/* ============ Design tokens ============ */
:root{
  --bg: #0b0f17;
  --bg-2: #0f1422;
  --surface: #131a2a;
  --surface-2: #1a2236;
  --border: rgba(255,255,255,.08);
  --text: #e7ecf3;
  --muted: #9aa4b8;
  --primary: #8b5cf6;
  --primary-2: #06b6d4;
  --accent: #f59e0b;
  --grad: linear-gradient(135deg,#8b5cf6 0%,#06b6d4 100%);
  --shadow-lg: 0 30px 80px -20px rgba(0,0,0,.6);
  --radius: 16px;
  --radius-lg: 24px;
  --container: 1200px;
  --ease: cubic-bezier(.2,.7,.2,1);
}
body[data-theme="light"]{
  --bg:#f7f8fb; --bg-2:#eef1f7; --surface:#fff; --surface-2:#f3f5fa;
  --border:rgba(10,15,25,.08); --text:#0f1422; --muted:#5b6478;
  --shadow-lg:0 30px 80px -30px rgba(20,30,60,.25);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:'Sora',Inter,sans-serif;line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.4rem,5.4vw,4.6rem);font-weight:800}
h2{font-size:clamp(1.8rem,3.2vw,2.6rem);font-weight:700}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em;color:var(--text)}
.muted{color:var(--muted)}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* skip link */
.skip{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:8px 14px;border-radius:8px;z-index:99}
.skip:focus{left:16px;top:16px}

/* ============ NAV ============ */
.nav{
  position:sticky;top:16px;z-index:50;padding:0 16px;
}
.nav__inner{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:16px;justify-content:space-between;
  background:color-mix(in oklab,var(--surface) 80%,transparent);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border);
  padding:10px 14px 10px 18px;
  border-radius:999px;
  box-shadow:0 10px 30px -15px rgba(0,0,0,.5);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em}
.brand__dot{width:10px;height:10px;border-radius:50%;background:var(--grad);box-shadow:0 0 18px var(--primary)}
.brand__accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav__links{display:flex;gap:6px}
.nav__links a{
  padding:8px 14px;border-radius:999px;font-size:.92rem;color:var(--muted);
  transition:color .2s,background .2s;
}
.nav__links a:hover{color:var(--text);background:var(--surface-2)}
.nav__actions{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface-2);border:1px solid var(--border);color:var(--text);cursor:pointer;transition:.2s;
}
.icon-btn:hover{transform:translateY(-1px);border-color:var(--primary)}
.icon-btn svg{width:18px;height:18px}
.i-moon{display:none}
body[data-theme="light"] .i-sun{display:none}
body[data-theme="light"] .i-moon{display:block}
.menu-btn{display:none}
.nav__mobile{display:none}

@media (max-width: 880px){
  .nav__links,.nav__cta{display:none}
  .menu-btn{display:inline-flex}
  .nav__mobile{
    display:flex;flex-direction:column;gap:4px;
    margin:10px 16px 0;padding:12px;
    background:var(--surface);border:1px solid var(--border);border-radius:18px;
  }
  .nav__mobile a{padding:10px 14px;border-radius:10px;color:var(--muted)}
  .nav__mobile a:hover{background:var(--surface-2);color:var(--text)}
  .nav__mobile[hidden]{display:none}
}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s,background .2s;
}
.btn svg{width:16px;height:16px}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px -10px color-mix(in oklab,var(--primary) 60%,transparent)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px -10px color-mix(in oklab,var(--primary) 70%,transparent)}
.btn--ghost{background:var(--surface-2);color:var(--text);border-color:var(--border)}
.btn--ghost:hover{border-color:var(--primary);transform:translateY(-2px)}
.btn--lg{padding:16px 28px;font-size:1.05rem}

/* ============ HERO ============ */
.hero{position:relative;padding:80px 0 100px;overflow:hidden}
.hero__bg{position:absolute;inset:0;pointer-events:none;z-index:0}
.blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5}
.blob--a{width:520px;height:520px;background:#8b5cf6;top:-120px;left:-120px}
.blob--b{width:480px;height:480px;background:#06b6d4;bottom:-160px;right:-100px}
body[data-theme="light"] .blob{opacity:.35}
.grid-overlay{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at center,black 30%,transparent 70%);
}
.hero__inner{position:relative;z-index:1;text-align:center;max-width:880px}
.chip{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:.82rem;font-weight:500;
  background:var(--surface);border:1px solid var(--border);color:var(--muted);margin-bottom:24px;
}
.hero__title .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{font-size:clamp(1rem,1.4vw,1.2rem);color:var(--muted);max-width:600px;margin:0 auto 32px}
.hero__cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:60px}
.hero__stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:600px;margin:0 auto;
  padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
}
.hero__stats dt{font-family:'Sora',sans-serif;font-size:1.8rem;font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__stats dd{margin:4px 0 0;font-size:.85rem;color:var(--muted)}

/* ============ SECTIONS ============ */
.section{padding:100px 0;position:relative}
.section--alt{background:var(--bg-2)}
.section__head{text-align:center;max-width:680px;margin:0 auto 56px}
.eyebrow{
  display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);margin-bottom:12px;
}

