@media (max-width: 600px) {
  html, body { width: 100%; overflow-x: hidden; }
  .site-header { height: 64px; padding: 0 14px; }
  .site-header .logo img { width: 118px; height: 50px; object-fit: contain; }
  .top-cta { padding: 11px 12px; font-size: 11px; white-space: nowrap; }

  .hero {
    min-height: auto;
    height: auto;
    padding: 98px 22px 38px;
    display: block;
  }
  .hero h1 { font-size: clamp(50px, 14vw, 66px); line-height: .86; letter-spacing: -.08em; margin: 0 0 24px; }
  .hero p { max-width: 31ch; font-size: 16px; line-height: 1.45; margin: 0; }
  .hero-trust { display: block; margin-top: 18px; font-size: 12px; line-height: 1.35; }
  .hero-ctas { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
  .preview-hero-link { margin: 0; padding: 14px 16px; font-size: 11px; }
  .hero-secondary { font-size: 11px; }
  .hero-tank { width: 100%; margin: 28px 0 0; }
  .hero-tank img { width: 100%; max-height: 265px; object-fit: contain; }
  .hero-tank small { display: none; }
  .hero-actions, .scroll-hint { display: none; }

  .services-impact, .service-section { padding: 70px 22px 58px; }
  .services-heading, .section-intro { display: block; margin-bottom: 28px; }
  .services-heading h2, .service-section .section-intro h2 { font-size: clamp(42px, 12vw, 58px); line-height: .9; margin: 12px 0 20px; }
  .services-heading p, .service-section .section-intro p { max-width: 30ch; margin: 0; font-size: 15px; line-height: 1.45; }
  .impact-grid, .service-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
  .impact-service { min-height: 280px; padding: 22px; }
  .service-grid article, .service-grid article:first-child { min-height: 350px; padding: 20px; }
  .service-grid article:after { top: 3%; height: 62%; }
  .service-grid article h3 { font-size: 25px; }

  .quote-banner, .gr-process, .gr-work, .gr-voices, .gr-coverage { padding: 62px 22px; }
  .quote-banner { min-height: 0; }
  .quote-banner h2 { font-size: clamp(38px, 11vw, 54px); }
  .quote-banner p { font-size: 15px; line-height: 1.45; }
  .quote-banner-actions { gap: 8px; }
  .quote-banner-actions a { min-height: 44px; padding: 0 15px; font-size: 12px; }

  .tank-packages { padding: 66px 18px 58px; }
  .packages-head { margin-bottom: 28px; }
  .packages-head h2 { font-size: clamp(42px, 12vw, 58px); line-height: .9; }
  .packages-head p { font-size: 15px; line-height: 1.45; }
  .package-price { width: 100%; padding: 13px 14px; gap: 5px; flex-wrap: wrap; font-size: 14px; }
  .package-grid { grid-template-columns: 1fr; gap: 14px; }
  .package-card { min-height: 0; padding: 18px; }
  .tank-shot { height: 205px; }
  .package-card h3 { font-size: 24px; }
  .capacity-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; font-size: 11px; }

  .about-gr { padding: 56px 18px; }
  .about-gr-shell { display: flex; flex-direction: column; gap: 30px; }
  .about-gr-visual { min-height: 330px; }
  .about-gr-visual img { max-height: 255px; object-fit: cover; }
  .about-gr-content h2 { font-size: clamp(46px, 13vw, 62px); line-height: .86; }
  .about-gr-content > p { font-size: 15px; line-height: 1.5; }
  .about-gr-columns { grid-template-columns: 1fr; gap: 18px; }
  .about-values { gap: 7px; }
  .about-values span { padding: 9px 10px; font-size: 10px; }

  .gr-section-head { margin-bottom: 28px; }
  .gr-section-head h2 { font-size: clamp(42px, 12vw, 58px); }
  .gr-section-head p { font-size: 15px; line-height: 1.45; }
  .gr-process-grid, .gr-work-grid, .gr-voices-grid, .gr-coverage-inner, .gr-trust-inner { grid-template-columns: 1fr; gap: 12px; }
  .gr-step { min-height: 170px; padding: 19px; }
  .gr-project { min-height: 325px; padding: 20px; }
  .gr-trust { padding: 62px 22px; }
  .gr-trust-list { grid-template-columns: 1fr 1fr; gap: 8px; }
  .gr-trust-item { padding: 16px; }
  .gr-coverage h2 { font-size: clamp(42px, 12vw, 58px); }

  .quote { display: block; padding: 62px 22px; }
  .quote form { margin-top: 28px; padding: 22px; }
  .faq { padding: 62px 22px; }
  footer { padding: 44px 22px; }
  .float-wa, .chatbot-toggle { right: 14px; bottom: 14px; }
}

@media (max-width: 360px) {
  .site-header .logo img { width: 105px; }
  .top-cta { font-size: 10px; padding-inline: 9px; }
  .hero h1 { font-size: 48px; }
  .gr-trust-list, .capacity-list { grid-template-columns: 1fr; }
}