:root {
  --green-950: #052715;
  --green-900: #06371d;
  --green-800: #07552b;
  --green-600: #16843d;
  --green-400: #65bd2e;
  --mint: #dff4e3;
  --aqua: #bcebdc;
  --ink: #102017;
  --muted: #5d6a61;
  --line: #dce7df;
  --paper: #fbfbf6;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(7, 35, 18, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 28px;
  min-height: 76px;
  padding: 12px clamp(18px, 4vw, 56px);
  background: rgba(251, 251, 246, 0.9);
  border-bottom: 1px solid rgba(16, 32, 23, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 176px;
}

.brand img {
  width: 100%;
  height: auto;
}

.nav {
  display: flex;
  justify-content: center;
  gap: clamp(14px, 2.5vw, 34px);
  color: #24362a;
  font-size: 0.92rem;
  font-weight: 700;
}

.nav a,
.button,
.contact-links a,
.footer a {
  text-decoration: none;
}

.nav a {
  position: relative;
  padding: 8px 0;
}

.nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--green-600);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.hero {
  padding: 26px clamp(18px, 4vw, 56px) 0;
}

.hero-inner {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 110px);
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(42px, 7vw, 84px);
  overflow: hidden;
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(5, 39, 21, 0.96) 0%, rgba(6, 55, 29, 0.86) 42%, rgba(6, 55, 29, 0.34) 72%, rgba(5, 39, 21, 0.08) 100%),
    linear-gradient(180deg, rgba(5, 39, 21, 0.12), rgba(5, 39, 21, 0.46)),
    url("assets/propure-hero.jpg");
  background-position: center;
  background-size: cover;
  color: var(--white);
}

.hero-copy {
  max-width: 670px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green-400);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: var(--aqua);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 620px;
  margin-bottom: 22px;
  font-size: clamp(1.45rem, 3vw, 2.7rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4.3vw, 4.2rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.2;
}

.lead {
  max-width: 560px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions,
.impact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 900;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.button.primary {
  background: var(--white);
  color: var(--green-900);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.16);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.contact .button.primary {
  background: linear-gradient(135deg, var(--green-900), var(--green-600));
  color: var(--white);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(18px, 4vw, 56px);
  transform: translateY(-28px);
}

.proof-strip div {
  min-height: 112px;
  padding: 24px;
  background: var(--white);
  border: 1px solid rgba(16, 32, 23, 0.07);
  box-shadow: 0 18px 50px rgba(7, 35, 18, 0.08);
}

.proof-strip strong,
.impact-card strong,
.quote-grid strong {
  display: block;
  color: var(--green-900);
  font-size: 1.35rem;
  line-height: 1.05;
}

.proof-strip span,
.impact-card span,
.quote-grid span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(54px, 8vw, 96px) clamp(18px, 4vw, 56px);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
}

.copy-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  color: var(--muted);
  font-size: 1.08rem;
}

.bands {
  max-width: none;
  background: var(--white);
}

.bands > * {
  max-width: 1068px;
  margin-right: auto;
  margin-left: auto;
}

.section-heading {
  max-width: 790px;
  margin-bottom: 34px;
}

.section-heading p {
  color: var(--muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.service-card {
  overflow: hidden;
  min-height: 252px;
  padding: 0 28px 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f7fbf7);
}

.service-card p {
  color: var(--muted);
}

.service-card > img {
  width: calc(100% + 56px);
  height: 170px;
  margin: 0 -28px 24px;
  object-fit: cover;
}

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 42px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--green-900);
  font-weight: 900;
}

.process {
  padding-bottom: 58px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  padding: 0;
  list-style: none;
}

.timeline li {
  min-height: 190px;
  padding: 22px;
  border-top: 3px solid var(--green-600);
  background: rgba(255, 255, 255, 0.62);
}

.timeline span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--green-600);
  font-size: 1.4rem;
  font-weight: 900;
}

.timeline p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.impact {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1.22fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
}

.impact-copy p {
  max-width: 620px;
  color: var(--muted);
  font-size: 1.08rem;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.impact-card {
  min-height: 152px;
  padding: 22px;
  border: 1px solid rgba(6, 55, 29, 0.12);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(223, 244, 227, 0.9), rgba(255, 255, 255, 0.96));
}

.impact-card.highlight {
  background: linear-gradient(135deg, var(--green-950), #0c6b38);
}

.impact-card.wide {
  grid-column: span 2;
}

.impact-card.highlight strong,
.impact-card.highlight span {
  color: var(--white);
}

.quote {
  max-width: none;
  background: linear-gradient(135deg, var(--green-950), var(--green-800));
  color: var(--white);
}

.quote > * {
  max-width: 1068px;
  margin-right: auto;
  margin-left: auto;
}

.quote .section-heading p {
  color: rgba(255, 255, 255, 0.74);
}

.quote-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.quote-grid div {
  min-height: 150px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.quote-grid strong {
  color: var(--white);
}

.quote-grid span {
  color: rgba(255, 255, 255, 0.72);
}

.clients {
  padding: clamp(44px, 7vw, 76px) clamp(18px, 4vw, 56px);
  background: var(--white);
}

.clients-inner {
  max-width: 1068px;
  margin: 0 auto;
}

.logo-cloud {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.logo-cloud span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 96px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f7fbf7);
  text-align: center;
}

.logo-cloud img {
  max-width: 138px;
  max-height: 48px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1fr);
  gap: clamp(28px, 6vw, 82px);
  align-items: start;
}

.contact p {
  color: var(--muted);
}

.contact-links {
  display: grid;
  gap: 12px;
  margin-top: 26px;
  color: var(--green-900);
  font-size: 1.18rem;
  font-weight: 900;
}

.contact-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: #263b2e;
  font-size: 0.88rem;
  font-weight: 900;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #cbd9cf;
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--green-600);
  outline: 3px solid rgba(22, 132, 61, 0.16);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 4vw, 56px);
  background: var(--green-950);
  color: rgba(255, 255, 255, 0.76);
}

.footer span:first-child {
  color: var(--white);
  font-weight: 900;
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr;
  }

  .brand {
    width: 150px;
  }

  .nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero-inner,
  .split,
  .impact,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding: 34px;
  }

  .proof-strip,
  .service-grid,
  .timeline,
  .impact-grid,
  .quote-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .impact-card.wide {
    grid-column: span 2;
  }

  .logo-cloud {
    grid-template-columns: repeat(3, 1fr);
  }

  .copy-grid {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 620px) {
  .site-header {
    position: static;
    gap: 14px;
  }

  .hero {
    padding-top: 12px;
  }

  .hero-inner {
    padding: 26px 22px;
    background:
      linear-gradient(180deg, rgba(5, 39, 21, 0.9) 0%, rgba(6, 55, 29, 0.74) 58%, rgba(5, 39, 21, 0.42) 100%),
      url("assets/propure-hero.jpg");
    background-position: center;
    background-size: cover;
  }

  h1 {
    font-size: clamp(2.3rem, 14vw, 3.8rem);
  }

  .hero-actions,
  .impact-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .proof-strip,
  .service-grid,
  .timeline,
  .impact-grid,
  .logo-cloud,
  .quote-grid {
    grid-template-columns: 1fr;
  }

  .impact-card.wide {
    grid-column: auto;
  }

  .proof-strip {
    transform: none;
    margin-top: 14px;
  }

  .service-card,
  .timeline li {
    min-height: auto;
  }

}