/* ============ CASE STUDY — estilo compartilhado ============ */
:root{
  --ink:#16131c;
  --ink-soft:#4a4458;
  --paper:#f6f2ec;
  --paper-2:#efe8df;
  --line:rgba(22,19,28,.12);
  --c:#16131c;              /* cor do projeto, sobrescrita por página */
  --maxw:1080px;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"DM Sans",system-ui,sans-serif;font-size:18px;line-height:1.62;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--c);color:#fff}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:"DM Mono",monospace;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase}

/* topbar */
.topbar{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;background:color-mix(in srgb,var(--paper) 80%, transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar a.back{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:.9rem}
.topbar a.back .ar{transition:transform .4s var(--ease)}
.topbar a.back:hover .ar{transform:translateX(-4px)}
.topbar .brand{font-family:"Fraunces",serif;font-weight:600;font-size:1rem}
.topbar .brand b{font-style:italic;font-weight:500}

/* progress bar */
.prog{position:fixed;top:0;left:0;height:3px;width:0;background:var(--c);z-index:60;transition:width .1s linear}

/* hero */
.c-hero{padding:130px 0 56px;position:relative;overflow:hidden}
.c-hero::before{content:"";position:absolute;z-index:0;width:60vw;height:60vw;border-radius:50%;
  background:var(--c);filter:blur(120px);opacity:.16;top:-20vw;right:-10vw}
.c-hero .wrap{position:relative;z-index:1}
.c-hero .kick{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;color:var(--ink-soft);margin-bottom:24px}
.c-hero .kick .pill{width:9px;height:9px;border-radius:50%;background:var(--c)}
.c-hero h1{font-family:"Fraunces",serif;font-weight:560;font-size:clamp(2.4rem,6.5vw,4.6rem);line-height:1;letter-spacing:-.025em;margin:0 0 22px;max-width:18ch}
.c-hero .tagline{font-size:clamp(1.1rem,2.3vw,1.5rem);color:var(--ink-soft);max-width:60ch;margin:0 0 30px;font-family:"Fraunces",serif;font-style:italic}
.c-hero .tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.c-hero .tags b{font-weight:500;font-size:.75rem;letter-spacing:.02em;padding:6px 14px;border-radius:100px;
  background:color-mix(in srgb,var(--c) 14%, var(--paper));color:color-mix(in srgb,var(--c) 70%, var(--ink))}
.c-hero .live{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9rem;color:var(--c);border:1px solid color-mix(in srgb,var(--c) 35%, var(--line));padding:9px 18px;border-radius:100px;transition:background .35s,color .35s}
.c-hero .live:hover{background:var(--c);color:#fff}
.c-hero .shot{margin-top:48px;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:0 40px 80px -40px rgba(22,19,28,.5)}
.c-hero .shot img{width:100%;display:block}

/* sections */
section.blk{padding:64px 0;border-top:1px solid var(--line)}
.blk .lead-num{font-family:"DM Mono",monospace;font-size:.72rem;letter-spacing:.16em;color:var(--c);text-transform:uppercase}
.blk h2{font-family:"Fraunces",serif;font-weight:560;font-size:clamp(1.7rem,4vw,2.6rem);letter-spacing:-.02em;line-height:1.05;margin:12px 0 26px;max-width:22ch}
.blk .intro{font-size:1.1rem;color:var(--ink-soft);max-width:62ch;margin:0 0 12px}
.statement{font-family:"Fraunces",serif;font-style:italic;font-size:clamp(1.3rem,3vw,1.9rem);line-height:1.3;
  border-left:4px solid var(--c);padding:6px 0 6px 26px;margin:0 0 30px;max-width:48ch}

/* generic list of context */
.ctx{display:grid;gap:12px;margin:24px 0 0;padding:0;list-style:none}
.ctx li{position:relative;padding-left:26px;color:var(--ink-soft)}
.ctx li::before{content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;border-radius:50%;background:var(--c)}

/* CSD grid */
.csd{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.csd .col{background:var(--paper-2);border:1px solid var(--line);border-radius:16px;padding:22px}
.csd .col h4{margin:0 0 12px;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--c);font-family:"DM Mono",monospace}
.csd .col ul{margin:0;padding-left:18px;color:var(--ink-soft);font-size:.95rem;display:grid;gap:8px}
@media(max-width:760px){.csd{grid-template-columns:1fr}}

/* HMW chips */
.hmw{display:grid;gap:12px;margin-top:24px}
.hmw .q{background:color-mix(in srgb,var(--c) 8%, var(--paper));border:1px solid color-mix(in srgb,var(--c) 22%,var(--line));
  border-radius:14px;padding:16px 20px;font-family:"Fraunces",serif;font-size:1.12rem;font-style:italic}
.hmw .q b{font-style:normal;font-weight:600;color:var(--c);font-family:"DM Mono",monospace;font-size:.7rem;letter-spacing:.1em;display:block;margin-bottom:4px}

