:root{
  --bg:#ffffff;
  --bg-2:#f4f7fb;
  --card:#ffffff;
  --card-hi:#f0f6fc;
  --line:rgba(28,27,86,.10);
  --txt:#10112b;
  --muted:#5c6076;
  --sky:#29aae1;
  --sky-dk:#1f8fc2;
  --navy:#1c1b56;
  --glow:rgba(41,170,225,.30);
  --radius:18px;
  --max:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:'Sora',system-ui,sans-serif;line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
.mono{font-family:'Space Mono',monospace}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

.bg-fx{position:fixed;inset:0;z-index:-2;pointer-events:none;background:
  radial-gradient(700px 460px at 85% -8%,rgba(41,170,225,.12),transparent 60%),
  radial-gradient(700px 500px at -5% 12%,rgba(28,27,86,.07),transparent 60%),
  var(--bg);}
.grid-fx{position:fixed;inset:0;z-index:-1;opacity:.5;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 65%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 65%);}

header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(255,255,255,.78);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:1.4rem;letter-spacing:-.02em;color:#000}
.logo{gap:12px}.logo img.brand-img{height:42px;width:42px;object-fit:contain}.brand-tx{display:flex;flex-direction:column;line-height:1.05}.brand-name{font-weight:800;font-size:1.45rem;letter-spacing:.01em;color:var(--navy)}.brand-name b{color:var(--sky-dk);font-weight:800}.brand-slogan{font-family:'Space Mono',monospace;font-size:.5rem;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}footer .logo img.brand-img{height:38px;width:38px}footer .brand-name{font-size:1.3rem}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{color:var(--muted);font-size:.95rem;font-weight:600;transition:color .2s}
.nav-links a:hover{color:var(--navy)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:.95rem;padding:11px 22px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:.22s;white-space:nowrap}
.btn-ghost{border-color:var(--line);color:var(--navy);background:#fff}
.btn-ghost:hover{background:var(--card-hi);border-color:rgba(28,27,86,.22)}
.btn-primary{background:linear-gradient(135deg,var(--sky),var(--sky-dk));color:#fff;box-shadow:0 8px 26px var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 36px var(--glow)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(28,27,86,.3)}
.nav-cta{display:flex;gap:12px;align-items:center}
.menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--navy);width:42px;height:42px;font-size:1.2rem;cursor:pointer}

.hero{padding:90px 0 60px;position:relative}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:600;color:var(--sky-dk);background:rgba(41,170,225,.10);border:1px solid rgba(41,170,225,.28);padding:7px 14px;border-radius:100px;margin-bottom:26px}
.badge .pulse{width:8px;height:8px;border-radius:50%;background:var(--sky);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 var(--glow)}70%{box-shadow:0 0 0 10px transparent}100%{box-shadow:0 0 0 0 transparent}}
.hero h1{font-size:clamp(2.6rem,6vw,4.6rem);line-height:1.04;font-weight:800;letter-spacing:-.03em;max-width:15ch;color:var(--navy)}
.hero h1 .grad{background:linear-gradient(135deg,var(--sky),var(--sky-dk));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.slogan{font-family:'Space Mono',monospace;color:var(--sky-dk);font-size:1rem;letter-spacing:.04em;margin:18px 0 0}
.hero p.sub{color:var(--muted);font-size:1.12rem;max-width:56ch;margin:22px 0 34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:38px;margin-top:48px;flex-wrap:wrap}
.hero-stats .s b{font-size:1.8rem;font-weight:800;display:block;letter-spacing:-.02em;color:var(--navy)}
.hero-stats .s span{color:var(--muted);font-size:.88rem}

.cpm-card{margin-top:54px;background:linear-gradient(135deg,var(--navy),#2a2870);color:#fff;border-radius:var(--radius);padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;position:relative;overflow:hidden;box-shadow:0 20px 50px rgba(28,27,86,.25)}
.cpm-card::before{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;background:radial-gradient(circle,rgba(41,170,225,.5),transparent 70%);filter:blur(8px);pointer-events:none}
.cpm-label{color:rgba(255,255,255,.7);font-size:.85rem;letter-spacing:.08em;text-transform:uppercase}
.cpm-val{font-family:'Space Mono',monospace;font-size:2.6rem;font-weight:700;color:var(--sky);position:relative}
.cpm-live{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:#fff;font-weight:600;position:relative}

