/*
 * Blog Voyage Ultime — base (toutes les pages)
 * Polices, couleurs, en-tête, navigation, cartes, boutons, pied de page.
 * Valeurs reprises de la maquette « 4a · Vadrouille ».
 */

/* ─── Polices auto-hébergées (sous-ensemble latin, accents français inclus) ─── */
@font-face {
	font-family: "Jost";
	font-style: normal;
	font-weight: 300 400;
	font-display: swap;
	src: url("../../fonts/jost-latin.woff2") format("woff2");
	unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
	font-family: "Karla";
	font-style: normal;
	font-weight: 400;
	font-display: swap;
	src: url("../../fonts/karla-latin.woff2") format("woff2");
	unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ─── Couleurs et mesures ─────────────────────────────────────────────────── */
:root {
	--bvu-bg: #fcfcfb;          /* blanc chaud */
	--bvu-ink: #23282b;         /* texte */
	--bvu-grey-1: #3a4045;      /* chapô */
	--bvu-grey-2: #4c5257;      /* extraits, texte secondaire */
	--bvu-grey-3: #5f676b;      /* accroche, légendes */
	--bvu-grey-4: #7a8085;      /* dates, fil d'Ariane, pied de page */
	--bvu-line: #e2e1dd;        /* filets */
	--bvu-rule: #c9c7c2;        /* soulignés « Lire la suite » */
	--bvu-sand: #f4f3f0;        /* fonds de section */
	--bvu-placeholder: #e4e3df; /* emplacement photo vide */

	/* Bleu pétrole : valeurs hexadécimales de repli, oklch() exact si supporté. */
	--bvu-accent: #0a5763;      /* oklch(0.42 0.07 212) — textes */
	--bvu-accent-bg: #185f6c;   /* oklch(0.45 0.07 212) — fonds */

	--bvu-title: "Jost", "Futura", "Century Gothic", "Avenir Next", Arial, sans-serif;
	--bvu-text: "Karla", "Helvetica Neue", Arial, sans-serif;

	--bvu-max: 1180px;
	--bvu-pad: 44px;
}
@supports (color: oklch(0 0 0)) {
	:root {
		--bvu-accent: oklch(0.42 0.07 212);
		--bvu-accent-bg: oklch(0.45 0.07 212);
	}
}

/* ─── Socle ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	background: var(--bvu-bg);
	color: var(--bvu-ink);
	font: 400 16px/1.7 var(--bvu-text);
	-webkit-font-smoothing: antialiased;
	text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; height: auto; }
img { display: block; }

a { color: inherit; text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--bvu-accent); }

p { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; }

:focus-visible { outline: 2px solid var(--bvu-accent); outline-offset: 3px; }

.bvu-wrap {
	width: 100%;
	max-width: var(--bvu-max);
	margin-inline: auto;
	padding-inline: var(--bvu-pad);
}

.bvu-center { text-align: center; }

.screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(1px, 1px, 1px, 1px);
	clip-path: inset(50%);
	white-space: nowrap;
}

.bvu-skip {
	position: absolute; left: 12px; top: -60px; z-index: 100;
	background: var(--bvu-ink); color: var(--bvu-bg);
	font: 400 12px/1 var(--bvu-title); letter-spacing: .16em; text-transform: uppercase;
	padding: 12px 16px;
}
.bvu-skip:focus { top: 12px; color: var(--bvu-bg); }

/* ─── Libellés en petites capitales (catégories, sur-titres) ──────────────── */
.bvu-label {
	margin: 0;
	font: 400 11px/1 var(--bvu-title);
	letter-spacing: .16em;
	text-transform: uppercase;
	color: var(--bvu-accent);
}

/* ─── En-tête ─────────────────────────────────────────────────────────────── */
.bvu-header .bvu-wrap { padding-top: 34px; }

.bvu-brand { text-align: center; }

.bvu-brand__name {
	margin: 0;
	font: 300 36px/1 var(--bvu-title);
	letter-spacing: .26em;
	text-transform: uppercase;
}
.bvu-brand__name a:hover { color: inherit; }

.bvu-brand .custom-logo-link { display: inline-block; }
.bvu-brand .custom-logo { max-height: 80px; width: auto; margin-inline: auto; }

.bvu-brand__tagline {
	margin: 12px 0 0;
	font: 400 13px/1 var(--bvu-text);
	letter-spacing: .08em;
	color: var(--bvu-grey-3);
}

/* ─── Navigation ──────────────────────────────────────────────────────────── */
.bvu-nav {
	margin-top: 28px;
	border-top: 1px solid var(--bvu-line);
	border-bottom: 1px solid var(--bvu-line);
	font: 400 12px/1 var(--bvu-title);
	letter-spacing: .2em;
	text-transform: uppercase;
}

.bvu-nav__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	column-gap: 40px;
}

.bvu-nav__list > li { position: relative; display: flex; align-items: center; }

/* Le padding vertical est porté par le lien : le survol couvre toute la
   hauteur de la barre, le sous-menu s'ouvre sans « trou » sous le filet. */
.bvu-nav__list > li > a { display: block; padding: 15px 0; }

.bvu-nav .current-menu-item > a,
.bvu-nav .current-menu-ancestor > a,
.bvu-nav .current-menu-parent > a,
.bvu-nav .current-post-ancestor > a,
.bvu-nav .current-category-ancestor > a { color: var(--bvu-accent); }

.bvu-nav__toggle {
	display: inline-flex; align-items: center; justify-content: center;
	width: 22px; height: 22px; margin-left: 4px; padding: 0;
	background: none; border: 0; color: inherit; cursor: pointer;
}

.bvu-nav__sub {
	list-style: none;
	margin: 0;
	padding: 10px 0;
	position: absolute;
	top: 100%;
	left: 50%;
	z-index: 50;
	min-width: 230px;
	transform: translateX(-50%);
	background: var(--bvu-bg);
	border: 1px solid var(--bvu-line);
	font-size: 11px;
	letter-spacing: .16em;
	opacity: 0;
	visibility: hidden;
	transition: opacity .15s ease, visibility .15s ease;
}
.bvu-nav__sub a { display: block; padding: 11px 22px; white-space: nowrap; }

.bvu-nav__list > li:hover > .bvu-nav__sub,
.bvu-nav__list > li:focus-within > .bvu-nav__sub,
.bvu-nav__list > li.is-open > .bvu-nav__sub { opacity: 1; visibility: visible; }

.bvu-nav__burger { display: none; }

@media (max-width: 900px) {
	.bvu-nav__burger {
		display: flex; align-items: center; justify-content: center; gap: 12px;
		width: 100%; padding: 15px 0;
		background: none; border: 0; color: inherit; cursor: pointer;
		font: inherit; letter-spacing: inherit; text-transform: inherit;
	}
	.bvu-nav__burger-icon { display: grid; gap: 4px; width: 16px; }
	.bvu-nav__burger-icon span { display: block; height: 1px; background: currentColor; transition: transform .2s ease; }
	.bvu-nav.is-open .bvu-nav__burger-icon span:first-child { transform: translateY(2.5px) rotate(45deg); }
	.bvu-nav.is-open .bvu-nav__burger-icon span:last-child { transform: translateY(-2.5px) rotate(-45deg); }

	.bvu-nav__panel { display: none; border-top: 1px solid var(--bvu-line); }
	.bvu-nav.is-open .bvu-nav__panel { display: block; }

	.bvu-nav__list { flex-direction: column; align-items: stretch; column-gap: 0; }
	.bvu-nav__list > li { flex-wrap: wrap; justify-content: center; }
	.bvu-nav__list > li + li { border-top: 1px solid var(--bvu-line); }
	.bvu-nav__list > li > a { padding: 16px 0; }

	.bvu-nav__sub {
		position: static; transform: none; min-width: 0; width: 100%;
		display: none; opacity: 1; visibility: visible;
		border: 0; padding: 0 0 10px; text-align: center; background: transparent;
	}
	/* Sur mobile, pas d'ouverture au survol ni au focus : seul le bouton ouvre. */
	.bvu-nav__list > li:hover > .bvu-nav__sub,
	.bvu-nav__list > li:focus-within > .bvu-nav__sub { display: none; }
	.bvu-nav__list > li.is-open > .bvu-nav__sub { display: block; }
	.bvu-nav__sub a { padding: 10px 0; white-space: normal; }
}

/* ─── Titres de section ───────────────────────────────────────────────────── */
.bvu-section-head { text-align: center; }
.bvu-section-head .bvu-label { font-size: 12px; letter-spacing: .24em; }

.bvu-section-title {
	margin: 14px 0 0;
	font: 300 40px/1.1 var(--bvu-title);
}

/* ─── Cartes d'articles ───────────────────────────────────────────────────── */
.bvu-grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 44px 34px;
}

.bvu-card__link { display: block; }
.bvu-card__link:hover { color: inherit; }
.bvu-card__link:hover .bvu-card__title { color: var(--bvu-accent); }

.bvu-card__media {
	height: 250px;
	margin-bottom: 18px;
	overflow: hidden;
	background: var(--bvu-placeholder);
}
.bvu-card__media img {
	width: 100%; height: 100%;
	object-fit: cover;
	transition: transform .5s ease;
}
.bvu-card__link:hover .bvu-card__media img { transform: scale(1.03); }

.bvu-card__cat { margin-bottom: 12px; }

.bvu-card__title {
	margin: 0 0 10px;
	font: 400 24px/1.28 var(--bvu-title);
	transition: color .15s ease;
}

.bvu-card__date {
	margin: 0 0 12px;
	font: 400 12px/1 var(--bvu-text);
	color: var(--bvu-grey-4);
}

.bvu-card__excerpt {
	margin: 0 0 14px;
	font: 400 15px/1.65 var(--bvu-text);
	color: var(--bvu-grey-2);
}

.bvu-more {
	display: inline-block;
	padding-bottom: 4px;
	border-bottom: 1px solid var(--bvu-rule);
	font: 400 11px/1 var(--bvu-title);
	letter-spacing: .18em;
	text-transform: uppercase;
}

/* Carte « À lire ensuite » */
.bvu-card--related .bvu-card__media { height: 210px; margin-bottom: 16px; }
.bvu-card--related .bvu-card__cat { margin-bottom: 10px; }
.bvu-card--related .bvu-card__title { margin: 0; font-size: 21px; line-height: 1.3; }

/* ─── Boutons et liens soulignés ──────────────────────────────────────────── */
.bvu-btn {
	display: inline-block;
	padding: 16px 30px;
	border: 1px solid var(--bvu-ink);
	font: 400 11px/1 var(--bvu-title);
	letter-spacing: .2em;
	text-transform: uppercase;
	transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.bvu-btn:hover { background: var(--bvu-ink); color: var(--bvu-bg); }

.bvu-btn--solid { color: var(--bvu-on-accent, var(--bvu-bg)); background: var(--bvu-accent-bg); border-color: var(--bvu-accent-bg); }
.bvu-btn--solid:hover { color: var(--bvu-bg); background: var(--bvu-ink); border-color: var(--bvu-ink); }

.bvu-link {
	display: inline-block;
	padding-bottom: 5px;
	border-bottom: 1px solid var(--bvu-ink);
	font: 400 11px/1 var(--bvu-title);
	letter-spacing: .2em;
	text-transform: uppercase;
}

/* ─── Fil d'Ariane ────────────────────────────────────────────────────────── */
.bvu-crumbs ol {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	row-gap: 6px; /* si le fil d'Ariane passe sur deux lignes */
	font: 400 11px/1 var(--bvu-title); /* interligne 1 comme la maquette */
	letter-spacing: .16em;
	text-transform: uppercase;
	color: var(--bvu-grey-4);
}
.bvu-crumbs li + li::before { content: "/"; margin: 0 .45em; }

/* ─── Pied de page ────────────────────────────────────────────────────────── */
.bvu-footer { border-top: 1px solid var(--bvu-line); }
.bvu-footer .bvu-wrap { padding-block: 40px; text-align: center; }

.bvu-footer__name {
	margin: 0;
	font: 300 22px/1 var(--bvu-title);
	letter-spacing: .22em;
	text-transform: uppercase;
}

.bvu-footer__list {
	list-style: none;
	margin: 18px 0 0;
	padding: 0;
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	gap: 12px 26px;
	font: 400 11px/1 var(--bvu-title);
	letter-spacing: .16em;
	text-transform: uppercase;
	color: var(--bvu-grey-4);
}
.bvu-footer .bvu-wrap > nav:first-child .bvu-footer__list { margin-top: 0; } /* nom du site masqué */
.bvu-footer__text {
	margin: 22px 0 0;
	font: 400 13px/1.6 var(--bvu-text);
	color: var(--bvu-grey-4);
}
.bvu-footer .bvu-wrap > .bvu-footer__text:first-child { margin-top: 0; }

/* ─── Recherche et états vides ────────────────────────────────────────────── */
.bvu-empty { padding-block: 72px 76px; text-align: center; }
.bvu-empty p { color: var(--bvu-grey-2); }
.bvu-empty .bvu-section-title { margin-bottom: 18px; }

.search-form { display: flex; justify-content: center; gap: 10px; margin: 24px auto; max-width: 460px; }
.search-form label { flex: 1; }
.search-field {
	width: 100%; padding: 14px 16px;
	border: 1px solid var(--bvu-rule); background: #fff; color: var(--bvu-ink);
	font: 400 15px/1.2 var(--bvu-text);
}
.search-submit {
	padding: 14px 22px; border: 1px solid var(--bvu-ink); background: var(--bvu-ink); color: var(--bvu-bg); cursor: pointer;
	font: 400 11px/1 var(--bvu-title); letter-spacing: .2em; text-transform: uppercase;
}

/* ─── Adaptation écrans ───────────────────────────────────────────────────── */
@media (max-width: 1024px) {
	:root { --bvu-pad: 32px; }
}

@media (max-width: 900px) {
	.bvu-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 26px; }
}

@media (max-width: 640px) {
	:root { --bvu-pad: 20px; }

	.bvu-header .bvu-wrap { padding-top: 26px; }
	.bvu-brand__name { font-size: clamp(18px, 5vw, 36px); letter-spacing: .16em; }
	.bvu-brand__tagline { line-height: 1.5; } /* l'accroche passe sur deux lignes */
	.bvu-nav { margin-top: 22px; }

	.bvu-section-title { font-size: clamp(28px, 8vw, 40px); }

	.bvu-grid { grid-template-columns: 1fr; gap: 40px; }
	.bvu-card__media { height: auto; aspect-ratio: 341 / 250; }
	.bvu-card__title { font-size: 22px; }

	.bvu-footer__name { font-size: 18px; letter-spacing: .16em; }
}

@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after { transition: none !important; }
}