/* The Laing Label — Components
   Patterns reused across pages: nav, footer, buttons, cards, marks. */

/* --- Nav --- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--page-pad-x);
  background: rgba(243, 241, 236, 0.86);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: var(--hairline-paper);
}

.nav--dark {
  background: rgba(0, 0, 0, 0.78);
  border-bottom: var(--hairline-light);
  color: var(--white);
}

.nav__brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav__brand-mark {
  display: inline-block;
  transform: skewX(-10deg);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--charcoal);
  position: relative;
  padding: var(--space-2) 0;
}

.nav--dark .nav__link { color: rgba(255, 255, 255, 0.78); }
.nav--dark .nav__link:hover { color: var(--white); }

.nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: 0;
  height: 1px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-med) var(--ease-out);
}
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }

.nav__cta {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--charcoal);
  color: var(--charcoal);
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.nav--dark .nav__cta {
  border-color: rgba(255, 255, 255, 0.45);
  color: var(--white);
}
.nav__cta:hover {
  background: var(--charcoal);
  color: var(--paper);
}
.nav--dark .nav__cta:hover {
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}

.nav__toggle {
  display: none;
  width: 28px; height: 28px;
  position: relative;
}
.nav__toggle span,
.nav__toggle span::before,
.nav__toggle span::after {
  position: absolute;
  display: block;
  width: 22px; height: 1.5px;
  background: currentColor;
  transition: transform var(--dur-med) var(--ease-out);
}
.nav__toggle span { top: 50%; left: 3px; }
.nav__toggle span::before { content: ''; top: -7px; left: 0; }
.nav__toggle span::after  { content: ''; top:  7px; left: 0; }
.nav.is-open .nav__toggle span { background: transparent; }
.nav.is-open .nav__toggle span::before { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span::after  { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 800px) {
  /* A backdrop-filter ancestor becomes the containing block for position:fixed
     descendants — which traps the fixed menu inside the nav bar. Drop the blur
     on mobile (with a solid bg) so the menu can fill the viewport. */
  .nav {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--paper);
  }
  .nav--dark { background: var(--charcoal); }
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed;
    inset: 60px 0 0 0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-7) var(--page-pad-x);
    gap: var(--space-5);
    transform: translateY(-110%);
    transition: transform var(--dur-med) var(--ease-out);
    overflow-y: auto;
  }
  .nav--dark .nav__links { background: var(--charcoal); }
  .nav.is-open .nav__links { transform: none; }
  .nav__link { font-size: 18px; text-transform: uppercase; letter-spacing: -0.01em; font-family: var(--font-display); font-weight: 700; }
  .nav__cta { font-size: 13px; }
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: var(--space-4) var(--space-6);
  border: 1px solid currentColor;
  background: transparent;
  color: var(--charcoal);
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.btn:hover { background: var(--charcoal); color: var(--paper); }

.btn--reverse { color: var(--paper); border-color: rgba(255,255,255,0.7); }
.btn--reverse:hover { background: var(--paper); color: var(--charcoal); }

.btn--red { color: var(--paper); background: var(--red); border-color: var(--red); }
.btn--red:hover { background: var(--red-dark); border-color: var(--red-dark); color: var(--paper); }

.btn--ghost {
  border: 0;
  padding: var(--space-3) 0;
  position: relative;
  letter-spacing: 0.14em;
}
.btn--ghost::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
}
.btn--ghost:hover { background: transparent; color: var(--red); }
.btn--ghost:hover::after { background: var(--red); }

/* --- Project card --- */

.card-project {
  display: block;
  position: relative;
  color: inherit;
  isolation: isolate;
}

.card-project__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--gray);
  overflow: hidden;
}
.card-project__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out),
              filter var(--dur-slow) var(--ease-out);
  filter: grayscale(20%) contrast(1.05);
}
.card-project:hover .card-project__image img {
  transform: scale(1.04);
  filter: grayscale(0%) contrast(1.05);
}

.card-project__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-mid);
}

.card-project__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.4vw, 32px);
  letter-spacing: -0.02em;
  line-height: 1.05;
  text-transform: uppercase;
  margin-top: var(--space-2);
}

