/*
  Shared components — spec §5 + docs/03-execution/05-PROTOTYPE-V1-DECISIONS.md §6/§8.
  Header markup/behavior is adapted from impeccable-prototype/ (the designated
  Header source), with the V1-mandated changes applied: no language switcher,
  no underline on hover/active nav (color change only), and the header is not
  permanently fixed — it hides on scroll-down and reveals on scroll-up
  (site.js). Everything else (hero, project card, footer, forms, etc.) is
  built from the approved tokens and the ui_kits/website composition.
*/

/* ===================== Header ===================== */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  color: var(--color-background);
  transform: translateY(0);
  transition:
    background-color var(--duration-base) var(--ease-entrance),
    border-color var(--duration-base) var(--ease-entrance),
    color var(--duration-base) var(--ease-entrance),
    transform var(--duration-base) var(--ease-standard);
}

/* Not grey by default (V1 Decisions §6 Header) — transparent at rest, background-token once scrolled. */
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--color-background) 92%, transparent);
  border-bottom-color: var(--color-border-divider);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: var(--color-primary-text);
}

/* Moves out of view on scroll-down, reveals on scroll-up (V1 Decisions §6 Header — not fixed permanently). */
.site-header.is-hidden { transform: translateY(-100%); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

/* Override .container bounds so the header perfectly aligns with full-width sections (like Featured Projects) */
.site-header__inner.container {
  max-width: 100%;
  width: 100%;
  padding-inline: var(--content-margin);
}

.site-header__logo-link { display: inline-flex; align-items: center; color: inherit; }

.logo-mark { display: inline-block; width: 132px; height: auto; flex-shrink: 0; transition: filter var(--duration-fast) var(--ease-standard), opacity var(--duration-fast) var(--ease-standard); }
.logo-mark--sm { width: 108px; }

/* Grey footer/scrolled logo (V1 Decisions §6 Color treatment) — the mark ships white-on-transparent;
   invert + blended opacity reads as ink-grey against a light surface without a second file. */
.is-scrolled .logo-mark,
.site-footer .logo-mark,
.mobile-nav .logo-mark {
  filter: invert(1);
  opacity: 0.55;
}

.site-header__nav { display: none; }

@media (min-width: 1280px) {
  .site-header__nav { display: flex; align-items: center; }
  .site-header__menu { display: flex; align-items: center; gap: var(--space-lg); }
}

.site-header__nav-link {
  display: inline-block;
  padding-block: var(--space-xs);
  font-size: var(--text-nav-link-size);
  letter-spacing: var(--text-nav-link-ls);
  font-weight: var(--font-weight-regular);
  color: currentColor;
  transition: color var(--duration-fast) var(--ease-standard);
}

/* Color change only — no underline (V1 Decisions §6 Header). */
.site-header__nav-link:hover { color: var(--color-primary-brand-hover); }
.site-header__nav-link[aria-current="page"] {
  color: var(--color-primary-brand);
  font-weight: var(--font-weight-medium);
}

.site-header__actions { display: flex; align-items: center; gap: var(--space-md); }

.site-header a.button.site-header__cta,
a.button.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: currentColor;
  min-height: 36px;
  width: 36px;
  padding: 0;
  border: none;
  border-radius: 999px;
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}

.site-header a.button.site-header__cta:hover,
a.button.site-header__cta:hover {
  background: color-mix(in srgb, currentColor 10%, transparent);
  color: currentColor;
}

.site-header a.button.site-header__cta span,
a.button.site-header__cta span {
  display: none;
}

.site-header a.button.site-header__cta svg,
a.button.site-header__cta svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

@media (max-width: 767px) {
  .site-header__inner {
    gap: 8px;
    align-items: center;
  }
  .site-header__logo-link {
    display: inline-flex;
    align-items: center;
    height: 36px;
  }
  .site-header__inner .logo-mark {
    width: 108px;
    height: auto;
    display: block;
  }
  .site-header__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 36px;
  }

  .site-header__menu-trigger {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .site-header__menu-trigger svg {
    width: 22px;
    height: 22px;
  }
}

