:root{
  color-scheme: dark;
  --bg:#07090c; --panel:#10151b; --panel2:#141b23; --line:#1c242e;
  --ink:#eef3f8; --dim:#93a4b7; --accent:#3b9dff; --good:#39d98a; --warn:#ffb84d; --bad:#ff6b6b;
}
*{box-sizing:border-box}
body{margin:0; font:16px/1.65 -apple-system,system-ui,"Segoe UI",sans-serif; background:var(--bg); color:var(--ink);
     -webkit-font-smoothing:antialiased}
.wrap{max-width:70rem; margin:0 auto; padding:0 1rem}
.wrap.narrow{max-width:46rem}
.center{text-align:center}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* nav */
nav.top{position:sticky; top:0; z-index:9; background:rgba(7,9,12,.88); backdrop-filter:blur(10px);
        border-bottom:1px solid var(--line)}
nav.top .wrap{display:flex; align-items:center; gap:1rem; height:60px}
nav.top img{height:34px; width:auto}
nav.top .sp{flex:1}
nav.top a{color:var(--dim); font-size:.93rem; margin-left:1.4rem}
nav.top a:hover{color:var(--ink); text-decoration:none}

/* headings */
h1{font-size:clamp(1.9rem,5vw,2.8rem); line-height:1.15; margin:.6rem 0 .8rem; letter-spacing:-.02em}
h2{font-size:clamp(1.35rem,3.2vw,1.8rem); margin:2.6rem 0 .6rem; letter-spacing:-.01em}
h2:first-child{margin-top:0}
h3{font-size:1.05rem; margin:0 0 .35rem}
.sub{color:var(--dim); font-size:clamp(1rem,2.4vw,1.2rem); max-width:36rem; margin:0 auto 1.6rem}
.sub.left{margin-left:0; max-width:40rem}
.lede{color:var(--dim); max-width:40rem; margin:0 0 2rem}
.tag{display:inline-block; font-size:.74rem; letter-spacing:.09em; text-transform:uppercase; color:var(--accent);
     font-weight:700; margin-bottom:.5rem}
.page-head{padding:3rem 0 1rem}

/* hero */
header.hero{text-align:center; padding:3.5rem 0 2.5rem}
header.hero img.logo{width:100%; max-width:22rem; height:auto; margin-bottom:.5rem}
.cta{display:inline-block; background:var(--accent); color:#04121f; font-weight:700; padding:.8rem 1.6rem;
     border-radius:10px; font-size:1rem}
.cta:hover{text-decoration:none; filter:brightness(1.08)}
.cta.soon{background:var(--panel); color:var(--dim); border:1px solid var(--line); font-weight:600; cursor:default}
.cta.soon:hover{filter:none}
.verdicts{display:flex; gap:.6rem; justify-content:center; flex-wrap:wrap; margin-top:1.6rem}
.v{border:1px solid var(--line); border-radius:999px; padding:.35rem .9rem; font-size:.85rem; color:var(--dim);
   background:var(--panel)}
.v b{font-weight:700}
.v.g b{color:var(--good)} .v.y b{color:var(--warn)} .v.r b{color:var(--bad)}

/* sections */
section{padding:3.5rem 0; border-top:1px solid var(--line)}
section.cta-band{background:linear-gradient(180deg,#0a0f15,#07090c)}

/* grids */
.steps,.cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(15rem,1fr)); gap:1rem}
.step,.card{background:var(--panel); border:1px solid var(--line); border-radius:12px; padding:1.2rem}
.cards{margin:1.4rem 0}
.step .n{width:26px; height:26px; border-radius:50%; background:var(--accent); color:#04121f; font-weight:800;
         display:grid; place-items:center; font-size:.85rem; margin-bottom:.6rem}
.step p,.card p{margin:0; color:var(--dim); font-size:.94rem}
.card p + p{margin-top:.6rem}

/* feature rows */
.feature{display:grid; grid-template-columns:1fr 1fr; gap:2.5rem; align-items:center; margin-bottom:3.5rem}
.feature:last-child{margin-bottom:0}
.feature.flip .txt{order:2}
.feature img{width:100%; max-width:19rem; height:auto; border-radius:20px; border:1px solid var(--line);
             display:block; margin:0 auto}
.feature h3{font-size:1.25rem; margin:0 0 .5rem}
.feature p{color:var(--dim); margin:0 0 .6rem}

/* callout + math */
.callout{background:var(--panel2); border:1px solid var(--line); border-left:3px solid var(--accent);
         border-radius:10px; padding:1.2rem 1.4rem; margin:1.6rem 0}
.callout h3{color:var(--ink)}
.callout p{color:var(--dim); margin:.5rem 0 0}
.math{background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:1.1rem 1.3rem; margin:1.2rem 0}
.math p{margin:0; color:var(--dim); line-height:2}
.math strong{color:var(--ink)}
ul.ticks{list-style:none; padding:0; margin:1rem 0}
ul.ticks li{padding-left:1.5rem; position:relative; margin-bottom:.6rem; color:var(--dim)}
ul.ticks li::before{content:""; position:absolute; left:0; top:.62em; width:7px; height:7px; border-radius:50%;
                    background:var(--accent)}
ul.ticks strong{color:var(--ink)}

/* pricing */
.plans{display:grid; grid-template-columns:repeat(auto-fit,minmax(15rem,1fr)); gap:1rem; max-width:44rem}
.plan{background:var(--panel); border:1px solid var(--line); border-radius:14px; padding:1.4rem}
.plan.best{border-color:var(--accent)}
.plan .price{font-size:2rem; font-weight:800; letter-spacing:-.02em}
.plan .price span{font-size:.95rem; font-weight:500; color:var(--dim)}
.plan .save{display:inline-block; background:rgba(57,217,138,.14); color:var(--good); font-size:.78rem;
            font-weight:700; padding:.15rem .5rem; border-radius:6px; margin-left:.4rem}
.plan p{color:var(--dim); font-size:.93rem; margin:.5rem 0 0}
.free{margin-top:1.2rem; color:var(--dim); font-size:.94rem; max-width:40rem}

/* faq */
details{border-bottom:1px solid var(--line); padding:.9rem 0}
details summary{cursor:pointer; font-weight:600; list-style:none}
details summary::-webkit-details-marker{display:none}
details summary::before{content:"+"; color:var(--accent); font-weight:800; margin-right:.6rem}
details[open] summary::before{content:"–"}
details p{color:var(--dim); margin:.6rem 0 0}
details p + p{margin-top:.5rem}

/* support page bits */
.box{background:var(--panel); border:1px solid var(--line); border-radius:10px; padding:1rem 1.25rem; margin:1.5rem 0}

footer{border-top:1px solid var(--line); padding:2.5rem 0 3.5rem; color:#7d8b9a; font-size:.9rem}
footer a{color:#9fb1c4}
footer .links{margin-bottom:1rem}
footer .links a{margin-right:1.3rem}

@media (max-width:720px){
  .feature{grid-template-columns:1fr; gap:1.2rem}
  .feature.flip .txt{order:0}
  nav.top a{margin-left:1rem; font-size:.88rem}
  nav.top a.hide-sm{display:none}
  .br-lg{display:none}
}