/* ==========================================================================
   Xchange House — Institutional Editorial Design System
   ========================================================================== */

/* --- Fonts ---------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500;9..144,600&family=Inter+Tight:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* --- Design Tokens -------------------------------------------------------- */
:root {
  /* Palette — warm institutional */
  --ink: #0e1a2b;
  --ink-soft: #1a2940;
  --ink-muted: #455569;
  --ink-faint: #6b7a8f;
  --bone: #f5f1ea;
  --bone-soft: #fbf8f3;
  --paper: #ffffff;
  --gold: #9a7b3f;
  --gold-deep: #7d6231;
  --gold-soft: #c9a968;
  --rule: #d9d2c5;
  --rule-soft: #e8e2d5;
  --alert: #8a2f2f;
  --success: #2f5d3e;

  /* Type */
  --font-display: 'Fraunces', 'Times New Roman', Georgia, serif;
  --font-body: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Scale */
  --step--2: clamp(0.69rem, 0.67rem + 0.10vw, 0.75rem);
  --step--1: clamp(0.83rem, 0.80rem + 0.19vw, 0.94rem);
  --step-0:  clamp(1.00rem, 0.95rem + 0.24vw, 1.13rem);
  --step-1:  clamp(1.20rem, 1.13rem + 0.34vw, 1.41rem);
  --step-2:  clamp(1.44rem, 1.34rem + 0.48vw, 1.76rem);
  --step-3:  clamp(1.73rem, 1.59rem + 0.69vw, 2.20rem);
  --step-4:  clamp(2.07rem, 1.88rem + 0.97vw, 2.75rem);
  --step-5:  clamp(2.49rem, 2.22rem + 1.35vw, 3.43rem);
  --step-6:  clamp(2.99rem, 2.61rem + 1.87vw, 4.29rem);

  /* Layout */
  --container: 1280px;
  --container-narrow: 960px;
  --container-text: 680px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-fast: 180ms;
  --dur: 320ms;
  --dur-slow: 640ms;
}

/* --- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul[role='list'], ol[role='list'] { list-style: none; padding: 0; margin: 0; }
img, picture, svg, video { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; padding: 0; }

/* --- Base ----------------------------------------------------------------- */
html { scroll-padding-top: 6rem; }
body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--ink);
  background: var(--bone-soft);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

::selection { background: var(--ink); color: var(--bone); }

/* --- Typography ----------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--ink);
  font-variation-settings: "opsz" 144, "SOFT" 30;
}

h1 { font-size: var(--step-6); line-height: 1.02; letter-spacing: -0.03em; }
h2 { font-size: var(--step-4); line-height: 1.1; letter-spacing: -0.02em; }
h3 { font-size: var(--step-2); line-height: 1.2; }
h4 { font-size: var(--step-1); line-height: 1.3; }

p { max-width: 68ch; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--rule);
  transition: text-decoration-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
a:hover { text-decoration-color: var(--gold); }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.eyebrow::before {
  content: "";
  width: 1.5rem;
  height: 1px;
  background: var(--gold);
  display: inline-block;
}
.eyebrow--plain::before { display: none; }

.lede {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--step-2);
  line-height: 1.35;
  color: var(--ink-soft);
  letter-spacing: -0.01em;
  max-width: 32ch;
}

.display-serif { font-family: var(--font-display); font-weight: 400; }
.small-caps {
  font-feature-settings: "smcp", "c2sc";
  letter-spacing: 0.08em;
}
.tabular { font-variant-numeric: tabular-nums; }

/* --- Layout primitives ---------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }
.container--text { max-width: var(--container-text); }

.stack > * + * { margin-top: var(--stack-space, 1.5rem); }
.stack-sm > * + * { margin-top: 0.75rem; }
.stack-lg > * + * { margin-top: 2.5rem; }
.stack-xl > * + * { margin-top: 4rem; }

.section { padding-block: clamp(4rem, 8vw, 7rem); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }

.rule {
  border: 0;
  height: 1px;
  background: var(--rule);
  margin: 0;
}

/* --- Top announcement bar ------------------------------------------------- */
.topbar {
  background: var(--ink);
  color: var(--bone);
  font-size: var(--step--2);
  letter-spacing: 0.04em;
}
.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.5rem;
  gap: 1rem;
}
.topbar__meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--bone);
  opacity: 0.85;
}
.topbar__meta span { display: inline-flex; align-items: center; gap: 0.4rem; }
.topbar__lang a {
  color: var(--bone);
  text-decoration: none;
  opacity: 0.6;
  padding-inline: 0.4rem;
  border-left: 1px solid rgba(245,241,234,0.2);
}
.topbar__lang a:first-child { border-left: 0; }
.topbar__lang a.active { opacity: 1; }
.topbar__lang a:hover { opacity: 1; }

