/* album.com.vn: trang chủ (giới thiệu, ô nhập mã album, bảng giá). Same visual system as guest.css. */

:root{
  --bg:#E7EEF4; --surface:#FFFFFF; --surface-2:#E8EDF6; --ink:#131B2E; --ink-2:#47536A; --ink-3:#4E5A6F; --line:#BFCCE0;
  --brand:#2456C8; --brand-hover:#1C45A3; --brand-ink:#FFFFFF; --brand-soft:#DCE6FA;
  --bad:#B3261E; --bad-soft:#FBE5E2; --info:#6B3FB8; --info-soft:#ECE4F8; --ok:#1B7A45; --ok-soft:#DCF1E4;
  --shadow:0 1px 2px rgba(10,16,32,.06),0 8px 28px rgba(10,16,32,.08);
  --f-display:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --r:10px; --r-lg:16px;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#0D1220; --surface:#141B2C; --surface-2:#1C2438; --ink:#E4E9F3; --ink-2:#A8B3C7; --ink-3:#94A0B6; --line:#29324A;
  --brand:#6E9BFF; --brand-hover:#8DB2FF; --brand-ink:#0A1838; --brand-soft:#1A2A50;
  --bad:#F28B7F; --bad-soft:#3A1815; --info:#B79CF0; --info-soft:#2A1F45; --ok:#62CF93; --ok-soft:#14301F;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 28px rgba(0,0,0,.35);
  color-scheme:dark;
}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.5;overflow-x:hidden}
h1,h2,h3,p,ol{margin:0}
a{color:inherit}
svg{display:block}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:#79A3D3;color:#0D1A33}
input{caret-color:var(--brand)}
.mono{font-family:var(--f-mono);font-size:.9em;letter-spacing:-.01em;word-break:break-all}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
@media (min-width:700px){.wrap{padding-left:28px;padding-right:28px}}

/* controls */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 18px;border-radius:var(--r);border:1px solid var(--line);background:var(--surface);font-weight:600;font-size:15px;text-decoration:none;white-space:nowrap;cursor:pointer}
.btn:hover{background:var(--surface-2)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{background:var(--brand-hover);border-color:var(--brand-hover)}
.btn-ghost{background:transparent;min-height:40px;padding:0 14px;font-size:14px}
.inp{height:46px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:0 12px;width:100%;min-width:0;font-size:16px}
.inp:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px var(--brand-soft)}
.inp[aria-invalid="true"]{border-color:var(--bad)}

/* header */
.top{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:16px;height:60px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-family:var(--f-display);font-size:18px;letter-spacing:-.015em;margin-right:auto;min-width:0}
.brand svg{width:26px;height:26px;color:var(--brand);flex:none}
.wm{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.wm b{font-weight:700}
.nav{display:none;gap:22px;font-size:14px;font-weight:500;color:var(--ink-2)}
.nav a{text-decoration:none}
.nav a:hover{color:var(--ink)}
@media (min-width:860px){.nav{display:flex}}
/* Title bar in the colours of Yahoo! Messenger (#79A3D3, edge #869FC5); dark text: white would only reach 2.6:1. */
@media not all and (prefers-color-scheme: dark){
  .top{background:#79A3D3;backdrop-filter:none;-webkit-backdrop-filter:none;border-bottom-color:#869FC5}
  .top .brand{color:#131B2E}
  .top .brand svg{color:#1C2E52}
  .top .nav{color:#1C2E52}
  .top .nav a:hover{color:#131B2E}
  .top .btn{background:var(--surface);border-color:#869FC5}
}

/* hero */
.hero{padding:28px 0 36px}
.hero-in{display:grid;gap:24px}
h1{font-family:var(--f-display);font-weight:700;font-size:clamp(30px,6.2vw,54px);line-height:1.14;letter-spacing:-.022em}
.lead{color:var(--ink-2);font-size:17px;margin-top:12px;max-width:62ch}
.hero .lead{margin-top:14px}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-note{margin-top:12px;font-size:14px;color:var(--ink-3);max-width:62ch}
@media (min-width:960px){
  .hero{padding:56px 0 48px}
  .hero-in{grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);align-items:end;gap:64px}
  .hero .code{margin-bottom:6px}
}

