:root {
  --bg: #f6f8f6;
  --surface: #ffffff;
  --surface-soft: #eef4f1;
  --text: #243231;
  --muted: #647371;
  --green: #4f7668;
  --green-dark: #315449;
  --blue: #42657b;
  --line: #dce6e1;
  --shadow: 0 22px 60px rgba(36, 50, 49, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(79, 118, 104, 0.14), transparent 32rem),
    linear-gradient(135deg, #f8faf8 0%, var(--bg) 45%, #eef3f5 100%);
  font-family: "Inter", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--green-dark);
  text-decoration: underline;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(220, 230, 225, 0.9);
  background: rgba(246, 248, 246, 0.9);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(1120px, calc(100% - 40px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}

.brand:hover,
.brand:focus {
  text-decoration: none;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: linear-gradient(135deg, var(--green), var(--blue));
  font-family: "Libre Baskerville", Georgia, serif;
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-list a:hover,
.nav-list a:focus,
.nav-list a.active {
  color: #ffffff;
  background: var(--green-dark);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--green-dark);
}

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

.tab-panel {
  padding: 84px 0;
}

.tab-panel[hidden] {
  display: none;
}

.hero {
  min-height: calc(100vh - 201px);
  display: flex;
  align-items: center;
}

.grid,
.contact-grid {
  display: grid;
  gap: 44px;
}

.hero-grid {
  grid-template-columns: minmax(200px, 0.5fr) minmax(0, 1.15fr) minmax(260px, 0.65fr);
  align-items: center;
}

.hero-photo {
  margin: 0;
}

.hero-photo img {
  display: block;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.hero-copy,
.section-heading {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.18;
}

h1,
h2 {
  font-family: "Libre Baskerville", Georgia, serif;
}

h1 {
  font-size: clamp(30px, 4.5vw, 44px);
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
  letter-spacing: -0.03em;
}

h3 {
  color: var(--green-dark);
  font-size: 20px;
}

.subtitle {
  margin: 10px 0 28px;
  color: var(--blue);
  font-size: 24px;
  font-weight: 600;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus {
  text-decoration: none;
  transform: translateY(-1px);
}

.button.primary {
  color: #ffffff;
  background: var(--green-dark);
  box-shadow: 0 12px 28px rgba(49, 84, 73, 0.23);
}

.button.secondary {
  color: var(--green-dark);
  border-color: var(--green);
  background: rgba(255, 255, 255, 0.7);
}

.hero-card,
.service-card,
.timeline-block,
.contact-form {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 34px;
}

.hero-card h2 {
  margin: 10px 0 16px;
  font-size: 32px;
}

.card-kicker {
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-heading {
  margin-bottom: 36px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  min-height: 270px;
  padding: 28px;
}

.service-card p {
  margin-bottom: 18px;
}

.service-card span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-block {
  position: relative;
  padding: 30px 32px 30px 38px;
  overflow: hidden;
}

.timeline-block::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: linear-gradient(180deg, var(--green), var(--blue));
}

.timeline-block ul,
.contact-list {
  margin: 18px 0 0;
  padding-left: 22px;
}

.timeline-block li + li,
.contact-list li + li {
  margin-top: 10px;
}

.contact-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  align-items: start;
}

.contact-form {
  padding: 30px;
}

.contact-form label {
  display: block;
  margin-bottom: 8px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-bottom: 18px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: #ffffff;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 3px solid rgba(79, 118, 104, 0.18);
  border-color: var(--green);
}

.contact-form textarea {
  resize: vertical;
}

.site-footer {
  padding: 28px 20px;
  border-top: 1px solid var(--line);
  color: #52615f;
  background: #263331;
  text-align: center;
  font-size: 12px;
}

.site-footer p {
  margin: 4px 0;
  color: #d6dfdc;
}

@media (max-width: 920px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .hero-photo img {
    max-width: 280px;
  }
}

@media (max-width: 720px) {
  .nav {
    min-height: 68px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-list {
    position: absolute;
    top: 68px;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow);
  }

  .nav-list.open {
    display: flex;
  }

  .nav-list a {
    justify-content: center;
  }

  .tab-panel {
    padding: 54px 0;
  }

  .hero {
    min-height: auto;
  }

  .hero-photo {
    order: -1;
  }

  .hero-photo img {
    max-width: 240px;
  }

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

  .service-card {
    min-height: auto;
  }

  .actions,
  .button {
    width: 100%;
  }
}