section{padding:70px 0}
.eyebrow{font-family:'Space Mono',monospace;color:var(--sky-dk);font-size:.85rem;letter-spacing:.1em;text-transform:uppercase}
.sec-title{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:800;letter-spacing:-.02em;margin:10px 0 14px;color:var(--navy)}
.sec-sub{color:var(--muted);max-width:62ch;margin-bottom:46px}
.center{text-align:center}.center .sec-sub{margin-inline:auto}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s;box-shadow:0 4px 20px rgba(28,27,86,.04)}
.card:hover{transform:translateY(-6px);border-color:rgba(41,170,225,.5);box-shadow:0 16px 40px rgba(41,170,225,.14)}
.card .ico{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;font-size:1.5rem;background:rgba(41,170,225,.12);border:1px solid rgba(41,170,225,.22);margin-bottom:20px}
.card h3{font-size:1.25rem;font-weight:700;margin-bottom:10px;color:var(--navy)}
.card p{color:var(--muted);font-size:.96rem}
.tag{display:inline-block;font-size:.72rem;font-family:'Space Mono',monospace;color:var(--sky-dk);border:1px solid rgba(41,170,225,.35);border-radius:6px;padding:3px 9px;margin-top:16px}

/* ===== interactive ad-format tabs ===== */
.fmt{background:var(--card);border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:0 10px 40px rgba(28,27,86,.06)}
.fmt-tabs{display:flex;gap:6px;padding:10px;background:var(--bg-2);border-bottom:1px solid var(--line);overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.fmt-tabs::-webkit-scrollbar{display:none}
.fmt-tab{flex:1;border:1px solid transparent;background:transparent;cursor:pointer;font-family:inherit;font-weight:700;font-size:.98rem;color:var(--muted);padding:14px 10px;border-radius:14px;transition:.2s;white-space:nowrap}
.fmt-tab:hover{color:var(--navy);background:rgba(41,170,225,.07)}
.fmt-tab.active{color:#fff;background:linear-gradient(135deg,var(--sky),var(--sky-dk));box-shadow:0 8px 22px var(--glow)}
.fmt-body{display:grid;grid-template-columns:1fr 1fr;gap:0}
.fmt-info{padding:44px}
.fmt-pane{display:none;animation:fadeUp .4s ease}
.fmt-pane.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.fmt-pane h3{font-size:1.5rem;font-weight:800;color:var(--navy);margin-bottom:12px}
.fmt-pane p{color:var(--muted);margin-bottom:18px}
.fmt-points{list-style:none;display:grid;gap:11px;margin-bottom:8px}
.fmt-points li{display:flex;gap:10px;align-items:flex-start;font-size:.96rem}
.fmt-points .chk{color:var(--sky);font-weight:700;flex-shrink:0}

/* preview side */
.fmt-preview{padding:44px;background:linear-gradient(160deg,var(--bg-2),#fff);display:flex;flex-direction:column;justify-content:center;border-left:1px solid var(--line)}
.mock{border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:0 14px 36px rgba(28,27,86,.14);background:#fff}
.mock-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:#eef2f8;border-bottom:1px solid var(--line)}
.dot{width:11px;height:11px;border-radius:50%;display:inline-block}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.mock-url{margin-left:10px;flex:1;background:#fff;border:1px solid var(--line);border-radius:7px;font-size:.74rem;color:var(--muted);padding:5px 12px;font-family:'Space Mono',monospace}
.mock-screen{position:relative;height:248px;padding:20px;overflow:hidden}
.sk{background:linear-gradient(90deg,#e9eef5,#dfe7f1,#e9eef5);background-size:200% 100%;border-radius:6px;margin-bottom:11px;animation:shimmer 2.2s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.sk-title{height:18px;width:62%}
.sk-line{height:11px;width:100%}
.sk-line.short{width:74%}
.sk-img{height:74px;width:100%;margin:6px 0 14px}
.sk.w{background:linear-gradient(90deg,rgba(255,255,255,.5),rgba(255,255,255,.25),rgba(255,255,255,.5));background-size:200% 100%}
.badge-ad{display:inline-block;background:var(--navy);color:#fff;font-size:.6rem;font-weight:700;font-family:'Space Mono',monospace;padding:2px 7px;border-radius:5px;letter-spacing:.05em;margin-bottom:8px}

