* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}
.kasa-site {
  min-height: 100vh;
  overflow: hidden;
}
.site-header {
  height: 76px;
  padding: 0 5.5%;
  background: var(--white);
  display: grid;
  grid-template-columns: 140px 1fr auto;
  align-items: center;
  gap: 28px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 3px 18px rgb(var(--ink-rgb) / 0.07);
}
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 18;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 12px 28px rgb(var(--ink-rgb) / 0.24);
  cursor: pointer;
  transition: transform 220ms var(--ease-smooth), background-color 220ms ease, box-shadow 220ms ease;
}
.back-to-top:hover {
  background: var(--accent-hover);
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 17px 32px rgb(var(--ink-rgb) / 0.3);
}
.back-to-top:active {
  transform: translateY(-1px) scale(0.95);
}
.logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.06em;
  text-decoration: none;
  color: var(--ink);
}
.logo span {
  color: var(--orange);
}
.desktop-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
}
.desktop-nav a {
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  padding: 9px 0;
  border-bottom: 2px solid transparent;
  transition: color 180ms ease, border-color 180ms ease, transform 180ms var(--ease-smooth);
}
.desktop-nav a:hover {
  color: var(--orange);
  transform: translateY(-1px);
}
.desktop-nav a.active {
  border-bottom-color: var(--orange);
}
.header-cta,
.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 16px;
  background: var(--orange);
  color: var(--white);
  text-decoration: none;
  border: 0;
  border-radius: var(--button-radius);
  font-size: 14px;
  font-weight: 750;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 8px 18px rgb(var(--accent-rgb) / 0);
  transition: transform 220ms var(--ease-smooth), background-color 220ms ease, box-shadow 220ms ease;
}
.header-cta:hover,
.primary-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 24px rgb(var(--accent-rgb) / 0.26);
}
.header-cta:active,
.primary-cta:active {
  transform: translateY(0) scale(0.97);
  box-shadow: none;
}
.header-cta svg,
.primary-cta svg {
  transition: transform 220ms var(--ease-smooth);
}
.header-cta:hover svg,
.primary-cta:hover svg {
  transform: translateX(3px);
}
.menu-button {
  display: none;
  border: 0;
  background: transparent;
  color: var(--ink);
}
.eyebrow {
  margin: 0 0 22px;
  color: var(--orange);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.light {
  color: var(--accent-light);
}
.hero {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  min-height: 610px;
  background: var(--ink);
}
.hero-copy {
  padding: 92px 11% 84px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}
.hero h1,
.page-hero h1 {
  margin: 0;
  color: var(--white);
  font-size: clamp(3.25rem, 6vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.065em;
  max-width: 760px;
}
.lead,
.page-hero > p:last-child {
  color: var(--light-text);
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 560px;
  margin: 28px 0 32px;
}
.hero-art {
  position: relative;
  background: linear-gradient(
    135deg,
    var(--image-blue) 0%,
    var(--image-cool) 46%,
    var(--image-warm) 46%,
    var(--image-warm)
  );
  overflow: hidden;
}
.hero-art p {
  position: absolute;
  left: 11%;
  bottom: 10%;
  margin: 0;
  color: var(--white);
  font-size: clamp(1.65rem, 3vw, 3.4rem);
  line-height: 0.96;
  font-weight: 800;
  letter-spacing: -0.05em;
}
.section {
  padding: 96px var(--page-gutter);
}
.split {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr;
  gap: 8%;
  align-items: end;
}
.split h2,
.approach h2,
.manifesto h2,
.method h2,
.contact h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.35rem, 4.5vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.06em;
}
.split p,
.approach p,
.manifesto > p:last-child,
.contact > div > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.65;
}
.situations {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 60px;
}
.situations article {
  min-height: 200px;
  padding: 28px;
  border-top: 1px solid var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.situations strong {
  font-size: 2rem;
  letter-spacing: -0.05em;
}
.situations span {
  color: var(--muted);
  line-height: 1.55;
  max-width: 220px;
}
.band {
  padding: 90px var(--page-gutter);
  background: var(--ink);
