/* ═══════════════════════════════════════════════════
   CA Studio v3 — Case-study driven portfolio
   ═══════════════════════════════════════════════════ */

:root {
  --bg:       #08080A;
  --bg-2:     #0C0C0F;
  --surface:  #111114;
  --border:   #1F1F24;
  --border-2: #2A2A30;
  --text:     #F0EDE6;
  --text-2:   #C8C4BB;
  --muted:    #7A7A82;
  --accent:   #C8A86A;
  --accent-2: #DFC17F;
  --green:    #3DDC84;

  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --serif: "DM Serif Display", Georgia, serif;

  --max: 1180px;
  --ease: cubic-bezier(.16,1,.3,1);
  --radius: 16px;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:0;color:inherit}
ul,ol{list-style:none;padding:0;margin:0}
h1,h2,h3,h4,p,blockquote,figure,dl,dd{margin:0}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:16px;top:16px;padding:10px 14px;background:var(--accent);color:var(--bg);border-radius:8px;z-index:9999}
::selection{background:var(--accent);color:var(--bg)}

/* ── Layout ── */
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
@media(min-width:768px){.wrap{padding:0 40px}}

/* ── Utility ── */
em{font-family:var(--serif);font-style:italic;letter-spacing:-.01em}
.italic{font-family:var(--serif);font-style:italic}


/* ══════ BUTTONS ══════ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 24px;border-radius:999px;
  font-size:14px;font-weight:500;line-height:1;
  white-space:nowrap;border:1px solid transparent;
  transition:transform .3s var(--ease),background .3s var(--ease),border-color .3s var(--ease);
}
.btn--primary{background:var(--text);color:var(--bg)}
.btn--primary:hover{background:#fff;transform:translateY(-2px)}
.btn--ghost{border-color:var(--border-2);color:var(--text)}
.btn--ghost:hover{border-color:var(--text);transform:translateY(-2px)}
.btn--lg{padding:18px 32px;font-size:15px}

/* ══════ HEADER ══════ */
.header{
  position:fixed;inset:0 0 auto;z-index:100;
  padding:16px 0;
  transition:background .3s,backdrop-filter .3s,padding .3s,border-color .3s;
  border-bottom:1px solid transparent;
}
.header.scrolled{
  padding:10px 0;
  background:rgba(8,8,10,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--border);
}
.header__wrap{display:flex;align-items:center;gap:24px}
.logo{
  font-family:var(--serif);font-size:22px;letter-spacing:-.02em;
  display:flex;gap:4px;align-items:baseline;
}
.logo span{font-family:var(--sans);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-left:2px}
.logo--lg{font-size:30px}
.logo--lg span{font-size:13px}

.nav{margin-left:auto;display:flex;gap:28px}
.nav a{font-size:13.5px;color:var(--text-2);transition:color .2s}
.nav a:hover{color:var(--text)}

.header__cta{
  padding:9px 18px;border-radius:999px;font-size:13px;font-weight:500;
  background:var(--text);color:var(--bg);
  transition:background .3s,transform .3s var(--ease);
}
.header__cta:hover{background:#fff;transform:translateY(-1px)}

.burger{display:none;width:38px;height:38px;border-radius:50%;border:1px solid var(--border);position:relative;margin-left:auto}
.burger span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--text);transition:transform .3s var(--ease),top .3s var(--ease)}
.burger span:nth-child(1){top:14px}
.burger span:nth-child(2){top:21px}
.burger.open span:nth-child(1){top:17px;transform:rotate(45deg)}
.burger.open span:nth-child(2){top:17px;transform:rotate(-45deg)}

@media(max-width:840px){
  .nav,.header__cta{display:none}
  .burger{display:flex}
}

