/* =========================================================
   Christophe Pierroz SA — feuille de style
   Concept : l'eau (bleu profond / cyan) + le cuivre des conduites
   Display : Space Grotesk · Texte : Inter · Technique : Space Mono
   ========================================================= */

:root{
  --abyss:#0A2540;
  --deep:#0E3A5C;
  --water:#1BA8CE;
  --water-2:#5FD0E8;
  --copper:#C2703D;
  --copper-2:#E08B52;
  --mist:#F4F8FB;
  --paper:#FFFFFF;
  --ink:#14202E;
  --ink-soft:#51677A;
  --line:#DCE6EE;

  --font-display:'Space Grotesk',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'Space Mono','SFMono-Regular',monospace;

  --shell:1160px;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 18px 50px -28px rgba(10,37,64,.45);
  --shadow-sm:0 8px 24px -16px rgba(10,37,64,.4);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}

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

.skip-link{
  position:absolute;left:-999px;top:0;z-index:200;background:var(--copper);
  color:#fff;padding:10px 16px;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

:focus-visible{outline:3px solid var(--copper-2);outline-offset:2px;border-radius:4px;}

/* ---------- Typographie utilitaire ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--water);display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;
}
.eyebrow-light{color:var(--water-2);}
.eyebrow-dot{width:8px;height:8px;border-radius:50%;background:var(--copper);box-shadow:0 0 0 4px rgba(194,112,61,.18);}

.section-title{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.1;letter-spacing:-.02em;margin:0;
  color:var(--abyss);
}
.section-title.light{color:#fff;}

/* ---------- Boutons ---------- */
.btn{
  --b:var(--copper);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-display);font-weight:600;font-size:.98rem;
  padding:14px 26px;border-radius:999px;border:2px solid transparent;
  text-decoration:none;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,color .18s;
  line-height:1;
}
.btn:hover{transform:translateY(-2px);}
.btn-copper{background:var(--copper);color:#fff;box-shadow:0 12px 30px -14px rgba(194,112,61,.8);}
.btn-copper:hover{background:var(--copper-2);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-line{background:transparent;color:var(--abyss);border-color:var(--line);}
.btn-line:hover{border-color:var(--water);color:var(--water);}
.btn.full{width:100%;}
.btn.sm{padding:10px 18px;font-size:.88rem;}
.btn.xs{padding:8px 14px;font-size:.8rem;}

/* =========================================================
   EN-TÊTE / NAVIGATION
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--abyss);}
.brand-mark{color:var(--water);display:grid;place-items:center;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:-.01em;}
.brand-sa{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);}

.site-nav{display:flex;align-items:center;gap:6px;}
.site-nav a{
  text-decoration:none;color:var(--ink);font-weight:500;font-size:.95rem;
  padding:10px 14px;border-radius:8px;transition:color .15s,background .15s;
}
.site-nav a:hover{color:var(--water);}
.site-nav a.is-active{color:var(--water);}
.nav-call{
  margin-left:8px;background:var(--abyss);color:#fff !important;border-radius:999px !important;
  font-family:var(--font-mono);font-size:.82rem !important;display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px !important;
}
.nav-call:hover{background:var(--deep);}
.nav-call svg{flex:none;}

.nav-toggle,.nav-burger{display:none;}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 90% at 80% -10%,var(--deep) 0%,var(--abyss) 60%);
  color:#fff;
}
/* Photo de l'entreprise en fond, voilée de bleu pour garder le texte lisible.
   Voile plus dense à gauche (sous le titre), plus léger à droite (la maison reste visible). */
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:
    linear-gradient(180deg,
      rgba(10,37,64,0) 0%,
      rgba(10,37,64,0) 50%,
      var(--abyss) 66%,
      var(--abyss) 100%),
    linear-gradient(95deg,
      rgba(10,37,64,.95) 0%,
      rgba(11,45,72,.88) 42%,
      rgba(14,58,92,.82) 100%),
    url('../img/fond.jpg');
  background-size:cover;
  background-position:center 32%;
}
.hero-flow{position:absolute;inset:0;z-index:1;}
.hero-flow svg{width:100%;height:100%;}
.wave{transform-origin:center;}
.wave-1{animation:drift 14s ease-in-out infinite alternate;}
.wave-2{animation:drift 19s ease-in-out infinite alternate-reverse;}
.wave-3{animation:drift 24s ease-in-out infinite alternate;}
@keyframes drift{from{transform:translateX(-22px);}to{transform:translateX(22px);}}

.hero-inner{position:relative;z-index:2;padding-block:clamp(72px,11vw,140px);}
.hero-title{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.7rem,8vw,5.4rem);line-height:.98;letter-spacing:-.03em;margin:0 0 24px;
}
.hero-title-accent{color:var(--water-2);}
.hero-lead{font-size:clamp(1.05rem,2vw,1.25rem);max-width:38ch;color:rgba(255,255,255,.82);margin:0 0 34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:54px;}

