nav toggle */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--paper);
  border-radius: 2px;
  transition: transform var(--t-med), opacity var(--t-med);
}

/* Mobile nav drawer */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0; bottom: 0;
  background: var(--ink-deep);
  z-index: 99;
  padding: var(--space-8);
  flex-direction: column;
  gap: var(--space-6);
  overflow-y: auto;
}
.nav__mobile.is-open { display: flex; }
.nav__mobile a {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--paper);
  text-decoration: none;
  padding-block: var(--space-3);
  border-bottom: 1px solid rgba(255,181,71,0.12);
  transition: color var(--t-fast);
}
.nav__mobile a:hover { color: var(--amber); }
.nav__mobile .nav__cta {
  text-align: center;
  margin-top: var(--space-4);
}

/* ── HERO ────────────────────────────────────────────────── */
.hero {
  padding-top: calc(var(--nav-height) + clamp(var(--space-16), 8vw, var(--space-32)));
  padding-bottom: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--ink);
  position: relative;
  overflow: hidden;
}
/* Grid bg texture */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,181,71,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,181,71,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--ink) 80%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.hero__label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.hero__label::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1.5px;
  background: var(--amber);
}
.hero__headline {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  color: var(--paper);
  line-height: 1.05;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}
.hero__headline .slash { color: var(--amber); }
.hero__sub {
  font-size: var(--text-lg);
  font-weight: 300;
  color: rgba(250,246,238,0.8);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  max-width: 52ch;
}
.hero__support {
  font-size: var(--text-base);
  color: rgba(250,246,238,0.5);
  line-height: 1.7;
  max-width: 52ch;
  margin-bottom: var(--space-10);
}
.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  border: 1.5px solid transparent;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.btn--primary {
  background: var(--amber);
  color: var(--ink);
  border-color: var(--amber);
}
.btn--primary:hover { background: var(--amber-dark); border-color: var(--amber-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(255,181,71,0.3); }
.btn--outline {
  background: transparent;
  color: var(--paper);
  border-color: rgba(250,246,238,0.3);
}
.btn--outline:hover { border-color: var(--amber); color: var(--amber); transform: translateY(-1px); }
.btn--outline-ink {
  background: transparent;
  color: var(--ink);
  border-color: rgba(27,34,64,0.3);
}
.btn--outline-ink:hover { border-color: var(--ink); background: var(--ink); color: var(--paper); transform: translateY(-1px); }

/* ── Hero Diagram ────────────────────────────────────────── */
.hero__diagram {
  position: relative;
}
.diagram {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.diagram__node {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.diagram__box {
  background: rgba(255,181,71,0.06);
  border: 1px solid var(--amber-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: background var(--t-med), border-color var(--t-med);
}
.diagram__box:hover { background: rgba(255,181,71,0.10); border-color: rgba(255,181,71,0.4); }
.diagram__box--accent {
  background: rgba(255,181,71,0.12);
  border-color: rgba(255,181,71,0.5);
}
.diagram__icon {
  width: 32px;
  height: 32px;
  background: var(--amber-glow);
  border: 1px solid var(--amber-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--amber);
  font-size: 14px;
}
.diagram__label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--paper);
  letter-spacing: 0.04em;
}
.diagram__sublabel {
  font-size: var(--text-xs);
  color: rgba(250,246,238,0.45);
  margin-top: 1px;
}
.diagram__arrow {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-left: calc(var(--space-4) + 16px + var(--space-4));
}
.diagram__arrow-line {
  width: 1.5px;
  height: 20px;
  background: linear-gradient(to bottom, var(--amber-border), transparent);
  margin-left: var(--space-3);
}
.diagram__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.diagram__chip {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: rgba(250,246,238,0.5);
  border: 1px solid rgba(255,181,71,0.12);
  border-radius: var(--radius-full);
  padding: 2px var(--space-3);
}

/* ── SECTIONS — base ─────────────────────────────────────── */
.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}
.section--dark {
  background: var(--ink);
  color: var(--paper);
}
.section--dark-2 {
  background: var(--ink-deep);
  color: var(--paper);
}
.section--offset {
  background: var(--paper-warm);
}
.section__header {
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}
.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-5);
}
.section__body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.7;
}
.section--dark .section__body,
.section--dark-2 .section__body { color: var(--color-text-muted-dark); }

