:root {
  --bg: #0b0b09;
  --surface: #171713;
  --surface-public: #201b10;
  --text: #f5f0e5;
  --muted: #bdb5a5;
  --line: #403927;
  --accent: #efb84d;
  --focus: #8fd7ff;
  --error: #ff8d8d;
  --max: 70rem;
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.55; }
.portal-page {
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
  flex-direction: column;
  background:
    linear-gradient(180deg, rgb(11 11 9 / .76) 0, rgb(11 11 9 / .91) 34rem, var(--bg) 62rem),
    url("/assets/img/sphinx-cpp.webp") center top / cover fixed no-repeat;
}
.portal-page .site-header { background: rgb(11 11 9 / .9); backdrop-filter: blur(8px); }
a { color: inherit; }
button, input, select { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.shell { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -5rem; left: 1rem; z-index: 20; padding: .65rem .9rem; background: var(--text); color: var(--bg); }
.skip-link:focus { top: 1rem; }

.site-header { border-bottom: 1px solid var(--line); }
.header-inner { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 800; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 2.25rem; aspect-ratio: 1; border: 1px solid var(--accent); color: var(--accent); font-size: .75rem; }
.header-actions, .language-form { display: flex; align-items: center; gap: .65rem; }
.menu-separator { color: var(--line); }
.language-form { position: relative; }
.language-form::after { position: absolute; top: 50%; right: 0; color: var(--accent); content: "▾"; font-size: .72rem; line-height: 1; pointer-events: none; transform: translateY(-42%); }
.language-form select { min-height: auto; padding: 0 1rem 0 0; border: 0; appearance: none; background: transparent; color: var(--accent); font-weight: 750; text-decoration: underline; text-underline-offset: .2em; cursor: pointer; }
.language-form option { background: var(--surface); color: var(--text); }
.language-menu, .catalog-topic-menu { position: relative; }
.language-menu summary, .catalog-topic-menu summary { color: var(--accent); font-weight: 750; text-decoration: underline; text-underline-offset: .2em; cursor: pointer; list-style: none; }
.language-menu summary::-webkit-details-marker, .catalog-topic-menu summary::-webkit-details-marker { display: none; }
.language-menu summary::after, .catalog-topic-menu summary::after { display: inline-block; margin-left: .35rem; content: "▾"; font-size: .72rem; text-decoration: none; transition: transform .15s ease; }
.language-menu[open] summary::after, .catalog-topic-menu[open] summary::after { transform: rotate(180deg); }
.language-menu-options, .topic-filter-options { position: absolute; top: calc(100% + .8rem); right: 0; z-index: 30; display: grid; min-width: 9rem; padding: .35rem; border: 1px solid var(--line); border-top-color: var(--accent); border-radius: .25rem; background: #12120f; box-shadow: 0 1rem 2.5rem rgb(0 0 0 / .48); }
.language-menu-options a { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .5rem .65rem; color: var(--text); text-decoration: none; }
.language-menu-options a:hover, .language-menu-options a:focus-visible { background: var(--surface-public); color: var(--accent); }
.language-menu-options a[aria-current="true"] { color: var(--accent); }
.language-menu-options a[aria-current="true"]::after { content: "✓"; }
.topic-filter-options { min-width: 14rem; }
.topic-filter-options button { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: auto; padding: .5rem .65rem; border: 0; background: transparent; color: var(--text); text-align: left; cursor: pointer; }
.topic-filter-options button:hover, .topic-filter-options button:focus-visible, .topic-filter-options button[aria-pressed="true"] { background: var(--surface-public); color: var(--accent); }
.topic-filter-options button[data-access][aria-pressed="true"]::after { content: "\2713"; }
.topic-filter-separator { height: 1px; margin: .35rem .2rem; background: var(--line); }
.login-link, .main-site-link { color: var(--accent); font-weight: 750; text-underline-offset: .2em; }
.login-link[aria-disabled="true"] { opacity: .65; pointer-events: none; }
.login-status { min-height: 1.6rem; margin-top: -.45rem; margin-bottom: .35rem; color: var(--muted); font-size: .9rem; }
.login-status.is-error { color: var(--error); }

