/* YKS ad simulators — shared styles. Page chrome uses the marketing site's palette;
   the previews inside .phone/.desk use neutral, platform-like UI drawn from scratch
   (generic SVG icons, system fonts, no platform logos). */
:root{--bg:#0A0A0E;--surface:#191921;--surface2:#24242F;--raised:#32323F;--ink:#F5F6F8;--muted:#A7AAB8;--faint:#8B8F9E;
--line:rgba(255,255,255,.11);--line2:rgba(255,255,255,.055);--accent:#EDE9E1;--accent-deep:#FFFFFF;--good:#4ADE80;--warn:#F5A524;--bad:#F76C6C;
--disp:'Archivo',system-ui,-apple-system,'Segoe UI',sans-serif;--body:'Archivo',system-ui,-apple-system,'Segoe UI',sans-serif;--serif:'Fraunces',Georgia,serif;--mono:ui-monospace,'SF Mono',Menlo,monospace;
--ui:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:70px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
@media(min-width:900px){.wrap{padding:0 40px}}
h1,h2,h3{font-family:var(--disp);letter-spacing:-.03em;line-height:1.1;margin:0}
h1{font-size:38px;font-weight:800}
@media(min-width:720px){h1{font-size:54px}}
h2{font-size:30px;font-weight:800;margin-bottom:14px}
@media(min-width:720px){h2{font-size:40px}}
h3{font-size:21px;font-weight:700}
p{margin:0 0 14px}
.muted{color:var(--muted)}
.eyebrow{font-size:14px;color:var(--faint);margin:0 0 12px}
section{padding:56px 0;border-top:1px solid var(--line)}
@media(min-width:900px){section{padding:80px 0}}
.lede{font-size:18px;color:var(--muted);max-width:62ch;margin-top:18px}
@media(min-width:720px){.lede{font-size:20px}}
.small{font-size:15px;color:var(--muted)}
/* top bar + mobile menu */
.top{position:sticky;top:0;z-index:60;background:rgba(10,10,14,.92);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top .in{max-width:1120px;margin:0 auto;padding:0 20px;height:60px;display:flex;align-items:center;gap:14px}
@media(min-width:900px){.top .in{padding:0 40px}}
.top .home{font-weight:700;text-decoration:none;color:var(--ink);font-size:16px;min-height:44px;display:flex;align-items:center;white-space:nowrap}
.top nav{display:none;margin-left:auto;gap:4px;align-items:center}
.top nav a{color:var(--muted);text-decoration:none;font-size:15px;padding:0 10px;min-height:44px;display:flex;align-items:center;border-radius:6px;white-space:nowrap}
.top nav a:hover,.top nav a[aria-current]{color:var(--ink);background:var(--surface2)}
.top .wa{margin-left:auto;background:var(--accent-deep);color:#0A0A0E;font-weight:700;text-decoration:none;border-radius:6px;padding:0 16px;min-height:44px;display:flex;align-items:center;font-size:15px;white-space:nowrap}
.menubtn{min-width:44px;min-height:44px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:6px;font-size:15px;font-family:var(--body);padding:0 12px;cursor:pointer}
@media(min-width:1024px){.top nav{display:flex}.menubtn{display:none}.top .wa{margin-left:8px}}
.drawer{display:none;border-top:1px solid var(--line);background:var(--bg)}
.drawer.open{display:block}
.drawer a{display:flex;align-items:center;min-height:52px;padding:0 20px;border-bottom:1px solid var(--line2);color:var(--ink);text-decoration:none;font-size:17px}
@media(min-width:1024px){.drawer{display:none!important}}
/* buttons */
.btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 20px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none;font-weight:700;font-size:16px;font-family:var(--body);cursor:pointer}
.btn.p{background:var(--accent-deep);color:#0A0A0E;border-color:var(--accent-deep)}
.btn:disabled{opacity:.55;cursor:wait}
