:root{
  --rk-bg:#0b0e13;
  --rk-panel:#151924;
  --rk-panel-2:#111521;
  --rk-text:#e8ecf8;
  --rk-muted:#adbbd7;
  --rk-border:rgba(255,255,255,.10);
  --rk-accent:#7b5cff;
  --rk-accent-2:#3be7ff;
  --rk-maxw:1200px;
  --rk-r:14px;
  --rk-ring:0 0 0 2px rgba(59,231,255,.25), 0 6px 18px rgba(0,0,0,.35);
  --rk-card-min:240px;
  --rk-grid-gap:16px
}
@media (prefers-color-scheme: light){
  :root{
    --rk-bg:#f5f7fb;--rk-panel:#ffffff;--rk-panel-2:#eef2f8;
    --rk-text:#10121a;--rk-muted:#4b5161;--rk-border:rgba(0,0,0,.12)
  }
}
@media (max-width:360px){ :root{ --rk-card-min:200px } }

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:
    radial-gradient(1100px 900px at 8% -10%, rgba(123,92,255,.24), transparent 40%) no-repeat,
    radial-gradient(800px 600px at 92% -18%, rgba(59,231,255,.22), transparent 50%) no-repeat,
    var(--rk-bg);
  color:var(--rk-text);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  -webkit-tap-highlight-color:transparent
}
.container{width:min(92vw,var(--rk-maxw)); margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{
  position:fixed;inset:auto auto auto 12px;width:auto;height:auto;background:var(--rk-panel);
  color:var(--rk-text);padding:10px 12px;border-radius:8px;border:1px solid var(--rk-border);
  box-shadow:var(--rk-ring);z-index:1
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}

.site-header{padding:18px 0 0}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:linear-gradient(180deg, rgba(11,14,19,.92), rgba(11,14,19,.65));
  border:1px solid var(--rk-border);border-radius:52px;padding:10px 14px;
  box-shadow:0 6px 20px rgba(0,0,0,.28);
  position:sticky;top:8px;z-index:10;backdrop-filter:saturate(1.2) blur(10px)
}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{height:28px;filter:drop-shadow(0 4px 12px rgba(0,0,0,.35))}
.brand-text h1{margin:0;font-size:14px;letter-spacing:.12em;font-weight:800}
.brand-text p{margin:0;font-size:11px;opacity:.8;letter-spacing:.18em;font-weight:600}
.site-nav{display:flex;gap:8px;align-items:center}
.nav-link{
  padding:6px 10px;border-radius:999px;border:1px solid transparent;
  text-transform:uppercase;font-weight:800;font-size:12px;opacity:.9
}
.nav-link:hover{background:rgba(255,255,255,.06);opacity:1}
.nav-link.is-active{background:rgba(123,92,255,.22);box-shadow:var(--rk-ring)}

.hero{ text-align:center;padding:48px 0 8px }
.hero h2{ margin:8px 0 6px;font-size:clamp(22px,3.2vw,36px);font-weight:800;letter-spacing:.02em }
.hero p{ margin:0 0 16px;color:var(--rk-muted);font-weight:600 }

.btn{
  border-radius:12px;border:1px solid var(--rk-border);
  background:var(--rk-panel);color:var(--rk-text);
  padding:10px 12px;font-weight:800;letter-spacing:.02em
}
.btn-sm{padding:8px 10px;font-size:12px}
.btn-primary{background:linear-gradient(135deg,var(--rk-accent),var(--rk-accent-2));border-color:transparent;color:#fff}
.btn-secondary{background:var(--rk-panel-2)}
.btn:focus-visible{outline:none;box-shadow:var(--rk-ring)}

.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.input,.select{
  appearance:none;background:var(--rk-panel);color:var(--rk-text);
  border:1px solid var(--rk-border);border-radius:10px;padding:10px 12px
}
.input{min-width:280px}
.select{min-width:140px}
@media (max-width:560px){ .input,.select{min-width:unset;flex:1 1 100%} }

.tags-bar{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 18px}
.tag-btn{
  padding:6px 10px;border-radius:999px;border:1px solid var(--rk-border);
  background:var(--rk-panel-2);font-weight:700;font-size:12px;opacity:.9;cursor:pointer
}
.tag-btn[aria-pressed="true"]{ background:rgba(123,92,255,.22); box-shadow:var(--rk-ring) }

/* ---------------- Grid & Cards (melhorado) ---------------- */
.grid{
  display:grid;gap:var(--rk-grid-gap);align-items:stretch;
  grid-template-columns: repeat(auto-fit, minmax(var(--rk-card-min), 1fr))
}
@media (min-width:1200px){
  .grid{grid-template-columns:repeat(4, minmax(0,1fr))}
}

