*,*::before,*::after{box-sizing:border-box}
:root{
--bg:#020617;--surface:#070f2e;--surface-2:#0b1440;--text:#e8ecf6;--heading:#f8fafc;
--muted:#a6b0c3;--primary:#8b5cf6;--primary-2:#a78bfa;--accent:#22d3ee;--gold:#fbbf24;
--border:rgba(255,255,255,.12);--radius:18px;--shadow:0 18px 50px rgba(2,6,23,.55);
--maxw:1180px}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:Sarabun,system-ui,-apple-system,"Segoe UI",sans-serif;
font-size:17px;line-height:1.78;font-weight:400;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
background:radial-gradient(900px 480px at 12% -8%,rgba(139,92,246,.22),transparent 65%),
radial-gradient(760px 420px at 92% 4%,rgba(34,211,238,.14),transparent 60%),
radial-gradient(700px 500px at 50% 110%,rgba(139,92,246,.12),transparent 65%)}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-2);text-decoration:none}
a:hover{color:#c4b5fd}
h1,h2,h3,h4{color:var(--heading);font-weight:800;line-height:1.35;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(28px,4.2vw,46px)}
h2{font-size:clamp(23px,2.9vw,33px)}
h3{font-size:clamp(19px,2.1vw,23px);font-weight:700}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.1em;padding-left:1.35em}
li{margin-bottom:.45em}
strong{color:#fff;font-weight:700}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:60;background:rgba(2,6,23,.86);
backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.head-inner{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:23px;color:#fff;letter-spacing:.5px;flex:0 0 auto}
.brand:hover{color:#fff}
.logo-mark{width:66px;height:44px;flex:0 0 auto}
.brand small{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.3px;line-height:1.2}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav a{color:#cbd5e1;font-size:15.5px;padding:9px 11px;border-radius:10px;white-space:nowrap}
.nav a:hover,.nav a[aria-current="page"]{color:#fff;background:rgba(139,92,246,.18)}
.head-cta{display:flex;gap:10px;align-items:center;flex:0 0 auto}
#navtog{display:none}
.navburger{display:none;margin-left:auto;background:rgba(139,92,246,.16);border:1px solid var(--border);
color:#fff;border-radius:12px;padding:14px 12px;font-size:20px;cursor:pointer}
.navburger .bars,.navburger .bars::before,.navburger .bars::after{display:block;width:22px;height:2px;
background:#e8ecf6;border-radius:2px;position:relative}
.navburger .bars::before,.navburger .bars::after{content:"";position:absolute;left:0}
.navburger .bars::before{top:-7px}.navburger .bars::after{top:7px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:999px;
font-weight:700;font-size:16px;line-height:1.2;border:1px solid transparent;transition:.18s;text-align:center}
.btn-primary{background:linear-gradient(135deg,#8b5cf6,#6366f1);color:#fff;box-shadow:0 10px 26px rgba(139,92,246,.42)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 32px rgba(139,92,246,.55)}
.btn-outline{border-color:rgba(167,139,250,.55);color:#e9d5ff;background:rgba(139,92,246,.08)}
.btn-outline:hover{background:rgba(139,92,246,.2);color:#fff}
.btn-gold{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#241a00;box-shadow:0 10px 26px rgba(251,191,36,.32)}
.btn-gold:hover{color:#241a00;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14.5px}
.btn-block{width:100%}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:46px 0 40px;overflow:hidden;border-bottom:1px solid var(--border)}
.hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:38px;align-items:center}
.hero-copy h1{margin-bottom:.35em}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;letter-spacing:.14em;
text-transform:uppercase;color:#c4b5fd;background:rgba(139,92,246,.14);border:1px solid rgba(167,139,250,.35);
padding:7px 15px;border-radius:999px;margin-bottom:16px}
.leaf,.lead{font-size:clamp(16.5px,1.5vw,19px);color:#cfd8e6;margin-bottom:1.4em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.hero-note{font-size:14px;color:var(--muted);margin:0}
.hero-media{position:relative;border-radius:24px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(2,6,23,.55))}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:14px;color:var(--muted);padding:16px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumbs li::after{content:"›";margin-left:6px;color:#64748b}
.crumbs li:last-child::after{content:""}
.crumbs a{color:#a5b4fc}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:34px;align-items:start;padding:34px 0 10px}
.layout>*{min-width:0}
.toc{position:sticky;top:92px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
padding:20px 18px}
.toc h2{font-size:15px;letter-spacing:.1em;text-transform:uppercase;color:#c4b5fd;margin:0 0 12px}
.toc ol{list-style:none;padding:0;margin:0;counter-reset:t}
.toc li{counter-increment:t;margin-bottom:2px}
.toc a{display:block;padding:8px 10px 8px 30px;border-radius:9px;color:#cbd5e1;font-size:14.8px;position:relative;line-height:1.45}
.toc a::before{content:counter(t);position:absolute;left:4px;top:8px;width:20px;height:20px;border-radius:6px;
background:rgba(139,92,246,.18);color:#c4b5fd;font-size:12px;font-weight:700;display:grid;place-items:center}
.toc a:hover{background:rgba(139,92,246,.14);color:#fff}

