:root{
  --bg:#0d1b22;--surface:#ffffff;--paper:#f3f6f5;--ink:#15282f;--line:#dde6e5;
  --teal:#0b8f86;--teal-d:#08665f;--teal-l:#15b3a7;--deep:#0d2a31;
  --coral:#f06a4a;--coral-d:#d24e30;--amber:#f3b13c;
  --mut:#5b6f73;--good:#0b8f86;--warn:#c2542f;
  --shadow:0 12px 34px rgba(13,27,34,.12);--card-r:16px;
}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden;margin:0;padding:0}
body{background:var(--paper);color:var(--ink);
  font-family:'Sora','Segoe UI',system-ui,Roboto,Arial,sans-serif;
  line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased}
.shell{max-width:1080px;margin:0 auto;padding:0 22px}
img{max-width:100%;height:auto}
a{color:var(--teal-d);text-decoration:none}
a:hover{text-decoration:underline}

/* masthead */
.masthead{position:sticky;top:0;z-index:60;background:var(--deep);
  border-bottom:3px solid var(--teal)}
.masthead-in{display:flex;align-items:center;gap:18px;padding:13px 0}
.logo{display:inline-flex;align-items:center;gap:9px;font-weight:800;
  font-size:1.3rem;letter-spacing:-.02em;color:#eafdfb;white-space:nowrap}
.logo .mk{width:30px;height:30px;border-radius:9px;display:inline-grid;place-items:center;
  background:linear-gradient(135deg,var(--teal-l),var(--teal-d));color:#fff;font-weight:900;
  font-size:.95rem}
.site-nav{margin-left:auto;display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.site-nav a{color:#bcd8d4;font-size:.92rem;padding:9px 11px;border-radius:9px;
  white-space:nowrap;font-weight:600}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
.site-nav a.here{color:#fff;background:var(--teal)}
.act{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,var(--coral),var(--coral-d));color:#fff!important;
  font-weight:800;padding:12px 21px;border-radius:11px;white-space:nowrap;
  min-height:46px;border:none;cursor:pointer;box-shadow:0 7px 18px rgba(240,106,74,.32)}
.act:hover{filter:brightness(1.06);text-decoration:none}
.act.teal{background:linear-gradient(135deg,var(--teal-l),var(--teal-d));
  box-shadow:0 7px 18px rgba(11,143,134,.32)}
.act.ghost{background:#e7f1ef;color:var(--teal-d)!important;box-shadow:none}
.menu-btn{display:none;margin-left:auto;width:48px;height:46px;border-radius:11px;
  border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-btn span{width:22px;height:2px;background:#eafdfb;border-radius:2px}

main{padding:6px 0 18px}
h1{font-size:2.1rem;line-height:1.16;margin:.3em 0 .45em;letter-spacing:-.02em}
h2{font-size:1.52rem;margin:1.7em 0 .5em;letter-spacing:-.01em;color:var(--deep)}
h3{font-size:1.18rem;margin:1.3em 0 .4em;color:var(--deep)}
p{margin:0 0 1.05em}
.path{font-size:.83rem;color:var(--mut);padding:17px 0 2px}
.path a{color:var(--mut)}
.path b{color:var(--ink);font-weight:600}

.lede{font-size:1.08rem;line-height:1.6;
  background:#e9f6f4;border:1px solid var(--line);border-left:5px solid var(--teal);
  padding:18px 22px;border-radius:14px;margin:0 0 1.6em}

.cover{display:grid;grid-template-columns:1.12fr .88fr;gap:30px;align-items:center;
  background:radial-gradient(120% 140% at 0% 0%,#103a40,#0d2a31 55%,#0b3a36);
  color:#e9fbf8;border-radius:22px;padding:34px;margin:8px 0 10px;box-shadow:var(--shadow)}
.cover h1{color:#fff;margin-top:0}
.cover p{color:#c4e7e1}
.cover .shot img{border-radius:15px;box-shadow:0 16px 38px rgba(0,0,0,.34);width:100%}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin:16px 0 8px}
.chip{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#e9fbf8;font-size:.82rem;font-weight:700;padding:6px 13px;border-radius:999px}

figure{margin:1.7em 0;text-align:center}
figure img{width:100%;border-radius:15px;box-shadow:var(--shadow);cursor:zoom-in}
figcaption{font-size:.84rem;color:var(--mut);margin-top:9px}

