/* ==========================================================================
   Big Bear Associates — v2 private draft styles
   Static only: no frameworks, no scripts, no external fonts or assets.
   System font stacks; the logo PNG is the only image.
   ========================================================================== */

:root {
  /* Paper and ink, one accent. */
  --paper:      #faf7f2;
  --paper-deep: #f3eee5;
  --ink:        #16130f;
  --ink-soft:   #4a433a;   /* ~9.1:1 on --paper */
  --ink-mute:   #6b6154;   /* ~5.7:1 on --paper, ~5.2:1 on --paper-deep */
  --rule:       #ddd4c6;
  --rule-firm:  #c4b9a7;

  /* Approved dark red: ~6.7:1 on --paper, ~6.2:1 on --paper-deep, so it is
     safe for text as well as marks. The brighter logo red stays in the logo. */
  --red:        #b0140d;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", ui-serif, Georgia, serif;
  --sans:  ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono:  ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --shell:   76rem;
  --gutter:  clamp(1.25rem, 5vw, 4.5rem);
  --col-gap: clamp(2rem, 5vw, 5rem);
}

/* --------------------------------------------------------------- reset -- */

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }

h1, h2, h3, p, dl, dd, ol, ul { margin: 0; }
ol, ul { padding: 0; list-style: none; }

a { color: inherit; }

p, dd, li { text-wrap: pretty; }

[id] { scroll-margin-top: 1.5rem; }

/* --------------------------------------------------------- foundations -- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.9rem;
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus { transform: none; }

/* One strong focus style everywhere: 3px approved red, offset from the
   element so it never merges with underlines or rules. */
:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 3px;
}

.skip-link:focus-visible { outline-color: var(--ink); outline-offset: 2px; }

/* Small uppercase label with a red square: the site's section marker. */
.kicker {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.4;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.kicker::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--red);
}

.lede {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* --------------------------------------------------------------- header -- */

.site-header { border-bottom: 1px solid var(--rule); }

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 2rem;
  padding-block: 1.1rem;
}

.brand { display: inline-flex; }

/* The logo is a lockup on a light ground; multiply lets it sit on the warm
   paper without a visible plate. */
.brand-logo {
  width: auto;
  height: clamp(1.6rem, 4vw, 2.1rem);
  mix-blend-mode: multiply;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.75rem;
}

.site-nav a {
  display: inline-block;
  padding-block: 0.4rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  background: linear-gradient(var(--red), var(--red)) 0 100% / 0 2px no-repeat;
  transition: background-size 180ms ease, color 140ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background-size: 100% 2px;
}

.nav-note-link {
  color: var(--ink-mute);
}

/* ----------------------------------------------------------------- hero -- */

.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(3rem, 10vw, 7.5rem);
}

.hero-inner {
  position: relative;
  z-index: 1;
}

/* The BBA monogram (paw inside the first B) cropped from the horizontal
   lockup: the monogram is the left 1230 of 3254 px, so the image is scaled to
   3254 / 1230 = 264.6% of the box and pinned left. Grayscale plus multiply
   keeps any white plate invisible; it reads as a watermark in the paper. */
.hero-mark {
  position: absolute;
  z-index: 0;
  top: clamp(1rem, 4vw, 3rem);
  right: -14vw;
  width: clamp(20rem, 64vw, 60rem);
  aspect-ratio: 1230 / 646;
  background: url("assets/bba-logo.png") 0 50% / 264.6% auto no-repeat;
  filter: grayscale(1);
  opacity: 0.09;
  mix-blend-mode: multiply;
  pointer-events: none;
}

.hero-title {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  font-family: var(--serif);
  font-size: clamp(2.4rem, 6.8vw, 5.5rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.025em;
}

.hero-line { display: block; }

.hero-title em { font-style: italic; }
.hero-title .accent { color: var(--red); }

.hero-foot {
  display: grid;
  gap: 1.75rem;
  max-width: 60rem;
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule-firm);
}

@media (min-width: 52rem) {
  .hero-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 3rem;
  }
}

.hero-def {
  max-width: 44ch;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.55;
  color: var(--ink-soft);
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 0.75rem;
  padding: 0.9rem 1.4rem;
  /* Transparent border becomes visible in forced-colors mode. */
  border: 2px solid transparent;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background-color 140ms ease;
}

.cta:hover { background: var(--red); }

.cta-arrow { transition: transform 180ms ease; }
.cta:hover .cta-arrow { transform: translateX(0.2rem); }

.mission {
  display: grid;
  gap: 1rem;
  margin-top: clamp(3.5rem, 9vw, 6.5rem);
  padding-block: clamp(2rem, 5vw, 3.25rem) clamp(3rem, 7vw, 5rem);
  border-top: 2px solid var(--ink);
}

@media (min-width: 52rem) {
  .mission {
    grid-template-columns: minmax(0, 1fr) minmax(0, 3fr);
    column-gap: var(--col-gap);
  }

  .mission-label { padding-top: 0.55rem; align-self: start; }
}

.mission-text {
  max-width: 32ch;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3vw, 2.3rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

