/* ============ zero tlogz — design system ============ */
:root{
  --green:#0b7a4b;
  --green-dark:#075c38;
  --green-soft:#e6f4ec;
  --accent:#f59e0b;
  --accent-soft:#fff4dd;
  --red:#dc2626;
  --ink:#12241c;
  --muted:#5b6b62;
  --bg:#f5f8f6;
  --card:#ffffff;
  --line:#dfe8e2;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 6px 24px rgba(12,60,38,.08);
  --shadow-lg:0 16px 48px rgba(12,60,38,.14);
  --font:'Hind Siliguri','Noto Sans Bengali','SolaimanLipi','Kalpurush',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;background:var(--bg)}
body{
  font-family:var(--font);
  background:transparent;
  color:var(--ink);
  line-height:1.7;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* ---------- interactive background texture (js/background.js) ---------- */
#zt-bg{
  position:fixed;inset:0;width:100%;height:100%;
  z-index:-1;pointer-events:none;display:block;
}
:root{--mx:0;--my:0}
img{max-width:100%}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-dark)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.35rem;color:var(--ink);white-space:nowrap}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--green) 0%,#12a067 60%,#1cc07e 100%);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:1.15rem;
  box-shadow:0 4px 14px rgba(11,122,75,.35);
}
.logo small{display:block;font-size:.62rem;font-weight:600;color:var(--muted);letter-spacing:.14em;line-height:1;margin-top:2px}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{
  padding:8px 13px;border-radius:999px;color:var(--muted);font-weight:600;font-size:.95rem;
  transition:.18s;
}
.nav a:hover{background:var(--green-soft);color:var(--green-dark)}
.nav a.active{background:var(--green);color:#fff}
.nav-toggle{display:none;margin-left:auto;background:none;border:1.5px solid var(--line);border-radius:10px;width:42px;height:42px;font-size:1.25rem;color:var(--ink)}
@media(max-width:860px){
  .nav{
    display:none;position:absolute;top:66px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;padding:12px 16px 18px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow);margin:0;
  }
  .nav.open{display:flex}
  .nav-toggle{display:block}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 420px at 85% -10%,rgba(28,192,126,.22),transparent 60%),
    radial-gradient(700px 380px at -10% 110%,rgba(245,158,11,.16),transparent 60%),
    linear-gradient(160deg,#0b7a4b 0%,#0a6b42 55%,#075c38 100%);
  color:#fff;
  padding:72px 0 84px;
}
/* mouse-following light + dot texture inside hero */
.hero::before{
  content:'';position:absolute;inset:-40px;pointer-events:none;
  background-image:radial-gradient(circle,rgba(255,255,255,.16) 1px,transparent 1.6px);
  background-size:30px 30px;opacity:.5;
  transform:translate(calc(var(--mx) * -16px),calc(var(--my) * -16px));
  transition:transform .35s ease-out;
  -webkit-mask-image:radial-gradient(900px 480px at 72% 18%,#000 0%,transparent 78%);
  mask-image:radial-gradient(900px 480px at 72% 18%,#000 0%,transparent 78%);
}
.hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(460px 320px at calc(50% + var(--mx) * 30%) calc(30% + var(--my) * 36%),rgba(255,255,255,.13),transparent 72%);
  transition:background .3s ease-out;
}
.hero>.wrap{position:relative;z-index:2}
.hero h1{font-size:clamp(1.9rem,4.6vw,3.15rem);line-height:1.28;font-weight:800;letter-spacing:-.01em;max-width:20em}
.hero h1 .hl{color:#ffd979}
.hero p.sub{margin-top:16px;font-size:clamp(1.02rem,2vw,1.22rem);opacity:.94;max-width:38em}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-badges span{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:7px 15px;border-radius:999px;font-size:.92rem;font-weight:600;backdrop-filter:blur(4px);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-deco{position:absolute;right:-40px;bottom:-50px;opacity:.16;pointer-events:none;
  transform:translate(calc(var(--mx) * 22px),calc(var(--my) * 18px));transition:transform .45s ease-out}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;border:none;font-weight:700;font-size:1.02rem;
  transition:.18s;line-height:1.35;
}
.btn-primary{background:var(--accent);color:#3a2a00;box-shadow:0 6px 18px rgba(245,158,11,.35)}
.btn-primary:hover{transform:translateY(-1px);background:#ffb020}
.btn-green{background:var(--green);color:#fff;box-shadow:0 6px 18px rgba(11,122,75,.28)}
.btn-green:hover{background:var(--green-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border:1.6px solid rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{background:#fff;color:var(--green-dark);border:1.6px solid var(--line)}
.btn-outline:hover{border-color:var(--green);background:var(--green-soft)}
.btn-sm{padding:8px 14px;font-size:.92rem;border-radius:10px}
.btn-danger{background:#fee2e2;color:#b91c1c}
.btn-danger:hover{background:#fecaca}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ---------- Sections & cards ---------- */
.section{padding:56px 0}
.section-head{max-width:720px;margin-bottom:30px}
.section-head .kicker{
  display:inline-block;background:var(--green-soft);color:var(--green-dark);
  font-weight:700;font-size:.85rem;letter-spacing:.06em;
  padding:5px 13px;border-radius:999px;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.55rem,3.2vw,2.15rem);line-height:1.35;font-weight:800}
.section-head p{margin-top:10px;color:var(--muted);font-size:1.05rem}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.custom-2{grid-template-columns:1fr !important}}
@media(max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.tool-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  box-shadow:var(--shadow);transition:.2s;position:relative;overflow:hidden;
}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c6ddd0}
.tool-card .icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:var(--green-soft);color:var(--green-dark);font-size:1.5rem;
}
.tool-card h3{font-size:1.18rem;font-weight:700;line-height:1.4}
.tool-card p{color:var(--muted);font-size:.97rem;flex:1}
.tool-card .go{font-weight:700;color:var(--green);display:inline-flex;align-items:center;gap:6px}
.tool-card .tag{
  position:absolute;top:16px;right:16px;background:var(--accent-soft);color:#92600a;
  font-size:.74rem;font-weight:700;padding:4px 10px;border-radius:999px;
}
.tool-card.wide{grid-column:span 2}
@media(max-width:620px){.tool-card.wide{grid-column:span 1}}

