/* --------------------------------------------------------------------------
   Design tokens
   -------------------------------------------------------------------------- */

:root {
  /* Surfaces */
  --color-bg: #e6e4de;
  --color-bg-muted: #dedcd5;

  /* Text */
  --color-text: #1a1c1e;
  --color-text-muted: rgba(26, 28, 30, 0.75);
  --color-text-subtle: rgba(26, 28, 30, 0.6);
  --color-text-faint: rgba(26, 28, 30, 0.4);

  /* UI */
  --color-border: rgba(26, 28, 30, 0.15);
  --color-accent: #9e7f45;
  --color-accent-muted: rgba(158, 127, 69, 0.6);
  --color-overlay: 230, 228, 222;

  /* Typography — единый контрастный Inter, включая цифры и названия брендов */
  --font-display: 'Manrope', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Manrope', 'Segoe UI', Arial, sans-serif;
  --tracking-wide: 0.28em;

  /* Layout */
  --container-max: 1400px;
  --breakpoint-md: 768px;
}


/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  overflow-x: clip;
  width: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: lining-nums tabular-nums;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  position: relative;
}

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

img {
  display: block;
  max-width: 100%;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 24px;
}

@media (min-width: 768px) {
  .container {
    padding-inline: 48px;
  }
}


/* --------------------------------------------------------------------------
   Typography helpers
   -------------------------------------------------------------------------- */

.display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
}

.eyebrow {
  font-size: 10px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
}


/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.header {
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 24px;
}

@media (min-width: 768px) {
  .header-inner {
    padding-block: 32px;
  }
}

.logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.12em;
  min-width: 0;
  max-width: calc(100% - 56px);
  overflow: hidden;
  text-overflow: clip;
  white-space: nowrap;
  color: #FFFFFF;
}

.header-inner {
  position: relative;
  gap: 12px;
  min-width: 0;
  overflow: hidden;
}

:root {
  --nav-toggle-color: var(--color-text);
  --nav-overlay-bg: rgba(230, 228, 222, 0.97);
}

.nav {
  display: none;
  gap: 40px;
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }
}

.nav a {
  font-size: 12px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #FFFFFF;
  transition: color 0.2s ease;
}

.nav a:hover {
  color: rgba(255, 255, 255, 0.7);
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
}


/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  height: 100vh;
  min-height: 640px;
  background-color: #090b0e;
  background-image: url('https://cdn.d-rennsport.ru/assets/images/posters/v5-first.webp');
  background-size: cover;
  background-position: center;
}

.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.hero-video.is-playing { opacity: 1; }

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to bottom,
    rgba(var(--color-overlay), 0.3) 0%,
    rgba(var(--color-overlay), 0.1) 30%,
    rgba(var(--color-overlay), 0.05) 60%,
    var(--color-bg) 100%
  );
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    var(--color-bg) 0%,
    transparent 10%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  width: 100%;
  padding: 24px;
  text-align: center;
}

.hero-title-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 100%;
  min-width: 0;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 11vw, 148px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.045em;
  max-width: 100%;
  color: #FFFFFF;
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.5);
}

.hero-sub {
  font-family: var(--font-display);
  margin-top: -4px;
  font-size: clamp(12px, 1.2vw, 18px);
  font-weight: 500;
  letter-spacing: clamp(0.15rem, 0.6vw, 0.55rem);
  text-transform: uppercase;
  color: #FFFFFF;
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.5);
  max-width: 100%;
}

/* Заголовок-«шашки»: ячейки переворачиваются по оси Y в случайном порядке */
.flip-text {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  perspective: 900px;
}

.flip-word {
  display: flex;
  white-space: nowrap;
}

.flip-space {
  display: inline-block;
  white-space: pre;
}

.flip-cell {
  display: inline-block;
  transform-origin: center;
  backface-visibility: hidden;
}

.flip-text.is-flipping .flip-cell {
  opacity: 0;
  transform: rotateY(90deg);
  background-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
  will-change: transform, opacity;
}

.flip-text.is-flipping.is-revealed .flip-cell {
  opacity: 1;
  transform: rotateY(0deg);
  background-color: transparent;
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition:
    transform 0.55s cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 0.45s ease,
    background-color 0.55s ease,
    box-shadow 0.55s ease;
  transition-delay: var(--flip-delay, 0ms);
}

@media (prefers-reduced-motion: reduce) {
  .flip-text.is-flipping .flip-cell,
  .flip-text.is-flipping.is-revealed .flip-cell {
    opacity: 1;
    transform: none;
    background-color: transparent;
    box-shadow: none;
    transition: none;
    will-change: auto;
  }
}

.divider {
  width: 60px;
  height: 2px;
  margin-top: 32px;
  margin-inline: auto;
  background-color: #FFFFFF;
}

.hero-desc {
  max-width: 420px;
  margin-block-start: 20px;
  font-size: 14px;
  color: var(--color-text-subtle);
}

.scroll-hint {
  position: absolute;
  z-index: 2;
  inset-block-end: 40px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #FFFFFF;
  text-shadow: 0 1px 20px rgba(0, 0, 0, 0.5);
}


/* --------------------------------------------------------------------------
   Company cards
   -------------------------------------------------------------------------- */

.companies {
  margin-block-start: clamp(24px, 5vw, 72px);
  border-block: 1px solid var(--color-border);
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 1540px;
  margin-inline: auto;
}

@media (min-width: 768px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  aspect-ratio: 4 / 3;
  padding: 32px;
  overflow: hidden;
  border-block-start: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .card {
    aspect-ratio: 1 / 1;
    padding: 40px;
    border-block-start: none;
    border-inline-start: 1px solid var(--color-border);
  }

