/* Header and navigation */
.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.site-header.is-scrolled,
.site-header.menu-visible {
  border-color: rgba(11, 31, 58, 0.08);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0.5rem 2rem rgba(7, 20, 38, 0.04);
  backdrop-filter: blur(1rem);
}

.site-header:not(.is-scrolled):not(.menu-visible) .brand {
  color: var(--color-white);
}

.site-header:not(.is-scrolled):not(.menu-visible) .nav-toggle {
  background: var(--color-white);
  color: var(--color-navy-900);
}

.site-header:not(.is-scrolled):not(.menu-visible) .site-nav > a:not(.button) {
  color: #d4deeb;
}

.site-header:not(.is-scrolled):not(.menu-visible) .site-nav > .button {
  border-color: var(--color-white);
  background: var(--color-white);
  color: var(--color-navy-900);
}

.site-header:not(.is-scrolled):not(.menu-visible) .site-nav > .button:hover {
  border-color: var(--color-blue-100);
  background: var(--color-blue-100);
}

.brand {
  position: relative;
  z-index: 52;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-navy-950);
  font-size: 0.9rem;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand__mark {
  width: 2rem;
  fill: currentColor;
}

.nav-toggle {
  position: relative;
  z-index: 52;
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-navy-900);
  color: var(--color-white);
}

.site-header.is-ready .nav-toggle {
  display: grid;
}

.nav-toggle__lines {
  display: grid;
  width: 1.15rem;
  gap: 0.35rem;
}

.nav-toggle__lines span {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:first-child {
  transform: translateY(0.2rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:last-child {
  transform: translateY(-0.2rem) rotate(-45deg);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.site-header.is-ready .site-nav {
  position: fixed;
  z-index: 51;
  inset: 0;
  flex-direction: column;
  flex-wrap: nowrap;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  padding: 7rem var(--gutter) 3rem;
  background: var(--color-white);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition:
    visibility var(--transition),
    opacity var(--transition);
}

.site-header.is-ready .site-nav.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.site-header.is-ready .site-nav > a:not(.button) {
  padding-block: 0.8rem;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-navy-950);
  font-size: clamp(2rem, 10vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.site-header.is-ready .site-nav .button {
  margin-top: 2rem;
}

/* Shared controls */
.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.85rem 1.2rem;
  border: 1px solid var(--color-navy-900);
  border-radius: 999px;
  background: var(--color-navy-900);
  color: var(--color-white);
  font-size: 0.93rem;
  font-weight: 700;
  line-height: 1.2;
  transition:
    background-color var(--transition),
    color var(--transition),
    transform var(--transition),
    border-color var(--transition);
}

.button:hover {
  border-color: var(--color-blue-600);
  background: var(--color-blue-600);
  transform: translateY(-2px);
}

.button--small {
  min-height: 2.75rem;
  padding-inline: 1rem;
  font-size: 0.85rem;
}

.button--light {
  border-color: var(--color-white);
  background: var(--color-white);
  color: var(--color-navy-950);
}

.button--light:hover {
  border-color: var(--color-blue-100);
  background: var(--color-blue-100);
  color: var(--color-navy-950);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  border-bottom: 1px solid currentColor;
  color: var(--color-navy-900);
  font-size: 0.93rem;
  font-weight: 700;
  transition: color var(--transition);
}

.text-link:hover {
  color: var(--color-blue-600);
}

.text-link--light {
  color: var(--color-white);
}

.eyebrow {
  margin-bottom: 1.25rem;
  color: var(--color-blue-600);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow--light {
  color: #a9c4ff;
}

.section-intro h2 span {
  color: var(--color-muted);
}

.section-intro > p:last-child,
.section-intro--split > p,
.faq__intro > p:last-child {
  color: var(--color-muted);
  font-size: 1.05rem;
}

/* Hero */
.hero__glow {
  position: absolute;
  top: -20rem;
  right: -18rem;
  width: 38rem;
  height: 38rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(94, 145, 247, 0.18), rgba(47, 111, 237, 0) 68%);
}

.hero h1 {
  color: var(--color-white);
}

.hero .eyebrow {
  color: #b9ceff;
}

.hero__lead {
  max-width: 43rem;
  margin-top: 1.75rem;
  color: #c7d2e2;
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  line-height: 1.65;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
  margin-top: 2rem;
}

.hero__audience {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: 3rem;
  color: #c7d2e2;
  font-size: 0.82rem;
}