.mobar{position:fixed;left:0;right:0;bottom:0;z-index:55;display:flex;gap:8px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(10,10,14,.95);border-top:1px solid var(--line)}
.mobar a{flex:1;min-height:48px;display:flex;align-items:center;justify-content:center;text-decoration:none;border-radius:6px;font-weight:700;font-size:16px}
.mobar .w{background:var(--accent-deep);color:#0A0A0E}.mobar .c{border:1px solid var(--line);color:var(--ink);flex:0 0 40%}
body{padding-bottom:78px}
@media(min-width:1024px){.mobar{display:none}body{padding-bottom:0}}
/* hero */
.hero{padding:44px 0 40px}
@media(min-width:900px){.hero{padding:72px 0 56px}}
.crumbs{font-size:14px;color:var(--faint);margin-bottom:18px}
.crumbs a{color:var(--muted);display:inline-flex;min-height:44px;align-items:center}
.badge{display:inline-block;font-size:13px;border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--muted);margin:0 6px 6px 0}
.badge.warn{color:var(--warn);border-color:rgba(245,165,36,.4)}
.badge.good{color:var(--good);border-color:rgba(74,222,128,.4)}
/* simulator layout */
.sim{display:grid;grid-template-columns:1fr;gap:24px;align-items:start}
@media(min-width:768px){.sim{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
@media(min-width:1024px){.sim{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
@media(min-width:760px){.panel{padding:22px}}
.fld{margin-bottom:14px}
.fld label,.fld .lab{display:block;font-size:15px;color:var(--muted);margin-bottom:6px}
.fld input,.fld select,.fld textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--surface2);border:1px solid var(--line);border-radius:8px;padding:11px 12px;min-height:48px}
.fld textarea{min-height:88px;resize:vertical}
.fld .hint{font-size:14px;color:var(--faint);margin-top:6px;line-height:1.45}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{flex:1 1 auto;min-height:44px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface2);color:var(--muted);font:inherit;font-size:15px;cursor:pointer}
.seg button[aria-pressed=true]{background:var(--accent-deep);color:#0A0A0E;border-color:var(--accent-deep);font-weight:700}
.seg button:disabled{opacity:.45;cursor:not-allowed;text-decoration:line-through}
.pick{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
@media(min-width:768px) and (max-width:1023px){.pick{grid-template-columns:repeat(3,1fr)}}
.pick button{padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;background:#000;cursor:pointer;aspect-ratio:1;min-height:44px}
.pick button[aria-pressed=true]{border-color:var(--accent-deep)}
.pick img{width:100%;height:100%;object-fit:cover}
.pick .up{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px;background:var(--surface2);text-align:center;line-height:1.2;padding:4px}
.stage{position:sticky;top:76px}
@media(max-width:767px){.stage{position:static}}
.note{font-size:14px;color:var(--faint);margin-top:12px;line-height:1.5;text-align:center}
.tabs{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-bottom:14px}
/* results */
.res{margin-top:18px}
.kpis{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.kpi{background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:14px}
.kpi .l{font-size:14px;color:var(--faint)}
.kpi .v{font-family:var(--disp);font-weight:800;font-size:24px;letter-spacing:-.02em;margin-top:4px;line-height:1.15;font-variant-numeric:tabular-nums}
.kpi.main{border-color:rgba(255,255,255,.35)}
.kpi .d{font-size:14px;color:var(--muted);margin-top:4px;line-height:1.4}
.flag{margin-top:12px;border:1px solid rgba(245,165,36,.35);background:rgba(245,165,36,.07);border-radius:10px;padding:12px 14px;font-size:15px;color:var(--muted)}
