:root {
  --bg: #050505;
  --ink: #ffffff;
  --text: #e8e8e8;
  --muted: #b8b8b8;
  --panel: #171717;
  --panel-text: #f5f5f5;
  --line: rgba(255, 255, 255, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgba(255, 255, 255, 0.12), transparent 28%),
    linear-gradient(145deg, #000000 0%, #111111 48%, #030303 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.35;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 46px 34px 22px;
  background: rgba(5, 5, 5, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(28px, 5vw, 54px);
}

.nav a {
  color: var(--text);
  font-size: 16px;
  font-weight: 800;
  white-space: nowrap;
}

.nav a:hover {
  text-decoration: underline;
  text-underline-offset: 5px;
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 34px 90px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  gap: clamp(36px, 8vw, 92px);
  align-items: start;
  min-height: 440px;
  padding: 62px 0 82px;
}

.kicker {
  display: none;
}

h1 {
  max-width: 620px;
  margin-bottom: 24px;
  color: var(--ink);
  font-size: clamp(46px, 6.8vw, 58px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.05;
}

.role {
  margin-bottom: 28px;
  color: var(--ink);
  font-size: clamp(25px, 3.4vw, 31px);
  font-weight: 800;
}

.intro {
  max-width: 680px;
  margin-bottom: 30px;
  color: var(--text);
  font-size: clamp(20px, 2.4vw, 22px);
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 58px;
  padding: 0 28px;
  border: 2px solid var(--ink);
  border-radius: 4px;
  background: var(--ink);
  color: #050505;
  font-size: 18px;
  font-weight: 800;
  transition: background 0.18s ease, color 0.18s ease;
}

.button:hover {
  background: transparent;
  color: var(--ink);
}

.hero-art {
  width: 128px;
  height: auto;
  margin-top: 38px;
  justify-self: end;
}

.sticker {
  object-fit: contain;
  filter: grayscale(1) contrast(1.22) invert(1) brightness(1.08);
}

.contact-art.sticker {
  filter: grayscale(1) contrast(1.16) drop-shadow(0 0 14px rgba(255, 255, 255, 0.2));
}

.hero-art.sticker {
  filter: grayscale(1) contrast(1.16) drop-shadow(0 0 14px rgba(255, 255, 255, 0.2));
}

.section {
  padding-top: 80px;
}

.section h2 {
  margin-bottom: 38px;
  color: var(--ink);
  font-size: clamp(36px, 5vw, 46px);
  font-weight: 900;
  line-height: 1.12;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 305px;
  gap: clamp(34px, 6vw, 72px);
  align-items: center;
}

.about-copy p {
  max-width: 670px;
  color: var(--text);
  font-size: clamp(20px, 2.45vw, 23px);
  font-weight: 700;
}

.about-copy strong {
  color: var(--ink);
  font-weight: 900;
}

.qualities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
  max-width: 650px;
}

.qualities span {
  min-width: 0;
  padding: 14px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #050505;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.15;
  text-align: center;
  white-space: nowrap;
}

.portrait {
  width: 305px;
  height: 278px;
  margin: 0;
  overflow: hidden;
  background: #111111;
}

.portrait img {
  object-position: center top;
  filter: contrast(1.04) saturate(0.9);
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(48px, 8vw, 86px);
  margin-top: 46px;
}

.info-cards article {
  min-height: 248px;
  padding: 30px 34px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--panel);
  color: var(--panel-text);
}

.info-cards h3 {
  margin-bottom: 20px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 900;
  text-align: center;
}

ul {
  margin: 0;
  padding-left: 22px;
}

li {
  margin-bottom: 6px;
  color: var(--panel-text);
  font-size: 18px;
  font-weight: 700;
}

.skills-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 455px;
  gap: clamp(46px, 8vw, 78px);
  align-items: start;
}

.skills-text {
  display: grid;
  gap: 30px;
}

.skills-text h3,
.programs h3 {
  margin-bottom: 0;
  color: var(--ink);
  font-size: clamp(25px, 3vw, 29px);
  font-weight: 900;
  line-height: 1.1;
}

.skills-text p {
  color: var(--text);
  font-size: clamp(20px, 2.45vw, 23px);
  font-weight: 700;
}

.programs {
  padding-top: 6px;
}

.programs h3 {
  margin-bottom: 26px;
}

.program-group {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.program-group p {
  color: var(--ink);
  font-size: 19px;
  font-weight: 900;
  text-align: right;
}

.program-group.extra {
  max-width: 310px;
  margin-top: 48px;
  margin-left: auto;
}

.logo-strip,
.logo-board {
  display: grid;
  background: var(--panel);
  border: 1px solid var(--line);
}

.logo-strip {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  align-items: center;
  min-height: 106px;
  padding: 20px;
}

.logo-board {
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 22px;
}

.logo-strip span,
.logo-board span {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: var(--radius);
  background: transparent;
  transition: transform 0.18s ease;
}

