/* ==========================================================
   BienVu — Design system
   Palette : chaleureuse / premium / immobilier
   Typo : Fraunces (display, caractère) + Inter (UI/body) + IBM Plex Mono (data/scores)
   ========================================================== */

:root {
  /* Couleurs */
  --bv-fond:        #FBF8F4;
  --bv-blanc:       #FFFFFF;
  --bv-orange:      #FF6A1A;
  --bv-orange-deep: #E24E00;
  --bv-orange-pale: #FFE7D6;
  --bv-encre:       #1E1C1A;
  --bv-charbon:     #4A463F;
  --bv-ligne:       #ECE4D8;
  --bv-vert-ok:     #2F7A4F;

  /* Typo */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: 'IBM Plex Mono', Menlo, monospace;

  /* Rythme */
  --rayon: 18px;
  --rayon-sm: 10px;
  --ombre: 0 10px 30px rgba(30, 28, 26, 0.07);
  --ombre-forte: 0 20px 50px rgba(30, 28, 26, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bv-fond);
  color: var(--bv-encre);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--bv-encre);
  line-height: 1.12;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}

p { line-height: 1.65; color: var(--bv-charbon); }

a { color: inherit; text-decoration: none; }

.container-bv {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Focus visible clavier — accessibilité */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--bv-orange);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ---------------------------------------------------------
   Boutons
   --------------------------------------------------------- */
.btn-bv {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 14px 26px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn-bv:hover { transform: translateY(-2px); }

.btn-bv--primaire {
  background: var(--bv-orange);
  color: #fff;
  box-shadow: 0 8px 22px rgba(255, 106, 26, 0.35);
}
.btn-bv--primaire:hover { background: var(--bv-orange-deep); color: #fff; }

.btn-bv--fantome {
  background: transparent;
  border-color: var(--bv-encre);
  color: var(--bv-encre);
}
.btn-bv--fantome:hover { background: var(--bv-encre); color: #fff; }

.btn-bv--clair {
  background: #fff;
  color: var(--bv-encre);
  box-shadow: var(--ombre);
}

.btn-bv--large { padding: 17px 34px; font-size: 1.05rem; }
.btn-bv--full { width: 100%; justify-content: center; }

/* ---------------------------------------------------------
   Navbar
   --------------------------------------------------------- */
.bv-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(251, 248, 244, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bv-ligne);
}
.bv-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
.bv-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--bv-encre);
}
.bv-logo__point { color: var(--bv-orange); }

.bv-nav__liens {
  display: flex;
  align-items: center;
  gap: 32px;
  font-weight: 500;
  font-size: 0.95rem;
}
.bv-nav__liens a { color: var(--bv-charbon); transition: color .15s; }
.bv-nav__liens a:hover { color: var(--bv-orange); }

.bv-nav__actions { display: flex; align-items: center; gap: 12px; }

.bv-burger { display: none; background: none; border: none; font-size: 1.6rem; cursor: pointer; }

@media (max-width: 900px) {
  .bv-nav__liens { display: none; }
  .bv-burger { display: block; }
}

/* ---------------------------------------------------------
   Hero + slider avant/après (élément signature)
   --------------------------------------------------------- */
.bv-hero {
  padding: 64px 0 40px;
}
.bv-hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 980px) {
  .bv-hero__grid { grid-template-columns: 1fr; gap: 40px; }
}

.bv-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bv-orange-pale);
  color: var(--bv-orange-deep);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.bv-hero h1 {
  font-size: clamp(2.3rem, 4.2vw, 3.6rem);
  font-weight: 500;
}
.bv-hero h1 em {
  font-style: italic;
  color: var(--bv-orange);
}

.bv-hero__texte {
  font-size: 1.15rem;
  max-width: 46ch;
  margin-bottom: 32px;
}

.bv-hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }

.bv-hero__reassurance {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--bv-charbon);
}
.bv-hero__reassurance span { display: flex; align-items: center; gap: 6px; }

/* --- Slider avant / après --- */
.bv-slider {
  position: relative;
  aspect-ratio: 4 / 3.1;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--ombre-forte);
  user-select: none;
  touch-action: pan-y;
}
.bv-slider__scene { position: absolute; inset: 0; }
.bv-slider__apres { background: linear-gradient(160deg, #FFF3E8 0%, #FBF8F4 60%); }
.bv-slider__avant {
  background: linear-gradient(160deg, #E9E4DA 0%, #D9D2C4 100%);
  position: absolute; inset: 0;
  clip-path: inset(0 50% 0 0);
}
.bv-slider__tag {
  position: absolute;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  background: rgba(30,28,26,.78);
  color: #fff;
  padding: 6px 12px;
  border-radius: 999px;
}
.bv-slider__tag--avant { left: 18px; }
.bv-slider__tag--apres { right: 18px; background: var(--bv-orange); }

