/* ========================================================================== 
   Davi Waltz — site pessoal
   Arquivo único de estilos. Não depende de framework nem de CDN.
   ========================================================================== */

:root{
  --bg:#0b1220;
  --bg-alt:#0f1829;
  --surface:#131d31;
  --surface-2:#1a2640;
  --text:#e8eefb;
  --muted:#9aa8c0;
  --accent:#e0a63c;
  --accent-soft:rgba(224,166,60,.12);
  --border:rgba(255,255,255,.09);
  --radius:14px;
  --maxw:1120px;
  --font-sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-serif:"Playfair Display",Georgia,"Times New Roman",serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:88px 0}
.section--alt{background:var(--bg-alt)}
.eyebrow{
  color:var(--accent);font-size:12px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;margin-bottom:12px;
}
h1,h2,h3{font-family:var(--font-serif);font-weight:700;line-height:1.15}
h2{font-size:clamp(28px,4vw,40px);margin-bottom:16px}
h3{font-size:20px;margin-bottom:8px}
.lead{color:var(--muted);font-size:17px;max-width:62ch}

/* ---------- header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(11,18,32,.82);backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
.header.is-scrolled{border-bottom-color:var(--border)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-family:var(--font-serif);font-size:20px;letter-spacing:.02em}
.logo span{color:var(--accent)}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-size:14px;color:var(--muted);transition:color .2s}
.nav a:hover,.nav a:focus-visible{color:var(--text)}

.lang{display:flex;gap:2px;border:1px solid var(--border);border-radius:999px;padding:3px}
.lang button{
  background:none;border:0;color:var(--muted);cursor:pointer;
  font:inherit;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
}
.lang button[aria-pressed="true"]{background:var(--accent);color:#1a1205}

.burger{display:none;background:none;border:0;color:var(--text);cursor:pointer;padding:8px}
.burger svg{width:24px;height:24px}

.mobile-nav{display:none;border-top:1px solid var(--border);background:var(--bg)}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:block;padding:14px 20px;color:var(--muted);border-bottom:1px solid var(--border)}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .15s,opacity .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--accent);color:#1a1205}
.btn--ghost{border-color:var(--border);color:var(--text)}

/* ---------- hero ---------- */
.hero{
  min-height:92vh;display:flex;align-items:center;
  padding:120px 0 72px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(900px 480px at 78% 12%,rgba(224,166,60,.10),transparent 62%);
}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,5.4vw,58px);margin-bottom:20px}
.hero h1 em{color:var(--accent);font-style:normal}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.hero__photo{
  border-radius:var(--radius);border:1px solid var(--border);
  aspect-ratio:4/5;object-fit:cover;width:100%;
}

/* ---------- números ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:64px}
.stat{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;text-align:center;
}
.stat__num{font-family:var(--font-serif);font-size:32px;color:var(--accent);line-height:1}
.stat__label{font-size:12px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin-top:8px}

/* ---------- sobre ---------- */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.about p+p{margin-top:16px}
.about p{color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.chip{
  font-size:12px;padding:6px 12px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);border:1px solid rgba(224,166,60,.22);
}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:28px;margin-top:8px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--border)}
.tl{position:relative;padding-bottom:36px}
.tl:last-child{padding-bottom:0}
.tl::before{
  content:"";position:absolute;left:-26px;top:7px;width:12px;height:12px;
  border-radius:50%;background:var(--accent);border:3px solid var(--bg);
}
.tl__period{font-size:12px;color:var(--accent);letter-spacing:.1em;text-transform:uppercase}
.tl__role{font-family:var(--font-serif);font-size:19px;margin:4px 0 2px}
.tl__org{font-size:14px;color:var(--muted);margin-bottom:10px}
.tl__desc{color:var(--muted);font-size:15px}

/* ---------- cards / portfólio ---------- */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0 32px}
.filters button{
  background:none;border:1px solid var(--border);color:var(--muted);
  font:inherit;font-size:13px;padding:8px 16px;border-radius:999px;cursor:pointer;transition:.2s;
}
.filters button[aria-pressed="true"]{background:var(--accent);color:#1a1205;border-color:var(--accent)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:20px}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;display:flex;flex-direction:column;gap:10px;transition:border-color .2s,transform .2s;
}
.card:hover{border-color:rgba(224,166,60,.4);transform:translateY(-3px)}
.card__tag{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.card__desc{color:var(--muted);font-size:15px;flex:1}
.card__meta{font-size:13px;color:var(--muted);border-top:1px solid var(--border);padding-top:12px;margin-top:4px}
.card.is-hidden{display:none}

/* ---------- recomendações ---------- */
.quote{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;display:flex;flex-direction:column;gap:16px;
}
.quote__text{color:var(--muted);font-size:15px;font-style:italic}
.quote__who{display:flex;align-items:center;gap:12px}
.quote__avatar{
  width:42px;height:42px;border-radius:50%;background:var(--accent-soft);
  color:var(--accent);display:grid;place-items:center;font-weight:700;font-size:14px;flex-shrink:0;
}
.quote__name{font-weight:600;font-size:15px}
.quote__role{font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}

/* ---------- formação ---------- */
.edu{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.edu__item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.edu__title{font-size:15px;font-weight:600;margin-bottom:4px}
.edu__org{font-size:13px;color:var(--muted)}

/* ---------- contato ---------- */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.contact__list{margin-top:28px;display:flex;flex-direction:column;gap:18px}
.contact__row{display:flex;gap:14px;align-items:flex-start}
.contact__icon{
  width:38px;height:38px;border-radius:10px;background:var(--accent-soft);
  color:var(--accent);display:grid;place-items:center;flex-shrink:0;
}
.contact__icon svg{width:18px;height:18px}
.contact__label{font-size:12px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.contact__value{font-size:15px}

form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg);border:1px solid var(--border);border-radius:10px;
  color:var(--text);font:inherit;font-size:15px;padding:12px 14px;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:1px}
.field textarea{min-height:120px;resize:vertical}
.form__status{margin-top:12px;font-size:14px;min-height:20px}
.form__status.ok{color:#5fd39a}
.form__status.err{color:#f08a8a}
.hp{position:absolute;left:-9999px;opacity:0}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--border);padding:36px 0;background:var(--bg-alt)}
.footer__inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.footer small{color:var(--muted);font-size:13px}
.social{display:flex;gap:10px}
.social a{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  display:grid;place-items:center;color:var(--muted);transition:.2s;
}
.social a:hover{color:var(--accent);border-color:var(--accent)}
.social svg{width:18px;height:18px}

/* ---------- acessibilidade ---------- */
.skip{
  position:absolute;left:-9999px;top:0;background:var(--accent);color:#1a1205;
  padding:10px 16px;z-index:100;border-radius:0 0 8px 0;
}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- responsivo ---------- */
@media (max-width:900px){
  .hero__grid,.about,.contact{grid-template-columns:1fr}
  .hero__photo{max-width:320px;margin:0 auto}
  .stats{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
  .burger{display:block}
  .section{padding:64px 0}
}
@media (max-width:480px){
  .stats{grid-template-columns:1fr}
  .hero{min-height:auto;padding:104px 0 56px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}