/* ==========================================================================
   MTN — Manuel Teles Nettoyage
   Version statique (HTML/CSS/JS) — reprise du design du site WordPress
   ========================================================================== */

:root{
  --blue:#2d9bea;
  --blue-2:#308acb;
  --blue-grad-top:#52aae9;
  --blue-grad-bottom:#309cea;
  --dark:#282828;
  --dark-2:#2f2f2f;
  --dark-3:#232323;
  --title:#383838;
  --title-alt:#3f4b49;
  --body:#747474;
  --muted:#9b9b9b;
  --line:#e2e2e2;
  --grey-bg:#f5f5f5;
  --sidebar-w:340px;
  --serif:Georgia,"Times New Roman",serif;
  --sans:"Source Sans Pro","Helvetica Neue",Helvetica,Arial,sans-serif;
  --display:"Raleway","Helvetica Neue",Helvetica,Arial,sans-serif;
}

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

html{scroll-behavior:smooth}

body{
  margin:0;
  background:#fff;
  color:var(--body);
  font:15px/25.5px var(--sans);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--display);color:var(--title);font-weight:700}
p{margin:0 0 20px}
ul{margin:0;padding:0;list-style:none}

/* ---------- Barre latérale ------------------------------------------------ */

.side-nav{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100%;
  background:#fff;
  padding:60px 70px;
  z-index:60;
  display:flex;
  flex-direction:column;
  gap:44px;
  overflow-y:auto;
}
.side-nav__logo img{width:170px}
.side-nav__menu li{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:16px}
.side-nav__menu li:last-child{border-bottom:0}
.side-nav__menu a{
  display:block;
  font-family:var(--display);
  font-weight:800;
  font-size:13px;
  line-height:22px;
  letter-spacing:.5px;
  text-transform:uppercase;
  color:#999;
  transition:color .2s ease;
}
.side-nav__menu a:hover,
.side-nav__menu a.is-active{color:#1e1e1e}

.side-nav__toggle{display:none}

/* ---------- Contenu ------------------------------------------------------- */

.page{margin-left:var(--sidebar-w)}

.container{max-width:1000px;margin:0 auto;padding:0 20px}

.section{position:relative;padding:110px 0}

/* fond photo + voile noir (parallaxe, comme l'original) */
.bg-photo{position:relative;background:#000;overflow:hidden}
.bg-photo::before{
  content:"";
  position:absolute;inset:0;
  background-size:cover;
  background-position:50% 50%;
  background-attachment:fixed;
  opacity:.5;
}
.bg-photo>*{position:relative;z-index:1}

/* ---------- Titres communs ------------------------------------------------ */

.eyebrow{
  display:block;
  font:italic 16px/27.2px var(--serif);
  color:var(--body);
  margin-bottom:10px;
}
.caption{
  display:block;
  font:19px/32.3px var(--serif);
  color:var(--muted);
}
.title-lines{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:26px;
  width:fit-content;
  max-width:100%;
  margin-inline:auto;
}
.title-lines::before,.title-lines::after{
  content:"";
  height:1px;
  width:70px;
  background:currentColor;
  opacity:.45;
  flex:none;
}

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

.btn{
  display:inline-block;
  font:700 13px/22.1px var(--sans);
  letter-spacing:.8px;
  text-transform:uppercase;
  padding:15px 33px;
  border-radius:27px;
  border:0;
  cursor:pointer;
  transition:background-color .25s ease,color .25s ease,box-shadow .25s ease;
}
.btn--blue{background:var(--blue);color:#fff}
.btn--blue:hover{background:var(--blue-2)}
.btn--white{background:#fff;color:var(--blue)}
.btn--white:hover{background:var(--blue);color:#fff}
.btn--white-dark{background:#fff;color:var(--dark-3)}
.btn--white-dark:hover{background:var(--blue);color:#fff}
.btn--dark{background:var(--dark-2);color:#fff}
.btn--dark:hover{background:var(--blue)}

/* ---------- Hero ---------------------------------------------------------- */

.hero{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:120px 0 42px;
}
.hero::before{background-image:url("../img/hero.webp")}
.hero__intro{text-align:center;padding:0 20px}
.hero__title{
  font-weight:700;
  font-size:70px;
  line-height:84px;
  letter-spacing:1px;
  text-transform:uppercase;
  color:#fff;
  margin-bottom:12px;
}
.hero__subtitle{
  font-weight:300;
  font-size:30px;
  line-height:36px;
  letter-spacing:2px;
  text-transform:uppercase;
  color:#fff;
  margin-bottom:44px;
}

