:root {
  --blue-950: #071733;
  --blue-900: #102a56;
  --blue-700: #174a8b;
  --blue-100: #eaf1fb;
  --red-700: #bb1f2d;
  --red-600: #d52b3a;
  --white: #ffffff;
  --ink: #172033;
  --muted: #5c677d;
  --line: #d8deea;
  --surface: #f7f9fc;
  --shadow: 0 18px 50px rgba(7, 23, 51, 0.14);
  --radius: 8px;
  --header-height: 82px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(213, 43, 58, 0.5);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-150%);
  background: var(--white);
  color: var(--blue-900);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 50;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 24px;
  padding: 12px clamp(18px, 4vw, 56px);
  color: var(--white);
  background: linear-gradient(180deg, rgba(7, 23, 51, 0.82), rgba(7, 23, 51, 0.25));
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand span {
  max-width: min(430px, 42vw);
}

.brand img,
.footer-brand img {
  width: 44px;
  height: 60px;
  border-radius: 6px;
  object-fit: contain;
}

.brand strong,
.footer-brand span {
  display: block;
  font-size: 1rem;
  letter-spacing: 0;
}

.brand small {
  display: block;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.78rem;
  line-height: 1.25;
  margin-top: -2px;
}

.hero {
  position: relative;
  min-height: 96svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 150px clamp(20px, 6vw, 80px) 90px;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("assets/Monument_1st_armoured_polish_division_Normandy_Dday.jpg");
  background-size: cover;
  background-position: center 32%;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 23, 51, 0.9), rgba(7, 23, 51, 0.58) 46%, rgba(187, 31, 45, 0.18)),
    linear-gradient(0deg, rgba(7, 23, 51, 0.82), transparent 46%);
}

.hero-content {
  position: relative;
  max-width: 1080px;
  color: var(--white);
}

.kicker {
  margin: 0 0 12px;
  color: var(--red-600);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-dark .kicker,
.hero .kicker {
  color: #ffccd2;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  max-width: 980px;
  font-size: clamp(2.15rem, 5.2vw, 5.7rem);
  font-weight: 900;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 4rem);
  font-weight: 900;
  color: var(--blue-950);
}

h3 {
  font-size: 1.18rem;
}

.hero-subtitle {
  max-width: 760px;
  margin: 24px 0 0;
  font-size: clamp(1.08rem, 2vw, 1.45rem);
  color: rgba(255, 255, 255, 0.88);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 850;
  line-height: 1.2;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: var(--red-700);
  box-shadow: 0 14px 34px rgba(187, 31, 45, 0.24);
}

.button-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.46);
  background: rgba(255, 255, 255, 0.08);
}

.button-light {
  color: var(--blue-900);
  background: var(--white);
}

.button-outline {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

.hero-actions,
.support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.section {
  padding: clamp(72px, 10vw, 132px) clamp(20px, 5vw, 72px);
}

.section-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}

.section-heading p:not(.kicker) {
  max-width: 720px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.centered {
  text-align: center;
}

.text-panel {
  padding-left: clamp(20px, 4vw, 52px);
  border-left: 4px solid var(--red-600);
  color: var(--muted);
  font-size: 1.08rem;
}

.history-section {
  background:
    linear-gradient(180deg, var(--surface), var(--white));
}

.history-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(34px, 6vw, 72px);
  align-items: center;
  margin-top: 56px;
}

.history-photo {
  margin: 0;
}

.history-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.timeline {
  position: relative;
  display: grid;
  gap: 20px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(var(--blue-700), var(--red-600));
}

.timeline-item {
  position: relative;
  padding: 0 0 0 50px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 5px;
  width: 20px;
  height: 20px;
  border: 4px solid var(--white);
  border-radius: 50%;
  background: var(--red-600);
  box-shadow: 0 0 0 2px var(--red-600);
}

.timeline-year {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--blue-700);
  font-weight: 900;
}

.timeline-item p,
.activity-card p,
.person-card p {
  color: var(--muted);
}

.card-grid,
.board-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.activity-card,
.person-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 28px rgba(7, 23, 51, 0.06);
}

.activity-card {
  min-height: 218px;
  padding: 26px;
}

.card-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue-900);
  font-weight: 900;
  font-size: 0.82rem;
}

.board-section {
  background: var(--surface);
}

.person-card {
  padding: 24px;
  text-align: center;
}

.avatar {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  margin: 0 auto 18px;
  border-radius: 50%;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(23, 74, 139, 0.98), rgba(187, 31, 45, 0.92)),
    var(--blue-900);
  font-weight: 900;
  font-size: 1.2rem;
}