/* mock format overlays — hidden by default, shown per active format */
.mp{position:absolute;inset:0;opacity:0;pointer-events:none;transition:.45s cubic-bezier(.2,.7,.2,1)}
.mock-screen[data-fmt="pop"] .mp-pop{opacity:1}
.mock-screen[data-fmt="link"] .mp-link{opacity:1}
.mock-screen[data-fmt="banner"] .mp-banner{opacity:1}

/* popunder window slides up from behind */
.mp-pop{display:flex;align-items:flex-end;justify-content:center;padding:0 16px 16px}
.mock-screen[data-fmt="pop"] .popwin{transform:translateY(0)}
.popwin{width:88%;background:#fff;border:1px solid var(--line);border-radius:10px 10px 0 0;box-shadow:0 -12px 30px rgba(28,27,86,.22);transform:translateY(40px);transition:.5s cubic-bezier(.2,.7,.2,1);overflow:hidden}
.popwin-bar{display:flex;gap:6px;padding:8px 10px;background:linear-gradient(135deg,var(--sky),var(--sky-dk))}
.popwin-bar .dot{width:8px;height:8px;background:rgba(255,255,255,.7)}
.popwin-body{padding:14px;background:linear-gradient(135deg,var(--navy),#2a2870)}

/* direct link pill */
.mp-link{display:flex;align-items:center;justify-content:center}
.linkpill{position:relative;background:linear-gradient(135deg,var(--sky),var(--sky-dk));color:#fff;font-weight:700;font-size:.92rem;padding:14px 22px;border-radius:12px;box-shadow:0 12px 30px var(--glow);font-family:'Space Mono',monospace}
.linkpill .cursor{position:absolute;right:-6px;bottom:-14px;font-size:1.2rem;animation:tap 1.4s infinite}
@keyframes tap{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}

/* banner slot */
.mp-banner{display:flex;align-items:center;justify-content:center}
.bannerbox{width:86%;height:64px;border:2px dashed var(--sky);border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:var(--sky-dk);font-weight:700;font-size:.86rem;background:rgba(41,170,225,.07)}
.mock-cap{margin-top:18px;color:var(--muted);font-size:.9rem;text-align:center;min-height:2.6em}

.duo{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:38px;box-shadow:0 4px 20px rgba(28,27,86,.04)}
.panel h3{font-size:1.5rem;font-weight:800;margin-bottom:6px;color:var(--navy)}
.panel .ptag{color:var(--sky-dk);font-family:'Space Mono',monospace;font-size:.85rem;margin-bottom:22px}
.panel ul{list-style:none;display:grid;gap:14px}
.panel li{display:flex;gap:12px;align-items:flex-start;font-size:.98rem}
.panel li .chk{color:var(--sky);font-weight:700;flex-shrink:0;margin-top:2px}
.panel .btn{margin-top:28px;width:100%}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 4px 20px rgba(28,27,86,.04)}
.step .n{font-family:'Space Mono',monospace;font-size:2.4rem;font-weight:700;color:rgba(41,170,225,.4);line-height:1}
.step h4{font-size:1.1rem;font-weight:700;margin:10px 0 6px;color:var(--navy)}
.step p{color:var(--muted);font-size:.92rem}

.pay-card{background:linear-gradient(135deg,var(--card-hi),#fff);border:1px solid var(--line);border-radius:24px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;box-shadow:0 10px 40px rgba(28,27,86,.06)}
.pay-meta .big{font-size:3rem;font-weight:800;letter-spacing:-.02em;color:var(--navy)}
.pay-meta .big span{color:var(--sky-dk)}
.pay-meta p{color:var(--muted);margin-top:8px}
.methods{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.method{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:flex;align-items:center;gap:12px;font-weight:600;color:var(--navy);transition:.2s}
.method:hover{border-color:rgba(41,170,225,.5);background:var(--card-hi)}
.method .m-ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(41,170,225,.14);font-size:1.1rem}

