:root{--ink:#0f172a;--mut:#64748b;--line:#e5e7eb;--bg:#f6f7fb;--card:#fff;--pri:#5b5bf7;--pri2:#8b5cf6;--ok:#16a34a;--err:#dc2626}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--pri)}
code{background:#eef2ff;color:#4338ca;padding:1px 5px;border-radius:5px;font-size:12px}
.hero{background:radial-gradient(1200px 400px at 20% -10%,#c7d2fe 0,transparent 60%),radial-gradient(900px 400px at 90% 0,#f5d0fe 0,transparent 55%),#fff;border-bottom:1px solid var(--line);padding:28px 20px 34px;text-align:center}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px}
.logo{width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,#5b5bf7,#9b5cf6);display:grid;place-items:center;color:#fff}
h1{font-size:clamp(26px,4vw,42px);line-height:1.1;margin:18px auto 10px;max-width:820px;letter-spacing:-.02em}
h1 span{background:linear-gradient(90deg,var(--pri),var(--pri2));-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{color:var(--mut);max-width:660px;margin:0 auto;font-size:16px;line-height:1.55}
.pills{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:16px}
.pill{font-size:12px;font-weight:600;padding:6px 10px;border-radius:99px;background:#fff;border:1px solid var(--line);color:#334155}
.wrap{max-width:1320px;margin:0 auto;padding:22px 16px 40px;display:grid;grid-template-columns:400px minmax(0,1fr);gap:20px;align-items:start}
@media(max-width:980px){.wrap{grid-template-columns:minmax(0,1fr)}.stage{position:static!important}}
.wrap>div{min-width:0}

.panel{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;margin-bottom:16px;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.step{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;margin-bottom:14px}
.num{width:24px;height:24px;border-radius:50%;background:var(--ink);color:#fff;font-size:12px;display:grid;place-items:center;flex:none}
.tabs{display:grid;grid-template-columns:1fr 1fr;background:#f1f5f9;border-radius:10px;padding:4px;margin-bottom:12px}
.tab{border:0;background:none;padding:9px;border-radius:8px;font:600 13px Inter,sans-serif;color:var(--mut);cursor:pointer}
.tab.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
label.l{display:block;font-size:12px;font-weight:600;color:#334155;margin:10px 0 6px}
textarea,input[type=text],input[type=password],select{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font:14px Inter,sans-serif;color:var(--ink);background:#fff;outline:none;transition:border .2s,box-shadow .2s}
textarea:focus,input:focus,select:focus{border-color:var(--pri);box-shadow:0 0 0 3px rgba(91,91,247,.15)}
textarea{min-height:130px;resize:vertical;font-size:13px;line-height:1.5}
.hint{font-size:12px;color:var(--mut);line-height:1.5;margin-top:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:11px 16px;font:600 14px Inter,sans-serif;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s;white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.6;cursor:wait}
.bp{background:linear-gradient(135deg,var(--pri),var(--pri2));color:#fff;box-shadow:0 6px 16px rgba(91,91,247,.3)}
.bg{background:#f1f5f9;color:var(--ink)}
.row{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.row .btn{flex:1}
.status{font-size:13px;margin-top:12px;line-height:1.55;color:#334155}
.status.ok{color:var(--ok)}.status.err{color:var(--err)}
.status .skip{color:var(--err)}
details{margin-top:10px;font-size:13px;color:#334155;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:10px 12px}
summary{cursor:pointer;font-weight:600}
details ol{padding-left:18px;margin:8px 0 0;line-height:1.65}
.layouts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.lay{border:1.5px solid var(--line);background:#fff;border-radius:12px;padding:10px 6px;cursor:pointer;text-align:center;font:600 12px Inter,sans-serif;color:#334155;transition:all .2s}
.lay:hover{border-color:#c7d2fe}
.lay svg{width:100%;height:38px;display:block;margin-bottom:6px;color:#94a3b8}
.lay.on{border-color:var(--pri);background:#eef2ff;color:#4338ca}
.lay.on svg{color:var(--pri)}
.ctl{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:4px 12px}
.panel,.frame,.canvas,#pv{min-width:0;max-width:100%}
.ctl>div,.rng{min-width:0}
.rng input{min-width:0;width:100%}
.ctl .full{grid-column:1/-1}
.rng{display:flex;align-items:center;gap:10px}
.rng input{flex:1;accent-color:var(--pri)}
.rng b{font-size:12px;min-width:30px;text-align:right;color:var(--mut)}
.tg{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;padding:8px 0;border-top:1px dashed var(--line)}
.sw{position:relative;width:38px;height:22px;flex:none}
.sw input{opacity:0;width:0;height:0;position:absolute}
.sw span{position:absolute;inset:0;background:#cbd5e1;border-radius:99px;transition:.2s;cursor:pointer}
.sw span:before{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.sw input:checked+span{background:var(--pri)}
.sw input:checked+span:before{transform:translateX(16px)}