@media (max-width: 767px) {
  .site-header__inner,
  .mobile-nav__top,
  .mobile-nav__list,
  .mobile-nav__footer {
    padding-inline: var(--content-margin);
  }
}


@media (min-width: 1280px) {
  .site-header a.button.site-header__cta,
  a.button.site-header__cta {
    min-height: 48px;
    width: auto;
    padding-inline: var(--space-md);
    gap: var(--space-xs);
    font-size: var(--text-button-size);
  }
  .site-header a.button.site-header__cta span,
  a.button.site-header__cta span {
    display: inline-block;
    line-height: 1;
    transform: translateY(1.5px);
  }
  .site-header a.button.site-header__cta:hover,
  a.button.site-header__cta:hover {
    background: color-mix(in srgb, currentColor 10%, transparent);
    color: currentColor;
  }
  .site-header a.button.site-header__cta svg,
  a.button.site-header__cta svg {
    width: 18px;
    height: 18px;
  }
}

.site-header__menu-trigger {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: currentColor;
  cursor: pointer;
}

@media (min-width: 1280px) {
  .site-header__menu-trigger { display: none; }
}

.site-header__menu-trigger svg { width: 24px; height: 24px; }

/* ===================== Mobile / tablet fullscreen nav ===================== */

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
  background: var(--color-background);
  color: var(--color-primary-text);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-16px);
  transition:
    opacity var(--duration-base) var(--ease-exit),
    transform var(--duration-base) var(--ease-exit),
    visibility 0s linear var(--duration-base);
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    opacity var(--duration-base) var(--ease-entrance),
    transform var(--duration-base) var(--ease-entrance),
    visibility 0s linear;
}

@media (min-width: 1280px) {
  .mobile-nav { display: none; }
}

.mobile-nav__top { display: flex; align-items: center; justify-content: space-between; height: var(--header-height); flex-shrink: 0; }
.mobile-nav__close { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border: none; background: none; color: var(--color-primary-text); cursor: pointer; }
.mobile-nav__close svg { width: 24px; height: 24px; }

.mobile-nav__nav { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.mobile-nav__list { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: var(--space-md); }
.mobile-nav__link { font-family: var(--font-page-title); font-size: var(--text-body-size); color: var(--color-primary-text); }
.mobile-nav__link[aria-current="page"] { color: var(--color-primary-brand); }

.mobile-nav__footer { display: flex; flex-direction: column; gap: var(--space-md); padding-top: var(--space-lg); border-top: 1px solid var(--color-border-divider); }
.mobile-nav__social { display: flex; gap: var(--space-md); justify-content: center; }
.mobile-nav__social a { color: var(--color-primary-text); }
.mobile-nav__social svg { width: 20px; height: 20px; }

body.mobile-nav-open { overflow: hidden; }

/* ===================== Buttons ===================== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 48px;
  padding-inline: var(--space-md);
  border: none;
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-body);
  font-size: var(--text-button-size);
  line-height: var(--text-button-lh);
  letter-spacing: var(--text-button-ls);
  font-weight: var(--text-button-weight);
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--duration-fast) var(--ease-standard),
    color var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    transform 120ms var(--ease-standard),
    filter 120ms var(--ease-standard);
}

.button:hover {
  background: color-mix(in srgb, currentColor 10%, transparent);
}

.button--large { min-height: 56px; padding-inline: var(--space-lg); }
.button--small { min-height: 40px; padding-inline: var(--space-sm); }

.button--primary { color: var(--color-secondary-brand); background: transparent; }

.button--secondary { color: var(--color-secondary-brand); background: transparent; }

.button--on-brand { color: var(--color-background); background: transparent; }

.button--text { color: var(--color-secondary-brand); background: transparent; }

.button:active { transform: scale(0.98); filter: brightness(0.96); }
.button[disabled] { opacity: 0.4; pointer-events: none; box-shadow: none; }

/* ===================== Hero ===================== */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  min-height: 50svh;
  padding-block: calc(var(--header-height) + 48px) 64px;
  padding-inline: 24px;
  color: var(--color-background);
  background: var(--color-primary-brand);
}

@media (min-width: 768px) {
  .hero { min-height: 60vh; padding-inline: 48px; }
}