/* payment info cards */
.info-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:24px}
.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:0 4px 20px rgba(28,27,86,.04);transition:.25s}
.info-card:hover{transform:translateY(-6px);border-color:rgba(41,170,225,.5);box-shadow:0 16px 40px rgba(41,170,225,.14)}
.info-card .ic-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:1.4rem;background:rgba(41,170,225,.12);border:1px solid rgba(41,170,225,.22);margin-bottom:18px}
.info-card h3{font-size:1.2rem;font-weight:700;color:var(--navy);margin-bottom:10px}
.info-card p{color:var(--muted);font-size:.96rem}
.info-card b{color:var(--navy)}

/* sticky-header offset so menu links land below the bar */
section[id],#publishers,#advertisers{scroll-margin-top:96px}

.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat .f{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);box-shadow:0 4px 20px rgba(28,27,86,.04)}
.feat .f .fi{font-size:1.6rem;margin-bottom:12px}
.feat .f h4{font-size:1.05rem;margin-bottom:6px;color:var(--navy)}
.feat .f p{color:var(--muted);font-size:.9rem}

.about-card{background:linear-gradient(135deg,var(--navy),#2a2870);color:#fff;border-radius:24px;padding:56px;position:relative;overflow:hidden}
.about-card::before{content:"";position:absolute;right:-60px;bottom:-60px;width:300px;height:300px;background:radial-gradient(circle,rgba(41,170,225,.35),transparent 70%);filter:blur(10px);pointer-events:none}
.about-card .eyebrow{color:var(--sky);position:relative}
.about-card h2{font-size:clamp(1.9rem,4vw,2.6rem);font-weight:800;margin:10px 0 18px;position:relative}
.about-card p{color:rgba(255,255,255,.82);max-width:70ch;position:relative;margin-bottom:14px}

.cta-band{background:linear-gradient(135deg,rgba(41,170,225,.12),rgba(28,27,86,.08));border:1px solid rgba(41,170,225,.28);border-radius:26px;padding:60px;text-align:center}
.cta-band h2{font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-.02em;margin-bottom:14px;color:var(--navy)}
.cta-band p{color:var(--muted);max-width:50ch;margin:0 auto 30px}

.contact-card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:56px;text-align:center;box-shadow:0 10px 40px rgba(28,27,86,.06)}
.contact-card .tg-ico{width:72px;height:72px;border-radius:20px;display:grid;place-items:center;margin:0 auto 22px;background:rgba(41,170,225,.12);font-size:2rem}
.contact-card h3{font-size:1.6rem;font-weight:800;color:var(--navy);margin-bottom:10px}
.contact-card p{color:var(--muted);max-width:46ch;margin:0 auto 26px}

footer{border-top:1px solid var(--line);padding:56px 0 30px;margin-top:30px;background:var(--bg-2)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:40px}
.foot-grid h5{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:16px}
.foot-grid a{display:block;color:var(--muted);font-size:.94rem;margin-bottom:10px;transition:.2s}
.foot-grid a:hover{color:var(--sky-dk)}
.foot-about p{color:var(--muted);font-size:.94rem;max-width:34ch;margin-top:14px}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap;gap:14px}
.foot-bottom p{color:var(--muted);font-size:.88rem}
.socials{display:flex;gap:12px}
.socials a{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;transition:.2s;background:#fff;color:var(--navy)}
.socials a:hover{border-color:var(--sky);color:var(--sky-dk)}

.reveal{opacity:0;transform:translateY(28px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* prevent any horizontal overflow on every device */
html,body{max-width:100%;overflow-x:hidden}
img{max-width:100%;height:auto}
.cpm-card,.pay-card,.about-card,.contact-card,.cta-band,.panel,.card,.step{min-width:0}

/* large tablet / small laptop */
@media(max-width:1024px){
  .wrap{padding:0 22px}
  .hero-stats{gap:28px}
}

/* tablet — collapse nav to hamburger BEFORE it gets crowded */
@media(max-width:900px){
  .nav-links{display:none}
  .menu-btn{display:grid}
  nav .nav-links.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--line);padding:18px 22px;gap:6px;box-shadow:0 18px 40px rgba(28,27,86,.12)}
  nav .nav-links.open a{padding:12px 6px;border-radius:10px;font-size:1.02rem}
  nav .nav-links.open a:active{background:var(--card-hi)}
  .cards,.steps,.feat{grid-template-columns:repeat(2,1fr)}
  .info-row{grid-template-columns:1fr}
  .fmt-body{grid-template-columns:1fr}
  .fmt-preview{border-left:none;border-top:1px solid var(--line)}
  .duo,.pay-card{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  section{padding:56px 0}
}

