/* Chung Anh Retail — shared styles.
   Layout: every page opens on one navy screen (logo or a white line drawing),
   then quiet paper sections where navy line art sketches itself in on scroll. */
:root{
  --navy:#0b1158;        /* brand navy, deepened for full-bleed grounds */
  --navy-2:#141c7a;      /* logo navy */
  --steel:#7c8aa5;       /* the logo's "retail" grey-blue */
  --paper:#f6f7fb;       /* cool white with a navy bias */
  --ink:#0b1158;
  --line:rgba(11,17,88,.14);
  --f-display:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.16,1,.3,1);
  --gut-l:max(16px,env(safe-area-inset-left,0px));
  --gut-r:max(16px,env(safe-area-inset-right,0px));
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-display);font-weight:300;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--steel);outline-offset:4px}

/* scroll progress */
.progress{position:fixed;inset:0 0 auto;height:2px;z-index:50;pointer-events:none}
.progress i{display:block;height:100%;width:100%;background:var(--steel);transform-origin:0 50%;transform:scaleX(0)}

/* top bar on inner pages: reads on navy and paper alike */
.topbar{position:fixed;z-index:40;top:calc(20px + env(safe-area-inset-top,0px));left:calc(var(--gut-l) + 8px);right:calc(var(--gut-r) + 8px);
  display:flex;justify-content:space-between;align-items:center;pointer-events:none;mix-blend-mode:difference;color:#fff}
.topbar a{pointer-events:auto;text-decoration:none;font:400 11px/1 var(--f-mono);letter-spacing:.22em;text-transform:uppercase;display:inline-flex;align-items:center;gap:10px;padding:8px 0}
.topbar img{width:26px;height:auto}
.topbar a:hover .arr{transform:translateX(-4px)}
.arr{display:inline-block;transition:transform .4s var(--ease)}

/* ---------- HERO ---------- */
.hero{position:relative;height:100vh;height:100svh;min-height:540px;background:var(--navy);color:#fff;
  display:grid;place-items:center;overflow:hidden;isolation:isolate;padding-left:var(--gut-l);padding-right:var(--gut-r)}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.hero .glow{position:absolute;width:70vmax;height:70vmax;border-radius:50%;left:50%;top:50%;z-index:-1;
  background:radial-gradient(closest-side,rgba(124,138,165,.28),rgba(124,138,165,0));transform:translate(-50%,-50%);transition:transform 1.2s var(--ease);pointer-events:none}
.logo-wrap{width:min(760px,82vw);position:relative;margin:0}
.logo-svg{display:block;width:100%;height:auto;overflow:visible}
.logo-svg .ln{fill:#fff;stroke:#fff;stroke-width:1.3;stroke-linejoin:round;stroke-dasharray:1 1;stroke-dashoffset:0;stroke-opacity:0}
.logo-svg .soft{fill:#fff;stroke:#fff}
.logo-svg .tag{fill:#fff;opacity:.92}
.logo-wrap .shine{position:absolute;inset:0;pointer-events:none;
  -webkit-mask:url(logo-white.svg) center/100% 100% no-repeat;mask:url(logo-white.svg) center/100% 100% no-repeat;
  background:linear-gradient(105deg,transparent 40%,rgba(124,138,165,.95) 50%,transparent 60%) -150% 0/250% 100% no-repeat;
  animation:shine 7s 4s ease-in-out infinite}
@keyframes shine{0%,70%{background-position:-150% 0}100%{background-position:150% 0}}
/* outline draws itself, then fills */
.anim .logo-svg .ln{animation:lnDraw 1.5s var(--ease) var(--d) both, lnFill .9s ease var(--d) both}
.anim .logo-svg .ln{animation-delay:calc(var(--d) + .3s), calc(var(--d) + 1.55s)}
@keyframes lnDraw{from{stroke-dashoffset:1;stroke-opacity:1}to{stroke-dashoffset:0;stroke-opacity:1}}
@keyframes lnFill{from{fill-opacity:0;stroke-opacity:1}to{fill-opacity:1;stroke-opacity:0}}
.anim .logo-svg .tag{animation:tagIn 1.2s var(--ease) calc(var(--d) + 1.4s) both}
@keyframes tagIn{from{opacity:0;transform:translateY(6px)}to{opacity:.92;transform:none}}
.anim .logo-wrap{animation:logoGlow 1.6s ease 3s both}
@keyframes logoGlow{0%{filter:none}40%{filter:drop-shadow(0 0 24px rgba(255,255,255,.35))}100%{filter:drop-shadow(0 0 40px rgba(255,255,255,.06))}}
.scroll-cue{position:absolute;left:50%;bottom:calc(32px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);
  width:1px;height:64px;background:rgba(255,255,255,.18);overflow:hidden}
.scroll-cue::after{content:"";position:absolute;left:0;top:-40%;width:100%;height:40%;background:#fff;animation:cue 2.2s var(--ease) infinite}
@keyframes cue{to{top:100%}}
.corner{position:absolute;font:400 11px/1 var(--f-mono);letter-spacing:.2em;color:rgba(255,255,255,.4);text-transform:uppercase}
.corner.tl{top:calc(28px + env(safe-area-inset-top,0px));left:max(24px,env(safe-area-inset-left,0px))}
.corner.br{bottom:calc(36px + env(safe-area-inset-bottom,0px));right:max(24px,env(safe-area-inset-right,0px))}