@media (min-width: 1280px) {
  .hero { min-height: min(70vh, 760px); padding-inline: 8vw; }
}

.hero { align-items: flex-end; }

.hero__image,
.hero__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; pointer-events: none; }

.hero__overlay { position: absolute; inset: 0; pointer-events: none; }

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  opacity: 0;
  transform: translateY(32px);
  animation: hero-enter var(--duration-slow) var(--ease-entrance) 100ms forwards;
}

@keyframes hero-enter { to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .hero__content { animation: none; opacity: 1; transform: none; }
}

.hero .eyebrow { color: var(--color-background); opacity: 0.85; }
.hero h1 { color: var(--color-background); max-width: 850px; }
.hero--home h1 { font-size: var(--text-display-size); line-height: var(--text-display-lh); letter-spacing: var(--text-display-ls); }

.hero__subtitle {
  margin-top: var(--space-md);
  max-width: 55ch;
  font-size: var(--text-body-lg-size);
  line-height: var(--text-body-lg-lh);
  color: var(--color-background);
  opacity: 0.92;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-top: var(--space-lg); }

/* ===================== Hero — Dual Slider ===================== */
/* Two independently-looping wipe sliders, divided by a hairline, wipe left
   vertically and right horizontally by default. */

.dsh-hero {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: var(--color-primary-text); /* Grey brand color */
  display: flex;
}

.dsh-row {
  display: flex;
  flex-direction: row;
  width: 100%;
  height: 100%;
}

.dsh-side {
  position: relative;
  flex: 1;
  overflow: hidden;
  background: var(--color-primary-text);
}

.dsh-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: clip-path, transform, opacity;
}

.dsh-centerline {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(255, 255, 255, 0.15);
  z-index: 15;
}

@media (max-width: 860px) {
  .dsh-row { flex-direction: column; }
  .dsh-centerline {
    top: 50%;
    bottom: auto;
    left: 0;
    right: 0;
    width: auto;
    height: 1px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dsh-layer { transition: opacity 900ms ease !important; }
}

.dsh-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.dsh-scroll-line {
  width: 1px;
  height: 34px;
  background: rgba(255, 255, 255, 0.5);
  overflow: hidden;
  position: relative;
}

.dsh-scroll-line::after {
  content: "";
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: #fff;
  animation: dsh-scroll-drip 2600ms ease-in-out infinite;
}

@keyframes dsh-scroll-drip {
  0% { top: -100%; }
  50% { top: 0%; }
  100% { top: 100%; }
}

/* ===================== Project card ===================== */

.project-card {
  position: relative;
  display: block;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: var(--radius-md);
  color: var(--color-background);
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--duration-fast) var(--ease-standard);
}

.project-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: var(--color-primary-text);
  opacity: 0.5;
  transition: opacity var(--duration-fast) var(--ease-standard);
}

.project-card--no-overlay::after {
  display: none !important;
}

.project-card:hover::after,
.project-card:focus-visible::after {
  opacity: 0.2;
}

.project-card:hover img,
.project-card:focus-visible img {
  transform: scale(1.03);
}



/* Ensure positioning for overlay parents */
.section--tight [class^="span-"] {
  position: relative;
  display: block;
}

.project-card__content {
  position: absolute;
  z-index: 2;
  inset: auto var(--space-md) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-card__title { font-family: var(--font-body); font-size: var(--text-h3-size); font-weight: var(--text-h3-weight); color: var(--color-background); }
.project-card__meta { font-size: var(--text-body-sm-size); line-height: var(--text-body-sm-lh); color: var(--color-background); opacity: 0.9; max-width: 40ch; }

.project-grid {
  columns: 3;
  column-gap: var(--space-sm);
}

.project-grid .project-card {
  break-inside: avoid;
  margin-bottom: var(--space-sm);
}

