/* VizArchs — components: header, footer, buttons, page-hero, preloader,
   drawer, marquee, eyebrow, cards, filter pills, lightbox. Page-specific
   sections live in pages.css. */

/* ============= Buttons ============= */
.btn,
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0.875rem 1.5rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  line-height: 1;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--dur-base) var(--ease-out-quint),
    color var(--dur-base) var(--ease-out-quint),
    border-color var(--dur-base) var(--ease-out-quint);
}

.btn-primary {
  background: var(--green-primary);
  color: var(--text-on-green);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--green-hover);
}
.btn-primary .btn__arrow,
.btn-ghost   .btn__arrow {
  display: inline-block;
  transition: transform var(--dur-base) var(--ease-out-quint);
}
.btn-primary:hover .btn__arrow,
.btn-primary:focus-visible .btn__arrow,
.btn-ghost:hover .btn__arrow,
.btn-ghost:focus-visible .btn__arrow {
  transform: translateX(6px);
}

.btn-ghost {
  background: transparent;
  color: var(--green-primary);
  border-color: var(--green-primary);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--green-primary);
  color: var(--text-on-green);
}
.section--paper .btn-ghost,
[data-surface="paper"] .btn-ghost {
  color: var(--green-deep);
  border-color: var(--green-deep);
}
.section--paper .btn-ghost:hover,
.section--paper .btn-ghost:focus-visible,
[data-surface="paper"] .btn-ghost:hover,
[data-surface="paper"] .btn-ghost:focus-visible {
  background: var(--green-deep);
  color: var(--paper);
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  color: var(--green-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 500;
}
.btn-link .btn__arrow {
  display: inline-block;
  transition: transform var(--dur-base) var(--ease-out-quint);
}
.btn-link:hover .btn__arrow,
.btn-link:focus-visible .btn__arrow { transform: translateX(6px); }
.section--paper .btn-link,
[data-surface="paper"] .btn-link { color: var(--green-deep); }

/* ============= Header ============= */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-header);
  height: var(--header-h);
  display: flex;
  align-items: center;
  color: var(--text-on-dark);
  transition:
    background-color var(--dur-base) var(--ease-out-quint),
    backdrop-filter var(--dur-base) var(--ease-out-quint),
    border-color var(--dur-base) var(--ease-out-quint),
    height var(--dur-base) var(--ease-out-quint);
  border-bottom: 1px solid transparent;
}
/* Header is fully transparent over the hero/page-hero — readability
   comes from the dark-top overlay on the photo behind it.
   Once scrolled past the hero, the .is-stuck state gives it a solid bg. */
.site-header.is-stuck {
  background: rgba(15, 15, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--line-on-dark);
}

.site-header__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
}

.site-logo {
  display: inline-flex;
  align-items: center;
}
.site-logo img {
  width: auto;
  height: 28px;
  display: block;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  list-style: none;
  padding: 0;
  margin: 0;
}
.primary-nav__list a {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-on-dark);
  position: relative;
  padding-block: var(--sp-3);
  transition: color var(--dur-fast) var(--ease-out-quint);
}
.primary-nav__list a:hover,
.primary-nav__list a:focus-visible { color: var(--green-primary); }
.primary-nav__list a.is-active::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  height: 2px;
  background: var(--green-primary);
}

/* Work dropdown */
.nav-item--has-menu { position: relative; }
.nav-menu {
  position: absolute;
  inset-block-start: 100%;
  inset-inline-start: -1rem;
  min-width: 240px;
  background: var(--bg-elev-1);
  border: 1px solid var(--line-on-dark);
  padding: var(--sp-3);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition:
    opacity var(--dur-fast) var(--ease-out-quint),
    transform var(--dur-fast) var(--ease-out-quint),
    visibility 0s linear var(--dur-fast);
}
.nav-item--has-menu:hover > .nav-menu,
.nav-item--has-menu:focus-within > .nav-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0s;
}
.nav-menu a {
  padding: var(--sp-3) var(--sp-4);
  font-size: 0.9375rem;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
}
.nav-toggle__bar {
  position: absolute;
  inset-inline: 12px;
  height: 2px;
  background: var(--text-on-dark);
  transition:
    transform var(--dur-base) var(--ease-out-quint),
    opacity var(--dur-fast) var(--ease-out-quint),
    top var(--dur-base) var(--ease-out-quint);
}
.nav-toggle__bar:nth-child(1) { top: 14px; }
.nav-toggle__bar:nth-child(2) { top: 21px; }
.nav-toggle__bar:nth-child(3) { top: 28px; }

