/* Aveon Partners — site styles
   Brand: navy #1B2A4A · brass #B08D57 · slate #5B6B7F · sky #8FB3CF · ivory #F5F1E8 · body #2D2D2D
   Balance target per screen: 60% white/ivory · 30% navy · 10% brass
   Headings use Archivo (variable width) as a stand-in for the extended grotesk pending license. */

/* ---------- tokens: light (default) ---------- */
:root {
  --ground:        #F5F1E8;
  --surface:       #FFFFFF;
  --ink:           #2D2D2D;
  --ink-strong:    #1B2A4A;
  --muted:         #5B6B7F;
  --accent:        #B08D57;
  --rule:          rgba(27, 42, 74, 0.16);
  --rule-soft:     rgba(27, 42, 74, 0.08);
  --inverse-bg:    #1B2A4A;
  --inverse-ink:   #F5F1E8;
  --inverse-muted: #A8B6C8;
  --inverse-rule:  rgba(245, 241, 232, 0.22);
  --focus:         #B08D57;

  --measure: 63ch;
  --step--1: clamp(0.82rem, 0.80rem + 0.10vw, 0.88rem);
  --step-0:  clamp(1.03rem, 0.99rem + 0.18vw, 1.15rem);
  --step-1:  clamp(1.22rem, 1.14rem + 0.36vw, 1.45rem);
  --step-2:  clamp(1.52rem, 1.35rem + 0.78vw, 2.05rem);
  --step-3:  clamp(1.95rem, 1.62rem + 1.55vw, 3.05rem);
  --step-4:  clamp(2.35rem, 1.75rem + 2.80vw, 4.20rem);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:        #131D31;
    --surface:       #1B2A4A;
    --ink:           #E6E2D8;
    --ink-strong:    #F5F1E8;
    --muted:         #94A5BA;
    --accent:        #CDA872;
    --rule:          rgba(245, 241, 232, 0.20);
    --rule-soft:     rgba(245, 241, 232, 0.10);
    --inverse-bg:    #0E1625;
    --inverse-ink:   #F5F1E8;
    --inverse-muted: #94A5BA;
    --inverse-rule:  rgba(245, 241, 232, 0.20);
    --focus:         #CDA872;
  }
}

:root[data-theme="dark"] {
  --ground:        #131D31;
  --surface:       #1B2A4A;
  --ink:           #E6E2D8;
  --ink-strong:    #F5F1E8;
  --muted:         #94A5BA;
  --accent:        #CDA872;
  --rule:          rgba(245, 241, 232, 0.20);
  --rule-soft:     rgba(245, 241, 232, 0.10);
  --inverse-bg:    #0E1625;
  --inverse-ink:   #F5F1E8;
  --inverse-muted: #94A5BA;
  --inverse-rule:  rgba(245, 241, 232, 0.20);
  --focus:         #CDA872;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: Georgia, "Iowan Old Style", "Times New Roman", serif;
  font-size: var(--step-0);
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

h1, h2, h3, h4, .display, .label, .nav a, .btn, .stage-n, .eyebrow {
  font-family: Archivo, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-variation-settings: "wdth" 112;
}

h1, h2, h3, h4 {
  color: var(--ink-strong);
  text-wrap: balance;
  line-height: 1.1;
  letter-spacing: -0.005em;
  margin: 0;
  font-weight: 600;
}

h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }

p { margin: 0; max-width: var(--measure); }
a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.eyebrow, .label {
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 600;
  font-variation-settings: "wdth" 100;
  color: var(--muted);
  margin: 0;
}

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 24px;
}

.band { padding-block: clamp(56px, 8vw, 108px); }
.band--tight { padding-block: clamp(40px, 5vw, 64px); }

.band--invert {
  background: var(--inverse-bg);
  color: var(--inverse-ink);
}
.band--invert h1, .band--invert h2, .band--invert h3, .band--invert h4 { color: var(--inverse-ink); }
.band--invert .eyebrow, .band--invert .label { color: var(--inverse-muted); }