.card-project__desc {
  margin-top: var(--space-3);
  font-size: 14px;
  line-height: 1.6;
  color: var(--charcoal);
  max-width: 48ch;
}

.card-project__rule {
  display: block;
  width: 32px; height: 2px;
  background: var(--red);
  margin-top: var(--space-4);
  transition: width var(--dur-med) var(--ease-out);
}
.card-project:hover .card-project__rule { width: 80px; }

/* --- Outcome stat (large display number + mono label) --- */

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.stat__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 5vw, 72px);
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--charcoal);
}
.section--charcoal .stat__num,
.section--black .stat__num { color: var(--paper); }
.stat__label {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-mid);
}

/* --- Note card (essays index + footer preview) --- */

.note-card {
  display: block;
  border-top: var(--hairline-paper);
  padding: var(--space-6) 0;
  color: inherit;
  transition: padding var(--dur-med) var(--ease-out);
}
.section--charcoal .note-card,
.section--black .note-card { border-top: var(--hairline-light); }

.note-card__date {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-mid);
}
.note-card__title {
  margin-top: var(--space-3);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.2vw, 30px);
  letter-spacing: -0.015em;
  line-height: 1.1;
  text-transform: uppercase;
}
.note-card__excerpt {
  margin-top: var(--space-3);
  font-size: 14px;
  line-height: 1.65;
  color: var(--charcoal);
  max-width: 60ch;
}
.section--charcoal .note-card__excerpt,
.section--black .note-card__excerpt { color: rgba(243, 241, 236, 0.78); }
.note-card:hover .note-card__title { color: var(--red); }

/* --- Footer --- */

.footer {
  background: var(--black);
  color: var(--paper);
  padding: var(--space-9) var(--page-pad-x) var(--space-6);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-7);
  padding-bottom: var(--space-8);
  border-bottom: var(--hairline-light);
}

@media (max-width: 800px) {
  .footer__top { grid-template-columns: 1fr 1fr; }
}

.footer__brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 3.5vw, 44px);
  letter-spacing: -0.03em;
  line-height: 0.95;
  text-transform: uppercase;
}

.footer__tagline {
  margin-top: var(--space-4);
  font-family: var(--font-accent);
  font-size: 22px;
  color: var(--red);
  text-transform: lowercase;
}

.footer__col-title {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-4);
}

.footer__list a {
  display: block;
  padding: var(--space-2) 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.footer__list a:hover { color: var(--red); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 600px) {
  .footer__bottom { flex-direction: column; gap: var(--space-3); align-items: flex-start; }
}

/* --- Hero canvas (homepage particle field) --- */

.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
}

/* --- Marquee proof strip --- */

.proof {
  padding: var(--space-7) var(--page-pad-x);
  border-top: var(--hairline-paper);
  border-bottom: var(--hairline-paper);
  background: var(--paper);
}
.proof__label {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-bottom: var(--space-4);
}
.proof__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-7) var(--space-8);
  align-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(14px, 1.4vw, 18px);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gray-mid);
}
.proof__row span:hover { color: var(--charcoal); }

/* --- Breadcrumb --- */

.crumbs {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-mid);
  padding: var(--space-5) var(--page-pad-x);
  border-bottom: var(--hairline-paper);
}
.crumbs a:hover { color: var(--red); }
.crumbs__sep { padding: 0 var(--space-2); opacity: 0.4; }

/* --- Pull quote --- */

.pullquote {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 3.6vw, 52px);
  letter-spacing: -0.025em;
  line-height: 1.05;
  text-transform: uppercase;
  max-width: 22ch;
}

/* --- Tag / chip --- */

.chip {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray-mid);
}

/* --- Logo image marks (replace text marks) --- */
.nav__brand {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}
.nav__logo {
  display: block;
  height: 22px;
  width: auto;
}
/* Show the dark logo on light nav, white logo on dark nav */
.nav__logo--white { display: none; }
.nav--dark .nav__logo--dark { display: none; }
.nav--dark .nav__logo--white { display: block; }

.footer__brand {
  /* Reset text-mark sizing — image carries the visual weight */
  line-height: 1;
  font-size: 0;
  letter-spacing: 0;
}
.footer__brand img {
  display: block;
  height: clamp(36px, 4vw, 52px);
  width: auto;
}