body.is-drawer-open .nav-toggle__bar:nth-child(1) { top: 21px; transform: rotate(45deg); }
body.is-drawer-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
body.is-drawer-open .nav-toggle__bar:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ============= Mobile drawer ============= */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: calc(var(--z-drawer) - 1);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--dur-base) var(--ease-out-quint),
    visibility 0s linear var(--dur-base);
}
body.is-drawer-open .drawer-backdrop {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}

.drawer {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  width: min(360px, 86vw);
  background: var(--bg-base);
  border-inline-start: 1px solid var(--line-on-dark);
  z-index: var(--z-drawer);
  padding: calc(var(--header-h-mobile) + var(--sp-6)) var(--sp-6) var(--sp-6);
  transform: translateX(100%);
  transition: transform var(--dur-base) var(--ease-out-quint);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  overflow-y: auto;
}
body.is-drawer-open .drawer { transform: translateX(0); }
.drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.drawer__list a {
  display: block;
  padding-block: var(--sp-4);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: var(--tracking-snug);
  color: var(--text-on-dark);
  border-bottom: 1px solid var(--line-on-dark);
}
.drawer__list a:hover,
.drawer__list a:focus-visible { color: var(--green-primary); }
.drawer__sub {
  list-style: none;
  padding: 0;
  margin: var(--sp-2) 0 var(--sp-3);
  padding-inline-start: var(--sp-4);
  border-inline-start: 1px solid var(--line-on-dark);
}
.drawer__sub a {
  font-size: 1rem;
  padding-block: var(--sp-3);
  border: 0;
  color: var(--text-muted-dark);
  text-transform: none;
  letter-spacing: 0;
}
.drawer__cta { margin-block-start: auto; }

@media (max-width: 900px) {
  .site-header { height: var(--header-h-mobile); }
  .site-logo img { height: 22px; }
  .primary-nav { display: none; }
  .nav-toggle { display: block; }
}

/* ============= Footer ============= */
.site-footer {
  background-color: var(--bg-base);
  background-image: var(--texture-noise);
  color: var(--text-on-dark);
  padding-block: var(--sp-12) var(--sp-6);
  border-top: 1px solid var(--line-on-dark);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-8);
}
.site-footer h4 {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--green-primary);
  margin-block-end: var(--sp-4);
}
.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.site-footer a { color: var(--text-on-dark); }
.site-footer a:hover,
.site-footer a:focus-visible { color: var(--green-primary); }
.site-footer__brand img {
  height: 24px;
  width: auto;
  margin-block-end: var(--sp-4);
}
.site-footer__tagline {
  color: var(--text-muted-dark);
  max-width: 32ch;
}
.site-footer__social {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}
.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid var(--line-on-dark);
  border-radius: var(--r-sm);
  transition: border-color var(--dur-fast) var(--ease-out-quint),
              color var(--dur-fast) var(--ease-out-quint);
}
.site-footer__social a:hover,
.site-footer__social a:focus-visible {
  border-color: var(--green-primary);
}
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-block-start: var(--sp-10);
  padding-block-start: var(--sp-5);
  border-top: 1px solid var(--line-on-dark);
  color: var(--text-muted-dark);
  font-size: var(--fs-small);
}
.site-footer__bottom-links {
  display: flex;
  gap: var(--sp-5);
}

@media (max-width: 900px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
  }
}

