:root{
  --bg:#0d1322; --bg2:#121a2e; --card:#172139; --line:#27324f;
  --txt:#e9eef8; --dim:#9aa7c2; --cyan:#33c6dd; --cyan-d:#1f9fb6;
  --amber:#f5a524; --amber-d:#d4881a; --ink:#06101f; --ok:#7fe6c4; --no:#f3a3a3; --rad:14px;
}
*{box-sizing:border-box}
html,body{width:100%;overflow-x:hidden;margin:0;padding:0}
body{background:var(--bg);color:var(--txt);font-family:'Manrope',system-ui,Segoe UI,Arial,sans-serif;line-height:1.72;font-size:17px}
a{color:var(--cyan)}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px}
.skip:focus{left:8px;top:8px;background:#fff;color:#000;padding:8px;z-index:99}
main{max-width:900px;margin:0 auto;padding:22px 16px 64px}
h1,h2,h3{font-family:'Space Grotesk','Segoe UI',sans-serif}
h1{font-size:2.0em;line-height:1.18;font-weight:700;margin:.2em 0 .2em;letter-spacing:-.5px}
h2{font-size:1.42em;font-weight:600;margin:1.9em 0 .5em;padding-left:13px;border-left:4px solid var(--cyan)}
h3{font-size:1.1em;font-weight:600;margin:1.1em 0 .4em}
p{margin:.7em 0}
ul,ol{margin:.6em 0}
.date{color:var(--dim);font-size:.84em;margin-top:0}
.intro{background:linear-gradient(135deg,rgba(51,198,221,.14),rgba(245,165,36,.07));border:1px solid var(--line);border-left:4px solid var(--amber);border-radius:var(--rad);padding:16px 18px;font-size:1.05em}
/* header */
.bar{position:sticky;top:0;z-index:50;background:rgba(13,19,34,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar-in{max-width:1120px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:11px 16px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--txt);font-weight:700}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),var(--cyan-d));color:var(--ink);font-weight:800;font-size:.95em;letter-spacing:.5px;font-family:'Space Grotesk',sans-serif}
.brand-txt{font-size:1.02em;font-family:'Space Grotesk',sans-serif;line-height:1.05}
.brand-txt small{display:block;font-family:'Manrope',sans-serif;font-size:.6em;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--amber)}
.nav{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav a{color:var(--dim);text-decoration:none;font-size:.95em;font-weight:600}
.nav a:hover,.nav a.on{color:var(--txt)}
.btn{display:inline-block;border-radius:10px;font-weight:700;text-decoration:none;cursor:pointer;text-align:center;background:linear-gradient(135deg,var(--cyan),var(--cyan-d));color:var(--ink);padding:11px 21px;border:0}
.btn:hover{filter:brightness(1.08)}
.btn-bar{padding:9px 17px;font-size:.92em}
.btn-hero{font-size:1.12em;padding:15px 32px;background:linear-gradient(135deg,var(--amber),var(--amber-d));color:var(--ink)}
.burger{display:none;background:none;border:0;flex-direction:column;gap:5px;cursor:pointer;padding:8px;margin-left:auto}
.burger span{display:block;width:26px;height:3px;background:var(--txt);border-radius:2px;transition:.2s}
.burger[aria-expanded=true] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger[aria-expanded=true] span:nth-child(2){opacity:0}
.burger[aria-expanded=true] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
/* breadcrumb */
.trail{font-size:.84em;color:var(--dim);margin:4px 0 12px}
.trail a{color:var(--dim);text-decoration:none}
.trail a:hover{color:var(--txt)}
.trail span{color:var(--txt)}
.home-trail{display:none}
/* score meter */
.meter{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:16px 18px;margin:14px 0 20px}
.meter-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.meter-label{color:var(--dim);font-weight:600;font-size:.9em;text-transform:uppercase;letter-spacing:1px}
.meter-num{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.9em;color:var(--cyan)}
.meter-num small{font-size:.5em;color:var(--dim)}
.meter-track{height:10px;border-radius:6px;background:rgba(255,255,255,.06);margin-top:10px;overflow:hidden}
.meter-fill{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--cyan),var(--amber))}
/* pills */
.pill-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0}
.pill{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;display:flex;flex-direction:column;gap:5px}
.pill-v{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.15em;color:var(--amber)}
.pill-k{color:var(--dim);font-size:.78em}
/* button wrap */
.btn-wrap{text-align:center;margin:28px 0}
/* verdict bars */
.card{background:var(--bg2);border:1px solid var(--line);border-radius:18px;padding:20px;margin:24px 0}
.vd-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 24px}
.vd-top{display:flex;justify-content:space-between;font-size:.92em;margin-bottom:5px}
.vd-top b{color:var(--cyan)}
.vd-track{height:8px;border-radius:5px;background:rgba(255,255,255,.07);overflow:hidden}
.vd-track span{display:block;height:100%;background:linear-gradient(90deg,var(--cyan-d),var(--cyan))}
.vd-note{margin:16px 0 0;color:var(--dim);font-size:.92em}
/* pros/cons */
.pc{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}
.pc-col{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:15px}
.pc-plus h3{color:var(--ok);margin-top:0}