.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin:0;padding-top:30px;border-top:1px solid rgba(255,255,255,.16);}
.hero-stats div dt{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--water-2);margin-bottom:4px;}
.hero-stats div dd{margin:0;font-family:var(--font-display);font-weight:600;font-size:1.05rem;}

/* =========================================================
   SECTIONS génériques
   ========================================================= */
.section{padding-block:clamp(64px,9vw,108px);}
.section-head{margin-bottom:48px;max-width:42ch;}
.section-head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;max-width:none;}
.link-arrow{font-family:var(--font-display);font-weight:600;text-decoration:none;color:var(--water);white-space:nowrap;}
.link-arrow:hover{color:var(--copper);}

/* ---------- Présentation de l'entreprise ---------- */
.section-about{background:var(--paper);}
.about-grid{display:grid;grid-template-columns:0.92fr 1.08fr;gap:clamp(28px,5vw,60px);align-items:center;}
.about-photo{
  margin:0;border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;
  background:linear-gradient(135deg,var(--deep),var(--abyss));box-shadow:var(--shadow-sm);
}
.about-photo img{width:100%;height:100%;object-fit:cover;display:block;}
.about-copy .section-title{margin-top:6px;}
.about-lead{color:var(--ink-soft);font-size:1.05rem;line-height:1.7;margin:14px 0 30px;max-width:48ch;}
.about-sub{
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--copper);margin:0 0 18px;
}
.sectors{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;}
.sectors li{display:flex;align-items:center;gap:13px;font-family:var(--font-display);font-weight:600;font-size:.98rem;color:var(--abyss);}
.sector-ic{
  flex:none;display:grid;place-items:center;width:46px;height:46px;border-radius:13px;
  background:var(--mist);border:1px solid var(--line);color:var(--copper);transition:.2s;
}
.sectors li:hover .sector-ic{background:var(--copper);color:#fff;border-color:transparent;}
.sector-ic svg{width:24px;height:24px;}

@media (max-width:860px){
  .about-grid{grid-template-columns:1fr;}
  .about-photo{aspect-ratio:16/10;max-height:360px;}
}
@media (max-width:520px){
  .sectors{grid-template-columns:1fr;}
}

/* ---------- Prestations ---------- */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.service-card{
  position:relative;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius);padding:30px 26px 28px;transition:transform .2s,box-shadow .2s,border-color .2s;
  overflow:hidden;
}
.service-card::before{
  content:"";position:absolute;left:0;top:0;height:100%;width:4px;background:var(--water);
  transform:scaleY(0);transform-origin:top;transition:transform .25s;
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent;}
.service-card:hover::before{transform:scaleY(1);}
.service-num{font-family:var(--font-mono);font-size:.8rem;color:var(--copper);letter-spacing:.1em;}
.service-card h3{font-family:var(--font-display);font-size:1.22rem;margin:14px 0 10px;color:var(--abyss);}
.service-card p{margin:0;color:var(--ink-soft);font-size:.96rem;}

/* ---------- Bande "manière de travailler" ---------- */
.section-pledge{background:radial-gradient(120% 120% at 0% 0%,var(--deep),var(--abyss));color:#fff;}
.pledge-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:54px;align-items:center;}
.pledge-lead{color:rgba(255,255,255,.82);font-size:1.08rem;margin:0 0 26px;max-width:46ch;}
.pledge-list{list-style:none;padding:0;margin:0 0 32px;display:grid;gap:16px;}
.pledge-list li{padding-left:30px;position:relative;color:rgba(255,255,255,.86);}
.pledge-list li::before{
  content:"";position:absolute;left:0;top:.5em;width:13px;height:13px;border-radius:50%;
  border:3px solid var(--copper);
}
.pledge-list strong{color:#fff;}
.pledge-figure{display:grid;place-items:center;}
.drop{animation:drip 2.6s ease-in infinite;}
@keyframes drip{
  0%{transform:translateY(0);opacity:0;}
  20%{opacity:1;}
  70%{transform:translateY(34px);opacity:1;}
  100%{transform:translateY(46px);opacity:0;}
}