.bv-slider__poignee {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 3px;
  background: #fff;
  transform: translateX(-50%);
  cursor: ew-resize;
}
.bv-slider__bouton {
  position: absolute;
  top: 50%; left: 50%;
  width: 46px; height: 46px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--ombre);
  color: var(--bv-orange);
  font-size: 1.1rem;
}

.bv-slider__score {
  position: absolute;
  bottom: 18px; left: 18px; right: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(6px);
  border-radius: 14px;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.bv-slider__score b { font-size: 1.05rem; color: var(--bv-orange-deep); }

/* Silhouette de pièce en SVG (dessinée en flat-design dans le HTML) */
.bv-piece-svg { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ---------------------------------------------------------
   Bandeau logos / preuve sociale
   --------------------------------------------------------- */
.bv-preuve {
  padding: 30px 0;
  border-top: 1px solid var(--bv-ligne);
  border-bottom: 1px solid var(--bv-ligne);
  text-align: center;
}
.bv-preuve p {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--bv-charbon);
  margin-bottom: 18px;
}
.bv-preuve__mots {
  display: flex;
  justify-content: center;
  gap: 44px;
  flex-wrap: wrap;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: #C9C1B3;
}

/* ---------------------------------------------------------
   Sections génériques
   --------------------------------------------------------- */
.bv-section { padding: 96px 0; }
.bv-section--alt { background: var(--bv-blanc); }
.bv-section__tete { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.bv-section__tete h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 500; }

/* Grille de fonctionnalités */
.bv-grille-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
@media (max-width: 900px) { .bv-grille-3 { grid-template-columns: 1fr; } }

.bv-carte {
  background: var(--bv-blanc);
  border: 1px solid var(--bv-ligne);
  border-radius: var(--rayon);
  padding: 30px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.bv-carte:hover { transform: translateY(-4px); box-shadow: var(--ombre); }

.bv-carte__icone {
  width: 46px; height: 46px;
  border-radius: 13px;
  background: var(--bv-orange-pale);
  color: var(--bv-orange-deep);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.bv-carte h3 { font-size: 1.15rem; font-weight: 600; font-family: var(--font-body); }
.bv-carte p { font-size: 0.95rem; margin-bottom: 0; }

/* Étapes numérotées (vrai processus séquentiel -> numérotation justifiée) */
.bv-etapes {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 14px;
}
@media (max-width: 1100px) { .bv-etapes { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 640px) { .bv-etapes { grid-template-columns: repeat(2, 1fr); } }

.bv-etape {
  background: var(--bv-blanc);
  border: 1px solid var(--bv-ligne);
  border-radius: var(--rayon-sm);
  padding: 20px 16px;
  text-align: center;
}
.bv-etape__num {
  font-family: var(--font-mono);
  color: var(--bv-orange);
  font-size: 0.85rem;
  margin-bottom: 10px;
  display: block;
}
.bv-etape span.label { font-size: 0.86rem; font-weight: 600; }

/* Bloc "Score BienVu" illustratif */
.bv-score-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--bv-encre);
  color: #fff;
  border-radius: 28px;
  padding: 56px;
}
@media (max-width: 900px) { .bv-score-demo { grid-template-columns: 1fr; padding: 36px 26px; } }
.bv-score-demo h2 { color: #fff; }
.bv-score-demo p { color: #C9C4B8; }
.bv-score-jauge {
  background: #2A2724;
  border-radius: 20px;
  padding: 30px;
}
.bv-score-ligne { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; font-family: var(--font-mono); }
.bv-score-barre { height: 10px; border-radius: 999px; background: #3A362F; overflow: hidden; margin-bottom: 26px; }
.bv-score-barre__remplissage { height: 100%; border-radius: 999px; }

/* ---------------------------------------------------------
   Double CTA pro / particulier
   --------------------------------------------------------- */
.bv-double-cta { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
@media (max-width: 900px) { .bv-double-cta { grid-template-columns: 1fr; } }