/* ---------- Feature strip ---------- */
.feature-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature-strip .grid{gap:0}
.feature-item{padding:28px 22px;display:flex;gap:14px;align-items:flex-start}
.feature-item .fi-icon{
  width:44px;height:44px;flex:0 0 auto;border-radius:12px;background:var(--accent-soft);
  display:grid;place-items:center;font-size:1.3rem;
}
.feature-item h4{font-size:1.02rem;font-weight:700}
.feature-item p{color:var(--muted);font-size:.92rem;line-height:1.6}

/* ---------- Page head (tool pages) ---------- */
.page-head{
  background:linear-gradient(150deg,#0b7a4b,#0a6b42 70%);
  color:#fff;padding:44px 0 40px;
}
.crumb{font-size:.9rem;opacity:.85;margin-bottom:10px}
.crumb a{color:#ffe6ae;font-weight:600}
.crumb a:hover{color:#fff}
.page-head h1{font-size:clamp(1.65rem,3.6vw,2.35rem);font-weight:800;line-height:1.3}
.page-head p{margin-top:10px;opacity:.92;max-width:44em;font-size:1.05rem}

/* ---------- Panels & forms ---------- */
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);
}
.panel h2{font-size:1.25rem;font-weight:800;margin-bottom:14px}
.panel h3{font-size:1.05rem;font-weight:700;margin:18px 0 10px}
.field{margin-bottom:15px}
.field label{display:block;font-weight:600;font-size:.93rem;margin-bottom:6px;color:#274237}
.field .hint{font-size:.82rem;color:var(--muted);margin-top:4px}
.input,select.input,textarea.input{
  width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:11px;
  background:#fcfefd;outline:none;transition:.15s;
}
.input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(11,122,75,.14);background:#fff}
textarea.input{resize:vertical;min-height:90px}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row>.field{flex:1;min-width:170px}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}

