/* Shared guide and portal components for Block Breaker Arcade. */
html { background: #080c18; color-scheme: dark; }
html[data-theme="light"] { background: #eef3fb; color-scheme: light; }
.site-header {
  position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(174,195,232,.11);
  background: rgba(5,13,29,.9); backdrop-filter: blur(18px);
}
.topbar {
  display: flex; width: min(1200px, calc(100% - 36px)); min-height: 70px; align-items: center;
  gap: 25px; margin: 0 auto; padding: 0;
}
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 11px; color: #f4f7ff; text-decoration: none; }
.brand-mark {
  display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(101,171,255,.35);
  border-radius: 14px; color: #63e5ee; background: linear-gradient(145deg,rgba(68,127,242,.24),rgba(120,84,229,.13));
  box-shadow: 0 0 28px rgba(77,151,255,.15), inset 0 1px rgba(255,255,255,.12);
}
.brand-mark svg { width: 22px; height: 22px; }
.brand-name { font-size: 18px; font-weight: 750; letter-spacing: .03em; }
.brand-sub { display: block; margin-top: 2px; color: #94a0bd; font-size: 10px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: 8px;
}
.main-nav a {
  padding: 9px 13px;
  border-radius: 11px;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: #fff;
  background: rgba(255,255,255,.07);
}
.main-nav a:hover { transform: translateY(-1px); }
.main-nav a:focus-visible { outline: 2px solid #66e5ec; outline-offset: 3px; }
.theme-toggle { margin-left: auto; }
.theme-icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.theme-icon-moon { display: none; }
.theme-toggle {
  display: grid; width: 42px; height: 42px; flex: 0 0 auto; place-items: center; padding: 0;
  border: 1px solid rgba(150,174,222,.22); border-radius: 12px; color: #d6e2fa;
  background: linear-gradient(180deg,rgba(30,44,73,.94),rgba(14,23,42,.96));
  box-shadow: 0 3px 0 rgba(0,0,0,.18), inset 0 1px rgba(255,255,255,.08);
  cursor: pointer; transition: border-color .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.theme-toggle:hover { border-color: rgba(109,222,232,.6); color: #86eff0; transform: translateY(-1px); }
.theme-toggle:active { transform: translateY(1px); }
.theme-toggle:focus-visible { outline: 2px solid #66e5ec; outline-offset: 3px; }
.main-nav a,
.site-footer nav a {
  color: #aeb9d3;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: color .18s ease, background .18s ease, transform .18s ease;
}
.main-nav a:hover,
.site-footer nav a:hover { color: #75e8ec; }
.portal-cta {
  display: inline-flex;
  min-height: 39px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid rgba(112, 226, 235, .28);
  border-radius: 11px;
  color: #d9ffff;
  background: rgba(63, 155, 190, .11);
  font-size: 14px;
  font-weight: 900;
  text-decoration: none;
  transition: .18s ease;
}
.portal-cta:hover { border-color: rgba(112, 226, 235, .65); background: rgba(63, 155, 190, .2); transform: translateY(-1px); }
.leaderboard-more {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 11px;
  padding: 9px 10px;
  border: 1px solid rgba(126, 212, 234, .13);
  border-radius: 9px;
  color: #aee8f0;
  background: rgba(85, 167, 255, .055);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}
.leaderboard-more:hover { border-color: rgba(126, 212, 234, .36); color: #e2ffff; }
.portal-content,
.portal-faq {
  max-width: 1200px;
  margin: 65px auto 0;
}
.portal-description .portal-section-heading { max-width: 1000px; }
.portal-description {
  width: 100%; max-width: none; margin: 58px auto 70px; padding: 27px 30px 25px;
  border: 1px solid rgba(154,180,225,.17); border-radius: 20px;
  background: linear-gradient(145deg,rgba(17,31,58,.9),rgba(22,39,72,.8));
