/* ===== GraphiLab — পাবলিক সাইটের স্টাইল =====
   রং অ্যাডমিন প্যানেল থেকে বদলানো যায় (layout-এ :root ওভাররাইড হয়) */
:root{
  --white:#FFFFFF;
  --dark:#23262C;        /* মূল কালো */
  --dark-2:#2E323A;      /* কালোর হালকা স্তর */
  --dark-soft:#5B606B;   /* সাদার উপর হালকা লেখা */
  --yellow:#FFC107;      /* মূল হলুদ */
  --yellow-deep:#E6A800; /* হলুদ বাটনের hover */
  --yellow-tint:#FFF6D9; /* হলুদের খুব হালকা ছায়া */
  --line:#E7E8EB;
  --paper:#F7F7F8;
  --radius-lg:28px;
  --radius:16px;
  --logo:"Amaranth", "Anek Bangla", sans-serif;
  --display:"Anek Bangla", "Hind Siliguri", sans-serif;
  --body:"Hind Siliguri", system-ui, sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--body);color:var(--dark);background:var(--white);line-height:1.65;font-size:17px;overflow-x:hidden}
img,svg{display:block}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid var(--dark);outline-offset:3px;border-radius:6px}
.on-dark :focus-visible,.final :focus-visible,.dock :focus-visible{outline-color:var(--yellow)}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 18px}
.ico{width:22px;height:22px;flex:none;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ===== হেডার (হলুদের উপর) ===== */
.top{position:sticky;top:0;z-index:30;background:var(--yellow);transition:box-shadow .2s}
.top.scrolled{box-shadow:0 1px 0 rgba(35,38,44,.12)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none}
.logo img{width:38px;height:38px;border-radius:10px}
.logo span{font-family:var(--logo);font-weight:700;font-size:26px;line-height:1;color:var(--dark);letter-spacing:-.01em}
.nav{display:none;gap:28px;font-size:15px;font-weight:600}
.nav a{text-decoration:none;color:var(--dark);opacity:.75}
.nav a:hover{opacity:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:600;text-decoration:none;border-radius:999px;transition:background .2s,transform .15s}
.btn:active{transform:scale(.97)}
.btn-sm{background:var(--dark);color:var(--yellow);padding:9px 16px;font-size:15px}
.btn-sm .ico{width:18px;height:18px}

/* ===== হিরো: পুরো হলুদ ===== */
.hero{background:var(--yellow);padding:28px 0 0;overflow:hidden}
.hero-grid{display:grid;gap:30px}
.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(40px,11vw,72px);line-height:1.1;letter-spacing:-.02em}
/* সিলেক্ট করা টেক্সট লেয়ারের মতো শিরোনাম */
.layer{position:relative;display:inline-block;padding:2px 10px;margin:30px 0 0 -10px}
.layer-box{position:absolute;inset:0;border:2px dashed var(--dark);border-radius:4px;pointer-events:none;animation:draw .7s .3s both cubic-bezier(.2,.8,.2,1)}
.layer-box i{position:absolute;width:12px;height:12px;background:var(--white);border:2px solid var(--dark);border-radius:3px}
.layer-box i:nth-child(1){top:-7px;left:-7px}.layer-box i:nth-child(2){top:-7px;right:-7px}
.layer-box i:nth-child(3){bottom:-7px;left:-7px}.layer-box i:nth-child(4){bottom:-7px;right:-7px}
.layer-box s{position:absolute;left:50%;top:-24px;width:2px;height:16px;background:var(--dark);transform:translateX(-50%)}
.layer-box s::before{content:"";position:absolute;top:-8px;left:50%;width:14px;height:14px;transform:translateX(-50%);border-radius:50%;background:var(--white);border:2px solid var(--dark)}
@keyframes draw{from{opacity:0;transform:scale(1.08)}to{opacity:1;transform:none}}
.lead{margin-top:18px;font-size:18px;color:#3A3D44;max-width:34em}
.cta{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.btn-dl{background:var(--dark);color:var(--yellow);padding:16px 26px;font-size:18px}
.btn-dl:hover{background:#000}
.btn-ghost{color:var(--dark);padding:14px 22px;border:2px solid var(--dark)}
.btn-ghost:hover{background:rgba(35,38,44,.08)}
.meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;font-weight:500;color:#3A3D44}
.meta span{display:flex;align-items:center;gap:6px}
.meta .ico{width:16px;height:16px}