/* ---------- Tabs ---------- */
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px;background:#eef4f0;padding:6px;border-radius:13px}
.tab-btn{
  border:none;background:transparent;padding:10px 18px;border-radius:10px;
  font-weight:700;font-size:.97rem;color:var(--muted);transition:.15s;
}
.tab-btn:hover{color:var(--green-dark)}
.tab-btn.active{background:#fff;color:var(--green-dark);box-shadow:0 2px 8px rgba(12,60,38,.12)}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeUp .25s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- Dropzone / file list ---------- */
.dropzone{
  border:2px dashed #b9cfc2;border-radius:14px;padding:34px 20px;text-align:center;
  background:#f8fbf9;transition:.18s;cursor:pointer;
}
.dropzone:hover,.dropzone.drag{border-color:var(--green);background:var(--green-soft)}
.dropzone .dz-icon{font-size:2.2rem;line-height:1}
.dropzone p{color:var(--muted);margin-top:8px;font-size:.97rem}
.dropzone strong{color:var(--green-dark)}
.file-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.file-item{
  display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:10px;padding:9px 13px;font-size:.93rem;
}
.file-item .fname{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.file-item .fsize{color:var(--muted);font-size:.85rem}
.file-item .fremove{background:none;border:none;color:var(--red);font-size:1.15rem;padding:2px 8px;border-radius:8px}
.file-item .fremove:hover{background:#fee2e2}

/* ---------- Stats / result boxes ---------- */
.stat-row{display:flex;gap:14px;flex-wrap:wrap;margin:16px 0}
.stat{
  flex:1;min-width:150px;background:#fff;border:1px solid var(--line);border-radius:13px;
  padding:16px 18px;
}
.stat .st-label{font-size:.86rem;color:var(--muted);font-weight:600}
.stat .st-value{font-size:1.45rem;font-weight:800;color:var(--green-dark);margin-top:2px;line-height:1.25}
.stat .st-value.warn{color:#b45309}
.notice{
  display:flex;gap:10px;align-items:flex-start;background:var(--accent-soft);
  border:1px solid #f3dfae;color:#7a5a12;border-radius:12px;padding:13px 16px;font-size:.93rem;line-height:1.65;
}
.notice.green{background:var(--green-soft);border-color:#bfe3cd;color:#0d5c3b}
.notice.info{background:#e8f1fb;border-color:#c4d9f0;color:#1d4e7c}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:#fff}
table.data{width:100%;border-collapse:collapse;font-size:.95rem;min-width:520px}
table.data th{
  background:#eef4f0;text-align:left;padding:11px 14px;font-weight:700;font-size:.88rem;
  color:#2c4639;border-bottom:1.5px solid var(--line);white-space:nowrap;
}
table.data td{padding:10px 14px;border-bottom:1px solid #edf2ef;vertical-align:middle}
table.data tr:last-child td{border-bottom:none}
table.data tr.total td{font-weight:800;background:#f7fbf9}
.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---------- Steps / FAQ ---------- */
.steps{counter-reset:step;display:grid;gap:14px;margin-top:8px}
.step{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:13px;padding:15px 18px;
}
.step::before{
  counter-increment:step;content:counter(step);
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;background:var(--green);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:.95rem;
}
.step h4{font-size:1rem;font-weight:700}
.step p{color:var(--muted);font-size:.93rem;margin-top:2px}
details.faq{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:10px;
}
details.faq summary{
  cursor:pointer;font-weight:700;padding:15px 0;list-style:none;display:flex;justify-content:space-between;
  align-items:center;gap:12px;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:'＋';color:var(--green);font-size:1.2rem;flex:0 0 auto}
details.faq[open] summary::after{content:'－'}
details.faq .faq-body{padding:0 0 16px;color:var(--muted);font-size:.96rem;line-height:1.75}

/* ---------- Typing pad ---------- */
.typing-stage{position:relative}
.typing-input{
  width:100%;min-height:170px;padding:18px;border-radius:14px;border:1.5px solid var(--line);
  font-size:1.32rem;line-height:2;font-family:var(--font);background:#fff;resize:vertical;outline:none;
}
.typing-input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(11,122,75,.13)}
.bangla-out{
  width:100%;min-height:170px;padding:18px;border-radius:14px;border:1.5px solid #cfe5d8;
  font-size:1.55rem;line-height:2.05;background:#fbfefc;white-space:pre-wrap;word-break:break-word;
}
.bangla-out:empty::before{content:'এখানে আপনার বাংলা লেখা দেখা যাবে…';color:#a3b5ab;font-size:1.15rem}
.kbd-table td{font-size:1.02rem}
.kbd-table .key{
  display:inline-block;background:#eef4f0;border:1px solid var(--line);border-bottom-width:2.5px;
  border-radius:7px;padding:1px 10px;font-weight:700;font-size:.92rem;font-family:ui-monospace,monospace;
}
.counter-line{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-top:10px;font-weight:600}

/* ---------- Image / photo tools ---------- */
.canvas-wrap{
  background:
    repeating-conic-gradient(#f0f0f0 0% 25%,#fff 0% 50%) 0 0/22px 22px;
  border:1.5px solid var(--line);border-radius:14px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;min-height:260px;padding:12px;
}
.canvas-wrap canvas{max-width:100%;height:auto;display:block}
canvas.crop-canvas{cursor:grab;touch-action:none;border-radius:10px}
canvas.crop-canvas:active{cursor:grabbing}
.slider-row{display:flex;align-items:center;gap:12px}
.slider-row input[type=range]{flex:1;accent-color:var(--green)}
.slider-row .sv{font-weight:700;min-width:56px;text-align:right;font-variant-numeric:tabular-nums}
.color-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.color-swatch{
  width:38px;height:38px;border-radius:10px;border:2px solid var(--line);cursor:pointer;padding:0;
}
.color-swatch.active{border-color:var(--green);box-shadow:0 0 0 3px rgba(11,122,75,.2)}
.preview-inline{display:flex;gap:16px;flex-wrap:wrap;align-items:flex-start}
.preview-inline .pv-\boxed{text-align:center}
.preview-inline .pv-box span{display:block;font-size:.84rem;color:var(--muted);margin-top:6px;font-weight:600}
.preview-inline img,.preview-inline canvas{border:1px solid var(--line);border-radius:10px;background:#fff}

/* ---------- Invoice preview ---------- */
.invoice-sheet{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:34px 38px;
  font-size:.97rem;line-height:1.7;box-shadow:var(--shadow);
}
.invoice-sheet .inv-head{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:2.5px solid var(--green);padding-bottom:16px;margin-bottom:18px}
.invoice-sheet .inv-title{font-size:1.7rem;font-weight:800;color:var(--green-dark);letter-spacing:.02em}
.invoice-sheet .inv-meta{text-align:right;font-size:.92rem;color:var(--muted)}
.invoice-sheet .inv-parties{display:flex;gap:28px;flex-wrap:wrap;margin-bottom:20px}
.invoice-sheet .inv-parties>div{flex:1;min-width:210px}
.invoice-sheet .inv-parties h4{font-size:.82rem;letter-spacing:.08em;color:var(--muted);text-transform:uppercase;margin-bottom:5px}
.invoice-sheet table{width:100%;border-collapse:collapse;margin:12px 0 18px}
.invoice-sheet table th{background:var(--green);color:#fff;padding:10px 12px;font-size:.88rem;text-align:left}
.invoice-sheet table th.num,.invoice-sheet table td.num{text-align:right}
.invoice-sheet table td{padding:10px 12px;border-bottom:1px solid #e8efea}
.invoice-sheet .inv-total{margin-left:auto;max-width:330px}
.invoice-sheet .inv-total .tl{display:flex;justify-content:space-between;padding:6px 2px;font-size:1rem}
.invoice-sheet .inv-total .tl.grand{
  border-top:2.5px solid var(--green);margin-top:8px;padding-top:12px;font-size:1.22rem;font-weight:800;color:var(--green-dark);
}
.invoice-sheet .inv-footer{margin-top:28px;padding-top:16px;border-top:1px dashed #c9d8cf;color:var(--muted);font-size:.88rem;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.inv-sign{margin-top:42px;display:flex;gap:40px;flex-wrap:wrap}
.inv-sign .sg{flex:1;min-width:180px}
.inv-sign .sg .line{border-top:1.5px solid #4b5c53;margin-top:42px;padding-top:6px;font-size:.88rem;font-weight:600}
.amount-words{background:#f7fbf9;border:1px solid var(--line);border-radius:10px;padding:10px 14px;font-size:.93rem;margin-bottom:16px}

@media print{
  body{background:#fff}
  .site-header,.site-footer,.page-head,.no-print,.tabs,.btn-row{display:none !important}
  .print-area{box-shadow:none;border:none;padding:0;margin:0}
  .invoice-sheet{border:none;box-shadow:none;padding:0}
  .panel{border:none;box-shadow:none;padding:0}
  @page{margin:14mm}
}

/* ---------- Footer ---------- */
.site-footer{background:#0d2a1d;color:#cfe3d8;padding:52px 0 28px;margin-top:64px}
.site-footer a{color:#9fe3c0}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:30px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:1.02rem;margin-bottom:13px;font-weight:700}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:8px;font-size:.95rem}
.site-footer .f-logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:#fff;margin-bottom:12px}
.site-footer p{font-size:.95rem;line-height:1.8;color:#a8c4b5}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.88rem;color:#8fb3a1;
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);
  background:#12241c;color:#fff;padding:12px 22px;border-radius:999px;font-weight:600;font-size:.95rem;
  opacity:0;pointer-events:none;transition:.28s;z-index:200;box-shadow:var(--shadow-lg);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- MISC ---------- */
.divider{height:1px;background:var(--line);margin:22px 0}
.pill{display:inline-flex;align-items:center;gap:6px;background:var(--green-soft);color:var(--green-dark);font-size:.84rem;font-weight:700;padding:5px 12px;border-radius:999px}
.mono{font-family:ui-monospace,'Cascadia Code',monospace;font-size:.92em}
.muted{color:var(--muted)}
.mt-0{margin-top:0}.mt-1{margin-top:10px}.mt-2{margin-top:18px}.mt-3{margin-top:26px}.mb-2{margin-bottom:18px}
.text-center{text-align:center}
.hide{display:none !important}

/* ---------- background polish: glass + texture + tilt ---------- */
.panel,.tool-card{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.tool-card{
  background:rgba(255,255,255,.82);
  transform-style:preserve-3d;
  will-change:transform;
}
.tool-card.tilting{transition:none}
.feature-strip{background:rgba(255,255,255,.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.page-head{position:relative;overflow:hidden;isolation:isolate}
.page-head::before{
  content:'';position:absolute;inset:-30px;pointer-events:none;z-index:0;
  background-image:radial-gradient(circle,rgba(255,255,255,.15) 1px,transparent 1.6px);
  background-size:30px 30px;opacity:.45;
  transform:translate(calc(var(--mx) * -12px),calc(var(--my) * -12px));
  transition:transform .35s ease-out;
}
.page-head::after{
  content:'';position:absolute;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(520px 300px at calc(20% + var(--mx) * 34%) calc(40% + var(--my) * 40%),rgba(255,255,255,.12),transparent 70%);
}
.page-head>.wrap{position:relative;z-index:1}
.site-footer{position:relative;overflow:hidden}
.site-footer::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle,rgba(255,255,255,.07) 1px,transparent 1.6px);
  background-size:28px 28px;
  transform:translate(calc(var(--mx) * 10px),calc(var(--my) * 10px));
  transition:transform .4s ease-out;
}
.site-footer>.wrap{position:relative;z-index:1}

@media print{#zt-bg{display:none !important}}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .hero::before,.hero::after,.page-head::before,.page-head::after,.site-footer::before,.hero-deco{transform:none !important}
}