/* phones */
@media(max-width:600px){
  .wrap{padding:0 18px}
  .nav-cta .btn-ghost{display:none}
  nav{height:66px}
  nav .nav-links.open{top:66px}
  .brand-slogan{display:none}
  .brand-name{font-size:1.25rem}
  .logo img.brand-img{height:36px;width:36px}

  .cards,.steps,.feat,.methods,.foot-grid{grid-template-columns:1fr}
  .fmt-tabs{padding:7px;gap:4px}
  .fmt-tab{font-size:.8rem;padding:11px 4px}
  .fmt-info,.fmt-preview{padding:26px 22px}
  .mock-screen{height:220px}
  .pay-card,.about-card,.contact-card{padding:30px 22px}
  .cta-band{padding:38px 22px}
  .panel{padding:28px 22px}
  section{padding:48px 0}

  .hero{padding:48px 0 36px}
  .hero h1{font-size:clamp(2.1rem,9vw,2.8rem);max-width:100%}
  .hero p.sub{font-size:1.02rem}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1 1 auto;text-align:center}
  .hero-stats{gap:0 26px;row-gap:20px}
  .hero-stats .s{flex:0 0 calc(50% - 13px)}
  .hero-stats .s b{font-size:1.55rem}

  .cpm-card{padding:24px 22px;flex-direction:column;align-items:flex-start;gap:10px}
  .cpm-val{font-size:2.2rem}

  .sec-title{font-size:clamp(1.6rem,7vw,2.2rem)}
  .pay-meta .big{font-size:2.3rem}
  .about-card h2,.cta-band h2{font-size:clamp(1.6rem,7vw,2.1rem)}

  .foot-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}

/* small phones */
@media(max-width:380px){
  .hero-stats .s{flex:0 0 100%}
  .brand-name{font-size:1.15rem}
  .btn{padding:11px 16px;font-size:.9rem}
  .fmt-tab{font-size:.74rem;padding:10px 3px}
}

/* tap targets & no tap-highlight flash on touch devices */
/* ===== touch interactions & press feedback ===== */
/* press-down effect on tap for all interactive elements */
.btn,.card,.info-card,.step,.method,.fmt-tab,.panel .btn,.socials a,.menu-btn,.linkpill{
  -webkit-tap-highlight-color:transparent;
  touch-action:manipulation;
  user-select:none;-webkit-user-select:none;
}
.btn:active{transform:scale(.96)!important;transition:transform .08s ease}
.fmt-tab:active{transform:scale(.95);transition:transform .08s ease}
.method:active,.socials a:active{transform:scale(.94);transition:transform .08s ease}
.card:active,.info-card:active,.step:active{transform:scale(.985);transition:transform .1s ease}
.menu-btn:active{transform:scale(.9);background:var(--card-hi)}
.nav-links a:active{color:var(--sky-dk)}
.logo:active{opacity:.7}

/* ripple highlight for buttons on touch */
.btn{position:relative;overflow:hidden}
.btn .ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,.45);transform:scale(0);animation:rippleFx .55s ease-out;pointer-events:none}
.btn-ghost .ripple,.btn-navy .ripple{background:rgba(41,170,225,.3)}
@keyframes rippleFx{to{transform:scale(2.6);opacity:0}}

/* touch devices: clearer active feedback + bigger tap targets */
@media(hover:none){
  a,.btn,.method,.menu-btn,.fmt-tab{-webkit-tap-highlight-color:transparent}
  .btn{min-height:48px}
  .fmt-tab{min-height:46px}
  .method{min-height:54px}
  .nav-links a{padding:14px 6px}
  .info-card:active,.card:active{border-color:rgba(41,170,225,.55);box-shadow:0 8px 24px rgba(41,170,225,.16)}
  .socials a{min-width:46px;min-height:46px}
  /* swipe hint for format tabs on mobile */
  .fmt-tabs{scroll-snap-type:x proximity}
  .fmt-tab{scroll-snap-align:center}
}
/* respect reduced-motion preference */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.05ms!important}
  .sk{animation:none}
}