/* code card */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow)}
.code{position:relative;z-index:2;padding:20px}
.code h2{font-family:var(--f-display);font-size:20px;font-weight:700;letter-spacing:-.01em;margin-bottom:12px}
.code label{display:block;font-size:14px;font-weight:500;color:var(--ink-2);margin-bottom:8px}
.row{display:flex;gap:8px}
.row .btn{flex:none}
.err{font-size:13.5px;color:var(--bad);font-weight:500;margin-top:8px}
.err:empty{display:none}
.hint{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.5}
.hint b{color:var(--ink-2);font-weight:600}
.hint .mono{word-break:normal}
.hint .mono b{white-space:nowrap}
@media (max-width:420px){.row{flex-direction:column}.row .btn{width:100%}}

/* sections */
.sec{padding:40px 0}
.sec.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.h2{font-family:var(--f-display);font-weight:700;font-size:clamp(20px,5.9vw,34px);line-height:1.2;letter-spacing:-.02em}
@media (min-width:960px){.sec{padding:64px 0}}

/* features: three rows next to what the product really outputs, then a plain list */
.feat-sec .h2{margin-bottom:4px}
.frow2{display:grid;gap:16px;padding:28px 0;border-bottom:1px solid var(--line)}
.ftext h3{font-size:18px;font-weight:700;letter-spacing:-.012em;line-height:1.3}
.ftext p{color:var(--ink-2);margin-top:8px;max-width:62ch}
.fshot{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 1px 2px rgba(10,16,32,.05),0 12px 30px -18px rgba(10,16,32,.25)}
@media (min-width:860px){
  .frow2{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:center;padding:40px 0}
  .ftext h3{font-size:21px}
  .frow2.flip .ftext{order:2}
}
.note-card{padding:18px 18px 16px;max-width:460px}
.nc-h{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.nc-h b{font-size:16px}
.nc-h .mono{font-size:12.5px;color:var(--ink-3)}
.nc-ta{margin-top:12px;min-height:84px;padding:10px 12px;border:1px solid var(--brand);border-radius:10px;box-shadow:0 0 0 3px var(--brand-soft);font-size:15px}
.nc-meta{display:flex;justify-content:space-between;margin-top:6px;font-size:12.5px;color:var(--ink-3)}
.nc-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.nc-chips span{padding:6px 11px;border:1px solid var(--line);border-radius:99px;font-size:13px;color:var(--ink-2);background:var(--surface)}
.xq-card{padding:16px 18px 18px;max-width:520px}
.xq-l{display:block;font-size:13px;font-weight:600;color:var(--ink-2)}
.xq-card code{display:block;margin-top:8px;padding:10px 12px;border-radius:8px;background:var(--surface-2);font-size:13px;line-height:1.6;word-break:break-word}
.xq-r{display:flex;align-items:center;gap:12px;margin-top:12px;font-size:13.5px;color:var(--ink-2)}
.xbtn{flex:none;display:inline-flex;align-items:center;height:34px;padding:0 13px;border-radius:9px;background:var(--brand);color:var(--brand-ink);font-weight:600;font-size:13px}
.rep-card{padding:6px 0;max-width:520px;overflow-x:auto}
.rep-card table{width:100%;border-collapse:collapse;font-size:13.5px}
.rep-card th{padding:8px 14px;text-align:left;font-size:12px;font-weight:600;color:var(--ink-3);border-bottom:1px solid var(--line)}
.rep-card td{padding:9px 14px;border-bottom:1px solid var(--surface-2);vertical-align:top}
.rep-card tr:last-child td{border-bottom:0}
.rep-card td.mono{white-space:nowrap;font-size:12.5px}
.rep-card td.num{color:var(--ink-3);font-variant-numeric:tabular-nums;width:1%}
.rep-card .tg{display:inline-block;margin-right:4px;padding:1px 8px;border-radius:99px;background:var(--info-soft);color:var(--info);font-size:11.5px;font-weight:600;white-space:nowrap}
.rep-card .tg.red{background:var(--bad-soft);color:var(--bad)}
.more-h{margin-top:28px;font-size:17px;font-weight:700}
.more{margin:10px 0 0;padding:0;list-style:none;display:grid;gap:6px 40px;color:var(--ink-2);font-size:15px}
.more li{position:relative;padding-left:18px}
.more li::before{content:"";position:absolute;left:2px;top:.62em;width:6px;height:6px;border-radius:50%;background:#79A3D3}
@media (min-width:760px){.more{grid-template-columns:1fr 1fr}}