/* ------------------------------------------------------------- sections -- */

.section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  border-top: 1px solid var(--rule);
}

.section-head {
  display: grid;
  gap: 1.1rem;
  max-width: 54rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

/* ---------------------------------------------------------------- focus -- */

/* Desktop: heading on the left, the shared aim across the top of the two
   columns beside it, and the two signposts beneath the aim. Small screens
   stack heading, aim, then signposts. */
.focus-grid {
  display: grid;
  gap: 2rem var(--col-gap);
}

.focus-grid .section-head { margin-bottom: 0.5rem; }

@media (min-width: 60rem) {
  .focus-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .focus-grid .section-head { grid-column: 1; grid-row: 1 / span 2; margin-bottom: 0; }
  .focus-aim { grid-column: 2 / -1; grid-row: 1; }
}

.signpost {
  padding-top: 1.25rem;
  border-top: 2px solid var(--ink);
}

.signpost-index {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--red);
}

.signpost-title {
  margin-top: 0.5rem;
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.signpost p:last-child {
  max-width: 40ch;
  margin-top: 0.7rem;
  color: var(--ink-soft);
}

.focus-aim {
  max-width: 46ch;
  padding-top: 1.25rem;
  border-top: 2px solid var(--red);
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.focus-aim em {
  font-style: italic;
  color: var(--red);
}

/* ------------------------------------------------------------- approach -- */

/* A line with a node per step: vertical on small screens, horizontal when
   the three steps sit side by side. */
.steps {
  display: grid;
  gap: 2.5rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--ink);
}

.step {
  position: relative;
  max-width: 44ch;
}

.step::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  left: calc(-1.5rem - 6px);
  width: 11px;
  height: 11px;
  border: 1px solid var(--ink);
  background: var(--paper);
}

@media (min-width: 52rem) {
  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--col-gap);
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--ink);
  }

  .step { padding-top: 2rem; }

  .step::before {
    top: -6px;
    left: 0;
  }
}

.step-title {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 0.65rem;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.step-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--red);
}

.step p { color: var(--ink-soft); }

/* ----------------------------------------------------------------- work -- */

.work {
  background: var(--paper-deep);
  border-top: 2px solid var(--ink);
}

.work-head {
  display: grid;
  gap: 1.25rem;
}

.work-title {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 7.5vw, 6rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.work-title em {
  font-style: italic;
  color: var(--red);
}

/* One short invitation and the address, offset right: the headline owns the
   left edge, the invitation answers it. */
.work-body {
  max-width: 40rem;
  margin-top: clamp(2rem, 5vw, 3rem);
}

@media (min-width: 60rem) {
  .work-body { margin-left: auto; }
}

.contact {
  display: grid;
  gap: 0.6rem;
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--ink);
}

.contact-lead { color: var(--ink-soft); }

.contact-link {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 4vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--red);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
  overflow-wrap: anywhere;
  transition: color 140ms ease;
}

.contact-link:hover { color: var(--red); }

/* --------------------------------------------------------------- footer -- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: clamp(2.5rem, 6vw, 3.5rem);
}

.footer-inner {
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 52rem) {
  .footer-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    column-gap: 3rem;
  }

  .footer-legal { grid-column: 1 / -1; }
}

.footer-logo {
  width: auto;
  height: 1.6rem;
  mix-blend-mode: multiply;
}

.footer-descriptor {
  margin-top: 0.85rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.footer-nav a {
  display: inline-block;
  padding-block: 0.2rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  text-underline-offset: 0.2em;
  text-decoration-color: var(--rule-firm);
  overflow-wrap: anywhere;
}

.footer-nav a:hover,
.footer-nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration-color: var(--red);
}

.footer-legal {
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-size: 0.82rem;
  color: var(--ink-mute);
}

/* ---------------------------------------------------------- legal pages -- */

.legal { padding-block: clamp(3rem, 8vw, 6rem); }

.legal-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 60rem) {
  .legal-grid {
    grid-template-columns: 13rem minmax(0, 46rem);
    column-gap: var(--col-gap);
  }

  .legal-aside {
    grid-column: 1;
    grid-row: 1 / span 2;
    align-self: start;
    position: sticky;
    top: 2rem;
  }

  .legal-head,
  .legal-body { grid-column: 2; }
}

.legal-docs {
  display: grid;
  gap: 0.35rem;
  margin-top: 1rem;
}

.legal-docs a {
  display: inline-block;
  padding-block: 0.2rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
  text-underline-offset: 0.2em;
  text-decoration-color: var(--rule-firm);
}

.legal-docs a:hover { color: var(--ink); text-decoration-color: var(--red); }

.legal-docs a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
  text-decoration-color: var(--red);
}

.legal-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.legal-updated {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
}

.legal-body {
  max-width: 66ch;
  padding-top: clamp(1.5rem, 4vw, 2.25rem);
  border-top: 2px solid var(--ink);
  color: var(--ink-soft);
}

.legal-body h2 {
  margin-top: 2.25rem;
  margin-bottom: 0.6rem;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 2.6vw, 1.45rem);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.legal-body > h2:first-child { margin-top: 0; }

