/* Teams Accessibility — light editorial theme */
:root {
  color-scheme: light;
  --color-primary: #c8102e;
  --color-primary-dark: #970b22;
  --color-primary-soft: #fbecef;
  --color-ink: #171717;
  --color-heading: #0b0b0b;
  --color-muted: #5d6268;
  --color-bg: #f7f5f1;
  --color-surface: #ffffff;
  --color-surface-alt: #efede8;
  --color-border: #d9d6d0;
  --color-rule: #252525;
  --color-focus: #005fcc;
  --font-sans: Arial, Helvetica, sans-serif;
  --font-heading: Arial, Helvetica, sans-serif;
  --font-mono: "Cascadia Code", Consolas, monospace;
  --content-width: 1180px;
  --reading-width: 760px;
  --radius: 3px;
  --shadow: 0 12px 34px rgb(22 18 14 / 8%);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
}
button, input, select, textarea { font: inherit; }
img, video { display: block; max-width: 100%; height: auto; }
a {
  color: var(--color-primary-dark);
  text-decoration-thickness: .08em;
  text-underline-offset: .18em;
}
a:hover { color: var(--color-primary); }
::selection { background: #ffd7df; color: var(--color-heading); }

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 2px;
}
.skip-link {
  position: fixed;
  z-index: 1000;
  top: .5rem;
  left: .5rem;
  padding: .65rem 1rem;
  transform: translateY(-180%);
  background: var(--color-heading);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}
.skip-link:focus { transform: translateY(0); }

.container {
  width: min(100% - 2.5rem, var(--content-width));
  margin-inline: auto;
}
main { min-height: 65vh; padding: 0 0 5rem; }

.site-header {
  position: relative;
  z-index: 10;
  background: var(--color-surface);
  border-top: 5px solid var(--color-primary);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 112px;
  gap: 2rem;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: .8rem;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  text-decoration: none;
  white-space: nowrap;
}
.site-logo:hover { color: var(--color-primary-dark); }
.site-logo img {
  width: 88px;
  height: 88px;
  flex: 0 0 88px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 2px 8px rgb(0 0 0 / 16%);
}
.site-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.25rem);
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav a {
  display: block;
  padding: 1.95rem 0 1.7rem;
  border-bottom: 3px solid transparent;
  color: var(--color-ink);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] { border-color: var(--color-primary); color: var(--color-primary-dark); }

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.75rem, 8vw, 7rem) 0;
  background:
    linear-gradient(90deg, rgb(255 255 255 / 97%), rgb(255 255 255 / 88%)),
    repeating-linear-gradient(135deg, transparent 0 18px, var(--color-primary-soft) 18px 19px);
  border-bottom: 1px solid var(--color-border);
}
.hero::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: clamp(6px, 1vw, 12px);
  background: var(--color-primary);
  content: "";
}
.hero .container { max-width: var(--content-width); }
.hero h1 {
  max-width: 850px;
  margin: 0 0 1.2rem;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 5.25rem);
  line-height: .98;
  letter-spacing: -.05em;
}
.hero p {
  max-width: 720px;
  margin: 0 0 2rem;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.55;
}
.btn {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: .72rem 1.35rem;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #fff;
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .055em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color .18s ease, border-color .18s ease, transform .18s ease;
}
.btn::after { margin-left: .65rem; content: "→"; }
.btn:hover { transform: translateY(-1px); border-color: var(--color-primary-dark); background: var(--color-primary-dark); color: #fff; }

.section-block { margin-top: clamp(2.75rem, 6vw, 5rem); }
.section-title,
.container > h1 {
  margin: 0 0 1.25rem;
  padding-bottom: .65rem;
  border-bottom: 3px solid var(--color-rule);
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -.025em;
}
.container > h1 { margin-top: clamp(2.5rem, 6vw, 5rem); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1.5rem;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}
.card {
  display: flex;
  flex-direction: column;
  min-height: 290px;
  padding: clamp(1.4rem, 3vw, 2.1rem);
  background: var(--color-surface);
  transition: box-shadow .2s ease, transform .2s ease;
}
.card:hover { position: relative; z-index: 1; transform: translateY(-3px); box-shadow: var(--shadow); }
.card-tag {
  margin-bottom: 1rem;
  color: var(--color-primary);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.card h2, .card h3 {
  margin: 0 0 .8rem;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: clamp(1.28rem, 2vw, 1.6rem);
  line-height: 1.18;
}
.card h2 a, .card h3 a { color: inherit; text-decoration: none; }
.card h2 a:hover, .card h3 a:hover { color: var(--color-primary-dark); text-decoration: underline; }
.card p { flex: 1; margin: 0 0 1.25rem; color: var(--color-muted); font-size: .95rem; }

