/* Chrome: body baseline, sticky topbar, brand-marks, nav-strip, footer.
   Adapted from williamsf1-report for a full-width (no right media column)
   prospectus, recolored to Crisp indigo. */

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--off-white);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
/* Fine film-grain noise over everything, matching the source report's texture. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.5 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 15rem 15rem;
  pointer-events: none;
  z-index: 30;
  opacity: 0.12;
  mix-blend-mode: multiply;
}

/* ── Sticky chrome ──────────────────────────────────────────────────────── */
.site-chrome { position: sticky; top: 0; z-index: 20; background: var(--off-white); }
.topbar {
  padding: 1rem 0;
  display: grid;
  grid-template-columns: 1fr min(calc(73.75rem - 2 * clamp(1.75rem, 5vw, 4rem)), calc(100% - 2 * clamp(1.75rem, 5vw, 4rem))) 1fr;
  align-items: center;
  background: var(--off-white);
  border-bottom: 0.0625rem solid var(--rule);
}
.topbar-inner {
  grid-column: 2; grid-row: 1;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.topbar-left { display: flex; align-items: center; gap: 0.875rem; }
.topbar-right { display: flex; align-items: center; gap: 0.75rem; }

.brand-mark { display: inline-flex; align-items: center; }
.brand-divider { width: 0.0625rem; height: 1.5rem; background: var(--rule); }

/* Crisp client wordmark (dark variant) sized to the topbar. */
.tb-logo { height: 1.5rem; width: auto; display: block; }
.pr-logo { height: 1.5rem; }
/* WISLR agency mark, recolored to the brand indigo via a luminance mask. */
.wislr-mark {
  display: block;
  height: 1.5rem;
  aspect-ratio: 338 / 123.4;
  background-color: var(--accent);
  -webkit-mask: url('assets/wislr-logo-official.svg') no-repeat center / contain;
  mask: url('assets/wislr-logo-official.svg') no-repeat center / contain;
}
.agency-tag {
  font-size: 0.625rem; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mid-gray); white-space: nowrap;
}

/* ── Nav strip ──────────────────────────────────────────────────────────── */
.nav-strip {
  background: var(--off-white);
  border-bottom: 0.0625rem solid var(--rule);
  overflow-x: auto; overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.nav-strip::-webkit-scrollbar { display: none; }
.nav-strip-inner {
  max-width: 73.75rem; margin: 0 auto;
  padding: 0 clamp(1.75rem, 5vw, 4rem);
  display: flex; align-items: center; gap: 0;
}
.nav-links { display: flex; flex-shrink: 0; gap: 0; }
.nav-strip a {
  text-decoration: none;
  font: 500 0.6875rem/1 'Archivo', sans-serif;
  color: var(--mid-gray);
  padding: 1rem 0.875rem 0.875rem 0;
  margin-right: 1.125rem;
  border-top: 0.125rem solid transparent;
  transition: color 0.15s, border-color 0.15s;
  letter-spacing: 0.1em; text-transform: uppercase; white-space: nowrap;
}
.nav-strip a:hover { color: var(--ink); }
.nav-strip a.active { color: var(--black); border-top-color: var(--accent); }
.nav-meta {
  margin-left: auto; align-self: center; flex-shrink: 0; padding-left: 1.375rem;
  font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mid-gray); white-space: nowrap;
}