/* pricing: the plans as configured, no "most popular" theatre */
.plans{display:grid;gap:12px;margin-top:20px}
@media (min-width:760px){.plans{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}}
.plan{display:flex;flex-direction:column;gap:4px;padding:18px 18px 16px;border:1px solid var(--line);border-radius:14px;background:var(--bg)}
.plan h3{font-size:17px;font-weight:700}
.price{display:flex;align-items:baseline;gap:4px;margin-top:4px}
.price b{font-size:28px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.price b.ask{font-size:22px}
.price span{color:var(--ink-3);font-size:14px}
.price-y{font-size:14px;color:var(--ink-2)}
.plan ul{margin:8px 0 0;padding:0;list-style:none;display:grid;gap:3px;font-size:14.5px;color:var(--ink-2)}
.plan li{padding-left:16px;position:relative}
.plan li::before{content:"";position:absolute;left:1px;top:.6em;width:6px;height:6px;border-radius:50%;background:#79A3D3}
.plan-note{font-size:13.5px;color:var(--ink-3);margin-top:6px}
.plan .btn{margin-top:auto;align-self:flex-start}
.plan ul+.btn,.plan-note+.btn{margin-top:14px}

/* FAQ: plain questions and answers, nothing to open or close */
.faq{display:grid;gap:16px 48px;margin:18px 0 0}
.faq dt{font-weight:600;font-size:16.5px}
.faq dd{margin:4px 0 0;color:var(--ink-2)}
@media (min-width:860px){.faq{grid-template-columns:1fr 1fr}}

/* ───── Hướng dẫn sử dụng (animated walkthrough) ───── */
.g-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-top:18px}
.g-tabs{display:inline-flex;padding:4px;border-radius:12px;background:var(--surface-2)}
.g-tabs [role=tab]{height:40px;padding:0 16px;border:0;border-radius:9px;background:transparent;color:var(--ink-2);font-weight:600;font-size:14.5px;cursor:pointer}
.g-tabs [aria-selected=true]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px rgba(10,16,32,.12)}
.g-play{display:none;align-items:center;gap:7px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font-size:14px;font-weight:600;cursor:pointer}
.g-play svg{width:15px;height:15px}
.g-play .i-play,.g-play.is-paused .i-pause{display:none}
.g-play.is-paused .i-play{display:block}
.guide.run .g-play{display:inline-flex}
.g-panel{display:grid;gap:18px;margin-top:18px}
.g-panel[hidden]{display:none}
@media (min-width:960px){.g-panel{grid-template-columns:minmax(300px,380px) 1fr;gap:48px;align-items:start}}

/* Every step is a card with a chevron, so it reads as something to tap; the current one is open and outlined in blue. */
.g-steps{list-style:none;padding:0;display:grid;gap:6px}
.g-step{position:relative;display:grid;grid-template-columns:32px 1fr;gap:12px;width:100%;padding:12px 14px 14px;border:1px solid var(--line);border-radius:14px;background:var(--surface);text-align:left;cursor:pointer;overflow:hidden;transition:border-color .15s,box-shadow .15s}
.g-step:hover{border-color:var(--brand)}
.g-step[aria-current]{border-color:var(--brand);box-shadow:var(--shadow)}
.g-n{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;border:1.5px solid var(--line);background:var(--surface);color:var(--ink-2);font-family:var(--f-display);font-weight:700;font-size:14px;transition:background .2s,color .2s,border-color .2s}
.g-step[aria-current] .g-n{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.g-go{display:none;position:absolute;top:17px;right:12px;color:var(--ink-3)}
.g-go svg{width:18px;height:18px;transition:transform .2s}
.guide.run .g-go{display:block}
.guide.run .g-h{padding-right:24px}
.guide.run .g-step[aria-current] .g-go svg{transform:rotate(90deg)}
.g-h{display:block;font-size:16px;font-weight:600;line-height:1.35;padding-top:3px}
.g-d{display:block;color:var(--ink-2);font-size:14.5px;margin-top:4px}
.guide.run .g-step:not([aria-current]) .g-d{display:none}
.guide.run .g-step[aria-current] .g-d{animation:g-fade .35s ease}
.g-bar{position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px;overflow:hidden}
.g-bar span{display:block;height:100%;width:0;background:var(--brand)}
.g-step:not([aria-current]) .g-bar span{width:0!important;transition:none!important}
@keyframes g-fade{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:none}}