/* 
  Calculated aspect ratios to ensure columns have the exact same total height 
  Col 1: 4/3 + 1 = 2.333
  Col 2 & 3: 2/3 + 5/3 = 2.333
*/
.project-grid .project-card:nth-child(1) { aspect-ratio: 3 / 4; } /* Tall */
.project-grid .project-card:nth-child(2) { aspect-ratio: 1 / 1; } /* Square */
.project-grid .project-card:nth-child(3) { aspect-ratio: 3 / 2; } /* Landscape */
.project-grid .project-card:nth-child(4) { aspect-ratio: 3 / 5; } /* Extra Tall */
.project-grid .project-card:nth-child(5) { aspect-ratio: 3 / 2; } /* Landscape */
.project-grid .project-card:nth-child(6) { aspect-ratio: 3 / 5; } /* Extra Tall */

.project-grid .project-card img {
  height: 100%;
  display: block;
}

@media (max-width: 1279px) {
  .project-grid {
    columns: 2;
  }
}

@media (max-width: 767px) {
  .project-grid {
    columns: 2;
    column-gap: var(--space-sm);
  }
  .project-grid .project-card {
    margin-bottom: var(--space-sm);
  }
  
  /* 
    Calculate aspect ratios for mobile (2 columns) to ensure flush bottoms
    Col 1 (Items 1, 2, 3): 1.25 + 1.0 + 1.25 = 3.5
    Col 2 (Items 4, 5, 6): 1.0 + 1.5 + 1.0 = 3.5
  */
  .project-grid .project-card:nth-child(1) { aspect-ratio: 4 / 5; }
  .project-grid .project-card:nth-child(2) { aspect-ratio: 1 / 1; }
  .project-grid .project-card:nth-child(3) { aspect-ratio: 4 / 5; }
  .project-grid .project-card:nth-child(4) { aspect-ratio: 1 / 1; }
  .project-grid .project-card:nth-child(5) { aspect-ratio: 2 / 3; }
  .project-grid .project-card:nth-child(6) { aspect-ratio: 1 / 1; }

  .project-grid .project-card__content {
    inset: auto var(--space-sm) var(--space-sm);
    gap: var(--space-xxs);
  }
  .project-grid .project-card__title {
    font-size: var(--text-body-sm-size);
  }
  .project-grid .project-card__meta {
    font-size: var(--text-caption-size);
  }
}

/* ===================== Project Information Vertical ===================== */
.project-info-vertical { 
  display: flex; 
  flex-direction: column; 
  gap: var(--space-3xl); 
  align-items: center; 
}
.project-info-vertical__header { 
  text-align: center; 
  max-width: 800px; 
}
.project-info-vertical__header .eyebrow { 
  margin-bottom: var(--space-md); 
  display: block; 
}
.project-info-vertical__header .intro-copy { 
  margin-bottom: 0; 
  max-width: 65ch; 
  margin-left: auto; 
  margin-right: auto; 
}
.project-info-vertical__media { 
  width: 100%; 
}
@media (min-width: 900px) {
  .project-info-vertical__media { 
    width: 60%; 
  }
}
.project-info-vertical__media img { 
  width: 100%; 
  height: auto; 
  max-height: 80vh; 
  object-fit: cover; 
  border-radius: var(--radius-lg); 
}
.project-info-vertical__footer { 
  width: 100%; 
  max-width: 1000px; 
}
@media (min-width: 900px) {
  .project-info-vertical__footer { 
    width: 60%; 
  }
}

/* ===================== Quote / testimonial carousel ===================== */

.quote-carousel { 
  display: grid; 
  grid-template-areas: 
    "track track track"
    "prev . next";
  grid-template-columns: auto 1fr auto; 
  align-items: center; 
  gap: var(--space-md); 
  max-width: 900px; 
  margin-inline: auto; 
}
.quote-carousel__track { 
  grid-area: track;
  position: relative; 
  display: grid; 
  align-items: center; 
  justify-items: center; 
}
.quote-carousel__slide {
  grid-area: 1 / 1;
  text-align: center;
  font-family: var(--font-page-title);
  font-size: calc(var(--text-h3-size) * 0.8);
  line-height: 2;
  letter-spacing: 2px;
  color: var(--color-primary-text);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.quote-carousel__slide.is-active { 
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.quote-carousel__slide cite { display: block; margin-top: var(--space-md); font-family: var(--font-body); font-style: normal; font-size: var(--text-body-sm-size); color: var(--color-primary-text); opacity: 0.7; }