.band--paper { background: var(--surface); }

.stack { display: flex; flex-direction: column; }
.stack > * { margin: 0; }
.gap-s  { gap: 12px; }
.gap-m  { gap: 20px; }
.gap-l  { gap: 32px; }
.gap-xl { gap: 56px; }

.lede { font-size: var(--step-1); line-height: 1.5; color: var(--ink); }
.muted { color: var(--muted); }

/* the single brass element per page */
.brass-rule {
  width: 88px;
  height: 6px;
  background: var(--accent);
  border: 0;
  margin: 0;
}

hr.hair {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 0;
}

/* ---------- header ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ground);
  border-bottom: 1px solid var(--rule-soft);
}
.site-head__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 16px;
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  color: var(--ink-strong);
  text-decoration: none;
  flex: 0 0 auto;
}
.brand svg { display: block; width: 148px; height: auto; }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  flex-wrap: wrap;
}
.nav a {
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  text-decoration: none;
  color: var(--muted);
  padding-block: 4px;
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--ink-strong); }
.nav a[aria-current="page"] {
  color: var(--ink-strong);
  border-bottom-color: var(--accent);
}

.btn {
  display: inline-block;
  background: var(--ink-strong);
  color: var(--ground);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 20px;
  border: 1px solid var(--ink-strong);
  border-radius: 1px;
}
.btn:hover { background: transparent; color: var(--ink-strong); }

.band--invert .btn,
.hero .btn {
  background: var(--inverse-ink);
  color: var(--inverse-bg);
  border-color: var(--inverse-ink);
}
.band--invert .btn:hover,
.hero .btn:hover { background: transparent; color: var(--inverse-ink); }

/* ---------- hero ---------- */
.hero { background: var(--inverse-bg); color: var(--inverse-ink); }
.hero__inner { padding-block: clamp(64px, 10vw, 132px); display: flex; flex-direction: column; gap: 28px; }
.hero h1 { color: var(--inverse-ink); max-width: 17ch; }
.hero p { color: var(--inverse-muted); max-width: 54ch; font-size: var(--step-1); }
.hero .brass-rule { margin-block: 4px; }

/* ---------- point of view ---------- */
.pov { display: grid; gap: clamp(36px, 5vw, 56px); }
.pov__movement { display: flex; flex-direction: column; gap: 18px; }
.pov__movement h2 { max-width: 20ch; }
.pov__movement p { font-size: var(--step-1); line-height: 1.55; }
.pov__movement p:last-child { color: var(--ink-strong); }

/* ---------- generic columns ---------- */
.cols {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
}
.col { display: flex; flex-direction: column; gap: 12px; }
.col h3 { font-size: var(--step-1); }
.col p { font-size: var(--step-0); color: var(--ink); }

/* service / sector entries separated by rules, not cards */
.entry {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-block: clamp(28px, 3.5vw, 44px);
  border-top: 1px solid var(--rule);
}
.entry:first-of-type { border-top: 0; padding-top: 0; }

/* ---------- process stages ---------- */
.stage {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: clamp(16px, 3vw, 32px);
  padding-block: clamp(30px, 4vw, 46px);
  border-top: 1px solid var(--rule);
}
.stage:first-of-type { border-top: 0; }
.stage-n {
  font-size: var(--step-2);
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.15;
}
.stage__body { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.stage__body h3 { font-size: var(--step-2); }

.facts {
  display: grid;
  gap: 18px 32px;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  padding-top: 6px;
}
.fact { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.fact p { font-size: var(--step--1); line-height: 1.5; max-width: 42ch; }

/* ---------- risk list ---------- */
.risks { display: grid; gap: 0; }
.risk {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-block: 26px;
  border-top: 1px solid var(--rule);
}
.risk:first-child { border-top: 0; padding-top: 0; }
.risk h3 { font-size: var(--step-1); }

