/* ==========================================================================
   Alfanar Energy — feuille de style
   Design moderne, léger, sans dépendance (hors police Google Fonts)
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul{list-style:none;padding:0}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:6px}

/* ---------- 2. Variables ---------- */
:root{
  --navy-900:#031528;
  --navy-800:#062441;
  --navy-700:#0a2f52;
  --brand:#0b6cb4;
  --brand-700:#085a97;
  --brand-300:#63b3e8;
  --sun:#ffab1f;
  --sun-600:#f08a00;
  --ink:#0c2135;
  --muted:#5b7186;
  --bg:#ffffff;
  --bg-alt:#f4f8fc;
  --bg-alt-2:#eaf2f9;
  --line:#e2ebf3;
  --white:#fff;
  --ok:#16a34a;

  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --radius-xl:32px;

  --shadow-sm:0 1px 2px rgba(6,36,65,.06),0 2px 8px rgba(6,36,65,.05);
  --shadow:0 10px 30px -12px rgba(6,36,65,.18);
  --shadow-lg:0 30px 60px -20px rgba(6,36,65,.28);

  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-head:"Manrope",var(--font-body);

  --container:1180px;
  --gutter:clamp(1.1rem,4vw,2rem);
  --section-y:clamp(3.5rem,8vw,7rem);
}

/* ---------- 3. Typography ---------- */
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.12;letter-spacing:-.02em;color:var(--navy-900);font-weight:800}
h1{font-size:clamp(2.15rem,5.2vw,3.9rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.7rem)}
h3{font-size:clamp(1.15rem,1.6vw,1.4rem)}
p{color:var(--muted)}
strong{color:var(--ink)}
.lead{font-size:clamp(1.05rem,1.5vw,1.25rem);color:var(--muted);max-width:60ch}

/* ---------- 4. Layout ---------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
section{padding-block:var(--section-y)}
.section--alt{background:var(--bg-alt)}
.section--tight{padding-block:clamp(2.5rem,5vw,4rem)}
.center{text-align:center}
.center .lead{margin-inline:auto}
.stack>*+*{margin-top:1rem}

.grid{display:grid;gap:clamp(1.1rem,2.4vw,1.75rem)}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}

/* ---------- 5. Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s,box-shadow .25s,background .25s;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm);background:rgba(255,255,255,.94)}
.nav{display:flex;align-items:center;gap:1.25rem;min-height:74px}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--font-head);font-weight:800;color:var(--navy-900);letter-spacing:-.02em}
.brand img{width:46px;height:46px;object-fit:contain}
.brand span{font-size:1.02rem;line-height:1.05}
.brand small{display:block;font-size:.62rem;letter-spacing:.16em;color:var(--brand);font-weight:700;text-transform:uppercase}

.nav-links{display:flex;align-items:center;gap:.35rem;margin-left:auto}
.nav-links a{
  padding:.55rem .85rem;border-radius:999px;font-weight:600;font-size:.94rem;color:var(--navy-700);
  transition:background .2s,color .2s;position:relative;
}
.nav-links a:hover{background:var(--bg-alt-2);color:var(--brand-700)}
.nav-links a[aria-current="page"]{color:var(--brand-700)}
.nav-links a[aria-current="page"]::after{content:"";position:absolute;left:.85rem;right:.85rem;bottom:.2rem;height:2px;border-radius:2px;background:var(--brand)}

.has-drop{position:relative}
.drop{
  position:absolute;top:calc(100% + .5rem);left:50%;transform:translateX(-50%) translateY(-6px);
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:.5rem;min-width:230px;
  opacity:0;visibility:hidden;transition:.2s;display:grid;gap:.15rem;
}
.has-drop:hover .drop,.has-drop:focus-within .drop{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.drop a{display:block;border-radius:10px;padding:.6rem .75rem;font-size:.92rem}
.drop a strong{display:block;color:var(--navy-900);font-weight:700}
.drop a em{font-style:normal;color:var(--muted);font-size:.82rem}

.nav-toggle{display:none;margin-left:auto;background:var(--navy-900);color:#fff;border:0;border-radius:12px;padding:.6rem .7rem;cursor:pointer}
.nav-toggle svg{width:24px;height:24px}