main { padding-block: 3.5rem 5rem; }
.portal-page > main { flex: 1 0 auto; }
h1, h2, h3 { line-height: 1.1; letter-spacing: -.02em; }
h1 { max-width: 15ch; margin: 0; font-size: clamp(2.8rem, 8vw, 6.2rem); }
h2 { margin: 0 0 1.25rem; font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { margin: 0; font-size: 1.3rem; }
.portal-intro { width: 100%; padding-block: .5rem 2.25rem; }
.portal-intro h1 { max-width: none; font-size: clamp(2.35rem, 5vw, 4rem); }
.portal-intro p { max-width: 45rem; margin: 1rem 0 0; color: var(--muted); font-size: clamp(1rem, 2vw, 1.18rem); }
.portal-intro .manifesto-kicker { margin: 0 0 .7rem; color: var(--accent); font-size: .76rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.portal-intro-title { margin: 0 0 .55rem; color: var(--text); font-size: clamp(1.2rem, 2.6vw, 1.8rem); font-weight: 800; }
.portal-intro .portal-intro-copy { max-width: 64rem; margin-top: 1rem; }
.portal-intro .portal-contact { max-width: none; margin: 1.4rem auto 0; text-align: center; }
.portal-contact a { color: var(--accent); font-weight: 750; text-underline-offset: .2em; }

.training-catalog { overflow: visible; }
.catalog-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; padding: 1rem 1.15rem; border: 1px solid var(--line); border-top-color: var(--accent); border-radius: .45rem; background: #12120f; box-shadow: 0 1.25rem 3.5rem rgb(0 0 0 / .22); }
.catalog-heading h2 { margin: 0; font-size: clamp(1.35rem, 3vw, 1.8rem); }
.catalog-controls { display: flex; align-items: center; justify-content: flex-end; gap: 1rem; }
.catalog-search { min-width: min(19rem, 100%); }
.catalog-search input { width: 100%; min-height: 2.65rem; padding: .55rem .75rem; border: 1px solid var(--line); border-radius: .25rem; background: var(--bg); color: var(--text); }
.catalog-search input::placeholder { color: var(--muted); opacity: 1; }
.catalog-filter-status { min-height: 1.5rem; margin: -.6rem 0 1rem; color: var(--muted); font-size: .9rem; }

.training-groups { display: grid; gap: 1.25rem; }
.training-group { overflow: hidden; border: 1px solid var(--line); border-top-color: var(--accent); border-radius: .45rem; background: var(--surface); box-shadow: 0 1.25rem 3.5rem rgb(0 0 0 / .22); }
.training-group-title { margin: 0; padding: .8rem 1.15rem; background: #15130e; color: var(--accent); font-size: 1rem; letter-spacing: .08em; text-transform: uppercase; }
.training-group--unavailable { border-color: #75684c; }
.training-group--unavailable .training-group-title { background: #12120f; color: var(--muted); }
.training-table tbody tr.is-unavailable { background: #141411; }
.training-table tbody tr.is-unavailable:hover { background: #1a1915; }
.training-table-wrap { overflow-x: auto; }
.training-table { width: 100%; border-collapse: collapse; }
.training-table thead th, .training-table tbody th, .training-table td { padding: 1rem 1.15rem; text-align: left; vertical-align: middle; }
.training-table thead th { color: var(--accent); background: #10100d; font-size: .72rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.training-table tbody tr { border-top: 1px solid var(--line); transition: background-color .16s ease; }
.training-table tbody tr.is-clickable { cursor: pointer; }
.training-table tbody tr:hover { background: #1e1b13; }
.training-table td { color: var(--muted); }
.training-table tbody th { color: var(--text); font-size: 1rem; font-weight: 800; letter-spacing: 0; text-transform: none; }
.training-table td:last-child { text-align: right; }
.training-table tr[hidden], [hidden] { display: none !important; }

.training-action { display: inline-flex; align-items: center; justify-content: center; min-height: 2.45rem; margin: 0; padding: .5rem .8rem; border: 1px solid var(--accent); border-radius: .25rem; background: transparent; color: var(--accent); font-weight: 850; line-height: 1.15; text-align: center; text-decoration: none; cursor: pointer; }
.training-action:hover { background: var(--accent); color: var(--bg); }
.training-action[aria-disabled="true"], .training-action:disabled { opacity: .55; cursor: not-allowed; }
.training-status { color: var(--accent) !important; font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.training-actions { display: flex; align-items: center; justify-content: flex-end; gap: .55rem; }
.training-action-secondary { border-color: var(--line); color: var(--text); }
.catalog-status, .catalog-noscript { margin: 0; padding: 2rem 1.15rem; color: var(--muted); text-align: center; }
.catalog-status.is-error { color: var(--error); }
.catalog-direct-links { display: inline-flex; flex-wrap: wrap; justify-content: center; gap: .35rem .8rem; margin-left: .65rem; }
.catalog-direct-link { color: var(--accent); font-weight: 750; text-underline-offset: .2em; }