.g-stage{position:relative;height:600px}
.guide:not(.run) .g-stage{overflow:hidden}
#gp-studio .g-stage{height:430px}
@media (max-width:959px){.g-stage{order:-1}}
.dev{position:absolute;top:0;left:50%;transform:translateX(-50%) scale(var(--s,1));transform-origin:top center;font-size:13px;line-height:1.4;color:var(--ink);text-align:left}
.dev .mono{word-break:normal}
.scr{position:relative;overflow:hidden;background:var(--bg)}

/* phone */
.phone{width:290px;height:600px;padding:10px;border-radius:46px;background:#0F131C;box-shadow:0 30px 60px -22px rgba(10,16,32,.5),inset 0 0 0 1.5px #2C3446}
.phone .scr{height:100%;border-radius:36px}
.phone .scr::before{content:"";position:absolute;top:8px;left:50%;width:84px;height:24px;margin-left:-42px;border-radius:14px;background:#0F131C;z-index:6}
.sbar{position:relative;z-index:5;display:flex;justify-content:space-between;align-items:center;height:36px;padding:4px 24px 0;font-size:12px}
.sbar span{display:flex;gap:2px;align-items:flex-end}
.sbar span i{display:block;width:3px;background:var(--ink);border-radius:1px}
.sbar span i:nth-child(1){height:5px}.sbar span i:nth-child(2){height:8px}.sbar span i:nth-child(3){height:11px}

.scene{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .35s,visibility 0s .35s}
.phone .scene{top:36px}
.scene.is-on{opacity:1;visibility:visible;transition:opacity .35s}

/* finger / cursor */
.finger{position:absolute;left:0;top:0;z-index:20;width:36px;height:36px;margin:-18px 0 0 -18px;border-radius:50%;background:rgba(19,27,46,.2);border:2px solid rgba(255,255,255,.95);box-shadow:0 4px 14px rgba(0,0,0,.28);opacity:0;pointer-events:none;transition:transform .45s cubic-bezier(.3,.7,.2,1),opacity .25s,scale .15s}
.finger.show{opacity:1}
.finger.press{scale:.8}
.finger::after{content:"";position:absolute;inset:-2px;border-radius:50%;border:2px solid var(--brand);opacity:0}
.finger.press::after{animation:g-ripple .5s ease-out}
.finger.cursor{width:22px;height:22px;margin:-3px 0 0 -5px;border:0;border-radius:0;background:none;box-shadow:none;filter:drop-shadow(0 2px 3px rgba(0,0,0,.3))}
.finger.cursor svg{width:22px;height:22px}
.finger.cursor::after{inset:auto;left:-9px;top:-11px;width:28px;height:28px}
@keyframes g-ripple{from{opacity:.8;transform:scale(.5)}to{opacity:0;transform:scale(1.9)}}

/* shared mock controls */
.fbtn{display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-weight:600;font-size:13px;white-space:nowrap;transition:transform .12s,filter .12s}
.fbtn.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.pressed{transform:scale(.95);filter:brightness(.9)}
.fake-inp{display:flex;align-items:center;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font-size:13.5px;white-space:nowrap;overflow:hidden}
.fake-inp.focus,.fake-ta.focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.caret{display:none;width:1.5px;height:17px;margin-left:1px;background:var(--brand);animation:g-blink 1s steps(1) infinite}
.focus>.caret{display:block}
@keyframes g-blink{50%{opacity:0}}
.lbl{display:block;font-size:12px;font-weight:500;color:var(--ink-2);margin-bottom:5px}
.pill{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:99px;background:var(--info-soft);color:var(--info);font-style:normal;font-size:11.5px;font-weight:600;white-space:nowrap;transition:background .3s,color .3s}
.pill.ok{background:var(--ok-soft);color:var(--ok)}
.toast{position:absolute;left:50%;bottom:18px;z-index:8;max-width:88%;padding:10px 14px;border-radius:10px;background:var(--ink);color:var(--bg);font-size:12.5px;font-weight:500;box-shadow:0 10px 26px rgba(0,0,0,.25);transform:translate(-50%,12px);opacity:0;transition:opacity .3s,transform .3s}
.toast.in{opacity:1;transform:translate(-50%,0)}

