/* ── NAV ── */
header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,backdrop-filter .3s}
header:not(.scrolled){background:transparent}
header.scrolled{background:rgba(10,15,26,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06)}
header.nav-dark{background:rgba(10,15,26,.95);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav-inner{display:flex;align-items:center;padding:.9rem 16px;max-width:1140px;margin:0 auto;gap:.5rem}
@media(min-width:768px){.nav-inner{justify-content:space-between}}
.logo{display:inline-flex;align-items:center;flex-shrink:0;line-height:0}
.logo img{height:52px;width:auto;display:block}
footer .logo img{height:36px}
.logo span{color:var(--emerald)}
.nav-right{display:flex;align-items:center;gap:.4rem}

/* Hamburger */
.hamburger{display:flex;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;z-index:110}
.hamburger span{display:block;width:22px;height:2px;background:var(--white);border-radius:2px;transition:all .3s}
.hamburger.open span{background:var(--white)}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
@media(min-width:768px){.hamburger{display:none}}

/* Desktop nav */
.nav-links{display:none;list-style:none;gap:2rem;align-items:center}
@media(min-width:768px){.nav-links{display:flex}}
.nav-links>li>a{color:rgba(255,255,255,.7);font-size:.88rem;font-weight:500;transition:color .2s}
.nav-links>li>a:hover{color:var(--emerald)}
.nav-links>li{position:relative}
.nav-links>li>a.has-mega{display:flex;align-items:center;gap:.3rem}
.nav-links>li>a.has-mega::after{content:'';width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:4px solid currentColor;transition:transform .25s}
.nav-links>li:hover>a.has-mega::after{transform:rotate(180deg)}

/* Desktop mega panel */
.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);width:780px;background:var(--white);border:1px solid var(--slate-200);border-radius:var(--r-lg);padding:2rem 2.5rem;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s ease,transform .3s ease,visibility .3s;box-shadow:0 20px 60px rgba(0,0,0,.12)}
.nav-links>li:hover .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;align-items:start}
.mega-col h6{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--emerald);margin-bottom:.8rem;padding-bottom:.6rem;border-bottom:2px solid var(--slate-100);line-height:1}
.mega-col ul{list-style:none;display:flex;flex-direction:column;gap:.2rem}
.mega-col a{display:flex;align-items:center;gap:.5rem;font-size:.82rem;color:var(--slate-600);padding:.45rem .6rem;border-radius:var(--r);transition:all .2s}
.mega-col a:hover{color:var(--emerald-dark);background:var(--slate-50)}
.mega-col a svg{width:15px;height:15px;stroke:#a4aaaf;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;transition:stroke .2s}
.mega-col a:hover svg{stroke:var(--emerald)}
.mega-col a svg[viewBox="0 0 384 512"]{fill:#a4aaaf;stroke:none;width:15px;height:15px}
.mega-col a:hover svg[viewBox="0 0 384 512"]{fill:#E60023}
.mega-besoins{width:760px}
.mega-besoins .mega-col a{white-space:nowrap}
@media(max-width:767px){.mega-menu{display:none}}

