@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;800&display=swap');
:root{
  --brand-hero: linear-gradient(135deg, #8b5cf6, #7c3aed, #2563eb);
  --brand-green: linear-gradient(135deg, #7c3aed, #4f46e5);
  --brand-green-200: linear-gradient(135deg, #7c3aed, #38bdf8);
  --ink:#ffffff; --ink-strong:#f6f7fb; --ink-soft:#dfe1e8;
  --accent:#8b5cf6; --hover:#22d3ee; --bg:#0b0214;
  --shadow:0 8px 24px rgba(0,0,0,.18); --shadow-lg:0 16px 36px rgba(0,0,0,.28);
  --rad:16px; --timing:cubic-bezier(.2,.8,.2,1); --maxw:1180px;
  --header-h:68px; --nav-font-size:14px; --nav-line-height:22px;
  --svc-surface-1:#0d1331; --svc-surface-2:#0a1028; --svc-border:rgba(173,197,255,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:'Montserrat',system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;font-weight:700;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;padding-top:var(--header-h)}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--timing),transform .6s var(--timing)}
.reveal.show{opacity:1;transform:none}
@keyframes scroll-left{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* HEADER */
header{width:100%;height:var(--header-h);background:rgba(10,10,22,.65);backdrop-filter:saturate(130%) blur(10px);display:flex;justify-content:space-between;align-items:center;padding:0 24px;border-bottom:1px solid rgba(255,255,255,.06);position:fixed;top:0;left:0;z-index:1000}
.container{max-width:var(--maxw);margin:0 auto;padding:0 16px}

.logo img{
  width:150px;
  height:auto;
}
nav{display:flex;align-items:center;gap:22px;height:100%}
nav a{display:inline-flex;align-items:center;justify-content:center;height:calc(var(--header-h) - 2px);color:var(--ink-strong);text-decoration:none;font-weight:800;font-size:var(--nav-font-size);line-height:var(--nav-line-height);letter-spacing:.2px;position:relative;padding:0 2px;transition:color .25s var(--timing),transform .25s var(--timing)}
nav a:hover{color:var(--accent);transform:translateY(-2px)}
nav a::after{content:'';position:absolute;bottom:10px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--hover));transition:width .35s cubic-bezier(.19,1,.22,1);border-radius:2px}
nav a:hover::after{width:100%}

.dropdown{position:relative}
.dropdown-content{position:absolute;top:calc(100% + 8px);left:0;display:flex;flex-direction:column;background:#0f1221;min-width:240px;padding:10px 0;border-radius:10px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(6px);transition:all .25s var(--timing);z-index:999;border:1px solid rgba(255,255,255,.08)}
.dropdown:hover .dropdown-content{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-content a{padding:12px 16px;font-size:14px;color:#e8eaf4;font-weight:700;line-height:22px}
.dropdown-content a:hover{background:#1a1f3a;color:#b7c4ff}

.contact-btn{background:linear-gradient(90deg,var(--accent),var(--hover));color:#fff;text-decoration:none;padding:9px 16px;border-radius:9px;font-size:14px;font-weight:800;transition:transform .25s var(--timing),box-shadow .25s var(--timing)}
.contact-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.22)}

/* HAMBURGER */
.menu-toggle{display:none;width:38px;height:38px;border:none;background:transparent;cursor:pointer;position:relative}
.menu-toggle .bar{position:absolute;left:7px;right:7px;height:3px;background:var(--ink);border-radius:3px;transition:transform .35s var(--timing),opacity .25s var(--timing),top .35s var(--timing)}
.menu-toggle .bar:nth-child(1){top:11px}
.menu-toggle .bar:nth-child(2){top:17px}
.menu-toggle .bar:nth-child(3){top:23px}
.menu-toggle.active .bar:nth-child(1){top:17px;transform:rotate(45deg)}
.menu-toggle.active .bar:nth-child(2){opacity:0}
.menu-toggle.active .bar:nth-child(3){top:17px;transform:rotate(-45deg)}

