/* ===== Site chrome (portfolio) ===== */
:root{
  --bg:#F6F4EE; --paper:#FFFFFF; --ink:#1C1918; --muted:#6E6862; --line:#E4DFD5;
  --radius:22px; --max:1240px;
  --font:"Manrope",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 32px}
@media(max-width:700px){.wrap{padding:0 16px}body{font-size:16px}}

/* header */
header.top{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .3s}
header.top.scrolled{border-color:var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-weight:800;letter-spacing:-.02em;text-decoration:none;font-size:18px;display:flex;align-items:center;gap:10px}
.brand i{width:30px;height:30px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center;font-style:normal;font-size:12px;font-weight:800}
.nav{display:flex;gap:28px;font-size:15px;font-weight:600}
.nav a{text-decoration:none;opacity:.7;transition:opacity .2s}
.nav a:hover{opacity:1}
@media(max-width:700px){.nav{gap:16px;font-size:14px}.nav .hide-m{display:none}}

/* type */
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;opacity:.6}
h1,.h1{font-size:clamp(40px,7vw,96px);line-height:.98;letter-spacing:-.045em;font-weight:800}
h2,.h2{font-size:clamp(30px,4.2vw,56px);line-height:1.04;letter-spacing:-.035em;font-weight:800}
h3,.h3{font-size:clamp(20px,2vw,26px);line-height:1.2;letter-spacing:-.02em;font-weight:700}
.lead{font-size:clamp(18px,1.6vw,22px);line-height:1.5;color:var(--muted);max-width:720px}
.muted{color:var(--muted)}
section{padding:110px 0}
@media(max-width:700px){section{padding:70px 0}}

/* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* footer */
.foot{padding:90px 0 50px;border-top:1px solid var(--line)}
.foot .big{font-size:clamp(34px,5.5vw,72px);font-weight:800;letter-spacing:-.04em;line-height:1}
.foot .row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 24px;border-radius:999px;background:var(--ink);color:var(--bg);text-decoration:none;font-weight:700;font-size:15px;transition:transform .2s}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.foot small{display:block;margin-top:60px;color:var(--muted);font-size:13px}

/* ===== Case page blocks ===== */
.hero{position:relative;overflow:hidden;color:var(--hero-ink,#fff);background:var(--hero-bg);padding:70px 0 0}
.hero .meta{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0 0}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;border:1px solid currentColor;opacity:.85}
.hero .tag{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;opacity:.7;margin-bottom:22px}
.hero .sub{font-size:clamp(18px,1.7vw,23px);max-width:640px;opacity:.85;margin-top:22px;line-height:1.45}
.hero-stage{position:relative;margin-top:70px;display:flex;justify-content:center;align-items:flex-end;gap:28px;min-height:420px}

.note{display:flex;gap:16px;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:20px 22px;font-size:15px;max-width:820px}
.note b{font-weight:800}
.note .dot{flex:none;width:10px;height:10px;border-radius:50%;background:var(--acc);margin-top:7px}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:64px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.grid2{grid-template-columns:1fr;gap:28px}.grid3{grid-template-columns:1fr}}

.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.card .num{font-size:13px;font-weight:800;color:var(--acc);letter-spacing:.1em}
.card h3{margin:14px 0 10px}
.card p{color:var(--muted);font-size:15.5px}
.card .quote{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);font-size:15px;font-style:italic;color:var(--ink)}

.flow{display:grid;grid-template-columns:repeat(var(--n,5),1fr);gap:0;margin-top:50px;counter-reset:f}
.flow .st{position:relative;padding:0 18px 0 0}
.flow .st::before{counter-increment:f;content:counter(f,decimal-leading-zero);display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--acc);color:var(--acc-ink,#fff);font-weight:800;font-size:14px;position:relative;z-index:1}
.flow .st::after{content:"";position:absolute;top:23px;left:46px;right:0;height:2px;background:repeating-linear-gradient(90deg,var(--acc) 0 6px,transparent 6px 12px);opacity:.5}
.flow .st:last-child::after{display:none}
.flow h4{font-size:17px;margin:18px 0 6px;letter-spacing:-.01em}
.flow p{font-size:14.5px;color:var(--muted)}
@media(max-width:900px){.flow{grid-template-columns:1fr;gap:26px}.flow .st{padding:0 0 0 64px;min-height:46px}.flow .st::before{position:absolute;left:0;top:0}.flow .st::after{left:22px;top:46px;bottom:-26px;right:auto;width:2px;height:auto;background:repeating-linear-gradient(180deg,var(--acc) 0 6px,transparent 6px 12px)}.flow h4{margin-top:10px}}

