.ab-hero { padding: 150px 0 0; background: var(--paper); }
.ab-hero h1 {
  max-width: 1050px;
  margin: 0 0 44px;
  font-size: clamp(42px, 6.6vw, 96px);
  font-weight: 600;
  line-height: .98;
  letter-spacing: -.05em;
}
.ab-hero h1 span { position: relative; white-space: nowrap; }
.ab-hero h1 span::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -.14em;
  width: .9em;
  height: .2em;
  translate: -50% 0;
  background:
    radial-gradient(circle, #4a8df0 60%, transparent 62%) 0 50% / .2em .2em no-repeat,
    radial-gradient(circle, #e84230 60%, transparent 62%) 50% 50% / .2em .2em no-repeat,
    radial-gradient(circle, #f8b800 60%, transparent 62%) 100% 50% / .2em .2em no-repeat;
}
.ab-hero-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 60px;
  padding-bottom: 70px;
}
.ab-hero-row p {
  max-width: 560px;
  margin: 0;
  font-size: 17.5px;
  line-height: 1.65;
  color: #4a4a5a;
}

.ab-story { padding: 90px 0 120px; }
.ab-story-grid { display: grid; grid-template-columns: 380px 1fr; gap: 60px; }
.ab-story h2,
.ab-principles h2,
.ab-services h2,
.ab-mv h2 {
  margin: 0;
  font-size: clamp(30px, 3.6vw, 48px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -.04em;
}
.ab-story h2 { position: sticky; top: 110px; align-self: start; }
.ab-story-text { max-width: 680px; }
.ab-story-text p { margin: 0 0 22px; font-size: 17px; line-height: 1.75; color: #4a4a5a; }
.ab-story-text .ab-lead { font-size: 24px; line-height: 1.45; font-weight: 500; letter-spacing: -.015em; color: var(--ink); }
.ab-story-text a { color: var(--ink); font-weight: 600; text-decoration: underline; text-decoration-color: var(--acc); text-underline-offset: 4px; }
.ab-story-text a:hover { color: var(--acc); }

.ab-founder {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
  padding: 14px 22px 14px 14px;
  background: var(--paper);
  border-radius: 18px;
}
.ab-founder-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
  background: var(--ink);
  border-radius: 16px;
}
.ab-founder-mark i {
  position: absolute;
  bottom: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #4a8df0;
}
.ab-founder-mark i:nth-of-type(1) { left: calc(50% - 10px); }
.ab-founder-mark i:nth-of-type(2) { left: calc(50% - 2.5px); background: #e84230; }
.ab-founder-mark i:nth-of-type(3) { left: calc(50% + 5px); background: #f8b800; }
.ab-founder b { display: block; font-size: 16px; font-weight: 600; }
.ab-founder small { font-size: 13.5px; color: #8a8a9a; }

.ab-principles { padding: 110px 0; color: #fff; background: var(--ink); }
.ab-principles h2 { margin-bottom: 50px; }
.ab-principle-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, .15);
}
.ab-principle-list li {
  display: grid;
  grid-template-columns: 56px 1fr;
  column-gap: 20px;
  padding: 36px 40px 36px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .15);
}
.ab-principle-list li:nth-child(even) { padding-left: 40px; padding-right: 0; border-left: 1px solid rgba(255, 255, 255, .15); }
.ab-no { grid-row: span 2; font-size: 14px; font-weight: 600; color: var(--acc); padding-top: 6px; }
.ab-principle-list h3 { margin: 0 0 10px; font-size: 22px; font-weight: 600; line-height: 1.25; letter-spacing: -.02em; }
.ab-principle-list p { margin: 0; font-size: 15.5px; line-height: 1.65; color: rgba(255, 255, 255, .62); }

.ab-mv { padding: 110px 0 0; }
.ab-mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.ab-mv-item { padding: 44px; background: var(--paper); border-radius: 28px; }
.ab-mv-item h2 { margin-bottom: 18px; font-size: clamp(26px, 2.6vw, 34px); }
.ab-mv-item p { margin: 0; font-size: 16.5px; line-height: 1.7; color: #4a4a5a; }

.ab-services { padding: 110px 0 120px; }
.ab-services-grid { display: grid; grid-template-columns: 380px 1fr; gap: 60px; }
.ab-services h2 { position: sticky; top: 110px; align-self: start; }
.ab-service-list { border-top: 1px solid rgba(11, 11, 20, .12); }
.ab-service-list a {
  display: grid;
  grid-template-columns: 240px 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid rgba(11, 11, 20, .12);
  transition: padding .35s var(--ease), color .3s;
}
.ab-service-list b { font-size: 20px; font-weight: 600; letter-spacing: -.02em; }
.ab-service-list span { font-size: 15px; color: #6b6b7b; }
.ab-service-list i {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  font-style: normal;
  font-size: 15px;
  background: var(--paper);
  border-radius: 12px;
  transition: background .3s, color .3s, transform .4s var(--ease);
}
.ab-service-list a:hover { padding-left: 12px; }
.ab-service-list a:hover b { color: var(--acc); }
.ab-service-list a:hover i { color: #fff; background: var(--acc); transform: rotate(45deg); }

@media (max-width: 1100px) {
  .ab-hero-row { grid-template-columns: 1fr; gap: 40px; }
  .ab-story-grid, .ab-services-grid { grid-template-columns: 1fr; gap: 30px; }
  .ab-story h2, .ab-services h2 { position: static; }
  .ab-principle-list { grid-template-columns: 1fr; }
  .ab-principle-list li,
  .ab-principle-list li:nth-child(even) { padding: 30px 0; border-left: 0; }
}
@media (max-width: 640px) {
  .ab-hero { padding-top: 96px; }
  .ab-hero h1 { margin-bottom: 30px; font-size: 36px; line-height: 1.04; }
  .ab-hero-row { padding-bottom: 36px; }
  .ab-hero-row p { font-size: 15px; }
  .ab-story { padding: 40px 0 72px; }
  .ab-story h2, .ab-principles h2, .ab-services h2 { font-size: 30px; }
  .ab-story-text p { font-size: 15.5px; line-height: 1.7; }
  .ab-story-text .ab-lead { font-size: 19px; }
  .ab-principles { padding: 72px 0; }
  .ab-principles h2 { margin-bottom: 26px; }
  .ab-principle-list li,
  .ab-principle-list li:nth-child(even) { grid-template-columns: 38px 1fr; column-gap: 12px; padding: 24px 0; }
  .ab-principle-list h3 { font-size: 18px; }
  .ab-principle-list p { font-size: 14.5px; }
  .ab-mv { padding-top: 64px; }
  .ab-mv-grid { grid-template-columns: 1fr; gap: 12px; }
  .ab-mv-item { padding: 28px 22px; border-radius: 22px; }
  .ab-mv-item p { font-size: 15px; }
  .ab-services { padding: 64px 0 80px; }
  .ab-service-list a { grid-template-columns: 1fr auto; gap: 4px 16px; padding: 20px 0; }
  .ab-service-list b { font-size: 17px; }
  .ab-service-list span { grid-row: 2; font-size: 13.5px; }
  .ab-service-list i { grid-row: span 2; grid-column: 2; grid-row-start: 1; }
}