  box-shadow: 0 18px 55px rgba(0,0,0,.17); backdrop-filter: blur(18px);
}
.portal-description .portal-section-heading { max-width: 1000px; margin: 0 auto 30px; text-align: left; }
.portal-description .portal-section-heading h2 { margin: 0 0 12px; font-size: clamp(30px,4vw,42px); line-height: 1.08; letter-spacing: -.04em; }
.portal-description .portal-section-heading p { font-size: 17px; line-height: 1.8; }
.portal-copy-grid { display: grid; max-width: 1000px; grid-template-columns: 1fr; gap: 0; margin: 0 auto; }
.portal-copy-block { padding: 25px 0 0; border: 0; border-top: 1px solid rgba(154,180,225,.17); border-radius: 0; background: transparent; }
.portal-copy-block h3 { margin: 0 0 9px; color: #eaf2ff; font-size: clamp(22px,2.5vw,27px); letter-spacing: -.03em; line-height: 1.2; }
.portal-copy-block p { margin: 0 0 14px; color: #a0acc7; font-size: 17px; line-height: 1.8; }
.portal-copy-block p:last-child { margin-bottom: 0; }
.portal-section-heading { max-width: 660px; margin: 0 auto 24px; text-align: center; }
.portal-eyebrow,
.guide-card-kicker,
.page-kicker {
  color: #77dfe9;
  font-size: 9px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.portal-section-heading h2 {
  margin: 9px 0 8px;
  color: #f4f7ff;
  font-size: clamp(23px, 3.4vw, 34px);
  letter-spacing: -.045em;
}
.portal-section-heading p { margin: 0; color: #94a0bd; font-size: 15px; line-height: 1.75; }
.portal-guide-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.portal-guide-card {
  display: flex;
  min-height: 218px;
  flex-direction: column;
  padding: 18px;
  border: 1px solid rgba(173, 192, 255, .13);
  border-radius: 16px;
  color: inherit;
  background: linear-gradient(150deg, rgba(23, 31, 55, .78), rgba(12, 17, 32, .84));
  text-decoration: none;
  transition: border-color .18s ease, transform .18s ease, background .18s ease;
}
.portal-guide-card:hover { border-color: rgba(99, 229, 238, .42); background: linear-gradient(150deg, rgba(27, 42, 70, .92), rgba(12, 17, 32, .96)); transform: translateY(-3px); }
.portal-guide-card h3 { margin: 12px 0 9px; color: #eef4ff; font-size: 19px; letter-spacing: -.02em; line-height: 1.3; }
.portal-guide-card p { margin: 0 0 16px; color: #98a5c2; font-size: 14px; line-height: 1.7; }
.guide-card-link { display: flex; justify-content: space-between; align-items: center; margin-top: auto; color: #83e9ed; font-size: 13px; font-weight: 850; }
.portal-faq { margin-top: 58px; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.faq-item { padding: 15px 17px; border: 1px solid rgba(173, 192, 255, .1); border-radius: 13px; background: rgba(15, 22, 41, .7); }
.faq-item summary { color: #eaf0ff; font-size: 16px; font-weight: 800; cursor: pointer; }
.faq-item p { margin: 12px 0 0; color: #99a6c3; font-size: 15px; line-height: 1.75; }
.site-footer {
  display: grid;
  justify-items: center;
  gap: 10px;
  margin: 64px 0 0;
  padding: 24px 0 4px;
  border-top: 1px solid rgba(173, 192, 255, .1);
  color: #7987a4;
  text-align: center;
}
.footer-brand { color: #dce8ff; font-size: 11px; font-weight: 900; letter-spacing: .13em; text-decoration: none; }
.footer-brand span { color: #7bdfe4; }
.site-footer p { margin: 0; font-size: 12px; }
.site-footer nav { display: flex; gap: 17px; margin: 3px 0; }
.site-footer nav a { font-size: 12px; }
.site-footer small { max-width: 650px; color: #66728d; font-size: 11px; line-height: 1.6; }

/* Standalone guide and leaderboard pages. */
.portal-page {
  min-height: 100vh;
  position: relative;
  isolation: isolate;
  color: #f5f7ff;
  font-size: 16px;
  line-height: 1.5;