/* ── WHAT IT IS ──────────────────────────────────────────── */
.what__intro {
  font-size: var(--text-lg);
  font-weight: 300;
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 68ch;
  margin-bottom: var(--space-12);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--t-med), transform var(--t-med), border-color var(--t-med);
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(27,34,64,0.22);
}
.feature-card__icon {
  width: 44px; height: 44px;
  background: var(--amber-glow);
  border: 1px solid var(--amber-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber-dark);
  margin-bottom: var(--space-5);
}
.feature-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-3);
  color: var(--ink);
}
.feature-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── WHO IT SERVES ───────────────────────────────────────── */
.serves-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-5);
}
.serve-card {
  background: rgba(255,181,71,0.04);
  border: 1px solid rgba(255,181,71,0.14);
  border-radius: var(--radius-xl);
  padding: var(--space-7, 1.75rem);
  transition: background var(--t-med), border-color var(--t-med);
}
.serve-card:hover { background: rgba(255,181,71,0.08); border-color: rgba(255,181,71,0.28); }
.serve-card__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--amber);
  margin-bottom: var(--space-3);
}
.serve-card__text {
  font-size: var(--text-sm);
  color: rgba(250,246,238,0.65);
  line-height: 1.7;
}

/* ── SERVICES ────────────────────────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-6);
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: box-shadow var(--t-med), transform var(--t-med);
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.service-card__num {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--amber-dark);
  margin-bottom: var(--space-3);
}
.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin-bottom: var(--space-4);
}
.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  line-height: 1.7;
}
.service-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.service-card__list li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}
.service-card__list li::before {
  content: '—';
  color: var(--amber);
  font-family: var(--font-display);
  flex-shrink: 0;
}
/* Tag chips under services */
.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}
.tag {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--amber-dark);
  background: rgba(255,181,71,0.08);
  border: 1px solid rgba(255,181,71,0.18);
  border-radius: var(--radius-full);
  padding: 2px var(--space-3);
}

/* ── METHOD ──────────────────────────────────────────────── */
.method-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-10);
}
.method-step {
  background: rgba(255,181,71,0.04);
  border: 1px solid rgba(255,181,71,0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-6) var(--space-7);
  position: relative;
  transition: background var(--t-med), border-color var(--t-med);
}
.method-step:hover { background: rgba(255,181,71,0.07); border-color: rgba(255,181,71,0.25); }
.method-step__num {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 700;
  color: rgba(255,181,71,0.12);
  line-height: 1;
  margin-bottom: var(--space-3);
  letter-spacing: -0.04em;
}
.method-step__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--amber);
  margin-bottom: var(--space-3);
}
.method-step__text {
  font-size: var(--text-sm);
  color: rgba(250,246,238,0.6);
  line-height: 1.7;
}

/* ── USE CASES ───────────────────────────────────────────── */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
}
.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-7);
  transition: box-shadow var(--t-med), transform var(--t-med);
}
.case-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.case-card__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: var(--space-3);
}
.case-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── VENTURES ────────────────────────────────────────────── */
.ventures-intro {
  font-size: var(--text-base);
  color: rgba(250,246,238,0.65);
  max-width: 60ch;
  line-height: 1.7;
  margin-bottom: var(--space-12);
}
.ventures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
}
.venture-card {
  border: 1px solid rgba(255,181,71,0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-6) var(--space-7);
  background: rgba(255,255,255,0.02);
  transition: background var(--t-med), border-color var(--t-med);
}
.venture-card:hover { background: rgba(255,181,71,0.05); border-color: rgba(255,181,71,0.25); }
.venture-card__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--amber);
  margin-bottom: var(--space-3);
}
.venture-card__text {
  font-size: var(--text-sm);
  color: rgba(250,246,238,0.55);
  line-height: 1.7;
}
.ventures-note {
  margin-top: var(--space-10);
  padding: var(--space-5) var(--space-6);
  background: rgba(255,181,71,0.06);
  border: 1px solid rgba(255,181,71,0.18);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: rgba(250,246,238,0.6);
  max-width: 72ch;
  line-height: 1.7;
}
.ventures-note strong { color: var(--amber); }

/* ── TRUST ───────────────────────────────────────────────── */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-10);
}
.trust-card {
  padding: var(--space-7) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  transition: box-shadow var(--t-med), border-color var(--t-med);
}
.trust-card:hover { box-shadow: var(--shadow-sm); border-color: rgba(27,34,64,0.22); }
.trust-card__icon {
  width: 40px; height: 40px;
  background: rgba(27,34,64,0.06);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  margin-bottom: var(--space-4);
}
.trust-card__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin-bottom: var(--space-3);
}
.trust-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ── ENGAGEMENT ──────────────────────────────────────────── */
.engagement-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}
.engagement-card {
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  background: rgba(255,255,255,0.02);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  transition: border-color var(--t-med), background var(--t-med);
}
.engagement-card:hover { border-color: rgba(255,181,71,0.35); background: rgba(255,181,71,0.04); }
.engagement-card--featured {
  border-color: rgba(255,181,71,0.35);
  background: rgba(255,181,71,0.06);
}
.engagement-card__tag {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid rgba(255,181,71,0.25);
  border-radius: var(--radius-full);
  padding: 3px var(--space-3);
  align-self: flex-start;
}
.engagement-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.engagement-card__best {
  font-size: var(--text-xs);
  color: rgba(250,246,238,0.5);
  font-style: italic;
}
.engagement-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.engagement-card__list li {
  font-size: var(--text-sm);
  color: rgba(250,246,238,0.7);
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  line-height: 1.5;
}
.engagement-card__list li::before {
  content: '↗';
  color: var(--amber);
  font-family: var(--font-display);
  font-size: 11px;
  flex-shrink: 0;
}

