/* ===== SIGNAVERSE COMMON CSS (header + footer + menu + floating buttons) =====
   Link once in every page <head>:  <link rel="stylesheet" href="/css/common.css">  */
:root{
  --accent:#FF4D2E;--accent-dark:#E63E20;--accent-soft:#FFF1ED;
  --bg:#fff;--bg-alt:#F8F7F4;--bg-dark:#0A0A0A;
  --text:#111;--text-muted:#6b6b6b;--border:rgba(0,0,0,.08);
  --whatsapp:#25D366;--radius:12px;--radius-sm:8px;--max-width:1200px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}

/* HEADER */
.header{position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:100;padding:14px 0}
.nav{display:flex;align-items:center;justify-content:space-between}
.logo-link{display:flex;align-items:center;text-decoration:none}
.logo-image{height:58px;width:auto;display:block}
.nav-links{display:flex;gap:32px;align-items:center}
.nav-links a{color:var(--text);text-decoration:none;font-size:15px;font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:20px}
.header-phone{display:inline-flex;align-items:center;gap:8px;color:var(--text);text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap}
.header-phone svg{width:18px;height:18px;color:var(--accent);flex-shrink:0}
.header-phone:hover{color:var(--accent)}
.btn-cta{background:var(--accent);color:#fff;padding:11px 22px;border-radius:50px;font-weight:600;font-size:14px;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:all .2s ease;border:none;cursor:pointer}
.btn-cta:hover{background:var(--accent-dark);transform:translateY(-1px)}
@media(max-width:1000px){
  .header-phone span{display:none}
  .header-phone{width:40px;height:40px;justify-content:center;border-radius:50%;background:var(--accent-soft)}
  .nav-right{gap:10px}
}
@media(max-width:768px){
  .logo-image{height:46px}
  .nav-links{display:none}
  .btn-cta{padding:10px 16px;font-size:13px}
}

/* MOBILE MENU */
.hamburger{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;background:transparent;border:none;cursor:pointer;padding:0;margin-right:8px;order:-1;z-index:210}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:190;opacity:0;transition:opacity .25s ease}
.mobile-menu-overlay.active{display:block;opacity:1}
.mobile-menu{position:fixed;top:0;right:-300px;width:280px;max-width:80vw;height:100vh;background:#fff;z-index:200;box-shadow:-8px 0 30px rgba(0,0,0,.15);transition:right .3s ease;display:flex;flex-direction:column;padding:90px 28px 28px}
.mobile-menu.active{right:0}
.mobile-menu a{display:block;color:var(--text);text-decoration:none;font-size:17px;font-weight:600;padding:14px 0;border-bottom:1px solid var(--border)}
.mobile-menu a:hover,.mobile-menu a.active{color:var(--accent)}
.mobile-menu .btn-cta{margin-top:24px;justify-content:center;text-align:center;color:#fff;border:none}
@media(max-width:768px){.hamburger{display:flex}}

/* FOOTER */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-logo-image{height:72px;width:auto;display:block;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.6;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px;font-size:14px}
.footer-col a{color:rgba(255,255,255,.6);text-decoration:none;font-size:14px}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:30px;display:flex;justify-content:space-between;align-items:center;font-size:13px;flex-wrap:wrap;gap:12px}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}

/* FLOATING BUTTONS */
.float-contact{position:fixed;bottom:24px;right:24px;z-index:99;display:flex;flex-direction:column;gap:14px;align-items:flex-end}
.float-btn{width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;color:#fff;transition:transform .2s;position:relative;box-shadow:0 6px 20px rgba(0,0,0,.2)}
.float-btn:hover{transform:scale(1.1)}
.float-btn.whatsapp{background:var(--whatsapp);box-shadow:0 8px 24px rgba(37,211,102,.4)}
.float-btn.call{background:var(--accent);box-shadow:0 8px 24px rgba(255,77,46,.4)}
.float-btn.whatsapp::before{content:'';position:absolute;inset:0;border-radius:50%;border:2px solid var(--whatsapp);animation:ripple 2s infinite}
@keyframes ripple{0%{transform:scale(1);opacity:1}100%{transform:scale(1.6);opacity:0}}
@media(max-width:768px){.float-contact{bottom:18px;right:18px;gap:12px}.float-btn{width:52px;height:52px}}
.icon-svg{width:28px;height:28px}