:root {
  --green: #0b6531;
  --green-dark: #063d22;
  --ink: #15231d;
  --muted: #65736d;
  --line: #dce4df;
  --bg: #f6f8f6;
  --white: #ffffff;
  --soft: #e8f2ec;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 82px;
  padding: 14px clamp(18px, 4vw, 64px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  min-width: 185px;
}

.brand img {
  width: 180px;
  max-width: 36vw;
  height: auto;
  display: block;
}

nav {
  display: flex;
  flex: 1;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

nav a,
.login-link,
.button {
  text-decoration: none;
  border-radius: 6px;
  font-weight: 700;
}

nav a {
  padding: 10px 12px;
  color: var(--muted);
  font-size: 14px;
}

nav a:hover {
  color: var(--green);
  background: var(--soft);
}

.login-link {
  padding: 11px 16px;
  color: var(--white);
  background: var(--green);
  white-space: nowrap;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 28px;
  align-items: stretch;
  min-height: calc(100vh - 82px);
  padding: clamp(42px, 7vw, 92px) clamp(18px, 5vw, 80px);
  background:
    linear-gradient(120deg, rgba(6, 61, 34, 0.96), rgba(11, 101, 49, 0.84)),
    url("logo-green-tek.jpg") right 8% center / 360px auto no-repeat;
  color: var(--white);
}

.hero-copy {
  align-self: center;
  max-width: 850px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow,
.band .eyebrow,
.contact .eyebrow {
  color: #a9e6bf;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 8px 0;
  font-size: 20px;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  margin: 24px 0 0;
  font-size: clamp(18px, 2.2vw, 25px);
  color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
}

.button.primary {
  color: var(--green-dark);
  background: var(--white);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.42);
}

.hero-panel {
  align-self: end;
  display: grid;
  gap: 14px;
}

.hero-panel span {
  display: block;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
}

.section,
.cards,
.band,
.contact {
  padding: clamp(42px, 6vw, 74px) clamp(18px, 5vw, 80px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  background: var(--white);
}

.intro p:last-child,
.section-title p {
  color: var(--muted);
  font-size: 18px;
}

.cards.three {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.cards article,
.service-grid article,
.timeline article {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 8px;
}

.cards article {
  padding: 28px;
}

.cards strong {
  color: var(--green);
  font-size: 28px;
}

.cards p,
.service-grid p,
.timeline p {
  color: var(--muted);
  margin-bottom: 0;
}

.section-title {
  max-width: 860px;
  margin-bottom: 28px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-grid article {
  padding: 22px;
}

.service-grid span,
.timeline span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--white);
  background: var(--green);
  border-radius: 50%;
  font-weight: 800;
}

.band {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(0, 1fr);
  gap: 34px;
  background: var(--green-dark);
  color: var(--white);
}

.band ul {
  margin: 0;
  padding-left: 20px;
  color: rgba(255, 255, 255, 0.86);
}

.band li + li {
  margin-top: 12px;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.timeline article {
  padding: 20px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(300px, 0.7fr);
  gap: 28px;
  color: var(--white);
  background: linear-gradient(120deg, var(--green-dark), var(--green));
}

.contact p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 18px;
}

address {
  display: grid;
  gap: 10px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  font-style: normal;
}

address a {
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 22px clamp(18px, 5vw, 80px);
  color: var(--muted);
  background: var(--white);
  border-top: 1px solid var(--line);
}

@media (max-width: 980px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    justify-content: flex-start;
  }

  .hero,
  .intro,
  .band,
  .contact {
    grid-template-columns: 1fr;
  }

  .cards.three,
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 620px) {
  .brand img {
    max-width: 240px;
    width: 72vw;
  }

  nav {
    display: none;
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(120deg, rgba(6, 61, 34, 0.97), rgba(11, 101, 49, 0.9)),
      url("logo-green-tek.jpg") center 18px / 220px auto no-repeat;
    padding-top: 132px;
  }

  h1 {
    font-size: 40px;
  }

  .cards.three,
  .service-grid {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
  }
}