.legal-body p + p { margin-top: 0.9rem; }

.legal-body ul {
  margin-block: 0.6rem 0.9rem;
  padding-left: 1.25rem;
  list-style: disc;
}

.legal-body li::marker { color: var(--red); }

.legal-body li + li { margin-top: 0.4rem; }

.legal-body strong { color: var(--ink); font-weight: 600; }

.inline-link {
  color: var(--ink);
  text-decoration-color: var(--red);
  text-underline-offset: 0.2em;
  overflow-wrap: anywhere;
}

.inline-link:hover { color: var(--red); }

/* ---------------------------------------------------------------- article -- */

/* Single-column article: reuses .legal-head / .legal-body / .contact, just
   adds the vertical rhythm normally supplied by .legal-grid's column gap. */
.article-grid {
  display: grid;
  gap: 2rem;
}

.article-callout {
  margin-top: 1.2rem;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--red);
  background: var(--paper-deep);
  color: var(--ink);
}

.article-callout p {
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  line-height: 1.45;
  letter-spacing: -0.004em;
}

.article-figure {
  margin-top: 1.3rem;
  padding: 1rem;
  border: 1px solid var(--rule-firm);
  border-radius: 0.25rem;
  background: var(--paper-deep);
}

.article-figure-svg {
  width: 100%;
  height: auto;
  color: var(--ink-soft);
}

.article-figure-svg rect {
  fill: var(--paper);
  stroke: var(--ink-soft);
  stroke-width: 1.5;
}

.article-figure-svg path {
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}

.article-figure-svg text {
  fill: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  text-anchor: middle;
}

.article-figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--ink-mute);
}

@media (max-width: 44rem) {
  .article-figure { padding: 0.8rem; }
  .article-figure-svg text { font-size: 11px; }
}

/* A restrained emphasis for the single note teaser on the home page. */
.notes-teaser {
  max-width: 52rem;
  border-top-color: var(--rule-firm);
}

.notes-teaser .signpost-index {
  color: var(--ink-mute);
}

/* ------------------------------------------ motion / contrast modes / print -- */

/* Editorial preview: distinct discovery and reading surfaces, using BBA tokens. */
.feature-story { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(18rem,.85fr); gap:clamp(1.5rem,4vw,4rem); align-items:center; border-top:1px solid var(--rule-firm); padding-top:1.5rem; }
.feature-image-link img { width:100%; aspect-ratio:16/9; object-fit:cover; }
.feature-copy h3 { margin-top:1rem; font-family:var(--serif); font-weight:400; font-size:clamp(1.8rem,3.4vw,3rem); line-height:1.08; }
.feature-copy > p:not(.kicker) { margin-top:1rem; max-width:54ch; color:var(--ink-soft); }
.feature-read { display:inline-block; margin-top:1.2rem; font-family:var(--mono); font-size:.8rem; letter-spacing:.08em; text-transform:uppercase; text-decoration-color:var(--red); text-underline-offset:.25em; }
.insights-all { margin-top:2rem; }
.insights-intro { max-width:54rem; margin-top:1.5rem; color:var(--ink-soft); font-size:1.15rem; }
.insights-list { margin-top:3rem; border-top:1px solid var(--rule-firm); }
.insight-card { display:block; padding:1.5rem 0; border-bottom:1px solid var(--rule); }
.insight-card h2 { margin-top:.6rem; font-family:var(--serif); font-weight:400; font-size:clamp(1.5rem,2.4vw,2rem); line-height:1.15; }
.insight-card p:not(.kicker) { margin-top:.7rem; max-width:65ch; color:var(--ink-soft); }
.article-meta { margin-top:1rem; font-family:var(--mono); font-size:.75rem; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-mute); }
.article-body { max-width:88ch; margin-inline:auto; }
.article-body > p { margin-top:1rem; }
.article-body > .lede { margin:0 0 1.6rem; font-size:clamp(1.25rem,2vw,1.6rem); line-height:1.4; }
.article-body h2 { margin-top:2rem; font-family:var(--serif); font-weight:400; font-size:clamp(1.6rem,2.8vw,2.2rem); line-height:1.15; }
.article-body ol.sources { padding-left:1.4rem; list-style:decimal; }
.article-body ol.sources li { padding-left:.35rem; margin-top:.8rem; }
.ai-disclosure { padding:.9rem 1rem; border-left:3px solid var(--red); background:var(--paper-deep); font-size:.9rem; }
.crumb { margin-bottom:1rem; font-family:var(--mono); font-size:.75rem; text-transform:uppercase; letter-spacing:.08em; }
@media(max-width:54rem) { .feature-story { grid-template-columns:1fr; } }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .cta:hover .cta-arrow { transform: none; }
}

@media (forced-colors: active) {
  .hero-mark { display: none; }
  .kicker::before { forced-color-adjust: none; background: CanvasText; }
}

@media print {
  .skip-link,
  .site-nav,
  .hero-mark,
  .cta { display: none; }

  body { background: #fff; }
  .work { background: none; }
  .section { padding-block: 2rem; }
}