/* Structure : conteneurs, sections, en-tête, menu mobile, bannières, pied de page. */

/* ------------------------------------------------------------ Conteneurs et sections */
.container { width: min(var(--container), 100% - 2 * var(--gutter)); margin-inline: auto; }
.container.narrow, .narrow { max-width: var(--container-narrow); }
.section { position: relative; padding-block: var(--space-section); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4.5rem); }
.section--sand { background: var(--color-ivory); }
.section--dark { background: var(--color-ink-soft); color: var(--color-on-dark); overflow: hidden; isolation: isolate; }

/* Titre à gauche, contenu à droite (composition récurrente des maquettes) */
.split { display: grid; grid-template-columns: minmax(260px, 1fr) minmax(0, 2.6fr); gap: clamp(2rem, 4vw, 4.5rem); align-items: center; }
.split--wide { grid-template-columns: minmax(260px, 1fr) minmax(0, 2.2fr); align-items: start; }
.duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(2.5rem, 5vw, 5rem); align-items: start; }
.grid { display: grid; gap: clamp(1rem, 2vw, 1.75rem); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.section-row { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-lg); margin-bottom: clamp(1.75rem, 3vw, 2.75rem); flex-wrap: wrap; }
.section-row > .section-head { margin-bottom: 0; }

/* Rangées de cartes : grille sur grand écran, défilement horizontal aimanté en dessous */
.rail { display: grid; gap: clamp(.75rem, 1.2vw, 1.15rem); perspective: 1400px; }
.rail--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.rail--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.rail--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* ------------------------------------------------------------ En-tête */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  color: var(--color-on-dark);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 7, 4, .62), rgba(10, 7, 4, 0));
  transition: opacity var(--dur) var(--ease);
}
.site-header__inner {
  width: min(1480px, 100% - 2 * var(--gutter)); height: 100%; margin-inline: auto;
  display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2.75rem);
}
.site-header.is-stuck, .site-header.is-solid {
  background: rgba(250, 247, 244, .88); color: var(--color-text);
  -webkit-backdrop-filter: blur(16px) saturate(1.3); backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 1px 0 var(--color-border), 0 12px 30px -24px rgba(30, 22, 18, .5);
}
.site-header.is-stuck::before, .site-header.is-solid::before { opacity: 0; }
.site-header.is-hidden { transform: translateY(-100%); }
body:has(.site-header.is-solid) main { padding-top: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: .7rem; flex: none; }
.brand__text { display: grid; line-height: 1; }
.brand__name { font-family: var(--font-display); font-size: 1.22rem; letter-spacing: .09em; text-transform: uppercase; }
.brand__sub { font-size: .56rem; letter-spacing: .5em; text-transform: uppercase; margin-top: .42rem; color: var(--color-brand-light); padding-left: .1em; }
.is-stuck .brand__sub, .is-solid .brand__sub { color: var(--color-accent); }
.logo-mark { flex: none; border-radius: 50%; filter: drop-shadow(0 2px 6px rgba(0, 0, 0, .3)); }
.brand--stack { flex-direction: column; align-items: flex-start; }

.main-nav { margin-inline: auto; }
.main-nav ul { display: flex; gap: clamp(.9rem, 1.9vw, 2.1rem); }
.main-nav a { position: relative; display: block; padding: .5rem 0; font-size: .86rem; font-weight: 500; white-space: nowrap; }
.main-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .1rem; height: 1.5px; background: var(--color-brand);
  transform: scaleX(0); transform-origin: right; transition: transform var(--dur) var(--ease-out);
}
.main-nav a:hover::after, .main-nav a[aria-current]::after { transform: scaleX(1); transform-origin: left; }
.main-nav a[aria-current] { color: var(--color-brand-light); }
.is-stuck .main-nav a[aria-current], .is-solid .main-nav a[aria-current] { color: var(--color-accent); }