/* two-col */
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
@media (max-width:880px){.two-col{grid-template-columns:1fr;gap:40px}}
.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* portrait */
.portrait{position:relative}
.portrait__frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:4/5;background:var(--surface);
  box-shadow:var(--shadow-lg);
  border:1px solid var(--border);
}
.portrait__frame::before{
  content:"";position:absolute;inset:-2px;border-radius:inherit;
  background:var(--grad);z-index:-1;filter:blur(20px);opacity:.6;
}
.portrait__frame img{width:100%;height:100%;object-fit:cover;object-position:center top}
.portrait__badge{
  position:absolute;bottom:20px;left:20px;display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;background:var(--surface);border:1px solid var(--border);border-radius:999px;
  font-size:.85rem;font-weight:500;backdrop-filter:blur(8px);
}
.portrait__badge .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 10px #22c55e;animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.5}}

/* ============ SKILLS ============ */
.skills{
  list-style:none;padding:0;margin:0;
  display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;
}
.skills li{
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:18px;text-align:center;font-weight:500;
  transition:.25s var(--ease);position:relative;overflow:hidden;
}
.skills li::before{
  content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:.25s;
}
.skills li span{position:relative;z-index:1}
.skills li:hover{transform:translateY(-4px);border-color:transparent;color:#fff}
.skills li:hover::before{opacity:1}

/* ============ TIMELINE / TABS ============ */
.tabs{display:inline-flex;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:4px;margin:0 auto 40px;display:flex;width:fit-content}
.tab{
  padding:10px 22px;border-radius:999px;border:none;background:transparent;color:var(--muted);
  font-weight:600;font-size:.92rem;cursor:pointer;transition:.2s;font-family:inherit;
}
.tab.is-active{background:var(--grad);color:#fff}
.timeline{position:relative;display:grid;gap:20px;max-width:780px;margin:0 auto;padding-left:32px}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--border);
}
.t-item{
  position:relative;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:22px 24px;
}
.t-item::before{
  content:"";position:absolute;left:-32px;top:28px;width:14px;height:14px;border-radius:50%;
  background:var(--grad);box-shadow:0 0 0 4px var(--bg);
}
.t-item time{font-size:.78rem;font-weight:600;color:var(--primary);letter-spacing:.1em;text-transform:uppercase}
.t-item h3{margin:6px 0 4px}
.t-item p{margin:0;color:var(--muted)}

/* ============ PROJETOS ============ */
.projects{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.project{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;transition:.3s var(--ease);display:flex;flex-direction:column;
}
.project:hover{transform:translateY(-6px);border-color:var(--primary);box-shadow:var(--shadow-lg)}
.project__img{aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.project__img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.project:hover .project__img img{transform:scale(1.06)}
.project__body{padding:20px}
.project__body h3{margin-bottom:6px}
.project__body p{color:var(--muted);font-size:.92rem;margin-bottom:12px}
.project__link{font-size:.88rem;font-weight:600;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ============ SERVIÇOS ============ */
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.service{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;transition:.3s var(--ease);
}
.service:hover{transform:translateY(-4px);border-color:var(--primary)}
.service__icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--surface-2);margin-bottom:14px;
  color:var(--primary);transition:.3s var(--ease);
}
.service__icon svg{width:22px;height:22px}
.service:hover .service__icon{background:color-mix(in oklab,var(--primary) 15%,transparent);color:var(--primary-2)}
.service h3{margin-bottom:6px}
.service p{color:var(--muted);margin:0;font-size:.95rem}

/* ============ CTA ============ */
.cta{padding:80px 0}
.cta__inner{
  text-align:center;background:var(--grad);border-radius:32px;
  padding:60px 32px;color:#fff;position:relative;overflow:hidden;
}
.cta__inner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.2),transparent 50%);
}
.cta__inner > *{position:relative}
.cta h2{color:#fff;margin-bottom:8px}
.cta p{color:rgba(255,255,255,.85);margin-bottom:28px}
.cta .btn--primary{background:#fff;color:var(--primary);box-shadow:0 16px 40px -10px rgba(0,0,0,.3)}

/* ============ FOOTER ============ */
.footer{padding:50px 0 30px;border-top:1px solid var(--border);background:var(--bg-2)}
.footer__inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:24px}
.footer__social{display:flex;gap:18px;flex-wrap:wrap}
.footer__social a{color:var(--muted);font-size:.92rem;transition:.2s;display:inline-flex;align-items:center;gap:6px}
.footer__social a svg{width:15px;height:15px;flex-shrink:0}
.footer__social a:hover{color:var(--text)}
.footer__copy{text-align:center;color:var(--muted);font-size:.82rem;margin:0}

/* ============ WHATSAPP FAB ============ */
.whatsapp-fab{
  position:fixed;right:24px;bottom:24px;width:60px;height:60px;border-radius:50%;
  background:#25D366;color:#fff;display:grid;place-items:center;z-index:60;
  box-shadow:0 4px 16px rgba(37,211,102,.45), 0 0 0 0 rgba(37,211,102,.4);
  transition:transform .25s var(--ease), box-shadow .25s;
  animation:fab-pulse 2.8s infinite;
}
.whatsapp-fab:hover{transform:translateY(-3px) scale(1.07);box-shadow:0 8px 28px rgba(37,211,102,.6)}
.whatsapp-fab svg{width:30px;height:30px}
@keyframes fab-pulse{
  0%,100%{box-shadow:0 4px 16px rgba(37,211,102,.45), 0 0 0 0 rgba(37,211,102,.35)}
  60%{box-shadow:0 4px 16px rgba(37,211,102,.45), 0 0 0 12px rgba(37,211,102,.0)}
}

/* ============ REVEAL ANIMATION ============ */
.reveal{opacity:0;transform:translateY(20px);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;transition:none}
  *{animation:none!important;transition:none!important}
}