.card{
  background:var(--rk-panel);border:1px solid var(--rk-border);border-radius:var(--rk-r);
  display:flex;flex-direction:column;min-height:350px;height:100%;
  box-shadow:0 10px 30px rgba(0,0,0,.25);
  overflow:hidden;
  transition:transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  will-change:transform
}
.card *{min-width:0}
.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,0,0,.28);border-color:rgba(123,92,255,.35)}
@media (hover:none){ .card:hover{transform:none} }

.card-media{
  position:relative;background:var(--rk-panel-2);
  aspect-ratio:1/1;display:flex;align-items:center;justify-content:center
}
.card-media img{width:100%;height:100%;object-fit:cover;object-position:center}
.badge{
  position:absolute;left:10px;top:10px;padding:6px 10px;border-radius:999px;
  font-size:11px;font-weight:800;letter-spacing:.06em;
  background:linear-gradient(135deg,var(--rk-accent),var(--rk-accent-2));
  color:#fff;pointer-events:none;user-select:none
}
/* Fallback quando não há aspect-ratio */
@supports not (aspect-ratio: 1 / 1){
  .card-media{position:relative}
  .card-media::before{content:"";display:block;padding-top:100%}
  .card-media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
  .card-media > .badge{position:absolute}
}

.card-body{
  display:flex;flex-direction:column;gap:10px;padding:12px;min-height:160px
}
.card-title{
  margin:0;font-weight:800;font-size:16px;line-height:1.2;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  max-height:2.6em
}
.card-desc{
  margin:0;color:var(--rk-muted);font-size:14px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  max-height:4.2em;overflow-wrap:anywhere;hyphens:auto
}

.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{
  font-size:12px;padding:4px 8px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid var(--rk-border)
}

.card-actions{margin-top:auto;display:flex;gap:8px;padding:12px}
.card-actions .btn{flex:1}
.btn-ghost{background:var(--rk-panel-2);border:1px solid var(--rk-border)}
.card-actions .btn:focus-visible{box-shadow:var(--rk-ring)}

.faq-grid{display:grid;gap:12px}
@media (min-width:900px){ .faq-grid{grid-template-columns:1fr 1fr} }
.faq-item{
  background:var(--rk-panel);border:1px solid var(--rk-border);border-radius:12px;
  padding:14px 16px;box-shadow:0 10px 24px rgba(0,0,0,.18)
}
.faq-item h4{margin:0 0 6px;font-size:16px}
.faq-item p{margin:0;color:var(--rk-muted)}

.section{padding:24px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:10px}
.section-head h3{margin:0;font-size:18px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}

.modal{position:fixed;inset:0;display:grid;place-items:center;z-index:50}
.modal[aria-hidden="true"]{display:none}
.modal__overlay{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.modal__dialog{
  position:relative;background:var(--rk-panel);border:1px solid var(--rk-border);
  border-radius:16px;width:min(920px,96vw);box-shadow:0 30px 80px rgba(0,0,0,.6);padding:16px 16px 12px
}
.modal__close{
  position:absolute;right:8px;top:8px;border:none;border-radius:10px;
  background:var(--rk-panel-2);padding:6px 10px;font-weight:800;cursor:pointer
}
.modal__header{display:flex;gap:12px;align-items:center}
.modal__thumb{width:84px;height:84px;border-radius:10px;overflow:hidden;background:var(--rk-panel-2)}
.modal__thumb img{width:100%;height:100%;object-fit:cover}
.modal__headings h3{margin:0;font-size:20px}
.modal__tagline{color:var(--rk-muted);margin:8px 0 12px}
.modal__gallery{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 12px}
.modal__gallery img{
  width:64px;height:64px;border-radius:8px;border:1px solid var(--rk-border);cursor:pointer;object-fit:cover
}
.modal__body{display:grid;gap:12px;grid-template-columns:1fr}
@media (min-width:860px){ .modal__body{grid-template-columns:1fr 1fr} }
.box{background:var(--rk-panel-2);border:1px solid var(--rk-border);border-radius:12px;padding:12px}
.bullet{margin:0;padding-left:18px}
.cmd-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px}
.cmd-list li{
  background:var(--rk-panel);border:1px solid var(--rk-border);
  border-radius:10px;padding:8px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;cursor:pointer
}
.cmd-list li:active{transform:scale(.99)}
.modal__footer{display:flex;justify-content:flex-end;gap:8px;margin-top:10px}

.site-footer{padding:24px 0 48px;color:var(--rk-muted)}
.footer-inner{
  display:flex;justify-content:space-between;align-items:center;
  border-top:1px dashed var(--rk-border);padding-top:12px
}
.footer-link{font-weight:800}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .card:hover{transform:none}
}