/* ---------- Aperçu galerie ---------- */
.teaser-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.teaser-item{margin:0;border-radius:var(--radius);overflow:hidden;position:relative;background:var(--mist);box-shadow:var(--shadow-sm);}
.teaser-item img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .4s;}
.teaser-item:hover img{transform:scale(1.05);}
.teaser-item figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;color:#fff;font-size:.9rem;
  background:linear-gradient(transparent,rgba(10,37,64,.82));
}
.teaser-empty{
  border:1.5px dashed var(--line);border-radius:var(--radius);padding:48px 24px;text-align:center;
  color:var(--ink-soft);display:grid;gap:18px;place-items:center;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--copper);background:linear-gradient(120deg,var(--copper),var(--copper-2));
  border-radius:var(--radius);padding:44px 48px;color:#fff;
  display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;
}
.cta-title{font-family:var(--font-display);font-size:clamp(1.5rem,3vw,2rem);margin:0 0 6px;}
.cta-sub{margin:0;color:rgba(255,255,255,.9);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-copper{background:var(--abyss);box-shadow:none;}
.cta-band .btn-copper:hover{background:var(--deep);}

/* =========================================================
   EN-TÊTES DE PAGE INTÉRIEURE
   ========================================================= */
.page-hero{
  background:radial-gradient(120% 100% at 85% -20%,var(--deep),var(--abyss));
  color:#fff;padding-block:clamp(64px,9vw,110px);
}
.page-hero-sm{padding-block:clamp(54px,7vw,84px);}
.page-title{font-family:var(--font-display);font-weight:700;font-size:clamp(2.1rem,5vw,3.4rem);line-height:1.04;letter-spacing:-.02em;margin:0 0 16px;}
.page-lead{font-size:1.12rem;color:rgba(255,255,255,.82);max-width:50ch;margin:0;}

/* =========================================================
   GALERIE + VISIONNEUSE
   ========================================================= */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.filter{
  font-family:var(--font-mono);font-size:.8rem;letter-spacing:.06em;
  border:1px solid var(--line);background:var(--paper);color:var(--ink-soft);
  padding:8px 16px;border-radius:999px;cursor:pointer;transition:.15s;
}
.filter:hover{border-color:var(--water);color:var(--water);}
.filter.is-active{background:var(--abyss);color:#fff;border-color:var(--abyss);}

.gallery{columns:3;column-gap:18px;}
.gallery-item{
  margin:0 0 18px;break-inside:avoid;border-radius:var(--radius);overflow:hidden;
  position:relative;cursor:pointer;background:var(--mist);box-shadow:var(--shadow-sm);
}
.gallery-item img{width:100%;transition:transform .4s;}
.gallery-item:hover img{transform:scale(1.04);}
.gallery-item figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:30px 14px 12px;color:#fff;font-size:.88rem;
  background:linear-gradient(transparent,rgba(10,37,64,.85));opacity:0;transition:opacity .25s;
}
.gallery-item:hover figcaption,.gallery-item:focus figcaption{opacity:1;}
.gallery-item.is-hidden{display:none;}

.lightbox{
  position:fixed;inset:0;z-index:300;background:rgba(7,23,40,.94);
  display:none;align-items:center;justify-content:center;padding:30px;
}
.lightbox.open{display:flex;}
.lb-stage{margin:0;max-width:90vw;max-height:86vh;display:flex;flex-direction:column;align-items:center;gap:14px;}
.lb-stage img{max-width:90vw;max-height:78vh;border-radius:8px;box-shadow:0 30px 80px -20px #000;}
.lb-stage figcaption{color:rgba(255,255,255,.85);font-family:var(--font-mono);font-size:.85rem;}
.lb-close,.lb-prev,.lb-next{
  position:absolute;background:rgba(255,255,255,.1);color:#fff;border:none;cursor:pointer;
  width:52px;height:52px;border-radius:50%;font-size:1.8rem;line-height:1;display:grid;place-items:center;
  transition:background .15s;
}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{background:var(--copper);}
.lb-close{top:22px;right:22px;font-size:2rem;}
.lb-prev{left:22px;top:50%;transform:translateY(-50%);}
.lb-next{right:22px;top:50%;transform:translateY(-50%);}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:start;}
.contact-card{background:var(--abyss);color:#fff;border-radius:var(--radius);padding:34px 30px;box-shadow:var(--shadow);}
.contact-card h2{font-family:var(--font-display);margin:0 0 22px;font-size:1.4rem;}
.contact-list{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:20px;}
.contact-list li{display:flex;flex-direction:column;gap:4px;}
.ci-label{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--water-2);}
.ci-value{font-size:1.05rem;color:#fff;text-decoration:none;}
a.ci-value:hover{color:var(--water-2);}
.contact-card .btn-line{color:#fff;border-color:rgba(255,255,255,.3);}
.contact-card .btn-line:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08);}

/* ---------- Formulaire ---------- */
.form{display:grid;gap:20px;}
.field{display:grid;gap:7px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field label{font-family:var(--font-display);font-weight:600;font-size:.92rem;color:var(--abyss);}
.field label span{color:var(--copper);}
.field input,.field textarea{
  font-family:var(--font-body);font-size:1rem;color:var(--ink);
  border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:13px 15px;background:var(--paper);
  transition:border-color .15s,box-shadow .15s;width:100%;
}
.field textarea{resize:vertical;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--water);box-shadow:0 0 0 4px rgba(27,168,206,.14);}
.field.has-error input,.field.has-error textarea{border-color:#d6453f;}
.field-err{color:#d6453f;font-size:.85rem;margin:2px 0 0;}
.form-note{font-size:.82rem;color:var(--ink-soft);margin:0;}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden;}