/* MOBILE NAV */
.nav-overlay{position:fixed;inset:0;background:rgba(6,20,17,.45);backdrop-filter:blur(8px);opacity:0;pointer-events:none;transition:opacity .32s var(--timing);z-index:998}
.nav-overlay.active{opacity:1;pointer-events:auto}
.m-close{display:none}

@media (max-width:900px){
  header{height:64px;padding:0 12px}
  :root{--header-h:64px}
  nav{display:none;flex-direction:column;position:fixed;top:0;right:0;height:100vh;width:78%;background:rgba(18,22,44,.92);backdrop-filter:blur(16px);padding:84px 18px 18px;box-shadow:-10px 0 30px rgba(0,0,0,.2);transition:transform .45s var(--timing);z-index:999;transform:translateX(100%)}
  nav a{color:#eef1ff;height:auto;padding:10px 2px}
  nav.active{display:flex;transform:translateX(0)}
  nav a{opacity:0;transform:translateX(12px)}
  nav.active a{animation:navIn .45s var(--timing) forwards}
  nav.active a:nth-of-type(1){animation-delay:.05s}
  nav.active a:nth-of-type(2){animation-delay:.09s}
  nav.active a:nth-of-type(3){animation-delay:.13s}
  nav.active a:nth-of-type(4){animation-delay:.17s}
  nav.active a:nth-of-type(5){animation-delay:.21s}
  @keyframes navIn{to{opacity:1;transform:none}}
  .menu-toggle{display:block}
  .contact-btn{display:none}
  .dropdown-content{position:static;display:none;background:rgba(26,31,58,.9);margin-top:8px;border-radius:8px;border:1px solid rgba(255,255,255,.06)}
  .dropdown:hover .dropdown-content{display:flex}
  .m-contact{margin-top:auto;width:100%;background:var(--accent);color:#fff;text-align:center;padding:12px 16px;border-radius:12px;text-decoration:none;font-weight:800;box-shadow:0 10px 22px rgba(10,128,106,.25);transition:transform .25s var(--timing)}
  .m-contact:active{transform:scale(.98)}
  .m-close{display:block;margin-top:10px;text-align:center;font-weight:800;color:#fff}
}

/* HERO */
.hero{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;background:var(--brand-hero);padding:34px 16px 10px;color:var(--ink);text-shadow:0 1px 0 rgba(0,0,0,.25)}
.hero-content{max-width:560px;padding:8px}
.hero-content h1{font-weight:800;font-size:48px;line-height:1.05;color:#fff;margin-bottom:10px;letter-spacing:-.3px}
.hero-content p{font-weight:700;font-size:15.5px;line-height:24.5px;color:var(--ink-strong);margin-bottom:16px}
.hero-btn{display:inline-block;font-weight:800;background:linear-gradient(90deg,var(--hover),var(--accent));color:#fff;padding:10px 24px;border-radius:42px;font-size:16px;border:2px solid rgba(255,255,255,.18);box-shadow:var(--shadow);text-decoration:none;transition:transform .25s var(--timing),box-shadow .25s var(--timing)}
.hero-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.hero-image img{width:480px;max-width:95vw;height:auto;filter:drop-shadow(0 8px 24px rgba(0,0,0,.18))}
@media (max-width:560px){.hero-content h1{font-size:36px}.hero-content p{font-size:14.5px}}

/* LOGO STRIPS */
.logo-slider{width:100%;overflow:hidden;padding:22px 0;background:#fff}
.logo-track{display:flex;align-items:center;gap:50px;animation:scroll-left 22s linear infinite;width:max-content}
.logo-track img{height:36px;opacity:.85;transition:opacity .25s var(--timing),filter .25s var(--timing);filter:grayscale(100%)}
.logo-track img:hover{filter:grayscale(0);opacity:1}

/* INFO SECTIONS */
.info-section{display:flex;flex-wrap:wrap;gap:28px;padding:48px 16px;justify-content:center;align-items:center}
.info-section .inner{max-width:var(--maxw);width:100%;display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;align-items:center}
.info-section img{max-width:460px;width:100%;height:auto;border-radius:10px;box-shadow:var(--shadow)}
.info-text{max-width:560px}
.info-text h2{font-size:22px;font-weight:800;margin-bottom:10px;letter-spacing:-.2px}
.info-text p{font-size:15px;line-height:1.7;margin-bottom:12px;color:var(--ink-soft)}
.info-section.white{background:#fff}
.info-section.white .info-text h2{color:#0d1320}
.info-section.white .info-text p{color:#2a2f3e}
.info-section.white .info-text a{display:inline-block;background:linear-gradient(90deg,var(--accent),var(--hover));padding:9px 18px;border-radius:28px;font-weight:800;font-size:14px;text-decoration:none;box-shadow:var(--shadow)}
.info-section.green{background:var(--brand-green);color:#fff;position:relative}
.info-section.green::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.08),rgba(0,0,0,.08));pointer-events:none}
.info-section.green .info-text h2{color:#fff;text-shadow:0 1px 0 rgba(0,0,0,.25)}
.info-section.green .info-text p{color:rgba(255,255,255,.92)}
.info-section.green .info-text a{display:inline-block;background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.35);padding:9px 18px;border-radius:28px;font-weight:800;font-size:14px;text-decoration:none;transition:transform .25s var(--timing),box-shadow .25s var(--timing),background .25s var(--timing)}
.info-section.green .info-text a:hover{transform:translateY(-2px);background:rgba(255,255,255,.22);box-shadow:var(--shadow)}
.info-section.dark{background:#121212;color:#fff}

/* STARLIFY */
.starlify-section{background:#121212;color:#fff;padding:48px 16px}
.starlify-section .inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.starlify-text{max-width:560px}
.starlify-text h2{font-size:22px;font-weight:800;margin-bottom:8px}
.starlify-text p{color:#e8eaf4}
.starlify-img img{max-width:460px;width:100%;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.35)}

/* WHAT WE DO */
.what-we-do-section{background:var(--brand-green);padding:48px 16px;text-align:center;position:relative}
.what-we-do-section::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.08),rgba(0,0,0,.08))}
.what-we-do-section .inner{max-width:var(--maxw);margin:0 auto;position:relative;z-index:1}
.what-we-do-section h2{font-size:22px;font-weight:800;margin-bottom:20px;color:#fff;text-shadow:0 1px 0 rgba(0,0,0,.25)}
.what-we-do-cards{display:flex;justify-content:center;gap:18px;flex-wrap:wrap}
.card{max-width:320px;background:#fff;padding:20px;border-radius:14px;box-shadow:var(--shadow);transition:transform .25s var(--timing),box-shadow .25s var(--timing)}
.card h3{font-size:16.5px;font-weight:800;margin-bottom:8px;color:#0e1220}
.card p{font-size:14.2px;line-height:1.65;color:#2b3242}

/* SERVICES GRID */
.services{position:relative;padding:56px 16px;background:radial-gradient(1200px 300px at 10% -10%, rgba(139,92,246,.18), transparent 60%), radial-gradient(1200px 300px at 90% 110%, rgba(34,211,238,.18), transparent 60%), #0a0f22;border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.services .inner{max-width:var(--maxw);margin:0 auto}
.services .title{text-align:center;margin-bottom:22px;color:#fff;font-size:26px;font-weight:800;letter-spacing:.2px}
.services .sub{text-align:center;color:#cfd3ff;margin:0 auto 28px;max-width:720px;font-size:15px;line-height:1.7}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media (max-width:1024px){.svc-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.svc-grid{grid-template-columns:1fr}}

