:root{--bg:#0D0C0A;--ivory:#F1EEE6;--paper:#F4F2EA;--ink:#191712;--ink-soft:#5A5A5A;
 --ember:#A34D00;--gold:#FF8A00;--line:rgba(25,23,18,.14);--ok:#1E7A46;--warn:#B26A00;--navy:#13315C;
 --serif:'Prompt',sans-serif;--sans:'Sarabun',sans-serif;--mono:'IBM Plex Mono',monospace}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.8;font-size:16px;overflow-x:hidden}
a{color:inherit}
.ac-nav{background:var(--bg);color:var(--ivory);padding:14px 0}
.ac-nav .in{width:min(1080px,92%);margin-inline:auto;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.ac-nav a{text-decoration:none;font-size:.93rem;color:rgba(241,238,230,.8)}
.ac-nav a:hover{color:var(--ember)}
.ac-nav .brand{font-family:var(--serif);font-weight:500;letter-spacing:.06em;color:var(--ivory);font-size:1.05rem}
.ac-nav .sp{flex:1}
.wrapa{width:min(1080px,92%);margin-inline:auto;padding:34px 0 60px}
h1{font-family:var(--serif);font-weight:300;font-size:clamp(1.6rem,3.6vw,2.3rem);line-height:1.42;margin-bottom:.5rem}
h2{font-family:var(--serif);font-weight:400;font-size:1.3rem;line-height:1.5;margin:30px 0 10px}
h3{font-size:1.02rem;font-weight:600;margin:14px 0 4px}
p{margin:.4rem 0}
.lead{color:var(--ink-soft);max-width:70ch}
.mono{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--ember)}
.card{background:#fff;border:1px solid var(--line);padding:22px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.course{display:flex;flex-direction:column;justify-content:space-between;min-height:200px;text-decoration:none}
.course .lv{font-family:var(--mono);font-size:.64rem;letter-spacing:.16em;color:var(--ember)}
.course h3{font-family:var(--serif);font-weight:400;font-size:1.1rem;line-height:1.5;margin:.4rem 0}
.course .sub{color:var(--ink-soft);font-size:.9rem;line-height:1.7}
.course .foot{display:flex;align-items:baseline;justify-content:space-between;margin-top:16px;gap:10px}
.price{font-family:var(--serif);font-size:1.5rem;font-weight:300}
.price small{font-size:.8rem;color:var(--ink-soft)}
.tag{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;
 border:1px solid currentColor;border-radius:999px;padding:.15em .7em}
.tag.soon{color:var(--ink-soft)}.tag.live{color:var(--ok)}
.btn{display:inline-block;background:var(--gold);color:#12100C;font-weight:700;border:none;border-radius:999px;
 padding:.9rem 2rem;font-family:var(--sans);font-size:1rem;cursor:pointer;text-decoration:none;text-align:center}
.btn[disabled]{opacity:.5;cursor:default}
.btn.dark{background:var(--bg);color:var(--ivory)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.sm{padding:.5rem 1.1rem;font-size:.86rem;font-weight:600}
label{display:block;font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
 color:#5A5A5A;margin:14px 0 5px}
input,select,textarea{width:100%;font-family:var(--sans);font-size:1rem;padding:.8rem .9rem;
 border:1px solid var(--line);border-radius:2px;background:#fff;color:var(--ink)}
input:focus,textarea:focus{outline:none;border-color:var(--ember);box-shadow:0 0 0 3px rgba(163,77,0,.14)}
.msg{margin-top:12px;line-height:1.75;font-size:.95rem}
.msg.bad{color:#B3261E}.msg.ok{color:var(--ok)}
.two{display:grid;gap:20px;grid-template-columns:1.15fr .85fr;align-items:start}
@media(max-width:820px){.two{grid-template-columns:1fr}}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft)}
.right{text-align:right}
.bar{height:6px;background:rgba(25,23,18,.1);border-radius:3px;overflow:hidden}
.vwrap{position:relative;background:#000;border-radius:10px;overflow:hidden}
.vwrap video::-webkit-media-controls-enclosure{overflow:hidden}
.wmk{position:absolute;pointer-events:none;user-select:none;z-index:3;
 font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:rgba(255,255,255,.30);
 text-shadow:0 1px 3px rgba(0,0,0,.6);transition:top 1.2s ease,left 1.2s ease;white-space:nowrap}
.bar i{display:block;height:100%;background:var(--ok)}
.st{font-family:var(--mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase}
.st.paid{color:var(--ok)}.st.pending{color:var(--warn)}.st.review{color:var(--navy)}
.qrbox{text-align:center;padding:18px;background:#fff;border:1px solid var(--line)}
.qrbox svg,.qrbox img{width:min(260px,70vw);height:auto}
.kv{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:.94rem}
.kv b{font-weight:600}
.note{font-size:.86rem;color:var(--ink-soft);line-height:1.75}
.lesson{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;
 padding:12px 2px;border-bottom:1px solid var(--line)}