/* k0 chat */
.chat-h{display:flex;align-items:center;gap:10px;padding:8px 14px 10px;border-bottom:1px solid var(--line);background:var(--surface)}
.chat-h small{display:block;font-size:11px;color:var(--ok)}
.av,.logo{display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:50%;background:var(--brand);color:var(--brand-ink);font-weight:700;font-size:13px}
.chat-b{display:flex;flex-direction:column;gap:8px;padding:14px 12px}
.bub{max-width:84%;padding:9px 12px;border-radius:16px 16px 16px 4px;background:var(--surface);border:1px solid var(--line);font-size:13px;transition:opacity .3s,transform .3s}
.bub.mine{align-self:flex-end;border-radius:16px 16px 4px 16px;background:var(--brand-soft);border-color:transparent}
.lnk{color:var(--info);text-decoration:underline;word-break:break-all;border-radius:4px;transition:background .2s}
.lnk.pressed{background:var(--info-soft);transform:none;filter:none}
.typing{display:flex;gap:4px;width:max-content;padding:12px 14px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--ink-3);animation:g-dot 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes g-dot{0%,60%,100%{opacity:.3;transform:none}30%{opacity:1;transform:translateY(-3px)}}
.guide.run .sc-chat .typing,.guide.run .sc-chat .b1,.guide.run .sc-chat .b2{opacity:0;transform:translateY(8px) scale(.97)}
.guide.run .sc-chat .typing:not(.in){position:absolute}
.guide.run .sc-chat .in{opacity:1;transform:none}

/* k1 PIN gate */
.sc-gate{display:flex;flex-direction:column;align-items:center;padding:56px 22px 0;text-align:center}
.sc-gate .logo{width:56px;height:56px;font-size:18px}
.sc-gate small{margin-top:8px;color:var(--ink-3);font-size:12px}
.sc-gate .gt{margin:6px 0 26px;font-family:var(--f-display);font-size:22px;letter-spacing:-.01em}
.sc-gate .lbl{align-self:flex-start}
.sc-gate .pin{width:100%;height:46px;font-size:17px;letter-spacing:.22em}
.sc-gate .go{width:100%;height:46px;margin-top:12px;font-size:14px}
.sc-gate .sub{margin-top:14px}

/* k2 grid + k4 send */
.ghead{display:flex;flex-direction:column;gap:1px;padding:6px 14px 10px}
.ghead b{font-size:15px}
.cnt{font-size:12px;color:var(--ink-2)}
.cnt b{font-size:12px;color:var(--brand)}
.tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;padding:0 3px}
/* sample photos in the mock screens: flat muted tones, plainly placeholders */
.tl{position:relative;display:block;aspect-ratio:1;background:var(--g,#C9D3E0);transition:box-shadow .2s}
.p0{--g:#A9C1B5}.p1{--g:#CFB59B}.p2{--g:#9FB5CC}.p3{--g:#C1A7BB}.p4{--g:#B7C5A1}.p5{--g:#CDAFA4}
@media (prefers-color-scheme: dark){.p0{--g:#2C3B34}.p1{--g:#3C332A}.p2{--g:#2A3541}.p3{--g:#382E3C}.p4{--g:#323A2A}.p5{--g:#3C2E2A}}
.tl .pk{position:absolute;top:6px;right:6px;display:grid;place-items:center;width:22px;height:22px;border-radius:50%;border:2px solid rgba(255,255,255,.9);background:rgba(0,0,0,.15);color:transparent;transition:background .2s,border-color .2s,transform .2s}
.tl .pk svg{width:12px;height:12px}
.tl.on{box-shadow:inset 0 0 0 3px var(--brand)}
.tl.on .pk{background:var(--brand);border-color:var(--brand);color:var(--brand-ink);transform:scale(1.08)}
.gbar{position:absolute;left:12px;right:12px;bottom:14px;display:flex;justify-content:space-between;align-items:center;height:50px;padding:0 16px;border-radius:14px;background:var(--brand);color:var(--brand-ink);font-weight:700;font-size:14px;box-shadow:0 8px 20px rgba(36,86,200,.3);transition:transform .12s,filter .12s}
.gbar span:last-child{font-weight:500;font-size:12.5px;opacity:.9}
.msheet,.nsheet{position:absolute;left:0;right:0;bottom:0;z-index:7;display:flex;flex-direction:column;gap:8px;padding:18px 16px 22px;border-radius:20px 20px 0 0;background:var(--surface);box-shadow:0 0 0 999px rgba(0,0,0,.38);transform:translateY(105%);transition:transform .35s cubic-bezier(.3,.7,.2,1),box-shadow .35s}
.msheet:not(.in),.nsheet:not(.in){box-shadow:0 0 0 999px rgba(0,0,0,0)}
.msheet.in,.nsheet.in{transform:none}
.msheet b,.nsheet b{font-size:15px}
.msheet span:not(.fbtn){font-size:12.5px;color:var(--ink-2)}
.msheet .fbtn,.nsheet .fbtn{height:44px;margin-top:6px}
.done{position:absolute;inset:0;z-index:8;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:0 26px;text-align:center;background:var(--surface);opacity:0;transition:opacity .3s}
.done b{font-family:var(--f-display);font-size:22px}
.done span:last-child{font-size:13px;color:var(--ink-2)}
.bigchk{display:grid;place-items:center;width:76px;height:76px;margin-bottom:6px;border-radius:50%;background:var(--brand);color:var(--brand-ink);transform:scale(.4);transition:transform .45s cubic-bezier(.3,1.6,.5,1)}
.bigchk svg{width:38px;height:38px}
.done.in{opacity:1}
.done.in .bigchk{transform:none}