/* prototype area */
.proto{display:grid;grid-template-columns:1fr 420px;gap:60px;align-items:center}
.proto.wide{grid-template-columns:1fr}
@media(max-width:1000px){.proto{grid-template-columns:1fr}}
.feats{list-style:none;display:grid;gap:12px;margin-top:30px}
.feats li{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;border-radius:16px;background:var(--paper);border:1px solid var(--line);cursor:pointer;transition:border-color .2s,transform .2s}
.feats li:hover,.feats li.on{border-color:var(--acc);transform:translateX(4px)}
.feats li .k{flex:none;width:28px;height:28px;border-radius:9px;background:var(--acc);color:var(--acc-ink,#fff);display:grid;place-items:center;font-weight:800;font-size:13px}
.feats li b{display:block;font-size:15.5px}
.feats li span{font-size:14px;color:var(--muted)}
.hint{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--acc);margin-top:22px}
.hint::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--acc);animation:ping 1.6s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--acc) 60%,transparent)}100%{box-shadow:0 0 0 12px transparent}}

/* devices */
.phone{--w:375px;--h:780px;width:var(--w);height:var(--h);border-radius:52px;background:#0d0d0f;padding:11px;box-shadow:0 50px 100px -30px rgba(0,0,0,.45),0 0 0 1.5px #2a2a2e inset;position:relative;flex:none}
.phone>.scr{width:100%;height:100%;border-radius:42px;overflow:hidden;position:relative;background:#fff}
.phone::before{content:"";position:absolute;top:22px;left:50%;transform:translateX(-50%);width:110px;height:30px;border-radius:20px;background:#0d0d0f;z-index:20}
.phone.sm{transform:scale(.82);transform-origin:bottom center;margin:0 -34px}
.laptop{width:min(1100px,100%);flex:none}
.laptop .lid{background:#121214;border-radius:18px 18px 0 0;padding:14px 14px 0;box-shadow:0 50px 100px -40px rgba(0,0,0,.5)}
.laptop .scr{aspect-ratio:16/10;border-radius:8px 8px 0 0;overflow:hidden;background:#fff;position:relative}
.laptop .base{height:16px;background:linear-gradient(#d9d9dc,#a9a9ae);border-radius:0 0 18px 18px;margin:0 -3%;position:relative}
.laptop .base::after{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:16%;height:7px;background:#8d8d92;border-radius:0 0 9px 9px}

/* screen strip */
.strip{display:flex;gap:30px;overflow-x:auto;padding:20px 32px 40px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.strip>*{scroll-snap-align:center}
.strip .cap{font-size:14px;font-weight:700;margin-top:18px;text-align:center}
.strip .cap span{display:block;font-weight:500;color:var(--muted);font-size:13px}
.strip-wrap{position:relative}

/* ui kit */
.kit{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.kit .k{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;overflow:hidden}
.kit .k h5{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;font-weight:700}
.sw{display:flex;gap:10px;flex-wrap:wrap}
.sw div{flex:1 1 90px;height:110px;border-radius:14px;padding:10px;display:flex;flex-direction:column;justify-content:flex-end;font-size:11px;font-weight:700;font-family:ui-monospace,Menlo,monospace}
.c4{grid-column:span 4}.c5{grid-column:span 5}.c6{grid-column:span 6}.c7{grid-column:span 7}.c8{grid-column:span 8}.c12{grid-column:span 12}
@media(max-width:900px){.kit>*{grid-column:span 12!important}}

/* next case */
.next{display:block;text-decoration:none;background:var(--next-bg);color:var(--next-ink,#fff);padding:90px 0;position:relative;overflow:hidden}
.next .h1{margin-top:12px}
.next .arr{display:inline-block;transition:transform .3s}
.next:hover .arr{transform:translateX(16px)}

/* scale helper for screens inside fixed boxes */
.fit{transform-origin:top left}
@media(max-width:700px){.feats li:hover,.feats li.on{transform:none}.note{font-size:14px}}
.brand img{width:28px;height:28px;border-radius:4px;display:block}