.site-header__tools { display: flex; align-items: center; gap: .6rem; flex: none; }
.icon-btn { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; transition: background-color var(--dur-fast); }
.icon-btn:hover { background: rgba(184, 12, 16, .18); }
.lang { display: flex; align-items: center; font-size: .74rem; font-weight: 600; letter-spacing: .08em; }
.lang a { padding: .35rem .45rem; opacity: .62; border-radius: 6px; }
.lang a + a { border-left: 1px solid currentColor; border-radius: 0; }
.lang a[aria-current], .lang a:hover { opacity: 1; }
.lang a[aria-current] { color: var(--color-brand-light); }
.is-stuck .lang a[aria-current], .is-solid .lang a[aria-current] { color: var(--color-accent); }

.burger { display: none; width: 44px; height: 44px; place-items: center; border-radius: 50%; }
.burger__lines { display: grid; gap: 5px; width: 22px; }
.burger__lines span { height: 1.6px; background: currentColor; border-radius: 2px; transition: transform var(--dur) var(--ease), opacity var(--dur-fast); transform-origin: center; }
.burger[aria-expanded="true"] .burger__lines span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.burger[aria-expanded="true"] .burger__lines span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] .burger__lines span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* ------------------------------------------------------------ Menu mobile plein écran */
.drawer {
  position: fixed; inset: 0; z-index: 90; background: #0c0b0b; color: var(--color-on-dark);
  padding: calc(var(--header-h) + 1rem) var(--gutter) 2rem; overflow-y: auto; overscroll-behavior: contain;
  opacity: 0; visibility: hidden; transition: opacity var(--dur) var(--ease), visibility 0s linear var(--dur);
}
.drawer::before { content: ""; position: absolute; inset: 0; background: url("../images/pattern.svg") center / 120px; opacity: .05; pointer-events: none; }
.drawer.is-open { opacity: 1; visibility: visible; transition-delay: 0s; }
.drawer__inner { position: relative; display: grid; gap: 1.75rem; max-width: 480px; margin-inline: auto; }
.drawer__nav a {
  display: flex; align-items: center; justify-content: space-between; padding: 1.02rem 0;
  border-bottom: 1px solid var(--color-border-dark); font-size: 1.08rem; font-weight: 500;
  opacity: 0; transform: translateY(14px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease-out), color var(--dur-fast);
}
.drawer.is-open .drawer__nav a { opacity: 1; transform: none; }
.drawer.is-open .drawer__nav li:nth-child(1) a { transition-delay: .04s; }
.drawer.is-open .drawer__nav li:nth-child(2) a { transition-delay: .08s; }
.drawer.is-open .drawer__nav li:nth-child(3) a { transition-delay: .12s; }
.drawer.is-open .drawer__nav li:nth-child(4) a { transition-delay: .16s; }
.drawer.is-open .drawer__nav li:nth-child(5) a { transition-delay: .2s; }
.drawer.is-open .drawer__nav li:nth-child(6) a { transition-delay: .24s; }
.drawer.is-open .drawer__nav li:nth-child(7) a { transition-delay: .28s; }
.drawer.is-open .drawer__nav li:nth-child(n+8) a { transition-delay: .32s; }
.drawer__nav a[aria-current], .drawer__nav a:hover { color: var(--color-brand-light); }
.drawer__nav .icon { opacity: .55; }
.drawer__lang { gap: .5rem; font-size: .85rem; }
.drawer__lang a { border: 1px solid var(--color-border-dark) !important; border-radius: var(--radius-pill) !important; padding: .5rem .9rem; }
.drawer__cta { display: grid; gap: .75rem; }
body.is-locked { overflow: hidden; }
body.is-locked .site-header { background: transparent; color: var(--color-on-dark); box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; transform: none; }
body.is-locked .site-header .brand__sub { color: var(--color-brand-light); }