.flag.ok{border-color:rgba(74,222,128,.3);background:rgba(74,222,128,.06)}
.est{font-size:14px;color:var(--faint);margin-top:10px;line-height:1.5}
/* cards + lists */
.grid2{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:640px){.grid2{grid-template-columns:1fr 1fr}}
.grid3{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:640px){.grid3{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.grid3{grid-template-columns:repeat(3,1fr)}}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink)}
a.card:hover{border-color:rgba(255,255,255,.3)}
.card p{color:var(--muted);font-size:16px;margin:8px 0 0}
.card .go{display:inline-block;margin-top:12px;font-weight:700;font-size:15px}
.links li{margin:0 0 10px}
.links a{color:var(--ink);text-underline-offset:3px}
ul.clean{list-style:none;margin:0;padding:0}
.srcs{font-size:15px;color:var(--muted)}
.srcs li{margin-bottom:8px;word-break:break-word}
.srcs a{color:var(--muted)}
details.faq{border-top:1px solid var(--line)}
details.faq:last-of-type{border-bottom:1px solid var(--line)}
details.faq summary{cursor:pointer;list-style:none;min-height:56px;display:flex;align-items:center;gap:12px;font-weight:700;font-size:18px;padding:10px 0}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";margin-left:auto;font-size:24px;color:var(--muted)}
details.faq[open] summary::after{content:"\2013"}
details.faq p{color:var(--muted);font-size:16px}
.tbl{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:12px}
.tbl table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px}
.tbl th,.tbl td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line2);vertical-align:top}
.tbl th{background:var(--surface2);font-size:14px;color:var(--muted)}
.tbl td:last-child{color:var(--ink)}
.tbl td:nth-child(2){color:var(--muted)}
.steps{display:grid;grid-template-columns:1fr;gap:12px;counter-reset:s}
@media(min-width:640px){.steps{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;counter-increment:s}
.steps li::before{content:"0" counter(s);font-family:var(--mono);color:var(--faint);font-size:14px;display:block;margin-bottom:6px}
.steps b{display:block;font-size:18px;margin-bottom:6px}
.steps span{color:var(--muted);font-size:16px}
.why{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;margin-top:22px}
.why h3{font-size:22px;margin-bottom:10px}
.why ul{margin:0;padding-left:20px;color:var(--muted)}
.why li{margin-bottom:8px}
.why li b{color:var(--ink)}
.proof{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:640px){.proof{grid-template-columns:repeat(3,1fr)}}
.proof .card b{display:block;font-family:var(--disp);font-size:26px;letter-spacing:-.02em}
footer.f{border-top:1px solid var(--line);padding:36px 0 44px;color:var(--faint);font-size:15px}
footer.f a{color:var(--muted);display:inline-flex;min-height:44px;align-items:center;margin-right:14px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ===================== PREVIEW FRAMES ===================== */
.phone{width:100%;max-width:340px;margin:0 auto;border-radius:44px;background:#0b0b0d;padding:10px;box-shadow:0 0 0 1px #2b2b31,0 30px 60px rgba(0,0,0,.55);position:relative}
.phone .scr{border-radius:34px;overflow:hidden;background:#fff;color:#111;position:relative;aspect-ratio:9/19.5;font-family:var(--ui);font-size:14px;line-height:1.35;display:flex;flex-direction:column}
.phone .scr.dark{background:#000;color:#fff}
