/* ==========================================================================
   Landing page — full-viewport hero, audience grid, status strip, recent research.
   ========================================================================== */

/* ----- Hero ----- */
.hero--landing {
  position: relative;
  min-height: 100svh;
  padding-block: clamp(var(--s-7), 12vh, var(--s-9)) var(--s-9);
  overflow: hidden;
  isolation: isolate;
  background: var(--surface-base);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1200ms var(--ease-out);
}
.hero__canvas.is-ready { opacity: 1; }

.hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 80% 0%, transparent 0%, var(--surface-base) 70%),
    radial-gradient(80% 60% at 0% 100%, transparent 0%, var(--surface-base) 80%);
  mix-blend-mode: multiply;
}
@media (prefers-color-scheme: dark) {
  .hero__veil { mix-blend-mode: screen; opacity: 0.7; }
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--s-5);
  padding-block: var(--s-7) var(--s-7);
  max-width: 1180px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--ink-muted);
  margin: 0;
}
.hero__eyebrow .status-dot {
  background: var(--ink-primary);
}
.hero__eyebrow .status-dot::after { background: var(--ink-primary); }

.hero__h1 {
  margin: 0;
  font-size: var(--fs-display-1);
  line-height: 0.97;
  letter-spacing: -0.045em;
  font-weight: var(--weight-bold);
  color: var(--ink-primary);
  text-wrap: balance;
}
.hero__h1-em {
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: var(--weight-regular);
  letter-spacing: -0.02em;
}

.hero__subline {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.6vw, 1.125rem);
  letter-spacing: 0.02em;
  color: var(--ink-secondary);
}

.hero__lead {
  font-family: var(--font-serif);
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  letter-spacing: 0;
  color: var(--ink-secondary);
  max-width: 64ch;
  margin: var(--s-3) 0 var(--s-2);
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-3);
}

.hero__stack {
  list-style: none;
  margin: var(--s-7) 0 0;
  padding: 0;
  display: grid;
  gap: var(--s-2);
  grid-template-columns: 1fr;
  border-top: 1px solid var(--border);
  padding-top: var(--s-5);
  max-width: 880px;
}
@media (min-width: 768px) {
  .hero__stack { grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }
}
.hero__stack li {
  display: flex;
  align-items: baseline;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--ink-secondary);
}
.hero__stack-num {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  letter-spacing: 0.12em;
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--s-5);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--ink-muted);
  pointer-events: none;
}
.hero__scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom,
              var(--ink-muted) 0%,
              var(--ink-muted) 50%,
              transparent 100%);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: -100% 0 0 0;
  background: linear-gradient(to bottom, transparent, var(--ink-primary), transparent);
  animation: scroll-flow 2.4s var(--ease-in-out) infinite;
}
@keyframes scroll-flow {
  0%   { transform: translateY(0%);  }
  100% { transform: translateY(220%); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__scroll-line::after { animation: none; }
}

@media (max-width: 640px) {
  .hero__scroll-hint { display: none; }
}

/* ----- Audience grid ----- */
.audience__header { max-width: 56ch; margin-bottom: var(--s-7); }
.audience__heading {
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  letter-spacing: -0.022em;
  margin: var(--s-2) 0 var(--s-3);
}
.audience__intro {
  color: var(--ink-secondary);
  font-family: var(--font-serif);
  font-size: 1.125rem;
  margin: 0;
}

.audience__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
}
@media (min-width: 768px) { .audience__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1280px) { .audience__grid { grid-template-columns: repeat(5, 1fr); } }

.audience-card {
  position: relative;
  padding: var(--s-5);
  min-height: 280px;
}
.audience-card__num {
  position: absolute;
  top: var(--s-3);
  right: var(--s-4);
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  color: var(--ink-faint);
}
@media (min-width: 1280px) {
  .audience-card { min-height: 340px; }
}

/* ----- Status strip (full-bleed dark band) ----- */
.status-strip {
  background: var(--surface-inverse);
  color: var(--ink-on-inverse);
  padding-block: clamp(var(--s-7), 8vw, var(--s-9));
  margin-block: 0;
  position: relative;
  overflow: hidden;
}
.status-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, transparent 0 31px, rgba(255,255,255,0.03) 31px 32px),
    repeating-linear-gradient(90deg, transparent 0 31px, rgba(255,255,255,0.03) 31px 32px);
  pointer-events: none;
}
.status-strip__eyebrow { color: var(--ink-on-inverse-muted); margin-bottom: var(--s-4); }
.status-strip__heading {
  font-family: var(--font-serif);
  font-weight: var(--weight-regular);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.35;
  letter-spacing: -0.012em;
  max-width: 56ch;
  margin: 0 0 var(--s-7);
  color: var(--ink-on-inverse);
}
.status-strip__em {
  font-style: normal;
  font-family: var(--font-sans);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.018em;
}
.status-strip__metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-5);
  margin: 0;
  padding-top: var(--s-5);
  border-top: 1px solid var(--ink-on-inverse-faint);
}
@media (min-width: 768px) { .status-strip__metrics { grid-template-columns: repeat(4, 1fr); } }
.status-strip__metrics > div { display: flex; flex-direction: column; gap: var(--s-2); }
.status-strip__metrics dt {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--ink-on-inverse-muted);
  margin: 0;
}
.status-strip__metrics dd {
  margin: 0;
  font-size: clamp(1.125rem, 2vw, 1.625rem);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.012em;
}

/* ----- Recent research ----- */
.recent-research__header {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-6);
}
.recent-research__heading {
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  letter-spacing: -0.022em;
  margin: var(--s-2) 0 0;
  max-width: 28ch;
}
.recent-research__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}
@media (min-width: 768px) { .recent-research__grid { grid-template-columns: repeat(3, 1fr); } }

.research-card {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  min-height: 320px;
}
.research-card__meta {
  display: flex;
  gap: var(--s-2);
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex-wrap: wrap;
  align-items: center;
}

/* ----- Standards window strip ----- */
.standards-window {
  background:
    radial-gradient(80% 60% at 100% 0%, color-mix(in srgb, var(--accent) 8%, transparent) 0%, transparent 70%),
    var(--surface-elevated);
  position: relative;
  overflow: hidden;
}
.standards-window__heading {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.3;
  letter-spacing: -0.012em;
  font-weight: var(--weight-regular);
  margin: var(--s-3) 0 var(--s-4);
  max-width: 36ch;
}
.standards-window__sub {
  color: var(--ink-secondary);
  margin: 0 0 var(--s-5);
  max-width: 56ch;
}