input[type=color]{width:100%;height:38px;border:1px solid var(--line);border-radius:10px;padding:3px;background:#fff;cursor:pointer}
input[type=color]:disabled{opacity:.4;cursor:not-allowed}
.stage{position:sticky;top:16px}
.ph{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.dev{display:flex;background:#f1f5f9;border-radius:10px;padding:4px}
.pvh{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--mut);margin-left:auto}
.pvh select{width:auto;padding:6px 8px;font-size:12px;border-radius:8px}
.lay{position:relative}
.albmode .lay[data-l=slideshow]:after,.albmode .lay[data-l=kenburns]:after{content:"Best for albums";position:absolute;top:-8px;left:50%;transform:translateX(-50%);white-space:nowrap;background:#16a34a;color:#fff;font-size:9.5px;font-weight:700;padding:2px 7px;border-radius:99px}
.albmode{padding-top:6px}
.dev button{border:0;background:none;padding:7px 12px;border-radius:8px;font:600 12px Inter,sans-serif;color:#475569;cursor:pointer}
.dev button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.canvas{background:repeating-conic-gradient(#f8fafc 0 25%,#eef1f6 0 50%) 0 0/20px 20px;border:1px solid var(--line);border-radius:14px;padding:18px;min-height:340px;overflow:hidden}
.frame{margin:0 auto;transition:max-width .35s ease;max-width:100%;background:#fff;border-radius:10px;padding:14px;box-shadow:0 10px 30px rgba(15,23,42,.08)}
.code{width:100%;min-height:150px;font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:#0f172a;color:#c7d2fe;border:0;border-radius:12px;padding:14px}
.howto{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;margin-top:14px}
.how{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:12px;font-size:13px;line-height:1.55;color:#334155}
.how b{display:block;margin-bottom:4px;color:var(--ink)}
.empty{padding:50px 20px;text-align:center;color:var(--mut);font-size:14px}
.foot{text-align:center;color:var(--mut);font-size:13px;padding:0 16px 40px}
.foot a{text-decoration:none;font-weight:600}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;font-size:14px;opacity:0;transition:.3s;pointer-events:none;z-index:99}
.toast.on{opacity:1;transform:translateX(-50%)}
.hide{display:none!important}
.chk{display:flex;align-items:center;gap:8px;font-size:13px;margin-top:10px;color:#334155;cursor:pointer}
.chk input{accent-color:var(--pri)}
.savebox{margin-top:14px;padding:14px;border:1px solid var(--line);border-radius:12px;background:#f8fafc}
.savebox .row{margin-top:8px;flex-wrap:nowrap}.savebox .row input{flex:1;min-width:0;width:auto}.savebox .row .btn{flex:none}
.sb-h{display:flex;flex-direction:column;gap:2px;font-size:14px}
.elink{display:flex;gap:8px;margin-top:8px}.elink input{flex:1;min-width:0;font-size:12px}
@media(max-width:640px){.savebox .row{flex-wrap:wrap}.savebox .row .btn{flex:1}}
.sw input:focus-visible+span{outline:3px solid var(--pri);outline-offset:2px}
select:focus-visible,button:focus-visible,.lay:focus-visible,input[type=range]:focus-visible{outline:3px solid var(--pri);outline-offset:2px}
.albbox{margin-top:14px;padding:14px;border:1.5px solid #c7d2fe;background:#f5f7ff;border-radius:12px}
.albbox .tg>span{flex:1}
.warn{font-size:12px;color:#92400e;background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:8px 10px;margin-top:8px;line-height:1.5}
html{-webkit-text-size-adjust:100%}
button,.lay,.tab,label.sw,.chk,select,input[type=range],input[type=color]{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.btn,.lay,.dev button{transition:transform .12s ease,box-shadow .2s,background .2s,border-color .15s}
.lay:active{transform:scale(.96)}
.mbar{display:none}
@media(max-width:980px){
 .wrap{display:flex;flex-direction:column;align-items:stretch;gap:0;padding:14px 12px 96px}
 .panel{width:100%}
 .wrap>div{display:contents}
 .panel{margin-bottom:12px;padding:16px 14px;border-radius:14px}
 .p-add{order:1}.p-prev{order:2}.p-lay{order:3}.p-sty{order:4}.p-code{order:5}
 .num:before{content:attr(data-m)}
}
@media(min-width:981px){.num:before{content:attr(data-d)}}
@media(max-width:640px){
 .hero{padding:20px 14px 22px}
 h1{font-size:25px;margin:12px auto 8px}
 .sub{font-size:14.5px}
 .pills{gap:6px;margin-top:12px}.pill{font-size:11px;padding:5px 9px}
 textarea,input[type=text],select{font-size:16px}
 textarea{min-height:110px}
 .btn{min-height:46px}
 .dev{display:none}
 .canvas{padding:8px;min-height:220px;border-radius:12px}
 .frame{padding:8px;border-radius:8px}
 .code{min-height:110px;max-height:160px;font-size:11px}
 .howto{grid-template-columns:1fr}
 .ctl{gap:2px 10px}
 .tg{padding:10px 0}
 .rng input{height:28px}
 .ph .row .btn{flex:1}
 .ph{gap:8px}
 .mbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line)}
 .mbar .btn{flex:1;min-height:46px}
 .toast{bottom:calc(84px + env(safe-area-inset-bottom))}
 .foot{padding-bottom:100px}
}