@import url('../site-shell.css');

:root {
  --navy: #06163a;
  --blue: #092e68;
  --cyan: #00d4ff;
  --mint: #b2f5ea;
  --ink: #17233f;
  --muted: #5e6d83;
  --paper: #ffffff;
  --wash: #f4f9fd;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--muted);
  background: var(--wash);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
}

a { color: inherit; }

.site-header {
  background: linear-gradient(102deg, #081b36 0%, #0b4386 54%, #016ffb 100%);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1140px, calc(100% - 32px));
  min-height: 92px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  color: #fff;
  font-weight: 800;
  letter-spacing: .04em;
  text-decoration: none;
}

.brand img {
  width: 62px;
  height: 62px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  padding: 26px 16px;
  color: #fff;
  font-size: 14px;
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--mint);
}

.article-hero {
  padding: 78px 16px 84px;
  color: #fff;
  background:
    radial-gradient(circle at 12% 18%, rgba(0, 212, 255, .22), transparent 28%),
    radial-gradient(circle at 90% 80%, rgba(0, 212, 255, .15), transparent 31%),
    linear-gradient(120deg, var(--navy), var(--blue) 68%, #0b72ae);
}

.article-hero-inner {
  width: min(880px, 100%);
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  padding: 6px 13px;
  border: 1px solid rgba(0, 212, 255, .5);
  border-radius: 999px;
  color: var(--mint);
  background: rgba(0, 212, 255, .1);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.article-hero h1 {
  max-width: 800px;
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.12;
}

.article-hero p {
  max-width: 720px;
  margin: 0;
  color: rgba(255, 255, 255, .78);
  font-size: 18px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 26px;
  color: var(--mint);
  font-size: 13px;
  font-weight: 700;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 48px;
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 88px;
}

.article-content {
  min-width: 0;
  padding: 40px clamp(22px, 5vw, 58px);
  border: 1px solid #e0ebf3;
  background: var(--paper);
  box-shadow: 0 18px 50px rgba(9, 46, 104, .07);
}

.article-content h2 {
  margin: 38px 0 12px;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.25;
}

.article-content h2:first-child { margin-top: 0; }

.article-content h3 {
  margin: 26px 0 8px;
  color: var(--blue);
  font-size: 20px;
}

.article-content p { margin: 0 0 16px; }

.article-content ul,
.article-content ol {
  margin: 0 0 20px;
  padding-left: 24px;
}

.article-content li { margin-bottom: 8px; }

.article-content strong { color: var(--ink); }

.article-content a {
  color: #0874bb;
  font-weight: 700;
}

.article-figure {
  margin: 28px 0 32px;
}

.article-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  object-fit: cover;
}

.article-figure figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

.article-toc {
  display: none;
  margin: 28px 0 34px;
  padding: 22px 24px;
  border: 1px solid #dcecf4;
  border-radius: 12px;
  background: #f5fbfe;
}

.article-toc h2 {
  margin: 0 0 12px;
  font-size: 20px;
}

.article-toc ol {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 22px;
}

.article-toc a {
  font-size: 14px;
  font-weight: 600;
}

.article-cta {
  margin: 30px 0;
  padding: 20px 22px;
  border: 1px solid #c9e5f2;
  border-radius: 12px;
  background: linear-gradient(135deg, #f1fbff, #f7fffd);
}

.article-cta p { margin: 0; }

.article-table-wrap {
  margin: 24px 0;
  overflow-x: auto;
}

.article-table-wrap table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.article-table-wrap th,
.article-table-wrap td {
  padding: 12px 14px;
  border: 1px solid #dce7ef;
  text-align: left;
  vertical-align: top;
}

.article-table-wrap th {
  color: var(--ink);
  background: #eef8fc;
}

.callout {
  margin: 26px 0;
  padding: 18px 20px;
  border-left: 4px solid var(--cyan);
  background: #eefaff;
}

.callout p { margin: 0; }

.step-list {
  counter-reset: steps;
  list-style: none;
  padding-left: 0 !important;
}

.step-list li {
  position: relative;
  min-height: 42px;
  padding-left: 52px;
}

.step-list li::before {
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 50%;
  color: var(--navy);
  background: linear-gradient(135deg, var(--cyan), var(--mint));
  content: counter(steps);
  counter-increment: steps;
  font-weight: 800;
}

.article-aside {
  align-self: start;
  position: sticky;
  top: 22px;
  padding: 24px 20px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(150deg, var(--navy), var(--blue));
  box-shadow: 0 16px 34px rgba(9, 46, 104, .16);
}

.article-aside h2 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 18px;
}

.article-aside ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-aside a {
  color: rgba(255, 255, 255, .82);
  font-size: 13px;
  text-decoration: none;
}

.article-aside a:hover { color: var(--cyan); }

.article-layout-long .article-aside {
  max-height: calc(100vh - 44px);
  overflow-y: auto;
}

.article-footer {
  padding: 28px 16px;
  color: rgba(255, 255, 255, .74);
  background: var(--navy);
  text-align: center;
  font-size: 13px;
}

.article-footer a {
  color: var(--mint);
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 760px) {
  .nav-wrap {
    display: block;
    padding: 14px 0;
  }

  .brand { margin-bottom: 8px; }

  .main-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0;
  }

  .main-nav a { padding: 7px 10px 7px 0; font-size: 13px; }

  .article-hero { padding: 56px 16px 62px; }
  .article-hero p { font-size: 16px; }

  .article-layout {
    display: flex;
    flex-direction: column;
    gap: 26px;
    padding: 36px 0 56px;
  }

  .article-content { padding: 28px 22px; }
  .article-content h2 { font-size: 24px; }
  .article-aside { position: static; order: -1; }
  .article-layout-long .article-aside { display: none; }
  .article-layout-long .article-toc { display: block; }
}