/* FOREA — forage d'eau & forage géothermique, Crachier (Isère) */

:root{
  --nuit: #0a2033;
  --nuit-2: #0d2b44;
  --petrole: #124a5e;
  --petrole-2: #1a6178;
  --vert: #3f9c81;
  --vert-clair: #5fb99b;
  --blanc: #f6f9f8;
  --blanc-2: #eef3f2;
  --gris: #5b6b73;
  --gris-clair: #c9d3d4;
  --encre: #0c1b26;

  --serif: "Fraunces", Georgia, serif;
  --sans: "Work Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius: 10px;
  --radius-lg: 18px;
  --shadow: 0 10px 30px -14px rgba(10, 32, 51, 0.35);
  --shadow-lg: 0 18px 46px -18px rgba(10, 32, 51, 0.45);

  --container: 1160px;
  --section-pad: 64px;
}

@media (max-width: 640px){
  :root{ --section-pad: 40px; }
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{ margin: 0; }

.js .reveal{ opacity: 0; transform: translateY(18px); }
.reveal{ transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce){
  .js .reveal{ opacity: 1; transform: none; }
  .reveal{ transition: none; }
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}

body{
  font-family: var(--sans);
  color: var(--encre);
  background: var(--blanc);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4{
  font-family: var(--serif);
  color: var(--nuit);
  margin: 0 0 .5em;
  line-height: 1.15;
}

h2{ font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.4rem); }
h3{ font-size: clamp(1.15rem, 1rem + .6vw, 1.4rem); }

p{ margin: 0 0 1em; color: var(--gris); }
p:last-child{ margin-bottom: 0; }

a{ color: inherit; }

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--vert);
  margin-bottom: .6em;
}
.eyebrow::before{
  content: "";
  width: 22px;
  height: 1.5px;
  background: var(--vert);
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }

.btn-primary{
  background: var(--vert);
  color: #fff;
  box-shadow: 0 10px 24px -10px rgba(63,156,129,0.55);
}
.btn-primary:hover{ background: var(--vert-clair); }

.btn-outline{
  background: transparent;
  border-color: rgba(246,249,248,0.5);
  color: var(--blanc);
}
.btn-outline:hover{ background: rgba(246,249,248,0.12); }

.btn-outline.dark{
  border-color: rgba(10,32,51,0.25);
  color: var(--nuit);
}
.btn-outline.dark:hover{ background: rgba(10,32,51,0.06); }

section{ scroll-margin-top: 78px; }

/* ---------- header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,32,51,0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--blanc);
}
.brand img{ width: 38px; height: 38px; }
.brand-name{
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: .02em;
  color: #fff;
}
.brand-tag{
  display: block;
  font-family: var(--sans);
  font-size: .62rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--vert-clair);
  margin-top: 1px;
}

.nav{
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav a{
  color: rgba(246,249,248,0.85);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 500;
  white-space: nowrap;
}
.nav a:hover{ color: #fff; }
.nav-cta{ display: flex; align-items: center; gap: 12px; }

.burger{
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #fff;
}
.burger svg{ width: 24px; height: 24px; }

@media (max-width: 900px){
  .nav-links{ display: none; }
  .nav-cta .btn-outline{ display: none; }
  .burger{ display: inline-flex; }
  .nav{ gap: 12px; }
}

.mobile-menu{
  display: none;
  flex-direction: column;
  gap: 2px;
  background: var(--nuit-2);
  padding: 8px 24px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu.is-open{ display: flex; }
.mobile-menu a{
  color: rgba(246,249,248,0.9);
  text-decoration: none;
  font-size: .95rem;
  padding: 11px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mobile-menu .btn{ margin-top: 12px; }

/* ---------- hero ---------- */
.hero{
  position: relative;
  background:
    radial-gradient(ellipse at 78% 8%, rgba(63,156,129,0.16), transparent 55%),
    linear-gradient(160deg, var(--nuit) 0%, var(--nuit-2) 55%, var(--petrole) 130%);
  color: var(--blanc);
  padding: 56px 0 60px;
  overflow: hidden;
}
.hero::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(180deg, rgba(255,255,255,0.035) 0 1px, transparent 1px 34px);
  pointer-events: none;
}
.hero .container{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 40px;
  align-items: center;
  position: relative;
}
.hero-badge{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--vert-clair);
  background: rgba(63,156,129,0.14);
  border: 1px solid rgba(63,156,129,0.3);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.hero h1{
  color: #fff;
  font-size: clamp(2rem, 1.5rem + 2.2vw, 2.9rem);
  margin-bottom: .38em;
}
.hero h1 em{
  font-style: normal;
  color: var(--vert-clair);
}
.hero-lead{
  color: rgba(246,249,248,0.82);
  font-size: 1.05rem;
  max-width: 46ch;
  margin-bottom: 1.6em;
}
.hero-cta{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}
.hero-meta{
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: .85rem;
  color: rgba(246,249,248,0.7);
}
.hero-meta span{ display: flex; align-items: center; gap: 7px; }
.hero-meta svg{ width: 15px; height: 15px; color: var(--vert-clair); flex-shrink: 0; }

.hero-art{
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-art svg{ width: 100%; height: auto; max-width: 420px; }

/* ---------- generic section spacing ---------- */
.section{ padding: var(--section-pad) 0; }
.section-head{
  max-width: 640px;
  margin: 0 0 34px;
}
.section-head.center{ margin-inline: auto; text-align: center; }
.section-alt{ background: var(--blanc-2); }

/* ---------- qui sommes-nous ---------- */
.about{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-art svg{ width: 100%; height: auto; }
.about-text h2{ margin-bottom: .5em; }

/* ---------- métiers ---------- */
.metier{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
  padding: 40px 0;
}
.metier + .metier{
  border-top: 1px solid var(--gris-clair);
}
.metier.reverse{ grid-template-columns: 1fr 1fr; }
.metier.reverse .metier-art{ order: 2; }
.metier.reverse .metier-text{ order: 1; }
.metier-art svg{ width: 100%; height: auto; }
.metier-tag{
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--petrole-2);
  background: rgba(18,74,94,0.08);
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.metier-tag.vert{
  color: #2f7a63;
  background: rgba(63,156,129,0.1);
}
.metier ul{
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}
.metier li{
  display: flex;
  gap: 10px;
  font-size: .92rem;
  color: var(--gris);
}
.metier li svg{
  width: 16px; height: 16px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--vert);
}

@media (max-width: 780px){
  .metier, .metier.reverse{ grid-template-columns: 1fr; gap: 22px; }
  .metier.reverse .metier-art{ order: 1; }
  .metier.reverse .metier-text{ order: 2; }
  .metier{ padding: 30px 0; }
}

/* ---------- publics ---------- */
.publics{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.public-card{
  background: #fff;
  border: 1px solid var(--gris-clair);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  text-align: left;
}
.public-card svg{ width: 30px; height: 30px; color: var(--vert); margin-bottom: 12px; }
.public-card h3{ margin-bottom: .35em; font-size: 1.05rem; }
.public-card p{ font-size: .9rem; }

@media (max-width: 780px){
  .publics{ grid-template-columns: 1fr; }
}

/* ---------- prestations ---------- */
.services-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.service-card{
  background: linear-gradient(160deg, var(--nuit) 0%, var(--petrole) 150%);
  color: var(--blanc);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  position: relative;
  overflow: hidden;
}
.service-card svg{ width: 30px; height: 30px; color: var(--vert-clair); margin-bottom: 14px; }
.service-card h3{ color: #fff; font-size: 1rem; margin-bottom: .4em; }
.service-card p{ color: rgba(246,249,248,0.72); font-size: .86rem; }

@media (max-width: 980px){
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px){
  .services-grid{ grid-template-columns: 1fr; }
}

/* ---------- galerie ---------- */
.gallery-note{
  font-size: .78rem;
  color: var(--gris);
  font-style: italic;
  margin: -18px 0 26px;
}
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.gallery-item{
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--nuit);
}
.gallery-item svg{ width: 100%; height: 100%; }
.gallery-item span{
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 12px 9px;
  font-size: .74rem;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(0deg, rgba(10,32,51,0.88), transparent);
}

@media (max-width: 980px){
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
}

/* ---------- pourquoi ---------- */
.why-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.why-card{ padding: 4px 2px; }
.why-card .num{
  font-family: var(--serif);
  font-size: 1.6rem;
  color: var(--vert);
  display: block;
  margin-bottom: 8px;
}
.why-card h3{ font-size: 1rem; margin-bottom: .35em; }
.why-card p{ font-size: .88rem; }

@media (max-width: 980px){
  .why-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px){
  .why-grid{ grid-template-columns: 1fr; }
}

/* ---------- certifications ---------- */
.certs{
  background: linear-gradient(135deg, var(--nuit) 0%, var(--petrole) 100%);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: center;
}
.certs-badges{
  display: flex;
  gap: 16px;
}
.cert-badge{
  width: 84px; height: 84px;
  border-radius: 50%;
  background: rgba(246,249,248,0.06);
  border: 1.5px solid rgba(95,185,155,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cert-badge svg{ width: 42px; height: 42px; color: var(--vert-clair); }
.certs-text h3{ color: #fff; margin-bottom: .3em; font-size: 1.1rem; }
.certs-text p{ color: rgba(246,249,248,0.78); font-size: .92rem; margin-bottom: .3em; }
.certs-text .certs-list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.certs-list span{
  font-size: .76rem;
  font-weight: 600;
  color: var(--nuit);
  background: var(--vert-clair);
  padding: 5px 12px;
  border-radius: 999px;
}

@media (max-width: 680px){
  .certs{ grid-template-columns: 1fr; text-align: center; padding: 28px 22px; }
  .certs-badges{ justify-content: center; }
  .certs-list{ justify-content: center; }
}

/* ---------- zone ---------- */
.zone{
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 40px;
  align-items: center;
}
.zone-map svg{ width: 100%; height: auto; max-width: 320px; margin: 0 auto; display: block; }
.zone-text .btn{ margin-top: 6px; }

@media (max-width: 780px){
  .zone{ grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .zone-map svg{ margin: 0 auto; }
}

/* ---------- déroulement ---------- */
.steps{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
.steps::before{
  content: "";
  position: absolute;
  top: 26px;
  left: 12%;
  right: 12%;
  height: 1.5px;
  background: repeating-linear-gradient(90deg, var(--gris-clair) 0 8px, transparent 8px 14px);
}
.step{ position: relative; text-align: center; }
.step-num{
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--nuit);
  color: var(--vert-clair);
  font-family: var(--serif);
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  position: relative;
  z-index: 1;
}
.step h3{ font-size: 1rem; margin-bottom: .3em; }
.step p{ font-size: .87rem; }

@media (max-width: 780px){
  .steps{ grid-template-columns: 1fr; gap: 28px; }
  .steps::before{ display: none; }
}

/* ---------- contact ---------- */
.contact{
  background: linear-gradient(160deg, var(--nuit) 0%, var(--nuit-2) 60%, var(--petrole) 140%);
  color: var(--blanc);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 36px;
  align-items: center;
}
.contact h2{ color: #fff; }
.contact-lead{ color: rgba(246,249,248,0.78); max-width: 42ch; }
.contact-cta{ display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
.contact-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.contact-list li{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: .95rem;
  color: rgba(246,249,248,0.92);
}
.contact-list a{ color: inherit; text-decoration: none; }
.contact-list a:hover{ text-decoration: underline; }
.contact-list svg{ width: 19px; height: 19px; color: var(--vert-clair); flex-shrink: 0; margin-top: 2px; }

@media (max-width: 780px){
  .contact{ grid-template-columns: 1fr; padding: 32px 24px; }
}

/* ---------- footer ---------- */
.site-footer{
  background: var(--encre);
  color: rgba(246,249,248,0.65);
  padding: 34px 0 22px;
}
.footer-top{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 18px;
}
.footer-brand{ display: flex; align-items: center; gap: 10px; }
.footer-brand img{ width: 30px; height: 30px; }
.footer-brand span{ font-family: var(--serif); color: #fff; font-size: 1.02rem; }
.footer-links{ display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a{ color: rgba(246,249,248,0.65); text-decoration: none; font-size: .87rem; }
.footer-links a:hover{ color: #fff; }
.footer-bottom{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .78rem;
}

/* ---------- whatsapp float ---------- */
.wa-float{
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 200;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--vert);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 26px -8px rgba(63,156,129,0.6);
  color: #fff;
  text-decoration: none;
  transition: transform .2s ease;
}
.wa-float:hover{ transform: scale(1.07); }
.wa-float svg{ width: 27px; height: 27px; }

@media (max-width: 780px){
  .hero .container{ grid-template-columns: 1fr; }
  .hero-art{ order: -1; max-width: 260px; margin: 0 auto 8px; }
  .about{ grid-template-columns: 1fr; gap: 26px; }
  .about-art{ max-width: 280px; margin: 0 auto; }
}