@media (max-width: 640px) {
  .topbar__meta span:not(:first-child) { display: none; }
}

/* --- Header --------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(251, 248, 243, 0.92);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--rule);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}
.brand__mark {
  width: 2rem;
  height: 2rem;
  flex: none;
}
.brand__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
}
.brand__sub {
  font-family: var(--font-body);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 2px;
  line-height: 1;
}
.brand__text { display: flex; flex-direction: column; }

.primary-nav { display: flex; align-items: center; gap: 2rem; }
.primary-nav a {
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  position: relative;
  padding-block: 0.25rem;
}
.primary-nav a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -2px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.primary-nav a:hover::after,
.primary-nav a[aria-current="page"]::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 0.75rem; }

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--rule);
  color: var(--ink);
}
.nav-toggle svg { width: 1.1rem; height: 1.1rem; }

@media (max-width: 960px) {
  .primary-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn { padding: 0.55rem 1rem; font-size: var(--step--2); }
}

/* Mobile nav overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--bone-soft);
  z-index: 100;
  padding: 2rem var(--gutter);
  display: none;
  flex-direction: column;
}
.mobile-nav.open { display: flex; }
.mobile-nav__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rule);
}
.mobile-nav__list {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.mobile-nav__list a {
  display: block;
  padding: 1rem 0;
  font-family: var(--font-display);
  font-size: var(--step-3);
  text-decoration: none;
  border-bottom: 1px solid var(--rule-soft);
}

/* --- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.6rem;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--ink); color: var(--bone); border-color: var(--ink); }
.btn--primary:hover { background: var(--ink-soft); border-color: var(--ink-soft); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--bone); }
.btn--quiet { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn--quiet:hover { border-color: var(--ink); }
.btn--gold { background: var(--gold); color: var(--paper); border-color: var(--gold); }
.btn--gold:hover { background: var(--gold-deep); border-color: var(--gold-deep); }
.btn--sm { padding: 0.55rem 1rem; font-size: var(--step--2); }
.btn--lg { padding: 1.05rem 2rem; }
.btn__arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* --- Hero ----------------------------------------------------------------- */
.hero {
  position: relative;
  padding-block: clamp(4rem, 10vw, 8rem) clamp(3rem, 6vw, 5rem);
  background: var(--bone-soft);
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
}
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-variation-settings: "opsz" 144, "SOFT" 50;
}
.hero__title em {
  font-style: italic;
  font-weight: 300;
  color: var(--gold-deep);
}
.hero__lede {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 48ch;
  margin-top: 2rem;
  font-family: var(--font-body);
  font-weight: 400;
}
.hero__actions {
  margin-top: 2.5rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.hero__meta {
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.hero__meta dt {
  font-size: var(--step--2);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.3rem;
}
.hero__meta dd {
  font-family: var(--font-display);
  font-size: var(--step-1);
  color: var(--ink);
  margin: 0;
}

/* Hero background decoration */
.hero__decor {
  position: absolute;
  right: -8%;
  top: 10%;
  width: 50%;
  height: 80%;
  pointer-events: none;
  opacity: 0.06;
  background-image:
    linear-gradient(to right, var(--ink) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ink) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at 30% 50%, black 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 50%, black 10%, transparent 70%);
}

/* --- Trust strip ---------------------------------------------------------- */
.trust-strip {
  background: var(--ink);
  color: var(--bone);
  padding-block: 1.5rem;
}
.trust-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.trust-strip__label {
  font-size: var(--step--2);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-soft);
  flex: none;
}
.trust-strip__items {
  display: flex;
  gap: clamp(1.5rem, 4vw, 3rem);
  flex-wrap: wrap;
  align-items: center;
}
.trust-strip__item {
  font-family: var(--font-display);
  font-size: var(--step-0);
  color: var(--bone);
  font-weight: 400;
}
.trust-strip__item span {
  display: block;
  font-family: var(--font-body);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 0.2rem;
}

/* --- Services grid -------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
@media (max-width: 900px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .services-grid { grid-template-columns: 1fr; } }

.service-card {
  padding: 2.25rem 1.75rem 2.5rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  color: var(--ink);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 300px;
  transition: background var(--dur) var(--ease);
}
.service-card:nth-child(3n) { border-right: 0; }
@media (max-width: 900px) {
  .service-card { border-right: 1px solid var(--rule); }
  .service-card:nth-child(3n) { border-right: 1px solid var(--rule); }
  .service-card:nth-child(2n) { border-right: 0; }
}
@media (max-width: 620px) {
  .service-card { border-right: 0 !important; }
}
.service-card:hover { background: var(--paper); }
.service-card__num {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--ink-faint);
  letter-spacing: 0.1em;
}
.service-card__title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  margin-top: 1.25rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.service-card__desc {
  margin-top: 0.9rem;
  color: var(--ink-muted);
  font-size: var(--step--1);
  line-height: 1.55;
  flex: 1;
}
.service-card__cta {
  margin-top: 1.5rem;
  font-size: var(--step--2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}
.service-card__cta::after {
  content: "→";
  transition: transform var(--dur) var(--ease);
}
.service-card:hover .service-card__cta::after { transform: translateX(4px); }