/* ---------- form ---------- */
.form-grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}
form.inquiry { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-family: Archivo, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--muted);
}
.field input, .field select, .field textarea {
  font-family: Georgia, "Times New Roman", serif;
  font-size: var(--step-0);
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 1px;
  padding: 11px 12px;
  width: 100%;
}
.field textarea { min-height: 108px; resize: vertical; }
button.btn { cursor: pointer; font-family: Archivo, Helvetica, Arial, sans-serif; align-self: flex-start; }

.note {
  border-left: 2px solid var(--accent);
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.note p { font-size: var(--step--1); color: var(--muted); max-width: 48ch; }

/* ---------- placeholder marker ---------- */
.placeholder {
  border: 1px dashed var(--rule);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.placeholder p { font-size: var(--step--1); color: var(--muted); }

/* ---------- CTA + footer ---------- */
.cta__inner { display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
.cta__inner p { max-width: 52ch; }

.site-foot {
  background: var(--inverse-bg);
  color: var(--inverse-muted);
  padding-block: 48px;
  font-size: var(--step--1);
}
.site-foot a { color: var(--inverse-ink); text-decoration: none; }
.site-foot a:hover { text-decoration: underline; }
.foot-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.foot-col { display: flex; flex-direction: column; gap: 8px; }
.foot-col .label { color: var(--inverse-ink); margin-bottom: 4px; }
.foot-bottom {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--inverse-rule);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* draft banner, removed before launch */
.draft-flag {
  background: var(--accent);
  color: #1B2A4A;
  font-family: Archivo, Helvetica, Arial, sans-serif;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  text-align: center;
  padding: 7px 16px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

@media (max-width: 620px) {
  .stage { grid-template-columns: 44px minmax(0, 1fr); }
  .site-head__inner { gap: 14px; }
  .brand svg { width: 124px; }
}

/* ---------- sector accordion ---------- */
.sectors { display: flex; flex-direction: column; }

.sector {
  border-top: 1px solid var(--rule);
}
.sector:first-of-type { border-top: 0; }

.sector > summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-block: 22px;
  cursor: pointer;
  list-style: none;
  font-family: Archivo, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-variation-settings: "wdth" 112;
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--ink-strong);
}
.sector > summary::-webkit-details-marker { display: none; }
.sector > summary:hover { color: var(--accent); }

.sector__mark {
  flex: 0 0 auto;
  font-size: var(--step-1);
  font-weight: 400;
  color: var(--muted);
  line-height: 1;
}
.sector[open] > summary .sector__mark { color: var(--accent); }
.sector[open] > summary .sector__mark::before { content: "\2013"; }
.sector:not([open]) > summary .sector__mark::before { content: "+"; }

.sector__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 28px;
  max-width: var(--measure);
}
.sector__body p { font-size: var(--step-0); }
.sector__body .label { color: var(--muted); }

/* ---------- facts band ---------- */
.facts-band {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding-block: clamp(26px, 3vw, 38px);
}
.facts-band .fact-item { display: flex; flex-direction: column; gap: 6px; }
.facts-band .fact-item p:last-child {
  font-family: Archivo, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-variation-settings: "wdth" 112;
  font-size: var(--step-1);
  font-weight: 500;
  color: var(--ink-strong);
  line-height: 1.25;
}

/* four-up capability grid: fill the row rather than orphaning the fourth item */
.cols--quad { grid-template-columns: repeat(auto-fit, minmax(196px, 1fr)); }
@media (max-width: 900px) { .cols--quad { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .cols--quad { grid-template-columns: minmax(0, 1fr); } }

/* ---------- partner portraits ---------- */
.person {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}
.person__body { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.person__body h2 { font-size: var(--step-2); }
.person__body .label { margin-bottom: 4px; }
.portrait {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: top center;
  background: #FFFFFF;
  border: 1px solid var(--rule-soft);
  border-radius: 1px;
  display: block;
}
@media (max-width: 640px) {
  .person { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .portrait { max-width: 200px; }
}

