:root{--accent:#1f5c4a;--ink:#16141f;--muted:#6b6880;--line:#e8e6ef;--bg:#f7f6fb;--card:#fff;--ok:#0f8a4f;--warn:#b26b00;--err:#c62828;--r:14px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--accent)}
h1{font-size:clamp(1.6rem,4vw,2.2rem);line-height:1.2;margin:.2em 0 .5em;letter-spacing:-.02em}
h2{font-size:1.25rem;margin:1.4em 0 .6em}h3{margin:.3em 0}
img{max-width:100%}
main{max-width:1120px;margin:0 auto;padding:16px}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.topbar nav{display:flex;gap:16px;align-items:center}
.topbar nav a{text-decoration:none;color:var(--ink);font-weight:500}
.brand{font-weight:800;font-size:1.2rem;text-decoration:none;color:var(--ink)!important;letter-spacing:-.02em}
.demo-banner{background:#fff4d6;color:#7a5200;text-align:center;font-size:.85rem;padding:6px}
.foot{text-align:center;color:var(--muted);font-size:.85rem;padding:32px 16px}
.foot a{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin:0 0 16px}
.narrow{max-width:440px;margin:40px auto}
.center{text-align:center}.right{text-align:right}
.muted{color:var(--muted)}.small,small{font-size:.85rem}
small{display:block;color:var(--muted);margin-top:4px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--accent);color:#fff!important;border:0;border-radius:10px;padding:11px 18px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap}
.btn:hover{filter:brightness(1.08)}.btn:disabled{opacity:.6;cursor:wait}
.btn.sm{padding:7px 12px;font-size:.88rem;border-radius:8px}
.btn.lg{padding:14px 26px;font-size:1.05rem;width:auto}
.btn.ghost{background:transparent;color:var(--accent)!important;border:1.5px solid var(--accent)}
.btn.danger{background:var(--err)}
button.link{background:none;border:0;color:var(--ink);font:inherit;font-weight:500;cursor:pointer;padding:0}
form.inline{display:inline}
.stack{display:flex;flex-direction:column;gap:14px}.stack.tight{gap:4px}
.row{display:flex;gap:10px;align-items:center}.row.between{justify-content:space-between}.wrap{flex-wrap:wrap}
.center-row{justify-content:center}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.92rem}
label.check{flex-direction:row;align-items:center;gap:8px}
input,textarea,select{font:inherit;font-weight:400;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);width:100%}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent)}
input[type=checkbox]{width:auto}input[type=color]{height:44px;padding:4px;width:80px}
input.num{width:80px}
fieldset{border:1.5px dashed var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:12px}
legend{font-weight:700;padding:0 6px}
.prefix{display:flex;align-items:stretch;border:1.5px solid var(--line);border-radius:10px;overflow:hidden}
.prefix span{background:var(--bg);padding:10px;color:var(--muted);font-weight:400;font-size:.9rem;display:flex;align-items:center}
.prefix input{border:0;border-radius:0}
.flash{background:#e9f7ef;border:1px solid #bfe6cf;color:#0b5d36;padding:12px 14px;border-radius:10px;margin-bottom:16px}
.flash.err{background:#fdecec;border-color:#f5c2c2;color:var(--err)}
.flash.warn{background:#fff6e5;border-color:#f3dba8;color:#7a4b00}
.err-msg{color:var(--err);margin:0;font-size:.9rem}
.pill{display:inline-block;background:color-mix(in srgb,var(--accent) 12%,#fff);color:var(--accent);font-size:.78rem;font-weight:700;padding:3px 10px;border-radius:99px}
.ok{color:var(--ok)}.warn-t{color:var(--warn);font-weight:600}
/* landing */
.hero{text-align:center;padding:56px 8px 32px}
.hero h1{font-size:clamp(2rem,6vw,3.4rem)}
.hero p{max-width:620px;margin:0 auto 24px;color:var(--muted);font-size:1.1rem}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.feature .ico{font-size:2rem}
.pick{text-decoration:none;color:inherit;transition:transform .15s,border-color .15s}
.pick:hover{border-color:var(--accent);transform:translateY(-2px)}
.steps ol{padding-left:20px}.steps li{margin:8px 0}
/* dashboard */
.dash{display:grid;grid-template-columns:200px 1fr;gap:24px;align-items:start}
.side{display:flex;flex-direction:column;gap:4px;position:sticky;top:76px}
.side a{padding:9px 12px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:500}