.hero__audience li {
  position: relative;
}

.hero__audience li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -0.75rem;
  width: 0.2rem;
  height: 0.2rem;
  border-radius: 50%;
  background: #8fb2ff;
}

.hero .button {
  border-color: var(--color-white);
  background: var(--color-white);
  color: var(--color-navy-900);
}

.hero .button:hover {
  border-color: var(--color-blue-100);
  background: var(--color-blue-100);
  color: var(--color-navy-950);
}

.hero .text-link {
  color: var(--color-white);
}

.hero .text-link:hover {
  color: #d8e4ff;
}

.hero :focus-visible,
.contact :focus-visible {
  outline-color: #b9ceff;
}

.hero-system {
  position: relative;
  padding: 1.25rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(rgba(11, 31, 58, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 31, 58, 0.035) 1px, transparent 1px),
    var(--color-white);
  background-size: 1.75rem 1.75rem;
  box-shadow: var(--shadow-soft);
}

.hero-system__header {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-system__steps {
  display: grid;
  gap: 0.65rem;
  margin-block: 1.5rem;
}

.hero-system__steps li {
  display: grid;
  grid-template-columns: 2rem auto 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.9);
}

.hero-system__steps span {
  color: var(--color-blue-600);
  font-size: 0.7rem;
  font-weight: 750;
}

.hero-system__steps strong {
  color: var(--color-navy-950);
  font-size: 0.9rem;
}

.hero-system__steps i {
  height: 1px;
  background: var(--color-line);
}

.hero-system > p {
  color: var(--color-muted);
  font-size: 0.78rem;
  text-align: right;
}

/* Philosophy */
.philosophy {
  padding-block: clamp(6rem, 13vw, 10rem);
}

.philosophy .section-intro {
  margin-bottom: clamp(4rem, 9vw, 6.5rem);
}

.philosophy .section-intro h2,
.about__title h2 {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 570;
  line-height: 1.12;
}

.philosophy__statement {
  align-self: start;
  padding-left: 1.25rem;
  border-left: 3px solid var(--color-blue-600);
}

.philosophy__statement p {
  color: var(--color-navy-900);
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 550;
  letter-spacing: -0.025em;
  line-height: 1.45;
}

.principle {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1rem;
  padding-block: 1.5rem;
  border-top: 1px solid var(--color-line);
}

.principle:last-child {
  border-bottom: 1px solid var(--color-line);
}

.principle > span,
.service-card__number,
.method-list > li > span {
  color: var(--color-blue-600);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.principle h3 {
  margin-bottom: 0.65rem;
}

.principle p {
  color: var(--color-muted);
}

/* Services */
.service-card {
  position: relative;
  display: flex;
  min-height: 30rem;
  flex-direction: column;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.service-card:hover {
  border-color: #c1ccda;
  box-shadow: var(--shadow-soft);
  transform: translateY(-4px);
}

.service-card::after {
  content: "";
  position: absolute;
  top: -3rem;
  right: -3rem;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background: var(--color-blue-100);
  opacity: 0.65;
}

.service-card h3 {
  max-width: 22rem;
  margin: 1.75rem 0 3rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.service-card dl {
  display: grid;
  gap: 1rem;
  margin-top: auto;
}

.service-card dl div {
  display: grid;
  gap: 0.2rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--color-line);
}

.service-card dt {
  color: var(--color-navy-900);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.service-card dd {
  color: var(--color-muted);
  font-size: 0.92rem;
}

.service-card--featured {
  min-height: auto;
}

.services-upcoming {
  display: grid;
  gap: 0.5rem clamp(2rem, 6vw, 5rem);
  max-width: 64rem;
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.62);
}

.services-upcoming .eyebrow {
  margin: 0;
}

.services-upcoming > p:last-child {
  max-width: 48rem;
  color: var(--color-muted);
}

/* Method */
.method {
  background-color: var(--color-navy-950);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(165deg, var(--color-navy-900), var(--color-navy-950));
  background-size: 4.5rem 4.5rem, 4.5rem 4.5rem, 100% 100%;
  color: var(--color-white);
}

.method h2,
.method h3 {
  color: var(--color-white);
}

.method .section-intro > p:last-child {
  max-width: 36rem;
  margin-top: 1.5rem;
  color: #aebbd0;
}

.method-list {
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.method-list li {
  padding: 2rem 1rem 2.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.method-list h3 {
  margin: 2rem 0 1rem;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.method-list p {
  color: #aebbd0;
}