.phone .island{position:absolute;top:18px;left:50%;transform:translateX(-50%);width:92px;height:26px;background:#000;border-radius:20px;z-index:9}
.sb{height:44px;flex:none;display:flex;align-items:flex-end;justify-content:space-between;padding:0 26px 6px;font-size:13px;font-weight:600;position:relative;z-index:8}
.sb .ic{display:flex;gap:5px;align-items:center}
.scr .body{flex:1;overflow:hidden;position:relative}
.desk{width:100%;border-radius:12px;overflow:hidden;background:#fff;color:#111;font-family:var(--ui);font-size:14px;line-height:1.45;box-shadow:0 0 0 1px #2b2b31,0 24px 50px rgba(0,0,0,.5)}
.desk .chrome{height:34px;background:#ececf0;display:flex;align-items:center;gap:6px;padding:0 12px}
.desk .chrome i{width:11px;height:11px;border-radius:50%;background:#ccc;display:block}
.desk .chrome .url{margin-left:12px;flex:1;height:20px;border-radius:6px;background:#fff;font-size:11px;color:#666;display:flex;align-items:center;padding:0 10px}
.svg{width:24px;height:24px;flex:none}
.av{width:32px;height:32px;border-radius:50%;flex:none;background:#ddd center/cover no-repeat;display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:13px;overflow:hidden}
.av img{width:100%;height:100%;object-fit:cover}
.media{width:100%;background:#111 center/cover no-repeat;position:relative;overflow:hidden}
.media img{width:100%;height:100%;object-fit:cover}
.r45{aspect-ratio:4/5}.r11{aspect-ratio:1/1}.r191{aspect-ratio:1.91/1}.r916{aspect-ratio:9/16}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
/* Instagram-like feed */
.ig .hd{display:flex;align-items:center;gap:9px;padding:9px 12px}
.ig .hd .nm{font-weight:600;font-size:13.5px}
.ig .hd .sp{font-size:12px;color:#555}
.ig .hd .more{margin-left:auto}
.ig .ctabar{display:flex;align-items:center;justify-content:space-between;padding:11px 12px;font-weight:600;font-size:14px;border-bottom:1px solid #efefef;color:#fff}
.ig .acts{display:flex;gap:14px;padding:10px 12px 4px;align-items:center}
.ig .acts .sv{margin-left:auto}
.ig .cap{padding:2px 12px 8px;font-size:13.5px}
.ig .cap b{font-weight:600}
.ig .likes{padding:0 12px;font-weight:600;font-size:13.5px}
.tabbar{height:50px;flex:none;border-top:1px solid #eee;display:flex;justify-content:space-around;align-items:center;background:inherit}
.dark .tabbar{border-top-color:#222}
/* full-screen vertical (story, reel, tiktok, snap) */
.vert{position:absolute;inset:0;background:#000}
.vert .media{position:absolute;inset:0;height:100%}
.vert .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.45) 0%,rgba(0,0,0,0) 22%,rgba(0,0,0,0) 55%,rgba(0,0,0,.7) 100%)}
.vert .tophd{position:absolute;left:12px;right:12px;top:54px;display:flex;align-items:center;gap:8px;color:#fff;z-index:3}
.vert .tophd .nm{font-weight:600;font-size:13.5px}
.vert .tophd .sp{font-size:12px;opacity:.85}
.prog{position:absolute;left:10px;right:10px;top:46px;display:flex;gap:3px;z-index:3}
.prog i{flex:1;height:2.5px;background:rgba(255,255,255,.4);border-radius:2px;display:block}
.prog i.on{background:#fff}
.vert .bot{position:absolute;left:12px;right:12px;bottom:14px;color:#fff;z-index:3}
.pillcta{display:flex;align-items:center;justify-content:center;gap:6px;margin:0 auto;background:#fff;color:#111;border-radius:22px;height:40px;padding:0 18px;font-weight:600;font-size:14px;width:max-content;max-width:100%}
.upchev{display:block;margin:0 auto 4px;color:#fff}
.side{position:absolute;right:8px;bottom:120px;display:flex;flex-direction:column;align-items:center;gap:16px;color:#fff;z-index:3;font-size:11.5px;font-weight:600;text-align:center}
