/* ==========================================================================
   TPC — Components (shared by every template)
   ========================================================================== */

/* ---- Buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: .75rem;
  padding: 1rem 1.75rem;
  border: 1.5px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--f-display); font-weight: 600; font-size: 1rem; line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease), transform var(--dur-fast) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn svg { flex: none; transition: transform var(--dur) var(--ease-out); }
.btn:hover svg { transform: translateX(4px); }
.btn--primary { background: var(--red); color: var(--white); }
.btn--primary:hover { background: var(--red-deep); }
.btn--ghost { border-color: var(--navy); color: var(--navy); }
.btn--ghost:hover { background: var(--navy); color: var(--white); }
.btn--ghostLight { border-color: rgba(255,255,255,.5); color: var(--white); }
.btn--ghostLight:hover { background: var(--white); color: var(--navy); }
.btn--sm { padding: .75rem 1.2rem; font-size: .875rem; }
@media (max-width: 480px) { .btn { white-space: normal; line-height: 1.25; } }

.link-arrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--f-display); font-weight: 600; color: var(--red);
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1.5px no-repeat;
  transition: background-size var(--dur) var(--ease-out);
}
.link-arrow:hover { background-size: 100% 1.5px; }

/* ---- Tags and filters -------------------------------------------------- */
.tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.tags li {
  padding: .45rem .75rem;
  border: 1px solid var(--line);
  background: var(--white);
  font-family: var(--f-label); font-size: .75rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase; color: var(--navy);
}

.filters { display: flex; flex-wrap: wrap; gap: .5rem; }
.filter {
  padding: .7rem 1.2rem;
  border: 1px solid var(--line); border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--f-label); font-size: .78rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--steel);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.filter:hover { border-color: var(--navy); color: var(--navy); }
.filter[aria-pressed="true"] { background: var(--navy); border-color: var(--navy); color: var(--white); }

/* ==========================================================================
   Header — transparent over the hero, a solid floating pill once scrolled
   ========================================================================== */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 60;
  padding: calc(var(--inset) + 10px) calc(var(--inset) + 10px) 0;
  pointer-events: none;
}
.nav-pill {
  pointer-events: auto;
  display: flex; align-items: center; gap: 1.5rem;
  max-width: calc(var(--container) + 2 * var(--gutter) - 20px); margin-inline: auto;
  padding: .55rem .6rem .55rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-header.is-stuck .nav-pill {
  background: rgba(255,255,255,.94);
  -webkit-backdrop-filter: blur(14px) saturate(140%); backdrop-filter: blur(14px) saturate(140%);
  border-color: rgba(10,63,127,.08);
  box-shadow: var(--shadow-nav);
}

.brand { position: relative; display: block; height: 52px; width: 41px; flex: none; }
.brand__logo { position: absolute; inset: 0; width: 100%; height: 100%; transition: opacity var(--dur) var(--ease); }
.brand__logo--dark { opacity: 0; }
.site-header.is-stuck .brand__logo--light { opacity: 0; }
.site-header.is-stuck .brand__logo--dark { opacity: 1; }

.nav { display: flex; gap: .25rem; margin-inline: auto; }
.nav a {
  position: relative;
  padding: .6rem .9rem;
  font-family: var(--f-label); font-size: .8rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}
.nav a::after {
  content: ''; position: absolute; inset-inline: .9rem; bottom: .35rem; height: 2px;
  background: var(--red); transform: scaleX(0); transition: transform var(--dur) var(--ease-out);
}
.nav a:hover::after, .nav a.is-current::after { transform: scaleX(1); }
.site-header.is-stuck .nav a { color: var(--navy); }
.site-header:not(.is-stuck) { --focus-ring: var(--white); }

.nav-toggle {
  display: none; margin-inline-start: auto;
  width: 46px; height: 46px; align-items: center; justify-content: center;
  border: 0; border-radius: var(--radius-pill);
  background: var(--navy); color: var(--white); cursor: pointer;
}

/* Reading progress: a thin crimson line under the pill. */
.progress { position: fixed; inset: 0 0 auto; height: 3px; pointer-events: none; }
.progress span { display: block; height: 100%; background: var(--red); transform-origin: left; transform: scaleX(var(--p, 0)); }

@media (max-width: 1080px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { margin-inline-start: auto; }
  .nav-toggle { margin-inline-start: 0; }
}
@media (max-width: 560px) { .nav-cta { display: none; } .nav-toggle { margin-inline-start: auto; } }

/* ---- Mobile drawer: a modal dialog -------------------------------------- */
.drawer {
  position: fixed; inset: 0; z-index: 70;
  display: grid; align-content: center; gap: .25rem;
  padding: 6rem var(--gutter) 3rem;
  background: var(--ink);
  translate: 0 -100%; visibility: hidden;
  transition: translate var(--dur-slow) var(--ease-in-out), visibility 0s linear var(--dur-slow);
}
.drawer.is-open { translate: 0 0; visibility: visible; transition: translate var(--dur-slow) var(--ease-in-out), visibility 0s; }
.drawer a:not(.btn) {
  padding: .9rem 0; border-bottom: 1px solid var(--line-dark);
  font-family: var(--f-display); font-weight: 600; font-size: clamp(1.5rem, 6vw, 2.25rem); color: var(--white);
}
.drawer .btn { margin-top: 2rem; justify-self: start; }
.drawer__close {
  position: absolute; top: calc(var(--inset) + 14px); inset-inline-end: var(--gutter);
  width: 46px; height: 46px; display: grid; place-items: center;
  border: 0; border-radius: var(--radius-pill);
  background: rgba(255,255,255,.12); color: var(--white); cursor: pointer;
}