.svc-card{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;background:linear-gradient(180deg,var(--svc-surface-1) 0%,var(--svc-surface-2) 100%);border-radius:20px;padding:24px 22px 74px;box-shadow:0 10px 26px rgba(0,0,0,.28),inset 0 1px 0 var(--svc-border),inset 0 0 0 1px rgba(255,255,255,.06);overflow:hidden;transition:transform .35s var(--timing),box-shadow .35s var(--timing),background .35s var(--timing);isolation:isolate}
.svc-card::before{content:"";position:absolute;inset:-2px;z-index:0;background:conic-gradient(from 180deg at 50% 50%, rgba(139,92,246,.35), rgba(34,211,238,.35), rgba(139,92,246,.35));filter:blur(20px);opacity:.10;transition:opacity .35s var(--timing)}
.svc-card::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(120deg,transparent 40%,rgba(255,255,255,.08) 50%,transparent 60%);transform:translateX(-120%);transition:transform .8s var(--timing);pointer-events:none}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 18px 42px rgba(0,0,0,.38),inset 0 1px 0 rgba(255,255,255,.08)}
.svc-card:hover::before{opacity:.20}
.svc-card:hover::after{transform:translateX(120%)}
.svc-icon{z-index:2;width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;background:linear-gradient(135deg, rgba(139,92,246,.18), rgba(34,211,238,.18));border:1px solid rgba(173,197,255,.28);box-shadow:0 6px 18px rgba(0,0,0,.28),0 0 0 6px rgba(139,92,246,.10),0 0 0 12px rgba(34,211,238,.06);transition:transform .35s var(--timing),box-shadow .35s var(--timing)}
.svc-card:hover .svc-icon{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.35),0 0 0 8px rgba(139,92,246,.14),0 0 0 16px rgba(34,211,238,.08)}
.svc-icon svg{width:28px;height:28px;display:block}
.svc-title{z-index:2;font-weight:800;font-size:17px;color:#fff;margin-bottom:8px}
.svc-desc{z-index:2;color:#cfd3ff;font-size:14.2px;line-height:1.65;min-height:44px}
.svc-cta{position:absolute;left:0;right:0;bottom:16px;z-index:2;display:flex;justify-content:center}
.btn-contact{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;font-weight:800;font-size:14px;text-decoration:none;color:#ffffff;background:linear-gradient(90deg,#4338ca,#0e7490);border:2px solid rgba(255,255,255,.14);transition:transform .2s var(--timing),box-shadow .25s var(--timing),background .25s var(--timing),filter .25s var(--timing);box-shadow:0 6px 16px rgba(0,0,0,.32)}
.btn-contact:hover{background:linear-gradient(90deg,#3730a3,#0b5c6b);transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.38);filter:saturate(1.05)}
.btn-contact:active{transform:translateY(1px) scale(.99);box-shadow:0 6px 18px rgba(0,0,0,.30)}
.btn-contact svg{width:16px;height:16px}
.svc-card.reveal.show{animation:svcPop .5s var(--timing) both}
@keyframes svcPop{from{transform:translateY(16px) scale(.98);opacity:0}to{transform:none;opacity:1}}

/* CUSTOMER CASE */
.customer-case-section{background:#fff;padding:48px 16px}
.customer-case-section .inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.customer-case-img img{max-width:460px;width:100%;border-radius:10px;box-shadow:var(--shadow)}
.customer-case-text{max-width:560px}
.customer-case-text h2{font-size:22px;font-weight:800;margin-bottom:8px;color:#0e1220}
.customer-case-text p{color:#2a2f3e}
.customer-case-text a{color:#0b8a5f;font-weight:800;text-decoration:none;font-size:14px}

/* PROJECTS SECTION */
.projects-section {
  background: radial-gradient(1200px 300px at 10% -10%, rgba(139,92,246,.12), transparent 60%), 
              radial-gradient(1200px 300px at 90% 110%, rgba(34,211,238,.12), transparent 60%), 
              #0a0f22;
  padding: 80px 16px;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.projects-section .inner {
  max-width: var(--maxw);
  margin: 0 auto;
}

.projects-title {
  text-align: center;
  margin-bottom: 16px;
  color: #fff;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.projects-subtitle {
  text-align: center;
  color: #cfd3ff;
  margin: 0 auto 48px;
  max-width: 600px;
  font-size: 16px;
  line-height: 1.6;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 24px;
}

.project-card {
  background: linear-gradient(180deg, var(--svc-surface-1) 0%, var(--svc-surface-2) 100%);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.25), 
              inset 0 1px 0 var(--svc-border), 
              inset 0 0 0 1px rgba(255,255,255,.06);
  transition: transform .35s var(--timing), box-shadow .35s var(--timing);
  position: relative;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0,0,0,.35), 
              inset 0 1px 0 rgba(255,255,255,.08);
}