.quote-carousel__arrow[data-carousel-prev] { grid-area: prev; }
.quote-carousel__arrow[data-carousel-next] { grid-area: next; }
.quote-carousel__arrow {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-primary-text);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}
.quote-carousel__arrow:hover { border-color: var(--color-primary-text); color: var(--color-primary-text-active); }
.quote-carousel__arrow svg { width: 18px; height: 18px; }

.quote-carousel__dots { display: flex; justify-content: center; gap: var(--space-xs); margin-top: var(--space-lg); margin-bottom: var(--space-4xl); }
.quote-carousel__dot { width: 8px; height: 8px; padding: 0; border: none; border-radius: var(--radius-full); background: var(--color-border-default); cursor: pointer; }
.quote-carousel__dot.is-active { background: var(--color-primary-brand); }

@media (max-width: 767px) {
  .quote-carousel { display: block; }
  .quote-carousel__arrow { display: none; }
  .quote-carousel__dot { width: 12px; height: 12px; }
  .quote-carousel__slide {
    font-size: var(--text-body-size);
  }
}
@media (min-width: 768px) {
  .quote-carousel { 
    grid-template-areas: "prev track next";
    gap: var(--space-xs); 
  }
}



/* ===================== CTA section ===================== */

.cta {
  position: relative;
  text-align: center;
  background-image: url('../images/projects-hero.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: var(--color-background);
  min-height: 400px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 1;
  padding: var(--space-4xl) var(--content-margin) !important;
}

.section--brand.cta {
  background-color: transparent;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-color: var(--color-primary-text);
  opacity: 0.7;
  z-index: 0;
  pointer-events: none;
}

.cta > * {
  position: relative;
  z-index: 1;
}

.cta h2 {
  font-family: var(--font-page-title);
  font-size: clamp(0.95rem, 2.4vw, 2.28rem);
  font-weight: var(--font-weight-regular);
  color: #ffffff !important;
  margin-bottom: var(--space-xl);
  line-height: 1.1;
  white-space: nowrap;
  max-width: 100%;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.cta .button--on-brand {
  min-height: 60px;
  padding-inline: var(--space-2xl);
  font-size: var(--text-body-lg-size);
  letter-spacing: 0.05em;
  background: transparent;
  color: #ffffff;
  transition: all var(--duration-base) var(--ease-standard);
}

.cta .button--on-brand:hover {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

@media (max-width: 767px) {
  .cta {
    min-height: 260px;
  }
}

/* ===================== Footer ===================== */

.site-footer {
  padding: var(--space-3xl) var(--content-margin) 0;
  background: var(--color-background);
  color: var(--color-primary-text);
  border-top: 1px solid var(--color-border-divider);
}

/* Override .container bounds so the footer perfectly aligns with full-width sections */
.site-footer .container {
  max-width: 100%;
  width: 100%;
}

@media (min-width: 768px) {
  .site-footer { padding-top: 56px; padding-bottom: 0; }
}

@media (min-width: 1280px) {
  .site-footer { padding-top: 68px; padding-bottom: 0; }
}

.site-footer__grid { display: grid; grid-template-columns: 1fr; gap: var(--space-2xl); text-align: center; }

@media (min-width: 768px) {
  .site-footer__grid { grid-template-columns: repeat(2, 1fr); text-align: left; }
}

@media (min-width: 1280px) {
  .site-footer__grid { grid-template-columns: 2fr repeat(3, 1fr); }
}

.site-footer__brand { display: flex; flex-direction: column; align-items: center; gap: var(--space-md); }

@media (min-width: 768px) {
  .site-footer__brand { align-items: flex-start; }
}

.site-footer__statement { max-width: 32ch; font-size: var(--text-body-sm-size); line-height: var(--text-body-sm-lh); margin-inline: auto; }

@media (min-width: 768px) {
  .site-footer__statement { margin-inline: 0; }
}

.site-footer h2 {
  font-family: var(--font-body);
  font-size: var(--text-caption-size);
  letter-spacing: var(--text-caption-ls);
  font-weight: var(--text-caption-weight);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  color: var(--color-primary-text);
  opacity: 0.7;
}

