/* ============================================================
   BEL ENTREPRISES — Feuille de style commune
   ============================================================ */

:root {
  --navy:        #16243f;
  --navy-2:      #1e3356;
  --gold:        #c5923e;
  --gold-2:      #d6a657;
  --green:       #2e6b43;
  --green-2:     #3a8455;
  --bg:          #ffffff;
  --bg-soft:     #faf8f5;
  --bg-soft-2:   #f3f1ec;
  --text:        #25303f;
  --muted:       #5d6776;
  --line:        #e6e2da;
  --shadow:      0 14px 40px rgba(22, 36, 63, .10);
  --shadow-sm:   0 6px 20px rgba(22, 36, 63, .07);
  --radius:      16px;
  --maxw:        1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .serif {
  font-family: 'Playfair Display', Georgia, serif;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.15;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .22em;
  font-size: .72rem;
  font-weight: 700;
  color: var(--gold);
  text-align: center;
  margin-bottom: 14px;
}
.eyebrow.green { color: var(--green); }

.section { padding: 84px 0; }
.section.soft { background: var(--bg-soft); }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  text-align: center;
  max-width: 760px;
  margin: 0 auto 52px;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 10px;
  font-weight: 600;
  font-size: .98rem;
  cursor: pointer;
  border: none;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--gold-2); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-outline { background: transparent; border: 1.5px solid rgba(255,255,255,.6); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--navy);
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo { display: flex; flex-direction: row; align-items: center; gap: 12px; line-height: 1; }
.logo-icon { height: 46px; width: auto; display: block; }
.logo-img { height: 52px; width: auto; display: block; }
.logo .brand { font-family: 'Playfair Display', serif; font-weight: 800; font-size: 1.5rem; color: #fff; letter-spacing: .5px; }
.logo .brand span { color: var(--gold-2); }
.logo .tag { font-size: .62rem; letter-spacing: .28em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }

.nav-links { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav-links a { font-size: .94rem; font-weight: 500; color: #fff; transition: color .15s; }
.nav-links a:hover, .nav-links a.active { color: var(--gold-2); }
.nav-cta { padding: 10px 22px; border-radius: 9px; background: var(--gold); color: #fff !important; }
.nav-cta:hover { background: var(--gold-2); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.nav-toggle span { width: 26px; height: 2px; background: #fff; border-radius: 2px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  background: linear-gradient(120deg, #eef2f8 0%, #f7f4ee 60%, #f1ebe1 100%);
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; padding: 76px 0 70px; }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.3rem); margin-bottom: 22px; }
.hero h1 .gold { color: var(--gold); }
.hero h1 .green { color: var(--green); }
.hero .lead { font-size: 1.1rem; color: var(--muted); max-width: 460px; }
.hero .divider { width: 70px; height: 3px; background: var(--gold); border-radius: 2px; margin: 0 0 26px; }
.hero .divider.green { background: var(--green); }
.hero-visual {
  border-radius: 20px; min-height: 360px;
  background-size: cover; background-position: center;
  box-shadow: var(--shadow);
  position: relative;
}
/* placeholder visuals when no photo */
.hero-visual.ph-people { background: linear-gradient(135deg, #2a3d5e, #44608c); }
.hero-visual.ph-solar  { background: linear-gradient(135deg, #1d3b2a, #3a7d52); }
.hero-visual.ph-ia     { background: linear-gradient(135deg, #14233f, #2a4b7c); }
.hero-visual.ph-immo   { background: linear-gradient(135deg, #2a3d5e, #c5923e); }
.hero-visual .ph-label {
  position: absolute; bottom: 18px; left: 18px; right: 18px;
  color: rgba(255,255,255,.82); font-size: .8rem; letter-spacing: .05em;
}