/* Projects */
.projects {
  border-top: 1px solid rgba(11, 31, 58, 0.06);
}

.projects__intro-copy {
  display: grid;
  gap: 0.8rem;
  max-width: 32rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.project-card {
  min-width: 0;
}

.project-card__media {
  position: relative;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border: 1px solid rgba(11, 31, 58, 0.1);
  border-radius: var(--radius-lg);
  background: var(--color-navy-950);
  box-shadow: 0 1.25rem 3.5rem rgba(7, 20, 38, 0.12);
}

.project-card__media video {
  position: absolute;
  top: -6%;
  left: -1.5%;
  width: 103%;
  max-width: none;
  height: auto;
}

.project-card__content {
  padding: 1.5rem 0 2rem;
}

.project-card__content h3 {
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.project-card__content p {
  max-width: 30rem;
  margin-top: 0.65rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* About */
.about {
  padding-block: clamp(6rem, 13vw, 10rem);
}

.about__lead {
  color: var(--color-navy-950);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 550;
  letter-spacing: -0.025em;
  line-height: 1.45;
}

.about__content {
  max-width: 43rem;
}

.about__content > p {
  line-height: 1.75;
}

.about__content > p + p {
  margin-top: 1.5rem;
  color: var(--color-muted);
}

.commitment {
  margin-top: 3rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border-radius: var(--radius-md);
  background: var(--color-navy-900);
  color: var(--color-white);
}

.commitment span {
  color: #a9c4ff;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.commitment p {
  margin-top: 0.75rem;
  font-size: 1.05rem;
}

/* FAQ */
.faq__intro {
  align-self: start;
}

.faq__intro > p:last-child {
  margin-top: 1.5rem;
}

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

.faq-item {
  padding-block: clamp(1.5rem, 4vw, 2rem);
  border-bottom: 1px solid var(--color-line);
}

.faq-item h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.faq-item p {
  max-width: 42rem;
  margin-top: 0.75rem;
  color: var(--color-muted);
}

/* Contact */
.contact {
  background-color: var(--color-navy-900);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(160deg, var(--color-navy-800), var(--color-navy-900) 58%, var(--color-navy-950));
  background-size: 4.5rem 4.5rem, 4.5rem 4.5rem, 100% 100%;
  color: var(--color-white);
}

.contact h2 {
  color: var(--color-white);
}

.contact__heading {
  max-width: 53rem;
  margin-bottom: clamp(3rem, 7vw, 5rem);
}

.contact__heading > p:last-child {
  max-width: 38rem;
  margin-top: 1.5rem;
  color: #b7c3d6;
  font-size: 1.05rem;
}

.contact__direct {
  align-self: start;
}

.contact__direct > p {
  color: #b7c3d6;
}

.contact__direct > a {
  display: inline-flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
  font-weight: 700;
}

.contact__direct > div {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.contact__direct span {
  color: #a9c4ff;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact__direct div p {
  margin-top: 0.5rem;
  color: #b7c3d6;
}

.contact-form {
  display: grid;
  gap: 1.25rem;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field label {
  font-size: 0.78rem;
  font-weight: 700;
}

.field label span {
  color: #aebbd0;
  font-weight: 500;
}

.field input,
.field select,
.field textarea {
  min-height: 3.25rem;
  padding: 0.75rem 0.9rem;
}

.field textarea {
  min-height: 8rem;
}

.field [aria-invalid="true"] {
  border-color: #ffb4ab;
}

.field__error {
  min-height: 1.15rem;
  color: #ffb4ab;
  font-size: 0.75rem;
}

.form-status {
  min-height: 1.5rem;
  color: #d7e3f7;
  font-size: 0.85rem;
}

/* Footer */
.site-footer {
  padding-block: 4rem 1.5rem;
  background: var(--color-navy-950);
  color: var(--color-white);
}

.brand--footer {
  color: var(--color-white);
}

.footer__main {
  padding-bottom: 4rem;
}

.footer__main > p {
  max-width: 32rem;
  color: #b7c3d6;
  font-size: clamp(1.4rem, 3vw, 2rem);
  letter-spacing: -0.025em;
  line-height: 1.35;
}

.footer__bottom {
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: #93a1b7;
  font-size: 0.78rem;
}

.footer__bottom a {
  transition: color var(--transition);
}

.footer__bottom a:hover {
  color: var(--color-white);
}

@media (min-width: 36rem) {
  .hero__actions {
    flex-direction: row;
    align-items: center;
  }