/* ── FOUNDER NOTE ────────────────────────────────────────── */
.founder {
  background: var(--paper-warm);
}
.founder__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-16);
  align-items: start;
}
.founder__aside {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-8));
}
.founder__logo {
  margin-bottom: var(--space-6);
}
.founder__logo img {
  height: 48px;
  width: auto;
}
.founder__meta {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.founder__meta strong { color: var(--ink); display: block; font-size: var(--text-sm); letter-spacing: 0.06em; margin-top: var(--space-2); }
.founder__content { }
.founder__quote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-8);
}
.founder__body p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-5);
  max-width: 64ch;
}
.founder__sig {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.04em;
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

/* ── CONTACT ─────────────────────────────────────────────── */
.contact {
  background: var(--ink);
  color: var(--paper);
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--space-16);
  align-items: start;
}
.contact__aside h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-5);
}
.contact__aside p {
  font-size: var(--text-base);
  color: rgba(250,246,238,0.6);
  line-height: 1.7;
  max-width: 40ch;
}

/* Form */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.form__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.form__label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(250,246,238,0.55);
}
.form__input,
.form__select,
.form__textarea {
  background: rgba(255,255,255,0.04);
  border: 1.5px solid rgba(255,181,71,0.15);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--paper);
  transition: border-color var(--t-fast), background var(--t-fast);
  width: 100%;
}
.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--amber);
  background: rgba(255,181,71,0.05);
}
.form__input::placeholder,
.form__textarea::placeholder { color: rgba(250,246,238,0.25); }
.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23FFB547' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
  cursor: pointer;
}
.form__select option { background: var(--ink); }
.form__textarea { resize: vertical; min-height: 100px; line-height: 1.6; }

/* Checkbox group */
.form__checks {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-2);
}
.form__check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: rgba(250,246,238,0.7);
}
.form__check input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--amber);
  cursor: pointer;
}
.form__submit {
  margin-top: var(--space-2);
}

/* ── FOOTER ──────────────────────────────────────────────── */
.footer {
  background: var(--ink-deep);
  border-top: 1px solid rgba(255,181,71,0.1);
  padding-block: var(--space-12);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: start;
  margin-bottom: var(--space-10);
}
.footer__brand img { height: 36px; width: auto; margin-bottom: var(--space-4); }
.footer__tagline {
  font-size: var(--text-sm);
  color: rgba(250,246,238,0.5);
  max-width: 36ch;
  line-height: 1.6;
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  list-style: none;
}
.footer__links a {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: rgba(250,246,238,0.5);
  text-decoration: none;
  transition: color var(--t-fast);
}
.footer__links a:hover { color: var(--amber); }
.footer__bottom {
  border-top: 1px solid rgba(255,181,71,0.08);
  padding-top: var(--space-6);
  font-size: var(--text-xs);
  color: rgba(250,246,238,0.3);
  line-height: 1.7;
  max-width: 80ch;
}

/* ── SCROLL REVEAL ───────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal-delay="1"] { transition-delay: 0.1s; }
[data-reveal-delay="2"] { transition-delay: 0.2s; }
[data-reveal-delay="3"] { transition-delay: 0.3s; }
[data-reveal-delay="4"] { transition-delay: 0.4s; }
[data-reveal-delay="5"] { transition-delay: 0.5s; }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__diagram { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .engagement-grid { grid-template-columns: 1fr; }
  .founder__inner { grid-template-columns: 1fr; }
  .founder__aside { position: static; }
  .contact__grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .nav__links, .nav__cta { display: none; }
  .nav__hamburger { display: flex; }
  .serves-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .ventures-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .method-steps { grid-template-columns: 1fr; }
}

/* ── Scroll reveal ──────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ── Sticky nav shadow ───────────────────────────────────────── */
.site-nav.is-scrolled {
  box-shadow: 0 2px 16px rgba(0,0,0,0.25);
}

/* ── Active nav link ─────────────────────────────────────────── */
.nav__links a.is-active,
.nav__mobile a.is-active {
  color: var(--amber);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}