/* ==========================================================================
   BRB Multiservices — feuille de style commune
   Mobile d'abord. Aucune dépendance hors Google Fonts (Archivo).
   ========================================================================== */

:root {
  /* Identité visuelle */
  --navy: #102A4D;          /* couleur principale */
  --navy-dark: #0A1D37;     /* survol des boutons marine */
  --orange: #E8711A;        /* accents, boutons, aplats */
  --orange-text: #C45508;   /* petit texte orange sur fond blanc uniquement */
  --orange-light: #F28C38;  /* texte orange sur fond marine */
  --white: #FFFFFF;
  --offwhite: #F6F4F0;

  /* Usages */
  --text: #2A3A52;
  --text-muted: #47566B;
  --line: #DAD6CE;

  --font: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --radius: 6px;
  --container: 1160px;
  --gutter: 20px;
  --header-h: 68px;
  --logo-h: 40px;
}

@media (min-width: 960px) {
  :root {
    --gutter: 32px;
    --header-h: 84px;
    --logo-h: 50px;
  }
}

/* ---------- Base ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  padding-top: var(--header-h);
  font-family: var(--font);
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
}

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

img { height: auto; }

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--navy);
}

h1 { font-size: clamp(2rem, 7vw, 3.25rem); }
h2 { font-size: clamp(1.625rem, 4.5vw, 2.375rem); }
h3 { font-size: 1.25rem; font-weight: 800; }

p { margin: 0 0 1em; }

a { color: var(--navy); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--orange-text); }

ul { margin: 0; padding: 0; }

strong { font-weight: 800; }

:focus-visible {
  outline: 3px solid var(--orange-text);
  outline-offset: 3px;
}

.on-dark :focus-visible,
.site-footer :focus-visible { outline-color: var(--orange-light); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: .75rem 1rem;
  background: var(--navy);
  color: var(--white);
  font-weight: 800;
  border-radius: var(--radius);
}
.skip-link:focus { top: 12px; color: var(--white); }

.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- Rappel graphique : le « niveau à bulle » du logo ---------- */

.level {
  position: relative;
  display: block;
  width: 64px;
  height: 12px;
  margin: 0 0 1.25rem;
  border-radius: 6px;
  background: var(--orange);
}
.level::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 50%;
  width: 8px;
  height: 8px;
  margin-left: -4px;
  border-radius: 50%;
  background: var(--navy);
}
.level--center { margin-left: auto; margin-right: auto; }
.level--on-orange { background: var(--navy); }
.level--on-orange::after { background: var(--orange); }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 48px;
  padding: .75rem 1.375rem;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn svg { width: 20px; height: 20px; flex: none; }

/* Orange + texte marine : contraste 4,6:1 (AA) */
.btn--primary { background: var(--orange); color: var(--navy); }
.btn--primary:hover { background: var(--orange-light); color: var(--navy); }

.btn--navy { background: var(--navy); color: var(--white); }
.btn--navy:hover { background: var(--navy-dark); color: var(--white); }

.btn--outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn--outline:hover { background: var(--navy); color: var(--white); }

.btn--outline-light { border-color: var(--white); color: var(--white); background: transparent; }
.btn--outline-light:hover { background: var(--white); color: var(--navy); }

.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; }

@media (max-width: 479px) {
  .btn-row .btn { flex: 1 1 100%; }
}

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 100%;
}

.brand { display: block; flex: none; margin-right: auto; }
.brand img {
  /* hauteur fixée : évite tout décalage de mise en page au chargement */
  height: var(--logo-h);
  width: auto;
  aspect-ratio: 1858 / 545;
}

.header-phone .label-long { display: none; }
.header-phone { min-height: 44px; padding: .5rem .75rem; }

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: 0 12px;
  border: 2px solid var(--navy);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 3px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Sans JavaScript, le burger est masqué et le menu reste accessible. */
.no-js .nav-toggle { display: none; }

.site-nav ul { list-style: none; }
.site-nav a {
  display: block;
  font-weight: 700;
  text-decoration: none;
  color: var(--navy);
}
.site-nav a[aria-current="page"] { color: var(--orange-text); }

@media (max-width: 959px) {
  .js .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    background: var(--white);
    border-bottom: 4px solid var(--orange);
    box-shadow: 0 12px 24px rgba(16, 42, 77, .12);
    display: none;
  }
  .js .site-nav.is-open { display: block; }
  .site-nav ul { padding: .5rem var(--gutter) 1rem; }
  .site-nav li + li { border-top: 1px solid var(--line); }
  .site-nav a { padding: 1rem 0; font-size: 1.125rem; }