/* ---------- 6. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  font-family:var(--font-head);font-weight:700;font-size:.95rem;
  padding:.85rem 1.4rem;border-radius:999px;border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s,box-shadow .25s,background .2s,color .2s,border-color .2s;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:none}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:linear-gradient(135deg,var(--sun) 0%,var(--sun-600) 100%);color:#231400;box-shadow:0 12px 24px -10px rgba(240,138,0,.6)}
.btn--primary:hover{box-shadow:0 18px 30px -12px rgba(240,138,0,.7)}
.btn--dark{background:var(--navy-900);color:#fff}
.btn--dark:hover{background:var(--navy-700)}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--navy-900)}
.btn--ghost:hover{border-color:var(--brand-300);background:var(--bg-alt)}
.btn--light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.btn--light:hover{background:rgba(255,255,255,.2)}
.btn--sm{padding:.6rem 1rem;font-size:.88rem}
.btn--block{width:100%}

/* ---------- 7. Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#eaf3fb;
  background:
    radial-gradient(1100px 600px at 78% -10%,rgba(255,171,31,.28),transparent 60%),
    radial-gradient(900px 500px at 10% 110%,rgba(11,108,180,.5),transparent 60%),
    linear-gradient(160deg,var(--navy-900),var(--navy-800) 55%,#082e50);
  padding-block:clamp(3rem,7vw,6rem);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:60px 60px;mask-image:radial-gradient(80% 70% at 50% 30%,#000,transparent);
}
.hero .container{position:relative;display:grid;gap:clamp(2rem,4vw,3.5rem);grid-template-columns:1.05fr .95fr;align-items:center}
.hero h1{color:#fff}
.hero p.lead{color:#a9c6de}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;font-weight:700;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--sun);background:rgba(255,171,31,.1);border:1px solid rgba(255,171,31,.3);
  padding:.45rem .9rem;border-radius:999px;margin-bottom:1.2rem;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem}
.hero-trust{display:flex;flex-wrap:wrap;gap:1.4rem;margin-top:2.2rem;padding-top:1.6rem;border-top:1px solid rgba(255,255,255,.14)}
.hero-trust div{display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:#c6dbec;font-weight:600}
.hero-trust svg{width:20px;height:20px;color:var(--sun);flex:none}

.hero-visual{position:relative}
.hero-visual .frame{
  border-radius:var(--radius-xl);overflow:hidden;border:1px solid rgba(255,255,255,.18);
  box-shadow:var(--shadow-lg);aspect-ratio:4/3.1;background:#0a2f52;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;background:rgba(255,255,255,.97);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:.85rem 1rem;display:flex;align-items:center;gap:.7rem;
  animation:floaty 5.5s ease-in-out infinite;
}
.float-card .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--bg-alt-2);color:var(--brand)}
.float-card .ic svg{width:22px;height:22px}
.float-card b{display:block;font-family:var(--font-head);color:var(--navy-900);font-size:.95rem;line-height:1.1}
.float-card span{font-size:.74rem;color:var(--muted)}
.float-card--a{left:-1.2rem;bottom:2.2rem}
.float-card--b{right:-.8rem;top:1.6rem;animation-delay:-2.4s}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- 8. Page header (pages internes) ---------- */
.page-hero{
  background:
    radial-gradient(800px 400px at 85% 0%,rgba(255,171,31,.22),transparent 60%),
    linear-gradient(160deg,var(--navy-900),var(--navy-800));
  color:#eaf3fb;padding-block:clamp(2.6rem,6vw,4.5rem);
}
.page-hero h1{color:#fff;max-width:20ch}
.page-hero p{color:#a9c6de;max-width:62ch;margin-top:.8rem}
.crumbs{display:flex;gap:.5rem;font-size:.85rem;color:#89a8c4;margin-bottom:1rem;flex-wrap:wrap}
.crumbs a:hover{color:#fff}
.crumbs span{opacity:.5}

/* ---------- 9. Cards ---------- */
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(1.4rem,2.4vw,2rem);box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s,border-color .25s;height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand-300)}
.card h3{margin-bottom:.5rem}
.card .ic{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:1.1rem;
  background:linear-gradient(135deg,rgba(11,108,180,.12),rgba(255,171,31,.16));color:var(--brand-700);
}
.card .ic svg{width:26px;height:26px}

.svc-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
.svc-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt-2)}
.svc-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.svc-card:hover .thumb img{transform:scale(1.06)}
.svc-card .body{padding:1.4rem 1.5rem 1.6rem;display:flex;flex-direction:column;flex:1}
.svc-card .body p{flex:1}
.svc-card .more{margin-top:1.1rem;display:inline-flex;align-items:center;gap:.45rem;color:var(--brand-700);font-weight:700;font-family:var(--font-head)}
.svc-card .more svg{width:18px;height:18px;transition:transform .2s}
.svc-card:hover .more svg{transform:translateX(4px)}

