:root {
  --bg: #f5f8fb;
  --surface: #ffffff;
  --surface-soft: #edf6f3;
  --text: #17212b;
  --muted: #5e6b78;
  --line: #dce5ec;
  --green: #16825d;
  --green-dark: #0f6147;
  --blue: #1769aa;
  --blue-soft: #e8f2fb;
  --gold: #b68118;
  --gold-soft: #fff4d8;
  --shadow: 0 14px 34px rgba(23, 33, 43, 0.08);
  --radius: 8px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

a:hover,
a:focus {
  text-decoration: underline;
}

h1,
h2,
h3 {
  margin: 0 0 12px;
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  font-size: 2.2rem;
}

h2 {
  font-size: 1.55rem;
}

h3 {
  font-size: 1.08rem;
}

p {
  margin: 0 0 16px;
}

ul {
  margin: 0;
  padding-left: 20px;
}

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(100% - 32px, 860px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0;
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--blue));
  font-size: 0.85rem;
  font-weight: 800;
}

.brand span:last-child {
  white-space: nowrap;
}

.brand-logo {
  display: block;
  width: min(210px, 52vw);
  height: auto;
  max-height: 52px;
  object-fit: contain;
}

.footer-brand .brand-logo {
  width: min(220px, 100%);
}

.menu-toggle {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: var(--surface);
  font-weight: 800;
  letter-spacing: 0;
  cursor: pointer;
}

.site-nav {
  position: absolute;
  left: 16px;
  right: 16px;
  top: 76px;
  display: none;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.site-nav.is-open {
  display: grid;
  gap: 4px;
}

.site-nav a {
  display: block;
  min-height: 44px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus,
.site-nav a[aria-current="page"] {
  color: var(--green-dark);
  background: var(--surface-soft);
  text-decoration: none;
}

.hero {
  padding: 44px 0 28px;
  background:
    linear-gradient(180deg, #ffffff 0%, #f5f8fb 100%);
}

.hero-grid,
.page-hero-grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-subtitle,
.page-hero p {
  color: var(--muted);
  font-size: 1.04rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  text-align: center;
}

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

.button-primary {
  color: #fff;
  background: var(--green);
}

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

.button-secondary {
  color: var(--blue);
  border-color: #b8d5ea;
  background: var(--blue-soft);
}

.hero-media,
.page-hero-grid img {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.section {
  padding: 44px 0;
}

.soft-section {
  background: #eef6f8;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 24px;
}

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

.card-grid {
  display: grid;
  gap: 16px;
}

.card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 10px 24px rgba(23, 33, 43, 0.05);
}

.platform-card img {
  margin-bottom: 16px;
  border-radius: 8px;
  background: var(--blue-soft);
}

.platform-card p,
.issue-card p,
.content-card p,
.support-list span,
.form-note {
  color: var(--muted);
}

.text-link {
  display: inline-flex;
  align-items: center;
  margin-top: 6px;
  font-weight: 800;
}

.issue-grid {
  display: grid;
  gap: 14px;
}

.issue-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.icon-dot {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-bottom: 14px;
  border-radius: 999px;
}

.icon-dot.green {
  background: var(--green);
}

.icon-dot.blue {
  background: var(--blue);
}

.icon-dot.gold {
  background: var(--gold);
}

.split-grid {
  display: grid;
  gap: 16px;
}

.content-block,
.content-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.accent-block {
  background: linear-gradient(180deg, #fff, #edf6f3);
}

.page-hero {
  padding: 24px 0 36px;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.page-hero.compact {
  padding-bottom: 40px;
}

.page-hero.compact h1 {
  max-width: 820px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--blue);
  font-weight: 700;
}

.breadcrumb span::before {
  content: "/";
  margin-right: 8px;
  color: #97a6b2;
}

.article-layout {
  background: var(--bg);
}

.article-layout .content-card + .content-card {
  margin-top: 18px;
}

.content-card h2 {
  font-size: 1.35rem;
}

.check-list {
  display: grid;
  gap: 10px;
  padding-left: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--muted);
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.warning-card {
  border-color: #f0d28c;
  background: var(--gold-soft);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.faq-list summary {
  min-height: 50px;
  padding: 14px 16px;
  cursor: pointer;
  font-weight: 800;
}

.faq-list details p {
  padding: 0 16px 16px;
  margin: 0;
  color: var(--muted);
}

.mini-link-grid {
  display: grid;
  gap: 12px;
}

.mini-link-grid a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfd;
  font-weight: 800;
}

.contact-grid {
  display: grid;
  gap: 18px;
}

.support-list {
  display: grid;
  gap: 14px;
}

.support-list div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbfd;
}

.support-list strong,
.support-list span {
  display: block;
}

.support-list strong {
  margin-bottom: 4px;
}

.contact-form {
  display: grid;
  gap: 10px;
}

.contact-form label {
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.form-note {
  margin: 0;
  font-size: 0.92rem;
}

.site-footer {
  padding: 36px 0;
  background: #13222f;
  color: #dce8f0;
}

.footer-grid {
  display: grid;
  gap: 24px;
}

.site-footer .brand,
.site-footer h2 {
  color: #fff;
}

.site-footer h2 {
  margin-bottom: 10px;
  font-size: 1rem;
}

.site-footer p {
  color: #b8c7d1;
}

.site-footer a {
  display: block;
  color: #dce8f0;
  min-height: 30px;
}

.footer-brand {
  display: inline-flex;
  margin-bottom: 14px;
}

.disclaimer {
  margin-top: 14px;
  font-size: 0.92rem;
}

@media (min-width: 560px) {
  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .button {
    min-width: 190px;
  }

  .card-grid,
  .issue-grid,
  .mini-link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-nav a {
    min-height: 40px;
    padding: 8px 10px;
    font-size: 0.92rem;
  }

  .hero {
    padding: 70px 0 46px;
  }

  .hero-grid,
  .page-hero-grid,
  .split-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  }

  .page-hero-grid {
    gap: 40px;
  }

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

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

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .section {
    padding: 60px 0;
  }

  h1 {
    font-size: 3.7rem;
  }

  h2 {
    font-size: 2.1rem;
  }

  .content-card h2 {
    font-size: 1.75rem;
  }
}

@media (min-width: 1040px) {
  .site-nav a {
    padding: 8px 12px;
  }
}