  font-family: "Outfit", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: transparent;
}
.portal-page::before {
  position: fixed; z-index: -1; inset: 0; content: ""; pointer-events: none;
  background:
    radial-gradient(ellipse at 50% -15%, rgba(69, 102, 200, .18), transparent 45%),
    linear-gradient(180deg, rgba(5, 10, 23, .13), rgba(5, 10, 23, .52)),
    url("/assets/block-breaker-background.webp") center / cover no-repeat;
}
.portal-shell { width: min(1200px, calc(100% - 36px)); margin: 0 auto; padding: 23px 0 54px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 24px; color: #6f7d9b; font-size: 12px; }
.breadcrumbs a { color: #9db3d9; text-decoration: none; }
.breadcrumbs a:hover { color: #7fe7ec; }
.page-hero { max-width: 760px; margin: 0 auto 35px; text-align: center; }
.page-hero h1 { margin: 10px 0 12px; color: #f4f7ff; font-size: clamp(32px, 6vw, 56px); line-height: 1.02; letter-spacing: -.055em; }
.page-hero p { max-width: 670px; margin: 0 auto; color: #a0acc7; font-size: 16px; line-height: 1.75; }
.page-meta { margin-top: 14px; color: #74819d; font-size: 12px; }
.feature-guide {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(180px, .8fr);
  gap: 22px;
  align-items: center;
  margin: 0 0 32px;
  padding: clamp(20px, 4vw, 33px);
  border: 1px solid rgba(112, 220, 238, .21);
  border-radius: 20px;
  background: linear-gradient(125deg, rgba(30, 76, 111, .3), rgba(26, 28, 61, .55) 55%, rgba(14, 19, 37, .92));
}
.feature-guide h2 { margin: 8px 0; color: #eff8ff; font-size: clamp(22px, 3vw, 32px); letter-spacing: -.04em; }
.feature-guide p { margin: 0; color: #a6b3ce; font-size: 15px; line-height: 1.75; }
.feature-art { display: grid; min-height: 145px; place-items: center; border: 1px solid rgba(151, 183, 252, .12); border-radius: 15px; background: radial-gradient(circle at 50% 35%, rgba(82, 172, 255, .22), rgba(18, 27, 52, .24) 70%); }
.feature-art span { color: #98eeef; font-size: 58px; filter: drop-shadow(0 0 24px rgba(100, 226, 237, .32)); }
.library-head { display: flex; align-items: end; justify-content: space-between; gap: 15px; margin: 39px 0 16px; }
.library-head h2 { margin: 6px 0 0; font-size: 23px; letter-spacing: -.035em; }
.library-head p { margin: 0; color: #8794b1; font-size: 14px; }
.guide-library { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
.library-card {
  display: flex; flex-direction: column; min-height: 178px; padding: 20px;
  border: 1px solid rgba(173, 192, 255, .12); border-radius: 15px;
  color: inherit; background: linear-gradient(145deg, rgba(23,31,55,.88), rgba(12,17,32,.95));
  text-decoration: none; transition: .18s ease;
}
.library-card:hover { border-color: rgba(110, 225, 234, .42); transform: translateY(-2px); }
.library-card h3 { margin: 11px 0 7px; color: #eef4ff; font-size: 16px; }
.library-card p { margin: 0 0 13px; color: #98a5c2; font-size: 14px; line-height: 1.7; }
.library-card .guide-card-link { margin-top: auto; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 245px; gap: 24px; align-items: start; }
.article-body { min-width: 0; }
.article-section {
  margin: 0 0 14px; padding: 25px 27px;
  border: 1px solid rgba(173, 192, 255, .11); border-radius: 16px;
  background: linear-gradient(150deg, rgba(21,29,52,.86), rgba(12,17,32,.9));
  scroll-margin-top: 20px;
}
.article-section h2 { margin: 0 0 12px; color: #eef4ff; font-size: 20px; letter-spacing: -.03em; }
.article-section h3 { margin: 21px 0 7px; color: #dce8ff; font-size: 14px; }
.article-section p,
.article-section li { color: #a3afca; font-size: 16px; line-height: 1.85; }
.article-section p { margin: 0 0 12px; }
.article-section p:last-child { margin-bottom: 0; }
.article-section ul,