#access-dialog, dialog.access-dialog { width: min(calc(100% - 2rem), 34rem); max-height: min(90vh, 44rem); margin: auto; padding: 0; overflow: auto; border: 1px solid #6b552a; border-radius: .55rem; background: var(--surface); color: var(--text); box-shadow: 0 2rem 7rem rgb(0 0 0 / .72); }
#access-dialog:not([open]), dialog.access-dialog:not([open]) { display: none; }
#access-dialog::backdrop, dialog.access-dialog::backdrop { background: rgb(0 0 0 / .78); backdrop-filter: blur(3px); }
body.has-open-dialog { overflow: hidden; }
#access-dialog.is-fallback-open { position: fixed; inset: 50% auto auto 50%; z-index: 100; display: block; transform: translate(-50%, -50%); box-shadow: 0 0 0 100vmax rgb(0 0 0 / .78), 0 2rem 7rem rgb(0 0 0 / .72); }
#training-info-dialog { width: min(calc(100% - 2rem), 58rem); max-height: min(92vh, 54rem); margin: auto; padding: 0; overflow: auto; border: 1px solid #6b552a; border-radius: .55rem; background: var(--surface); color: var(--text); box-shadow: 0 2rem 7rem rgb(0 0 0 / .72); }
#training-info-dialog:focus { outline: none; }
#training-info-dialog:not([open]) { display: none; }
#training-info-dialog::backdrop { background: rgb(0 0 0 / .78); backdrop-filter: blur(3px); }
#training-info-dialog.is-fallback-open { position: fixed; inset: 50% auto auto 50%; z-index: 100; display: block; transform: translate(-50%, -50%); box-shadow: 0 0 0 100vmax rgb(0 0 0 / .78), 0 2rem 7rem rgb(0 0 0 / .72); }
.dialog-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: 1.15rem 1.25rem; border-bottom: 1px solid var(--line); background: #12120f; }
.dialog-header h2 { margin: 0; font-size: clamp(1.35rem, 4vw, 1.8rem); }
.dialog-header p { margin: .4rem 0 0; color: var(--muted); }
.dialog-header .dialog-kicker { margin: 0 0 .3rem; color: var(--accent); font-size: .72rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.dialog-header-actions { display: flex; flex: 0 0 auto; align-items: center; gap: .65rem; }
.dialog-header-actions .training-action { width: auto; }
.dialog-close { display: grid; flex: 0 0 auto; place-items: center; width: 2.35rem; min-height: 2.35rem; padding: 0; border: 1px solid var(--line); border-radius: .25rem; background: transparent; color: var(--text); cursor: pointer; }
.dialog-close:hover { border-color: var(--accent); color: var(--accent); }
.access-form { display: grid; gap: 1rem; padding: 1.25rem; }
.form-field { display: grid; gap: .4rem; }
.form-field > span { color: var(--muted); font-size: .85rem; font-weight: 750; }
.form-field input, .form-field select { width: 100%; min-height: 2.8rem; padding: .65rem .75rem; border: 1px solid var(--line); border-radius: .25rem; background: var(--bg); color: var(--text); }
.dialog-actions { display: flex; align-items: center; justify-content: flex-end; gap: .65rem; padding-top: .25rem; }
.dialog-actions button { min-height: 2.6rem; padding: .55rem .9rem; border: 1px solid var(--line); border-radius: .25rem; background: transparent; color: var(--text); cursor: pointer; }
.dialog-actions button[type="submit"] { border-color: var(--accent); background: var(--accent); color: var(--bg); font-weight: 850; }
.dialog-actions button:hover { border-color: var(--accent); }
.access-status { min-height: 1.5rem; margin: 0; color: var(--muted); font-size: .9rem; white-space: pre-line; }
.access-status.is-error, .access-status[data-state="error"] { color: var(--error); }
.training-info-body { display: grid; gap: 1.35rem; padding: 1.25rem; }
.training-info-summary { margin: 0; color: var(--text); font-size: 1.05rem; font-weight: 750; }
.training-info-points { display: grid; gap: .65rem; margin: 0; padding-left: 1.2rem; color: var(--muted); }
.training-info-disclosure { border-top: 1px solid var(--line); }
.training-info-disclosure summary { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .8rem 0; color: var(--accent); font-size: 1.05rem; font-weight: 850; letter-spacing: .04em; cursor: pointer; list-style: none; }
.training-info-disclosure summary::-webkit-details-marker { display: none; }
.training-info-disclosure summary::after { content: "+"; font-size: 1.25rem; line-height: 1; }
.training-info-disclosure[open] summary::after { content: "−"; }
.training-info-disclosure[open] summary { margin-bottom: .75rem; }
.pricing-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: .3rem; }
.pricing-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.pricing-table th, .pricing-table td { padding: .7rem .75rem; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
.pricing-table thead th { border-top: 0; background: #10100d; color: var(--accent); font-size: .7rem; letter-spacing: .09em; text-transform: uppercase; }
.pricing-table tbody th { color: var(--text); font-weight: 750; }
.pricing-table td { color: var(--muted); }
.training-logistics ul { display: grid; gap: .55rem; margin: 0; padding-left: 1.2rem; color: var(--muted); }
.training-info-actions { display: flex; justify-content: flex-end; gap: .65rem; padding-top: .15rem; }
.training-info-actions .training-action { margin: 0; }
.topic-page { min-height: calc(100vh - 4.5rem); }
.topic-page h1 { margin-bottom: 1rem; }
.text-link { color: var(--accent); text-underline-offset: .2em; }
.site-footer { margin-top: auto; padding: 1.25rem 0 1.75rem; border-top: 1px solid var(--line); background: rgb(11 11 9 / .86); color: var(--muted); font-size: .75rem; }
.footer-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); align-items: center; gap: 1rem 1.5rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: .45rem .9rem; }
.footer-links a { color: inherit; text-underline-offset: .2em; }
.footer-links a:hover { color: var(--accent); }
.footer-product { justify-self: end; text-align: right; }