  .no-js .site-header { position: static; height: auto; }
  .no-js body { padding-top: 0; }
  .no-js .header-inner { flex-wrap: wrap; padding-top: .75rem; padding-bottom: .75rem; }
  .no-js .site-nav { flex: 1 1 100%; }
}

@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .site-nav ul { display: flex; gap: 1.75rem; }
  .site-nav a { position: relative; padding: .5rem 0; }
  .site-nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 3px;
    border-radius: 2px;
    background: var(--orange);
    transform: scaleX(0);
    transition: transform .2s;
  }
  .site-nav a:hover { color: var(--navy); }
  .site-nav a:hover::after,
  .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
  .site-nav a[aria-current="page"] { color: var(--navy); }
  .header-phone { order: 3; padding: .625rem 1.125rem; }
  .header-phone .label-long { display: inline; }
}

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

.section { padding: 3.5rem 0; }
.section--alt { background: var(--offwhite); }
.section--navy { background: var(--navy); color: var(--white); }
.section--navy h2, .section--navy h3 { color: var(--white); }

@media (min-width: 960px) {
  .section { padding: 5.5rem 0; }
}

.section-head { max-width: 680px; margin-bottom: 2.25rem; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--text-muted); font-size: 1.125rem; }

.lead { font-size: 1.1875rem; }

/* ---------- Hero (accueil) ---------- */

.hero {
  background: var(--navy);
  color: var(--white);
  padding: 2.5rem 0 3rem;
}
.hero-grid { display: grid; gap: 2rem; align-items: center; }

.hero-logo {
  height: 64px;
  width: auto;
  aspect-ratio: 1858 / 545;
  margin: 0 0 1.75rem -6px;
}
.hero h1 { color: var(--white); max-width: 16ch; }
.hero-zone {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  margin: 0 0 1.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--orange-light);
}
.hero-zone svg { width: 22px; height: 22px; flex: none; margin-top: 2px; }

.hero-card {
  padding: 1.5rem;
  border: 2px solid rgba(255, 255, 255, .2);
  border-radius: var(--radius);
}
.hero-card h2 { font-size: 1.25rem; color: var(--white); }
.info-list { list-style: none; display: grid; gap: 1rem; }
.info-list li { display: flex; gap: .75rem; align-items: flex-start; }
.info-list svg { width: 22px; height: 22px; flex: none; margin-top: 3px; color: var(--orange-light); }
.info-list .k { display: block; font-size: .875rem; font-weight: 600; color: rgba(255, 255, 255, .8); }
.info-list .v { display: block; font-weight: 800; color: var(--white); }
.info-list a.v { text-decoration: none; }
.info-list a.v:hover { color: var(--orange-light); }

@media (min-width: 960px) {
  .hero { padding: 4.5rem 0 5rem; }
  .hero-grid { grid-template-columns: 1.6fr 1fr; gap: 4rem; }
  .hero-logo { height: 92px; }
  .hero-card { padding: 2rem; }
}

/* ---------- Bandeau de page (pages intérieures) ---------- */

.page-hero {
  background: var(--navy);
  color: var(--white);
  padding: 2.5rem 0;
}
.page-hero h1 { color: var(--white); margin-bottom: .35em; }
.page-hero p { max-width: 640px; margin: 0; font-size: 1.125rem; color: rgba(255, 255, 255, .88); }
@media (min-width: 960px) { .page-hero { padding: 4rem 0; } }

/* ---------- Cartes services ---------- */

.cards { list-style: none; display: grid; gap: 1.25rem; }
@media (min-width: 600px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .cards--4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.75rem 1.5rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--navy);
  border-radius: var(--radius);
  transition: border-color .15s;
}
.card:hover { border-top-color: var(--orange); }
.card p { color: var(--text-muted); }
.card-link {
  margin-top: auto;
  font-weight: 800;
  color: var(--navy);
  text-decoration: none;
}
/* Toute la carte est cliquable, un seul lien pour les lecteurs d'écran */
.card-link::after { content: ""; position: absolute; inset: 0; }
.card-link:hover { color: var(--orange-text); }
.card:focus-within { outline: 3px solid var(--orange-text); outline-offset: 3px; }
.card-link:focus-visible { outline: none; }

