:root {
  --color-bg: #FFFFFF;
  --color-text: #1A1A18;
  --color-accent: #F1563A;
  --color-card-bg: #F7F7F7;
  --font-display: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --section-padding: 6rem 1.5rem;
  --max-width: 72rem;
  --color-border: rgba(26, 26, 24, 0.12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section[id] {
  scroll-margin-top: 5rem;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
}

#site-nav {
  background: transparent;
  transition: background-color 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
  padding: 1.5rem 0;
}

#site-nav.nav--scrolled {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  padding: 0.85rem 0;
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  #site-nav.nav--scrolled {
    background: var(--color-bg);
  }
}

@media (prefers-reduced-transparency: reduce) {
  #site-nav.nav--scrolled {
    background: var(--color-bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__wordmark {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.nav__logo {
  height: 6rem;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav__links a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav__cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 0.5rem 1.1rem;
  border-radius: 0;
}

@media (max-width: 720px) {
  .nav__links { gap: 1rem; }
  .nav__links li:not(:last-child) { display: none; }
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 7rem 0 6rem;
  text-align: left;
}

.hero__decor {
  position: absolute;
  top: 0;
  right: -4rem;
  width: 26rem;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  color: rgba(26, 26, 24, 0.55);
  margin-bottom: 1.5rem;
}

.hero__headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.25rem, 5.5vw, 4.25rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 46rem;
  margin-bottom: 1.5rem;
}

.hero__body {
  font-size: 0.9rem;
  max-width: 34rem;
  margin-bottom: 1.5rem;
}

.hero__tagline {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 500;
  border-radius: 0;
  padding: 0.85rem 1.75rem;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 700;
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  .hero { padding: 5rem 0 4rem; }
  .hero__decor { width: 14rem; right: -6rem; opacity: 0.7; }
}

.section {
  padding: var(--section-padding, 5rem 1.5rem);
}

.section__heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.005em;
  margin-bottom: 1rem;
  max-width: 36rem;
}

#why-common-threads .section__heading {
  font-family: var(--font-body);
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: rgba(26, 26, 24, 0.55);
  max-width: none;
}

.firm-mark {
  width: 10.5rem;
  height: 10.5rem;
  object-fit: contain;
  object-position: left center;
  margin-bottom: 1rem;
}

.section__intro {
  max-width: 42rem;
  margin-bottom: 3rem;
  font-size: 1.05rem;
}

.list-grid {
  border-top: 1px solid var(--color-border);
}

.list-row {
  display: grid;
  grid-template-columns: 3rem 14rem 1fr;
  gap: 2rem;
  align-items: start;
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-border);
}

.list-row__index {
  font-size: 0.9rem;
  color: rgba(26, 26, 24, 0.4);
}

.list-row__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
}

.list-row__desc {
  font-size: 0.95rem;
}

@media (max-width: 700px) {
  .list-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .list-row__index {
    order: -2;
  }

  .list-row__title {
    order: -1;
  }
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  padding: 2rem;
}

@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.card p {
  font-size: 0.95rem;
}

.section--alt {
  background: var(--color-card-bg);
}

.closing-statement {
  max-width: 42rem;
  font-size: 1.1rem;
}

#why-common-threads .closing-statement {
  font-size: calc(0.8rem * 1.618 * 2);
  max-width: none;
  line-height: 1.3;
}

.closing-statement strong {
  display: block;
  margin-top: 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--color-accent);
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 2.5rem 0;
  border-top: 1px solid var(--color-border);
  border-left: 1px solid var(--color-border);
}

.step-cell {
  padding: 1.5rem;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.step-cell__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: rgba(26, 26, 24, 0.4);
  margin-bottom: 0.75rem;
}

.step-cell p {
  font-size: 1.05rem;
}

@media (max-width: 900px) {
  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .step-grid {
    grid-template-columns: 1fr;
  }
}

.card--firm .card__eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.card--firm p:not(.card__eyebrow) {
  margin-bottom: 1.25rem;
}

.card__link {
  font-size: 0.9rem;
  font-weight: 500;
}

.card__link--disabled {
  color: rgba(26,26,24,0.35);
  cursor: default;
}

.connect {
  text-align: center;
}

.connect .section__heading,
.connect .section__intro {
  margin-left: auto;
  margin-right: auto;
}

.connect .section__intro {
  margin-bottom: 2.5rem;
}

.footer {
  background: var(--color-bg);
  color: var(--color-text);
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 2rem;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 3rem;
  flex-wrap: wrap;
  padding-bottom: 2rem;
}

.footer__brand {
  max-width: 20rem;
}

.footer__logo {
  height: 5.25rem;
  width: auto;
  display: block;
  margin-bottom: 1rem;
}

.footer__tagline {
  font-size: 0.9rem;
  color: rgba(26, 26, 24, 0.6);
}

.footer__columns {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
}

.footer__column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer__column a,
.footer__column span {
  font-size: 0.9rem;
  color: var(--color-text);
  text-decoration: none;
}

.footer__column a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.footer__legal {
  font-size: 0.75rem;
  color: rgba(26, 26, 24, 0.4);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}