/* ============= Preloader ============= */
.preloader {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  background: var(--bg-base);
  display: grid;
  place-items: center;
}
.preloader__logo {
  position: relative;
  width: clamp(120px, 18vw, 200px);
  aspect-ratio: 3 / 1;
}
.preloader__logo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.preloader__logo-base {
  filter: grayscale(1) brightness(0.45);
}
.preloader__logo-fill {
  clip-path: inset(100% 0 0 0);
  transition: clip-path 1400ms var(--ease-out-quint);
}
.preloader.is-open .preloader__logo-fill { clip-path: inset(0 0 0 0); }
.preloader.is-fading {
  opacity: 0;
  transition: opacity 400ms var(--ease-out-quint);
}

body.is-loading { overflow: hidden; }
body.is-loaded .preloader { pointer-events: none; }

/* ============= Page hero — stacked media + caption band ============= */
.page-hero {
  display: flex;
  flex-direction: column;
}
.page-hero__media {
  position: relative;
  height: clamp(360px, 55vh, 620px);
  overflow: hidden;
  background: var(--bg-elev-1);
}
.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* Dark-from-top fade so the fixed header (transparent) reads against
   any photo. Stops well above the title band. */
.page-hero__media::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: calc(var(--header-h) + 96px);
  background: linear-gradient(to bottom,
    rgba(0, 0, 0, 0.92) 0%,
    rgba(0, 0, 0, 0.72) 35%,
    rgba(0, 0, 0, 0.45) 65%,
    rgba(0, 0, 0, 0.00) 100%);
  pointer-events: none;
  z-index: 1;
}
/* Bottom fade so the photo dissolves into the dark caption band
   instead of meeting it at a hard edge. Ends fully opaque bg-base
   well before the photo's bottom so the seam disappears. */
.page-hero__media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 55%;
  background: linear-gradient(to bottom,
    rgba(15, 15, 15, 0.00) 0%,
    rgba(15, 15, 15, 0.15) 15%,
    rgba(15, 15, 15, 0.45) 40%,
    rgba(15, 15, 15, 0.80) 65%,
    rgba(15, 15, 15, 1.00) 85%,
    rgba(15, 15, 15, 1.00) 100%);
  pointer-events: none;
  z-index: 1;
}
@media (max-width: 900px) {
  .page-hero__media::before { height: calc(var(--header-h-mobile) + 80px); }
}
.page-hero__caption {
  /* No local texture here — the photo's bottom fades to solid bg-base,
     and adding texture only on the caption would create a visible seam
     at the boundary. The global body grain still affects this surface. */
  background-color: var(--bg-base);
  color: var(--text-on-dark);
  padding-block: clamp(2.25rem, 4vw, 3.5rem);
}
.page-hero__caption .container {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}
.page-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-h1);
  line-height: var(--lh-display);
  letter-spacing: var(--tracking-tight);
  margin-block: var(--sp-3) 0;
  max-width: 22ch;
}
.page-hero__sub {
  font-size: var(--fs-body-lg);
  color: var(--text-muted-dark);
  max-width: 60ch;
  margin-block-start: var(--sp-2);
}
@media (max-width: 900px) {
  .page-hero__media { height: clamp(280px, 45vh, 460px); }
}

/* ============= Marquee ============= */
.marquee {
  background: var(--bg-base);
  color: var(--text-on-dark);
  padding-block: clamp(0.75rem, 2vw, 1.5rem);
  overflow: hidden;
  border-block: 1px solid var(--line-on-dark);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 30s linear infinite;
  gap: 1.75rem;
  white-space: nowrap;
}
.marquee--slow .marquee__track { animation-duration: 60s; }
.marquee__group {
  display: flex;
  gap: 1.75rem;
  flex-shrink: 0;
}
.marquee__item {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 2vw + 0.5rem, 2rem);
  letter-spacing: var(--tracking-snug);
}
.marquee__item:nth-child(2n) { color: var(--green-primary); }
.marquee__item::after {
  content: "·";
  margin-inline-start: 1.75rem;
  color: var(--text-muted-dark);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============= Filter pills (used on portfolio) ============= */
.filter-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 10;
  background: rgba(15,15,15,0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-block: 1px solid var(--line-on-dark);
  padding-block: var(--sp-4);
}
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  list-style: none;
  padding: 0;
  margin: 0;
}
.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-on-dark);
  background: transparent;
  border: 1px solid var(--line-on-dark);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-out-quint),
    color var(--dur-fast) var(--ease-out-quint),
    border-color var(--dur-fast) var(--ease-out-quint);
}
.filter-pill:hover { border-color: var(--green-deep); }
.filter-pill.is-active {
  background: var(--green-primary);
  color: var(--text-on-green);
  border-color: var(--green-primary);
}
.filter-pill__count {
  opacity: 0.7;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 900px) {
  .filter-bar { top: var(--header-h-mobile); }
}