.site-footer ul { 
  display: flex; 
  flex-direction: column; 
  gap: var(--space-sm); 
  align-items: center; 
  font-size: var(--text-body-sm-size);
}

@media (min-width: 768px) {
  .site-footer ul { align-items: flex-start; }
}

.site-footer a { transition: color var(--duration-fast) var(--ease-standard); }
.site-footer a:hover { color: var(--color-secondary-brand-hover); }

.site-footer .social-list a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  justify-content: center;
}

.site-footer .social-list svg {
  width: 18px;
  height: 18px;
  opacity: 0.8;
}

@media (min-width: 768px) {
  .site-footer .social-list a { justify-content: flex-start; }
}

.site-footer__social { flex-direction: row; justify-content: center; gap: var(--space-md); }

@media (min-width: 768px) {
  .site-footer__social { justify-content: flex-start; }
}

.site-footer__social a { display: inline-flex; opacity: 0.8; }
.site-footer__social a:hover { opacity: 1; }
.site-footer__social svg { width: 20px; height: 20px; }

.site-footer__legal {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
  padding: var(--space-sm) 0;
  min-height: 36px;
  border-top: 1px solid var(--color-border-divider);
  font-size: var(--text-body-sm-size);
  text-align: center;
}

@media (min-width: 768px) {
  .site-footer__legal { flex-direction: row; justify-content: space-between; text-align: left; }
}

.site-footer__legal nav { display: flex; gap: var(--space-md); }
.site-footer__legal a[aria-disabled="true"] { cursor: default; opacity: 0.6; }

@media (max-width: 767px) {
  .site-footer__legal {
    flex-direction: column-reverse;
    gap: var(--space-sm);
  }
  .site-footer__legal a,
  .site-footer__legal a[aria-disabled="true"],
  .site-footer__legal span {
    opacity: 0.6;
  }
}

/* ===================== Social rail ===================== */
/* Tablet+ only — on mobile the same links live inside the mobile-nav overlay,
   avoiding a floating element competing with the section-nav bar on small screens
   (V1 Decisions: "exact mobile treatment... may be refined during implementation"). */

.social-rail {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: none;
  flex-direction: column;
  gap: var(--space-sm);
  color: var(--color-primary-text);
}

@media (min-width: 768px) {
  .social-rail { display: flex; }
}

.social-rail a {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: inherit;
  opacity: 0.75;
  transition: opacity var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}
.social-rail a:hover { opacity: 1; color: var(--color-secondary-brand); }
.social-rail svg { width: 20px; height: 20px; }

/* ===================== In-page section navigation ===================== */
/* Distinct from the main Header nav — navigates within the current page only. */

.section-nav {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(16px);
  z-index: 50;
  max-width: min(calc(100% - 32px), 720px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: color-mix(in srgb, var(--color-primary-text) 80%, transparent);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  box-shadow: var(--shadow-high);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--duration-base) var(--ease-standard),
    visibility var(--duration-base) var(--ease-standard),
    transform var(--duration-base) var(--ease-standard);
}

.section-nav.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.section-nav ul { display: flex; min-width: max-content; gap: 2px; padding: 4px; }

.section-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: var(--text-body-sm-size);
  color: var(--color-background);
  opacity: 0.75;
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-standard);
}
.section-nav a:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-background);
}
.section-nav a[aria-current="location"] {
  opacity: 1;
  background: var(--color-background);
  color: var(--color-primary-text);
}

@media (max-width: 767px) {
  .section-nav {
    bottom: var(--space-md);
    max-width: calc(100% - (var(--content-margin) * 2));
  }
  .section-nav ul {
    gap: var(--space-xxs);
    padding: var(--space-xxs);
  }
  .section-nav a {
    padding: var(--space-sm);
    font-size: var(--text-caption-size);
  }
}

/* ===================== Back to top ===================== */
/* Desktop-only: at tablet/mobile widths the section-nav bar spans nearly the full
   viewport width, so a second bottom-fixed control would collide with it. */

.back-to-top {
  position: fixed;
  right: 32px;
  bottom: 32px;
  z-index: 45;
  display: none;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-full);
  background: var(--color-background);
  color: var(--color-primary-text);
  box-shadow: var(--shadow-low);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-fast) var(--ease-standard), visibility var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}