/* ---------- article ---------- */
.article-body{min-width:0}
.sec{margin-bottom:44px;scroll-margin-top:96px}
.sec>h2{position:relative;padding-bottom:12px;margin-bottom:18px}
.sec>h2::after{content:"";position:absolute;left:0;bottom:0;width:74px;height:4px;border-radius:4px;
background:linear-gradient(90deg,#8b5cf6,#22d3ee)}
.sec h3{margin-top:1.5em;margin-bottom:.45em}
.article-body h3::before{content:"";display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:9px;
background:var(--gold);vertical-align:middle;transform:rotate(45deg)}
.figure{margin:26px 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--surface)}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{font-size:13.8px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--border)}

/* cards & grids */
.grid{display:grid;gap:18px;margin:24px 0}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid>*{min-width:0}
.card{background:linear-gradient(160deg,var(--surface),#040922);border:1px solid var(--border);border-radius:var(--radius);
padding:20px;transition:.2s}
.card:hover{border-color:rgba(167,139,250,.5);transform:translateY(-3px)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;margin-bottom:14px}
.card h3{margin:.1em 0 .4em;font-size:19px}
.card h3::before{display:none}
.card p{font-size:15.4px;color:#c3cddd;margin-bottom:.55em}
.card .badge{display:inline-block}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:26px 0}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px 14px;text-align:center}
.stat b{display:block;font-size:clamp(22px,2.6vw,30px);color:#fff;line-height:1.2;
background:linear-gradient(135deg,#fff,#c4b5fd);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat span{font-size:13.6px;color:var(--muted)}

/* table */
.table-wrap{overflow-x:auto;margin:24px 0;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}
table{width:100%;border-collapse:collapse;font-size:15.3px;min-width:520px}
caption{text-align:left;padding:14px 16px 4px;font-size:14px;color:var(--muted)}
th,td{padding:12px 15px;text-align:left;border-bottom:1px solid rgba(255,255,255,.07);vertical-align:top}
thead th{background:rgba(139,92,246,.16);color:#fff;font-weight:700;font-size:14.6px;white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(139,92,246,.07)}
td b{color:#fff}

/* steps */
.steps{list-style:none;padding:0;margin:24px 0;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:16px 18px 16px 62px;background:var(--surface);
border:1px solid var(--border);border-radius:16px;margin-bottom:12px}
.steps li::before{content:counter(s);position:absolute;left:16px;top:16px;width:32px;height:32px;border-radius:10px;
background:linear-gradient(135deg,#8b5cf6,#6366f1);color:#fff;font-weight:800;display:grid;place-items:center;font-size:15px}
.steps li b{display:block;color:#fff;margin-bottom:2px}

/* callouts */
.note,.warn,.tip{border-radius:14px;padding:16px 18px;margin:22px 0;font-size:15.6px;border:1px solid var(--border)}
.note{background:rgba(34,211,238,.08);border-color:rgba(34,211,238,.32)}
.warn{background:rgba(251,191,36,.08);border-color:rgba(251,191,36,.35)}
.tip{background:rgba(139,92,246,.1);border-color:rgba(167,139,250,.35)}
.note b,.warn b,.tip b{color:#fff}
blockquote{margin:24px 0;padding:18px 22px;border-left:4px solid var(--primary);background:rgba(139,92,246,.08);
border-radius:0 14px 14px 0;font-size:16.4px;color:#dde5f2}
blockquote cite{display:block;font-size:13.6px;color:var(--muted);font-style:normal;margin-top:8px}

/* inline affiliate box */
.cta-inline{display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
background:linear-gradient(120deg,rgba(139,92,246,.22),rgba(34,211,238,.12));border:1px solid rgba(167,139,250,.42);
border-radius:var(--radius);padding:20px 22px;margin:28px 0}
.cta-inline p{margin:0;font-size:15.6px;color:#e3e9f4;flex:1 1 320px}
.cta-inline b{display:block;font-size:18px;color:#fff;margin-bottom:2px}

/* faq */
.faq{margin:22px 0}
.faq-item{border:1px solid var(--border);border-radius:14px;background:var(--surface);margin-bottom:11px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:15px 46px 15px 18px;font-weight:700;color:#fff;position:relative;list-style:none;font-size:16.4px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
width:24px;height:24px;border-radius:8px;background:rgba(139,92,246,.22);color:#c4b5fd;display:grid;place-items:center;font-weight:700}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-a{padding:0 18px 16px;color:#cbd5e1;font-size:15.6px}
.faq-item .faq-a p:last-child{margin-bottom:0}