/* ============= Portfolio tile / card — CSS-column masonry ============= */
.tile-grid {
  column-count: 3;
  column-gap: var(--sp-3);
  column-fill: balance;
}
@media (max-width: 900px) { .tile-grid { column-count: 2; } }
@media (max-width: 600px) { .tile-grid { column-count: 1; } }

.tile {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--bg-elev-1);
  cursor: zoom-in;
  isolation: isolate;
  break-inside: avoid;
  margin-block-end: var(--sp-3);
  width: 100%;
}
.tile__media {
  margin: 0;
  width: 100%;
  display: block;
  overflow: hidden;
  line-height: 0;
}
.tile__media img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--dur-slow) var(--ease-out-quint);
  transform-origin: center;
  will-change: transform;
}
.tile:hover .tile__media img,
.tile:focus-visible .tile__media img { transform: scale(1.08); }
.tile__caption {
  position: absolute;
  inset-inline: 0;
  inset-block-end: 0;
  padding: var(--sp-4) var(--sp-5);
  background: linear-gradient(to top, rgba(15,15,15,0.85) 0%, rgba(15,15,15,0) 100%);
  color: var(--text-on-dark);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  transform: translateY(40%);
  opacity: 0;
  transition:
    transform var(--dur-base) var(--ease-out-quint),
    opacity var(--dur-base) var(--ease-out-quint);
  pointer-events: none;
}
.tile:hover .tile__caption,
.tile:focus-visible .tile__caption {
  transform: none;
  opacity: 1;
}
.tile__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-body);
  letter-spacing: var(--tracking-snug);
}
.tile__tag {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--green-primary);
}

/* Filtered-out tiles are removed from the grid so cells reflow.
   Without display:none the grid keeps the empty slot. */
.tile.is-hidden { display: none; }

/* ============= Lightbox ============= */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-lightbox);
  background: rgba(15,15,15,0.96);
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 240ms var(--ease-out-quint),
    visibility 0s linear 240ms;
}
.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.lightbox__image {
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
  transform: scale(0.96);
  transition: transform 320ms var(--ease-out-quint);
}
.lightbox.is-open .lightbox__image { transform: scale(1); }
.lightbox__caption {
  position: absolute;
  inset-block-end: var(--sp-5);
  inset-inline: 0;
  text-align: center;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  color: var(--text-muted-dark);
  padding-inline: var(--sp-5);
}
.lightbox__counter {
  position: absolute;
  inset-block-start: var(--sp-5);
  inset-inline-start: var(--sp-6);
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--text-on-dark);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--tracking-wide);
}
.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: var(--text-on-dark);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line-on-dark);
  border-radius: var(--r-sm);
  font-size: 1.25rem;
  transition:
    background-color var(--dur-fast) var(--ease-out-quint),
    color var(--dur-fast) var(--ease-out-quint);
}
.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover { color: var(--green-primary); }
.lightbox__close { inset-block-start: var(--sp-5); inset-inline-end: var(--sp-6); }
.lightbox__prev  { inset-block-start: 50%; transform: translateY(-50%); inset-inline-start: var(--sp-6); }
.lightbox__next  { inset-block-start: 50%; transform: translateY(-50%); inset-inline-end: var(--sp-6); }