.person-card p {
  min-height: 48px;
  margin: 0 0 10px;
  font-size: 0.92rem;
}

.board-photo {
  margin: 42px 0 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 28px rgba(7, 23, 51, 0.06);
}

.board-photo img {
  width: 100%;
  max-height: 720px;
  object-fit: cover;
  border-radius: var(--radius);
}

.board-photo figcaption {
  margin: 16px 4px 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

.gallery-section {
  background:
    linear-gradient(180deg, rgba(7, 23, 51, 0.93), rgba(16, 42, 86, 0.94)),
    url("assets/Cimetière_polonais_de_Langannerie.jpg") center / cover fixed;
}

.section-dark h2,
.section-dark .section-heading p:not(.kicker) {
  color: var(--white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 230px;
  gap: 14px;
  margin-top: 42px;
}

.gallery-item {
  position: relative;
  margin: 0;
  min-height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--blue-900);
}

.gallery-item.large {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-item.portrait img {
  object-fit: contain;
  padding: 28px;
  background: var(--white);
}

.gallery-item img,
.image-backed::before {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-backed::before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.72;
}

.montormel::before {
  background-image: url("assets/Monument_1st_armoured_polish_division_Normandy_Dday.jpg");
}

.gallery-item figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 1;
  margin: 0;
  color: var(--white);
  font-weight: 850;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
}

.gallery-item::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  background: linear-gradient(0deg, rgba(7, 23, 51, 0.75), transparent);
}

.polycam-section {
  background: var(--surface);
}

.polycam-frame {
  width: min(1280px, 100%);
  height: min(70vh, 720px);
  min-height: 420px;
  margin: 42px auto 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--blue-950);
  box-shadow: var(--shadow);
}

.polycam-frame model-viewer {
  display: block;
  width: 100%;
  height: 100%;
  min-width: 280px;
  min-height: 280px;
  background:
    radial-gradient(circle at 50% 36%, rgba(255, 255, 255, 0.18), transparent 36%),
    linear-gradient(180deg, #f5f7fb, #dce4f0);
}

.support-band {
  padding: 54px clamp(20px, 5vw, 72px);
  color: var(--white);
  background: linear-gradient(100deg, var(--blue-900), var(--blue-700) 58%, var(--red-700));
}

.support-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.support-content h2 {
  color: var(--white);
  font-size: clamp(1.8rem, 3vw, 3.1rem);
}

.support-actions {
  margin-top: 0;
  justify-content: flex-end;
}

.contact-details {
  display: grid;
  gap: 0;
  margin-top: 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.contact-details a {
  color: var(--blue-700);
  font-weight: 800;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(180px, 0.34fr) minmax(0, 0.66fr);
  gap: 24px;
  align-items: start;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.contact-card p {
  margin: 0;
  color: var(--ink);
  font-size: 1.02rem;
}

.contact-label {
  display: block;
  color: var(--red-700);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.social-card a,
.social-card p {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.social-card span[aria-hidden="true"] {
  font-size: 1.35rem;
}

.site-footer {
  color: rgba(255, 255, 255, 0.78);
  background: var(--blue-950);
  padding: 34px clamp(20px, 5vw, 72px);
}

.footer-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto auto;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--white);
}

.site-footer p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1040px) {
  .card-grid,
  .board-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 74px;
  }

  .site-header {
    padding: 10px 16px;
  }

  .brand img {
    width: 36px;
    height: 50px;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 94svh;
    padding: 126px 18px 78px;
  }

  .hero-media {
    background-position: center top;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(7, 23, 51, 0.62), rgba(7, 23, 51, 0.9)),
      linear-gradient(90deg, rgba(187, 31, 45, 0.18), rgba(23, 74, 139, 0.18));
  }

  .button {
    width: 100%;
  }

  .two-column,
  .history-layout {
    grid-template-columns: 1fr;
  }

  .text-panel {
    padding-left: 20px;
  }

  .card-grid,
  .board-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .contact-card {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .gallery-grid {
    grid-auto-rows: 240px;
  }

  .gallery-item.large {
    grid-column: auto;
    grid-row: auto;
  }

  .polycam-frame {
    height: 62vh;
    min-height: 320px;
  }

  .support-content {
    display: block;
  }

  .support-actions {
    justify-content: stretch;
    margin-top: 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    justify-items: start;
  }
}