/* ─── Lab voice (dark) ─────────────────────────────────────────────────────
   Used on /research/ and /work/ — same palette, same rhythm, same widths
   as the foundation pages, just inverted to a warm dark.

   Spacing system shared with institutional.css:
     - Container max-width: 1040px
     - Section padding: clamp(3rem, 6vw, 4.5rem) 0
     - Eyebrow margin-bottom: 0.9rem
   ────────────────────────────────────────────────────────────────────────── */

.lab-page {
  /* Warmer, lighter dark — readable, not oppressive */
  --lab-bg: #1c1a16;
  --lab-bg-elev: #232017;
  --lab-bg-soft: #2a2620;
  --lab-fg: #f4f1ea;
  --lab-fg-dim: #cfc8b9;
  --lab-fg-soft: #948e80;
  --lab-line: rgba(244, 241, 234, 0.14);
  --lab-line-strong: rgba(244, 241, 234, 0.22);
  --lab-accent: #f59e0b;
  --lab-accent-soft: rgba(245, 158, 11, 0.12);

  background: var(--lab-bg);
  color: var(--lab-fg);
  margin: 0 !important;
  max-width: none !important;
  padding: 0 !important;
  width: 100%;
}

.lab-page .foundation-container {
  width: min(100%, 1040px);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.lab-eyebrow {
  margin: 0 0 0.9rem;
  color: var(--lab-accent);
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
}

/* ─── Banner ──────────────────────────────────────────────────────────── */

.lab-banner {
  position: relative;
  min-height: clamp(380px, 52svh, 520px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-bottom: 1px solid var(--lab-line);
}

.lab-banner__image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 38%;
  filter: brightness(0.62) contrast(1.05) saturate(0.7);
  transform: scale(1.03);
  transition: transform 6s ease-out;
}

.lab-banner:hover .lab-banner__image {
  transform: scale(1.06);
}

.lab-banner__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(28,26,22,0.30) 0%, rgba(28,26,22,0.72) 65%, rgba(28,26,22,0.92) 100%),
    radial-gradient(circle at 10% 100%, rgba(245,158,11,0.12), transparent 60%);
  pointer-events: none;
}

.lab-banner__content {
  position: relative;
  z-index: 1;
  padding-top: clamp(3.5rem, 7vw, 5rem);
  padding-bottom: clamp(2.6rem, 5vw, 3.5rem);
  max-width: 880px;
}

/* Cursor spotlight on banner */
.lab-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    480px circle at var(--spot-x, 50%) var(--spot-y, 50%),
    rgba(245, 158, 11, 0.20),
    transparent 55%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 380ms ease;
  z-index: 0;
}

.lab-banner.is-spotlit::after { opacity: 1; }

.lab-banner h1 {
  margin: 0 0 1.1rem;
  color: var(--lab-fg);
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.1;
  max-width: 20ch;
}

.lab-subtitle {
  margin: 0;
  max-width: 56ch;
  color: var(--lab-fg-dim);
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  line-height: 1.5;
}

/* ─── Sections — unified rhythm ───────────────────────────────────────── */

.lab-section {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--lab-line);
}

.lab-section:last-child {
  border-bottom: none;
}

/* Diagonal hatch pattern — discreet texture on all lab sections */
.lab-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0,
    transparent 22px,
    rgba(244, 241, 234, 0.018) 22px,
    rgba(244, 241, 234, 0.018) 23px
  );
  pointer-events: none;
  z-index: 0;
}

/* Cursor spotlight on lab sections */
.lab-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    520px circle at var(--spot-x, 50%) var(--spot-y, 50%),
    rgba(245, 158, 11, 0.10),
    transparent 55%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 380ms ease;
  z-index: 0;
}

.lab-section.is-spotlit::after { opacity: 1; }

.lab-section > .foundation-container {
  position: relative;
  z-index: 1;
}

.lab-section h2 {
  margin: 0 0 1.1rem;
  color: var(--lab-fg);
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 2.8vw, 2.25rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.15;
}

/* Intro paragraph — readable serif lede */

.lab-section--intro .lab-intro {
  max-width: 64ch;
  margin: 0;
  color: var(--lab-fg);
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1.7vw, 1.4rem);
  font-style: italic;
  line-height: 1.55;
  padding-left: 1.4rem;
  border-left: 2px solid var(--lab-accent);
}

/* ─── Areas grid ──────────────────────────────────────────────────────── */

.lab-areas {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
  border-top: 1px solid var(--lab-line);
  border-left: 1px solid var(--lab-line);
}

.lab-area {
  position: relative;
  background: transparent;
  padding: clamp(1.5rem, 2.6vw, 2rem);
  border-right: 1px solid var(--lab-line);
  border-bottom: 1px solid var(--lab-line);
  transition: background-color 220ms ease;
}

.lab-area::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--lab-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 320ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.lab-area:hover {
  background: var(--lab-bg-elev);
}

.lab-area:hover::after {
  transform: scaleX(1);
}

.lab-area__icon {
  display: inline-flex;
  margin-bottom: 1rem;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--lab-line);
  border-radius: 4px;
  background: var(--lab-bg-soft);
  transition: border-color 220ms ease, background-color 220ms ease;
}

.lab-area__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--lab-fg-dim);
  stroke-width: 1.4;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 220ms ease;
}

.lab-area:hover .lab-area__icon {
  border-color: var(--lab-accent);
  background: var(--lab-accent-soft);
}

.lab-area:hover .lab-area__icon svg {
  stroke: var(--lab-accent);
}

.lab-area__number {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--lab-accent);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.2;
  text-transform: uppercase;
}

.lab-area h2 {
  margin: 0 0 0.55rem;
  color: var(--lab-fg);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
}

.lab-area p {
  margin: 0;
  color: var(--lab-fg-dim);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 52ch;
}

/* ─── Method / closing section ────────────────────────────────────────── */

.lab-section--method {
  background: var(--lab-bg-elev);
}

.lab-method {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.lab-method__heading h2 {
  margin: 0;
  max-width: 18ch;
}

.lab-method__body p {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  color: var(--lab-fg-dim);
  font-size: 1rem;
  line-height: 1.65;
}

/* ─── Buttons ─────────────────────────────────────────────────────────── */

.lab-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.4rem;
}

.lab-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--lab-line-strong);
  border-radius: 6px;
  padding: 0.6rem 1.1rem;
  background: transparent;
  color: var(--lab-fg);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.lab-button:hover,
.lab-button:focus-visible {
  background: rgba(244, 241, 234, 0.06);
  border-color: var(--lab-fg-dim);
  color: var(--lab-fg);
}

.lab-button--primary {
  background: var(--lab-accent);
  border-color: var(--lab-accent);
  color: #1a1a1a;
}

.lab-button--primary:hover,
.lab-button--primary:focus-visible {
  background: #ffb43e;
  border-color: #ffb43e;
  color: #1a1a1a;
}

/* ─── Work page list ──────────────────────────────────────────────────── */

.lab-work-section {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--lab-line);
}

.lab-work-section:last-of-type { border-bottom: none; }

.lab-work-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0,
    transparent 22px,
    rgba(244, 241, 234, 0.018) 22px,
    rgba(244, 241, 234, 0.018) 23px
  );
  pointer-events: none;
  z-index: 0;
}

.lab-work-section::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    520px circle at var(--spot-x, 50%) var(--spot-y, 50%),
    rgba(245, 158, 11, 0.10),
    transparent 55%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 380ms ease;
  z-index: 0;
}

.lab-work-section.is-spotlit::after { opacity: 1; }

.lab-work-section > .foundation-container {
  position: relative;
  z-index: 1;
}

.lab-work-heading {
  max-width: 720px;
  margin: 0 0 2rem;
}

.lab-work-heading h2 {
  margin: 0 0 0.55rem;
  color: var(--lab-fg);
  font-family: var(--font-heading);
  font-size: clamp(1.55rem, 2.5vw, 2rem);
  font-weight: 700;
  line-height: 1.18;
}

.lab-work-heading > p:last-of-type {
  margin: 0;
  color: var(--lab-fg-dim);
  font-size: 1rem;
  line-height: 1.6;
}

.lab-work-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--lab-line);
}

.lab-work-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--lab-line);
  align-items: start;
  transition: background-color 200ms ease;
}

.lab-work-item:hover {
  background: var(--lab-accent-soft);
}

.lab-work-item__meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--lab-accent);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
  padding-top: 0.2rem;
}

.lab-work-item__meta .lab-status {
  color: var(--lab-fg-soft);
}

.lab-work-item__body h3 {
  margin: 0 0 0.4rem;
  color: var(--lab-fg);
  font-family: var(--font-heading);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.3;
}

.lab-work-item__body p {
  max-width: 72ch;
  margin: 0 0 0.75rem;
  color: var(--lab-fg-dim);
  font-size: 0.96rem;
  line-height: 1.6;
}

.lab-work-item__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.lab-work-item__links .artifact-button {
  background: transparent !important;
  color: var(--lab-fg) !important;
  border-color: var(--lab-line-strong) !important;
}

.lab-work-item__links .artifact-button:hover {
  background: var(--lab-accent-soft) !important;
  border-color: var(--lab-accent) !important;
  color: var(--lab-accent) !important;
}

/* ─── Responsive ──────────────────────────────────────────────────────── */

@media (max-width: 840px) {
  .lab-areas { grid-template-columns: 1fr; }
  .lab-method { grid-template-columns: 1fr; gap: 1.2rem; }
  .lab-work-item { grid-template-columns: 1fr; gap: 0.4rem; }
  .lab-work-item__meta {
    flex-direction: row;
    flex-wrap: wrap;
    padding-top: 0;
  }
  .lab-banner { min-height: 360px; }
}