.logo-strip span::after,
.logo-board span::after {
  position: absolute;
  right: 50%;
  bottom: calc(100% + 9px);
  z-index: 3;
  width: max-content;
  max-width: 150px;
  padding: 6px 9px;
  border-radius: 3px;
  background: var(--ink);
  color: #050505;
  content: attr(data-label);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.15;
  opacity: 0;
  pointer-events: none;
  text-align: center;
  transform: translate(50%, 4px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  white-space: nowrap;
}

.logo-strip span:hover,
.logo-board span:hover {
  transform: translateY(-2px);
}

.logo-strip span:hover::after,
.logo-board span:hover::after {
  opacity: 1;
  transform: translate(50%, 0);
}

.logo-strip img,
.logo-board img {
  width: 86%;
  height: 86%;
  object-fit: contain;
}

.logo-strip span:last-child img {
  width: 95%;
  height: 95%;
}

.contacts {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 138px;
  gap: 36px;
  align-items: start;
  padding-top: 96px;
}

.contacts h2 {
  margin-bottom: 32px;
}

address {
  display: grid;
  gap: 22px;
  font-style: normal;
}

address p {
  color: var(--text);
  font-size: clamp(21px, 2.6vw, 25px);
  font-weight: 700;
}

address strong {
  color: var(--ink);
  font-weight: 900;
}

address a {
  word-break: break-word;
}

.contact-art {
  width: 138px;
  height: auto;
  margin-top: 48px;
}

@media (max-width: 880px) {
  html {
    scroll-padding-top: 124px;
  }

  .site-header,
  main {
    padding-right: 24px;
    padding-left: 24px;
  }

  .site-header {
    align-items: flex-start;
    gap: 22px;
    padding-top: 24px;
    padding-bottom: 16px;
  }

  .nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 14px 24px;
  }

  .hero,
  .about-grid,
  .skills-layout,
  .contacts {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 40px;
  }

  .hero-art {
    width: 128px;
    margin-top: 0;
    justify-self: start;
  }

  .portrait {
    width: min(100%, 340px);
    height: 320px;
    justify-self: center;
  }

  .programs {
    width: 100%;
    max-width: 540px;
  }

  .program-group.extra {
    max-width: 360px;
    margin-left: 0;
  }

  .contacts {
    gap: 8px;
  }

  .contact-art {
    justify-self: end;
    width: 120px;
    margin-top: 0;
  }
}

@media (max-width: 620px) {
  html {
    scroll-padding-top: 116px;
  }

  body {
    font-size: 17px;
  }

  .site-header {
    display: block;
    padding-top: 16px;
    padding-bottom: 12px;
  }

  .brand {
    display: inline-block;
    margin-bottom: 12px;
    font-size: 14px;
  }

  .nav {
    justify-content: flex-start;
    gap: 14px;
    margin-right: -24px;
    margin-left: -24px;
    padding: 0 24px 4px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .nav a {
    font-size: 13px;
  }

  .section {
    padding-top: 62px;
  }

  .section h2 {
    margin-bottom: 28px;
  }

  .hero {
    gap: 22px;
    padding-bottom: 70px;
  }

  h1 {
    max-width: 330px;
    font-size: clamp(40px, 12vw, 50px);
  }

  .role {
    font-size: 24px;
  }

  .intro,
  .about-copy p,
  .skills-text p {
    font-size: 18px;
  }

  .hero-art {
    justify-self: end;
  }

  .qualities {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .qualities span {
    padding: 12px 10px;
    font-size: 16px;
  }

  .portrait {
    width: min(100%, 300px);
    height: 300px;
  }

  .info-cards {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .info-cards article {
    min-height: auto;
    padding: 26px 24px;
  }

  li {
    font-size: 16px;
  }

  .logo-strip {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 16px;
  }

  .logo-board {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 16px;
  }

  .program-group p {
    text-align: left;
  }

  .program-group.extra {
    max-width: 100%;
  }

  .contacts {
    padding-top: 74px;
  }

  address {
    gap: 16px;
  }

  address p {
    font-size: 18px;
  }
}

@media (max-width: 520px) {
  .qualities {
    grid-template-columns: 1fr;
  }

  .qualities span {
    white-space: normal;
  }
}

@media (max-width: 430px) {
  html {
    scroll-padding-top: 112px;
  }

  .site-header,
  main {
    padding-right: 18px;
    padding-left: 18px;
  }

  .nav {
    margin-right: -18px;
    margin-left: -18px;
    padding-right: 18px;
    padding-left: 18px;
  }

  .button {
    width: 100%;
  }

  .hero-art {
    width: 118px;
  }

  .section h2 {
    max-width: 100%;
    font-size: 32px;
  }

  .logo-strip,
  .logo-board {
    gap: 10px;
  }

  .logo-strip span::after,
  .logo-board span::after {
    bottom: calc(100% + 7px);
    max-width: 120px;
    white-space: normal;
  }

  .contact-art {
    width: 104px;
  }
}