:root {
  --accent:      #C0FF00;
  --accent-dark: #9ACC00;
  --bg:          #0A0A0A;
  --bg-card:     #161616;
  --border:      #262626;
  --text-muted:  #888;
  --radius-card: 1.5rem;
  --radius-btn:  50px;

  --h1-size:   clamp(2rem,   6vw,  5.5rem);
  --h2-size:   clamp(1.7rem, 4vw,  3.5rem);
  --body-size: clamp(0.875rem, 1.4vw, 1.125rem);
  --small-size:clamp(0.7rem,  0.9vw, 0.85rem);

  --section-py: clamp(3rem, 8vw, 9rem);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: #fff;
  font-size: var(--body-size);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }

.container-site {
  width: 100%;
  max-width: min(1800px, 92vw);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 3rem);
}

.accent-text { color: var(--accent); }
.accent-bg   { background-color: var(--accent); color: #000; }

.btn-accent {
  background-color: var(--accent);
  color: #000;
  font-weight: 800;
  border: none;
  border-radius: var(--radius-btn);
  padding: clamp(.55rem, 1.5vw, 1rem) clamp(1.2rem, 3vw, 2.5rem);
  font-size: clamp(.78rem, 1.15vw, 1rem);
  transition: opacity .25s, transform .25s;
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  line-height: 1.5;
}
.btn-accent:hover { opacity: .88; transform: translateY(-2px); color: #000; }

.btn-outline-acc {
  background: transparent;
  color: #fff;
  font-weight: 700;
  border: 1px solid #444;
  border-radius: var(--radius-btn);
  padding: clamp(.55rem, 1.5vw, 1rem) clamp(1.2rem, 3vw, 2.5rem);
  font-size: clamp(.78rem, 1.15vw, 1rem);
  transition: border-color .25s, color .25s;
  white-space: nowrap;
  text-decoration: none;
  display: inline-block;
  line-height: 1.5;
}
.btn-outline-acc:hover { border-color: var(--accent); color: var(--accent); }

/* навигация */
.site-nav {
  padding-block: clamp(1rem, 2.5vw, 1.8rem);
  padding-left:  max(env(safe-area-inset-left),  clamp(1rem,4vw,3rem));
  padding-right: max(env(safe-area-inset-right), clamp(1rem,4vw,3rem));
}

.logo {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 900;
  letter-spacing: -.03em;
  color: #fff;
  text-decoration: none;
  line-height: 1;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 3vw, 3rem);
  list-style: none;
  margin: 0; padding: 0;
}
.nav-links a {
  font-size: clamp(.65rem, .9vw, .78rem);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #888;
  text-decoration: none;
  transition: color .2s;
}
.nav-links a:hover { color: #fff; }

.lang-switch {
  border: 1px solid #2a2a2a;
  border-radius: 50px;
  padding: 4px 14px;
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: clamp(.62rem, .85vw, .72rem);
  flex-shrink: 0;
}
.lang-btn { cursor: pointer; opacity: .45; font-weight: 700; transition: opacity .2s, color .2s; user-select: none; }
.lang-btn.active { opacity: 1; color: var(--accent); }
.lang-sep { color: #333; }

/* гамбургер */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  flex-shrink: 0;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: #fff; border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: .9rem;
  padding: 1.4rem 0 .8rem;
  border-top: 1px solid var(--border);
  margin-top: .8rem;
}
.mobile-menu a {
  font-size: .82rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: #888;
  text-decoration: none;
  transition: color .2s;
}
.mobile-menu a:hover { color: #fff; }
.mobile-menu.open { display: flex; }

/* главный блок */
.hero-section { padding-block: var(--section-py); }

.hero-label {
  font-size: clamp(.62rem, .9vw, .72rem);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #555;
  margin-bottom: clamp(.6rem, 1.5vw, 1.2rem);
}
.hero-title {
  font-size: var(--h1-size);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.025em;
  margin-bottom: clamp(.8rem, 2vw, 1.6rem);
}
.hero-desc {
  color: var(--text-muted);
  font-size: clamp(.875rem, 1.4vw, 1.1rem);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: clamp(1.2rem, 2.5vw, 2.2rem);
}
.hero-btns { display: flex; flex-wrap: wrap; gap: clamp(.5rem, 1.2vw, .9rem); }

