/* about.css — секция «О компании».
   Подключать после main.css и home.css (оттуда --accent*, --cool*). */

.about {
  position: relative;
  padding: clamp(80px, 11vh, 140px) clamp(20px, 4vw, 56px);
  background: #11151B;
  border-bottom: 1px solid #1D2129;
  overflow: hidden;
}
/* тонкая инженерная сетка, как в hero и слайдере */
.about::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(147, 151, 171, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(147, 151, 171, .04) 1px, transparent 1px);
  background-size: 88px 88px;
  pointer-events: none;
}
.about__inner {
  position: relative;
  max-width: 1520px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}

/* ---------- Текст ---------- */
.about__eyebrow {
  font: 500 10.5px/1 'JetBrains Mono', monospace;
  letter-spacing: .26em;
  color: var(--accent-text);
  margin-bottom: 20px;
}
.about__title {
  margin: 0;
  max-width: 760px;
  font-size: clamp(28px, 3.6vw, 46px);
  line-height: 1.08;
  font-weight: 500;
  letter-spacing: -.025em;
  color: #E9E9ED;
  text-wrap: balance;
  hyphens: auto;            /* длинное «терморегулирования» на телефоне — с переносом, а не обрывом */
}
.about__lead {
  margin: 22px 0 0;
  max-width: 680px;
  font-size: 16.5px;
  line-height: 1.65;
  color: #9397AB;
}

.about__pillars {
  list-style: none;
  margin: clamp(36px, 5vh, 56px) 0 0;
  padding: 0;
  border-top: 1px solid #1D2129;
}
.about-pillar {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid #1D2129;
}
.about-pillar__no {
  font: 500 12px/1.9 'JetBrains Mono', monospace;
  letter-spacing: .14em;
  color: var(--accent-text);
}
.about-pillar__title {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.35;
  color: #E9E9ED;
}
.about-pillar__text {
  margin: 6px 0 0;
  max-width: 600px;
  font-size: 15px;
  line-height: 1.6;
  color: #9397AB;
}

/* ---------- Карточка патента ---------- */
.patent-card {
  position: relative;
  padding: clamp(24px, 2.6vw, 36px);
  background: #141922;
  border: 1px solid #1D2129;
  border-top: 2px solid var(--accent);
}
/* синий «холодный» отблеск в углу — как переход горячее → холодное у КТТ */
.patent-card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 55%;
  height: 55%;
  background: radial-gradient(circle at 100% 100%, rgba(0, 102, 255, .10), transparent 70%);
  pointer-events: none;
}
.patent-card__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.patent-card__label {
  font: 500 10.5px/1.4 'JetBrains Mono', monospace;
  letter-spacing: .2em;
  color: #75798C;
}
.patent-card__no {
  font: 500 clamp(22px, 2.2vw, 28px)/1 'JetBrains Mono', monospace;
  letter-spacing: -.01em;
  color: #fff;
}
.patent-card__title {
  margin: 0;
  font-size: 20px;
  line-height: 1.3;
  font-weight: 500;
  color: #E9E9ED;
}
.patent-card__scope {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.55;
  color: #9397AB;
}
.patent-card__sub {
  margin: 24px 0 10px;
  font: 500 10.5px/1 'JetBrains Mono', monospace;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #75798C;
}
.patent-card__results {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.patent-card__results li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.5;
  color: #C9CDD8;
}
.patent-card__results li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 10px;
  height: 2px;
  background: var(--cool-light);
}
.patent-card__link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 26px;
  padding: 11px 16px;
  border: 1px solid #2C3038;
  font: 600 11.5px/1 'JetBrains Mono', monospace;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #E9E9ED;
  transition: border-color 200ms, color 200ms;
}
.patent-card__link:hover { color: #fff; border-color: var(--cool-light); }
.patent-card__link:focus-visible { outline: 2px solid var(--cool-light); outline-offset: 3px; }

/* ---------- Цифры под карточкой ---------- */
.about__facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid #1D2129;
  border-top: 0;
}
.about-fact {
  padding: 20px clamp(14px, 1.6vw, 22px);
  border-right: 1px solid #1D2129;
}
.about-fact:last-child { border-right: 0; }
.about-fact__value {
  font: 500 clamp(28px, 2.8vw, 38px)/1 'JetBrains Mono', monospace;
  letter-spacing: -.02em;
  color: #fff;
}
.about-fact__label {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.35;
  color: #9397AB;
}
.about__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: #75798C;
}

/* ---------- Адаптив ---------- */
@media (max-width: 1000px) {
  .about__inner { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 480px) {
  .about__title { font-size: 26px; }
  .about-pillar { grid-template-columns: 40px minmax(0, 1fr); }
  .about-fact__value { font-size: 26px; }
}