:root {
  --bg: #f6faf9;
  --paper: #ffffff;
  --ink: #10242b;
  --muted: #5d7078;
  --line: #d9e8e5;
  --brand: #0f766e;
  --brand-dark: #0b4f4a;
  --accent: #e6f4f1;
  --warm: #fff7e8;
  --shadow: 0 18px 45px rgba(30, 64, 72, .10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.top-note,
.header-main,
.hero,
.brief-grid,
.page-grid,
.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.top-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.top-note span {
  width: max-content;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--brand-dark);
  color: #fff;
  font-weight: 900;
  box-shadow: 0 10px 22px rgba(15, 118, 110, .22);
}

.brand strong {
  display: block;
  font-size: 20px;
  line-height: 1.15;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.3;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.main-nav a {
  padding: 9px 12px;
  border-radius: 999px;
  color: #24454d;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.main-nav a:hover {
  background: var(--accent);
  color: var(--brand-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: 30px;
  align-items: stretch;
  padding: 42px 0 22px;
}

.hero-copy,
.hero-card,
.brief-grid article,
.article,
.side-card,
.contact-card {
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 42px;
  border-radius: 28px;
}

.kicker,
.section-label {
  margin: 0 0 12px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: .98;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  color: #334950;
  font-size: 20px;
  line-height: 1.55;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 26px;
}

.meta-row span {
  padding: 8px 11px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 800;
}

.hero-card {
  margin: 0;
  border-radius: 28px;
  overflow: hidden;
}

.hero-card img {
  width: 100%;
  height: 390px;
  object-fit: cover;
  background: #eef8f5;
}

.hero-card figcaption {
  padding: 18px 20px 22px;
  color: var(--muted);
  font-size: 14px;
}

.brief-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 18px 0 32px;
}

.brief-grid article {
  padding: 22px;
  border-radius: 22px;
}

.brief-grid span {
  color: var(--brand);
  font-size: 13px;
  font-weight: 900;
}

.brief-grid h2 {
  margin: 8px 0 8px;
  font-size: 21px;
  line-height: 1.2;
}

.brief-grid p {
  margin: 0;
  color: var(--muted);
}

.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  align-items: start;
  padding-bottom: 44px;
}

.article {
  padding: 38px;
  border-radius: 24px;
}

.article h2 {
  margin: 26px 0 12px;
  font-size: 30px;
  line-height: 1.16;
}

.article p {
  color: #263d44;
  font-size: 18px;
}

blockquote {
  margin: 30px 0;
  padding: 24px;
  border-left: 5px solid var(--brand);
  border-radius: 18px;
  background: var(--warm);
  color: #1a333a;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.35;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 22px 0;
}

.check-list div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fbfefd;
}

.check-list strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.check-list p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.soft-panel {
  margin-top: 30px;
  padding: 24px;
  border-radius: 22px;
  background: linear-gradient(135deg, #e8f7f3, #ffffff);
  border: 1px solid var(--line);
}

.soft-panel h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.soft-panel p {
  margin-bottom: 0;
}

.sidebar {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 104px;
}

.side-card,
.contact-card {
  padding: 24px;
  border-radius: 24px;
}

.side-card h2,
.contact-card h2 {
  margin-bottom: 14px;
  font-size: 24px;
  line-height: 1.2;
}

.side-card ol {
  margin: 0;
  padding-left: 20px;
  color: #314850;
}

.side-card li + li {
  margin-top: 10px;
}

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

form {
  display: grid;
  gap: 13px;
}

label {
  display: grid;
  gap: 6px;
  color: #263d44;
  font-size: 14px;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid #bcd4d0;
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  padding: 13px 14px;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(15, 118, 110, .18);
  border-color: var(--brand);
}

button {
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font: inherit;
  font-weight: 900;
  cursor: default;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 28px 0 38px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  max-width: 680px;
  margin: 0;
}

@media (max-width: 900px) {
  .hero,
  .page-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

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

@media (max-width: 640px) {
  .top-note,
  .header-main,
  .hero,
  .brief-grid,
  .page-grid,
  .site-footer {
    width: min(100% - 24px, 1120px);
  }

  .site-header {
    position: static;
  }

  .header-main {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .main-nav {
    justify-content: flex-start;
  }

  .hero {
    padding-top: 24px;
  }

  .hero-copy,
  .article {
    padding: 24px;
    border-radius: 22px;
  }

  h1 {
    font-size: 36px;
    line-height: 1.05;
  }

  .lead,
  .article p {
    font-size: 17px;
  }

  .hero-card img {
    height: 270px;
  }

  .article h2 {
    font-size: 26px;
  }

  blockquote {
    font-size: 19px;
  }
}