/* Relove × Sephine — the brand layer. From the client's Brief: liquid silver, a silver life form, white living cells, the Relove® wordmark, future-metal.
   Silver by default; black only where a photograph needs it. Only one hue is ever saturated on a page: the colour the visitor chose. */
:root{
  --bg:#d9d9dd;--bg2:#ececee;--bg3:#f6f6f7;--ink:#0b0b0d;--ink2:#4a4a50;--dim:#8a8a90;--line:rgba(11,11,13,.14);--line2:rgba(11,11,13,.34);
  --sq:#0b0b0d;--sq2:#4a4a50;--ice:#3d7fe6;
  --chrome:linear-gradient(168deg,#ffffff 0%,#b9b9bf 18%,#3c3c42 44%,#f2f2f4 56%,#7a7a82 76%,#1e1e22 100%);
  --silver:linear-gradient(180deg,#f4f4f6 0%,#dadadf 48%,#c7c7cd 100%);
  --disp:'Archivo',system-ui,sans-serif;--mono:'IBM Plex Mono',ui-monospace,monospace;--tc:'Noto Sans TC','PingFang TC','Microsoft JhengHei',sans-serif;--serif:'Noto Serif TC','Songti TC',serif;
}
[hidden]{display:none!important}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 var(--tc);-webkit-tap-highlight-color:transparent;overflow-x:hidden}
body{background:var(--silver) fixed}
h1,h2,h3,h4{margin:0;font-weight:900;line-height:1.04;letter-spacing:-.02em;text-wrap:balance}
p{margin:0}
a{color:inherit}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
button:focus-visible,input:focus-visible,a:focus-visible{outline:1px solid var(--ink);outline-offset:3px}
::selection{background:var(--ink);color:#fff}

/* type */
.cap{font-family:var(--mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--ink2)}
.cap.sq{color:var(--sq)}
.chrome{background:var(--chrome);-webkit-background-clip:text;background-clip:text;color:transparent}
.disp{font-family:var(--disp);font-weight:900;font-stretch:125%;letter-spacing:-.03em;line-height:.86}
.serif{font-family:var(--serif)}
.big{font-size:clamp(44px,9.2vw,152px);line-height:.98;letter-spacing:-.035em}
.mid{font-size:clamp(30px,5.2vw,84px);letter-spacing:-.03em}
.lede{color:var(--ink2);font-size:clamp(15px,1.3vw,20px);max-width:52ch}
.tag{display:inline-flex;align-items:center;gap:12px;font-family:var(--mono);font-size:11.5px;letter-spacing:.26em;text-transform:uppercase;color:var(--ink2)}
.tag i{width:9px;height:9px;border-radius:50%;background:var(--ice);box-shadow:0 0 12px rgba(61,127,230,.6);display:inline-block}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:16px 26px;border:1px solid var(--ink);background:var(--ink);color:#fff;font-family:var(--mono);font-size:12.5px;letter-spacing:.22em;text-transform:uppercase;white-space:nowrap;transition:background .2s,color .2s,border-color .2s;text-decoration:none;border-radius:0}
.btn:hover{background:transparent;color:var(--ink)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line2)}.btn.ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn.sq{background:var(--sq);border-color:var(--sq);color:#fff}.btn.sq:hover{background:transparent;color:var(--ink)}
.btn.small{padding:11px 16px;font-size:11px}
.btn.pill{border-radius:999px}
.btn[disabled]{opacity:.3;pointer-events:none}

/* the wordmark: the client's own */
.relove{display:inline-block;height:20px;width:auto;vertical-align:middle}
.relove.lg{height:clamp(28px,4vw,56px)}
.relove.w{filter:invert(1)}

/* surfaces */
.grain{position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.2;mix-blend-mode:multiply;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 .2 0 0 0 0 .2 0 0 0 0 .22 0 0 0 .2 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}
.liquid{position:absolute;inset:0;pointer-events:none;background:url(brand/liquid.jpg) center/cover no-repeat;opacity:.9;mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.6) 55%,transparent 100%);-webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.6) 55%,transparent 100%)}
.hair{height:1px;background:var(--line);border:0;margin:0}
.kick{display:flex;align-items:center;gap:14px;margin-bottom:26px}
.kick::after{content:"";flex:1;height:1px;background:var(--line)}
.wrap{max-width:1440px;margin:0 auto;padding:0 clamp(18px,4vw,72px)}
.bleed{margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw)}
.sec{padding:clamp(72px,12vh,150px) 0}
.sec.tight{padding:clamp(44px,7vh,88px) 0}
.sec.white{background:var(--bg3)}

/* a full-bleed photo band with copy on it: the one place black is allowed */
.band{position:relative;min-height:clamp(420px,70vh,820px);display:flex;align-items:flex-end;overflow:hidden;background:#0b0b0d;color:#f3f3f1}
.band img.ph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.92}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,7,10,.05) 0%,rgba(7,7,10,0) 40%,rgba(7,7,10,.8) 100%)}
.band .in{position:relative;z-index:2;padding:clamp(28px,5vw,72px);display:flex;flex-direction:column;gap:14px;max-width:1100px}
.band .lede{color:rgba(243,243,241,.72)}
.band .tag{color:rgba(243,243,241,.7)}
.band.ai::before,.band.src::before{position:absolute;right:16px;top:14px;z-index:3;font-family:var(--mono);font-size:9px;letter-spacing:.2em;color:rgba(255,255,255,.55)}
.band.ai::before{content:"AI 示意圖"}.band.src::before{content:"客戶 Brief 示意"}

/* statement rows: no boxes, hairlines and big words */
.rows{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line2)}
.rows>div{padding:28px 28px 34px 0;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.rows>div:last-child{border-right:0}
.rows>div+div{padding-left:28px}
.rows h4{font-size:clamp(20px,1.9vw,28px);line-height:1.2}
.rows p{color:var(--ink2);font-size:14px;max-width:34ch}
.rows .n{font-family:var(--disp);font-weight:900;font-stretch:125%;font-size:12px;letter-spacing:.24em;color:var(--dim)}

/* glass panel on silver */
.glass{background:rgba(246,246,247,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--line);box-shadow:0 30px 60px rgba(11,11,13,.12)}

/* toast + loading */
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:12;padding:10px 16px;background:var(--ink);color:#fff;font-family:var(--mono);font-size:11px;letter-spacing:.1em;opacity:0;transition:opacity .3s;pointer-events:none;max-width:calc(100% - 32px);text-align:center}
.toast.show{opacity:1}
.loading{position:fixed;inset:0;z-index:20;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--silver)}
.loading .bar{width:min(240px,60vw);height:1px;background:var(--line2);position:relative;overflow:hidden}.loading .bar i{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--ink);transition:width .2s}

footer.site{padding:34px clamp(18px,4vw,72px) 44px;border-top:1px solid var(--line2);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center;font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
footer.site .relove{height:16px;opacity:.9}

@media (max-width:900px){
  .wrap{padding:0 18px}
  .sec{padding:clamp(48px,9vh,96px) 0}
  .btn{padding:14px 18px}
  .rows{grid-template-columns:1fr}
  .rows>div{border-right:0;border-bottom:1px solid var(--line);padding:22px 0}
  .rows>div+div{padding-left:0}
  .rows>div:last-child{border-bottom:0}
  .band{min-height:70vh}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}