.fact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--card-r);
  padding:24px;margin:1.6em 0;box-shadow:var(--shadow)}
.fact .lbl{font-size:.73rem;text-transform:uppercase;letter-spacing:.06em;
  color:var(--mut);font-weight:800}
.fact .val{font-weight:700;margin-top:4px;color:var(--deep)}

.verdict{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center;
  background:linear-gradient(135deg,#0d2a31,#0b665f);color:#e9fbf8;border-radius:18px;
  padding:24px 28px;margin:1.7em 0;box-shadow:var(--shadow)}
.verdict .ring{width:96px;height:96px;border-radius:50%;display:grid;place-items:center;
  background:conic-gradient(var(--amber) calc(var(--v)*1%),rgba(255,255,255,.16) 0);
  font-weight:900}
.verdict .ring i{width:74px;height:74px;border-radius:50%;background:#0d2a31;display:grid;
  place-items:center;font-style:normal;font-size:1.5rem;color:#fff}
.verdict h3{color:#fff;margin:0 0 .25em}
.verdict p{color:#c4e7e1;margin:0}

.box{background:var(--surface);border:1px solid var(--line);border-radius:var(--card-r);
  padding:20px 22px;margin:1.5em 0;box-shadow:var(--shadow)}
.flag{background:#fff6ea;border:1px solid #f0ddb8;border-radius:13px;
  padding:14px 18px;margin:1.4em 0;font-size:.95rem;color:#6a4f1f}

.cols2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:1.6em 0}
.cols2 .pane{background:var(--surface);border:1px solid var(--line);border-radius:var(--card-r);
  padding:20px 22px;box-shadow:var(--shadow)}
.cols2 h3{margin-top:0}
.yes li,.nope li{list-style:none;position:relative;padding-left:1.8em;margin:.45em 0}
.yes li:before{content:"+";position:absolute;left:.1em;color:var(--good);font-weight:900}
.nope li:before{content:"–";position:absolute;left:.2em;color:var(--warn);font-weight:900}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.4em 0;
  border-radius:14px;border:1px solid var(--line)}
table{border-collapse:collapse;width:100%;min-width:480px;background:var(--surface)}
th,td{padding:12px 15px;text-align:left;font-size:.95rem;border-bottom:1px solid var(--line)}
th{background:#e7f1ef;color:var(--teal-d);font-weight:800}
tr:last-child td{border-bottom:none}

.flow{counter-reset:s;list-style:none;padding:0;margin:1.4em 0}
.flow li{counter-increment:s;position:relative;padding:15px 18px 15px 62px;
  background:var(--surface);border:1px solid var(--line);border-radius:13px;margin:.6em 0;
  box-shadow:var(--shadow)}
.flow li:before{content:counter(s);position:absolute;left:17px;top:14px;width:30px;height:30px;
  border-radius:9px;background:linear-gradient(135deg,var(--coral),var(--coral-d));color:#fff;
  display:grid;place-items:center;font-weight:900}

.promo{background:linear-gradient(135deg,#0d2a31,#0b8f86);border-radius:20px;
  padding:30px;text-align:center;color:#e9fbf8;margin:1.9em 0;box-shadow:var(--shadow)}
.promo h3{color:#fff;margin-top:0}
.promo p{color:#c4e7e1}