/* persona */
.persona{display:grid;grid-template-columns:.9fr 1.6fr;gap:34px;align-items:start;margin-top:26px}
.persona .pcard{background:var(--ink);color:var(--paper);border-radius:22px;padding:30px}
.persona .pcard .av{width:64px;height:64px;border-radius:50%;background:var(--c);display:grid;place-items:center;font-family:"Fraunces",serif;font-size:1.7rem;color:#fff;margin-bottom:16px}
.persona .pcard h3{font-family:"Fraunces",serif;font-size:1.6rem;margin:0 0 4px}
.persona .pcard .role{color:rgba(246,242,236,.65);font-size:.9rem;margin-bottom:16px}
.persona .pcard p{color:rgba(246,242,236,.82);font-size:.96rem;margin:0}
.persona .pcols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.persona .pcols h4{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--c);font-family:"DM Mono",monospace;margin:0 0 12px}
.persona .pcols ul{margin:0;padding-left:18px;color:var(--ink-soft);font-size:.95rem;display:grid;gap:8px}
.persona .quote{grid-column:1/-1;font-family:"Fraunces",serif;font-style:italic;font-size:1.25rem;border-left:4px solid var(--c);padding-left:22px;margin-top:8px}
@media(max-width:760px){.persona,.persona .pcols{grid-template-columns:1fr}}

/* jornada */
.jornada{display:grid;gap:0;margin-top:26px;counter-reset:j}
.jornada .step{display:grid;grid-template-columns:auto 1fr;gap:22px;padding:22px 0;border-bottom:1px dashed var(--line)}
.jornada .step:last-child{border-bottom:0}
.jornada .step .ix{counter-increment:j;font-family:"Fraunces",serif;font-size:2rem;color:var(--c);line-height:1;min-width:46px}
.jornada .step .ix::before{content:counter(j,decimal-leading-zero)}
.jornada .step .et{font-weight:600;margin-bottom:2px}
.jornada .step .em{font-family:"DM Mono",monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--c);margin-bottom:8px}
.jornada .step p{margin:0;color:var(--ink-soft);font-size:.97rem}

/* DECISÕES — o coração */
.decs{display:grid;gap:20px;margin-top:28px}
.dec{background:var(--paper-2);border:1px solid var(--line);border-radius:20px;padding:28px 30px;position:relative;overflow:hidden;transition:box-shadow .4s var(--ease),transform .4s var(--ease)}
.dec:hover{box-shadow:0 26px 50px -30px rgba(22,19,28,.4);transform:translateY(-2px)}
.dec::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--c)}
.dec .dn{font-family:"DM Mono",monospace;font-size:.72rem;letter-spacing:.14em;color:var(--c)}
.dec h3{font-family:"Fraunces",serif;font-weight:560;font-size:1.5rem;letter-spacing:-.01em;margin:8px 0 18px}
.dec .grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px}
.dec .grid3 .f .lab{font-family:"DM Mono",monospace;font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:7px}
.dec .grid3 .f.dcs .lab{color:var(--c)}
.dec .grid3 .f p{margin:0;font-size:.96rem;color:var(--ink-soft)}
.dec .grid3 .f.dcs p{color:var(--ink);font-weight:500}
@media(max-width:760px){.dec .grid3{grid-template-columns:1fr;gap:16px}}

/* métricas HEART */
.heart{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:26px}
.heart .h{background:var(--paper-2);border:1px solid var(--line);border-radius:16px;padding:22px}
.heart .h .d{font-family:"Fraunces",serif;font-size:1.2rem;color:var(--c);margin-bottom:8px}
.heart .h .s{font-size:.92rem;color:var(--ink-soft);margin-bottom:10px}
.heart .h .m{font-family:"DM Mono",monospace;font-size:.78rem;color:var(--ink);background:color-mix(in srgb,var(--c) 12%,var(--paper));display:inline-block;padding:4px 10px;border-radius:8px}
@media(max-width:640px){.heart{grid-template-columns:1fr}}

/* resultado */
.car{display:grid;gap:18px;margin-top:26px}
.car .seg{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:baseline;padding-bottom:18px;border-bottom:1px solid var(--line)}
.car .seg:last-child{border-bottom:0}
.car .seg .tag{font-family:"DM Mono",monospace;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--c)}
.car .seg ul{margin:0;padding-left:18px;color:var(--ink-soft);display:grid;gap:7px}
.car .seg p{margin:0;color:var(--ink-soft)}
@media(max-width:640px){.car .seg{grid-template-columns:1fr;gap:8px}}

/* footer next */
.c-foot{padding:70px 0 90px;border-top:1px solid var(--line);text-align:center}
.c-foot .mono{color:var(--ink-soft)}
.c-foot h2{font-family:"Fraunces",serif;font-weight:520;font-size:clamp(1.8rem,5vw,3rem);letter-spacing:-.02em;margin:14px 0 26px}
.c-foot .btn{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--ink);border-radius:100px;padding:13px 26px;font-weight:600;transition:background .35s,color .35s,transform .35s var(--ease)}
.c-foot .btn:hover{background:var(--ink);color:var(--paper);transform:translateY(-3px)}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}