.lesson .n{font-family:var(--mono);font-size:.72rem;color:var(--ember)}
.lesson.on{background:rgba(224,80,15,.05)}
.lesson button{background:none;border:none;cursor:pointer;font-family:var(--sans);font-size:.95rem;text-align:left;width:100%}
.q{border:1px solid var(--line);background:#fff;padding:16px 18px;margin:12px 0}
.q .opt{display:block;padding:8px 0;cursor:pointer;font-size:.96rem}
.q .opt input{width:auto;margin-right:8px}
footer.ac{background:var(--bg);color:rgba(241,238,230,.6);padding:22px 0;font-size:.84rem}
footer.ac .in{width:min(1080px,92%);margin-inline:auto;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* ---------- การ์ดคอร์สแบบร้านค้า ---------- */
.hero-a{background:var(--bg);color:var(--ivory);margin:-34px calc(50% - 50vw) 26px;padding:54px 0 48px;
 position:relative;overflow:hidden}
.hero-a .in{width:min(1080px,92%);margin-inline:auto;position:relative;z-index:1}
.hero-a::after{content:"";position:absolute;inset:0;
 background:radial-gradient(120% 90% at 85% 20%,rgba(224,80,15,.28),transparent 60%);pointer-events:none}
.hero-a h1{color:var(--ivory);position:relative;z-index:1;margin-bottom:.6rem}
.hero-a p{color:rgba(241,238,230,.74);max-width:64ch;position:relative;z-index:1}
.hero-a .pts{display:flex;gap:22px;flex-wrap:wrap;margin-top:22px;position:relative;z-index:1}
.hero-a .pts span{font-size:.9rem;color:rgba(241,238,230,.86)}
.hero-a .pts b{color:var(--ember);font-weight:400}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 20px}
.chip{font-size:.86rem;padding:.42em 1.1em;border-radius:999px;border:1px solid var(--line);
 background:#fff;cursor:pointer;font-family:var(--sans);color:var(--ink)}
.chip.on{background:var(--bg);color:var(--ivory);border-color:var(--bg)}
.cgrid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.ccard{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;text-decoration:none;
 display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease}
.ccard:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(25,23,18,.14)}
.ccard:hover .cimg img{transform:scale(1.06)}
.cimg{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.cimg img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.cimg::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(13,12,10,.55),transparent 55%)}
.cbadge{position:absolute;top:12px;left:0;z-index:2;background:var(--ember);color:#fff;font-size:.72rem;
 font-weight:700;letter-spacing:.06em;padding:.34em 1em .34em .9em;border-radius:0 999px 999px 0}
.clv{position:absolute;top:12px;right:12px;z-index:2;background:rgba(13,12,10,.72);color:var(--ivory);
 font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;padding:.34em .8em;border-radius:999px}
.csoon .cimg img{filter:grayscale(.75) brightness(.8)}
.cbody{padding:18px 20px 0;flex:1}
.cbody h3{font-family:var(--serif);font-weight:500;font-size:1.14rem;line-height:1.5;margin:0 0 6px;color:var(--ink)}
.csub{color:var(--ink-soft);font-size:.9rem;line-height:1.7;margin:0}
.cmeta{margin-top:12px;font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;color:var(--ink-soft);
 text-transform:uppercase}
.cins{display:flex;align-items:center;gap:9px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.cins img{width:34px;height:34px;border-radius:50%;object-fit:cover}
.cins span{font-size:.86rem;color:var(--ink-soft)}
.cfoot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px 18px}
.cprice{font-family:var(--serif);font-size:1.6rem;font-weight:300;color:var(--ink);line-height:1}
.cwas{font-size:.85rem;color:var(--ink-soft);text-decoration:line-through;margin-left:6px}
.cvat{font-size:.72rem;color:var(--ink-soft);margin-top:3px;line-height:1.5}
.cbtn{background:var(--gold);color:#12100C;font-weight:700;font-size:.9rem;border-radius:999px;padding:.62em 1.4em;
 white-space:nowrap}
.csoon .cbtn{background:transparent;color:var(--ink-soft);border:1px solid var(--line);font-weight:600}
.trust{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));margin-top:30px}
.trust .t{background:#fff;border:1px solid var(--line);padding:18px 20px;border-radius:10px}
.trust .t b{display:block;font-family:var(--serif);font-weight:400;font-size:1.02rem;margin-bottom:4px}
.gal{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-top:14px}
.gal img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:8px;display:block;
 filter:saturate(.95);transition:transform .3s ease}
.gal img:hover{transform:scale(1.02)}