/* HERO */
.stacks-hero { padding:70px 48px 60px; border-bottom:var(--border); background:radial-gradient(circle at 20% 80%,rgba(255,77,28,.07) 0%,transparent 50%); }
.stacks-hero-inner { max-width:650px; }
.stacks-hero-inner h1 { font-family:'Syne',sans-serif; font-size:clamp(2rem,5vw,3.5rem); font-weight:800; letter-spacing:-2px; line-height:1.05; margin-bottom:12px; }
.stacks-hero-inner h1 em { font-style:italic; color:var(--accent); }
.stacks-hero-inner p { font-size:.95rem; color:#666; line-height:1.6; max-width:500px; }

/* SECTION */
.stacks-section { padding:48px; max-width:1200px; margin:0 auto; }

/* FILTERS */
.stacks-filters { display:flex; flex-wrap:wrap; gap:10px; margin-bottom:40px; }
.sf-pill {
  background:var(--white); border:var(--border); border-radius:100px;
  padding:8px 18px; font-size:.82rem; font-weight:600;
  font-family:'Inter',sans-serif; cursor:pointer; color:var(--ink);
  transition:all .15s;
}
.sf-pill:hover { border-color:var(--ink); }
.sf-pill.active { background:var(--ink); color:var(--bg); border-color:var(--ink); }

/* GRID */
.stacks-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(340px,1fr)); gap:24px; }

/* CARD */
.stack-card {
  background:var(--white); border:var(--border); border-radius:18px;
  overflow:hidden; display:flex; flex-direction:column;
  transition:all .2s;
}
.stack-card:hover { transform:translateY(-3px); box-shadow:6px 6px 0 var(--ink); }

.stack-card-header { padding:24px 24px 20px; }
.stack-card-tag { font-size:.65rem; text-transform:uppercase; letter-spacing:2px; font-weight:700; color:var(--accent); margin-bottom:8px; }
.stack-card-emoji { font-size:2.4rem; margin-bottom:12px; display:block; }
.stack-card-title { font-family:'Syne',sans-serif; font-size:1.2rem; font-weight:800; margin-bottom:6px; }
.stack-card-desc { font-size:.83rem; color:#666; line-height:1.55; }

.stack-card-tools { padding:0 24px 20px; flex:1; }
.stack-tools-label { font-size:.65rem; text-transform:uppercase; letter-spacing:2px; font-weight:700; color:var(--muted); margin-bottom:12px; }
.stack-tool-item {
  display:flex; align-items:center; gap:12px;
  padding:10px 0; border-bottom:1px solid rgba(26,26,26,.07);
}
.stack-tool-item:last-child { border-bottom:none; }
.sti-num { font-family:'Syne',sans-serif; font-size:.7rem; font-weight:800; color:rgba(26,26,26,.2); min-width:16px; }
.sti-icon { font-size:1.1rem; width:32px; height:32px; background:var(--bg); border:var(--border); border-radius:8px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.sti-info { flex:1; min-width:0; }
.sti-name { font-size:.85rem; font-weight:700; }
.sti-role { font-size:.73rem; color:var(--muted); margin-top:1px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sti-badge { font-size:.62rem; font-weight:700; padding:3px 7px; border-radius:100px; white-space:nowrap; flex-shrink:0; }
.sti-gratis { background:#dcfce7; color:#15803d; border:1px solid #bbf7d0; }
.sti-freemium { background:#fef9c3; color:#854d0e; border:1px solid #fef08a; }
.sti-pago { background:#fee2e2; color:#991b1b; border:1px solid #fecaca; }

.stack-card-footer { padding:16px 24px; border-top:var(--border); background:var(--bg); display:flex; align-items:center; justify-content:space-between; gap:12px; }
.stack-cost { font-size:.78rem; color:var(--muted); }
.stack-cost strong { font-weight:700; color:var(--ink); }
.stack-btn { background:var(--accent); color:#fff; border:2px solid var(--ink); border-radius:10px; padding:9px 18px; font-size:.78rem; font-weight:700; text-decoration:none; box-shadow:2px 2px 0 var(--ink); transition:all .15s; display:inline-block; font-family:'Inter',sans-serif; cursor:pointer; }
.stack-btn:hover { transform:translate(-1px,-1px); box-shadow:3px 3px 0 var(--ink); }

/* CTA */
.stacks-cta { background:var(--ink); color:var(--bg); text-align:center; padding:60px 24px; }
.stacks-cta-inner { max-width:500px; margin:0 auto; }
.stacks-cta h3 { font-family:'Syne',sans-serif; font-size:clamp(1.5rem,3vw,2.2rem); font-weight:800; margin-bottom:10px; }
.stacks-cta p { font-size:.9rem; color:rgba(245,242,235,.6); margin-bottom:28px; line-height:1.6; }
.stacks-cta-btn { display:inline-block; background:var(--accent); color:#fff; border:2px solid rgba(255,255,255,.3); border-radius:12px; padding:14px 32px; font-size:.9rem; font-weight:700; text-decoration:none; transition:all .15s; }
.stacks-cta-btn:hover { background:#ff3a00; }

/* DETAIL OVERLAY */
.stack-detail-overlay { display:none; position:fixed; inset:0; background:rgba(26,26,26,.7); z-index:200; align-items:center; justify-content:center; padding:24px; }
.stack-detail-overlay.open { display:flex; }
.stack-detail-modal { background:var(--white); border:var(--border); border-radius:20px; max-width:640px; width:100%; max-height:85vh; overflow-y:auto; box-shadow:8px 8px 0 var(--ink); }
.sdm-header { padding:32px 32px 0; display:flex; align-items:flex-start; justify-content:space-between; gap:16px; }
.sdm-close { background:none; border:var(--border); border-radius:8px; padding:6px 12px; font-size:.85rem; cursor:pointer; font-family:'Inter',sans-serif; }
.sdm-body { padding:24px 32px 32px; }
.sdm-tips { background:var(--bg); border-radius:12px; padding:20px; margin-top:20px; }
.sdm-tips-title { font-size:.72rem; text-transform:uppercase; letter-spacing:2px; font-weight:700; color:var(--muted); margin-bottom:12px; }
.sdm-tip-item { display:flex; gap:10px; align-items:flex-start; font-size:.85rem; line-height:1.5; margin-bottom:10px; color:#444; }
.sdm-tip-item:last-child { margin-bottom:0; }
.sdm-tip-icon { font-size:1rem; flex-shrink:0; margin-top:.1em; }

@media (max-width:768px) {
  .stacks-hero { padding:48px 20px; }
  .stacks-section { padding:32px 20px; }
  .stacks-grid { grid-template-columns:1fr; }
}