.side .svg{width:30px;height:30px}
.reelcap{font-size:13px;margin-top:6px;max-width:78%}
.widecta{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.18);border-radius:8px;height:38px;padding:0 12px;font-weight:600;font-size:13.5px;margin-top:10px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
/* Facebook-like */
.fb{background:#fff}
.fb .hd{display:flex;gap:9px;padding:10px 12px;align-items:center}
.fb .hd .nm{font-weight:600;font-size:14px}
.fb .hd .sp{font-size:12px;color:#65676b;display:flex;align-items:center;gap:3px}
.fb .tx{padding:0 12px 10px;font-size:14px}
.fb .lk{display:flex;align-items:center;gap:10px;background:#f0f2f5;padding:10px 12px}
.fb .lk .dm{font-size:11.5px;color:#65676b;text-transform:uppercase;letter-spacing:.02em}
.fb .lk .hl{font-weight:600;font-size:14.5px;line-height:1.25}
.fb .lk .bt{margin-left:auto;background:#e2e5e9;border-radius:6px;padding:8px 12px;font-weight:600;font-size:13.5px;white-space:nowrap}
.fb .rx{display:flex;justify-content:space-between;color:#65676b;font-size:12.5px;padding:8px 12px;border-bottom:1px solid #e4e6eb}
.fb .ac{display:flex;justify-content:space-around;padding:6px 4px;color:#65676b;font-weight:600;font-size:13px}
.fb .ac span{display:flex;align-items:center;gap:5px}
/* LinkedIn-like */
.li{background:#f4f2ee}
.li .post{background:#fff;margin:8px 0}
.li .hd{display:flex;gap:9px;padding:12px 12px 6px}
.li .av{border-radius:4px;width:44px;height:44px}
.li .nm{font-weight:600;font-size:14px}
.li .sub{font-size:12px;color:#666;line-height:1.3}
.li .tx{padding:4px 12px 10px;font-size:14px;color:#222}
.li .tx .more{color:#666}
.li .strip{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#eef3f8}
.li .strip .hl{font-weight:600;font-size:14px;line-height:1.3}
.li .strip .dm{font-size:12px;color:#666}
.li .strip .bt{margin-left:auto;border:1.5px solid #0a66c2;color:#0a66c2;border-radius:18px;padding:5px 14px;font-weight:600;font-size:13.5px;white-space:nowrap}
.li .ac{display:flex;justify-content:space-around;padding:8px 4px;color:#555;font-weight:600;font-size:12.5px;border-top:1px solid #e8e8e8}
.li .ac span{display:flex;flex-direction:column;align-items:center;gap:2px}
.li .msg{background:#fff;height:100%}
.li .msg .bar{display:flex;align-items:center;gap:10px;padding:10px 12px;border-bottom:1px solid #e8e8e8}
.li .bubble{margin:12px;background:#f3f6f8;border-radius:12px;padding:12px;font-size:14px}
.li .msgbtns{display:flex;flex-direction:column;gap:8px;margin:0 12px}
.li .msgbtns span{border:1.5px solid #0a66c2;color:#0a66c2;border-radius:18px;padding:8px;text-align:center;font-weight:600;font-size:14px}
/* TikTok-like */
.tt .topnav{position:absolute;top:50px;left:0;right:0;display:flex;justify-content:center;gap:18px;color:#fff;font-weight:600;font-size:15px;z-index:3}
.tt .topnav .dim{opacity:.6}
.tt .avwrap{position:relative;margin-bottom:6px}
.tt .avwrap .av{width:44px;height:44px;border:2px solid #fff}
.tt .plus{position:absolute;bottom:-8px;left:50%;transform:translateX(-50%);width:20px;height:20px;border-radius:50%;background:#fe2c55;color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1}
.tt .handle{font-weight:700;font-size:15px}
.tt .spons{display:inline-block;font-size:11.5px;background:rgba(255,255,255,.25);border-radius:3px;padding:1px 5px;margin-left:6px;font-weight:600;vertical-align:2px}
.tt .ttcta{display:flex;align-items:center;justify-content:space-between;background:#fe2c55;border-radius:4px;height:38px;padding:0 12px;font-weight:600;font-size:14px;margin-top:10px;max-width:80%}