.alert{border-radius:var(--radius-sm);padding:15px 18px;margin-bottom:22px;font-size:.95rem;}
.alert-ok{background:#e6f6ed;color:#155c38;border:1px solid #bfe6cf;}
.alert-err{background:#fdeceb;color:#a32a25;border:1px solid #f4c7c4;}

/* =========================================================
   LOCALISATION
   ========================================================= */
.map-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:stretch;}
.map-panel{background:var(--mist);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;}
.map-panel h2{font-family:var(--font-display);margin:0 0 16px;color:var(--abyss);}
.map-address{font-style:normal;font-size:1.08rem;line-height:1.7;margin-bottom:24px;}
.map-meta{display:grid;gap:16px;margin:0 0 28px;}
.map-meta dt{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;color:var(--water);}
.map-meta dd{margin:2px 0 0;}
.map-meta a{color:var(--abyss);text-decoration:none;}
.map-meta a:hover{color:var(--water);}
.map-frame{position:relative;border-radius:var(--radius);overflow:hidden;min-height:420px;box-shadow:var(--shadow);border:1px solid var(--line);}
.map-frame iframe{width:100%;height:100%;min-height:420px;border:0;display:block;}
.map-bigger{
  position:absolute;right:14px;bottom:14px;background:var(--paper);color:var(--abyss);
  font-family:var(--font-mono);font-size:.78rem;padding:8px 14px;border-radius:999px;text-decoration:none;
  box-shadow:var(--shadow-sm);
}
.map-bigger:hover{color:var(--water);}

/* =========================================================
   PIED DE PAGE
   ========================================================= */
.site-footer{background:var(--abyss);color:rgba(255,255,255,.8);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px;}
.footer-mark{color:var(--water);display:inline-block;margin-bottom:12px;}
.footer-name{font-family:var(--font-display);font-weight:700;color:#fff;font-size:1.1rem;margin:0 0 4px;}
.footer-tag{margin:0;font-size:.9rem;}
.footer-col h3{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--water-2);margin:0 0 16px;}
.footer-col p,.footer-col address{margin:0 0 8px;font-style:normal;font-size:.95rem;}
.footer-col a{color:rgba(255,255,255,.8);text-decoration:none;}
.footer-col a:hover{color:#fff;}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding-block:22px;font-size:.85rem;color:rgba(255,255,255,.6);}
.footer-bottom p{margin:0;}
.footer-admin{color:rgba(255,255,255,.55);text-decoration:none;font-family:var(--font-mono);font-size:.8rem;}
.footer-admin:hover{color:var(--water-2);}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:980px){
  .services{grid-template-columns:repeat(2,1fr);}
  .pledge-grid{grid-template-columns:1fr;gap:36px;}
  .pledge-figure{max-width:220px;margin-inline:auto;}
  .contact-grid{grid-template-columns:1fr;}
  .map-grid{grid-template-columns:1fr;}
  .teaser-grid{grid-template-columns:repeat(2,1fr);}
  .gallery{columns:2;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:760px){
  /* Navigation mobile */
  .nav-burger{display:flex;flex-direction:column;gap:5px;width:44px;height:44px;border:1px solid var(--line);
    border-radius:10px;align-items:center;justify-content:center;cursor:pointer;background:var(--paper);}
  .nav-burger span{width:20px;height:2px;background:var(--abyss);transition:.2s;}
  .site-nav{
    position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;
    background:var(--paper);border-bottom:1px solid var(--line);padding:14px 24px 22px;gap:4px;
    transform:translateY(-120%);transition:transform .25s;box-shadow:var(--shadow);
  }
  .nav-toggle:checked ~ .site-nav{transform:translateY(0);}
  .nav-toggle:checked ~ .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle:checked ~ .nav-burger span:nth-child(2){opacity:0;}
  .nav-toggle:checked ~ .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .site-nav a{padding:13px 6px;border-radius:8px;border-bottom:1px solid var(--line);}
  .site-nav a:last-child{border-bottom:none;}
  .nav-call{margin:8px 0 0;justify-content:center;}

  .hero-stats{gap:22px;}
  .hero-stats div{min-width:42%;}
  .cta-band{padding:34px 26px;}
}

@media (max-width:520px){
  .services{grid-template-columns:1fr;}
  .teaser-grid{grid-template-columns:1fr;}
  .gallery{columns:1;}
  .field-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .shell{padding-inline:18px;}
}

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