  color: var(--white);
}
.band h2,
.process h2,
.principles h2,
.final-cta h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(2.4rem, 5vw, 4.7rem);
  line-height: 1;
  letter-spacing: -0.065em;
  max-width: 850px;
}
.area-list {
  margin-top: 58px;
  border-top: 1px solid var(--dark-line);
}
.area-list a {
  padding: 24px 0;
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: 22px;
  align-items: start;
  border-bottom: 1px solid var(--dark-line);
  text-decoration: none;
}
.area-list span,
.steps span {
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
}
.area-list strong {
  font-size: 1.6rem;
}
.area-list p {
  margin: 8px 0 0;
  color: var(--light-text);
  max-width: 520px;
  line-height: 1.55;
}
.approach {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 9%;
  align-items: center;
}
.art {
  min-height: 450px;
  background: var(--soft);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 34px;
  overflow: hidden;
}
.art span {
  position: relative;
  color: var(--ink);
  font-size: clamp(1.3rem, 3vw, 2.7rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.06em;
}
.approach > div:last-child > p {
  margin: 23px 0;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
  padding-bottom: 6px;
  transition: color 180ms ease, gap 180ms var(--ease-smooth), border-color 180ms ease;
}
.text-link:hover {
  color: var(--orange);
  gap: 12px;
}
.final-cta {
  margin: 0 var(--page-gutter) 82px;
  padding: 58px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  background: var(--ink);
}
footer {
  padding: 38px var(--page-gutter);
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  gap: 30px;
  background: var(--white);
  border-top: 1px solid var(--line);
  align-items: center;
}
footer p,
footer div {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
footer div {
  display: flex;
  flex-direction: column;
  gap: 7px;
  align-items: end;
}
footer a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
}
.page-hero {
  padding: 108px 12% 94px;
  background: var(--ink);
}
.insight-hero {
  background: var(--blue);
}
.process {
  padding: 92px 12%;
  background: var(--blue);
  margin-bottom: 72px;
}
.process p:last-child {
  color: var(--light-text);
  max-width: 560px;
  line-height: 1.6;
  font-size: 1.1rem;
}
.expertise-intro {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 8%;
  align-items: start;
}
.expertise-intro h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.35rem, 4.3vw, 4.25rem);
  line-height: 1.03;
  letter-spacing: -0.06em;
  max-width: 800px;
}
.expertise-intro p:last-child {
  margin: 25px 0 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
}
.expertise-details {
  padding: 0 var(--page-gutter) 96px;
}
.expertise-detail {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 8%;
  padding: 64px 0;
  border-top: 1px solid var(--ink);
}
.expertise-detail:last-child {
  border-bottom: 1px solid var(--ink);
}
.expertise-heading > span {
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
}
.expertise-heading h2 {
  margin: 22px 0 16px;
  color: var(--ink);
  font-size: clamp(2.7rem, 5vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.07em;
}
.expertise-heading > p {
  margin: 0;
  max-width: 410px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.58;
}
.expertise-content {
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: 38px;
}
.detail-label {
  margin: 0 0 18px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.situation-list,
.intervention-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.situation-list {
  display: grid;
  gap: 13px;
}
.situation-list li {
  padding-left: 17px;
  position: relative;
  color: var(--muted);
  line-height: 1.52;
}
.situation-list li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
}
.intervention-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}
.intervention-list li {
  padding: 9px 11px;
  background: var(--soft);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.25;
}
.expertise-result {
  grid-column: 1 / -1;
  padding: 25px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 0.75fr 1.25fr auto;
  gap: 28px;
  align-items: end;
}
.expertise-result .detail-label,
.expertise-result > p:not(.detail-label) {
  margin: 0;
}
.expertise-result > p:not(.detail-label) {
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.5;
}
@media (max-width: 760px) {
  .expertise-intro,