/* inner-page hero: white drawing + title */
.hero-in{display:grid;grid-template-columns:1fr;justify-items:center;gap:clamp(20px,4vh,40px);width:min(1100px,100%);text-align:center}
.hero-art{width:min(560px,86vw);aspect-ratio:4/3}
.hero-art svg{width:100%;height:100%;overflow:visible}
.hero .s{stroke:#fff}
.hero .dot{fill:#fff}
.hero-title{margin:0;font-weight:200;font-size:clamp(36px,6vw,80px);line-height:1.02;letter-spacing:-.03em;text-wrap:balance}
.hero-title b{font-weight:500}
.hero .idx{justify-content:center}
.hero .idx::after{display:none}

/* ---------- ROWS ---------- */
.wrap{padding-left:var(--gut-l);padding-right:var(--gut-r)}
.row{max-width:1180px;margin:0 auto;min-height:88vh;display:grid;grid-template-columns:7fr 5fr;align-items:center;gap:clamp(24px,6vw,96px);
  padding-block:clamp(64px,10vw,120px);border-top:1px solid var(--line);position:relative}
.row:first-child{border-top:0}
.row.flip{grid-template-columns:5fr 7fr}
.row.flip .art{order:2}
.row.short{min-height:70vh}
.art{position:relative;aspect-ratio:4/3;max-width:100%}
.art svg{width:100%;height:100%;overflow:visible}
.disc{position:absolute;inset:8% 12%;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fff,#e8ebf4 70%);z-index:-1;transition:transform 1.4s var(--ease),opacity 1.4s var(--ease)}
.anim [data-reveal]:not(.in) .disc{transform:scale(.6);opacity:0}
.copy{position:relative;min-width:0}
.idx{font:400 12px/1 var(--f-mono);letter-spacing:.24em;color:var(--steel);display:flex;align-items:center;gap:14px;text-transform:uppercase}
.idx::after{content:"";height:1px;width:56px;background:currentColor;transform-origin:0 50%;transition:transform 1.2s .3s var(--ease)}
.copy h2{margin:22px 0 0;font-weight:200;font-size:clamp(34px,5.2vw,68px);line-height:1.04;letter-spacing:-.025em;text-wrap:balance}
.copy h2 b,.sec-title b{font-weight:500}
.copy p,.lede{margin:22px 0 0;font-size:clamp(15px,1.3vw,17px);line-height:1.7;color:var(--steel);max-width:34ch;font-weight:400}
.w{display:inline-block;overflow:hidden;vertical-align:bottom;padding-bottom:.08em}
.w>span{display:inline-block;transition:transform 1.1s var(--ease)}
.w:nth-child(2)>span{transition-delay:.08s}.w:nth-child(3)>span{transition-delay:.16s}
.w:nth-child(4)>span{transition-delay:.24s}.w:nth-child(5)>span{transition-delay:.32s}
.big{position:absolute;right:-.06em;top:50%;transform:translateY(-50%);font-weight:200;font-size:clamp(160px,24vw,340px);line-height:1;color:transparent;
  -webkit-text-stroke:1px var(--line);z-index:-1;pointer-events:none;user-select:none}

