:root {
  --color-black: #000;
  --color-dark: #262626;
  --color-text: #1b1b1b;
  --color-muted: #656565;
  --color-soft: #828282;
  --color-border: #d5d5d5;
  --color-line: #e8e8e8;
  --color-light: #f5f5f5;
  --color-white: #fff;
  --color-accent: #f3cd11;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.12);
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-white);
  font-family: Manrope, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  gap: 14px;
  align-items: center;
  min-width: 0;
}

.brand-logo {
  width: 190px;
  height: auto;
  object-fit: contain;
}

.brand-site-caption {
  max-width: 190px;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
}

.main-nav {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
}

.main-nav a {
  color: var(--color-dark);
  transition: color 0.2s ease;
}

.main-nav a:hover {
  color: var(--color-accent);
}

.header-contact {
  display: grid;
  gap: 4px;
  justify-items: end;
  color: var(--color-dark);
  font-size: 14px;
  font-weight: 600;
}

.header-phone {
  color: var(--color-muted);
}

.nav-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: 720px;
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-black);
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.94), rgba(0, 0, 0, 0.58) 48%, rgba(0, 0, 0, 0.2)),
    url("../assets/images/pump-hero.jpg") center right / cover;
  opacity: 0.9;
}

.hero-inner {
  position: relative;
  display: flex;
  min-height: 720px;
  flex-direction: column;
  justify-content: center;
  padding: 72px 0 56px;
}

.eyebrow,
.section-kicker,
.tag {
  margin: 0 0 18px;
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section h2 {
  margin: 0;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 830px;
  font-size: clamp(38px, 6vw, 72px);
}

.hero-text {
  max-width: 680px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.btn {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 16px 26px;
  cursor: pointer;
  font-weight: 800;
  text-align: center;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-secondary {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--color-white);
}

.btn-dark {
  background: var(--color-black);
  color: var(--color-white);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(100%, 880px);
  margin-top: 62px;
  background: rgba(255, 255, 255, 0.22);
}

.hero-stats div {
  min-height: 124px;
  padding: 22px;
  background: rgba(0, 0, 0, 0.45);
}

.hero-stats strong,
.hero-stats span {
  display: block;
}

.hero-stats strong {
  color: var(--color-white);
  font-size: 25px;
  line-height: 1.15;
}

.hero-stats span {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.section {
  padding: 104px 0;
}

.section-light {
  background: var(--color-light);
}

.section-dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.section h2 {
  max-width: 760px;
  color: inherit;
  font-size: clamp(32px, 4.2vw, 54px);
}

.section-head {
  display: grid;
  gap: 20px;
  margin-bottom: 46px;
}

.section-head p:not(.section-kicker) {
  max-width: 720px;
  margin: 0;
  color: var(--color-muted);
  font-size: 18px;
}

.section-dark .section-head p:not(.section-kicker) {
  color: rgba(255, 255, 255, 0.72);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 80px;
  align-items: start;
}

.lead-block p {
  margin: 0;
  color: var(--color-dark);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.42;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.mini-grid span {
  min-height: 86px;
  border: 1px solid var(--color-line);
  padding: 18px;
  color: var(--color-dark);
  font-weight: 700;
}

.product-maker {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
  align-items: center;
}

.maker-copy p:not(.section-kicker) {
  margin: 24px 0 0;
  color: var(--color-muted);
  font-size: 18px;
}

.maker-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-border);
}

.maker-facts div {
  min-height: 190px;
  padding: 24px;
  background: var(--color-white);
}

.maker-facts strong,
.maker-facts span {
  display: block;
}

.maker-facts strong {
  color: var(--color-black);
  font-size: 30px;
  line-height: 1.1;
}

.maker-facts span {
  margin-top: 18px;
  color: var(--color-muted);
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.product-card {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: var(--color-white);
}

.product-card-dark {
  background: var(--color-dark);
  color: var(--color-white);
}

.product-card-image {
  min-height: 330px;
  background-color: var(--color-light);
  background-image: url("../assets/images/q2-line.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: calc(100% - 36px) calc(100% - 36px);
}

.product-card-image.ghd {
  background-image: url("../assets/images/ghd0-line.png");
}

.product-card-body {
  padding: 34px;
}

.product-card h3 {
  margin: 0 0 16px;
  font-size: 50px;
  line-height: 1;
}

.product-card p {
  margin: 0;
  color: var(--color-muted);
}

.product-card-dark p {
  color: rgba(255, 255, 255, 0.72);
}

.spec-list {
  display: grid;
  gap: 1px;
  margin: 30px 0 0;
  background: var(--color-line);
}

.product-card-dark .spec-list {
  background: rgba(255, 255, 255, 0.18);
}

.spec-list div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
  background: var(--color-white);
}

.product-card-dark .spec-list div {
  background: var(--color-dark);
}

.spec-list dt {
  color: var(--color-muted);
  font-size: 14px;
}

.spec-list dd {
  margin: 0;
  font-weight: 800;
  text-align: right;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.18);
}