/* badges & meta */
.badge{display:inline-block;font-size:12.6px;font-weight:700;letter-spacing:.04em;padding:4px 11px;border-radius:999px;
background:rgba(34,211,238,.14);color:#67e8f9;border:1px solid rgba(34,211,238,.32)}
.badge.gold{background:rgba(251,191,36,.14);color:#fcd34d;border-color:rgba(251,191,36,.34)}
.badge.violet{background:rgba(139,92,246,.18);color:#c4b5fd;border-color:rgba(167,139,250,.4)}
.meta-line{font-size:14px;color:var(--muted);margin-bottom:18px}
.checklist{list-style:none;padding:0}
.checklist li{padding-left:30px;position:relative}
.checklist li::before{content:"✓";position:absolute;left:0;top:1px;color:#34d399;font-weight:800}
.kv{display:grid;grid-template-columns:minmax(120px,180px) 1fr;gap:0;margin:22px 0;border:1px solid var(--border);
border-radius:var(--radius);overflow:hidden;background:var(--surface);font-size:15.6px}
.kv dt{padding:12px 16px;background:rgba(139,92,246,.12);color:#fff;font-weight:700;border-bottom:1px solid rgba(255,255,255,.07)}
.kv dd{padding:12px 16px;margin:0;border-bottom:1px solid rgba(255,255,255,.07)}
.kv dt:last-of-type,.kv dd:last-of-type{border-bottom:0}

/* cta band */
.cta-band{position:relative;margin:56px 0 0;padding:52px 0;border-top:1px solid var(--border);
border-bottom:1px solid var(--border);
background:linear-gradient(120deg,rgba(139,92,246,.2),rgba(34,211,238,.08));text-align:center}
.cta-band h2{margin-bottom:.3em}
.cta-band p{max-width:720px;margin:0 auto 22px;color:#cfd8e6}
.cta-band .btn-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* footer */
.site-foot{background:#01040f;border-top:1px solid var(--border);padding:46px 0 26px;font-size:15px;position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.foot-brand p{color:var(--muted);font-size:14.6px;max-width:340px}
.foot-col h3{font-size:15px;letter-spacing:.1em;text-transform:uppercase;color:#c4b5fd;margin-bottom:12px}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col a{color:#b8c2d4;font-size:14.8px}
.foot-col a:hover{color:#fff}
.foot-bottom{margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:#7d8798;font-size:13.6px}
.resp-note{background:rgba(251,191,36,.07);border:1px solid rgba(251,191,36,.28);border-radius:14px;
padding:14px 18px;margin-top:26px;font-size:13.9px;color:#d9c9a3}
.age18{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:2px solid #fbbf24;
color:#fbbf24;font-weight:800;font-size:13px;margin-right:8px;vertical-align:middle}

/* sticky mobile cta */
.sticky-cta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;gap:10px;padding:10px 12px;
background:rgba(2,6,23,.94);border-top:1px solid var(--border);backdrop-filter:blur(10px)}
.sticky-cta .btn{flex:1 1 0;padding:12px 8px;font-size:15px}

/* misc */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:-999px;top:0;background:#8b5cf6;color:#fff;padding:10px 16px;z-index:100;border-radius:0 0 10px 0}
.skip:focus{left:0}
.center{text-align:center}
.mt0{margin-top:0}

/* ---------- responsive ---------- */
@media(max-width:1080px){
.hero-inner{grid-template-columns:1fr;gap:26px}
.hero-media img{aspect-ratio:16/9}
.layout{grid-template-columns:1fr}
.toc{position:static;order:-1}
.toc ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 10px}
.nav{display:none;position:absolute;left:0;right:0;top:100%;background:#040a22;flex-direction:column;
align-items:stretch;padding:12px;border-bottom:1px solid var(--border);gap:2px}
#navtog:checked~.nav{display:flex}
.navburger{display:block}
.head-cta .btn-login{display:none}
.foot-grid{grid-template-columns:1fr 1fr}
.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:720px){
body{font-size:16.4px}
.head-cta{display:none}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
.stats{grid-template-columns:repeat(2,minmax(0,1fr))}
.toc ol{grid-template-columns:1fr}
.foot-grid{grid-template-columns:1fr}
.sticky-cta{display:flex}
body{padding-bottom:76px}
.cta-band{padding:40px 0}
.kv{grid-template-columns:1fr}
.kv dt{border-bottom:0}
.crumbs{font-size:13.2px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}