/* ── Mobile nav dropdown: the tab strip collapses into a menu on phones ── */
.nav-dd { display: none; position: relative; flex: 1; min-width: 0; }
.nav-dd-btn {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  background: none; border: 0; cursor: pointer; text-align: left;
  font: 600 0.72rem/1 'Archivo', sans-serif; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--black); padding: 0.95rem 0;
}
.nav-dd-chev { width: 0.9rem; height: 0.9rem; color: var(--accent); flex-shrink: 0; transition: transform 0.18s; }
.nav-dd.open .nav-dd-chev { transform: rotate(180deg); }
.nav-dd-menu {
  position: absolute; left: 0; right: 0; top: calc(100% + 0.2rem); z-index: 60;
  background: #fff; border: 0.0625rem solid var(--rule); border-radius: 0.75rem;
  box-shadow: 0 0.75rem 2rem rgba(27, 28, 58, 0.16); padding: 0.4rem; overflow: hidden;
}
.nav-dd-menu a {
  display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  text-decoration: none; border-radius: 0.5rem;
  font: 500 0.82rem/1.2 'Archivo', sans-serif; letter-spacing: 0.01em; text-transform: none;
  color: var(--ink); padding: 0.75rem 0.85rem; margin: 0; border-top: 0;
}
.nav-dd-menu a:hover { background: var(--accent-light); }
.nav-dd-menu a.active { color: var(--accent-deep); font-weight: 700; background: var(--accent-light); }
.nav-dd-menu a svg { width: 0.95rem; height: 0.95rem; color: var(--accent); flex-shrink: 0; }

@media (max-width: 640px) {
  .nav-strip { overflow: visible; }
  .nav-links { display: none; }
  .nav-dd { display: block; }
}

/* ── Page main ──────────────────────────────────────────────────────────── */
.page-main { padding: 2.75rem clamp(1.75rem, 5vw, 4rem) 5.5rem; }

/* ── Indigo brand footer band ───────────────────────────────────────────── */
.site-footer { background: var(--accent); color: #fff; }
.site-footer-inner {
  max-width: 73.75rem; margin: 0 auto;
  padding: 2.5rem clamp(1.75rem, 5vw, 4rem);
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1.125rem 1.75rem; flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: baseline; gap: 0.875rem; }
.footer-rr {
  font-family: 'Archivo', sans-serif; font-weight: 700;
  font-size: 1.25rem; letter-spacing: -0.01em; color: #fff;
}
.footer-tag {
  font-size: 0.75rem; font-weight: 500; letter-spacing: 0.18em;
  text-transform: uppercase; color: rgba(255,255,255,0.72);
}
.footer-note {
  font-size: 0.75rem; font-weight: 500; letter-spacing: 0.14em;
  text-transform: uppercase; color: rgba(255,255,255,0.82);
  display: flex; align-items: baseline; gap: 0.75rem;
}

/* ── Per-page footer rule ───────────────────────────────────────────────── */
.rpt-footer { padding: 0 clamp(1.75rem, 5vw, 4rem) 3rem; }
.rpt-footer-inner {
  max-width: 73.75rem; border-top: 0.0625rem solid var(--rule); padding-top: 1.5rem;
  font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mid-gray);
}

@media (max-width: 760px) {
  .footer-note { white-space: normal; }
}

/* Mobile footer: note aligns under the partnership tag column. */
@media (max-width: 760px) {
  .site-footer-inner { display: flex; flex-direction: column; align-items: flex-start; gap: 0.8rem; }
  .footer-brand { display: contents; }
}

/* WISLR's own sheet: the chrome carries the WISLR mark. */
/* Box must match the logo art's 62x23 ratio, otherwise mask:contain fits by
   height and leaves empty padding either side - which reads as a gap. */
.tb-wislr-mark { height: 2.1rem; width: auto; aspect-ratio: 62 / 23; display: block; }

/* WISLR wordmark inside the AI-orbit hub badge. */
.hub-wislr-mark { width: 78%; height: 58%; display: block; }

/* Header lockup, matching wislr.ai: green wordmark, small gap, AI in Pridi. */
.tb-lockup { display: inline-flex; align-items: flex-start; gap: 0.08rem; }
/* AI rides as a superscript off the wordmark, as on wislr.ai. */
.tb-ai { font-family: 'Pridi', Georgia, serif; font-weight: 600; font-size: 1.2rem; line-height: 1; color: var(--accent); align-self: flex-start; margin-top: 0.1rem; }

/* Footer copyright, set on the wordmark's baseline via .footer-brand. */
.footer-copy { font-size: 0.72rem; color: rgba(255,255,255,0.72); letter-spacing: 0.01em; }