.side a.on,.side a:hover{background:#fff;border:1px solid var(--line)}
.dash-main{min-width:0}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:8px}
.stat span{color:var(--muted);font-size:.85rem}.stat b{display:block;font-size:1.5rem;margin-top:4px}
.tbl-wrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-size:.92rem}
.tbl th,.tbl td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{background:var(--bg);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.prow{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.prow h3 a{color:var(--ink);text-decoration:none}
.thumb{max-width:160px;border-radius:10px;border:1px solid var(--line)}.thumb.round{width:72px;height:72px;object-fit:cover;border-radius:50%}
.lessons-admin{padding-left:20px}.lessons-admin li{margin-bottom:12px}
.lesson-row{display:grid;grid-template-columns:1fr 1.4fr 80px;gap:8px}
.lesson-row textarea,.lesson-row .row{grid-column:1/-1}
.st{font-size:.8rem;font-weight:700;padding:2px 8px;border-radius:99px;background:var(--bg)}
.st.paid{background:#e9f7ef;color:var(--ok)}.st.failed{background:#fdecec;color:var(--err)}
/* product page */
.pp{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:start;margin-top:12px}
.pp-buy{position:sticky;top:20px}
.creator{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:600;margin-bottom:16px}
.creator img,.creator .avatar-ph{width:40px;height:40px;border-radius:50%;object-fit:cover}
.avatar-ph{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-weight:700;text-transform:uppercase}
.cover{width:100%;border-radius:var(--r);margin-bottom:16px;aspect-ratio:16/9;object-fit:cover}
.lead{font-size:1.15rem;color:var(--muted);margin-top:0}
.meta{font-weight:600;margin:8px 0 16px}
.desc{white-space:normal}.desc p{margin:0 0 1em}
.lesson-list li{margin:4px 0}
.price{font-size:2rem;font-weight:800;margin-bottom:16px}
.price s{font-size:1.1rem;color:var(--muted);font-weight:500;margin-left:8px}
.off{font-size:.85rem;background:#e9f7ef;color:var(--ok);padding:3px 8px;border-radius:6px;margin-left:6px;vertical-align:middle}
.pp-buy .btn{width:100%}
/* store */
.store{max-width:760px;margin:0 auto}
.store-head{text-align:center;padding:24px 0}
.avatar{width:110px;height:110px;border-radius:50%;object-fit:cover;border:4px solid #fff;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.avatar.big{font-size:2.6rem}
.store-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.product-card{padding:0;overflow:hidden;text-decoration:none;color:inherit;transition:transform .15s}
.product-card:hover{transform:translateY(-3px)}
.product-card img,.cover-ph{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.cover-ph{display:flex;align-items:center;justify-content:center;font-size:3rem;background:color-mix(in srgb,var(--accent) 10%,#fff)}
.pc-body{padding:14px 16px}
/* access */
.access{max-width:680px;margin:24px auto}.access.wide{max-width:1100px}
.note{background:var(--bg);border-radius:10px;padding:12px 16px;margin:12px 0}
.big-ico{font-size:3rem}
.course{display:grid;grid-template-columns:260px 1fr;gap:20px;margin-top:16px}
.course-nav{display:flex;flex-direction:column;gap:2px;border-right:1px solid var(--line);padding-right:12px}
.course-nav a{padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--ink);font-size:.92rem}
.course-nav a.on{background:color-mix(in srgb,var(--accent) 12%,#fff);color:var(--accent);font-weight:600}
.video{position:relative;width:100%;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000;margin:12px 0}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
video.video{display:block}
@media (max-width:820px){
  .grid4,.stats{grid-template-columns:1fr 1fr}
  .dash{grid-template-columns:1fr}
  .side{flex-direction:row;overflow-x:auto;position:static;white-space:nowrap}
  .pp,.course{grid-template-columns:1fr}
  .pp-buy{position:static}
  .course-nav{border-right:0;border-bottom:1px solid var(--line);padding:0 0 12px}
}
@media (max-width:520px){
  .row2,.grid2,.store-grid,.grid4{grid-template-columns:1fr}
  .lesson-row{grid-template-columns:1fr}
  .topbar{padding:12px 16px}.topbar nav{gap:10px}
  .card{padding:16px}
}

/* ---- v2 ---- */
:root{--accent:#1f5c4a}