/* ---------- 10. Stats / features ---------- */
.stats{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.stat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;text-align:center;box-shadow:var(--shadow-sm)}
.stat b{display:block;font-family:var(--font-head);font-size:clamp(1.6rem,3vw,2.2rem);color:var(--brand-700);line-height:1}
.stat span{display:block;margin-top:.5rem;font-size:.86rem;color:var(--muted);font-weight:600}

.feature{display:flex;gap:1rem;align-items:flex-start}
.feature .ic{width:46px;height:46px;border-radius:12px;flex:none;display:grid;place-items:center;background:var(--bg-alt-2);color:var(--brand-700)}
.feature .ic svg{width:24px;height:24px}
.feature h3{font-size:1.08rem;margin-bottom:.25rem}
.feature p{font-size:.92rem}

/* ---------- 11. Steps ---------- */
.steps{counter-reset:step;display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.step{position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem 1.4rem 1.4rem;box-shadow:var(--shadow-sm)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--font-head);font-weight:800;font-size:1.5rem;color:var(--brand-300);
}
.step h3{font-size:1.05rem;margin:.4rem 0 .35rem}
.step p{font-size:.9rem}

/* ---------- 12. Prose (pages détail) ---------- */
.prose h2{margin-top:2.4rem}
.prose h2:first-child{margin-top:0}
.prose h3{margin-top:1.6rem}
.prose p{margin-top:.7rem}
.prose ul{margin-top:.9rem;display:grid;gap:.7rem}
.prose ul li{position:relative;padding-left:1.9rem;color:var(--muted)}
.prose ul li::before{content:"";position:absolute;left:0;top:.45rem;width:1.05rem;height:1.05rem;border-radius:50%;
  background:var(--sun);box-shadow:inset 0 0 0 5px rgba(255,171,31,.18)}
.prose ul li strong{color:var(--navy-900)}
.check li::before{background:var(--ok);box-shadow:inset 0 0 0 5px rgba(22,163,74,.15)}

.two-col{display:grid;gap:clamp(1.5rem,3vw,2.6rem);grid-template-columns:1.15fr .85fr;align-items:start}
.side-card{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-lg);padding:1.6rem;position:sticky;top:96px}
.side-card h3{margin-bottom:.6rem}
.side-card ul{display:grid;gap:.6rem;margin-top:.8rem}
.side-card li{display:flex;gap:.6rem;font-size:.9rem;color:var(--muted)}
.side-card svg{width:18px;height:18px;color:var(--brand);flex:none;margin-top:.2rem}

/* ---------- 13. CTA band ---------- */
.cta-band{
  background:
    radial-gradient(700px 360px at 15% 0%,rgba(255,171,31,.28),transparent 60%),
    linear-gradient(140deg,var(--navy-800),var(--navy-900));
  color:#eaf3fb;border-radius:var(--radius-xl);
  padding:clamp(2rem,5vw,3.4rem);position:relative;overflow:hidden;
}
.cta-band h2{color:#fff}
.cta-band p{color:#a9c6de;max-width:52ch}
.cta-band .btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}
.cta-band .inner{position:relative;display:grid;gap:2rem;grid-template-columns:1.4fr .6fr;align-items:center}
.cta-band .big-phone{font-family:var(--font-head);font-size:clamp(1.3rem,2.6vw,1.9rem);font-weight:800;color:var(--sun);text-align:right}
.cta-band .big-phone span{display:block;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:#89a8c4;font-weight:700;margin-bottom:.3rem}

/* ---------- 14. Forms ---------- */
.form{display:grid;gap:1rem}
.field{display:grid;gap:.4rem}
.field label{font-weight:600;font-size:.88rem;color:var(--navy-900)}
.field .hint{font-size:.78rem;color:var(--muted)}
.field input,.field select,.field textarea{
  padding:.8rem .95rem;border:1.5px solid var(--line);border-radius:12px;background:var(--white);
  transition:border-color .2s,box-shadow .2s;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(11,108,180,.14)}
.field textarea{min-height:120px;resize:vertical}
.two-fields{display:grid;gap:1rem;grid-template-columns:1fr 1fr}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{position:relative}
.chip input{position:absolute;opacity:0;inset:0;cursor:pointer}
.chip span{display:inline-block;padding:.5rem .9rem;border:1.5px solid var(--line);border-radius:999px;font-size:.88rem;font-weight:600;cursor:pointer;transition:.2s}
.chip input:checked+span{background:var(--navy-900);color:#fff;border-color:var(--navy-900)}
.chip input:focus-visible+span{outline:3px solid var(--sun);outline-offset:2px}
.form-status{padding:.8rem 1rem;border-radius:12px;font-size:.9rem;font-weight:600;display:none}
.form-status.show{display:block}
.form-status.ok{background:rgba(22,163,74,.1);color:#166534;border:1px solid rgba(22,163,74,.3)}
.form-status.err{background:rgba(220,38,38,.08);color:#991b1b;border:1px solid rgba(220,38,38,.25)}