.project-image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--timing);
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-content {
  padding: 24px;
}

.project-name {
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}

.project-desc {
  color: #cfd3ff;
  font-size: 14.5px;
  line-height: 1.6;
  margin-bottom: 20px;
  min-height: 68px;
}

.project-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background: linear-gradient(90deg, var(--accent), var(--hover));
  color: #fff;
  text-decoration: none;
  border-radius: 28px;
  font-weight: 800;
  font-size: 14px;
  transition: transform .25s var(--timing), box-shadow .25s var(--timing);
  border: 2px solid rgba(255,255,255,.15);
  box-shadow: 0 6px 20px rgba(139,92,246,.25);
  width: 100%;
  text-align: center;
}

.project-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(139,92,246,.35);
  background: linear-gradient(90deg, #7c3aed, #06b6d4);
}

/* Responsive Design for Projects */
@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .projects-section {
    padding: 60px 16px;
  }
  
  .projects-title {
    font-size: 28px;
  }
  
  .projects-subtitle {
    font-size: 15px;
    margin-bottom: 36px;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .project-image {
    height: 200px;
  }
}

@media (max-width: 480px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .project-content {
    padding: 20px;
  }
  
  .project-name {
    font-size: 17px;
  }
  
  .project-desc {
    font-size: 14px;
  }
}

/* ABOUT BAND */
.about-band{background:var(--brand-green);position:relative}
.about-band::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.08),rgba(0,0,0,.08))}
.about-wrap{max-width:var(--maxw);margin:0 auto;padding:48px 16px;display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:center;position:relative;z-index:1}
.about-title{font-size:24px;font-weight:800;color:#fff;margin-bottom:8px;text-shadow:0 1px 0 rgba(0,0,0,.25)}
.about-text p{font-size:16px;line-height:1.7;color:rgba(255,255,255,.92);margin-bottom:12px}
.about-link{display:inline-block;margin-top:2px;font-weight:800;font-size:15px;text-decoration:none;color:#fff;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);padding:8px 14px;border-radius:999px}
.about-link:hover{background:rgba(255,255,255,.26)}
.about-media img{width:100%;border-radius:10px;box-shadow:var(--shadow)}
@media (max-width:992px){.about-wrap{grid-template-columns:1fr;gap:18px}.about-media{order:2}.about-text{order:1}}

/* FOOTER */
.footer{background:var(--brand-green)}
.footer .container{max-width:var(--maxw);margin:0 auto;padding:36px 16px 22px}
.footer-top{display:grid;grid-template-columns:1fr 260px 1.2fr;gap:18px;padding:8px 0 24px}
.brand-wrap{display:flex;align-items:center;gap:12px}
.brand-text img{
  width:300px;
  height:auto;
}
.footer-links{text-align:right}
.footer-links h4{font-weight:800;font-size:16px;margin-bottom:10px;color:#fff}
.footer-links a{display:block;font-size:15px;color:#eef1ff;text-decoration:none;margin:6px 0;transition:transform .2s var(--timing),color .2s var(--timing)}
.footer-links a:hover{transform:translateX(2px);color:#cfd7ff}
.footer-contact{color:#fff;font-size:14.5px;line-height:1.7}
.footer-contact a{color:#fff;text-decoration:none;font-weight:800}
.footer-contact a:hover{text-decoration:underline}
.footer-bottom{display:grid;grid-template-columns:1fr auto auto auto;align-items:center;gap:12px;border-top:1px solid rgba(255,255,255,.12);padding-top:12px}
.copyright{font-size:13.5px;color:#f5f6ff}
.legal a{font-size:13.5px;color:#fff;font-weight:800;text-decoration:none}
.legal a:hover{text-decoration:underline}
.iso{display:flex;align-items:center;gap:8px}
.iso-badge{font-size:12px;font-weight:800;color:#fff;border:2px solid rgba(255,255,255,.9);border-radius:999px;padding:8px 14px;line-height:1}
.social{display:flex;gap:10px}
.social a{width:32px;height:32px;border-radius:6px;display:grid;place-items:center;background:#0f142a;color:#fff;text-decoration:none;transition:transform .2s var(--timing),opacity .2s}
.social a:hover{transform:translateY(-2px);opacity:.92}
.social svg{width:18px;height:18px;display:block}
@media (max-width:768px){.footer-top{grid-template-columns:1fr;text-align:center}.footer-links{text-align:center}.footer-contact{text-align:center}.footer-bottom{grid-template-columns:1fr;gap:8px}.social{justify-content:center}}