/* home rows link to their page */
.go{display:inline-flex;align-items:center;gap:14px;margin-top:34px;text-decoration:none;font:400 11px/1 var(--f-mono);letter-spacing:.22em;text-transform:uppercase}
.go .ring{width:44px;height:44px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;transition:background .5s var(--ease),color .5s,border-color .5s,transform .5s var(--ease)}
.go{position:relative;z-index:1}
.row:has(.go){cursor:pointer}
.row:hover .go .ring{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateX(6px)}

/* ---------- TILES ---------- */
.sec{max-width:1180px;margin:0 auto;padding-block:clamp(72px,11vw,140px)}
.sec + .sec{border-top:1px solid var(--line)}
.sec-title{margin:18px 0 0;font-weight:200;font-size:clamp(30px,4vw,52px);line-height:1.08;letter-spacing:-.02em;text-wrap:balance}
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:clamp(36px,5vw,64px)}
.tiles.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.tile{background:var(--paper);padding:clamp(22px,3vw,40px) clamp(16px,2vw,28px);display:grid;gap:18px;justify-items:center;text-align:center;transition:background .6s var(--ease)}
.tile svg{width:min(150px,70%);aspect-ratio:1;overflow:visible;transition:transform .8s var(--ease)}
.tile:hover{background:#fff}
.tile:hover svg{transform:translateY(-6px) scale(1.04)}
.tile h3{margin:0;font-weight:400;font-size:clamp(15px,1.4vw,18px);letter-spacing:-.005em}
.tile small{font:400 10px/1 var(--f-mono);letter-spacing:.2em;color:var(--steel);text-transform:uppercase}

/* stagger tiles */
.tiles .tile:nth-child(2) .draw{transition-delay:.12s}.tiles .tile:nth-child(3) .draw{transition-delay:.24s}
.tiles .tile:nth-child(4) .draw{transition-delay:.36s}.tiles .tile:nth-child(5) .draw{transition-delay:.48s}.tiles .tile:nth-child(6) .draw{transition-delay:.6s}

/* ---------- STATS ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(20px,3vw,40px);margin-top:clamp(36px,5vw,64px)}
.stat{border-top:1px solid var(--ink);padding-top:18px;display:grid;gap:10px;align-content:start}
.stat strong{font-weight:200;font-size:clamp(40px,5.5vw,76px);line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat span{font:400 11px/1.5 var(--f-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--steel)}

/* ---------- CTA BAND ---------- */
.cta{background:var(--navy);color:#fff;padding-left:var(--gut-l);padding-right:var(--gut-r);position:relative;overflow:hidden}
.cta .in{max-width:1180px;margin:0 auto;padding-block:clamp(80px,12vw,150px);display:grid;gap:28px;justify-items:start}
.cta .idx{color:rgba(255,255,255,.5)}
.cta h2{margin:0;font-weight:200;font-size:clamp(36px,6vw,84px);line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.cta h2 a{text-decoration:none;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .7s var(--ease)}
.cta h2 a:hover{background-size:100% 1px}
.btn{display:inline-flex;align-items:center;gap:14px;padding:18px 28px;border:1px solid rgba(255,255,255,.4);border-radius:999px;text-decoration:none;
  font:400 12px/1 var(--f-mono);letter-spacing:.2em;text-transform:uppercase;transition:background .5s var(--ease),color .5s,border-color .5s}
.btn:hover{background:#fff;color:var(--navy);border-color:#fff}
.btn:hover .arr{transform:translateX(5px)}
.cta .ghost{position:absolute;right:-4vw;bottom:-6vw;width:min(46vw,520px);opacity:.08;pointer-events:none}

