:root {
  color-scheme: light;
  --ink: #18232f;
  --muted: #5d6978;
  --line: #d8e0e8;
  --paper: #f7f8fa;
  --white: #ffffff;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --blue: #1d4ed8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 16px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(247, 248, 250, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 6px;
  background: var(--ink);
  color: var(--white);
  font-size: 0.82rem;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

nav a {
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible {
  color: var(--accent-dark);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 18px;
}

.language-switch {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
}

.language-switch button {
  min-width: 38px;
  min-height: 30px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 800;
}

.language-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--white);
}

.language-switch button:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.hero,
.section,
.band {
  padding-inline: clamp(20px, 5vw, 72px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 410px);
  gap: clamp(28px, 6vw, 80px);
  align-items: end;
  min-height: calc(100vh - 72px);
  padding-block: clamp(64px, 9vw, 120px);
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.10), transparent 42%),
    linear-gradient(0deg, #eef3f7, var(--paper));
}

.hero-content {
  max-width: 880px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(2.45rem, 7vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
  line-height: 1.2;
}

.lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.intro {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--ink);
  font-size: 1.05rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 750;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--white);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--accent-dark);
}

.button.secondary {
  background: var(--white);
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 22px 60px rgba(24, 35, 47, 0.08);
}

.hero-panel dl {
  margin: 0;
}

.hero-panel div {
  padding: 22px;
  border-bottom: 1px solid var(--line);
}

.hero-panel div:last-child {
  border-bottom: 0;
}

dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

dd {
  margin: 6px 0 0;
  font-size: 1.25rem;
  font-weight: 800;
}

.section,
.band {
  padding-block: clamp(64px, 8vw, 110px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

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

.service-grid article,
.method div,
.timeline article,
.contact-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 22px;
}

.service-grid p,
.method p,
.timeline p,
.profile-copy p,
.contact p,
footer p {
  margin: 0;
  color: var(--muted);
}

.method span {
  display: block;
  margin-bottom: 18px;
  color: var(--blue);
  font-weight: 850;
}

.band {
  background: var(--white);
  border-block: 1px solid var(--line);
}

.band .method div {
  background: var(--paper);
}

.timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.band .timeline article {
  background: var(--paper);
}

.evidence-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.evidence-list ul {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 22px 22px 22px 42px;
}

.evidence-list li {
  margin-bottom: 12px;
  color: var(--muted);
}

.evidence-list li:last-child {
  margin-bottom: 0;
}

.limits p {
  max-width: 960px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.split,
.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
  gap: clamp(24px, 6vw, 72px);
}

.profile-copy {
  display: grid;
  gap: 18px;
  font-size: 1.08rem;
}

.contact {
  align-items: center;
}

.contact-box {
  display: grid;
  gap: 12px;
}

.contact-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 58px;
  color: var(--ink);
  text-decoration: none;
}

.contact-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 6px;
  background: #e6f3f1;
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 900;
}

.contact-item strong,
.contact-item span span {
  display: block;
}

.contact-item strong {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.contact-item span span {
  color: var(--accent-dark);
  font-weight: 800;
}

.contact-item:hover span span,
.contact-item:focus-visible span span {
  text-decoration: underline;
}

.contact-item:focus-visible {
  border-radius: 6px;
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

footer {
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

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

  .hero {
    min-height: auto;
  }

  .service-grid,
  .method,
  .timeline,
  .evidence-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .header-tools {
    align-items: flex-start;
    flex-direction: column;
  }

  .service-grid,
  .method,
  .timeline,
  .evidence-list {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }
}