@media (min-width: 1280px) {
  .back-to-top { display: flex; }
}

.back-to-top.is-visible { opacity: 1; visibility: visible; }
.back-to-top:hover { border-color: var(--color-primary-text); color: var(--color-primary-text-active); }
.back-to-top svg { width: 20px; height: 20px; }

/* ===================== Project metadata ===================== */

.metadata { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); padding-top: var(--space-md); border-top: 1px solid var(--color-border-divider); }
.metadata dt { font-size: var(--text-caption-size); letter-spacing: var(--text-caption-ls); text-transform: uppercase; color: var(--color-primary-text); opacity: 0.7; }
.metadata dd { margin-top: var(--space-xs); font-size: var(--text-body-size); color: var(--color-primary-text); }

@media (max-width: 767px) {
  .metadata { grid-template-columns: repeat(2, 1fr); }
}

/* ===================== Gallery Masonry ===================== */
.masonry-grid {
  column-count: 3;
  column-gap: var(--space-md);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

/* Aspect ratio classes for artistic perfectly-flush masonry */
.ar-1-1 { aspect-ratio: 1 / 1 !important; }
.ar-4-5 { aspect-ratio: 4 / 5 !important; }
.ar-4-3 { aspect-ratio: 4 / 3 !important; }

/* ===================== Process Card ===================== */
.process-card {
  display: flex;
  align-items: flex-end;
  gap: var(--space-xs);
}

.process-card__media {
  width: 55%;
  aspect-ratio: 1 / 1.8;
  object-fit: cover;
}

.process-card__content {
  width: 45%;
}

.process-card__title,
#process .process-card__title {
  font-family: "Amandine", var(--font-process-title, var(--font-page-title)) !important;
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: var(--space-md);
  line-height: 1.35;
  word-wrap: break-word;
}

@media (max-width: 767px) {
  .process-card__title br {
    display: none;
  }
}

.process-card__desc {
  font-size: var(--text-caption-size);
  line-height: 1.5;
  color: var(--color-primary-text);
  opacity: 0.7;
}

@media (max-width: 767px) {
  .process-card {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }
  .process-card__media {
    width: 100%;
    aspect-ratio: 4 / 5;
  }
  .process-card__content {
    width: 100%;
  }
}

.masonry-item img {
  width: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.8s var(--ease-standard), filter 0.8s var(--ease-standard);
  filter: brightness(0.9);
}

.masonry-item:hover img {
  transform: scale(1.05);
  filter: brightness(1);
}

@media (max-width: 1023px) {
  .masonry-grid {
    column-count: 2;
  }
}

@media (max-width: 767px) {
  .masonry-grid {
    column-count: 2;
    column-gap: var(--space-sm);
  }
  .masonry-item {
    margin-bottom: var(--space-sm);
  }
  .masonry-item:nth-child(15) {
    column-span: all;
    aspect-ratio: 16 / 9 !important;
  }
  .masonry-item .project-card__content {
    inset: auto var(--space-sm) var(--space-sm);
    gap: var(--space-xxs);
  }
  .masonry-item .project-card__title {
    font-size: var(--text-body-sm-size);
  }
  .masonry-item .project-card__meta {
    font-size: var(--text-caption-size);
  }
}

/* ===================== Intro Statement ===================== */

.intro-statement {
  font-family: var(--font-page-title);
  font-size: calc(var(--text-h3-size) * 0.8);
  line-height: 2;
  letter-spacing: 2px;
  color: var(--color-primary-text);
}

@media (max-width: 767px) {
  .intro-statement {
    font-family: var(--font-body);
    font-size: var(--text-body-size);
    line-height: var(--text-body-lh);
    letter-spacing: normal;
  }
}