  .card:first-child {
    border-inline-start: none;
  }
}

@media (max-width: 767px) {
  .card:first-child {
    border-block-start: none;
  }
}

.card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.card:nth-child(1) img {
  opacity: 1;
  object-position: 40% center;
}

@media (min-width: 768px) {
  .card:nth-child(1) img {
    object-position: center center;
  }
}

.card:nth-child(2) img {
  object-position: center center;
}

.card:nth-child(3) img {
  object-position: 40% center;
}

@media (min-width: 768px) {
  .card:nth-child(3) img {
    object-position: center center;
  }
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(26, 28, 30, 0.88) 0%,
    rgba(26, 28, 30, 0.5) 38%,
    transparent 68%
  );
}

.card:hover img {
  opacity: 1;
  transform: scale(1.05);
}

.card-top,
.card-bottom {
  position: relative;
  z-index: 2;
}

.card-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 1px;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.45);
}

.card h3 {
  margin-block-start: 0;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: #f5f4f1;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.4);
}

@media (min-width: 768px) {
  .card h3 {
    font-size: 36px;
  }
}

.card-text {
  max-width: 300px;
  margin-block-start: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 244, 241, 0.9);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
}

/* --------------------------------------------------------------------------
   About
   -------------------------------------------------------------------------- */

.about {
  padding-block: 96px;
}

@media (min-width: 768px) {
  .about {
    padding-block: 128px;
  }
}

.about h2 {
  max-width: 780px;
  margin-block-start: 16px;
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.about-divider {
  width: 48px;
  height: 1px;
  margin-block-start: 24px;
  background-color: var(--color-accent);
}

.articles {
  display: flex;
  flex-direction: column;
  gap: 64px;
  margin-block-start: 80px;
}

.article {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-block-end: 48px;
  border-block-end: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .article {
    grid-template-columns: 1fr 2fr;
    gap: 48px;
    align-items: center;
  }
}

.article-logo {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  width: 100%;
}

.article-brand-text {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.015em;
  text-transform: uppercase;
  color: rgb(212, 175, 55);
  line-height: 1.2;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
}

@media (min-width: 768px) {
  .article-brand-text {
    font-size: 28px;
  }
}

.article-text {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .article-text {
    font-size: 18px;
  }
}

.article-btn {
  display: inline-block;
  margin-block-start: 24px;
  padding: 12px 28px;
  border: 1px solid var(--color-border);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text);
  transition: all 0.25s ease;
  white-space: nowrap;
}

.article-btn:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}


/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer {
  padding-block: 64px;
  border-block-start: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 5fr 3fr 4fr;
  }
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #FFFFFF;
}

@media (min-width: 768px) {
  .footer-brand {
    font-size: 36px;
  }
}

.footer-tag {
  font-family: var(--font-display);
  margin-block-start: 8px;
  font-size: 10px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #FFFFFF;
}

.footer-desc {
  max-width: 380px;
  margin-block-start: 32px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-subtle);
}

.footer h4 {
  margin-block-end: 20px;
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
}

.footer ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  font-size: 14px;
  color: var(--color-text-muted);
}

.footer ul a:hover {
  color: var(--color-accent);
}

.footer-grid > div:last-child ul li:last-child {
  color: var(--color-text-subtle);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-block-start: 64px;
  padding-block-start: 32px;
  border-block-start: 1px solid var(--color-border);
  font-size: 10px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-subtle);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .card:nth-child(3) {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .logo {
    font-size: 16px;
    letter-spacing: 0.14em;
  }

  .hero-content {
    padding-inline: 16px;
  }

  .hero h1 {
    font-size: clamp(32px, 9vw, 56px);
    letter-spacing: -0.045em;
  }

  .hero-sub {
    font-size: 11px;
    letter-spacing: 0.3em;
    margin-top: -2px;
  }

  .hero-title-wrap {
    align-items: center;
  }

  .article-brand-text {
    font-size: clamp(16px, 5vw, 22px);
    letter-spacing: 0.04em;
  }

  .footer-brand {
    font-size: 28px;
    letter-spacing: 0.16em;
  }

  .footer-tag {
    letter-spacing: 0.16em;
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: 16px;
  }

  .companies {
    margin-block-start: 0;
  }

  .hero {
    height: 100svh;
    min-height: 100svh;
  }

  .hero-content {
    padding-inline: 12px;
  }

  .hero h1 {
    font-size: clamp(28px, 8.5vw, 48px);
    letter-spacing: -0.05em;
  }

  .hero-sub {
    font-size: 10px;
    letter-spacing: 0.2em;
  }

  .card {
    padding: 24px;
    aspect-ratio: 3 / 4;
  }

  .card h3 {
    font-size: 26px;
  }

  .about {
    padding-block: 64px;
  }

  .articles {
    gap: 48px;
    margin-block-start: 48px;
  }

  .article-btn {
    white-space: normal;
    text-align: center;
    width: 100%;
  }

  .footer {
    padding-block: 48px;
  }

  .footer-brand {
    font-size: 22px;
    letter-spacing: 0.12em;
  }
}

/* DRS v4 — более читаемые названия и цифры в блоках компаний */
.card h3, .article-brand-text { font-family: var(--font-display); font-weight: 800; letter-spacing: -0.015em; }
.card-label, .eyebrow { letter-spacing: 0.14em; }
.hero h1 { letter-spacing: -0.035em; }
body { font-variant-numeric: lining-nums tabular-nums; }