.icon-box {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: 1.25rem;
  border-radius: var(--radius);
  background: var(--navy);
  color: var(--orange);
}
.icon-box svg { width: 30px; height: 30px; }

/* ---------- Arguments ---------- */

.features { list-style: none; display: grid; gap: 2rem; }
@media (min-width: 760px) { .features { grid-template-columns: repeat(3, 1fr); gap: 2.5rem; } }
.feature .icon-line {
  display: block;
  width: 40px;
  height: 40px;
  margin-bottom: 1rem;
  color: var(--navy);
}
.feature h3 { margin-bottom: .4em; }
.feature p { color: var(--text-muted); margin: 0; }

/* ---------- Zone d'intervention ---------- */

.zone-grid { display: grid; gap: 2rem; align-items: start; }
@media (min-width: 900px) { .zone-grid { grid-template-columns: 1fr 1fr; gap: 4rem; } }

.chips { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; }
.chips li {
  padding: .45rem .9rem;
  border: 2px solid var(--navy);
  border-radius: 999px;
  font-weight: 700;
  font-size: .9375rem;
  color: var(--navy);
}
.chips li.is-main { background: var(--navy); color: var(--white); }

.zone-box {
  padding: 1.75rem;
  background: var(--offwhite);
  border-left: 6px solid var(--orange);
  border-radius: var(--radius);
}
.zone-box h3 { margin-bottom: 1rem; }

/* ---------- Bandeau d'appel à l'action ---------- */

.cta-band { background: var(--orange); padding: 3rem 0; }
.cta-band h2 { color: var(--navy); margin-bottom: .35em; }
.cta-band p { color: var(--navy); font-weight: 600; font-size: 1.125rem; margin-bottom: 1.5rem; }
.cta-band .btn--outline:hover { background: var(--navy); color: var(--white); }
.cta-band :focus-visible { outline-color: var(--navy); }
@media (min-width: 960px) {
  .cta-band { padding: 4rem 0; }
  .cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 3rem; }
  .cta-inner p { margin-bottom: 0; }
  .cta-inner .btn-row { flex: none; }
}

/* ---------- Page Services ---------- */

.service-block { display: grid; gap: 1.75rem; align-items: center; }
.service-block + .service-block { margin-top: 3.5rem; padding-top: 3.5rem; border-top: 1px solid var(--line); }
.service-block .icon-box { margin-bottom: 1rem; }
.check-list { list-style: none; display: grid; gap: .5rem; margin: 0 0 1.5rem; }
.check-list li { position: relative; padding-left: 1.75rem; }
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: .55em;
  width: 14px; height: 8px;
  border-radius: 4px;
  background: var(--orange);
}
@media (min-width: 900px) {
  .service-block { grid-template-columns: 1fr 1fr; gap: 4rem; }
  .service-block:nth-of-type(even) .service-media { order: -1; }
  .service-block + .service-block { margin-top: 5rem; padding-top: 5rem; }
}

.photo {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--offwhite);
}
.photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }

/* ---------- Réalisations (avant / après) ---------- */

.gallery { list-style: none; display: grid; gap: 1.5rem; }
@media (min-width: 900px) { .gallery { grid-template-columns: repeat(2, 1fr); gap: 2rem; } }

.project {
  margin: 0;
  height: 100%;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.ba { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--line); }
.ba-item { position: relative; margin: 0; background: var(--offwhite); }
.ba-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.ba-label {
  position: absolute;
  top: .625rem;
  left: .625rem;
  padding: .25rem .6rem;
  border-radius: 4px;
  font-size: .8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.ba-label--before { background: var(--navy); color: var(--white); }
.ba-label--after { background: var(--orange); color: var(--navy); }
.project figcaption { padding: 1.25rem 1.5rem 1.5rem; }
.project h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: .25em; }
.project .meta { font-size: .9375rem; font-weight: 700; color: var(--orange-text); margin-bottom: .5em; }
.project p:last-child { margin: 0; color: var(--text-muted); }

/* ---------- Contact ---------- */

.contact-grid { display: grid; gap: 2.5rem; }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 1.5fr 1fr; gap: 4rem; align-items: start; } }

.form { display: grid; gap: 1.25rem; }
.form-row { display: grid; gap: 1.25rem; }
@media (min-width: 600px) { .form-row--2 { grid-template-columns: 1fr 1fr; } }