.topic-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-border);
  list-style: none;
}
.topic-list li { border-bottom: 1px solid var(--color-border); }
.topic-list li:nth-child(odd) { border-right: 1px solid var(--color-border); }
.topic-list a { display: block; padding: 1rem 1.15rem; color: var(--color-heading); font-weight: 750; text-decoration: none; }
.topic-list a::after { float: right; color: var(--color-primary); content: "→"; }
.topic-list a:hover { background: var(--color-primary-soft); color: var(--color-primary-dark); }

.article-list { margin: 0; padding: 0; border-top: 1px solid var(--color-border); list-style: none; }
.article-list li { display: grid; grid-template-columns: 145px 1fr; column-gap: 1.5rem; padding: 1.6rem 0; border-bottom: 1px solid var(--color-border); }
.article-list .article-meta { grid-row: 1 / span 2; }
.article-list h3 { margin: 0 0 .45rem; font-family: var(--font-heading); font-size: clamp(1.2rem, 2.5vw, 1.55rem); line-height: 1.2; }
.article-list h3 a { color: var(--color-heading); text-decoration: none; }
.article-list h3 a:hover { color: var(--color-primary-dark); text-decoration: underline; }
.article-list p { margin: 0; color: var(--color-muted); }
.article-meta { color: var(--color-muted); font-size: .76rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }

.article-header,
.article-body,
.back-link,
.support-section { max-width: var(--reading-width); margin-inline: auto; }
.back-link { display: block; margin-top: 2.5rem; margin-bottom: 2rem; font-size: .8rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.article-header { margin-bottom: 2.25rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-border); }
.article-header h1 {
  margin: 0 0 1rem;
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-size: clamp(2.35rem, 7vw, 4.7rem);
  line-height: 1.02;
  letter-spacing: -.045em;
}
.article-body { font-family: var(--font-sans); font-size: clamp(1.05rem, 2vw, 1.17rem); }
.article-body h2, .support-section h2 { margin: 2.7rem 0 .8rem; color: var(--color-heading); font-family: var(--font-heading); font-size: clamp(1.55rem, 3vw, 2rem); line-height: 1.15; }
.article-body h3, .support-section h3 { margin: 2rem 0 .5rem; color: var(--color-heading); font-family: var(--font-heading); font-size: 1.3rem; line-height: 1.25; }
.article-body p { margin: 0 0 1.3rem; }
.article-body code, kbd { padding: .12em .35em; border: 1px solid var(--color-border); border-radius: 3px; background: var(--color-surface-alt); font-family: var(--font-mono); font-size: .86em; }
.article-body pre { overflow-x: auto; margin: 1.6rem 0; padding: 1.1rem; border-left: 4px solid var(--color-primary); background: #242424; color: #f5f5f5; font-size: .9rem; }
.article-body pre code { padding: 0; border: 0; background: transparent; color: inherit; }
.article-body blockquote { margin: 2rem 0; padding: 1rem 1.35rem; border-left: 5px solid var(--color-primary); background: var(--color-primary-soft); color: #393939; font-size: 1.08em; }
.article-body blockquote p:last-child { margin-bottom: 0; }

.support-section { margin-bottom: 3rem; }
.support-section:first-of-type { margin-top: 2rem; }
.support-section h2 { padding-bottom: .6rem; border-bottom: 2px solid var(--color-rule); }

.site-footer { padding: 2.25rem 0; border-top: 5px solid var(--color-heading); background: var(--color-surface); color: var(--color-muted); font-size: .84rem; }
.site-footer .container { display: flex; justify-content: center; }
.site-footer p { margin: 0; }
.site-footer a { color: var(--color-ink); font-weight: 700; }

@media (max-width: 820px) {
  .card-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .container { width: min(100% - 1.5rem, var(--content-width)); }
  .site-header .container { align-items: flex-start; flex-direction: column; gap: 0; padding-top: .65rem; }
  .site-nav { width: 100%; overflow-x: auto; }
  .site-nav ul { justify-content: space-between; }
  .site-nav a { padding: .8rem 0 .65rem; }
  .hero { padding: 3.5rem 0; }
  .card-grid { grid-template-columns: 1fr; }
  .card { min-height: 0; }
  .topic-list { grid-template-columns: 1fr; }
  .topic-list li:nth-child(odd) { border-right: 0; }
  .article-list li { display: block; }
  .article-list .article-meta { margin-bottom: .45rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}
@media print {
  .site-header, .site-footer, .back-link, .btn { display: none; }
  body { background: #fff; color: #000; }
  main { padding: 0; }
  .article-body, .article-header { max-width: none; }
  a { color: inherit; }
}