/* ==========================================================================
   /cases — página dedicada de cases (hub) + lead-gate de download de PDFs.
   Depende de /styles.css (design system + .case-card + .cases-grid).
   ========================================================================== */

/* HERO / intro */
.cs-hero{
  position:relative;padding:calc(var(--header-h,72px) + 64px) 0 8px;
  background:
    radial-gradient(60% 60% at 50% 0%, rgba(154,61,240,.22), transparent 70%),
    var(--bg,#05010f);
}
.cs-hero .eyebrow{display:inline-block}
.cs-hero h1{
  font-family:var(--f-display);font-weight:600;color:#fff;line-height:1.08;
  font-size:clamp(30px,5vw,54px);margin:14px 0 14px;max-width:20ch;
}
.cs-hero h1 .accent{color:var(--roxo-2)}
.cs-hero p{color:var(--text-dim);max-width:58ch;font-size:clamp(15px,2vw,18px);line-height:1.6}

.cases{padding-top:clamp(28px,4vw,44px)}

/* ==========================================================================
   CARDS HORIZONTAIS — imagem em destaque + logo do cliente
   ========================================================================== */
.cs-rows{display:flex;flex-direction:column;gap:26px;margin-top:44px}
.cs-row{
  display:grid;grid-template-columns:1.05fr 1fr;
  background:linear-gradient(160deg,#130b2a,#0a0518);
  border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .35s var(--ease-soft),border-color .35s,box-shadow .35s;
}
.cs-row:hover{transform:translateY(-4px);border-color:var(--roxo);box-shadow:0 26px 60px rgba(123,22,219,.24)}
.cs-row__media{position:relative;min-height:320px;overflow:hidden}
.cs-row__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease-soft)}
.cs-row:hover .cs-row__media img{transform:scale(1.05)}
/* alterna a imagem para a direita em linhas pares (ritmo visual) */
.cs-row:nth-child(even) .cs-row__media{order:2}

.cs-row__body{padding:clamp(24px,3vw,44px);display:flex;flex-direction:column;align-items:flex-start;justify-content:center}
.cs-row__logo{height:30px;width:auto;display:block;margin-bottom:18px;filter:drop-shadow(0 2px 10px rgba(0,0,0,.4))}
.cs-row__logo--text{display:inline-block;font-family:var(--f-display);font-weight:600;font-size:20px;color:#fff;letter-spacing:.05em;text-transform:uppercase;height:auto;margin-bottom:18px}
.cs-row__body h3{font-family:var(--f-display);font-weight:500;font-size:clamp(21px,2.4vw,30px);color:#fff;line-height:1.15;margin:0 0 10px;max-width:22ch}
.cs-row__body p{color:var(--text-dim);font-size:15px;line-height:1.6;max-width:52ch}
.cs-row__tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.cs-row__tags span{font-size:11px;padding:4px 11px;border-radius:999px;background:rgba(123,22,219,.16);border:1px solid var(--border-2);color:#d6c2ff;letter-spacing:.04em}

.cs-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.cs-actions .btn{padding:12px 20px;font-size:14px;justify-content:center}
.cs-dl .arrow{font-weight:700}
/* "Baixar PDF" (secundário): stroke lilás claro, com contraste no card escuro */
.cs-actions .cs-dl{border-width:1.5px;border-color:rgba(190,164,242,.7);color:#e9dfff}
.cs-actions .cs-dl:hover{border-color:var(--roxo-2);background:rgba(154,61,240,.16)}

@media(max-width:820px){
  .cs-row{grid-template-columns:1fr}
  .cs-row__media{min-height:210px;order:0 !important}
}

/* CTA final (próximo case) */
.cs-cta{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:26px;padding:clamp(24px,3vw,36px) clamp(24px,3vw,40px);
  border:1px dashed var(--border-2);border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(123,22,219,.10),rgba(10,5,24,0));
  transition:border-color .3s,background .3s,transform .3s;text-decoration:none;
}
.cs-cta:hover{border-color:var(--roxo);transform:translateY(-3px);background:linear-gradient(160deg,rgba(123,22,219,.18),rgba(10,5,24,0))}
.cs-cta__txt h3{font-family:var(--f-display);font-weight:500;font-size:clamp(19px,2.2vw,26px);color:#fff;margin:0 0 4px}
.cs-cta__txt p{color:var(--text-dim);font-size:14.5px;margin:0}
.cs-cta__btn{display:inline-flex;align-items:center;gap:8px;padding:14px 24px;border-radius:999px;font-weight:700;font-size:15px;
  background:linear-gradient(135deg,var(--roxo),var(--roxo-2));color:#fff;white-space:nowrap;box-shadow:0 12px 30px rgba(123,22,219,.4)}