/* ---------- tabs ---------- */
.tablist {
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  flex-wrap: wrap;
  border-bottom: 1px solid var(--rule);
}
.tablist button {
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
  padding: 0 0 12px;
  cursor: pointer;
  font-family: Archivo, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-variation-settings: "wdth" 112;
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--muted);
  line-height: 1.2;
}
.tablist button:hover { color: var(--ink-strong); }
.tablist button[aria-selected="true"] {
  color: var(--ink-strong);
  border-bottom-color: var(--accent);
}
.tabpanel:focus { outline: none; }

.jump { display: flex; gap: 14px; align-items: baseline; font-size: var(--step--1); }

/* tabs: close the gap between the tablist and its panel */
.tabs > section:first-of-type { padding-bottom: 0; }
.tabs [role="tabpanel"] > section:first-of-type { padding-top: clamp(26px, 3vw, 40px); }

/* grouped sector: sub-sectors revealed inside one accordion */
.sector__body--grouped { max-width: none; gap: 0; }
.sector__body--grouped > p:first-child { max-width: var(--measure); margin-bottom: 8px; }
.subsector {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: var(--measure);
  padding-block: clamp(22px, 2.6vw, 30px);
  border-top: 1px solid var(--rule);
}
.subsector h3 {
  font-size: var(--step-1);
  font-variation-settings: "wdth" 112;
}

/* ---------- research index (blog) ---------- */
.research-sector { scroll-margin-top: 100px; }
@media (max-width: 620px) {
  .research-sector { scroll-margin-top: 230px; }
}
.research-toggle {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.research-toggle:hover { color: var(--accent); }
.research-toggle__hint {
  flex: 0 0 auto;
  color: var(--muted);
  font-family: Archivo, Helvetica, Arial, sans-serif;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.research-toggle__mark::after { content: "+"; }
.research-toggle[aria-expanded="true"] .research-toggle__mark::after { content: "\2212"; }
.postlist[hidden] { display: none; }
.research-more { margin-top: calc(-1 * clamp(26px, 3.4vw, 40px)); }
.research-more .post:first-child { border-top: 1px solid var(--rule); padding-top: clamp(26px, 3.4vw, 40px); }
@media (max-width: 640px) {
  .research-toggle { align-items: flex-start; }
}
.postlist { display: flex; flex-direction: column; }
.post {
  display: grid;
  grid-template-columns: 172px minmax(0, 1fr);
  gap: clamp(18px, 3vw, 40px);
  padding-block: clamp(26px, 3.4vw, 40px);
  border-top: 1px solid var(--rule);
}
.post:first-child { border-top: 0; padding-top: 0; }
.post__meta { display: flex; flex-direction: column; gap: 6px; }
.post__date {
  font-family: Archivo, Helvetica, Arial, sans-serif;
  font-variation-settings: "wdth" 100;
  font-size: var(--step--1);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.post__tag {
  font-family: Archivo, Helvetica, Arial, sans-serif;
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.35;
}
.post__body { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.post__body h3 { font-size: var(--step-2); }
.post__body h3 a { text-decoration: none; }
.post__body h3 a:hover { color: var(--accent); }
.post__more {
  font-family: Archivo, Helvetica, Arial, sans-serif;
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--ink-strong);
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  align-self: flex-start;
  padding-bottom: 2px;
}
.post__more:hover { color: var(--accent); }
@media (max-width: 640px) {
  .post { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .post__meta { flex-direction: row; gap: 14px; align-items: baseline; }
}

/* ---------- article page ---------- */
.article { display: flex; flex-direction: column; gap: 22px; max-width: var(--measure); }
.article h2 {
  font-size: var(--step-2);
  margin-top: clamp(16px, 2vw, 26px);
}
.article p { font-size: var(--step-0); }
.article ul { margin: 0; padding-left: 22px; max-width: var(--measure); }
.article li { margin-bottom: 10px; }
.article__byline {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: var(--step--1);
  color: var(--muted);
  padding-top: 4px;
}
.article__note {
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: var(--measure);
}
.backlink {
  font-family: Archivo, Helvetica, Arial, sans-serif;
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
}
.backlink:hover { color: var(--accent); }