/* ------------------------------------------------------------ Bannière (hero) */
.hero {
  position: relative; isolation: isolate; overflow: hidden; color: var(--color-on-dark); background: var(--color-ink);
  display: grid; align-items: end; min-height: clamp(460px, 62vh, 640px);
  padding: calc(var(--header-h) + clamp(2rem, 5vw, 4rem)) 0 clamp(2.75rem, 6vw, 5rem);
}
.hero--home { min-height: min(100svh, 940px); align-items: center; padding-bottom: clamp(3rem, 7vw, 6rem); }
.hero--compact { min-height: clamp(340px, 44vh, 440px); }
.hero__media { position: absolute; inset: -12% 0; z-index: -3; will-change: transform; transform: translate3d(0, var(--py, 0px), 0); }
.hero__media img, .hero__media .img-placeholder { width: 100%; height: 100%; object-fit: cover; object-position: 62% 40%; }
.hero__veil {
  position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(90deg, rgba(12, 8, 4, .86) 0%, rgba(12, 8, 4, .58) 38%, rgba(12, 8, 4, .12) 72%, rgba(12, 8, 4, .3) 100%),
    linear-gradient(0deg, rgba(12, 8, 4, .78) 0%, rgba(12, 8, 4, 0) 42%);
}
.hero__glyph { position: absolute; right: -6%; top: 8%; z-index: -1; opacity: .09; will-change: transform; transform: translate3d(0, var(--py, 0px), 0); pointer-events: none; }
.hero__glyph .logo-mark { width: clamp(280px, 38vw, 560px); height: auto; filter: none; }
.hero__inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: clamp(2rem, 5vw, 5rem); align-items: end; }
.hero__content { max-width: 46rem; }
.hero__eyebrow { margin-bottom: 1.1rem; }
.hero__title { font-size: var(--fs-h1); text-shadow: 0 2px 30px rgba(0, 0, 0, .35); }
.hero--home .hero__title { font-size: var(--fs-hero); letter-spacing: -.02em; }
.hero__title em { font-style: normal; display: inline; background: var(--gradient-brand-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__lead { font-family: var(--font-display); font-size: var(--fs-lead); line-height: 1.3; margin-top: .6rem; max-width: 34rem; }
.hero__text { margin-top: 1.25rem; max-width: 37rem; color: rgba(250, 247, 244, .9); }
.hero__actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: clamp(1.5rem, 3vw, 2.25rem); }
.hero__aside { will-change: transform; transform: translate3d(0, var(--py, 0px), 0); perspective: 900px; }
.hero__index { position: absolute; right: clamp(1rem, 2.4vw, 2.6rem); top: 50%; translate: 0 -50%; display: grid; gap: 1.2rem; font-size: .72rem; letter-spacing: .12em; }
.hero__index a { display: grid; justify-items: center; gap: .6rem; opacity: .7; transition: opacity var(--dur-fast); }
.hero__index a::after { content: ""; width: 1px; height: 2.2rem; background: currentColor; opacity: .5; transform-origin: top; transition: transform var(--dur) var(--ease), opacity var(--dur-fast); }
.hero__index a:last-child::after { display: none; }
.hero__index a:hover { opacity: 1; }
.hero__index a:hover::after { transform: scaleY(1.25); }
.hero__index em { position: absolute; right: 2rem; font-style: normal; white-space: nowrap; opacity: 0; translate: 8px 0; transition: opacity var(--dur-fast), translate var(--dur) var(--ease); pointer-events: none; }
.hero__index a { position: relative; }
.hero__index a:hover em, .hero__index a:focus-visible em { opacity: 1; translate: 0 0; }

/* Carte « verre » et emblème de la bannière */
.glass-card {
  width: clamp(190px, 17vw, 240px); padding: 1.6rem 1.5rem; border-radius: var(--radius-md);
  background: rgba(14, 10, 6, .52); border: 1px solid rgba(255, 255, 255, .34);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); box-shadow: var(--shadow-lg);
  transform-style: preserve-3d;
}
.glass-card__rule { display: block; width: 1.6rem; height: 1px; background: var(--color-brand-light); }
.glass-card__quote { font-family: var(--font-display); font-size: clamp(1.15rem, 1.5vw, 1.45rem); line-height: 1.25; margin-block: 1.1rem; transform: translateZ(26px); }
.glass-card__meta { margin-top: 1.1rem; font-size: .68rem; letter-spacing: .06em; color: var(--color-on-dark-muted); }
.emblem { display: grid; justify-items: center; gap: 1rem; text-align: center; }
.emblem p { max-width: 9.5em; font-size: .7rem; letter-spacing: .34em; line-height: 2; text-transform: uppercase; }

/* Fil d'Ariane */
.breadcrumbs { margin-bottom: 1.2rem; font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .4rem .9rem; }
.breadcrumbs li + li::before { content: "›"; margin-right: .9rem; opacity: .6; }
.breadcrumbs a { opacity: .78; }
.breadcrumbs a:hover { opacity: 1; text-decoration: underline; text-underline-offset: 3px; }

/* En-tête de page sans image (articles, albums, pages légales) */
.page-head { padding: clamp(2.5rem, 5vw, 4.5rem) 0 clamp(1.25rem, 2.5vw, 2rem); background: var(--color-ivory); border-bottom: 1px solid var(--color-border); }
.page-head h1 { font-size: clamp(2.2rem, 4.4vw, 3.6rem); }
.page-head .lead { margin-top: 1rem; }
.page-head__meta { margin-top: .75rem; font-size: var(--fs-small); color: var(--color-muted); }
.page-head .eyebrow { margin-bottom: .9rem; }

/* ------------------------------------------------------------ Bandeau d'appel final */
.cta-band { position: relative; isolation: isolate; overflow: hidden; background: var(--color-ink); color: var(--color-on-dark); padding-block: clamp(2.75rem, 5.5vw, 4.75rem); }
.cta-band__bg { position: absolute; inset: -25% 0; z-index: -3; opacity: .5; will-change: transform; transform: translate3d(0, var(--py, 0px), 0); }
.cta-band__bg img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 62%; }
.cta-band::before { content: ""; position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(12, 8, 4, .93), rgba(12, 8, 4, .62) 55%, rgba(12, 8, 4, .86)); }
.cta-band__pattern { position: absolute; inset: 0; z-index: -1; opacity: .16; background: url("../images/pattern.svg") left center / 96px repeat-y, url("../images/pattern.svg") right center / 96px repeat-y; }
.cta-band__inner { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: clamp(1.25rem, 3vw, 3rem); }
.cta-band h2 { font-size: clamp(1.7rem, 3vw, 2.8rem); }
.cta-band h2 em { font-style: normal; color: var(--color-brand-light); }
.cta-band__text p:not(.eyebrow) { margin-top: .6rem; max-width: 46rem; color: var(--color-on-dark-muted); }
.cta-band__text .eyebrow { margin-bottom: .6rem; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: .75rem; }

/* ------------------------------------------------------------ Pied de page */
.site-footer { position: relative; background: #0c0b0b; color: var(--color-on-dark-muted); font-size: .92rem; }
.site-footer__frieze { height: 24px; background: url("../images/frieze.svg") center / 48px 24px repeat-x; opacity: .32; }
.site-footer__grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr) 1.25fr; gap: clamp(1.75rem, 3.5vw, 3.5rem); padding-block: clamp(2.75rem, 5vw, 4.5rem); }
.site-footer .brand { color: var(--color-on-dark); }
.site-footer__baseline { margin-top: 1.1rem; max-width: 22rem; font-family: var(--font-display); font-size: 1.06rem; line-height: 1.45; color: var(--color-on-dark); }
.site-footer h2 { font-family: var(--font-body); font-size: .7rem; font-weight: 600; letter-spacing: .26em; text-transform: uppercase; color: var(--color-brand-light); margin-bottom: 1.15rem; }
.site-footer__col ul { display: grid; gap: .6rem; }
.site-footer__col a, .site-footer__bottom a, .link-button { transition: color var(--dur-fast); }
.site-footer__col a:hover, .site-footer__bottom a:hover, .link-button:hover { color: var(--color-brand-light); }
.site-footer__support { display: grid; gap: .75rem; align-content: start; justify-items: start; }
.site-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .75rem 2rem; padding-block: 1.35rem; border-top: 1px solid var(--color-border-dark); font-size: .8rem; }
.site-footer__bottom ul { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }
.link-button { color: inherit; font-size: inherit; text-align: left; }