/* ফোন মকআপ — নিচ থেকে উঠে আসা, হলুদ থেকে সাদায় */
.phone-stage{display:flex;justify-content:center;position:relative;height:430px;overflow:hidden}
.phone{position:relative;width:min(290px,78vw);aspect-ratio:9/18.5;align-self:flex-start;background:var(--dark);border-radius:40px;padding:10px;box-shadow:0 30px 60px -24px rgba(35,38,44,.6)}
.screen{height:100%;border-radius:31px;background:#1B1D22;overflow:hidden;display:flex;flex-direction:column}
.s-bar{display:flex;align-items:center;justify-content:space-between;padding:22px 16px 10px;color:#fff}
.s-bar .ico{width:19px;height:19px;opacity:.85}
.s-bar span{font-family:var(--logo);font-weight:700;font-size:17px}
.s-canvas{flex:1;margin:4px 12px;border-radius:14px;position:relative;overflow:hidden;background:#2E323A}
.s-canvas .sun{position:absolute;width:52%;aspect-ratio:1;border-radius:50%;background:var(--yellow);right:-10%;top:8%}
.s-canvas .hill{position:absolute;left:-10%;right:-10%;bottom:-20%;height:44%;border-radius:50%;background:#3C414B}
.s-text{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%) rotate(-4deg);font-family:var(--display);font-weight:800;color:#fff;font-size:28px;line-height:1.1;padding:6px 10px;white-space:nowrap}
.s-text::after{content:"";position:absolute;inset:0;border:1.5px dashed var(--yellow);border-radius:3px}
.s-tools{display:flex;justify-content:space-around;padding:14px 8px 22px;color:#8D929C}
.s-tools div{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:10px}
.s-tools div.on{color:var(--yellow)}
.s-tools .ico{width:20px;height:20px}

/* ===== সাধারণ সেকশন ===== */
section{padding:60px 0}
.sec-h{font-family:var(--display);font-weight:700;font-size:clamp(28px,7.5vw,42px);line-height:1.2;letter-spacing:-.01em;max-width:18em}
.sec-p{margin-top:10px;color:var(--dark-soft);max-width:36em}
.alt{background:var(--paper)}

/* টুলবার */
.toolbar{margin-top:26px;display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x mandatory;padding:12px 18px 8px;margin-left:-18px;margin-right:-18px;scrollbar-width:none}
.toolbar::-webkit-scrollbar{display:none}
.tool{scroll-snap-align:start;flex:none;position:relative;display:flex;flex-direction:column;align-items:center;gap:8px;min-width:86px;padding:14px 10px;border-radius:var(--radius);background:var(--white);border:1.5px solid var(--line);font-size:14px;font-weight:600;color:var(--dark-soft);transition:border-color .2s,color .2s,background .2s}
.tool .ico{width:26px;height:26px}
.tool[aria-selected="true"]{border-color:var(--dark);background:var(--dark);color:var(--yellow)}
.tool .new{position:absolute;top:-8px;right:-4px;font-size:11px;background:var(--yellow);color:var(--dark);border-radius:99px;padding:0 7px;line-height:18px;font-weight:700}
.tool-panel{margin-top:14px;background:var(--dark);color:#fff;border-radius:var(--radius-lg);padding:26px 22px;display:grid;gap:14px}
.tool-panel h3{font-family:var(--display);font-size:24px;font-weight:700;color:var(--yellow)}
.tool-panel p{color:#C5C8CE}
.tool-panel ul{list-style:none;display:grid;gap:8px}
.tool-panel li{display:flex;gap:10px;align-items:flex-start;font-size:16px}
.tool-panel li .ico{width:18px;height:18px;color:var(--yellow);margin-top:5px}