/* ==========================================================================
   Loader — the traced lockup draws itself while the Contour Line runs
   ========================================================================== */
.loader {
  position: fixed; inset: 0; z-index: 500;
  display: none; place-items: center;
  background: var(--ink); color: var(--white);
}
.js .loader { display: grid; }
.intro-seen .loader, .loader.is-gone { display: none; }
@media (prefers-reduced-motion: reduce) { .js .loader { display: none; } }

.loader.is-out { clip-path: inset(0 0 100% 0); transition: clip-path .95s var(--ease-in-out) .15s; }
.loader__inner {
  display: grid; justify-items: center; gap: 2.5rem;
  width: min(440px, 80vw);
  transition: opacity .5s var(--ease), transform .7s var(--ease-in-out);
}
.loader.is-out .loader__inner { opacity: 0; transform: translateY(-32px); }

.loader__logo { width: clamp(118px, 15vw, 160px); height: auto; overflow: visible; }
.lg__ink {
  fill: var(--white); fill-opacity: 0;
  stroke: var(--white); stroke-width: 1.1px; vector-effect: non-scaling-stroke;
  stroke-dasharray: 1; stroke-dashoffset: 1;
}
.lg--mark .lg__ink { animation: lg-draw 1.3s var(--ease-in-out) .15s forwards, lg-fill .55s var(--ease) 1.1s forwards; }
.lg--word .lg__ink { transform: translateY(90px); animation: lg-draw .8s var(--ease-in-out) .7s forwards, lg-fill .5s var(--ease) 1.25s forwards, lg-rise .9s var(--ease-out) .7s forwards; }
.lg--desc .lg__ink { stroke: none; animation: lg-fill .6s var(--ease) 1.5s forwards; }

.loader__signal { width: 100%; height: auto; overflow: visible; }
.loader__trace { fill: none; stroke: var(--signal); stroke-width: 1.41; stroke-dasharray: 1; stroke-dashoffset: 1; animation: lg-draw 1.25s var(--ease-in-out) .1s forwards; }
.loader__stems path {
  fill: none; stroke: var(--red); stroke-width: 1.06;
  transform-box: fill-box; transform-origin: 50% 100%; transform: scaleY(0);
  animation: stem-up .35s var(--ease-out) forwards; animation-delay: calc(.42s + var(--s) * .23s);
}
.loader__nodes circle {
  fill: var(--white);
  transform-box: fill-box; transform-origin: center; transform: scale(0);
  animation: node-pop .5s cubic-bezier(.34,1.56,.64,1) forwards; animation-delay: calc(.6s + var(--s) * .23s);
}
.loader__meta {
  display: flex; justify-content: space-between; width: 100%;
  font-family: var(--f-label); font-size: .72rem; font-weight: 600;
  letter-spacing: .2em; text-transform: uppercase; color: var(--t-on-dark-dim);
}
.loader__meta b { color: var(--white); font-weight: 600; font-variant-numeric: tabular-nums; }

@keyframes lg-draw  { to { stroke-dashoffset: 0; } }
@keyframes lg-fill  { to { fill-opacity: 1; stroke-opacity: 0; } }
@keyframes lg-rise  { to { transform: none; } }
@keyframes stem-up  { to { transform: scaleY(1); } }
@keyframes node-pop { to { transform: scale(1); } }

/* ==========================================================================
   The Contour Line — tiled band, with a travelling signal pulse
   ========================================================================== */
.contour-band {
  display: block; width: 100%; height: 56px; overflow: visible;
  fill: none; stroke: currentColor; stroke-width: 3.5;
}
.contour-band--pulse {
  position: absolute; inset: 0;
  color: var(--signal); stroke-width: 5;
  stroke-dasharray: 14 486;
  animation: pulse 9s linear infinite;
}
@keyframes pulse { from { stroke-dashoffset: 0; } to { stroke-dashoffset: -1000; } }

/* ---- Cards on Graphite ------------------------------------------------- */
.card-ink {
  display: grid; gap: 2.25rem; align-content: space-between;
  padding: 1.5rem 1.35rem 1.35rem;
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease-out);
}
.card-ink:hover { border-color: rgba(198,35,59,.6); transform: translateY(-4px); }
.card-ink svg { color: var(--red); }
.card-ink span {
  font-family: var(--f-label); font-size: .8rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; color: var(--t-on-dark);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  margin: 0 var(--inset) var(--inset);
  padding-block: clamp(3.5rem, 7vw, 5.5rem) 2rem;
  border-top: 3px solid var(--red);
}
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.2fr 1.4fr; gap: 2.5rem; }
.footer-brand img { width: 96px; height: auto; }
.footer-brand p { margin-top: 1.5rem; max-width: 30ch; color: var(--t-on-dark); }
.footer-col h2 {
  margin-bottom: 1.25rem;
  font-family: var(--f-label); font-size: .78rem; font-weight: 600;
  letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--t-on-dark-dim);
}
.footer-col ul { display: grid; gap: .7rem; }
.footer-col a:not(.btn), .footer-col li { color: var(--t-on-dark); }
.footer-col a:not(.btn) { transition: color var(--dur) var(--ease); }
.footer-col a:not(.btn):hover { color: var(--white); }
.footer-contact li { display: flex; gap: .75rem; align-items: flex-start; }
.footer-contact svg { flex: none; margin-top: .3rem; color: var(--t-on-dark-dim); }
.footer-col .btn { margin-top: 1.5rem; }
.footer-signal { margin-top: 3.5rem; color: rgba(255,255,255,.16); }
.footer-signal .contour-band { height: 44px; }
.footer-legal {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .75rem 2rem;
  margin-top: 1.75rem; padding-top: 1.5rem; border-top: 1px solid var(--line-dark);
  font-family: var(--f-label); font-size: .78rem; letter-spacing: .1em; color: var(--t-on-dark-dim);
}
@media (max-width: 960px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }