/* ==========================================================
   ASBL Atlas Sports — feuille de style
   Couleurs reprises du logo : rouge et bleu
   ========================================================== */

:root {
  --rouge: #e3232c;
  --rouge-fonce: #b8141c;
  --bleu: #2e4a9a;
  --bleu-fonce: #1b2f6b;
  --bleu-nuit: #0f1d45;
  --ciel: #eaf1fb;
  --texte: #1f2937;
  --texte-doux: #5b6576;
  --fond: #f7f9fc;
  --blanc: #ffffff;
  --bord: #e3e8f0;
  --rayon: 16px;
  --ombre: 0 1px 2px rgba(15, 29, 69, .06), 0 8px 24px rgba(15, 29, 69, .08);
  --ombre-forte: 0 12px 40px rgba(15, 29, 69, .18);
  --largeur: 1140px;
  --police: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--police);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--texte);
  background: var(--fond);
}

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

a { color: var(--bleu); text-underline-offset: 3px; }
a:hover { color: var(--rouge); }

h1, h2, h3 { line-height: 1.2; letter-spacing: -.02em; color: var(--bleu-nuit); margin: 0 0 .6em; }
h1 { font-size: clamp(2rem, 5vw + .5rem, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 2.5vw + .6rem, 2.3rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1em; }

.conteneur { width: 100%; max-width: var(--largeur); margin-inline: auto; padding-inline: 20px; }

.lien-evitement {
  position: absolute; left: -999px; top: 8px; z-index: 100;
  background: var(--bleu); color: #fff; padding: 10px 16px; border-radius: 8px;
}
.lien-evitement:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--rouge); outline-offset: 3px; border-radius: 4px; }

/* ---------- En-tête ---------- */

.entete {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--bord);
}
.entete .conteneur { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 16px; }

.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo img { height: 58px; width: auto; }

.nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.nav a {
  display: block; padding: 10px 14px; border-radius: 999px;
  font-weight: 600; font-size: .95rem; color: var(--bleu-nuit); text-decoration: none;
  transition: background .2s, color .2s;
}
.nav a:hover { background: var(--ciel); color: var(--bleu); }
.nav a[aria-current="page"] { background: var(--bleu); color: #fff; }

.burger {
  display: none; width: 48px; height: 48px; border: 0; border-radius: 12px;
  background: var(--ciel); cursor: pointer; position: relative;
}
.burger span, .burger span::before, .burger span::after {
  position: absolute; left: 50%; width: 22px; height: 2.5px; border-radius: 2px;
  background: var(--bleu-nuit); transition: transform .25s, opacity .2s; content: "";
}
.burger span { top: 50%; transform: translate(-50%, -50%); }
.burger span::before { left: 0; top: -7px; }
.burger span::after { left: 0; top: 7px; }
.burger[aria-expanded="true"] span { background: transparent; }
.burger[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .burger { display: block; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--blanc); border-bottom: 1px solid var(--bord); box-shadow: var(--ombre);
    display: none;
  }
  .nav.ouvert { display: block; }
  .nav ul { flex-direction: column; padding: 12px 20px 20px; gap: 4px; }
  .nav a { padding: 14px 16px; border-radius: 12px; font-size: 1.05rem; }
  .logo img { height: 50px; }
}

/* ---------- Bandeau d'accueil ---------- */

.hero {
  position: relative; color: #fff; overflow: hidden;
  background: var(--bleu-nuit) url("../images/background.jpg") center 30% / cover no-repeat;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(15, 29, 69, .88) 0%, rgba(27, 47, 107, .6) 55%, rgba(27, 47, 107, .15) 100%);
}
.hero .conteneur { position: relative; padding-block: clamp(72px, 12vw, 140px); }
.hero h1 { color: #fff; max-width: 14ch; margin-bottom: .35em; }
.hero p.accroche { font-size: clamp(1.1rem, 1vw + .9rem, 1.35rem); max-width: 40ch; opacity: .92; }
.hero .surtitre {
  display: inline-block; margin-bottom: 18px; padding: 6px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .28);
  font-size: .85rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
}
.hero .boutons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.bandeau-page {
  position: relative; color: #fff; overflow: hidden;
  background: var(--bleu-nuit) center / cover no-repeat;
}
.bandeau-page::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(15, 29, 69, .9), rgba(27, 47, 107, .55));
}
.bandeau-page .conteneur { position: relative; padding-block: clamp(48px, 8vw, 88px); }
.bandeau-page h1 { color: #fff; margin: 0; font-size: clamp(2rem, 4vw + .5rem, 3rem); }
.bandeau-page p { margin: .5em 0 0; font-size: 1.15rem; opacity: .9; }

/* ---------- Boutons ---------- */

.bouton {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px; border: 2px solid transparent;
  font-weight: 700; font-size: 1rem; text-decoration: none; cursor: pointer;
  transition: transform .15s, background .2s, color .2s, box-shadow .2s;
}
.bouton:hover { transform: translateY(-2px); }
.bouton-rouge { background: var(--rouge); color: #fff; box-shadow: 0 6px 18px rgba(227, 35, 44, .35); }
.bouton-rouge:hover { background: var(--rouge-fonce); color: #fff; }
.bouton-clair { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .6); }
.bouton-clair:hover { background: #fff; color: var(--bleu-nuit); }
.bouton-bleu { background: var(--bleu); color: #fff; }
.bouton-bleu:hover { background: var(--bleu-fonce); color: #fff; }
.bouton svg { width: 20px; height: 20px; flex: none; }

/* ---------- Sections ---------- */

.section { padding-block: clamp(56px, 8vw, 96px); }
.section-blanche { background: var(--blanc); }
.entete-section { max-width: 680px; margin-bottom: 40px; }
.entete-section .surtitre {
  display: block; color: var(--rouge); font-weight: 800; font-size: .85rem;
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px;
}
.entete-section p { color: var(--texte-doux); font-size: 1.1rem; }

/* ---------- Objectifs ---------- */

.grille-objectifs {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 20px;
  counter-reset: objectif;
}
.grille-objectifs li {
  position: relative; background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon);
  padding: 26px 24px 24px 24px; box-shadow: var(--ombre); counter-increment: objectif;
  transition: transform .2s, box-shadow .2s;
}
.grille-objectifs li:hover { transform: translateY(-3px); box-shadow: var(--ombre-forte); }
.grille-objectifs li::before {
  content: counter(objectif, decimal-leading-zero);
  display: block; font-size: .95rem; font-weight: 800; color: var(--rouge); margin-bottom: 10px;
}

/* ---------- Cartes calendrier ---------- */

.grille-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 24px; }

.carte {
  background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon);
  box-shadow: var(--ombre); overflow: hidden; display: flex; flex-direction: column;
}
.carte-image { aspect-ratio: 16 / 7; overflow: hidden; background: var(--ciel); }
.carte-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.carte:hover .carte-image img { transform: scale(1.04); }
.carte-corps { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.carte-corps h3 { font-size: 1.5rem; margin-bottom: .2em; }
.etiquette {
  display: inline-block; align-self: flex-start; margin-bottom: 14px;
  padding: 4px 12px; border-radius: 999px; background: var(--ciel); color: var(--bleu);
  font-size: .8rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
}
.periode { border-top: 1px solid var(--bord); padding-top: 18px; margin-top: 18px; }
.periode:first-of-type { border-top: 0; padding-top: 0; margin-top: 4px; }
.periode h4 { margin: 0 0 6px; font-size: 1.05rem; color: var(--bleu-nuit); }
.periode p { margin: 0; color: var(--texte-doux); }
.date-forte { font-size: 1.15rem; font-weight: 700; color: var(--texte) !important; }
.carte-corps .bouton { margin-top: auto; align-self: flex-start; }
.carte-corps .espace { flex: 1; min-height: 20px; }

.avis {
  margin-top: 8px; padding: 18px 20px; border-radius: 12px;
  background: #fff4f4; border-left: 4px solid var(--rouge);
}
.avis p { color: var(--texte) !important; margin-bottom: .5em; }
.avis p:last-child { margin-bottom: 0; }
.avis .signature { font-style: italic; color: var(--texte-doux) !important; }

/* ---------- Liste des stages ---------- */

.grille-stages {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 14px;
}
.grille-stages li {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 14px;
  background: var(--blanc); border: 1px solid var(--bord); border-radius: 14px; padding: 18px 20px;
  transition: border-color .2s, box-shadow .2s;
}
.grille-stages li:hover { border-color: var(--bleu); box-shadow: var(--ombre); }
.grille-stages .nom { font-weight: 700; color: var(--bleu-nuit); }
.grille-stages .detail { display: block; font-weight: 400; font-size: .95rem; color: var(--texte-doux); margin-top: 2px; }
.grille-stages .age {
  flex: none; white-space: nowrap; padding: 4px 10px; border-radius: 999px;
  background: var(--ciel); color: var(--bleu); font-size: .85rem; font-weight: 700;
}
.grille-stages .nouveau {
  display: inline-block; margin-left: 6px; padding: 1px 8px; border-radius: 999px;
  background: var(--rouge); color: #fff; font-size: .72rem; font-weight: 800; vertical-align: 2px;
}

/* ---------- Sports d'hiver ---------- */

.deux-colonnes { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
@media (max-width: 860px) { .deux-colonnes { grid-template-columns: 1fr; } }
.photo-arrondie { border-radius: var(--rayon); box-shadow: var(--ombre-forte); width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.chiffres { display: flex; flex-wrap: wrap; gap: 16px; margin: 28px 0; }
.chiffre {
  flex: 1 1 140px; background: var(--ciel); border-radius: 14px; padding: 18px 20px;
}
.chiffre strong { display: block; font-size: 2rem; line-height: 1; color: var(--bleu); font-weight: 800; }
.chiffre span { color: var(--texte-doux); font-size: .95rem; }

.liste-simple { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 6px; }
.liste-simple a { word-break: break-word; }

.pdf-liens { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

.domaines { color: var(--texte-doux); font-size: .95rem; letter-spacing: .02em; }

/* ---------- Programme ski : voyage ---------- */

.voyage { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 20px; }
.trajet { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 24px; box-shadow: var(--ombre); }
.trajet h3 { display: flex; align-items: center; gap: 10px; }
.trajet h3 span { font-size: .75rem; padding: 3px 10px; border-radius: 999px; background: var(--rouge); color: #fff; text-transform: uppercase; letter-spacing: .06em; }
.trajet.retour h3 span { background: var(--bleu); }
.etapes { list-style: none; margin: 0; padding: 0 0 0 22px; border-left: 2px dashed var(--bord); display: grid; gap: 16px; }
.etapes li { position: relative; }
.etapes li::before { content: ""; position: absolute; left: -29px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: var(--blanc); border: 3px solid var(--bleu); }
.etapes strong { display: block; color: var(--bleu-nuit); }
.etapes span { color: var(--texte-doux); }
.note { margin-top: 20px; padding: 14px 18px; border-radius: 12px; background: var(--ciel); color: var(--bleu-nuit); }

/* ---------- Listes à puces cochées ---------- */

.liste-coches { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.liste-coches li { position: relative; padding-left: 30px; }
.liste-coches li::before {
  content: ""; position: absolute; left: 0; top: .35em; width: 18px; height: 18px; border-radius: 50%;
  background: var(--ciel) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232e4a9a' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / 11px no-repeat;
}

/* ---------- Formules et tarifs ---------- */

.formules { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 20px; margin-bottom: 40px; }
.formule { background: var(--blanc); border: 2px solid var(--bord); border-radius: var(--rayon); padding: 28px; }
.formule.vedette { border-color: var(--bleu); box-shadow: var(--ombre-forte); position: relative; }
.formule.vedette::after {
  content: "Top ski pour tous"; position: absolute; top: -13px; right: 20px;
  background: var(--rouge); color: #fff; font-size: .75rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 999px;
}
.formule h3 { font-size: 1.4rem; margin-bottom: .1em; }
.formule .domaine { color: var(--rouge); font-weight: 700; margin-bottom: 14px; }

.tarifs { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 16px; }
.tarif { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: 22px; box-shadow: var(--ombre); display: flex; flex-direction: column; }
.tarif h4 { margin: 0 0 4px; font-size: 1.1rem; color: var(--bleu-nuit); }
.tarif .inclus { font-size: .9rem; color: var(--texte-doux); margin-bottom: 16px; }
.tarif .montants { margin-top: auto; display: flex; flex-wrap: wrap; gap: 8px 22px; }
.tarif .montant small { display: block; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--texte-doux); }
.tarif .montant strong { font-size: 1.8rem; font-weight: 800; color: var(--bleu); line-height: 1.1; }

/* ---------- Tableau des options ---------- */

.lignes-prix { list-style: none; margin: 0; padding: 0; }
.lignes-prix li { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--bord); }
.lignes-prix li:last-child { border-bottom: 0; }
.lignes-prix .libelle small { display: block; color: var(--texte-doux); font-size: .9rem; }
.lignes-prix .valeur { flex: none; font-weight: 800; color: var(--bleu-nuit); white-space: nowrap; }

.liste-numerotee { margin: 0; padding-left: 1.4em; display: grid; gap: 10px; }
.liste-numerotee li::marker { color: var(--rouge); font-weight: 800; }

.encadre-date { text-align: center; background: var(--ciel); border-radius: 14px; padding: 20px; margin: 16px 0; }
.encadre-date small { display: block; color: var(--texte-doux); font-weight: 600; }
.encadre-date strong { font-size: 1.6rem; color: var(--rouge); font-weight: 800; }
.compte { font-family: ui-monospace, Consolas, monospace; font-size: 1.05rem; font-weight: 700; color: var(--bleu-nuit); word-break: break-word; }

.citation {
  margin: 0; padding: clamp(24px, 4vw, 40px); border-radius: var(--rayon);
  background: var(--blanc); border-left: 5px solid var(--rouge); box-shadow: var(--ombre);
  font-size: 1.1rem;
}
.citation p { margin-bottom: .8em; }
.citation footer { font-weight: 700; color: var(--bleu-nuit); margin-top: 12px; }

/* ---------- Bloc contact ---------- */

.bloc-contact {
  background: linear-gradient(135deg, var(--bleu-fonce), var(--bleu));
  color: #fff; border-radius: calc(var(--rayon) + 8px); padding: clamp(28px, 5vw, 56px);
  display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center;
}
.bloc-contact h2 { color: #fff; }
.bloc-contact p { opacity: .9; margin: 0; }
@media (max-width: 760px) { .bloc-contact { grid-template-columns: 1fr; } }

.infos-contact { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.infos-contact li { display: flex; gap: 14px; align-items: flex-start; }
.infos-contact .icone {
  flex: none; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--ciel); color: var(--bleu);
}
.infos-contact .icone svg { width: 22px; height: 22px; }
.infos-contact small { display: block; color: var(--texte-doux); font-size: .85rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.infos-contact a { font-weight: 600; text-decoration: none; word-break: break-word; }

.carte-contact { background: var(--blanc); border: 1px solid var(--bord); border-radius: var(--rayon); padding: clamp(24px, 4vw, 40px); box-shadow: var(--ombre); }
.carte-contact h3 { margin-bottom: 1em; }

/* ---------- Galerie ---------- */

.galerie {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(46%, 220px), 1fr)); gap: 10px;
}
.galerie a {
  display: block; aspect-ratio: 1; overflow: hidden; border-radius: 12px; background: var(--ciel);
}
.galerie img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s, filter .3s; }
.galerie a:hover img { transform: scale(1.06); filter: brightness(1.05); }
@media (min-width: 900px) { .galerie { gap: 14px; } }

.apercu-galerie { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.apercu-galerie a { aspect-ratio: 1; overflow: hidden; border-radius: 12px; }
.apercu-galerie img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.apercu-galerie a:hover img { transform: scale(1.06); }
@media (min-width: 760px) { .apercu-galerie { grid-template-columns: repeat(6, 1fr); } }

/* Visionneuse */
.visionneuse {
  position: fixed; inset: 0; z-index: 200; background: rgba(8, 14, 34, .95);
  display: flex; align-items: center; justify-content: center; padding: 60px 12px;
}
.visionneuse[hidden] { display: none; }
.visionneuse img { max-width: 100%; max-height: 100%; border-radius: 8px; box-shadow: 0 20px 60px rgba(0, 0, 0, .5); object-fit: contain; }
.visionneuse button {
  position: absolute; width: 52px; height: 52px; border-radius: 999px; border: 0;
  background: rgba(255, 255, 255, .14); color: #fff; font-size: 28px; line-height: 1; cursor: pointer;
  display: grid; place-items: center; transition: background .2s;
}
.visionneuse button:hover { background: rgba(255, 255, 255, .3); }
.visionneuse .fermer { top: 12px; right: 12px; }
.visionneuse .precedent { left: 12px; top: 50%; transform: translateY(-50%); }
.visionneuse .suivant { right: 12px; top: 50%; transform: translateY(-50%); }
.visionneuse .compteur { position: absolute; top: 24px; left: 50%; transform: translateX(-50%); color: rgba(255, 255, 255, .8); font-size: .95rem; }
@media (max-width: 600px) {
  .visionneuse .precedent, .visionneuse .suivant { top: auto; bottom: 14px; transform: none; }
}

/* ---------- Pied de page ---------- */

.pied { background: var(--bleu-nuit); color: rgba(255, 255, 255, .78); padding-block: 56px 28px; font-size: .98rem; }
.pied a { color: #fff; text-decoration: none; }
.pied a:hover { color: #ffb3b6; }
.pied-grille { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 36px; }
@media (max-width: 760px) { .pied-grille { grid-template-columns: 1fr; gap: 28px; } }
.pied-logo { background: #fff; border-radius: 14px; padding: 10px 14px; display: inline-block; margin-bottom: 14px; }
.pied-logo img { height: 64px; width: auto; }
.pied h2 { color: #fff; font-size: 1rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 14px; }
.pied ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.pied-bas { border-top: 1px solid rgba(255, 255, 255, .12); margin-top: 40px; padding-top: 22px; font-size: .88rem; text-align: center; }

/* ---------- Animations discrètes ---------- */

@media (prefers-reduced-motion: no-preference) {
  .js .apparait { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
  .js .apparait.visible { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}