.tt .ttcta.grey{background:rgba(255,255,255,.22)}
.tt .nav{position:absolute;left:0;right:0;bottom:0;height:52px;background:#000;display:flex;justify-content:space-around;align-items:center;color:#fff;font-size:10.5px;z-index:4}
.tt .nav .mid{width:44px;height:28px;border-radius:8px;background:#fff;color:#000;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;box-shadow:-3px 0 0 #25f4ee,3px 0 0 #fe2c55}
.topview .count{position:absolute;top:54px;right:12px;background:rgba(0,0,0,.5);color:#fff;border-radius:14px;font-size:12px;padding:3px 10px;z-index:4}
/* Snapchat-like */
.snap .tophd .av{width:34px;height:34px;border-radius:10px}
.snap .adlbl{font-size:12px;opacity:.9}
.snap .attach{display:flex;align-items:center;gap:10px;background:#fff;color:#111;border-radius:14px;padding:8px 10px;margin-top:10px}
.snap .attach .av{width:38px;height:38px;border-radius:10px}
.snap .attach .t{font-weight:700;font-size:13.5px;line-height:1.2}
.snap .attach .s{font-size:12px;color:#555}
.snap .attach .bt{margin-left:auto;background:#fffc00;color:#111;border-radius:16px;padding:7px 12px;font-weight:700;font-size:13px;white-space:nowrap}
.snap .disc{position:absolute;inset:0;background:#fff;color:#111;padding:54px 10px 0}
.snap .disc h4{margin:4px 2px 10px;font-size:20px;font-weight:800}
.snap .tiles{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.snap .tile{position:relative;border-radius:10px;overflow:hidden;aspect-ratio:9/15;background:#ddd}
.snap .tile img{width:100%;height:100%;object-fit:cover}
.snap .tile .lbl{position:absolute;left:6px;right:6px;bottom:6px;color:#fff;font-weight:800;font-size:13px;line-height:1.15;text-shadow:0 1px 3px rgba(0,0,0,.6)}
.snap .tile .ad{position:absolute;top:6px;left:6px;background:rgba(0,0,0,.55);color:#fff;font-size:10.5px;font-weight:700;border-radius:4px;padding:1px 5px}
.snap .tile.ph{background:linear-gradient(160deg,#cfd3da,#9aa1ad)}
/* ChatGPT-like */
.cg{background:#fff;color:#0d0d0d;height:100%;display:flex;flex-direction:column}
.cg .bar{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;font-weight:600;font-size:15px}
.cg .thread{flex:1;overflow:hidden;padding:4px 14px}
.cg .u{margin-left:auto;max-width:80%;background:#f4f4f4;border-radius:18px;padding:9px 14px;font-size:14px;width:max-content}
.cg .a{margin-top:14px;font-size:14px;line-height:1.55}
.cg .a p{margin:0 0 8px}
.cg .tools{display:flex;gap:12px;color:#8f8f8f;margin:4px 0 12px}
.cg .tools .svg{width:17px;height:17px}
.cg .ad{border:1px solid #e5e5e5;border-radius:16px;overflow:hidden}
.cg .ad .lbl{font-size:11.5px;color:#8f8f8f;padding:8px 12px 0;display:flex;align-items:center;gap:5px}
.cg .ad .in{display:flex;gap:10px;padding:8px 12px 12px}
.cg .ad .th{width:72px;height:72px;border-radius:10px;overflow:hidden;flex:none;background:#eee}
.cg .ad .th img{width:100%;height:100%;object-fit:cover}
.cg .ad .who{display:flex;align-items:center;gap:6px;font-size:12.5px;color:#5d5d5d}
.cg .ad .fav{width:16px;height:16px;border-radius:4px;flex:none;overflow:hidden;display:flex;align-items:center;justify-content:center;color:#fff;font-size:9px;font-weight:700}
.cg .ad .ti{font-weight:600;font-size:14px;margin:2px 0}
.cg .ad .ds{font-size:13px;color:#5d5d5d}
.cg .composer{margin:8px 12px 12px;border:1px solid #e5e5e5;border-radius:24px;height:46px;display:flex;align-items:center;padding:0 14px;color:#8f8f8f;font-size:14px;gap:8px}
.cg .composer .send{margin-left:auto;width:30px;height:30px;border-radius:50%;background:#0d0d0d;color:#fff;display:flex;align-items:center;justify-content:center}