  .contact-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .field--full {
    grid-column: 1 / -1;
  }
}

@media (min-width: 48rem) {
  .service-card--featured dl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .services-upcoming {
    grid-template-columns: minmax(8rem, 0.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
}

@media (min-width: 48rem) {
  .method-list li {
    padding-right: 2rem;
  }

  .method-list li:nth-child(odd) {
    border-right: 1px solid rgba(255, 255, 255, 0.18);
  }

  .method-list li:nth-child(even) {
    padding-left: 2rem;
  }
}

@media (min-width: 56rem) {
  .site-header.is-ready .nav-toggle {
    display: none;
  }

  .site-header.is-ready .site-nav,
  .site-nav {
    position: static;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(1rem, 2.5vw, 2rem);
    padding: 0;
    background: transparent;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }

  .site-header.is-ready .site-nav > a:not(.button) {
    position: relative;
    padding: 0.5rem 0;
    border: 0;
    color: var(--color-muted);
    font-size: 0.85rem;
    font-weight: 650;
    letter-spacing: 0;
  }

  .site-header.is-ready .site-nav > a:not(.button)::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0.2rem;
    left: 0;
    height: 1px;
    background: var(--color-navy-900);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition);
  }

  .site-header.is-ready .site-nav > a:not(.button):hover {
    color: var(--color-navy-900);
  }

  .site-header.is-ready .site-nav > a:not(.button):hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .site-header:not(.is-scrolled):not(.menu-visible).is-ready .site-nav > a:not(.button) {
    color: #d4deeb;
  }

  .site-header:not(.is-scrolled):not(.menu-visible).is-ready .site-nav > a:not(.button)::after {
    background: var(--color-white);
  }

  .site-header:not(.is-scrolled):not(.menu-visible).is-ready .site-nav > a:not(.button):hover {
    color: var(--color-white);
  }

  .site-header.is-ready .site-nav .button {
    margin-top: 0;
  }
}

@media (min-width: 64rem) {
  .method-list li {
    min-height: 22rem;
    padding: 2rem;
    border-right: 1px solid rgba(255, 255, 255, 0.18);
  }

  .method-list li:first-child {
    padding-left: 0;
  }

  .method-list li:last-child {
    padding-right: 0;
    border-right: 0;
  }
}

@media (max-width: 55.999rem) {
  .site-header {
    z-index: 1000;
  }

  .site-header.menu-visible {
    border-color: rgba(11, 31, 58, 0.08);
    background: var(--color-white);
    backdrop-filter: none;
  }

  .site-header.is-ready .site-nav {
    position: fixed;
    z-index: 1001;
    inset: 4.5rem 0 0;
    width: 100%;
    height: auto;
    min-height: calc(100vh - 4.5rem);
    min-height: calc(100dvh - 4.5rem);
    justify-content: flex-start;
    padding: clamp(2rem, 8vh, 5rem) var(--gutter) 2rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: var(--color-white);
    transform: translateY(-0.5rem);
    overscroll-behavior: contain;
    transition:
      visibility var(--transition),
      opacity var(--transition),
      transform var(--transition);
  }

  .site-header.is-ready .site-nav.is-open {
    transform: translateY(0);
  }
}

@media (max-width: 47.999rem) {
  .hero h1 {
    font-size: clamp(2.15rem, 7.45vw, 4.6rem);
  }

  .hero__lead {
    margin-top: 1.4rem;
  }

  .hero__actions {
    margin-top: 1.5rem;
  }

  .hero__audience {
    margin-top: 2.2rem;
  }

  .hero-system {
    padding: 1rem;
  }

  .hero-system__header {
    padding-bottom: 0.75rem;
  }

  .hero-system__steps {
    gap: 0.45rem;
    margin-block: 1.1rem;
  }

  .hero-system__steps li {
    padding: 0.6rem 0.7rem;
  }

  .philosophy,
  .about {
    padding-block: clamp(5.1rem, 11.05vw, 8.5rem);
  }

  .philosophy .section-intro {
    margin-bottom: clamp(3.4rem, 7.65vw, 5.525rem);
  }

  .project-card__media {
    margin-inline: -0.5rem;
  }

  .contact__heading {
    margin-bottom: 2.55rem;
  }

  .contact-form {
    gap: 1.5rem;
  }

  .field {
    gap: 0.55rem;
  }
}