*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --ink:#0d1117;--ink-60:rgba(13,17,23,.6);--ink-25:rgba(13,17,23,.18);
  --teal:#0d9488;--teal-2:#14b8a6;--teal-bg:#f0fdfa;
  --surface:#f7f8fa;--white:#fff;--border:rgba(13,17,23,.09);
  --r:14px;--rp:100px;
}
html{scroll-behavior:smooth}
body{font-family:'DM Sans',sans-serif;background:var(--surface);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:15px}

nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 52px;height:56px;background:rgba(247,248,250,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-logo{font-family:'Syne',sans-serif;font-weight:800;font-size:15px;letter-spacing:-.3px;color:var(--ink);text-decoration:none}
.nav-logo em{font-style:normal;color:var(--teal)}
.nav-back{display:flex;align-items:center;gap:6px;font-family:'Syne',sans-serif;font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--ink-60);text-decoration:none;transition:color .2s}
.nav-back:hover{color:var(--teal)}
.nav-back::before{content:'←';font-size:15px}
.nav-next{display:flex;align-items:center;gap:6px;font-family:'Syne',sans-serif;font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--ink-60);text-decoration:none;transition:color .2s}
.nav-next:hover{color:var(--teal)}
.nav-next::after{content:'→';font-size:15px}

/* HERO */
.case-hero{padding:72px 52px 60px;position:relative;overflow:hidden}
.case-hero::after{content:'';position:absolute;top:-30%;right:-8%;width:500px;height:500px;border-radius:50%;border:1px solid rgba(255,255,255,.06);pointer-events:none}
.hero-inner{max-width:960px;margin:0 auto}
.case-eyebrow{font-family:'Syne',sans-serif;font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.45);margin-bottom:20px;display:flex;align-items:center;gap:8px}
.case-eyebrow::before{content:'';width:16px;height:1.5px;background:rgba(255,255,255,.4);display:block}
.case-hero h1{font-family:'Instrument Serif',serif;font-size:clamp(34px,5vw,58px);line-height:1.05;letter-spacing:-1.5px;color:#fff;margin-bottom:20px;max-width:760px}
.case-hero h1 em{font-style:italic;color:rgba(255,255,255,.6)}
.case-hero-sub{font-size:16px;color:rgba(255,255,255,.48);font-weight:300;max-width:580px;line-height:1.72;margin-bottom:48px}
.meta-row{display:flex;gap:40px;flex-wrap:wrap}
.meta-item{display:flex;flex-direction:column;gap:3px}
.meta-label{font-family:'Syne',sans-serif;font-size:9px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.28)}
.meta-val{font-size:13px;font-weight:500;color:rgba(255,255,255,.72)}

/* CONTENT */
.case-content{max-width:960px;margin:0 auto;padding:64px 52px}
.block{margin-bottom:64px}
.block:last-child{margin-bottom:0}
.block-eye{font-family:'Syne',sans-serif;font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.block-eye::before{content:'';width:16px;height:1.5px;background:var(--teal);display:block}
.block-h{font-family:'Instrument Serif',serif;font-size:clamp(24px,3.5vw,36px);line-height:1.1;letter-spacing:-.6px;color:var(--ink);margin-bottom:20px}
.p{font-size:15px;color:var(--ink-60);line-height:1.8;margin-bottom:14px;max-width:680px}
.p strong{color:var(--ink);font-weight:500}

/* CARDS */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}
.g3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin:22px 0}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0}
.card{background:var(--white);border-radius:var(--r);padding:22px;border:1px solid var(--border)}
.card-icon{font-size:20px;margin-bottom:10px;display:block}
.card-t{font-family:'Syne',sans-serif;font-size:12px;font-weight:700;color:var(--ink);margin-bottom:8px}
.card-p{font-size:12px;color:var(--ink-60);line-height:1.65}

/* CALLOUT */
.callout{border-left:2.5px solid var(--teal);background:var(--teal-bg);border-radius:0 10px 10px 0;padding:18px 22px;margin:22px 0}
.callout p{font-size:15px;color:#0f5449;font-style:italic;line-height:1.68}

/* STEPS */
.steps{display:flex;flex-direction:column;gap:2px;margin:22px 0}
.step{display:grid;grid-template-columns:48px 1fr;gap:18px;background:var(--white);border:1px solid var(--border);padding:22px 26px;border-radius:4px}
.step:first-child{border-radius:14px 14px 4px 4px}
.step:last-child{border-radius:4px 4px 14px 14px}
.step-n{font-family:'Instrument Serif',serif;font-size:34px;color:var(--teal);font-style:italic;line-height:1;padding-top:3px}
.step-t{font-family:'Syne',sans-serif;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px}
.step-p{font-size:13px;color:var(--ink-60);line-height:1.65}

/* STATS */
.stat-row{display:flex;gap:2px;margin:24px 0}
.stat{flex:1;background:var(--white);border:1px solid var(--border);padding:24px 20px;text-align:center}
.stat:first-child{border-radius:14px 4px 4px 14px}
.stat:last-child{border-radius:4px 14px 14px 4px}
.stat-n{font-family:'Instrument Serif',serif;font-size:42px;color:var(--teal);line-height:1;font-style:italic;letter-spacing:-1px}
.stat-l{font-size:12px;color:var(--ink-60);margin-top:6px;line-height:1.45}

/* MOCKUP */
.mockup{border-radius:16px;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;margin:28px 0;overflow:hidden;position:relative}
.mockup-inner{display:flex;flex-direction:column;align-items:center;gap:12px}
.mockup-label{font-family:'Syne',sans-serif;font-size:10px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.2)}

/* TAGS */
.tags{display:flex;flex-wrap:wrap;gap:6px;margin:18px 0}
.tag{font-family:'Syne',sans-serif;font-size:10px;font-weight:700;letter-spacing:.06em;padding:4px 12px;border-radius:var(--rp);background:var(--surface);color:var(--ink-60);border:1px solid var(--border)}

.divider{border:none;border-top:1px solid var(--border);margin:48px 0}

/* NEXT */
.next-wrap{background:var(--ink);padding:48px 52px}
.next-inner{max-width:960px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.next-label{font-family:'Syne',sans-serif;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.28);margin-bottom:8px}
.next-title{font-family:'Instrument Serif',serif;font-size:26px;color:#fff;letter-spacing:-.3px}
.next-title em{font-style:italic;color:var(--teal-2)}
.next-btn{font-family:'Syne',sans-serif;font-size:12px;font-weight:700;letter-spacing:.05em;padding:12px 28px;background:#fff;color:var(--ink);border-radius:var(--rp);text-decoration:none;transition:all .2s;white-space:nowrap}
.next-btn:hover{background:var(--teal-bg);color:var(--teal);transform:translateY(-1px)}

@media(max-width:900px){
  .case-hero,.case-content,.next-wrap{padding-left:24px;padding-right:24px}
  nav{padding:0 24px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .stat-row{flex-direction:column}
  .stat:first-child,.stat:last-child{border-radius:14px}
  .step{grid-template-columns:38px 1fr}
  .meta-row{gap:24px}
}