/* ── MOBILE MENU ── */
.mobile-menu{position:fixed;inset:0;z-index:105;background:rgba(10,15,26,.98);backdrop-filter:blur(20px);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;overflow-y:auto;padding:80px 24px 40px;display:flex;flex-direction:column;gap:1rem}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu-links{list-style:none;display:flex;flex-direction:column;gap:0}
.mobile-menu-links>li>a{display:block;padding:.9rem 0;font-size:1rem;font-weight:600;color:var(--white);border-bottom:1px solid rgba(255,255,255,.06);transition:color .2s}
.mobile-menu-links>li>a:hover{color:var(--emerald)}
.mobile-mega-toggle{display:flex;justify-content:space-between;align-items:center;width:100%;cursor:pointer}
.mobile-mega-toggle .m-arrow{transition:transform .3s;font-size:.7rem;color:var(--slate-400)}
.mobile-mega-toggle.open .m-arrow{transform:rotate(180deg)}
.mobile-mega-content{max-height:0;overflow:hidden;transition:max-height .4s ease}
.mobile-mega-content.open{max-height:1600px}
.mobile-mega-cat{font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--emerald);padding:.8rem 0 .3rem;margin-top:.3rem;border-top:1px solid rgba(255,255,255,.04)}
.mobile-mega-cat:first-child{border-top:none;margin-top:0}
.mobile-mega-content a{display:flex;align-items:center;gap:.5rem;padding:.55rem .8rem;font-size:.85rem;color:var(--slate-400);border-radius:var(--r);transition:all .2s}
.mobile-mega-content a:hover,.mobile-mega-content a:active{color:var(--white);background:rgba(59,130,246,.1)}
.mobile-mega-content a svg{width:14px;height:14px;stroke:#a4aaaf;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.mobile-mega-content a svg[viewBox="0 0 384 512"]{fill:#a4aaaf;stroke:none;width:14px;height:14px}
.mobile-menu-close{position:absolute;top:16px;right:24px;background:none;border:none;color:var(--white);font-size:1.8rem;line-height:1;cursor:pointer;z-index:110;padding:4px 10px;border-radius:8px;transition:background .2s}
.mobile-menu-close:hover{background:rgba(255,255,255,.1)}
.mobile-menu-cta{margin-top:auto;padding-top:1rem}
.mobile-menu-cta .btn{width:100%;justify-content:center}
@media(min-width:768px){.mobile-menu{display:none}}
@media(max-width:767px){.nav-right .btn,.nav-right .nav-search{display:none}}

/* ── SEARCH ── */
.nav-search{display:flex;align-items:center;gap:.5rem;margin-right:.5rem}
.nav-search-btn{background:none;border:none;color:rgba(255,255,255,.6);display:flex;align-items:center;justify-content:center;padding:.4rem;border-radius:8px;transition:all .2s}
.nav-search-btn:hover{color:var(--white);background:rgba(255,255,255,.08)}
.nav-search-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.search-overlay{position:fixed;inset:0;z-index:200;background:rgba(10,15,26,.85);backdrop-filter:blur(16px);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;display:flex;align-items:flex-start;justify-content:center;padding-top:clamp(100px,15vh,180px);overflow-y:auto}
.search-overlay.open{opacity:1;visibility:visible}
.search-box{width:90%;max-width:600px}
.search-input-wrap{position:relative}
.search-input{width:100%;padding:1rem 1.2rem 1rem 3rem;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:var(--white);font-family:var(--font);font-size:1.1rem;outline:none;transition:border-color .2s}
.search-input::placeholder{color:var(--slate-400)}
.search-input:focus{border-color:var(--emerald)}
.search-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:var(--slate-400);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.search-close{position:absolute;top:1rem;right:1rem;background:none;border:none;color:var(--slate-400);font-size:1.5rem;cursor:pointer;transition:color .2s;padding:.5rem}
.search-close:hover{color:var(--white)}
.search-results{margin-top:.8rem;max-height:50vh;overflow-y:auto;display:flex;flex-direction:column;gap:.3rem}
.search-result{display:flex;align-items:center;gap:.8rem;padding:.8rem 1rem;border-radius:var(--r);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);color:var(--white);transition:all .2s;text-decoration:none}
.search-result:hover{background:rgba(59,130,246,.1);border-color:rgba(59,130,246,.3)}
.search-result-type{font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:.2rem .5rem;border-radius:4px;flex-shrink:0}
.search-result-type.service{background:rgba(59,130,246,.15);color:var(--emerald)}
.search-result-type.blog{background:rgba(245,158,11,.15);color:#f59e0b}
.search-result-title{font-size:.88rem;font-weight:500}
.search-result-desc{font-size:.72rem;color:var(--slate-400);margin-top:.1rem}
.search-empty{text-align:center;padding:2rem 1rem;color:var(--slate-400);font-size:.9rem}