/* Perplexity-like */
.px{background:#fcfcf9;color:#13343b;height:100%;display:flex;flex-direction:column;font-size:14px}
.px .q{font-size:19px;font-weight:600;padding:8px 14px 6px;color:#13343b;line-height:1.3}
.px .srcrow{display:flex;gap:6px;padding:4px 14px 8px;overflow:hidden}
.px .srcrow span{flex:none;background:#f0efea;border-radius:8px;padding:6px 8px;font-size:11.5px;color:#555;max-width:110px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.px .ans{padding:0 14px;line-height:1.55;flex:1;overflow:hidden}
.px .ans p{margin:0 0 8px}
.px .rel{border-top:1px solid #e8e6df;margin:6px 14px 0;padding-top:8px}
.px .rel .h{font-weight:600;font-size:14px;margin-bottom:4px;display:flex;align-items:center;gap:6px}
.px .rel .it{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 0;border-bottom:1px solid #efede6;font-size:13.5px}
.px .rel .it.sp{color:#13343b}
.px .rel .tag{font-size:11px;color:#6b6b6b;border:1px solid #d9d7cf;border-radius:4px;padding:0 5px;margin-left:6px}
.px .ask{margin:8px 12px 12px;border:1px solid #e3e1d9;border-radius:22px;height:44px;display:flex;align-items:center;padding:0 14px;color:#8a8a8a}
.retired{position:absolute;top:4px;left:50%;transform:translateX(-50%);background:#13343b;color:#fff;font-size:11.5px;font-weight:600;border-radius:999px;padding:4px 10px;z-index:5;white-space:nowrap}
/* brand AI tool */
.ai-out{display:none;margin-top:26px}
.ai-out.on{display:block}
.ai-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:640px){.ai-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.ai-grid{grid-template-columns:repeat(3,1fr)}}
.ai-grid figure{margin:0}
.ai-grid figcaption{text-align:center;font-size:15px;color:var(--muted);margin-top:10px}
.ai-grid .phone{max-width:300px}
.status{font-size:15px;color:var(--muted);margin-top:12px;min-height:22px}
.status.err{color:var(--warn)}
.prof{display:flex;align-items:center;gap:12px;background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:12px}
.prof .av{width:48px;height:48px}
.prof .t{font-weight:700}
.prof .s{font-size:14px;color:var(--muted)}
.lead{margin-top:28px}
.lead form{margin-top:12px}
.ok{color:var(--good)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* Page gutters (one source of truth). Phones: clamp(20px,5vw,32px); tablets 32px; desktop 40px.
   Never smaller than the iOS safe-area inset (viewport-fit=cover). !important so component
   rules that set vertical padding with the shorthand (e.g. .hero{padding:44px 0}) can't zero it. */
:root{--gx:clamp(20px,5vw,32px)}
@media(min-width:768px){:root{--gx:32px}}
@media(min-width:900px){:root{--gx:40px}}
:root{--gl:max(var(--gx),env(safe-area-inset-left,0px));--gr:max(var(--gx),env(safe-area-inset-right,0px))}
.wrap,.top .in{padding-left:var(--gl)!important;padding-right:var(--gr)!important}
.mobar{padding-left:var(--gl);padding-right:var(--gr)}
.drawer a{padding-left:var(--gl);padding-right:var(--gr)}
/* Small phones (360-399px): keep brand + WhatsApp + Menu on one line inside the gutters */
@media(max-width:399px){.top .in{gap:8px}.top .home{font-size:15px}.top .wa{padding:0 12px;font-size:14px}.menubtn{padding:0 10px;font-size:14px}}
@media(max-width:339px){.top .home{font-size:14px;letter-spacing:-.01em}}
/* Grid tracks must not grow past the gutter on narrow phones (a wide preview row pushed .stage to 340px at 360) */
@media(max-width:767px){.sim{grid-template-columns:minmax(0,1fr)}}.sim>*{min-width:0}