.advantage-grid article {
  min-height: 246px;
  padding: 28px;
  background: var(--color-dark);
}

.advantage-grid span {
  color: var(--color-accent);
  font-weight: 800;
}

.advantage-grid h3,
.application-grid h3,
.process-list h3 {
  margin: 22px 0 12px;
  font-size: 22px;
  line-height: 1.2;
}

.advantage-grid p,
.process-list p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.detail-panel {
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 42px;
}

.detail-panel h2 {
  font-size: clamp(30px, 3vw, 42px);
}

.check-list {
  display: grid;
  gap: 16px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: var(--color-dark);
}

.check-list li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  content: "";
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.application-grid article {
  min-height: 190px;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 28px;
  background: var(--color-white);
}

.application-grid h3 {
  margin-top: 0;
}

.application-grid p {
  margin: 0;
  color: var(--color-muted);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-border);
}

.process-list div {
  min-height: 250px;
  padding: 28px;
  background: var(--color-black);
  color: var(--color-white);
}

.process-list span {
  color: var(--color-accent);
  font-size: 34px;
  font-weight: 800;
}

.document-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.document-card {
  display: grid;
  min-height: 220px;
  align-content: space-between;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 26px;
  background: var(--color-white);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.document-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.document-card span {
  width: fit-content;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 800;
}

.document-card strong {
  margin-top: 48px;
  color: var(--color-black);
  font-size: 24px;
  line-height: 1.2;
}

.document-card small {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 14px;
}

.request-section {
  background: var(--color-accent);
}

.request-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 56px;
  align-items: start;
}

.request-section .section-kicker {
  color: var(--color-black);
}

.request-section p {
  max-width: 520px;
  color: rgba(0, 0, 0, 0.76);
  font-size: 18px;
}

.request-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  border-radius: 8px;
  padding: 30px;
  background: var(--color-white);
  box-shadow: var(--shadow);
}

.request-form label {
  display: grid;
  gap: 8px;
  color: var(--color-dark);
  font-size: 14px;
  font-weight: 800;
}

.request-form input,
.request-form textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  padding: 15px 16px;
  color: var(--color-black);
  outline: none;
}

.request-form textarea {
  resize: vertical;
}

.request-form input:focus,
.request-form textarea:focus {
  border-color: var(--color-black);
}

.wide {
  grid-column: 1 / -1;
}

.form-note {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--color-muted);
  font-size: 13px;
}

.site-footer {
  padding: 58px 0;
  background: var(--color-black);
  color: var(--color-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 0.8fr);
  gap: 44px;
}

.footer-brand {
  align-items: flex-start;
}

.footer-brand .brand-logo {
  filter: brightness(0) invert(1);
}

.footer-brand .brand-site-caption {
  color: rgba(255, 255, 255, 0.74);
}

.site-footer p,
.site-footer address,
.footer-contacts {
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.7);
  font-style: normal;
}

.site-footer strong {
  display: block;
  margin-bottom: 10px;
  color: var(--color-white);
}

.footer-contacts {
  display: grid;
  gap: 10px;
  margin-top: 0;
}

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

@media (max-width: 1020px) {
  .header-inner {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .nav-toggle {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: var(--color-white);
  }

  .nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--color-black);
  }

  .main-nav,
  .header-contact {
    display: none;
  }

  .main-nav.is-open {
    position: fixed;
    inset: 84px 0 auto;
    display: grid;
    justify-items: start;
    gap: 0;
    border-top: 1px solid var(--color-line);
    background: var(--color-white);
  }

  .main-nav.is-open a {
    width: 100%;
    border-bottom: 1px solid var(--color-line);
    padding: 18px 20px;
  }

  .hero,
  .hero-inner {
    min-height: 650px;
  }

  .split,
  .product-maker,
  .request-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .maker-facts,
  .advantage-grid,
  .application-grid,
  .document-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 24px, var(--container));
  }

  .header-inner {
    min-height: 72px;
  }

  .main-nav.is-open {
    top: 72px;
  }

  .brand-logo {
    width: 148px;
    height: auto;
  }

  .brand-site-caption {
    max-width: 150px;
    font-size: 12px;
  }

  .hero,
  .hero-inner {
    min-height: 720px;
  }

  .hero-media {
    background:
      linear-gradient(180deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.72)),
      url("../assets/images/pump-hero.jpg") center / cover;
  }

  .hero-text {
    font-size: 17px;
  }

  .hero-actions,
  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats,
  .maker-facts,
  .product-cards,
  .details-grid,
  .advantage-grid,
  .application-grid,
  .document-grid,
  .process-list,
  .mini-grid,
  .request-form {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 72px 0;
  }

  .product-card-body,
  .detail-panel,
  .request-form {
    padding: 24px;
  }

  .spec-list div {
    display: grid;
  }

  .spec-list dd {
    text-align: left;
  }
}