/* ---------- Cartes « flip » ---------------------------------------------- */

.flipboxes{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:30px;
  width:100%;
  max-width:1020px;
  margin-top:60px;
  margin-inline:auto;
  padding:0 20px;
  align-self:center;
}
.flipbox{perspective:1000px;height:377px}
.flipbox__inner{
  position:relative;
  width:100%;height:100%;
  transition:transform .7s cubic-bezier(.4,.2,.2,1);
  transform-style:preserve-3d;
}
.flipbox:hover .flipbox__inner,
.flipbox:focus-within .flipbox__inner{transform:rotateY(180deg)}
.flipbox__face{
  position:absolute;inset:0;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  padding:50px 40px;
  text-align:center;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.flipbox__front{background:#fff}
.flipbox__front::after{
  content:"";
  position:absolute;
  inset:10px;
  border:2px solid #1e73be;
  pointer-events:none;
}
.flipbox__back{
  background:var(--dark);
  transform:rotateY(180deg);
  justify-content:center;
}
.flipbox__img{margin-bottom:26px}
.flipbox__img img{width:100%;height:153px;object-fit:cover}
.flipbox__title{
  font-weight:300;
  font-size:23px;
  line-height:27.6px;
  color:#191919;
  margin-bottom:6px;
}
.flipbox__back .flipbox__title{color:#fff;margin-bottom:14px}
.flipbox__caption{font:15px/25.5px var(--display);color:#4f4f4f}
.flipbox__list{margin:0 0 22px;color:#c8c8c8;font-size:14px;line-height:26px}
.flipbox__back .btn{align-self:center}

/* ---------- Présentation (bloc bleu) -------------------------------------- */

.presentation{
  background:linear-gradient(var(--blue-grad-top),var(--blue-grad-bottom));
  padding:96px 0 104px;
  color:#fff;
}
.presentation__head{text-align:center;margin-bottom:56px;color:#fff}
.presentation__head h2{
  font-weight:800;
  font-size:41px;
  line-height:49.2px;
  letter-spacing:1px;
  text-transform:uppercase;
  color:#fff;
}
.presentation__head .caption{color:#f5f5f5;font-size:20px;line-height:34px;margin-top:6px}
.presentation__grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:50px;
  align-items:start;
}
.presentation__photo img{border-radius:6px;width:100%}

/* Accordéon */
.accordion__item{border-bottom:1px solid rgba(255,255,255,.28)}
.accordion__btn{
  width:100%;
  display:flex;
  align-items:center;
  gap:20px;
  background:none;
  border:0;
  padding:18px 0;
  cursor:pointer;
  text-align:left;
  color:#fff;
  font:600 14px/16.8px var(--display);
  letter-spacing:1px;
  text-transform:uppercase;
}
.accordion__sign{
  flex:none;
  width:32px;height:32px;
  border:1px solid rgba(255,255,255,.6);
  display:grid;place-items:center;
  font:400 18px/1 var(--sans);
}
.accordion__sign::before{content:"+"}
.accordion__item.is-open .accordion__sign::before{content:"–"}
.accordion__panel{
  overflow:hidden;
  max-height:0;
  transition:max-height .45s ease;
}
.accordion__item.is-open .accordion__panel{max-height:900px}
.accordion__inner{padding:4px 0 26px 52px;color:#c6def1;font-size:15px;line-height:25.5px}
.accordion__inner ul{list-style:disc;padding-left:20px;margin:0 0 10px}

/* ---------- Citation ------------------------------------------------------ */

.quote{padding:96px 0 90px;text-align:center;background:#fff}
.quote__title{
  font-weight:500;
  font-size:41px;
  line-height:49.2px;
  color:var(--title-alt);
  margin-bottom:36px;
}
.quote__mark{
  font:700 60px/1 var(--serif);
  color:var(--muted);
  display:block;
  margin-bottom:12px;
}
.quote__text{
  font:italic 18px/30.6px var(--serif);
  color:#4e4e4e;
  max-width:760px;
  margin:0 auto 18px;
}
.quote__author{font:italic 700 16px/27.2px var(--serif);color:#4e4e4e}