/* আগে/পরে স্লাইডার */
.ba-wrap{margin-top:28px;display:grid;gap:22px}
.ba{position:relative;aspect-ratio:4/3;border-radius:var(--radius-lg);overflow:hidden;user-select:none;touch-action:pan-y;background:var(--dark)}
.ba-layer{position:absolute;inset:0}
.ba-before{background:linear-gradient(180deg,#8FD3FF 0%,#C9ECFF 55%,#7BC67E 55%,#4E9E55 100%)}
.ba-before .tree{position:absolute;bottom:38%;width:16%;aspect-ratio:1;border-radius:50%;background:#2F7A3A}
.ba-after{background-color:#fff;background-image:linear-gradient(45deg,#E7E8EB 25%,transparent 25%,transparent 75%,#E7E8EB 75%),linear-gradient(45deg,#E7E8EB 25%,transparent 25%,transparent 75%,#E7E8EB 75%);background-size:22px 22px;background-position:0 0,11px 11px;clip-path:inset(0 0 0 var(--pos,50%))}
.ba-subject{position:absolute;left:50%;bottom:0;width:46%;transform:translateX(-50%)}
.ba-line{position:absolute;top:0;bottom:0;left:var(--pos,50%);width:3px;background:var(--yellow);transform:translateX(-50%);pointer-events:none}
.ba-knob{position:absolute;top:50%;left:50%;width:46px;height:46px;border-radius:50%;background:var(--yellow);transform:translate(-50%,-50%);display:grid;place-items:center;color:var(--dark);box-shadow:0 6px 16px rgba(35,38,44,.35)}
.ba-tag{position:absolute;top:14px;font-size:13px;font-weight:600;padding:3px 12px;border-radius:99px;background:var(--dark);color:#fff;pointer-events:none}
.ba-tag.l{left:14px}.ba-tag.r{right:14px}
.ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.ba-note{display:grid;gap:14px;align-content:center}
.ba-note p{color:var(--dark-soft)}
.pill-row{display:flex;flex-wrap:wrap;gap:8px}
.pill{font-size:14px;font-weight:500;padding:5px 14px;border-radius:99px;background:var(--yellow-tint);border:1px solid #F5DE95}

/* স্ক্রিনশট */
.shots{margin-top:26px;display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 18px 14px;margin-left:-18px;margin-right:-18px;scrollbar-width:none}
.shots::-webkit-scrollbar{display:none}
.shot{flex:none;scroll-snap-align:center;width:min(210px,58vw)}
.shot-frame{aspect-ratio:9/18;border-radius:26px;border:7px solid var(--dark);background:var(--white);display:grid;place-items:center;text-align:center;padding:14px;color:var(--dark-soft);font-size:14px}
.shot-frame .ico{width:32px;height:32px;margin:0 auto 8px;color:var(--dark)}
.shot:nth-child(odd) .shot-frame{background:var(--yellow-tint)}
.shot figcaption{margin-top:10px;font-weight:600;font-size:15px;text-align:center}

/* ইন্সটল ধাপ */
.steps{margin-top:26px;list-style:none;display:grid;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:44px 1fr;gap:16px;padding-bottom:26px;position:relative}
.steps li::before{content:counter(s);width:44px;height:44px;border-radius:50%;background:var(--yellow);color:var(--dark);font-family:var(--display);font-weight:800;font-size:19px;display:grid;place-items:center;position:relative;z-index:1}
.steps li:not(:last-child)::after{content:"";position:absolute;left:21px;top:44px;bottom:0;width:2px;background:var(--line)}
.steps h3{font-size:18px;font-weight:600;margin-top:8px}
.steps p{color:var(--dark-soft);font-size:16px}
.warn{display:flex;gap:12px;padding:16px;border-radius:var(--radius);background:var(--yellow-tint);border:1px solid #F5DE95;font-size:15px}
.warn .ico{color:#B07D00;margin-top:2px}

/* চেঞ্জলগ */
.log{margin-top:24px;display:grid;gap:14px}
.log-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.log-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.log-head b{font-family:var(--display);font-size:20px}
.log-head span{font-size:14px;color:var(--dark-soft)}
.log-item ul{margin-top:8px;padding-left:20px;color:var(--dark-soft);font-size:16px}
.log-item.current{border:2px solid var(--dark)}
.badge{font-size:12px;font-weight:700;background:var(--yellow);color:var(--dark);border-radius:99px;padding:1px 9px;margin-left:8px;vertical-align:middle}