/* Mobile nav */
.mobile-nav{
  position:fixed;inset:0;z-index:90;
  background:rgba(8,8,10,.97);backdrop-filter:blur(16px);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .35s var(--ease);
}
.mobile-nav.open{opacity:1;pointer-events:auto}
.mobile-nav nav{display:flex;flex-direction:column;gap:8px;width:100%;max-width:380px;padding:0 24px}
.mobile-nav a{font-family:var(--serif);font-size:28px;padding:14px 0;border-bottom:1px solid var(--border)}
.mobile-nav .btn{margin-top:24px;justify-content:center}


/* ══════ HERO ══════ */
.hero{
  padding:clamp(160px,24vw,240px) 0 clamp(80px,12vw,140px);
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 70% 50% at 70% 10%,rgba(200,168,106,.08),transparent 60%);
  pointer-events:none;
}
.hero__wrap{position:relative;max-width:820px}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border:1px solid var(--border);border-radius:999px;
  font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
  margin-bottom:36px;
}
.hero__h1{
  font-family:var(--sans);
  font-size:clamp(36px,7vw,72px);
  line-height:1.05;letter-spacing:-.035em;font-weight:400;
  margin-bottom:28px;
}
.hero__h1 em{font-size:1em;color:var(--accent)}
.hero__sub{
  font-size:clamp(16px,1.6vw,19px);line-height:1.55;
  color:var(--text-2);max-width:600px;margin-bottom:40px;
}
.hero__ctas{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:56px}
.hero__proof{
  display:flex;flex-wrap:wrap;gap:32px;
  padding-top:28px;border-top:1px solid var(--border);
  font-size:13px;color:var(--text-2);
}
.hero__proof strong{
  display:block;font-family:var(--serif);font-size:28px;
  font-weight:400;color:var(--text);line-height:1;margin-bottom:4px;
}

/* ══════ STATEMENT ══════ */
.statement{
  padding:clamp(60px,10vw,120px) 0;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  background:var(--bg-2);
}
.statement__quote{
  font-family:var(--serif);font-size:clamp(22px,3.6vw,40px);
  line-height:1.25;letter-spacing:-.02em;text-align:center;
  max-width:860px;margin:0 auto;color:var(--text);
}
.statement__quote em{color:var(--accent)}
.statement__quote p{margin:0}


/* ══════ SECTION HEADS ══════ */
.sec-head{
  display:flex;gap:24px;align-items:flex-start;margin-bottom:64px;
}
.sec-head__num{
  font-family:var(--serif);font-style:italic;
  font-size:48px;line-height:1;color:var(--accent);opacity:.5;
  flex-shrink:0;
}
.sec-head__title{
  font-family:var(--serif);font-size:clamp(28px,4vw,44px);
  line-height:1.1;letter-spacing:-.02em;margin-bottom:12px;
}
.sec-head__sub{
  font-size:clamp(15px,1.4vw,17px);color:var(--text-2);
  max-width:540px;line-height:1.55;
}

/* ══════ CASES ══════ */
.cases{padding:clamp(100px,14vw,180px) 0}
.case{
  position:relative;
  margin-bottom:clamp(80px,12vw,140px);
  padding:clamp(36px,5vw,64px);
  border-radius:var(--radius);
  border:1px solid var(--border);
  background:var(--surface);
  overflow:hidden;
  transition:border-color .4s var(--ease);
}
.case:hover{border-color:var(--border-2)}

.case__badge{
  position:absolute;top:0;left:clamp(28px,4vw,56px);
  padding:6px 14px;
  background:var(--accent);color:var(--bg);
  font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  border-radius:0 0 8px 8px;
}

.case__inner{
  display:grid;grid-template-columns:1.2fr .8fr;
  gap:clamp(32px,5vw,80px);align-items:center;
}
.case--flip .case__inner{grid-template-columns:.8fr 1.2fr}
.case--flip .case__visual{order:-1}

@media(max-width:860px){
  .case__inner,.case--flip .case__inner{grid-template-columns:1fr}
  .case--flip .case__visual{order:0}
}

.case__meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin-bottom:12px}
.case__niche{color:var(--accent)}
.case__dot{color:var(--border-2)}

.case__name{
  font-family:var(--serif);font-size:clamp(36px,5vw,56px);
  line-height:1;letter-spacing:-.02em;margin-bottom:16px;
}

.case__hook{
  font-size:clamp(16px,1.5vw,19px);color:var(--text);
  line-height:1.4;font-weight:400;margin-bottom:32px;
  padding-left:16px;border-left:2px solid var(--accent);
}

.case__narrative{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}
.case__block{display:flex;flex-direction:column;gap:6px}
.case__label{
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);font-weight:500;
}
.case__block p{font-size:15px;color:var(--text-2);line-height:1.6;max-width:480px}

.case__specs{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  padding:20px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  margin-bottom:28px;
}
.case__specs > div{display:flex;flex-direction:column;gap:4px}
.case__specs dt{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.case__specs dd{font-size:13.5px;color:var(--text)}
@media(max-width:560px){.case__specs{grid-template-columns:1fr 1fr}}

.case__cta{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--text);
  padding-bottom:4px;border-bottom:1px solid var(--border);
  transition:gap .3s var(--ease),border-color .3s,color .3s;
}
.case__cta:hover{gap:12px;border-color:var(--accent);color:var(--accent)}

.cases__end{
  text-align:center;padding-top:40px;border-top:1px solid var(--border);
}
.cases__end p{font-family:var(--serif);font-size:clamp(20px,2.6vw,28px);margin-bottom:24px;line-height:1.3}


/* ══════ PHONE MOCKUP ══════ */
.case__visual{
  display:flex;justify-content:center;
  perspective:1200px;
}
.phone{
  width:clamp(220px,26vw,280px);
  aspect-ratio:9/19.5;
  border-radius:32px;
  background:linear-gradient(180deg,#1c1c20,#0a0a0c);
  padding:6px;
  border:1.5px solid #2a2a2e;
  box-shadow:0 50px 80px -30px rgba(0,0,0,.7),0 20px 40px -15px rgba(0,0,0,.5);
  position:relative;
  transform:rotate3d(0,1,0,-8deg) rotate3d(1,0,0,3deg);
  transition:transform .8s var(--ease);
}
.case--flip .phone{transform:rotate3d(0,1,0,8deg) rotate3d(1,0,0,3deg)}
.phone:hover{transform:rotate3d(0,1,0,-2deg) rotate3d(1,0,0,1deg) translateY(-6px)}
.case--flip .phone:hover{transform:rotate3d(0,1,0,2deg) rotate3d(1,0,0,1deg) translateY(-6px)}

.phone__notch{
  position:absolute;top:12px;left:50%;transform:translateX(-50%);
  width:90px;height:22px;background:#000;border-radius:12px;z-index:3;
}
.phone__screen{
  height:100%;border-radius:26px;overflow:hidden;
  display:flex;flex-direction:column;padding:0;
  position:relative;
}

/* ── Shared phone screen internals ── */
.pscreen__nav{
  display:flex;justify-content:space-between;align-items:center;
  padding:42px 16px 10px;font-size:13px;
}
.pscreen__nav span:last-child{opacity:.6;font-size:16px}
.pscreen__hero{
  display:flex;flex-direction:column;gap:8px;
  padding:20px 16px 24px;
  border-radius:14px;margin:0 10px;position:relative;overflow:hidden;
}
.pscreen__hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at 60% 0%,rgba(255,255,255,.08),transparent 60%);
  pointer-events:none;
}
.pscreen__hero small{
  font-size:8px;letter-spacing:.16em;opacity:.7;
  position:relative;z-index:1;
}
.pscreen__hero h4{
  font-family:var(--serif);font-size:18px;line-height:1.1;
  letter-spacing:-.02em;position:relative;z-index:1;
}
.pscreen__btn{
  display:inline-flex;align-self:flex-start;
  padding:8px 14px;border-radius:999px;
  font-size:10px;font-weight:500;margin-top:4px;
  position:relative;z-index:1;
  background:var(--green);color:#000;
}
.pscreen__btn--gold{background:var(--accent);color:#000}
.pscreen__btn--warm{background:#E8D5B0;color:#1A1100}
.pscreen__btn--light{background:#fff;color:#111}
.pscreen__btn--blue{background:#7EC4DE;color:#061E28}

.pscreen__list{
  display:flex;flex-direction:column;margin:12px 10px 0;
  border:1px solid rgba(255,255,255,.08);border-radius:12px;overflow:hidden;
}
.pscreen__list > div{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 14px;font-size:10.5px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.pscreen__list > div:last-child{border-bottom:0}
.pscreen__list b{font-weight:500}

.pscreen__grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  padding:12px 10px 0;
}
.pscreen__grid > div{
  text-align:center;padding:10px 4px;
  border:1px solid rgba(255,255,255,.08);border-radius:10px;
}
.pscreen__grid b{display:block;font-family:var(--serif);font-size:14px;margin-bottom:4px}
.pscreen__grid small{font-size:8px;opacity:.5;text-transform:uppercase;letter-spacing:.06em}
.pscreen__grid--optic{grid-template-columns:1fr 1fr}
.pscreen__grid--optic > div{
  aspect-ratio:1.3;background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);border-radius:10px;position:relative;overflow:hidden;
}
.pscreen__grid--optic > div::after{
  content:"";position:absolute;top:50%;left:20%;width:60%;height:20%;
  border:1.5px solid rgba(255,255,255,.4);border-radius:50%;transform:translateY(-50%);
}

.pscreen__slots{
  display:grid;grid-template-columns:repeat(3,1fr);gap:6px;
  padding:12px 10px 0;
}
.pscreen__slots span{
  text-align:center;padding:8px 4px;font-size:10px;font-weight:500;
  border:1px solid rgba(255,255,255,.15);border-radius:8px;
}
.pscreen__slots .off{opacity:.3;text-decoration:line-through}

/* Theme per niche */
.phone__screen--pizza{background:linear-gradient(180deg,#2A1410,#140908);color:#F4E5D6}
.phone__screen--pizza .pscreen__hero{background:linear-gradient(135deg,#4A1F15,#2A1006)}
.phone__screen--pizza .pscreen__nav span:first-child{font-family:var(--serif);font-style:italic;color:#F2D5A8}

.phone__screen--gym{background:linear-gradient(180deg,#0E1818,#060D0E);color:#DFE9E6}
.phone__screen--gym .pscreen__hero{background:linear-gradient(135deg,#112824,#07120F);border:1px solid rgba(200,168,106,.15)}
.phone__screen--gym .pscreen__nav span:first-child{letter-spacing:.14em;font-size:11px;font-weight:600}

.phone__screen--barber{background:linear-gradient(180deg,#1A140C,#0D0903);color:#EFE3CF}
.phone__screen--barber .pscreen__hero{background:linear-gradient(135deg,#2D2014,#15100A)}
.phone__screen--barber .pscreen__nav span:first-child{font-family:var(--serif);font-style:italic;font-size:14px;color:#DDB87A}

.phone__screen--optic{background:linear-gradient(180deg,#11141C,#07080C);color:#E2E4EA}
.phone__screen--optic .pscreen__hero{background:linear-gradient(135deg,#1E2434,#0E1219)}

.phone__screen--tech{background:linear-gradient(180deg,#0C141E,#050810);color:#DCE3EC}
.phone__screen--tech .pscreen__hero{background:linear-gradient(135deg,#102234,#061321)}
.phone__screen--tech .pscreen__nav span:first-child{color:#7EB7DE;font-weight:600}


/* ══════ METHOD ══════ */
.method{
  padding:clamp(100px,14vw,180px) 0;
  border-top:1px solid var(--border);
  background:var(--bg-2);
}
.steps{display:flex;flex-direction:column}
.step{
  display:grid;grid-template-columns:60px 1fr auto;gap:24px;
  padding:28px 0;border-bottom:1px solid var(--border);
  align-items:baseline;
  transition:padding .3s var(--ease);
}
.step:hover{padding-left:8px}
.step__num{
  font-family:var(--serif);font-style:italic;font-size:20px;
  color:var(--accent);
}
.step__body h3{
  font-family:var(--serif);font-size:clamp(20px,2.6vw,28px);
  letter-spacing:-.02em;margin-bottom:6px;
}
.step__body p{font-size:15px;color:var(--text-2);line-height:1.55;max-width:520px}
.step__time{
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  padding:5px 12px;border:1px solid var(--border);border-radius:999px;white-space:nowrap;
}
@media(max-width:640px){
  .step{grid-template-columns:1fr;gap:8px}
  .step__time{justify-self:start;margin-top:4px}
}

/* ══════ WHY (DIFERENCIAIS) ══════ */
.why{padding:clamp(100px,14vw,180px) 0}
.diffs{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
}
@media(max-width:800px){.diffs{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.diffs{grid-template-columns:1fr}}
.diff{
  padding:36px 28px;background:var(--bg);
  transition:background .35s var(--ease);
}
.diff:hover{background:var(--surface)}
.diff h3{
  font-family:var(--serif);font-size:22px;letter-spacing:-.01em;
  margin-bottom:10px;
}
.diff p{font-size:14.5px;color:var(--text-2);line-height:1.55}

/* ══════ CTA FINAL ══════ */
.cta{
  padding:clamp(100px,16vw,200px) 0;
  position:relative;overflow:hidden;
  border-top:1px solid var(--border);
  background:linear-gradient(180deg,var(--bg),#050506);
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 60% at 50% 90%,rgba(200,168,106,.16),transparent 70%);
  pointer-events:none;
}
.cta__wrap{position:relative;text-align:center;max-width:780px}
.cta__pre{
  display:inline-block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin-bottom:20px;
}
.cta__title{
  font-family:var(--serif);font-size:clamp(36px,6vw,72px);
  line-height:1.05;letter-spacing:-.03em;margin-bottom:20px;
}
.cta__title em{color:var(--accent)}
.cta__sub{
  font-size:clamp(15px,1.4vw,18px);color:var(--text-2);
  max-width:540px;margin:0 auto 40px;line-height:1.6;
}
.cta__btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.cta__trust{
  display:flex;gap:20px;justify-content:center;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted);
}
.cta__trust li{position:relative;padding-left:14px}
.cta__trust li::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--green);
}

/* ══════ FOOTER ══════ */
.footer{
  border-top:1px solid var(--border);padding:64px 0 28px;
  background:var(--bg-2);
}
.footer__wrap{display:flex;flex-wrap:wrap;gap:40px 80px;margin-bottom:48px}
.footer__brand{max-width:360px}
.footer__brand p{margin-top:14px;font-size:14.5px;color:var(--text-2);line-height:1.5}
.footer__links{display:flex;gap:56px}
.footer__links h4{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.footer__links div{display:flex;flex-direction:column;gap:8px}
.footer__links a{font-size:14px;color:var(--text-2);transition:color .2s}
.footer__links a:hover{color:var(--accent)}
.footer__copy{
  width:100%;padding-top:24px;border-top:1px solid var(--border);
  font-size:12px;color:var(--muted);
}

/* ══════ WHATSAPP FLOAT ══════ */
.wpp-float{
  position:fixed;bottom:20px;right:20px;z-index:80;
  width:54px;height:54px;border-radius:50%;
  background:var(--text);color:var(--bg);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 30px rgba(0,0,0,.5);
  transition:transform .3s var(--ease),background .3s;
}
.wpp-float:hover{transform:translateY(-3px);background:var(--accent)}

/* ══════ REVEAL ══════ */
.reveal{
  opacity:0;transform:translateY(24px);
  transition:opacity .9s var(--ease),transform .9s var(--ease);
}
.reveal.visible{opacity:1;transform:translateY(0)}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}