/* bandeau de réassurance sous le hero */
.trust-bar { background: #fff; border-radius: 18px; box-shadow: var(--shadow); margin-top: -36px; position: relative; z-index: 5; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid .item { display: flex; gap: 14px; align-items: center; padding: 26px 24px; border-right: 1px solid var(--line); }
.trust-grid .item:last-child { border-right: none; }
.trust-grid .ic { color: var(--navy); flex-shrink: 0; }
.trust-grid .ic svg { width: 30px; height: 30px; }
.trust-grid strong { display: block; font-size: .92rem; color: var(--navy); }
.trust-grid small { font-size: .82rem; color: var(--muted); }

/* ============================================================
   CARTES ACTIVITÉS / SERVICES
   ============================================================ */
.cards { display: grid; gap: 26px; }
.cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cards.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform .18s ease, box-shadow .2s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .card-ic { color: var(--gold); margin-bottom: 18px; }
.card.green .card-ic { color: var(--green); }
.card .card-ic svg { width: 40px; height: 40px; }
.card h3 { font-size: 1.25rem; margin-bottom: 4px; }
.card .sub { color: var(--gold); font-weight: 600; font-size: .9rem; margin-bottom: 14px; }
.card.green .sub { color: var(--green); }
.card p { color: var(--muted); font-size: .95rem; }
.card ul { list-style: none; margin-top: 6px; }
.card ul li { position: relative; padding-left: 26px; margin-bottom: 10px; color: var(--text); font-size: .93rem; }
.card ul li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px;
  background: var(--gold); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6L9 17l-5-5' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M20 6L9 17l-5-5' fill='none' stroke='black' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
}
.card.green ul li::before { background: var(--green); }
.card .arrow { margin-top: auto; padding-top: 14px; font-size: .9rem; font-weight: 600; color: var(--green); }
.card-img { display: block; width: auto; height: 158px; object-fit: cover; margin: -30px -26px 20px; border-radius: var(--radius) var(--radius) 0 0; }

/* ============================================================
   POURQUOI NOUS CHOISIR (5 colonnes icônes)
   ============================================================ */
.why-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; text-align: center; }
.why-grid .item { padding: 10px 14px; border-right: 1px solid var(--line); }
.why-grid .item:last-child { border-right: none; }
.why-grid .ic { color: var(--gold); margin-bottom: 12px; }
.why-grid .ic svg { width: 38px; height: 38px; }
.why-grid strong { display: block; color: var(--navy); margin-bottom: 6px; font-size: .98rem; }
.why-grid small { color: var(--muted); font-size: .85rem; }

/* bloc raisons sur fond marine (4 colonnes) */
.reasons-dark { background: var(--navy); border-radius: 20px; padding: 44px 40px; color: #fff; }
.reasons-dark .head { text-align: center; text-transform: uppercase; letter-spacing: .2em; font-size: .74rem; color: var(--gold-2); margin-bottom: 30px; }
.reasons-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.reasons-grid .item { display: flex; flex-direction: column; gap: 8px; }
.reasons-grid .ic { color: var(--gold-2); }
.reasons-grid .ic svg { width: 34px; height: 34px; }
.reasons-grid strong { font-size: 1rem; }
.reasons-grid p { color: rgba(255,255,255,.78); font-size: .88rem; }
.reasons-dark.green-bg { background: var(--green); }
.reasons-dark.green-bg .head, .reasons-dark.green-bg .ic { color: #cdeBd6; color: #b7e3c4; }

/* badges sous hero (page service) */
.badges { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; margin-top: 8px; }
.badge { display: flex; gap: 14px; }
.badge .ic { color: var(--green); flex-shrink: 0; }
.badge.gold .ic { color: var(--gold); }
.badge .ic svg { width: 30px; height: 30px; }
.badge strong { display: block; color: var(--navy); font-size: .98rem; margin-bottom: 2px; }
.badge small { color: var(--muted); font-size: .86rem; }

/* bloc "en chiffres" + arguments */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.facts-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.facts-card h3 { font-size: 1.3rem; margin-bottom: 18px; }
.facts-card .row { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 16px; }
.facts-card .row .ic { color: var(--gold); flex-shrink: 0; }
.facts-card .row .ic svg { width: 24px; height: 24px; }
.facts-card .row p { font-size: .92rem; color: var(--text); }
.arg-list { list-style: none; }
.arg-list li { position: relative; padding-left: 32px; margin-bottom: 16px; color: var(--text); }
.arg-list li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 20px; height: 20px;
  background: var(--green);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='10' fill='black'/%3E%3Cpath d='M17 9l-5.5 6L8 12' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='10' fill='black'/%3E%3Cpath d='M17 9l-5.5 6L8 12' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* logos outils */
.tools { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 40px; opacity: .85; }
.tools span { font-weight: 700; font-size: 1.2rem; color: var(--navy); }
.tools .tool { display: inline-flex; align-items: center; gap: 9px; }
.tools .tool img { height: 26px; width: auto; display: block; }

/* ============================================================
   CTA FINAL
   ============================================================ */
.cta-band {
  border-radius: 20px; padding: 40px 44px; text-align: center; color: #fff;
  background: linear-gradient(120deg, var(--navy), var(--navy-2));
}
.cta-band.green { background: linear-gradient(120deg, #245537, var(--green)); }
.cta-band h2 { color: #fff; font-size: clamp(1.3rem, 2.6vw, 1.9rem); margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,.85); margin-bottom: 22px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
.form-card h2 { font-size: 1.5rem; margin-bottom: 22px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .88rem; font-weight: 600; color: var(--navy); margin-bottom: 7px; }
.field input, .field textarea {
  width: 100%; padding: 13px 14px; border: 1px solid var(--line); border-radius: 9px;
  font-family: inherit; font-size: .95rem; color: var(--text); background: var(--bg-soft);
  transition: border .15s, box-shadow .15s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(197,146,62,.15); background: #fff; }
.field textarea { resize: vertical; min-height: 120px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.checks { display: flex; flex-wrap: wrap; gap: 16px; }
.checks label { display: flex; align-items: center; gap: 8px; font-weight: 500; font-size: .9rem; color: var(--text); cursor: pointer; }
.checks input { width: auto; }
.form-note { font-size: .82rem; color: var(--muted); text-align: center; margin-top: 14px; display: flex; align-items: center; justify-content: center; gap: 6px; }

.contact-info h2 { font-size: 1.5rem; margin-bottom: 22px; }
.info-row { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px; }
.info-row .ic { color: var(--gold); flex-shrink: 0; }
.info-row .ic svg { width: 24px; height: 24px; }
.info-row a, .info-row span { color: var(--text); font-size: .98rem; }
.info-row small { display: block; color: var(--muted); font-size: .85rem; }
.quote { background: var(--bg-soft); border-left: 3px solid var(--gold); border-radius: 10px; padding: 20px 22px; font-style: italic; color: var(--navy); margin: 24px 0; }
.map-embed { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.map-embed iframe { width: 100%; height: 280px; border: 0; display: block; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--navy); color: rgba(255,255,255,.78); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-brand-row { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.footer-icon { height: 42px; width: auto; display: block; }
.site-footer .brand { font-family: 'Playfair Display', serif; font-weight: 800; font-size: 1.4rem; color: #fff; }
.site-footer .brand span { color: var(--gold-2); }
.site-footer p { font-size: .9rem; margin-top: 12px; max-width: 320px; }
.site-footer h4 { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .14em; margin-bottom: 16px; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a, .site-footer ul span { font-size: .92rem; transition: color .15s; }
.site-footer ul a:hover { color: var(--gold-2); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: .82rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { min-height: 260px; order: -1; }
  .cards.cols-3, .cards.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .reasons-grid { grid-template-columns: repeat(2, 1fr); }
  .badges { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid .item:nth-child(2) { border-right: none; }
  .why-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .why-grid .item { border-right: none; }
  .split, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .nav-links { position: fixed; inset: 72px 0 auto 0; background: var(--navy); flex-direction: column; gap: 0; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.12); box-shadow: var(--shadow); transform: translateY(-150%); transition: transform .25s ease; }
  .nav-links.open { transform: translateY(0); }
  .nav-links li { width: 100%; text-align: center; }
  .nav-links li a { display: block; padding: 14px; }
  .nav-toggle { display: flex;