.bv-cta-carte {
  border-radius: 22px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.bv-cta-carte--pro { background: var(--bv-encre); color: #fff; }
.bv-cta-carte--particulier { background: var(--bv-orange-pale); color: var(--bv-encre); }
.bv-cta-carte h3 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 500; }
.bv-cta-carte--pro p { color: #C9C4B8; }
.bv-cta-carte__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.bv-cta-carte--pro .bv-cta-carte__badge { background: rgba(255,255,255,.12); color: #fff; }
.bv-cta-carte--particulier .bv-cta-carte__badge { background: rgba(226,78,0,.14); color: var(--bv-orange-deep); }

.bv-cta-carte ul { list-style: none; padding: 0; margin: 20px 0 28px; }
.bv-cta-carte li { display: flex; gap: 10px; margin-bottom: 10px; font-size: 0.95rem; }
.bv-cta-carte--pro li { color: #E4E0D6; }

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */
.bv-footer { background: var(--bv-encre); color: #C9C4B8; padding: 64px 0 28px; }
.bv-footer h4 { color: #fff; font-family: var(--font-body); font-size: 0.95rem; margin-bottom: 16px; }
.bv-footer a { color: #C9C4B8; }
.bv-footer a:hover { color: var(--bv-orange); }
.bv-footer__grille { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 36px; margin-bottom: 48px; }
@media (max-width: 900px) { .bv-footer__grille { grid-template-columns: 1fr 1fr; } }
.bv-footer__grille ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 0.9rem; }
.bv-footer__bas {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
}
.bv-footer .bv-logo { color: #fff; }

/* ==========================================================
   PAGE INSCRIPTION
   ========================================================== */
.bv-inscription {
  padding: 56px 0 100px;
}
.bv-inscription__wrap {
  max-width: 620px;
  margin: 0 auto;
  background: var(--bv-blanc);
  border: 1px solid var(--bv-ligne);
  border-radius: 24px;
  padding: 44px;
  box-shadow: var(--ombre);
}
@media (max-width: 640px) { .bv-inscription__wrap { padding: 28px; } }

.bv-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bv-fond);
  border: 1px solid var(--bv-ligne);
  border-radius: 999px;
  padding: 5px;
  margin-bottom: 34px;
}
.bv-switch a {
  text-align: center;
  padding: 11px 0;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--bv-charbon);
}
.bv-switch a.actif { background: var(--bv-orange); color: #fff; }

.bv-champ { margin-bottom: 20px; }
.bv-champ label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 7px; }
.bv-champ .aide { font-size: 0.8rem; color: #8A8579; margin-top: 6px; }
.bv-champ input[type="text"],
.bv-champ input[type="email"],
.bv-champ input[type="tel"],
.bv-champ input[type="password"],
.bv-champ select {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--bv-ligne);
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 0.96rem;
  background: var(--bv-fond);
  transition: border-color .15s;
}
.bv-champ input:focus, .bv-champ select:focus { border-color: var(--bv-orange); background: #fff; outline: none; }

.bv-champ--duo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 520px) { .bv-champ--duo { grid-template-columns: 1fr; } }

.bv-check { display: flex; align-items: flex-start; gap: 10px; font-size: 0.88rem; color: var(--bv-charbon); margin-bottom: 20px; }
.bv-check input { margin-top: 3px; }

/* --- Captcha puzzle à glisser --- */
.bv-captcha { margin-bottom: 24px; }
.bv-captcha__label { font-size: 0.85rem; font-weight: 600; margin-bottom: 10px; display: block; }
.bv-captcha__piste {
  position: relative;
  height: 56px;
  background: var(--bv-fond);
  border: 1.5px solid var(--bv-ligne);
  border-radius: 14px;
  overflow: hidden;
}
.bv-captcha__cible {
  position: absolute;
  top: 4px; bottom: 4px;
  width: 50px;
  border-radius: 10px;
  background: var(--bv-orange-pale);
  border: 2px dashed var(--bv-orange);
}
.bv-captcha__piece {
  position: absolute;
  top: 4px; bottom: 4px;
  left: 4px;
  width: 50px;
  border-radius: 10px;
  background: var(--bv-encre);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: grab;
  font-size: 1.1rem;
  transition: background .15s;
}
.bv-captcha__piece:active { cursor: grabbing; }
.bv-captcha__piece.valide { background: var(--bv-vert-ok); }
.bv-captcha__texte {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; color: #A39D8E;
  pointer-events: none;
}

.bv-alerte { padding: 14px 18px; border-radius: 12px; font-size: 0.9rem; margin-bottom: 22px; }
.bv-alerte--erreur { background: #FDECEA; color: #B3261E; }
.bv-alerte--succes { background: #E7F5EC; color: var(--bv-vert-ok); }

/* Utilitaires */
.txt-centre { text-align: center; }
.mt-0 { margin-top: 0; }