:root {
  --navy: #15274b;
  --orange: #e85d20;
  --text: #2d3439;
  --muted: #6b7280;
  --border: #dfe3e7;
  --surface: #f5f7f9;
  --white: #fff;
  --content-width: 1140px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: #bd3d16;
  text-decoration: none;
}

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

button,
summary,
a {
  outline-offset: 3px;
}

.container {
  width: min(100% - 2rem, var(--content-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 100;
  padding: 0.6rem 0.9rem;
  background: var(--white);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  background: var(--white);
}

.header-bar {
  display: flex;
  min-height: 86px;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  color: var(--navy);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.site-logo:hover {
  text-decoration: none;
}

.menu-button {
  display: none;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--navy);
  background: var(--white);
  color: var(--navy);
  cursor: pointer;
  font: inherit;
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
}

.menu-icon {
  position: relative;
}

.menu-icon::before,
.menu-icon::after {
  position: absolute;
  left: 0;
  content: "";
}

.menu-icon::before {
  top: -7px;
}

.menu-icon::after {
  top: 7px;
}

.site-navigation {
  background: var(--navy);
}

.navigation-list {
  display: flex;
  margin-block: 0;
  padding-left: 0;
  list-style: none;
}

.navigation-list a {
  display: block;
  padding: 0.9rem 0.85rem;
  color: var(--white);
  font-size: 0.92rem;
}

.navigation-list a:hover,
.navigation-list a:focus-visible,
.navigation-list a.active {
  background: var(--orange);
  text-decoration: none;
}

.page-banner {
  padding: 3.5rem 0 4rem;
  background: linear-gradient(135deg, #0f3347, var(--navy));
  color: var(--white);
}

.page-banner h1 {
  margin: 1.2rem 0 0;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.92rem;
}

.breadcrumbs li:not(:last-child)::after {
  margin-left: 0.55rem;
  content: "/";
  opacity: 0.65;
}

.breadcrumbs a {
  color: var(--white);
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(250px, 1fr);
  gap: 3rem;
  padding-block: 4rem;
}

.blog-article {
  font-size: 1.03rem;
}

.blog-article > p:first-child {
  margin-top: 0;
  font-size: 1.12rem;
}

.preparation-tips {
  margin: 2rem 0;
  padding-left: 1.5rem;
}

.preparation-tips > li {
  margin-bottom: 1.75rem;
  padding-left: 0.5rem;
}

.preparation-tips h2 {
  margin: 0 0 0.4rem;
  color: var(--navy);
  font-size: 1.25rem;
  line-height: 1.35;
}

.preparation-tips p {
  margin: 0;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding: 1rem 0;
  border-block: 1px solid var(--border);
  font-size: 0.9rem;
}

.article-footer p {
  margin: 0;
}

.share-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.blog-sidebar {
  padding-left: 2rem;
  border-left: 1px solid var(--border);
}

.sidebar-widget + .sidebar-widget {
  margin-top: 2.5rem;
}

.sidebar-widget > h2 {
  margin: 0 0 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
  color: var(--navy);
  font-size: 1.25rem;
}

.archive-list details {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
}

.archive-list summary {
  color: #bd3d16;
  cursor: pointer;
  font-weight: 700;
}

.archive-list summary span {
  color: var(--muted);
  font-weight: 400;
}

.archive-list ul {
  margin: 0.65rem 0 0;
  padding-left: 1.5rem;
}

.archive-list li {
  margin-bottom: 0.3rem;
}

.related-post-title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.5;
}

.site-footer {
  padding-top: 3rem;
  background: var(--navy);
  color: #d8deea;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.footer-grid h2 {
  margin: 0 0 0.9rem;
  color: var(--white);
  font-size: 1rem;
  text-transform: uppercase;
}

.footer-grid ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-grid li {
  margin-bottom: 0.4rem;
}

.footer-grid a,
.copyright a {
  color: #d8deea;
}

.copyright {
  display: flex;
  justify-content: space-between;
  margin-top: 2.5rem;
  padding-block: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

@media (max-width: 900px) {
  .menu-button {
    display: flex;
  }

  .site-navigation {
    display: none;
  }

  .site-navigation.is-open {
    display: block;
  }

  .navigation-list {
    display: block;
    padding-block: 0.5rem;
  }

  .navigation-list a {
    padding: 0.7rem 0.85rem;
  }

  .content-layout {
    grid-template-columns: 1fr;
  }

  .blog-sidebar {
    padding: 2rem 0 0;
    border-top: 1px solid var(--border);
    border-left: 0;
  }
}

@media (max-width: 650px) {
  .header-bar {
    min-height: 70px;
  }

  .page-banner {
    padding: 2.5rem 0 3rem;
  }

  .content-layout {
    gap: 2rem;
    padding-block: 2.5rem;
  }

  .article-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 420px) {
  .menu-button-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }

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