/* FAQ */
.faq{margin-top:24px;display:grid;gap:10px}
.faq details{background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.faq details[open]{border-color:var(--dark)}
.faq summary{list-style:none;cursor:pointer;padding:16px 18px;display:flex;justify-content:space-between;align-items:center;gap:12px;font-weight:600;font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.faq summary .ico{transition:transform .25s;width:28px;height:28px;padding:5px;border-radius:50%;background:var(--yellow)}
.faq details[open] summary .ico{transform:rotate(45deg)}
.faq details p{padding:0 18px 18px;color:var(--dark-soft);font-size:16px}

/* শেষ CTA */
.final{background:var(--dark);color:#fff;border-radius:var(--radius-lg);padding:38px 22px;display:grid;gap:24px}
.final-logo{width:64px;height:64px;border-radius:16px}
.final h2{font-family:var(--display);font-size:clamp(30px,8vw,46px);line-height:1.15;font-weight:800;margin-top:16px}
.final p{color:#C5C8CE}
.btn-yellow{background:var(--yellow);color:var(--dark);padding:16px 26px;font-size:18px;width:100%}
.btn-yellow:hover{background:var(--yellow-deep)}
.qr{display:flex;gap:14px;align-items:center;font-size:14px;color:#C5C8CE}
.qr-box{width:84px;height:84px;background:#fff;border-radius:12px;padding:8px;flex:none}

footer{padding:34px 0 120px;font-size:15px;color:var(--dark-soft);border-top:1px solid var(--line)}
footer .wrap{display:grid;gap:18px}
.f-links{display:flex;flex-wrap:wrap;gap:10px 22px}
.f-links a{text-decoration:none;display:flex;gap:6px;align-items:center}
.f-links a:hover{color:var(--dark)}
.f-links .ico{width:18px;height:18px}

/* মোবাইলে নিচে স্থির ডাউনলোড বার */
.dock{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:40;display:flex;align-items:center;gap:12px;padding:10px 10px 10px 10px;background:var(--dark);color:#fff;border-radius:20px;box-shadow:0 16px 36px -12px rgba(35,38,44,.6);transform:translateY(140%);transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.dock.show{transform:none}
.dock img{width:42px;height:42px;border-radius:11px;border:1px solid #3C414B}
.dock-info{flex:1;min-width:0;line-height:1.3}
.dock-info b{display:block;font-family:var(--logo);font-size:18px}
.dock-info span{font-size:13px;color:#A9ADB5}
.dock .btn{background:var(--yellow);color:var(--dark);padding:11px 18px;font-size:15px}

/* ===== বড় স্ক্রিন ===== */
@media (min-width:760px){
  .nav{display:flex}
  .cta{flex-direction:row}
  .ba-wrap{grid-template-columns:1.3fr 1fr;align-items:center}
  .tool-panel{grid-template-columns:1fr 1fr;padding:32px}
  .final{grid-template-columns:1.4fr 1fr;align-items:center;padding:52px}
  .btn-yellow{width:auto}
  .log{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:960px){
  .hero{padding-top:56px}
  .hero-grid{grid-template-columns:1.15fr .85fr;align-items:center}
  .hero-grid > div:first-child{padding-bottom:56px}
  .phone-stage{height:520px;align-self:end}
  section{padding:84px 0}
  .toolbar,.shots{margin-left:0;margin-right:0;padding-left:0;padding-right:0}
  .dock{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ===== নোটিশ বার ===== */
.notice{background:var(--dark);color:var(--yellow);font-size:14px;font-weight:600;text-align:center;padding:8px 44px 8px 16px;position:relative}
.notice a{color:inherit}
.notice button{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:30px;height:30px;display:grid;place-items:center;color:#fff;opacity:.7}
.notice button .ico{width:18px;height:18px}

/* আসল আগে/পরে ছবি আপলোড করা থাকলে */
.ba-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba-after .ba-img{object-fit:cover}

/* আসল স্ক্রিনশট */
.shot-frame.has-img{padding:0;background:var(--dark)}
.shot-frame img{width:100%;height:100%;object-fit:cover;display:block}

.btn[aria-disabled="true"]{opacity:.55;pointer-events:none}
.qr-box svg{width:100%;height:100%;display:block}

/* অ্যাডমিন থেকে আপলোড করা নিজের SVG আইকন */
.ico.ico-custom{fill:currentColor;stroke:none;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter}