/* SparkPay site — shared styles (Aperture identity) */
:root{
  --bg:#0A1230; --bg2:#0E1638;
  --surface:rgba(255,255,255,.04); --surface-solid:#16203F;
  --border:rgba(255,255,255,.09); --border-strong:rgba(255,255,255,.17);
  --text:#EAF0FB; --muted:#9DB0D0; --faint:#697B9E;
  --accent:#1E93F9; --accent-gold:#35C3FB; --accent-coral:#0967F9;
  --grad:linear-gradient(120deg,#0967F9 0%,#1399FA 52%,#1CCAFB 100%);
  --silver:linear-gradient(140deg,#EEF2FF,#AEBEDF);
  --maxw:1120px;
  --sora:"Sora",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --figtree:"Figtree",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:"Space Mono",ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--text);
  font-family:var(--figtree); font-size:17px; line-height:1.6;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.mono{font-family:var(--mono)}

/* background field */
.bg-field{position:fixed;inset:0;z-index:-1;background:var(--bg);overflow:hidden}
.bg-field::before{
  content:"";position:absolute;top:-18%;left:50%;transform:translateX(-50%);
  width:120vw;max-width:1400px;height:820px;
  background:radial-gradient(ellipse at center,rgba(14,134,247,.20) 0%,rgba(14,134,247,.10) 34%,transparent 62%);
  filter:blur(20px);pointer-events:none;
}
.bg-field::after{
  content:"";position:absolute;inset:0;opacity:.6;
  background:
    radial-gradient(1px 1px at 20% 30%,rgba(255,255,255,.35),transparent),
    radial-gradient(1px 1px at 70% 20%,rgba(255,255,255,.25),transparent),
    radial-gradient(1px 1px at 85% 60%,rgba(255,255,255,.20),transparent),
    radial-gradient(1px 1px at 40% 75%,rgba(255,255,255,.22),transparent),
    radial-gradient(1px 1px at 60% 45%,rgba(255,255,255,.18),transparent);
}

/* nav */
header.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(10,18,48,.72);backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--sora);font-weight:800;font-size:20px;letter-spacing:.2px;flex:none}
.brand .mark{width:30px;height:30px;flex:none}
.brand .wm,.ft-brand .ft-mark .wm{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--muted);font-weight:500;font-size:15px;transition:color .18s}
.nav-links a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--figtree);font-weight:600;font-size:15px;padding:11px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:transform .16s ease,box-shadow .2s ease,background .2s ease;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 26px rgba(14,134,247,.32)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 34px rgba(14,134,247,.42)}
.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--border-strong)}
.btn-ghost:hover{border-color:var(--accent);color:#fff}
.nav .btn{padding:9px 20px}

/* language switcher */
.lang{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:7px;background:var(--surface);border:1px solid var(--border-strong);color:var(--text);font-family:var(--figtree);font-weight:600;font-size:14px;padding:8px 13px;border-radius:999px;cursor:pointer;transition:border-color .2s}
.lang-btn:hover{border-color:var(--accent)}
.lang-btn svg{width:15px;height:15px;color:var(--muted)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);background:var(--surface-solid);border:1px solid var(--border-strong);border-radius:14px;padding:6px;min-width:170px;box-shadow:0 18px 46px rgba(0,0,0,.5);display:none;z-index:60}
.lang-menu.open{display:block}
.lang-menu button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:10px;background:none;border:none;color:var(--text);font-family:var(--figtree);font-size:14.5px;padding:9px 12px;border-radius:9px;cursor:pointer;text-align:left}
.lang-menu button:hover{background:rgba(255,255,255,.06)}
.lang-menu button[aria-selected="true"]{color:var(--accent-gold)}
.lang-menu button .tick{opacity:0;color:var(--accent);font-family:var(--mono)}
.lang-menu button[aria-selected="true"] .tick{opacity:1}

/* generic section */
main{position:relative}
section{padding:96px 0}
.sec-head{text-align:center;max-width:660px;margin:0 auto 56px}
.sec-tag{font-family:var(--mono);font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.sec-head h2{font-family:var(--sora);font-weight:700;font-size:clamp(30px,4.4vw,44px);letter-spacing:-.7px;margin:0 0 16px;line-height:1.14;text-wrap:balance}
.sec-head p{color:var(--muted);font-size:18px;margin:0}

/* hero */
.hero{padding:92px 0 68px;text-align:center;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent-gold);border:1px solid var(--border-strong);border-radius:999px;padding:7px 15px;margin-bottom:30px;background:var(--surface)}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--grad)}
.hero h1{font-family:var(--sora);font-weight:800;letter-spacing:-1.2px;line-height:1.05;font-size:clamp(42px,7vw,80px);margin:0 auto 22px;max-width:15ch;text-wrap:balance}
.hero p.lead{font-size:clamp(17px,2.3vw,21px);color:var(--muted);max-width:58ch;margin:0 auto 40px;line-height:1.55}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-lg{padding:15px 30px;font-size:16.5px}
.hero-note{margin-top:20px;color:var(--faint);font-size:13.5px;font-family:var(--mono)}
.hero-mark{width:132px;height:132px;margin:0 auto 40px;filter:drop-shadow(0 12px 46px rgba(14,134,247,.45))}
@keyframes flame-breathe{0%,100%{opacity:.94;transform:translateY(0) scale(1)}50%{opacity:1;transform:translateY(-2px) scale(1.035)}}
.hero-mark svg{transform-origin:50% 62%;animation:flame-breathe 3.8s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.hero-mark svg{animation:none}}

/* trust strip */
.trust{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:rgba(255,255,255,.015)}
.trust-inner{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 40px;padding:26px 24px}
.trust-item{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14.5px;font-weight:500}
.trust-item svg{width:18px;height:18px;flex:none;color:var(--accent)}

/* feature grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:30px 28px;transition:transform .2s ease,border-color .2s ease,background .2s ease}
.card:hover{transform:translateY(-3px);border-color:var(--border-strong);background:rgba(255,255,255,.05)}
.card .icon{width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(140,216,255,.16),rgba(14,134,247,.14));border:1px solid var(--border-strong);margin-bottom:20px}
.card .icon svg{width:24px;height:24px;color:var(--accent-gold)}
.card h3{font-family:var(--sora);font-weight:600;font-size:20px;margin:0 0 10px;letter-spacing:-.2px}
.card p{color:var(--muted);font-size:15.5px;margin:0;line-height:1.6}

/* security split */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split h2{font-family:var(--sora);font-weight:700;font-size:clamp(28px,4vw,40px);letter-spacing:-.6px;margin:0 0 20px;line-height:1.15}
.feat-list{list-style:none;padding:0;margin:26px 0 0}
.feat-list li{display:flex;gap:14px;padding:15px 0;border-top:1px solid var(--border)}
.feat-list li:first-child{border-top:none;padding-top:0}
.feat-list .fi{width:26px;height:26px;flex:none;border-radius:8px;background:var(--surface);border:1px solid var(--border-strong);display:flex;align-items:center;justify-content:center;margin-top:2px}
.feat-list .fi svg{width:15px;height:15px;color:var(--accent)}
.feat-list b{font-family:var(--sora);font-weight:600;font-size:16.5px;display:block;margin-bottom:3px}
.feat-list span{color:var(--muted);font-size:15px}
.shard-viz{background:linear-gradient(160deg,var(--surface-solid),rgba(28,20,38,.4));border:1px solid var(--border);border-radius:24px;padding:40px 34px;position:relative;overflow:hidden}
.shard-viz::before{content:"";position:absolute;top:-40%;right:-20%;width:360px;height:360px;background:radial-gradient(circle,rgba(14,134,247,.16),transparent 66%);filter:blur(10px)}
.shard-title{font-family:var(--mono);font-size:12px;letter-spacing:1.4px;text-transform:uppercase;color:var(--faint);margin-bottom:24px;position:relative}
.shard{display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.03);border:1px solid var(--border);margin-bottom:12px;position:relative}
.shard .num{font-family:var(--mono);font-weight:700;font-size:14px;width:34px;height:34px;border-radius:9px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;flex:none}
.shard .lbl b{font-family:var(--sora);font-weight:600;font-size:15px;display:block}
.shard .lbl span{color:var(--muted);font-size:13.5px}
.shard-eq{text-align:center;font-family:var(--mono);color:var(--accent-gold);font-size:14px;margin-top:20px;letter-spacing:.5px;position:relative}

/* chains grid */
.chains-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;max-width:1000px;margin:0 auto}
.chain-cell{display:flex;align-items:center;gap:11px;padding:12px 14px;border-radius:14px;background:var(--surface);border:1px solid var(--border);transition:border-color .2s,transform .2s,background .2s}
.chain-cell:hover{border-color:var(--border-strong);transform:translateY(-2px);background:rgba(255,255,255,.05)}
.chain-cell img{width:30px;height:30px;border-radius:50%;flex:none;background:#081024}
.chain-cell .cn{font-weight:600;font-size:14.5px;line-height:1.2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chains-note{text-align:center;color:var(--faint);font-family:var(--mono);font-size:13px;margin-top:26px}

/* ecosystem grid */
.eco-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(178px,1fr));gap:16px;max-width:1000px;margin:0 auto}
.dapp{display:flex;align-items:center;gap:14px;padding:18px;border-radius:18px;background:var(--surface);border:1px solid var(--border);transition:border-color .2s,transform .2s,background .2s}
.dapp:hover{border-color:var(--border-strong);transform:translateY(-3px);background:rgba(255,255,255,.05)}
.dapp .dicon{width:44px;height:44px;border-radius:12px;flex:none;background:#081024;border:1px solid var(--border);object-fit:cover}
.dapp .dmeta b{font-family:var(--sora);font-weight:600;font-size:16px;display:block;line-height:1.2}
.dapp .dmeta .cat{font-family:var(--mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--accent);margin-top:4px}
.eco-note{text-align:center;color:var(--muted);font-size:15.5px;margin-top:30px;max-width:52ch;margin-left:auto;margin-right:auto}

/* final CTA */
.cta-panel{text-align:center;border-radius:28px;padding:72px 32px;position:relative;overflow:hidden;background:linear-gradient(150deg,rgba(140,216,255,.10),rgba(14,134,247,.08));border:1px solid var(--border-strong)}
.cta-panel::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0%,rgba(14,134,247,.22),transparent 60%);pointer-events:none}
.cta-panel h2{font-family:var(--sora);font-weight:800;font-size:clamp(30px,5vw,50px);letter-spacing:-.8px;margin:0 0 16px;position:relative;text-wrap:balance}
.cta-panel p{color:var(--muted);font-size:18px;margin:0 auto 34px;max-width:48ch;position:relative}
.cta-panel .cta-row{position:relative}
.store-note{margin-top:18px;font-family:var(--mono);font-size:12.5px;color:var(--faint);position:relative}

/* footer */
footer.ft{border-top:1px solid var(--border);padding:56px 0 calc(40px + env(safe-area-inset-bottom,0px));margin-top:20px}
.ft-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:40px}
.ft-brand .ft-mark{display:flex;align-items:center;gap:10px;font-family:var(--sora);font-weight:700;font-size:18px;margin-bottom:14px}
.ft-brand .ft-mark .mark{width:26px;height:26px}
.ft-brand p{color:var(--muted);font-size:14.5px;max-width:34ch;margin:0}
.ft-col h4{font-family:var(--mono);font-size:12px;letter-spacing:1.4px;text-transform:uppercase;color:var(--faint);margin:0 0 16px}
.ft-col a{display:block;color:var(--muted);font-size:14.5px;margin-bottom:11px;transition:color .18s}
.ft-col a:hover{color:var(--text)}
.ft-copy{border-top:1px solid var(--border);padding-top:22px;color:var(--faint);font-size:13px;font-family:var(--mono)}

/* download page */
.dl-hero{padding:84px 0 30px;text-align:center}
.dl-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:820px;margin:40px auto 0}
.dl-card{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:34px 30px;text-align:left;position:relative;overflow:hidden}
.dl-card .plat{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.dl-card .plat .pl-ic{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--surface-solid);border:1px solid var(--border-strong)}
.dl-card .plat .pl-ic svg{width:26px;height:26px;color:var(--text)}
.dl-card .plat b{font-family:var(--sora);font-weight:700;font-size:22px}
.badge-soon{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--accent-gold);border:1px solid var(--border-strong);border-radius:999px;padding:4px 11px;margin-bottom:16px;background:var(--surface)}
.badge-live{display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:#fff;border:1px solid transparent;border-radius:999px;padding:4px 11px;margin-bottom:16px;background:var(--grad);box-shadow:0 6px 18px rgba(14,134,247,.28)}
.dl-card p{color:var(--muted);font-size:15px;margin:0 0 22px}
.dl-card .btn{width:100%}
.dl-extra{max-width:820px;margin:34px auto 0;text-align:center;color:var(--muted);font-size:15px}
.dl-extra a{color:var(--accent-gold);font-weight:600}
.dl-why{max-width:820px;margin:64px auto 0}
.dl-why-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;margin-top:24px}
.dl-why-list .wi{display:flex;gap:12px;align-items:flex-start}
.dl-why-list .wi svg{width:18px;height:18px;color:var(--accent);flex:none;margin-top:3px}
.dl-why-list .wi span{color:var(--muted);font-size:15px}
.dl-why-list .wi b{color:var(--text)}

/* brand page */
.br-hero{padding:84px 0 20px;text-align:center}
.br-block{margin-top:64px}
.br-block h2{font-family:var(--sora);font-weight:700;font-size:clamp(24px,3.4vw,32px);letter-spacing:-.5px;margin:0 0 8px}
.br-block>.wrap>p.sub,.br-sub{color:var(--muted);font-size:16px;margin:0 0 26px;max-width:60ch}
.mark-stage{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.mark-tile{border-radius:20px;border:1px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:44px 20px;min-height:220px}
.mark-tile.dark{background:#0A1230}
.mark-tile.light{background:#FBF7F1}
.mark-tile .cap{font-family:var(--mono);font-size:11px;letter-spacing:1.2px;text-transform:uppercase}
.mark-tile.dark .cap{color:var(--muted)}
.mark-tile.light .cap{color:#6E6272}
.mark-tile svg,.mark-tile img:not(.logo-lockup){width:96px;height:96px}
.mark-tile .logo-lockup{width:min(340px,88%);height:auto}
.pay-grad{background:linear-gradient(90deg,#8CD8FF 0%,#3B82F6 55%,#1B3FE0 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.mark-tile .dl-row{display:flex;gap:8px;margin-top:2px}
.mark-tile .dl-row a{font-family:var(--mono);font-size:11px;letter-spacing:.6px;text-decoration:none;padding:5px 12px;border-radius:999px;border:1px solid var(--border);transition:border-color .15s,color .15s}
.mark-tile.dark .dl-row a{color:#C2C7DB;border-color:rgba(255,255,255,.16)}
.mark-tile.dark .dl-row a:hover{color:#fff;border-color:rgba(255,255,255,.4)}
.mark-tile.light .dl-row a{color:#6E6272;border-color:#E4DACF}
.mark-tile.light .dl-row a:hover{color:#16101E;border-color:#16101E}
.swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.sw{border-radius:16px;border:1px solid var(--border);overflow:hidden;cursor:pointer;background:var(--surface)}
.sw .chip{height:92px}
.sw .meta{padding:12px 14px}
.sw .meta b{display:block;font-size:14px;font-weight:600}
.sw .meta code{font-family:var(--mono);font-size:12px;color:var(--muted)}
.type-specimen{display:flex;flex-direction:column;gap:24px}
.type-row{border:1px solid var(--border);border-radius:18px;padding:26px 28px;background:var(--surface)}
.type-row .tlabel{font-family:var(--mono);font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:var(--faint);margin-bottom:12px}
.type-row .tsora{font-family:var(--sora);font-weight:800;font-size:34px;letter-spacing:-.6px}
.type-row .tfig{font-family:var(--figtree);font-size:19px}
.type-row .tmono{font-family:var(--mono);font-size:19px}
.usage-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.usage-col{border-radius:18px;border:1px solid var(--border);padding:24px 26px;background:var(--surface)}
.usage-col h4{font-family:var(--sora);font-weight:600;font-size:16px;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.usage-col.do h4{color:#22C48A}.usage-col.dont h4{color:#FF6B78}
.usage-col ul{margin:0;padding-left:18px;color:var(--muted);font-size:14.5px}
.usage-col li{margin-bottom:9px}

.page-badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12.5px;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent-gold);border:1px solid var(--border-strong);border-radius:999px;padding:7px 15px;margin-bottom:26px;background:var(--surface)}
.page-title{font-family:var(--sora);font-weight:800;letter-spacing:-.8px;font-size:clamp(38px,6vw,60px);margin:0 auto 20px;max-width:16ch;text-wrap:balance}
.page-lead{font-size:clamp(16px,2.2vw,20px);color:var(--muted);max-width:56ch;margin:0 auto}
.back-link{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:14.5px;font-weight:500;margin-top:40px}
.back-link:hover{color:var(--text)}

@media (max-width:860px){
  .nav-links{display:none}
  .grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:40px}
  .ft-top{grid-template-columns:1fr 1fr;gap:26px}
  .dl-cards,.mark-stage,.usage-grid,.dl-why-list{grid-template-columns:1fr}
  section{padding:72px 0}
  .hero{padding:60px 0 44px}
}
@media (max-width:560px){
  .grid,.eco-grid{grid-template-columns:1fr}
  .cta-row{flex-direction:column}
  .cta-row .btn{width:100%}
  .ft-top{grid-template-columns:1fr}
  .chains-grid{grid-template-columns:1fr 1fr}
}
@media (prefers-reduced-motion:reduce){
  .hero-mark .rings,.hero-mark .core{animation:none}
  html{scroll-behavior:auto}
}