/* ---------- Valeurs ------------------------------------------------------- */

.values{background:var(--grey-bg);padding:74px 0 80px;text-align:center}
.values .caption{margin-bottom:44px}
.values__grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
}
.values__icon{color:var(--blue);margin-bottom:22px}
/* Icônes : glyphes Font Awesome 4.7 (SIL OFL 1.1) convertis en SVG,
   comme sur le site d'origine. Hauteur = taille de police d'origine (34px). */
.values__icon svg{height:34px;width:auto;margin:0 auto;display:block;fill:currentColor}
.values__title{
  font-weight:400;
  font-size:32px;
  line-height:38.4px;
  letter-spacing:1px;
  text-transform:uppercase;
  color:#383838;
}

/* ---------- Blocs services (50/50) ---------------------------------------- */

.split{display:grid;grid-template-columns:1fr 1fr;min-height:660px}
.split__media{position:relative;background:#000;overflow:hidden}
.split__media::before{
  content:"";position:absolute;inset:0;
  background-size:cover;background-position:50% 50%;
}
.split__media--1::before{background-image:url("../img/bloc-1.webp")}
.split__media--2::before{background-image:url("../img/bloc-2.webp")}
.split__media--3::before{background-image:url("../img/bloc-3.webp")}
.split__panel{display:flex;align-items:center;padding:90px 70px}
.split__panel-inner{max-width:470px}
.split__title{
  font-weight:800;
  font-size:46px;
  line-height:55.2px;
  margin-bottom:26px;
}
.split__list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:6px 24px;
  margin-bottom:26px;
}
.split__list li{
  display:flex;
  gap:10px;
  font-size:15px;
  line-height:23px;
  padding:5px 0;
}
.split__list li::before{
  content:"";
  flex:none;
  margin-top:7px;
  width:9px;height:9px;
  border-radius:50%;
  border:2px solid currentColor;
  opacity:.85;
}
.split__text{margin-bottom:30px}

/* variantes */
.split--light .split__panel{background:#fff}
.split--light .split__title{color:var(--title)}
.split--light .split__list li,.split--light .split__text{color:var(--body)}
.split--light .eyebrow{color:var(--body)}

.split--blue .split__panel{background:var(--blue)}
.split--blue .split__title{color:var(--title)}
.split--blue .eyebrow{color:#fff}
.split--blue .split__list li,.split--blue .split__text{color:#fff}

.split--dark .split__panel{background:var(--dark)}
.split--dark .split__title{color:#fff}
.split--dark .eyebrow{color:#fff}
.split--dark .split__list li,.split--dark .split__text{color:#d5d5d5}

.split--reverse .split__media{order:2}

/* ---------- Clients ------------------------------------------------------- */

.clients{background:var(--grey-bg);padding:80px 0 90px;text-align:center}
.clients__title{
  font-weight:300;
  font-size:41px;
  line-height:49.2px;
  letter-spacing:1px;
  text-transform:uppercase;
  margin-bottom:48px;
}
.clients__grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  align-items:center;
}
.clients__grid img{
  margin:0 auto;
  max-height:80px;
  width:auto;
}

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

.contact{padding:96px 0 110px}
.contact::before{background-image:url("../img/contact.webp");opacity:.42}
.contact__head{text-align:center;margin-bottom:52px}
.contact__head .eyebrow{color:#c9c9c9}
.contact__title{
  font-weight:800;
  font-size:40px;
  line-height:48px;
  letter-spacing:1px;
  color:#fff;
}
.contact__name{
  font-weight:700;
  font-size:28px;
  line-height:33.6px;
  color:#fff;
  margin-bottom:18px;
}
.contact__info{color:#fff;margin-bottom:34px}
.contact__address{margin-bottom:22px;line-height:24px}
.contact__lines{display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;max-width:640px}
.contact__line{display:flex;align-items:center;gap:14px}
.contact__line svg{width:17px;height:17px;fill:#fff;flex:none}
.contact__line a:hover{text-decoration:underline}

.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form input,.form textarea{
  width:100%;
  font:15px var(--sans);
  color:#6b6b6b;
  background:#fff;
  border:0;
  border-bottom:2px solid #898989;
  padding:15px 22px;
}
.form textarea{min-height:130px;resize:vertical;font-family:var(--sans)}
.form .form__full{grid-column:1/-1}
.form__actions{grid-column:1/-1;text-align:center;margin-top:12px}
.form input:focus,.form textarea:focus{outline:2px solid var(--blue);outline-offset:2px}
.form__note{
  grid-column:1/-1;
  color:rgba(255,255,255,.75);
  font-size:13px;
  text-align:center;
  margin:0;
}