/* SCROLL TO TOP BUTTON */
.scroll-to-top{position:fixed;right:20px;bottom:86px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--hover));color:#fff;display:grid;place-items:center;box-shadow:0 8px 20px rgba(0,0,0,.18);cursor:pointer;z-index:1002;opacity:0;pointer-events:none;transform:translateY(16px);transition:opacity .3s var(--timing),transform .3s var(--timing),box-shadow .3s var(--timing)}
.scroll-to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.scroll-to-top:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.25)}
.scroll-to-top svg{width:20px;height:20px}
@media (max-width:420px){.scroll-to-top{right:12px;bottom:78px}}

/* CHAT */
.chat-overlay{position:fixed;inset:0;background:rgba(0,0,0,.25);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .25s var(--timing);z-index:1001}
.chat-overlay.show{opacity:1;pointer-events:auto}
.chat-fab{position:fixed;right:20px;bottom:22px;width:56px;height:56px;border-radius:50%;background:radial-gradient(120% 120% at 100% 0%,#42c2a7 0%,#0a7a64 60%);color:#fff;display:grid;place-items:center;box-shadow:0 10px 24px rgba(0,0,0,.18);cursor:pointer;z-index:1002;transition:transform .2s var(--timing),box-shadow .2s var(--timing)}
.chat-fab:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.22)}
.chat-fab svg{width:26px;height:26px}
.chat-fab .pulse{position:absolute;inset:-6px;border-radius:50%;border:2px solid #42c2a7;opacity:.6;animation:pulse 1.8s ease-out infinite}
@keyframes pulse{0%{transform:scale(.9);opacity:.6}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}
.chat-box{position:fixed;right:20px;bottom:86px;width:340px;max-width:calc(100vw - 28px);background:#fff;border-radius:16px;box-shadow:0 18px 40px rgba(0,0,0,.25);display:flex;flex-direction:column;overflow:hidden;z-index:1003;transform:translateY(16px) scale(.98);opacity:0;pointer-events:none;transition:transform .28s var(--timing),opacity .28s var(--timing)}
.chat-box.open{transform:none;opacity:1;pointer-events:auto}
.chat-head{background:linear-gradient(90deg,var(--accent),var(--hover));color:#fff;padding:12px 14px;display:flex;align-items:center;justify-content:space-between}
.chat-head .tit{font-weight:800}
.chat-head .mini{opacity:.9;font-size:12px}
.chat-head button{background:transparent;border:0;color:#fff;cursor:pointer;padding:6px}
.chat-body{padding:12px;height:300px;overflow:auto;background:#f8fbf9}
.msg{display:flex;margin:8px 0}
.msg .bubble{padding:9px 12px;border-radius:12px;max-width:78%;box-shadow:var(--shadow);font-size:14px;line-height:1.45}
.msg.user{justify-content:flex-end}
.msg.user .bubble{background:#e6fff6}
.msg.bot .bubble{background:#fff}
.chat-input{display:flex;gap:8px;padding:10px;border-top:1px solid #eef1ef;background:#fff}
.chat-input input{flex:1;padding:10px 12px;border-radius:10px;border:1px solid #dfe8e4;outline:none;font-size:14px}
.chat-input button{background:var(--accent);color:#fff;font-weight:800;border:0;border-radius:10px;padding:10px 14px;cursor:pointer;transition:transform .15s var(--timing),opacity .15s var(--timing)}
.chat-input button:active{transform:scale(.98)}
@media (max-width:420px){.chat-box{right:10px;left:10px;width:auto}.chat-fab{right:12px;bottom:16px}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}