/* k3 viewer */
.sc-view{background:#0B0D14;color:#F1F3F8}
.vtop{display:flex;align-items:center;justify-content:space-between;height:40px;padding:0 14px;font-size:12px}
.vx{font-size:22px;line-height:1}
.vchk{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--brand);color:var(--brand-ink)}
.vchk svg{width:13px;height:13px}
.vimg{padding:6px 14px}
.vimg svg{width:100%;height:auto;border-radius:6px}
.ring{fill:none;stroke:#E0352B;stroke-width:3.5;stroke-linecap:round;stroke-dasharray:100;stroke-dashoffset:100;transition:stroke-dashoffset 1.1s ease-in-out}
.ring.in{stroke-dashoffset:0}
.vtools{display:flex;justify-content:center;gap:6px;padding:12px 8px}
.vt{display:inline-flex;align-items:center;gap:5px;height:34px;padding:0 10px;white-space:nowrap;border-radius:99px;background:rgba(255,255,255,.1);font-size:12.5px;font-weight:600;transition:background .2s,color .2s,transform .12s}
.vt svg{width:14px;height:14px}
.vt.on{background:#6E9BFF;color:#0A1838}
.nsheet{color:var(--ink)}
.fake-ta{display:block;min-height:70px;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:13px}
.fake-ta .caret{display:none;vertical-align:-3px}
.fake-ta.focus .caret{display:inline-block}