.field label {
  display: block;
  margin-bottom: .375rem;
  font-weight: 800;
  color: var(--navy);
}
.field .req { color: var(--orange-text); }
.field .hint { display: block; font-weight: 500; font-size: .9375rem; color: var(--text-muted); }

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 52px;
  padding: .75rem 1rem;
  border: 2px solid #8A93A3;
  border-radius: var(--radius);
  background: var(--white);
  font: inherit;
  font-size: 1rem; /* ≥ 16px : pas de zoom automatique sur iOS */
  color: var(--navy);
}
.field textarea { min-height: 160px; resize: vertical; }
.field select {
  appearance: none;
  padding-right: 2.75rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23102A4D' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .875rem center;
  background-size: 20px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--navy);
  outline: 3px solid var(--orange);
  outline-offset: 0;
}
.form-note { font-size: .9375rem; color: var(--text-muted); margin: 0; }
.hp-field { display: none; }

.contact-aside {
  padding: 1.75rem;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
}
.contact-aside h2 { color: var(--white); font-size: 1.5rem; }
.contact-aside .btn { width: 100%; margin-bottom: 1.5rem; }

/* ---------- Pages texte (mentions légales) ---------- */

.prose { max-width: 760px; }
.prose h2 { font-size: 1.625rem; margin-top: 2.5rem; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 1.125rem; margin-top: 1.75rem; }
.prose ul { padding-left: 1.25rem; margin: 0 0 1em; }
.prose li { margin-bottom: .35em; }
.prose dl { margin: 0 0 1em; }
.prose dt { font-weight: 800; color: var(--navy); }
.prose dd { margin: 0 0 .75em; }
.toc {
  margin: 0 0 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--offwhite);
  border-radius: var(--radius);
}
.toc p { font-weight: 800; color: var(--navy); margin-bottom: .5em; }
.toc ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }

/* ---------- Footer ---------- */

.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, .88);
  padding: 3.5rem 0 1.5rem;
  font-size: 1rem;
}
.site-footer a { color: var(--white); text-decoration: none; }
.site-footer a:hover { color: var(--orange-light); text-decoration: underline; }

.footer-grid { display: grid; gap: 2.25rem; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem; } }

.footer-logo { height: 56px; width: auto; aspect-ratio: 1858 / 545; margin: 0 0 1.25rem -4px; }
.footer-title {
  margin: 0 0 1rem;
  font-size: .875rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--orange-light);
}
.footer-list { list-style: none; display: grid; gap: .625rem; }
.footer-list .k { color: rgba(255, 255, 255, .7); font-weight: 600; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, .18);
  font-size: .9375rem;
  color: rgba(255, 255, 255, .78);
}
.footer-bottom p { margin: 0; }
.footer-bottom ul { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }

/* ---------- Bouton « Appeler » flottant (mobile) ---------- */

.call-fab {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  min-height: 56px;
  font-size: 1.0625rem;
  box-shadow: 0 6px 20px rgba(16, 42, 77, .35);
}

@media (max-width: 959px) {
  /* le footer laisse la place au bouton flottant */
  .site-footer { padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px)); }
}
@media (min-width: 960px) {
  .call-fab { display: none; }
}

/* ---------- Divers ---------- */

.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}
.field .hint-inline { font-weight: 500; color: var(--text-muted); }

/* Adresses longues (email) : retour à la ligne plutôt que débordement */
.hero-grid > *,
.contact-grid > *,
.footer-grid > *,
.info-list li > div { min-width: 0; }
.info-list .v,
.footer-list a,
.prose a { overflow-wrap: anywhere; }

/* Grilles : 6 prestations, 4 engagements */
@media (min-width: 1040px) { .cards--3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 600px) { .features--4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .features--4 { grid-template-columns: repeat(4, 1fr); } }

.hero-lead { font-size: 1.1875rem; color: rgba(255, 255, 255, .9); max-width: 34em; margin-bottom: 1rem; }

/* Questions fréquentes (details/summary, sans JavaScript) */
.faq { display: grid; gap: .75rem; max-width: 820px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.faq-item summary {
  position: relative;
  padding: 1.125rem 3rem 1.125rem 1.25rem;
  font-weight: 800;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--orange-text);
}
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin: 0; padding: 0 1.25rem 1.25rem; color: var(--text-muted); }

/* Lien dans un paragraphe du footer : souligné pour se distinguer du texte */
.site-footer p a { text-decoration: underline; }