.article-section ol { display: grid; gap: 7px; margin: 10px 0 0; padding-left: 20px; }
.article-callout { margin: 17px 0 0; padding: 13px 15px; border-left: 3px solid #69dbe4; border-radius: 0 10px 10px 0; color: #b9d9ea; background: rgba(64,153,188,.09); font-size: 11px; line-height: 1.7; }
.guide-aside { position: sticky; top: 18px; display: grid; gap: 11px; }
.aside-card { padding: 17px; border: 1px solid rgba(173, 192, 255, .11); border-radius: 14px; background: rgba(17,23,42,.82); }
.aside-card h2 { margin: 0 0 12px; color: #edf3ff; font-size: 16px; }
.toc-list,
.related-list { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.toc-list a,
.related-list a { color: #9cabc8; font-size: 13px; line-height: 1.6; text-decoration: none; }
.toc-list a:hover,
.related-list a:hover { color: #7be4eb; }
.related-label { display: block; margin-bottom: 4px; color: #6fdbdf; font-size: 8px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.portal-cta-panel {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin: 27px 0 0; padding: 20px 22px; border: 1px solid rgba(101, 211, 224, .18);
  border-radius: 15px; background: linear-gradient(115deg, rgba(41,107,140,.16), rgba(81,71,145,.11));
}
.portal-cta-panel h2 { margin: 0 0 4px; color: #edfaff; font-size: 16px; }
.portal-cta-panel p { margin: 0; color: #92a0bd; font-size: 13px; line-height: 1.6; }
.leader-periods { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin: 26px 0 17px; }
.leader-period {
  padding: 9px 14px; border: 1px solid rgba(173,192,255,.13); border-radius: 10px;
  color: #a0acc5; background: rgba(17,23,42,.82); font-size: 14px; font-weight: 800; cursor: pointer;
}
.leader-period.active { border-color: rgba(108,221,232,.6); color: #07131e; background: linear-gradient(100deg,#74eff0,#9bcaff); }
.leaderboard-table-wrap { overflow-x: auto; border: 1px solid rgba(173,192,255,.12); border-radius: 16px; background: rgba(17,23,42,.8); }
.leaderboard-table { width: 100%; border-collapse: collapse; min-width: 430px; }
.leaderboard-table th { padding: 13px 17px; color: #73819d; font-size: 11px; letter-spacing: .13em; text-align: left; text-transform: uppercase; }
.leaderboard-table td { padding: 14px 17px; border-top: 1px solid rgba(173,192,255,.075); color: #d5def2; font-size: 14px; }
.leaderboard-table td:first-child { color: #69dfe5; font-weight: 900; }
.leaderboard-table td:last-child { color: #b8d7ff; font-weight: 900; text-align: right; }
.leaderboard-note { max-width: 700px; margin: 15px auto 0; color: #7886a3; font-size: 12px; line-height: 1.75; text-align: center; }
.leaderboard-state { min-height: 20px; margin-top: 12px; color: #93a0bb; font-size: 14px; text-align: center; }
.portal-footer { margin-top: 54px; padding-top: 20px; border-top: 1px solid rgba(173,192,255,.1); color: #71809c; text-align: center; }
.portal-footer p { margin: 0 0 9px; font-size: 10px; }
.portal-footer nav { display: flex; justify-content: center; gap: 16px; margin-bottom: 10px; }
.portal-footer nav a { color: #9aa8c5; font-size: 10px; text-decoration: none; }
.portal-footer nav a:hover { color: #7de3ea; }
.portal-footer small { color: #66728d; font-size: 9px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; clip-path: inset(50%); }
@media (max-width: 900px) {
  .portal-guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-layout { grid-template-columns: minmax(0, 1fr) 210px; gap: 14px; }
}
@media (max-width: 720px) {
  .topbar { width: calc(100% - 24px); min-height: 62px; flex-wrap: wrap; gap: 12px; }
  .brand { gap: 8px; }
  .brand-name { font-size: 17px; }
  .brand-mark { width: 38px; height: 38px; border-radius: 12px; }