.pc-minus h3{color:var(--no);margin-top:0}
.pc-col ul{margin:0;padding-left:18px}
.pc-col li{margin:.35em 0}
/* tabs */
.tabs{margin:20px 0}
.tab-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.tab-btn{background:var(--card);border:1px solid var(--line);color:var(--dim);border-radius:10px;padding:9px 16px;cursor:pointer;font-weight:600;font-family:'Manrope',sans-serif;font-size:.92em;min-height:42px}
.tab-btn.on{background:linear-gradient(135deg,var(--cyan),var(--cyan-d));color:var(--ink);border-color:transparent}
.tab-pane{display:none;background:var(--card);border:1px solid var(--line);border-radius:13px;padding:6px 18px}
.tab-pane.on{display:block}
.tab-pane ul{padding-left:18px}
/* calculator */
.calc{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin:22px 0}
.calc-head{font-family:'Space Grotesk',sans-serif;font-weight:600;margin-bottom:12px}
.calc-row{display:flex;align-items:center;gap:14px;font-weight:600}
.calc-row input[type=range]{flex:1;accent-color:var(--cyan)}
.calc-out{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0 4px}
.calc-out>div{background:var(--bg2);border:1px solid var(--line);border-radius:11px;padding:12px;text-align:center;display:flex;flex-direction:column;gap:4px}
.calc-k{color:var(--dim);font-size:.78em}
.calc-v{font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--cyan);font-size:1.1em}
.calc-note{color:var(--dim);font-size:.85em;margin:8px 0 0}
/* tables */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:18px 0;border:1px solid var(--line);border-radius:13px}
table{border-collapse:collapse;width:100%;min-width:460px}
th,td{padding:12px 15px;text-align:left;border-bottom:1px solid var(--line)}
th{background:var(--bg2);font-weight:700}
tbody tr:last-child td{border-bottom:0}
/* steps */
.steps{counter-reset:s;list-style:none;padding:0;margin:16px 0}
.steps li{position:relative;padding:11px 14px 11px 50px;background:var(--card);border:1px solid var(--line);border-radius:12px;margin:9px 0}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:11px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:9px;background:var(--cyan);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.85em}
/* figures */
.shot{margin:22px 0;text-align:center;cursor:zoom-in}
.shot img{width:92%;border-radius:13px;box-shadow:0 10px 30px rgba(0,0,0,.5)}
.shot figcaption{color:var(--dim);font-size:.85em;margin-top:8px}
/* faq */
.faq{margin:32px 0}
.acc{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:10px 0;overflow:hidden}
.acc summary{cursor:pointer;padding:15px 16px;font-weight:600;list-style:none;min-height:44px;display:flex;align-items:center;font-family:'Space Grotesk',sans-serif}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:"+";margin-left:auto;color:var(--amber);font-size:1.35em}
.acc[open] summary::after{content:"–"}
.acc-body{padding:0 16px 15px;color:var(--dim)}
/* footer */
.foot{background:var(--bg2);border-top:1px solid var(--line);margin-top:46px}
.foot-grid{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:24px;padding:32px 16px}
.foot-name{font-weight:700;font-size:1.12em;margin-bottom:8px;font-family:'Space Grotesk',sans-serif}
.foot-tag{color:var(--amber);font-size:.66em;letter-spacing:2px;text-transform:uppercase}
.foot h3{font-size:.95em;margin:0 0 10px;font-family:'Manrope',sans-serif}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin:.3em 0}
.foot a{color:var(--dim);text-decoration:none}
.foot a:hover{color:var(--txt)}
.dim{color:var(--dim);font-size:.85em}
.age{display:inline-block;border:2px solid var(--no);color:var(--no);border-radius:8px;padding:2px 9px;font-weight:800;margin-top:8px}
.foot-legal{max-width:1120px;margin:0 auto;padding:16px;border-top:1px solid var(--line);color:var(--dim);font-size:.8em}
/* back to top */
.top{position:fixed;right:16px;bottom:16px;z-index:60;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:var(--cyan);color:var(--ink);font-size:1.3em;font-weight:800;cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.4)}
/* lightbox */
.lightbox{position:fixed;inset:0;z-index:80;background:rgba(4,8,16,.92);display:flex;align-items:center;justify-content:center;padding:20px;cursor:zoom-out}
.lightbox[hidden]{display:none}
.lightbox img{max-width:96%;max-height:92%;border-radius:12px}
@media(max-width:860px){
  .pill-row{grid-template-columns:repeat(2,1fr)}
  .vd-grid{grid-template-columns:1fr}
  .calc-out{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  body{font-size:16px}
  h1{font-size:1.55em}h2{font-size:1.25em}h3{font-size:1.06em}
  main{padding:14px 12px 44px}
  .burger{display:flex}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--bg2);border-bottom:1px solid var(--line);padding:8px 12px 14px}
  .nav.open{display:flex}
  .nav a{padding:12px 6px;border-bottom:1px solid var(--line)}
  .btn-bar{margin-top:10px;border-bottom:0!important}
  .pc{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .shot img{width:100%}
}