.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:24px 0}
.ticks{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:8px 24px}
.ticks li::before{content:"✓ ";color:var(--ok);font-weight:700}
.foot-links{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:8px}
a.plain{text-decoration:none;color:inherit}
button.link.u{text-decoration:underline;color:inherit;font-weight:600}
.bump{flex-direction:row;align-items:flex-start;gap:10px;border:2px dashed #e0b25c;background:#fff8ea;border-radius:10px;padding:12px;font-weight:400}
.bump input{margin-top:4px}
details.coupon summary,details.more summary{cursor:pointer;color:var(--accent);font-weight:600;font-size:.92rem}
details.coupon .row{margin-top:8px}
details.more{border:1.5px solid var(--line);border-radius:12px;padding:12px 14px}
details.more[open] summary{margin-bottom:12px}
details.more fieldset{margin-bottom:12px}
.ok{color:var(--ok)}
.countdown{background:#fff4e0;color:#8a4b00;border-radius:10px;padding:8px 12px;margin-bottom:12px;font-size:.92rem}
.countdown b{font-variant-numeric:tabular-nums}
.total{font-size:1.05rem}
.progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin-top:12px}
.progress div{height:100%;background:var(--accent)}
.bars{display:flex;align-items:flex-end;gap:3px;height:140px;margin:12px 0 6px}
.bar{flex:1;height:100%;display:flex;align-items:flex-end;background:var(--bg);border-radius:4px}
.bar i{display:block;width:100%;background:var(--accent);border-radius:4px;min-height:2px}
tr.refunded td{opacity:.55}
.legal{max-width:760px;margin:20px auto}.legal h2{font-size:1.1rem}.legal p,.legal li{color:#33303f}
.receipt{max-width:760px;margin:20px auto}
.g2r{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:16px 0}
.g2r small{display:block;text-transform:uppercase;letter-spacing:.05em;font-size:.72rem}
.cert{max-width:900px;margin:20px auto}
.cert-inner{background:#fff;border:10px double var(--accent);padding:48px 32px;text-align:center}
.cert-inner h1{font-size:clamp(2rem,6vw,3rem);margin:.3em 0;font-family:Georgia,serif}
.cert-inner h2{font-size:1.5rem;color:var(--accent)}
.cert-kicker{text-transform:uppercase;letter-spacing:.2em;font-weight:700;color:var(--accent)}
.cert-foot{display:flex;justify-content:space-around;gap:16px;flex-wrap:wrap;margin-top:40px;border-top:1px solid var(--line);padding-top:16px}
td.r,th.r{text-align:right}
.st.refunded{background:#fff6e5;color:var(--warn)}
@media (max-width:820px){.grid5{grid-template-columns:1fr 1fr}.ticks{grid-template-columns:1fr}}
@media (max-width:520px){.grid5,.g2r{grid-template-columns:1fr}}
@media print{.noprint,.topbar,.foot,.demo-banner{display:none!important}body{background:#fff}.card{border:0}}
/* Auto DM */
.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.media-pick{position:relative;flex-direction:column;gap:4px;font-weight:400;font-size:.78rem;border:2px solid var(--line);border-radius:10px;padding:6px;cursor:pointer}
.media-pick:has(input:checked){border-color:var(--accent)}
.media-pick img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:6px}
.media-pick input[type=radio]{position:absolute;top:10px;left:10px;width:auto}
.thumb.sq{width:56px;height:56px;object-fit:cover;border-radius:8px;flex:none}
.thumb.sq.ph{display:inline-flex;align-items:center;justify-content:center;text-align:center;font-size:.7rem;background:var(--bg);color:var(--muted);line-height:1.1}
.thumb.round.sm{width:44px;height:44px}
.stats.three{grid-template-columns:repeat(3,1fr)}
.card.paused{opacity:.65}
pre.dm{white-space:pre-wrap;font:inherit;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px;margin:6px 0}
@media (max-width:520px){.stats.three{grid-template-columns:1fr}}
/* plans */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:20px 0 10px;align-items:start}
.plan{display:flex;flex-direction:column;gap:10px}
.plan.best{border:2px solid var(--accent)}
.plan-price{font-size:1.8rem;font-weight:800;line-height:1.15}
.plan-price small{font-size:.85rem;font-weight:500;color:var(--muted)}
.plan .ticks{grid-template-columns:1fr;margin:0}
@media (max-width:820px){.plans{grid-template-columns:1fr}}
.plan .pill{align-self:flex-start}