/* ---------- FOOTER ---------- */
footer{background:var(--navy);color:rgba(255,255,255,.6);padding-left:var(--gut-l);padding-right:var(--gut-r);border-top:1px solid rgba(255,255,255,.08)}
footer .in{max-width:1180px;margin:0 auto;padding-block:72px 48px;display:grid;grid-template-columns:1.2fr 1fr;gap:48px}
footer .brand img{width:220px;height:auto}
footer address{font-style:normal;margin-top:28px;display:grid;gap:8px;font-size:14px;line-height:1.6}
footer address strong{color:#fff;font-weight:500;letter-spacing:.04em}
footer .k{font:400 10px/1 var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.4);margin-right:10px}
footer .hot{color:#fff;text-decoration:none;font-variant-numeric:tabular-nums}
footer nav{display:grid;gap:14px;align-content:start;justify-items:start}
footer nav a{text-decoration:none;font-size:15px;color:rgba(255,255,255,.8);transition:color .3s,transform .4s var(--ease)}
footer nav a:hover{color:#fff;transform:translateX(4px)}
footer .base{grid-column:1/-1;padding-top:28px;border-top:1px solid rgba(255,255,255,.08);font:400 10px/1.6 var(--f-mono);letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.35)}

/* ---------- LINE DRAWING ---------- */
.s{fill:none;stroke:var(--ink);stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.s2{fill:none;stroke:var(--steel);stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round}
.dot{fill:var(--ink)}
.acc{fill:var(--steel)}
.draw{stroke-dasharray:1;stroke-dashoffset:0;transition:stroke-dashoffset 2.2s var(--ease)}
.anim [data-reveal]:not(.in) .draw{stroke-dashoffset:1}
.pop{transform-box:fill-box;transform-origin:center;transition:transform 1s .6s var(--ease),opacity 1s .6s}
.anim [data-reveal]:not(.in) .pop{transform:scale(0);opacity:0}
.anim [data-reveal]:not(.in) .idx::after{transform:scaleX(0)}
.anim [data-reveal]:not(.in) .w>span{transform:translateY(105%)}
.fade{transition:opacity 1.2s .4s var(--ease),transform 1.2s .4s var(--ease)}
.anim [data-reveal]:not(.in) .fade{opacity:0;transform:translateY(16px)}

/* ambient loops */
.float{animation:float 6s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
.float.d2{animation-delay:-2s}.float.d3{animation-delay:-4s}
@keyframes float{50%{transform:translateY(-10px)}}
.spin{animation:spin 30s linear infinite;transform-box:fill-box;transform-origin:center}
@keyframes spin{to{transform:rotate(360deg)}}
.sway{animation:sway 4s ease-in-out infinite;transform-box:fill-box;transform-origin:50% 100%}
@keyframes sway{50%{transform:rotate(4deg)}}
.blink{animation:blink 1.1s steps(1) infinite}@keyframes blink{50%{opacity:0}}
.twinkle{animation:tw 2.4s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes tw{50%{opacity:.25;transform:scale(.6)}}
.flow{stroke-dasharray:.04 .06;animation:flow 3s linear infinite}
@keyframes flow{to{stroke-dashoffset:-1}}
.rise{animation:rise 3.2s ease-in infinite;transform-box:fill-box;transform-origin:center}
@keyframes rise{0%{transform:translateY(0);opacity:0}15%{opacity:1}100%{transform:translateY(-70px);opacity:0}}
.pour{stroke-dasharray:.3 .7;animation:pour 1.1s linear infinite}
@keyframes pour{to{stroke-dashoffset:-1}}
.clink{transform-box:fill-box;transition:transform .6s var(--ease)}
[data-reveal]:hover .clink.l,.hero .clink.l{animation:clinkL 3.6s var(--ease) infinite}
[data-reveal]:hover .clink.r,.hero .clink.r{animation:clinkR 3.6s var(--ease) infinite}
.clink.l{transform-origin:100% 100%}.clink.r{transform-origin:0 100%}
@keyframes clinkL{0%,60%,100%{transform:none}75%{transform:rotate(7deg)}}
@keyframes clinkR{0%,60%,100%{transform:none}75%{transform:rotate(-7deg)}}
.grow{transform-box:fill-box;transform-origin:50% 100%;transition:transform 1.6s .5s var(--ease)}
.anim [data-reveal]:not(.in) .grow{transform:scaleY(0)}

@media (max-width:900px){
  .tiles,.tiles.four{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .row,.row.flip{grid-template-columns:1fr;min-height:auto;gap:28px}
  .row.flip .art{order:0}
  .big{top:auto;bottom:-.1em;transform:none;font-size:42vw}
  .corner{display:none}
  footer .in{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}