@media (max-width: 46rem) {
  .portal-page { background-position: center top, 54% top; background-size: auto, auto 44rem; }
  .header-inner { align-items: flex-start; flex-direction: column; padding-block: 1rem; }
  .header-actions { display: flex; flex-wrap: nowrap; align-items: center; width: 100%; gap: clamp(.3rem, 2vw, .65rem); font-size: clamp(.8rem, 3.6vw, 1rem); white-space: nowrap; }
  .menu-separator { display: inline; }
  .language-form { flex-wrap: wrap; }
  .language-menu { margin-left: auto; }
  .language-menu-options { right: 0; left: auto; }
  .portal-intro { padding-bottom: 1.5rem; }
  .catalog-heading { align-items: stretch; flex-direction: column; }
  .catalog-controls { align-items: stretch; flex-direction: column; }
  .catalog-search { min-width: 0; }
  .catalog-topic-menu summary { display: flex; justify-content: space-between; }
  .topic-filter-options { right: auto; left: 0; width: 100%; }
  .training-catalog { overflow: visible; border: 0; background: transparent; box-shadow: none; }
  .training-groups { gap: 1.25rem; }
  .training-group + .training-group { border-top: 0; }
  .training-group-title { padding: .2rem 0; background: transparent; }
  .training-group--public .training-group-title, .training-group--private .training-group-title { margin-block: .25rem; padding: .8rem .9rem .75rem; border-bottom: 1px solid var(--accent); }
  .training-table-wrap { overflow: visible; }
  .training-table, .training-table tbody, .training-table tr, .training-table tbody th, .training-table td { display: block; width: 100%; }
  .training-table thead { display: none; }
  .training-table tbody { display: grid; gap: .8rem; }
  .training-table tbody tr { overflow: hidden; border: 1px solid var(--line); border-top-color: var(--accent); border-radius: .35rem; background: var(--surface); }
  .training-table tbody tr:hover { background: var(--surface); }
  .training-table tbody th, .training-table td { display: grid; grid-template-columns: minmax(7.25rem, .7fr) minmax(0, 1.3fr); gap: .75rem; padding: .72rem .9rem; border-top: 1px solid #302b1e; text-align: left; }
  .training-table tbody th { border-top: 0; }
  .training-table tbody th::before, .training-table td::before { content: attr(data-label); color: var(--accent); font-size: .7rem; font-weight: 900; letter-spacing: .09em; text-transform: uppercase; }
  .training-table td:last-child { align-items: center; text-align: left; }
  .training-actions { align-items: stretch; flex-direction: column; width: 100%; }
  .training-action { width: 100%; }
  .footer-inner { grid-template-columns: 1fr; justify-items: start; }
  .footer-links { justify-content: flex-start; }
  .footer-product { justify-self: start; text-align: left; }
  #access-dialog, dialog.access-dialog { width: min(calc(100% - 1rem), 34rem); max-height: calc(100vh - 1rem); }
  #training-info-dialog { width: min(calc(100% - 1rem), 58rem); max-height: calc(100vh - 1rem); }
  .dialog-actions { align-items: stretch; flex-direction: column-reverse; }
  .dialog-actions button { width: 100%; }
  .training-info-actions { align-items: stretch; flex-direction: column; }
  .training-info-actions .training-action { width: 100%; }
}