/* aasc-about.css — ON1 AASC public explainer
 *
 * Aesthetic flavor: PROFESSIONAL-FINANCE — deep ink-blue + steel + warm
 * brass accents. Generous typographic hierarchy, tabular data feel,
 * regimented section numbering. Distinct from services.css (boutique
 * cream) and aasc.css (operator-mode terminal).
 */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-deep:    #0a1322;
  --bg-mid:     #101c30;
  --bg-card:    #142339;
  --bg-card-hi: #182a44;

  --ink:        #e7eef9;
  --ink-mid:    #b6c2d7;
  --ink-soft:   #8693ac;
  --ink-mute:   #8791ac;

  --steel:      #63b0d4;
  --steel-hot:  #88c8e6;
  --brass:      #d4a64a;
  --brass-hot:  #e6b860;
  --red-warn:   #d4756b;
  --green-ok:   #8bbd7e;

  --rule:       rgba(99, 176, 212, 0.18);
  --rule-soft:  rgba(99, 176, 212, 0.08);

  --font-disp:  "Chakra Petch", monospace;
  --font-mono:  "IBM Plex Mono", monospace;
  --font-body:  "Familjen Grotesk", system-ui, sans-serif;
}

html, body { min-height: 100%; }

body.aasc-about-page {
  font-family: var(--font-body);
  background:
    radial-gradient(ellipse 1100px 700px at 80% -100px, rgba(99, 176, 212, 0.08), transparent 65%),
    radial-gradient(ellipse 900px 600px at -10% 110%, rgba(212, 166, 74, 0.04), transparent 65%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-mid) 100%);
  background-attachment: fixed;
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* mast -------------------------------------------------------------- */
.aa-mast {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 3rem;
  border-bottom: 1px solid var(--rule);
  background: rgba(10, 19, 34, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.aa-mast-l { display: flex; align-items: center; gap: 0.85rem; flex-wrap: wrap; }
.aa-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-disp);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}
.aa-brand-mark { color: var(--brass); font-size: 1.2rem; }
.aa-mast-sep { color: var(--ink-mute); }
.aa-mast-page {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--steel);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.aa-mast-tier {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--brass);
  border-radius: 999px;
}
.aa-mast-r { display: flex; align-items: center; gap: 1.6rem; }
.aa-mast-r a {
  text-decoration: none;
  color: var(--ink-mid);
  font-size: 0.95rem;
}
.aa-mast-r a:hover { color: var(--steel-hot); }
.aa-mast-r a.aa-mast-cta {
  padding: 0.55rem 1.1rem;
  background: var(--brass);
  color: var(--bg-deep);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--brass);
  font-weight: 600;
}
.aa-mast-r a.aa-mast-cta:hover {
  background: var(--brass-hot);
  border-color: var(--brass-hot);
  color: var(--bg-deep);
}

/* main -------------------------------------------------------------- */
.aa-main {
  max-width: 70rem;
  margin: 0 auto;
  padding: 0 3rem;
}

/* hero -------------------------------------------------------------- */
.aa-hero {
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--rule);
}
.aa-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 2rem;
}
.aa-dot {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--brass);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--brass);
}
.aa-hero-title {
  font-family: var(--font-disp);
  font-weight: 400;
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.005em;
  margin-bottom: 1.8rem;
}
.aa-hero-em { color: var(--brass-hot); }
.aa-hero-lede {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--ink-mid);
  max-width: 46rem;
  margin-bottom: 2.5rem;
}
.aa-hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.aa-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.85rem 1.6rem;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--rule);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.aa-btn-primary {
  background: var(--brass);
  border-color: var(--brass);
  color: var(--bg-deep);
  font-weight: 600;
}
.aa-btn-primary:hover {
  background: var(--brass-hot);
  border-color: var(--brass-hot);
}
.aa-btn-ghost {
  color: var(--ink-mid);
}
.aa-btn-ghost:hover {
  background: var(--bg-card-hi);
  color: var(--steel-hot);
  border-color: var(--steel);
}

/* section ----------------------------------------------------------- */
.aa-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--rule);
}
.aa-section-h {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  margin-bottom: 2.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--rule);
}
.aa-section-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--brass);
  letter-spacing: 0.1em;
}
.aa-section-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.8rem;
  color: var(--ink);
}
.aa-section-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
}
.aa-explain p {
  font-size: 1.04rem;
  color: var(--ink-mid);
  margin-bottom: 1.2rem;
}
.aa-explain strong {
  color: var(--steel-hot);
  font-weight: 600;
}

/* aside ------------------------------------------------------------- */
.aa-aside {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--brass);
  padding: 1.6rem;
  height: fit-content;
  position: sticky;
  top: 6rem;
}
.aa-aside h3 {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 1rem;
}
.aa-aside p {
  font-size: 0.95rem;
  color: var(--ink-mid);
}
.aa-aside-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.aa-aside-list li {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--ink-mid);
  padding-left: 1rem;
  position: relative;
}
.aa-aside-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--brass);
}