  .main-nav { order: 3; width: 100%; justify-content: center; gap: 26px; }
  .theme-toggle { order: 2; margin-left: auto; }
  .portal-content,
  .portal-faq { margin-top: 46px; }
  .portal-description { margin-top: 42px; }
  .portal-copy-grid { grid-template-columns: 1fr; }
  .portal-copy-block { padding: 20px 0 0; }
  .faq-grid { grid-template-columns: 1fr; }
  .portal-shell { width: calc(100% - 24px); padding-top: 15px; }
  .article-layout { grid-template-columns: 1fr; }
  .guide-aside { position: static; grid-row: 1; }
  .toc-list { grid-template-columns: 1fr 1fr; }
  .article-section { padding: 20px; }
}
@media (max-width: 480px) {
  .portal-guide-grid,
  .guide-library { grid-template-columns: 1fr; }
  .portal-guide-card { min-height: 160px; }
  .feature-guide { grid-template-columns: 1fr; }
  .feature-art { min-height: 105px; }
  .library-head { align-items: start; flex-direction: column; }
  .portal-cta-panel { align-items: start; flex-direction: column; }
  .toc-list { grid-template-columns: 1fr; }
  .main-nav { gap: 18px; }
  .main-nav a { font-size: 13px; }
  .theme-toggle { width: 38px; height: 38px; }
  .portal-cta { min-height: 36px; padding: 0 10px; font-size: 11px; }
}
@media (max-width: 390px) {
  .theme-icon { width: 18px; height: 18px; }
  .topbar { gap: 9px; }
  .brand { gap: 7px; }
  .brand-mark { width: 34px; height: 34px; border-radius: 11px; }
  .brand-name { font-size: 15px; letter-spacing: .02em; }
  .brand-sub { display: none; }
}

html[data-theme="light"] .portal-page {
  color: #192844;
  background: transparent;
}
html[data-theme="light"] .portal-page::before {
  background:
    linear-gradient(180deg, rgba(241,246,253,.81), rgba(238,243,251,.88)),
    url("/assets/block-breaker-background.webp") center / cover no-repeat;
}
html[data-theme="light"] .site-header { border-color: rgba(83,105,145,.17); background: rgba(248,250,254,.9); }
html[data-theme="light"] .brand,
html[data-theme="light"] .brand-name { color: #192844; }
html[data-theme="light"] .brand-sub { color: #62718a; }
html[data-theme="light"] .theme-toggle {
  border-color: rgba(83,105,145,.19); color: #405674;
  background: linear-gradient(180deg,#fff,#e9eff8);
  box-shadow: 0 3px 0 rgba(48,66,101,.1), inset 0 1px #fff;
}
html[data-theme="light"] .theme-toggle:hover { border-color: rgba(49,154,176,.5); color: #167f8c; }
html[data-theme="light"] .theme-icon-sun { display: none; }
html[data-theme="light"] .theme-icon-moon { display: block; }
html[data-theme="light"] .page-hero h1,
html[data-theme="light"] .portal-section-heading h2,
html[data-theme="light"] .library-head h2,
html[data-theme="light"] .article-section h2,
html[data-theme="light"] .article-section h3,
html[data-theme="light"] .aside-card h2,
html[data-theme="light"] .portal-cta-panel h2,
html[data-theme="light"] .faq-item summary { color: #192844; }
html[data-theme="light"] .breadcrumbs,
html[data-theme="light"] .page-hero p,
html[data-theme="light"] .page-meta,
html[data-theme="light"] .library-head p,
html[data-theme="light"] .article-section p,
html[data-theme="light"] .article-section li,
html[data-theme="light"] .portal-cta-panel p,
html[data-theme="light"] .faq-item p,
html[data-theme="light"] .portal-footer,
html[data-theme="light"] .portal-footer small { color: #5c6b84; }
html[data-theme="light"] .main-nav a,
html[data-theme="light"] .breadcrumbs a,
html[data-theme="light"] .portal-footer nav a,
html[data-theme="light"] .site-footer nav a,
html[data-theme="light"] .toc-list a,
html[data-theme="light"] .related-list a { color: #405674; }
html[data-theme="light"] .main-nav a:hover,
html[data-theme="light"] .breadcrumbs a:hover,