.switch{margin:1.5em 0}
.switch .bar{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:13px}
.switch .bar button{background:#e7f1ef;border:1px solid var(--line);color:var(--teal-d);
  font-weight:800;padding:10px 16px;border-radius:11px;cursor:pointer;min-height:44px}
.switch .bar button[aria-selected="true"]{background:var(--teal-d);color:#fff;border-color:var(--teal-d)}
.switch .leaf{background:var(--surface);border:1px solid var(--line);border-radius:var(--card-r);
  padding:20px 22px;box-shadow:var(--shadow)}
.switch .leaf[hidden]{display:none}

.estimator{background:var(--surface);border:1px solid var(--line);border-radius:var(--card-r);
  padding:22px;margin:1.6em 0;box-shadow:var(--shadow)}
.estimator .row{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin:.6em 0}
.estimator label{font-weight:700;min-width:180px}
.estimator input[type=range]{flex:1;min-width:160px;accent-color:var(--teal)}
.estimator output{font-weight:900;color:var(--coral-d)}
.estimator .res{margin-top:15px;padding:15px;border-radius:12px;background:#e7f1ef;font-size:1.04rem}
.estimator .res b{color:var(--teal-d)}

details.faq{background:var(--surface);border:1px solid var(--line);border-radius:13px;
  margin:.55em 0;padding:0 20px;box-shadow:var(--shadow)}
details.faq summary{cursor:pointer;padding:16px 0;font-weight:800;list-style:none;min-height:46px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary:before{content:"›";display:inline-block;color:var(--coral);font-weight:900;
  margin-right:11px;transition:transform .2s}
details.faq[open] summary:before{transform:rotate(90deg)}
details.faq .a{margin:0 0 16px;color:var(--ink)}

.zoom{position:fixed;inset:0;background:rgba(8,18,22,.88);display:flex;
  align-items:center;justify-content:center;padding:20px;z-index:90}
.zoom[hidden]{display:none}
.zoom img{max-width:96%;max-height:90vh;border-radius:13px}
.zoom button{position:absolute;top:16px;right:18px;background:#fff;border:none;
  width:44px;height:44px;border-radius:50%;font-size:1.3rem;cursor:pointer}

.uptop{position:fixed;right:18px;bottom:18px;width:48px;height:48px;border-radius:50%;
  background:var(--teal-d);color:#fff;border:none;font-size:1.3rem;cursor:pointer;
  box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .25s;z-index:70}
.uptop.show{opacity:1;pointer-events:auto}

.relrow{display:flex;flex-wrap:wrap;gap:11px;margin:1.5em 0}
.relrow a{background:#e7f1ef;border:1px solid var(--line);border-radius:999px;
  padding:9px 16px;font-weight:700;color:var(--teal-d)}
.relrow a:hover{text-decoration:none;background:#d8eae7}

footer.ground{background:#0a181d;color:#a8c8c4;margin-top:36px;padding:36px 0 18px;font-size:.93rem}
.foot-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:28px}
footer.ground h4{margin:0 0 12px;color:#e9fbf8;font-size:1rem}
footer.ground a{color:#a8c8c4}
footer.ground ul{list-style:none;padding:0;margin:0}
footer.ground li{margin:.34em 0}
.age{display:inline-block;border:2px solid var(--amber);color:var(--amber);
  border-radius:9px;padding:3px 11px;font-weight:900;margin-bottom:10px}
.fineprint{border-top:1px solid #15333a;margin-top:26px;padding-top:16px;color:#7fa9a4;font-size:.82rem}

@media(max-width:880px){
  body{font-size:16px}
  h1{font-size:1.66rem}h2{font-size:1.34rem}h3{font-size:1.1rem}
  .shell{padding:0 22px}
  .menu-btn{display:flex}
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;background:var(--deep);
    border-bottom:1px solid #15333a;padding:8px 22px 16px;box-shadow:var(--shadow)}
  .site-nav.open{display:flex}
  .site-nav a{padding:14px 8px;border-bottom:1px solid #15333a}
  .masthead-in{position:relative}
  .cover{grid-template-columns:1fr;padding:24px}
  .cols2{grid-template-columns:1fr}
  .verdict{grid-template-columns:1fr;text-align:center}
  .verdict .ring{margin:0 auto}
}