/* --- Split feature -------------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }
.split--reversed > :first-child { order: 2; }
@media (max-width: 900px) { .split--reversed > :first-child { order: 0; } }

.split__visual {
  aspect-ratio: 4 / 5;
  background: var(--ink);
  color: var(--bone);
  padding: 2.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}
.split__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, rgba(201, 169, 104, 0.2), transparent 60%);
}
.split__visual > * { position: relative; }
.split__visual-label {
  font-size: var(--step--2);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-soft);
}
.split__visual-quote {
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.2;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--bone);
}
.split__visual-attr {
  font-size: var(--step--1);
  color: var(--ink-faint);
  border-top: 1px solid rgba(245, 241, 234, 0.2);
  padding-top: 1rem;
}

/* --- Process / numbered list --------------------------------------------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  counter-reset: process;
}
@media (max-width: 900px) { .process { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .process { grid-template-columns: 1fr; } }
.process__step {
  position: relative;
  padding-top: 3rem;
  border-top: 1px solid var(--ink);
  counter-increment: process;
}
.process__step::before {
  content: "0" counter(process);
  position: absolute;
  top: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  color: var(--gold);
}
.process__title {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}
.process__desc {
  color: var(--ink-muted);
  font-size: var(--step--1);
  line-height: 1.55;
}

/* --- Stats band ----------------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: var(--bone-soft);
  padding: 2rem 1.5rem;
  text-align: left;
}
.stat__value {
  font-family: var(--font-display);
  font-size: var(--step-5);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.stat__value sup {
  font-size: 0.5em;
  font-feature-settings: "sups";
  vertical-align: super;
  color: var(--gold);
}
.stat__label {
  margin-top: 0.9rem;
  font-size: var(--step--2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* --- Sector list ---------------------------------------------------------- */
.sectors {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
}
@media (max-width: 620px) { .sectors { grid-template-columns: 1fr; } }
.sector {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule);
  gap: 1rem;
}
.sector__name {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 400;
}
.sector__num {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--ink-faint);
}

/* --- Contact / CTA block -------------------------------------------------- */
.cta-block {
  background: var(--ink);
  color: var(--bone);
  padding: clamp(3rem, 6vw, 5rem);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}
@media (max-width: 820px) { .cta-block { grid-template-columns: 1fr; } }
.cta-block::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(circle at 80% 30%, rgba(201,169,104,0.18), transparent 60%);
}
.cta-block > * { position: relative; }
.cta-block h2 {
  color: var(--bone);
  font-size: var(--step-4);
  max-width: 14ch;
}
.cta-block h2 em {
  font-style: italic;
  font-weight: 300;
  color: var(--gold-soft);
}
.cta-block p {
  color: var(--ink-faint);
  margin-top: 1.25rem;
  max-width: 40ch;
}
.cta-block__meta {
  border-top: 1px solid rgba(245,241,234,0.15);
  padding-top: 1.5rem;
  display: grid;
  gap: 1.25rem;
}
.cta-block__meta dt {
  font-size: var(--step--2);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin-bottom: 0.3rem;
}
.cta-block__meta dd {
  font-family: var(--font-display);
  font-size: var(--step-1);
  color: var(--bone);
  margin: 0;
}
.cta-block__meta a { color: var(--bone); text-decoration-color: rgba(245,241,234,0.3); }
.cta-block__meta a:hover { text-decoration-color: var(--gold-soft); }

/* --- Forms ---------------------------------------------------------------- */
.form { display: grid; gap: 1.25rem; }
.field { display: grid; gap: 0.4rem; }
.field label {
  font-size: var(--step--2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
}
.field input,
.field select,
.field textarea {
  padding: 0.85rem 1rem;
  background: var(--paper);
  border: 1px solid var(--rule);
  font-family: var(--font-body);
  font-size: var(--step-0);
  color: var(--ink);
  transition: border-color var(--dur-fast) var(--ease);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 0;
  border-color: var(--ink);
}
.field textarea { min-height: 120px; resize: vertical; }
.field--row { grid-template-columns: 1fr 1fr; gap: 1rem; display: grid; }
@media (max-width: 540px) { .field--row { grid-template-columns: 1fr; } }
.field__hint { font-size: var(--step--2); color: var(--ink-faint); }
.field__error { font-size: var(--step--2); color: var(--alert); }