.hero-img-wrap {
  border-radius: var(--radius-card);
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--bg-card);
  border: 1px solid var(--border);
}
.hero-img-wrap img { width: 100%; height: 100%; object-fit: cover; opacity: .85; }

/* стата */
.stats-section {
  padding-block: clamp(2.5rem, 6vw, 6rem);
  border-top: 1px solid var(--border);
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: clamp(1.3rem, 3vw, 2.8rem) clamp(.8rem, 2vw, 1.8rem);
  text-align: center;
}
.stat-number {
  font-size: clamp(1.9rem, 3.5vw, 3.2rem);
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: .45rem;
}
.stat-label {
  font-size: clamp(.6rem, .85vw, .72rem);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: #555;
}

/* каталог */
.catalog-section {
  padding-block: var(--section-py);
  border-top: 1px solid var(--border);
}
.section-label {
  font-size: clamp(.62rem, .9vw, .72rem);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #555;
  margin-bottom: .5rem;
}
.section-title {
  font-size: var(--h2-size);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.1;
  margin-bottom: clamp(1.8rem, 4.5vw, 4rem);
}

.tractor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  cursor: pointer;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.tractor-card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
  box-shadow: 0 24px 64px rgba(192,255,0,.07);
}
.tc-img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  background: #111;
  flex-shrink: 0;
}
.tc-body {
  padding: clamp(.9rem, 2.2vw, 1.5rem);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.tc-model {
  font-size: clamp(.58rem, .82vw, .68rem);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .35rem;
}
.tc-name {
  font-size: clamp(1rem, 1.7vw, 1.3rem);
  font-weight: 800;
  margin-bottom: .4rem;
  line-height: 1.2;
}
.tc-desc {
  font-size: clamp(.75rem, 1.05vw, .85rem);
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: .9rem;
}
.btn-specs {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: clamp(.7rem, .95vw, .78rem);
  font-weight: 700;
  border: 1px solid #333;
  border-radius: 50px;
  padding: .45rem 1rem;
  color: #fff;
  background: none;
  cursor: pointer;
  transition: border-color .25s, color .25s;
  align-self: flex-start;
}
.btn-specs:hover { border-color: var(--accent); color: var(--accent); }

/* CTA */
.cta-section { padding-block: clamp(2rem, 5vw, 5rem); }
.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(1.8rem, 5vw, 4rem) clamp(1.4rem, 5vw, 4rem);
}
.cta-title {
  font-size: clamp(1.4rem, 3.2vw, 2.7rem);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.15;
}
.cta-desc { color: var(--text-muted); font-size: clamp(.82rem, 1.2vw, 1rem); }

/* подвал */
.site-footer {
  background: #000;
  border-top: 1px solid var(--border);
  padding-block: clamp(3rem, 7vw, 7rem);
  padding-bottom: max(env(safe-area-inset-bottom), clamp(3rem, 7vw, 7rem));
}
.footer-logo { font-size: clamp(1.2rem, 2.4vw, 1.9rem); font-weight: 900; letter-spacing: -.03em; margin-bottom: .9rem; }
.footer-muted { color: #555; font-size: clamp(.72rem, .95vw, .85rem); line-height: 1.7; }
.footer-head { font-size: clamp(.58rem, .82vw, .68rem); letter-spacing: .18em; text-transform: uppercase; color: #444; margin-bottom: 1.1rem; font-weight: 700; }
.footer-link { color: #ccc; text-decoration: none; font-size: clamp(.78rem, 1vw, .88rem); transition: color .2s; }
.footer-link:hover { color: var(--accent); }

/* модальное окно */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.88);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: clamp(.8rem, 3vw, 2.5rem);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.modal-overlay.active { display: flex; }

.modal-box {
  background: var(--bg-card);
  border: 1px solid #2a2a2a;
  border-radius: clamp(1rem, 2.5vw, 2rem);
  width: 100%;
  max-width: min(720px, 96vw);
  max-height: 92dvh;
  overflow-y: auto;
  position: relative;
  animation: modalIn .28s cubic-bezier(.34,1.4,.64,1);
  overscroll-behavior: contain;
}
.modal-box::-webkit-scrollbar { width: 4px; }
.modal-box::-webkit-scrollbar-track { background: transparent; }
.modal-box::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }

@keyframes modalIn {
  from { opacity: 0; transform: scale(.93) translateY(18px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-hero-img {
  width: 100%; aspect-ratio: 16/8; object-fit: cover;
  border-radius: clamp(1rem, 2.5vw, 2rem) clamp(1rem, 2.5vw, 2rem) 0 0;
  background: #111; display: block;
}
.modal-body-inner {
  padding: clamp(1.1rem, 3.5vw, 2rem) clamp(1.3rem, 4vw, 2.4rem) clamp(1.6rem, 4vw, 2.6rem);
}
.modal-close {
  position: absolute;
  top: clamp(10px, 1.8vw, 16px); right: clamp(10px, 1.8vw, 16px);
  width: clamp(30px, 3.5vw, 40px); height: clamp(30px, 3.5vw, 40px);
  background: rgba(0,0,0,.55); border: 1px solid #333; border-radius: 50%;
  color: #fff; font-size: clamp(12px, 1.5vw, 16px);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: border-color .25s, color .25s; z-index: 10; line-height: 1;
}
.modal-close:hover { border-color: var(--accent); color: var(--accent); }

.modal-tag   { font-size: clamp(.58rem, .82vw, .68rem); letter-spacing: .18em; text-transform: uppercase; color: var(--accent); margin-bottom: .35rem; }
.modal-title { font-size: clamp(1.35rem, 2.8vw, 1.9rem); font-weight: 900; margin-bottom: .55rem; letter-spacing: -.02em; }
.modal-desc  { color: var(--text-muted); font-size: clamp(.8rem, 1.15vw, .92rem); line-height: 1.7; margin-bottom: 1.2rem; }

.spec-section-title {
  font-size: clamp(.58rem, .82vw, .68rem);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin-top: 1.1rem; margin-bottom: .2rem; font-weight: 700;
}
.spec-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: .6rem 0; border-bottom: 1px solid #1e1e1e; gap: 1rem;
}
.spec-row:last-child { border-bottom: none; }
.spec-label { color: #666; font-size: clamp(.75rem, 1.05vw, .85rem); }
.spec-value { font-weight: 700; font-size: clamp(.75rem, 1.05vw, .85rem); text-align: right; }

/* адаптация под устройства */

/* (320–575px) */
@media (max-width: 575.98px) {
  .hamburger { display: flex; }
  .nav-desktop { display: none !important; }
  .hero-btns { flex-direction: column; }
  .hero-btns a { width: 100%; text-align: center; }
  .cta-box { text-align: center; }
  .cta-box .d-flex { flex-direction: column; align-items: center !important; }
}

/* (576–767px) */
@media (min-width: 576px) and (max-width: 767.98px) {
  .hamburger { display: flex; }
  .nav-desktop { display: none !important; }
}

@media (min-width: 768px) {
  .hamburger { display: none !important; }
  .mobile-menu { display: none !important; }
}

/* ПК */
@media (min-width: 1200px) {
  .hero-img-wrap { aspect-ratio: 4/3; }
}

/* Full HD */
@media (min-width: 1920px) {
  .tc-img { aspect-ratio: 16/9; }
}

/* 2K */
@media (min-width: 1440px) {
  .modal-box { max-width: min(900px, 55vw); }
}

/* 4K / 2560px+ */
@media (min-width: 2560px) {
  .container-site { max-width: min(2400px, 88vw); }
  .hero-title { font-size: clamp(6rem, 6vw, 10rem); }
  .modal-box { max-width: min(1100px, 48vw); }
}

@media (max-height: 500px) and (orientation: landscape) {
  .hero-section { padding-block: 1.5rem; }
  .hero-img-wrap { display: none; }
  .modal-box { max-height: 98dvh; }
}

@media (hover: none) {
  .tractor-card:hover { transform: none; }
  .btn-accent:hover   { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

@media (forced-colors: active) {
  .accent-text { color: Highlight; }
  .btn-accent  { background: Highlight; color: HighlightText; }
  .tractor-card, .cta-box { border-color: ButtonText; }
}