/* Green Cleaning Technology — eco palette: forest, sage, cream, sky accent */

:root {
  --color-bg: #f4f7f4;
  --color-bg-alt: #e8efe8;
  --color-surface: #ffffff;
  --color-ink: #1a2e24;
  --color-muted: #4a5c52;
  --color-accent: #2d6a4f;
  --color-accent-dark: #1b4332;
  --color-leaf: #74c69d;
  --color-sky: #b7e0ff;
  --color-border: #c5d4c9;
  --shadow-soft: 0 18px 45px rgba(27, 67, 50, 0.12);
  --radius: 14px;
  --radius-sm: 10px;
  --font-sans:
    "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue",
    Arial, sans-serif;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-accent-dark);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent-dark);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.container--narrow {
  max-width: 720px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.top-bar {
  background: linear-gradient(90deg, var(--color-accent-dark), #1d5c44);
  color: #e9f5ef;
  font-size: 0.9rem;
}

.top-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  padding: 0.45rem 0;
}

.top-bar__link {
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.top-bar__link:hover {
  text-decoration: underline;
  color: #fff;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
}

.brand__mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: radial-gradient(
    circle at 30% 30%,
    var(--color-leaf),
    var(--color-accent)
  );
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.35);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand__name {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.brand__domain {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.65rem;
  cursor: pointer;
}

.nav-toggle__bar {
  width: 22px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  font-weight: 600;
  color: var(--color-ink);
  text-decoration: none;
}

.site-nav__list a:hover {
  color: var(--color-accent);
}

.site-nav__cta {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease,
    transform 0.15s ease;
}

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

.btn--primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.btn--secondary {
  background: #fff;
  color: var(--color-accent-dark);
  border-color: var(--color-accent);
}

.btn--secondary:hover {
  background: var(--color-bg-alt);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent-dark);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-accent);
}

.btn--lg {
  padding: 0.75rem 1.35rem;
  font-size: 1rem;
}

.btn--light {
  background: #545a57;
  color: var(--color-accent-dark);
}

.btn--light:hover {
  background: var(--color-bg-alt);
  color: var(--color-accent-dark);
}

.btn--ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}

.btn--ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.hero {
  padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(
      1200px 500px at 10% -10%,
      rgba(116, 198, 157, 0.35),
      transparent 55%
    ),
    radial-gradient(
      900px 400px at 90% 0%,
      rgba(183, 224, 255, 0.35),
      transparent 50%
    ),
    linear-gradient(180deg, #f7faf7, var(--color-bg));
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.hero__copy h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin: 0.35rem 0 1rem;
  color: var(--color-accent-dark);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0;
}

.lead {
  font-size: 1.1rem;
  color: var(--color-muted);
  margin: 0 0 1.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.hero__bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.hero__bullets li {
  position: relative;
  padding-left: 1.35rem;
}

.hero__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--color-leaf);
  box-shadow: 0 0 0 3px rgba(116, 198, 157, 0.25);
}

.hero__panel {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.25rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(197, 212, 201, 0.8);
}

.hero__panel-title {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  color: var(--color-accent-dark);
}

.hero__panel-list {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
  color: var(--color-muted);
}

.hero__panel-foot {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.section {
  padding: clamp(2.75rem, 5vw, 4.25rem) 0;
}

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

.section--dark {
  background: linear-gradient(135deg, var(--color-accent-dark), #143728);
  color: #e6f4ea;
}

.section--dark a {
  color: #c8f7dc;
}

.section--dark a:hover {
  color: #fff;
}

.section__head {
  max-width: 720px;
  margin-bottom: 2rem;
}

.section__head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  color: var(--color-accent-dark);
}

.section__head p {
  margin: 0;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.section--dark .section__head h2,
.section--dark .section__lede {
  color: #f0fff4;
}

.section__lede {
  font-size: 1.1rem;
  max-width: 820px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem 1.35rem;
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 30px rgba(27, 67, 50, 0.06);
}

.card__title {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
  color: var(--color-accent-dark);
}

.card__body {
  margin: 0 0 0.85rem;
  color: var(--color-muted);
  font-size: 0.98rem;
}

.card__list {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--color-ink);
  font-size: 0.92rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.split h2 {
  margin-top: 0;
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  color: var(--color-accent-dark);
}

.split > div > p:first-of-type {
  color: var(--color-muted);
  font-size: 1.05rem;
}

.facts {
  margin: 1.5rem 0 0;
}

.facts div {
  margin-bottom: 1.1rem;
}

.facts dt {
  font-weight: 700;
  color: var(--color-accent-dark);
}

.facts dd {
  margin: 0.25rem 0 0;
  color: var(--color-muted);
}

.quote-block {
  margin: 0;
  background: #fff;
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  border-left: 4px solid var(--color-leaf);
  box-shadow: var(--shadow-soft);
}

.quote-block blockquote {
  margin: 0;
}

.quote-block p {
  font-size: 1.05rem;
  color: var(--color-ink);
}

.quote-block figcaption {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.faq details {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  margin-bottom: 0.65rem;
}

.faq summary {
  font-weight: 700;
  cursor: pointer;
  color: var(--color-accent-dark);
}

.faq details[open] {
  box-shadow: 0 8px 24px rgba(27, 67, 50, 0.06);
}

.faq p {
  margin: 0.65rem 0 0;
  color: var(--color-muted);
}

.cta-band {
  background: linear-gradient(120deg, #40916c, #2d6a4f);
  color: #f1fff6;
}

.cta-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cta-band h2 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-band p {
  margin: 0;
}

.cta-band a {
  color: #e0fff0;
}

.cta-band a:hover {
  color: #fff;
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-footer {
  background: #0f241c;
  color: #c7d8cf;
  padding: 2.5rem 0 1.5rem;
  font-size: 0.95rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.footer__brand {
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.footer__meta {
  margin: 0;
}

.footer__label {
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.35rem;
}

.site-footer a {
  color: #9fe8c1;
}

.site-footer a:hover {
  color: #fff;
}

.footer__legal {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 2rem;
  padding-top: 1rem;
  font-size: 0.85rem;
  color: #9fb3a8;
}

@media (max-width: 960px) {
  .hero__grid,
  .cards,
  .split,
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.25rem 1.25rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    display: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }
}