/* ===================== Careers: job list + modal ===================== */

.job-list { max-width: 900px; margin-inline: auto; }
.job { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); padding: var(--space-md) 0; border-top: 1px solid var(--color-border-divider); }
.job:first-child { border-top: none; }
.job__meta { margin-top: var(--space-xxs); font-size: var(--text-body-sm-size); color: var(--color-primary-text); }
.job__status { display: inline-block; margin-left: var(--space-xs); padding: 2px var(--space-xs); border-radius: var(--radius-full); font-size: var(--text-caption-size); }
.job__status--open { background: color-mix(in srgb, var(--color-success) 16%, transparent); color: var(--color-success); }
.job__status--closed { background: color-mix(in srgb, var(--color-primary-text) 14%, transparent); color: var(--color-primary-text); }

@media (max-width: 767px) {
  .job { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
}

.job-modal { position: fixed; inset: 0; z-index: 300; display: none; align-items: center; justify-content: center; padding: var(--space-md); }
.job-modal.is-open { display: flex; }
.job-modal__backdrop { position: absolute; inset: 0; background: var(--overlay-modal-backdrop); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.job-modal__panel {
  position: relative;
  width: 720px;
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  background: var(--color-background);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-high);
  transform: scale(0.96);
  opacity: 0;
  transition: transform var(--duration-fast) var(--ease-entrance), opacity var(--duration-fast) var(--ease-entrance);
}
.job-modal__panel::-webkit-scrollbar {
  display: none;
}
.job-modal.is-open .job-modal__panel { transform: scale(1); opacity: 1; }

.job-modal__head { position: sticky; top: 0; display: flex; align-items: center; justify-content: space-between; padding: var(--space-md) var(--space-xl); background: var(--color-background); border-bottom: 1px solid var(--color-border-divider); }
.job-modal__close { width: 32px; height: 32px; display: grid; place-items: center; color: var(--color-primary-text); cursor: pointer; background: transparent; border: none; }
.job-modal__close svg { width: 20px; height: 20px; }
.job-modal__body { padding: var(--space-lg); }
.job-modal__body h4 { margin-top: var(--space-md); margin-bottom: var(--space-xs); }
.job-modal__body p { margin-bottom: var(--space-sm); }
.job-modal__body .form { margin-top: var(--space-md); }

@media (max-width: 767px) {
  .job-modal { padding: 0; }
  .job-modal__panel { width: 100vw; max-width: 100vw; height: 100dvh; max-height: 100dvh; border-radius: 0; }
}

/* ===================== Forms ===================== */

.form { display: grid; gap: var(--space-md); }
.form__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
.field { display: grid; gap: var(--space-xs); }
.field label { font-size: var(--text-form-label-size); font-weight: var(--text-form-label-weight); color: var(--color-primary-text); }
.field .required { color: var(--color-error); margin-left: 2px; }

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 56px;
  padding-inline: var(--space-sm);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
  background: var(--color-background);
  color: var(--color-primary-text);
  font-family: var(--font-body);
  font-size: var(--text-body-size);
}

.field textarea { min-height: 160px; padding-block: var(--space-sm); resize: vertical; }
.field input:focus-visible,
.field textarea:focus-visible,
.field select:focus-visible { outline: 2px solid var(--color-secondary-brand); outline-offset: 2px; }

.field--full { grid-column: 1 / -1; }

.field__upload {
  display: block;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  text-align: center;
  font-size: var(--text-body-sm-size);
  color: var(--color-primary-text);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-standard);
}
.field__upload:hover { border-color: var(--color-primary-text); }
.field__upload input[type="file"] { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.form__status { font-size: var(--text-body-sm-size); color: var(--color-success); }
.form__status[data-state="error"] { color: var(--color-error); }

@media (max-width: 767px) {
  .form__grid { grid-template-columns: 1fr; }
  .field--full { grid-column: auto; }
}

/* ===================== Contact page ===================== */

.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-4xl); }
.contact-details { display: grid; gap: var(--space-lg); align-content: start; }
.contact-details h3 { font-family: var(--font-body); font-size: var(--text-caption-size); letter-spacing: var(--text-caption-ls); text-transform: uppercase; margin-bottom: var(--space-xs); color: var(--color-primary-text); opacity: 0.7; }
.contact-details a { color: var(--color-primary-text); transition: color var(--duration-fast) var(--ease-standard); }
.contact-details a:hover { color: var(--color-secondary-brand); }

@media (max-width: 1279px) {
  .contact-grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
}