.checkbox {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: var(--step--1);
  color: var(--ink-soft);
}
.checkbox input { margin-top: 0.2rem; flex: none; }

.form-notice {
  padding: 1rem;
  font-size: var(--step--1);
  border-left: 3px solid var(--gold);
  background: var(--bone);
  color: var(--ink-soft);
}
.form-notice--error { border-color: var(--alert); color: var(--alert); }
.form-notice--success { border-color: var(--success); color: var(--success); }

/* --- Footer --------------------------------------------------------------- */
.site-footer {
  background: var(--ink);
  color: var(--bone);
  padding-block: 4rem 2rem;
  margin-top: 0;
}
.site-footer a { color: var(--bone); text-decoration: none; opacity: 0.75; }
.site-footer a:hover { opacity: 1; text-decoration: underline; text-decoration-color: var(--gold); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 3rem;
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand__name {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  color: var(--bone);
}
.footer-brand__desc {
  color: var(--ink-faint);
  font-size: var(--step--1);
  max-width: 36ch;
  margin-top: 1rem;
  line-height: 1.55;
}
.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--step--2);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--gold-soft);
  margin-bottom: 1.25rem;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.7rem; }
.footer-col a { font-size: var(--step--1); }

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(245, 241, 234, 0.15);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: var(--step--2);
  color: var(--ink-faint);
}
.footer-bottom .disclaimer {
  max-width: 90ch;
  line-height: 1.55;
  font-size: var(--step--2);
  color: var(--ink-faint);
  margin-top: 1rem;
  flex: 1 1 100%;
}

/* --- Breadcrumbs ---------------------------------------------------------- */
.breadcrumbs {
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--rule-soft);
}
.breadcrumbs a { text-decoration: none; color: var(--ink-muted); }
.breadcrumbs a:hover { color: var(--ink); }
.breadcrumbs span { margin: 0 0.6rem; color: var(--ink-faint); }
.breadcrumbs [aria-current="page"] { color: var(--ink); }

/* --- Page hero (interior pages) ------------------------------------------ */
.page-hero {
  padding-block: clamp(3.5rem, 7vw, 6rem) clamp(2.5rem, 5vw, 4rem);
  background: var(--bone-soft);
  border-bottom: 1px solid var(--rule);
}
.page-hero__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: end;
}
@media (max-width: 820px) { .page-hero__grid { grid-template-columns: 1fr; } }
.page-hero h1 {
  font-size: var(--step-5);
  letter-spacing: -0.025em;
  max-width: 18ch;
}
.page-hero__lede {
  font-size: var(--step-1);
  color: var(--ink-soft);
  max-width: 44ch;
  margin-top: 1.5rem;
}

/* --- Prose (for legal/content pages) ------------------------------------ */
.prose {
  max-width: var(--container-text);
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--ink-soft);
}
.prose > * + * { margin-top: 1.25rem; }
.prose h2 {
  font-size: var(--step-3);
  margin-top: 3rem;
  color: var(--ink);
}
.prose h3 {
  font-size: var(--step-2);
  margin-top: 2rem;
  color: var(--ink);
}
.prose ul, .prose ol { padding-left: 1.25rem; }
.prose li { margin-bottom: 0.5rem; }
.prose strong { color: var(--ink); font-weight: 500; }
.prose a { color: var(--ink); text-decoration-color: var(--gold); }

/* --- Feature list (detailed, for service pages) -------------------------- */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
}
.feature-item {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule);
}
.feature-item:last-child { border-bottom: 0; }
.feature-item__num {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--gold);
  letter-spacing: 0.1em;
  padding-top: 0.5rem;
}
.feature-item__title {
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}
.feature-item__desc {
  color: var(--ink-muted);
  font-size: var(--step-0);
  line-height: 1.6;
  max-width: 60ch;
}

/* --- Info panel (aside for service pages) --------------------------------- */
.info-panel {
  background: var(--bone);
  padding: 2rem;
  border-left: 3px solid var(--gold);
}
.info-panel h3 {
  font-size: var(--step-1);
  margin-bottom: 1rem;
}
.info-panel dl { display: grid; gap: 1rem; }
.info-panel dt {
  font-size: var(--step--2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.2rem;
}
.info-panel dd {
  margin: 0;
  font-size: var(--step-0);
  color: var(--ink);
}

/* --- Utility -------------------------------------------------------------- */
.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;
}

.text-center { text-align: center; }
.text-muted { color: var(--ink-muted); }
.text-gold { color: var(--gold-deep); }

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--bone);
  padding: 0.75rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* --- Reveal animations --------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  }
  [data-reveal].in {
    opacity: 1;
    transform: translateY(0);
  }
}