/* ==========================================================================
   MODAL de lead-gate
   ========================================================================== */
.cs-modal{position:fixed;inset:0;z-index:120;display:none}
.cs-modal.open{display:block}
.cs-modal__overlay{position:absolute;inset:0;background:rgba(5,1,15,.72);backdrop-filter:blur(6px)}
.cs-modal__dialog{
  position:relative;z-index:1;width:min(560px,calc(100vw - 32px));
  margin:max(6vh,24px) auto;max-height:88vh;overflow:auto;
  background:linear-gradient(160deg,#170c34,#0b0522);
  border:1px solid var(--border-2);border-radius:var(--r-lg,20px);
  box-shadow:0 30px 80px rgba(0,0,0,.55),inset 0 0 0 1px rgba(255,255,255,.04);
  padding:clamp(24px,4vw,38px);
  animation:csIn .28s var(--ease-soft);
}
@keyframes csIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.cs-modal__close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--border-2);color:#fff;font-size:20px;background:rgba(255,255,255,.04);
}
.cs-modal__close:hover{background:rgba(255,255,255,.1)}
.cs-modal__k{font-family:var(--f-display);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--roxo-2)}
.cs-modal__dialog h3{font-family:var(--f-display);font-weight:600;color:#fff;font-size:clamp(20px,3vw,26px);margin:8px 0 8px;line-height:1.15}
.cs-modal__sub{color:var(--text-dim);font-size:14.5px;line-height:1.55;margin-bottom:20px}
.cs-modal__sub b{color:#fff}

.cs-form__row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:520px){.cs-form__row{grid-template-columns:1fr}}
.cs-field{display:flex;flex-direction:column;gap:6px;margin-bottom:2px}
.cs-field label{font-size:12.5px;font-weight:600;color:var(--text-dim)}
.cs-field input{
  padding:13px 14px;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid var(--border-2);color:#fff;font:inherit;font-size:15px;transition:border-color .2s,background .2s;
}
.cs-field input::placeholder{color:var(--text-mute)}
.cs-field input:focus{outline:none;border-color:var(--roxo);background:rgba(123,22,219,.1)}
.cs-form .btn{margin-top:18px;width:100%;justify-content:center}
.cs-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.cs-err{color:#ff8080;font-size:13px;margin-top:10px;min-height:1em}
.cs-priv{color:var(--text-mute);font-size:12px;margin-top:12px;text-align:center}

/* ==========================================================================
   MOTION: skeleton dos cards, entrada/saída do modal, loading/progresso
   (design-motion-principles: entrada opacity+translateY+blur, saída sutil,
    easing custom, só transform/opacity/filter, prefers-reduced-motion)
   ========================================================================== */

/* Skeleton shimmer enquanto a imagem do card carrega (container sem ::before) */
@keyframes cs-shimmer{to{transform:translateX(100%)}}
.cs-row__media.media-load::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.06) 45%,rgba(255,255,255,.12) 50%,rgba(255,255,255,.06) 55%,transparent 80%);
  transform:translateX(-100%);animation:cs-shimmer 1.4s ease-in-out infinite;
}
.cs-row__media.is-loaded::before{animation:none;opacity:0;transition:opacity .3s ease}

/* Saída do modal: mais sutil que a entrada (Jakub) */
@keyframes csOut{to{opacity:0;transform:translateY(10px);filter:blur(4px)}}
.cs-modal.closing .cs-modal__dialog{animation:csOut .2s var(--ease-exit) forwards}
.cs-modal.closing .cs-modal__overlay{opacity:0;transition:opacity .2s ease}

/* Loading/progresso do envio do formulário */
.cs-progress{position:absolute;top:0;left:0;right:0;height:3px;overflow:hidden;
  border-top-left-radius:inherit;border-top-right-radius:inherit;
  background:rgba(255,255,255,.06);opacity:0;transition:opacity .2s ease}
.cs-progress span{position:absolute;top:0;bottom:0;left:0;width:40%;border-radius:3px;
  background:linear-gradient(90deg,var(--roxo),var(--roxo-2));transform:translateX(-100%)}
@keyframes cs-indeterminate{0%{transform:translateX(-100%)}100%{transform:translateX(360%)}}
.cs-modal__dialog.is-submitting .cs-progress{opacity:1}
.cs-modal__dialog.is-submitting .cs-progress span{animation:cs-indeterminate 1.1s linear infinite}

/* Spinner no botão de envio */
.cs-spin{display:inline-block;width:15px;height:15px;border-radius:50%;vertical-align:-2px;margin-right:2px;
  border:2px solid rgba(255,255,255,.4);border-top-color:#fff;animation:cs-spin .7s linear infinite}
@keyframes cs-spin{to{transform:rotate(360deg)}}

@media (prefers-reduced-motion: reduce){
  .cs-row__media.media-load::before{display:none}
  .cs-modal__dialog{animation:none}
  .cs-modal.closing .cs-modal__dialog{animation:none}
  .cs-modal__dialog.is-submitting .cs-progress span{animation:none;transform:none;width:100%}
  .cs-spin{animation:none;border-top-color:rgba(255,255,255,.4)}
}