/* mechanics --------------------------------------------------------- */
.aa-mechanics {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.aa-mechanics li {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  padding: 1.4rem 1.6rem;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.2rem;
  align-items: start;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.aa-mechanics li:hover {
  border-color: var(--steel);
  transform: translateX(2px);
}
.aa-step {
  font-family: var(--font-disp);
  font-size: 1.6rem;
  color: var(--brass);
  line-height: 1;
}
.aa-mechanics h4 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.aa-mechanics p {
  font-size: 0.96rem;
  color: var(--ink-mid);
}
.aa-mechanics code {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  background: var(--bg-deep);
  color: var(--steel-hot);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

/* publishing -------------------------------------------------------- */
.aa-publish-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}
.aa-publish {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  padding: 1.8rem;
  border-radius: 4px;
}
.aa-publish-public { border-top: 3px solid var(--green-ok); }
.aa-publish-private { border-top: 3px solid var(--red-warn); }
.aa-publish h3 {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}
.aa-publish-public h3 { color: var(--green-ok); }
.aa-publish-private h3 { color: var(--red-warn); }
.aa-publish ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.3rem;
}
.aa-publish li {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ink-mid);
  padding-left: 1.2rem;
  position: relative;
}
.aa-publish-public li::before {
  content: "+";
  position: absolute;
  left: 0;
  color: var(--green-ok);
  font-weight: 700;
}
.aa-publish-private li::before {
  content: "×";
  position: absolute;
  left: 0;
  color: var(--red-warn);
  font-weight: 700;
}
.aa-publish-note {
  font-size: 0.86rem;
  color: var(--ink-soft);
  font-style: italic;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-soft);
}

/* status ------------------------------------------------------------ */
.aa-section-status { background: rgba(20, 35, 57, 0.4); }
.aa-status {
  background: var(--bg-card);
  border: 1px solid var(--rule);
}
.aa-status-row {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1.2rem;
  padding: 1rem 1.4rem;
  border-bottom: 1px solid var(--rule-soft);
  align-items: baseline;
}
.aa-status-row:last-child { border-bottom: none; }
.aa-status-key {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brass);
}
.aa-status-val {
  font-size: 0.98rem;
  color: var(--ink-mid);
}

/* apply ------------------------------------------------------------- */
.aa-apply {
  padding: 5rem 3rem 6rem;
  text-align: center;
  background: linear-gradient(180deg, transparent, rgba(212, 166, 74, 0.04));
  border-bottom: 1px solid var(--rule);
}
.aa-apply-title {
  font-family: var(--font-disp);
  font-weight: 400;
  font-size: 2.2rem;
  color: var(--ink);
  margin-bottom: 1.2rem;
}
.aa-apply-lede {
  font-size: 1.04rem;
  color: var(--ink-mid);
  max-width: 42rem;
  margin: 0 auto 2rem;
}
.aa-apply-mail {
  display: inline-block;
  font-family: var(--font-disp);
  font-size: 1.8rem;
  color: var(--brass-hot);
  text-decoration: none;
  padding: 0.6rem 0;
  border-bottom: 2px solid var(--brass);
  margin-bottom: 1.2rem;
}
.aa-apply-mail:hover { color: var(--ink); border-bottom-color: var(--steel); }
.aa-apply-fine {
  font-size: 0.88rem;
  color: var(--ink-soft);
  font-style: italic;
}

/* footer ------------------------------------------------------------ */
.aa-foot {
  border-top: 1px solid var(--rule);
  padding: 1.8rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--ink-soft);
}
.aa-foot-l, .aa-foot-r { display: flex; align-items: center; gap: 0.7rem; }
.aa-foot-r a { color: var(--ink-mid); text-decoration: none; }
.aa-foot-r a:hover { color: var(--steel-hot); }
.aa-foot-sep { color: var(--ink-mute); }

/* responsive -------------------------------------------------------- */
@media (max-width: 860px) {
  .aa-mast { padding: 1.1rem 1.4rem; }
  .aa-mast-r { gap: 0.9rem; font-size: 0.86rem; }
  .aa-main { padding: 0 1.4rem; }
  .aa-hero { padding: 3.5rem 0 3rem; }
  .aa-hero-title { font-size: 2.1rem; }
  .aa-hero-lede { font-size: 1rem; }
  .aa-section { padding: 2.5rem 0; }
  .aa-section-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .aa-aside { position: static; }
  .aa-publish-grid { grid-template-columns: 1fr; }
  .aa-mechanics li { grid-template-columns: 2.4rem 1fr; gap: 0.8rem; padding: 1.1rem 1.2rem; }
  .aa-step { font-size: 1.3rem; }
  .aa-status-row { grid-template-columns: 1fr; gap: 0.35rem; padding: 0.85rem 1rem; }
  .aa-apply { padding: 3rem 1.4rem 3.5rem; }
  .aa-foot { padding: 1.4rem; flex-direction: column; gap: 0.6rem; text-align: center; }
}