/* ---------- 15. Contact / info ---------- */
.info-list{display:grid;gap:1rem}
.info-item{display:flex;gap:.9rem;align-items:flex-start}
.info-item .ic{width:44px;height:44px;flex:none;border-radius:12px;display:grid;place-items:center;background:var(--bg-alt-2);color:var(--brand-700)}
.info-item .ic svg{width:22px;height:22px}
.info-item b{display:block;color:var(--navy-900);font-family:var(--font-head)}
.info-item a,.info-item span{color:var(--muted);font-size:.94rem}
.info-item a:hover{color:var(--brand-700)}
.map{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);min-height:320px}
.map iframe{width:100%;height:100%;min-height:320px;border:0;display:block}

.socials{display:flex;gap:.6rem}
.socials a{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(255,255,255,.08);color:#cfe1f0;transition:.2s}
.socials a:hover{background:var(--sun);color:#231400;transform:translateY(-2px)}
.socials svg{width:20px;height:20px}

/* ---------- 16. Footer ---------- */
.site-footer{background:var(--navy-900);color:#a9c6de;padding-block:clamp(2.6rem,5vw,4rem) 1.6rem}
.footer-grid{display:grid;gap:2.2rem;grid-template-columns:1.5fr 1fr 1.2fr;padding-bottom:2.2rem;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer h4{color:#fff;font-family:var(--font-head);font-size:1rem;margin-bottom:1rem}
.site-footer a{color:#a9c6de}
.site-footer a:hover{color:var(--sun)}
.site-footer p{color:#89a8c4}
.foot-links{display:grid;gap:.55rem}
.foot-links a{font-size:.94rem}
.foot-brand{display:flex;align-items:center;gap:.7rem;margin-bottom:1rem}
.foot-brand img{width:52px;height:52px;filter:brightness(0) invert(1) drop-shadow(0 0 0 transparent)}
.foot-brand b{color:#fff;font-family:var(--font-head);font-size:1.05rem;letter-spacing:-.02em}
.copyright{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:space-between;align-items:center;padding-top:1.4rem;font-size:.84rem;color:#6f92b1}

/* ---------- 17. Reveal (amélioration progressive : visible sans JS) ---------- */
html.js [data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
html.js [data-reveal].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html.js [data-reveal]{opacity:1;transform:none;transition:none}
  .float-card{animation:none}
  html{scroll-behavior:auto}
}

/* ---------- 17b. Bouton flottant WhatsApp ---------- */
.fab{
  position:fixed;right:1.1rem;bottom:1.1rem;z-index:70;
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  background:#25d366;color:#fff;box-shadow:0 14px 30px -8px rgba(37,211,102,.65);
  transition:transform .2s,box-shadow .25s;
}
.fab:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 20px 36px -10px rgba(37,211,102,.8)}
.fab svg{width:30px;height:30px}

/* ---------- 18. Skip link ---------- */
.skip{position:absolute;left:-999px;top:0;background:var(--sun);color:#231400;padding:.7rem 1rem;border-radius:0 0 10px 0;font-weight:700;z-index:100}
.skip:focus{left:0}

/* ---------- 19. Responsive ---------- */
@media (max-width:960px){
  .hero .container{grid-template-columns:1fr}
  .hero-visual{order:-1}
  .float-card--a{left:.4rem}
  .float-card--b{right:.4rem}
  .two-col{grid-template-columns:1fr}
  .side-card{position:static}
  .cta-band .inner{grid-template-columns:1fr}
  .cta-band .big-phone{text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav-toggle{display:grid}
  .nav-links{
    position:fixed;inset:74px 0 auto 0;background:var(--white);flex-direction:column;align-items:stretch;
    padding:1rem var(--gutter) 1.4rem;gap:.2rem;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-lg);transform:translateY(-12px);opacity:0;visibility:hidden;transition:.25s;margin-left:0;
  }
  .nav-links.open{transform:none;opacity:1;visibility:visible}
  .nav-links a{padding:.75rem .8rem;border-radius:12px}
  .nav-links .btn{width:100%;margin-top:.5rem}
  .drop{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;border:0;padding:0 0 0 .6rem;min-width:0}
  .footer-grid{grid-template-columns:1fr}
  .two-fields{grid-template-columns:1fr}
}