/* window (studio) */
.win{width:640px;height:430px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:0 30px 60px -24px rgba(10,16,32,.35);overflow:hidden}
.wbar{display:flex;align-items:center;gap:6px;height:36px;padding:0 12px;background:var(--surface-2);border-bottom:1px solid var(--line)}
.url{flex:1;margin:0 40px;height:22px;line-height:22px;border-radius:6px;background:var(--surface);color:var(--ink-2);font-size:11.5px;text-align:center;overflow:hidden;white-space:nowrap}
.win .scr{height:394px}
.win .scene{display:block;padding:20px 26px}
.wh{display:block;margin-bottom:14px;font-family:var(--f-display);font-size:19px;letter-spacing:-.01em}
.fl{display:block;margin-bottom:11px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.factions{display:flex;justify-content:flex-end;gap:8px;margin-top:2px}
.syncing{display:block;margin-top:12px;opacity:0;transition:opacity .3s}
.syncing.in{opacity:1}
.pbar{display:block;height:6px;border-radius:6px;background:var(--surface-2);overflow:hidden}
.pbar i{display:block;width:0;height:100%;background:var(--brand);transition:width 1.6s ease-in-out}
.syncing.in .pbar i{width:100%}
.st1,.st2{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:12.5px;color:var(--ink-2)}
.st2,.syncing.ok .st1{display:none}
.syncing.ok .st2{display:flex}
.crumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2)}
.crumb b{color:var(--ink)}
.crumb .pill{margin-left:6px}
.card2{display:block;margin-top:16px;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.card2>b{font-size:15px}
.msg{display:block;margin:10px 0 14px;padding:12px 14px;border-radius:8px;background:var(--surface-2);font-size:13px;line-height:1.65;transition:box-shadow .3s}
.msg.hl{box-shadow:0 0 0 2px var(--brand)}
.brow{display:flex;flex-wrap:wrap;gap:8px}
.lrow{display:grid;grid-template-columns:1.5fr 1fr 64px 112px;align-items:center;gap:14px;padding:12px 14px;border:1px solid var(--line);border-bottom-width:0;background:var(--surface)}
.lrow:nth-of-type(1){border-radius:12px 12px 0 0}
.lrow:nth-of-type(3){border-bottom-width:1px;border-radius:0 0 12px 12px}
.lt b{display:block;font-size:13.5px}
.lt small{font-size:11.5px;color:var(--ink-3)}
.prog{display:block;height:6px;border-radius:6px;background:var(--surface-2);overflow:hidden}
.prog i{display:block;width:0;height:100%;background:var(--brand);transition:width .6s ease}
.prog .w60{width:60%}.prog .w100{width:100%}
.num{font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.num b{color:var(--ink)}
.lrow .pill{justify-self:start}
.rhead{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.rhead b{font-family:var(--f-display);font-size:17px}
.rhead .fbtn{height:32px;font-size:12px}
.rlist{display:block;border:1px solid var(--line);border-radius:12px;background:var(--surface);overflow:hidden}
.rr{display:grid;grid-template-columns:36px 108px auto 1fr;align-items:center;gap:10px;padding:7px 12px;border-top:1px solid var(--line);font-size:12.5px;transition:opacity .3s,transform .3s}
.rr:first-child{border-top:0}
.rr .tl{width:36px;height:26px;aspect-ratio:auto;border-radius:4px}
.rr small{overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--ink-3);font-size:12px}
.tg{padding:2px 8px;border-radius:99px;background:var(--info-soft);color:var(--info);font-size:11px;font-weight:600;white-space:nowrap}
.tg.red{background:var(--bad-soft);color:var(--bad)}
.rr:nth-child(3) small{grid-column:span 2}
.xq{display:block;margin-top:12px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.xq code{display:block;margin:2px 0 10px;padding:8px 10px;border-radius:6px;background:var(--surface-2);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:box-shadow .3s}
.xq.hl code{box-shadow:0 0 0 2px var(--brand)}
.xq .fbtn{height:32px;font-size:12px}
.guide.run .sc-res .rr{opacity:0;transform:translateY(6px)}
.guide.run .sc-res .rlist.in .rr{opacity:1;transform:none}
.rlist.in .rr:nth-child(2){transition-delay:.12s}.rlist.in .rr:nth-child(3){transition-delay:.24s}.rlist.in .rr:nth-child(4){transition-delay:.36s}

/* compact studio window for phones */
.win.compact{width:360px}
.win.compact .scene{padding:16px 18px}
.win.compact .url{margin-right:10px}
.win.compact .wh{font-size:17px;margin-bottom:10px}
.win.compact .fbtn{padding:0 11px}
.win.compact .lrow{grid-template-columns:1fr auto;grid-template-areas:"lt pill" "prog num";gap:8px 12px}
.win.compact .lt{grid-area:lt}.win.compact .lrow .pill{grid-area:pill;justify-self:end}.win.compact .prog{grid-area:prog}.win.compact .num{grid-area:num}
.win.compact .rr{grid-template-columns:30px 1fr auto}
.win.compact .rr small{display:none}
.win.compact .rhead .fbtn{padding:0 9px}

@media (prefers-reduced-motion: reduce){
  .guide *,.guide *::before,.guide *::after{transition:none!important;animation:none!important}
}

/* footer: who runs the site and how to reach them */
.foot{border-top:1px solid var(--line);background:var(--surface);padding:32px 0 calc(22px + env(safe-area-inset-bottom,0px));font-size:14.5px;color:var(--ink-2)}
.foot a{color:inherit;text-underline-offset:3px}
.foot a:hover{color:var(--ink)}
.foot-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px 16px}
.foot-brand{grid-column:1/-1}
@media (min-width:760px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}.foot-brand{grid-column:auto}}
.foot-brand .brand{margin:0;color:var(--ink)}
.foot-brand p{margin-top:8px}
.foot-col h2{margin:0 0 6px;font-size:13px;font-weight:600;color:var(--ink)}
.foot-col a{display:block;padding:3px 0;text-decoration:none}
.foot-col a:hover{text-decoration:underline}
.foot-col p{margin:0 0 6px}
.foot-col p a{display:inline;padding:0}
.muted{color:var(--ink-3)}
.foot-legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 28px;margin-top:24px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3)}