html[data-theme="light"] .portal-footer nav a:hover,
html[data-theme="light"] .site-footer nav a:hover { color: #167f8c; }
html[data-theme="light"] .main-nav a:hover,
html[data-theme="light"] .main-nav a[aria-current="page"] {
  color: #167f8c;
  background: rgba(49,154,176,.12);
}
html[data-theme="light"] .portal-eyebrow,
html[data-theme="light"] .guide-card-kicker,
html[data-theme="light"] .page-kicker { color: #26758d; }
html[data-theme="light"] .guide-card-link { color: #26758d; }
html[data-theme="light"] .leaderboard-more {
  border-color: rgba(68,139,164,.2); color: #28566a;
  background: linear-gradient(180deg,#f8fdff,#eaf4f8); box-shadow: 0 2px 0 rgba(64,106,140,.07), inset 0 1px #fff;
}
html[data-theme="light"] .footer-brand { color: #344863; }
html[data-theme="light"] .portal-cta {
  border-color: rgba(51,137,166,.3); color: #17455a;
  background: linear-gradient(180deg,#fff,#eaf5fa); box-shadow: 0 3px 0 rgba(64,106,140,.12), inset 0 1px #fff;
}
html[data-theme="light"] .portal-content .portal-guide-card,
html[data-theme="light"] .faq-item,
html[data-theme="light"] .library-card,
html[data-theme="light"] .article-section,
html[data-theme="light"] .aside-card,
html[data-theme="light"] .leaderboard-table-wrap {
  border-color: rgba(83,105,145,.17); color: #273a58;
  background: linear-gradient(150deg,rgba(255,255,255,.97),rgba(237,242,250,.97));
  box-shadow: 0 8px 22px rgba(48,67,103,.07), inset 0 1px #fff;
}
html[data-theme="light"] .portal-description {
  border-color: rgba(83,105,145,.17);
  background: linear-gradient(145deg,rgba(255,255,255,.97),rgba(235,241,250,.96));
  box-shadow: 0 18px 46px rgba(47,67,103,.1), inset 0 1px #fff;
}
html[data-theme="light"] .portal-copy-block { border-top-color: rgba(83,105,145,.17); background: transparent; box-shadow: none; }
html[data-theme="light"] .portal-guide-card h3,
html[data-theme="light"] .portal-copy-block h3,
html[data-theme="light"] .library-card h3 { color: #1d2f4c; }
html[data-theme="light"] .portal-guide-card p,
html[data-theme="light"] .portal-copy-block p,
html[data-theme="light"] .library-card p { color: #5c6b84; }
html[data-theme="light"] .feature-guide {
  border-color: rgba(66,141,175,.22);
  background: linear-gradient(125deg,#e2f4fa,#edf0fc 55%,#fff);
  box-shadow: 0 16px 34px rgba(48,67,103,.09), inset 0 1px #fff;
}
html[data-theme="light"] .feature-guide h2,
html[data-theme="light"] .feature-guide p { color: #213b5a; }
html[data-theme="light"] .feature-art { border-color: rgba(83,105,145,.14); background: radial-gradient(circle at 50% 35%,rgba(82,172,255,.16),rgba(230,237,248,.72) 70%); }
html[data-theme="light"] .article-callout { color: #32536b; background: rgba(64,153,188,.1); }
html[data-theme="light"] .portal-cta-panel { border-color: rgba(75,147,174,.2); background: linear-gradient(115deg,rgba(215,242,249,.75),rgba(230,228,251,.72)); }
html[data-theme="light"] .leader-period { border-color: rgba(83,105,145,.17); color: #445a78; background: linear-gradient(180deg,#fff,#edf2f9); box-shadow: 0 2px 0 rgba(48,66,101,.08); }
html[data-theme="light"] .leaderboard-table-wrap { background: rgba(255,255,255,.95); }
html[data-theme="light"] .leaderboard-table th { color: #62718a; }
html[data-theme="light"] .leaderboard-table td { border-color: rgba(83,105,145,.13); color: #344968; }
html[data-theme="light"] .leaderboard-table td:last-child { color: #244e84; }
html[data-theme="light"] .leaderboard-note,
html[data-theme="light"] .leaderboard-state { color: #5c6b84; }
html[data-theme="light"] .portal-footer { border-color: rgba(83,105,145,.17); }
html[data-theme="light"] .portal-footer small { color: #687892; }