/* ---------- Pied de page -------------------------------------------------- */

.footer{
  background:var(--dark);
  color:var(--muted);
  text-align:center;
  padding:38px 20px;
  font-size:13px;
  letter-spacing:1px;
  text-transform:uppercase;
}
.footer a:hover{color:#fff}

/* ---------- Navigation par points ---------------------------------------- */

.dots{
  position:fixed;
  right:18px;top:50%;
  transform:translateY(-50%);
  z-index:50;
  display:grid;
  gap:11px;
}
.dots a{
  display:block;
  width:7px;height:7px;
  border-radius:50%;
  background:rgba(120,120,120,.55);
  transition:transform .2s ease,background-color .2s ease;
}
.dots a:hover,.dots a.is-active{background:var(--blue);transform:scale(1.5)}

/* ---------- Page intérieure (mentions légales) ---------------------------- */

.legal{padding:120px 0 100px}
.legal h1{
  font-weight:800;
  font-size:41px;
  line-height:49.2px;
  letter-spacing:1px;
  text-transform:uppercase;
  margin-bottom:40px;
}
.legal h2{
  font-weight:700;
  font-size:22px;
  line-height:30px;
  margin:38px 0 14px;
}
.legal p{max-width:760px}
.legal .back{display:inline-block;margin-top:34px}

/* ---------- Responsive ---------------------------------------------------- */

@media (max-width:1200px){
  .hero__title{font-size:52px;line-height:62px}
  .hero__subtitle{font-size:22px;line-height:30px}
  .split__panel{padding:70px 46px}
  .split__title{font-size:38px;line-height:46px}
}

@media (max-width:1024px){
  :root{--sidebar-w:0px}
  .page{margin-left:0}
  .dots{display:none}

  html{scroll-padding-top:78px}
  .page{padding-top:78px}

  .side-nav{
    position:fixed;
    top:0;left:0;right:0;
    width:auto;
    height:78px;
    padding:12px 20px;
    flex-direction:row;
    align-items:center;
    justify-content:flex-start;
    gap:0;
    overflow:visible;          /* sinon le menu déroulant est rogné */
    background:#fff;
    box-shadow:0 1px 0 var(--line);
  }
  .side-nav__logo{margin-right:auto;display:block}
  .side-nav__logo img{width:120px}
  .side-nav__toggle{
    display:block;
    background:none;border:0;
    padding:10px;
    margin:0;
    cursor:pointer;
    color:var(--title);
    line-height:0;
  }
  .side-nav__toggle svg{width:26px;height:26px;fill:currentColor;display:block}
  .side-nav>nav{position:static}
  .side-nav__menu{
    position:absolute;
    top:100%;left:0;right:0;
    background:#fff;
    padding:6px 20px 14px;
    border-bottom:1px solid var(--line);
    box-shadow:0 12px 22px rgba(0,0,0,.09);
    display:none;
    max-height:calc(100vh - 70px);
    overflow-y:auto;
  }
  .side-nav__menu.is-open{display:block}
  .side-nav__menu li{padding-bottom:12px;margin-bottom:12px}
  .side-nav__menu a{font-size:14px;padding:4px 0}

  .presentation__grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr;min-height:0}
  .split__media{min-height:320px;order:0 !important}
  .split__panel{padding:60px 26px}
  .split__panel-inner{max-width:none}
  .values__grid{grid-template-columns:1fr 1fr;gap:44px 20px}
  .clients__grid{grid-template-columns:1fr 1fr;gap:34px}
  .bg-photo::before,.split__media::before{background-attachment:scroll}
}

@media (max-width:860px){
  .flipboxes{grid-template-columns:1fr;max-width:420px}
  .hero{min-height:0;padding:70px 0 60px}
  .hero__title{font-size:36px;line-height:44px}
  .hero__subtitle{font-size:17px;line-height:26px;letter-spacing:1.5px}
  .quote__title,.presentation__head h2,.clients__title,.legal h1{font-size:30px;line-height:38px}
  .split__title{font-size:30px;line-height:38px}
  .split__list{grid-template-columns:1fr}
  .form{grid-template-columns:1fr}
  .contact__lines{grid-template-columns:1fr}
  .values__title{font-size:24px;line-height:30px}
  .section,.quote,.values,.clients,.contact,.presentation{padding-left:0;padding-right:0}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .flipbox__inner{transition:none}
}