  .expertise-detail,
  .expertise-content,
  .expertise-result {
    grid-template-columns: 1fr;
  }
  .expertise-intro {
    gap: 12px;
  }
  .expertise-details {
    padding: 0 var(--page-gutter-mobile) 70px;
  }
  .expertise-detail {
    gap: 36px;
    padding: 52px 0;
  }
  .expertise-result {
    gap: 14px;
  }
  .process {
    margin-bottom: 52px;
  }
}

.manifesto {
  max-width: 1060px;
}
.manifesto h2 {
  max-width: 830px;
}
.manifesto > p:last-child {
  margin-top: 28px;
  max-width: 650px;
}
.method {
  background: var(--white);
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 9%;
}
.steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.steps article {
  border-top: 1px solid var(--ink);
  padding-top: 18px;
}
.steps h3 {
  margin: 38px 0 11px;
  color: var(--ink);
  font-size: 1.55rem;
  letter-spacing: -0.04em;
}
.steps p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}
.principles {
  padding: 90px var(--page-gutter);
  background: var(--ink);
}
.principles > div {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.principles article {
  border-top: 1px solid var(--dark-line);
  padding-top: 22px;
}
.principles h2 {
  font-size: 2rem;
}
.principles p {
  color: var(--light-text);
  line-height: 1.6;
}
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease-smooth), transform 700ms var(--ease-smooth);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal-on-scroll {
    opacity: 1;
    transform: none;
  }
}
.contact-hero {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink) 66%, var(--orange) 66%);
}
.contact {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 10%;
  align-items: start;
}
.contact form {
  padding: 34px;
  background: var(--white);
  display: grid;
  gap: 17px;
  box-shadow: 0 20px 60px rgb(var(--ink-rgb) / .15);
}
.contact label {
  display: grid;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}
.contact input,
.contact textarea {
  width: 100%;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--ink);
  font: inherit;
  background: var(--white);
}
.contact small {
  color: var(--muted);
  line-height: 1.45;
}
@media (max-width: 760px) {
  .site-header {
    height: 68px;
    padding: 0 var(--page-gutter);
    grid-template-columns: 1fr auto;
  }
  .back-to-top {
    right: 16px;
    bottom: 18px;
    width: 44px;
    height: 44px;
  }
  .desktop-nav,
  .site-header > .header-cta {
    display: none;
  }
  .menu-button {
    display: grid;
    place-items: center;
  }
  .mobile-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 68px;
    padding: 18px var(--page-gutter) 24px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    display: grid;
    gap: 17px;
  }
  .mobile-nav a {
    font-size: 16px;
    text-decoration: none;
  }
  .mobile-nav .active {
    color: var(--orange);
    font-weight: 800;
  }
  .mobile-nav .header-cta {
    margin-top: 8px;
    width: max-content;
    color: var(--white);
    font-size: 14px;
  }
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-copy {
    padding: 76px var(--page-gutter-mobile) 62px;
  }
  .hero-art {
    min-height: 370px;
  }
  .section {
    padding: 70px var(--page-gutter-mobile);
  }
  .split,
  .approach,
  .method,
  .contact {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .situations,
  .principles > div {
    grid-template-columns: 1fr;
  }
  .situations {
    margin-top: 36px;
  }
  .situations article {
    min-height: 145px;
  }
  .band {
    padding: 70px var(--page-gutter-mobile);
  }
  .area-list {
    margin-top: 38px;
  }
  .area-list a {
    grid-template-columns: 42px 1fr auto;
  }
  .area-list strong {
    font-size: 1.3rem;
  }
  .approach {
    gap: 38px;
  }
  .art {
    min-height: 320px;
  }
  .final-cta {
    margin: 0 0 52px;
    padding: 46px var(--page-gutter-mobile);
    display: block;
  }
  .final-cta .primary-cta {
    margin-top: 27px;
  }
  footer {
    padding: 32px var(--page-gutter-mobile);
    grid-template-columns: 1fr;
    gap: 15px;
  }
  footer div {
    align-items: start;
  }
  .page-hero {
    padding: 76px var(--page-gutter-mobile) 68px;
  }
  .process {
    padding: 70px var(--page-gutter-mobile);
  }
  .steps {
    gap: 22px;
  }
  .principles {
    padding: 70px var(--page-gutter-mobile);
  }
  .contact form {
    padding: 25px;
  }
  .hero h1,
  .page-hero h1 {
    font-size: clamp(3rem, 13vw, 4.4rem);
  }
}