.socials { display: flex; gap: .6rem; margin-top: 1.4rem; }
.socials a { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--color-border-dark); color: var(--color-on-dark); transition: background-color var(--dur-fast), color var(--dur-fast), transform var(--dur) var(--ease-out); }
.socials a:hover { background: var(--color-brand); color: #fff; transform: translateY(-3px); }
.socials--dark a { background: var(--color-ink); border-color: var(--color-ink); }
.socials--dark { margin-top: .5rem; }

/* ------------------------------------------------------------ Responsive */
@media (max-width: 1380px) {
  .main-nav { display: none; }
  .burger { display: grid; }
  .site-header__tools { margin-left: auto; }
  .site-footer__grid { grid-template-columns: repeat(3, 1fr); }
  .site-footer__brand { grid-column: 1 / -1; }
}
/* Malagasy : libellés de menu plus longs, le menu replié s'active donc plus tôt. */
@media (max-width: 1560px) {
  html[lang="mg"] .main-nav { display: none; }
  html[lang="mg"] .burger { display: grid; }
  html[lang="mg"] .site-header__tools { margin-left: auto; }
}
@media (max-width: 1024px) {
  .split, .split--wide, .duo { grid-template-columns: minmax(0, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  /* Tablette et mobile : les rangées deviennent des carrousels tactiles */
  .rail {
    display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; -webkit-overflow-scrolling: touch;
    margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); scroll-padding-inline: var(--gutter); padding-block: .5rem 1rem; perspective: none;
  }
  .rail::-webkit-scrollbar { display: none; }
  .rail > * { flex: 0 0 clamp(190px, 27vw, 260px); scroll-snap-align: start; }
  .hero__inner { grid-template-columns: minmax(0, 1fr); }
  .hero__aside { display: none; }
  .hero__index { display: none; }
  .cta-band__inner { grid-template-columns: minmax(0, 1fr); }
  .cta-band__mark { display: none; }
}
@media (max-width: 768px) {
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .site-header .lang, .site-header .site-header__join, .site-header .site-header__give, .site-header .icon-btn { display: none; }
  .brand__name { font-size: 1.02rem; }
  .brand .logo-mark { width: 38px; height: 38px; }
  .hero { min-height: clamp(420px, 68svh, 560px); }
  .hero--home { min-height: min(100svh, 760px); align-items: end; }
  .hero--compact { min-height: 300px; }
  .hero__veil { background: linear-gradient(0deg, rgba(12, 8, 4, .94) 4%, rgba(12, 8, 4, .62) 52%, rgba(12, 8, 4, .34) 100%); }
  .hero__media img { object-position: 68% 40%; }
  .hero__glyph { display: none; }
  .hero__actions { display: grid; grid-template-columns: minmax(0, 1fr); max-width: 22rem; }
  .hero__actions .btn { justify-content: center; }
  .rail > * { flex-basis: min(72vw, 280px); }
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__support { grid-column: 1 / -1; }
  .site-footer__bottom { flex-direction: column; }
}
@media (max-width: 480px) {
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .site-footer__grid { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__media, .hero__glyph, .hero__aside, .cta-band__bg { transform: none; }
}

/* Bannière sans photo (contenu dont l'image n'est pas encore fournie) : fond sombre à motif */
.hero .img-placeholder, .d-card .img-placeholder, .t-card .img-placeholder, .x-card .img-placeholder, .cta-band .img-placeholder, .feature .img-placeholder, .album .img-placeholder { background-color: #1d1a19; opacity: .55; }