:root{
  --bg:#f3f4f6;
  --card:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --border:#e5e7eb;
  --shadow: 0 22px 60px rgba(17,24,39,.16);
  --shadow2: 0 10px 24px rgba(17,24,39,.10);

  --btn:#111827;
  --btn2:#1f2937;

  --danger-bg:#fee2e2;
  --danger-text:#991b1b;

  --ok-bg:#dcfce7;
  --ok-text:#166534;
}

*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 500px at 50% 20%, rgba(17,24,39,.10), transparent 60%),
    linear-gradient(180deg, #f7f7f8 0%, #eef0f3 100%);
}

.cad-bg{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:28px;
}

.cad-wrap{
  width:min(1120px, 100%);
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  border-radius:22px;
  overflow:hidden;
  background:transparent;
  box-shadow: var(--shadow);
}

/* LEFT (marketing/video) */
.cad-left{
  position:relative;
  min-height:640px;
  background:#0b0f19;
}

.cad-video{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  filter: saturate(.9) contrast(1.05) brightness(.9);
}

.cad-overlay{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(17,24,39,.55) 0%, rgba(17,24,39,.80) 100%),
    radial-gradient(700px 500px at 20% 30%, rgba(255,255,255,.12), transparent 60%);
}

.cad-marketing{
  position:relative;
  z-index:2;
  height:100%;
  padding:34px 34px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  gap:14px;
  color:#fff;
}

.cad-logo{
  width:220px;
  max-width:100%;
  height:auto;
  opacity:.95;
}

.cad-marketing h1{
  margin:0;
  font-size:30px;
  letter-spacing:-.02em;
}

.cad-marketing p{
  margin:0;
  color:rgba(255,255,255,.85);
}

.cad-benefits{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:8px;
}

.cad-benefits span{
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.20);
  background: rgba(255,255,255,.08);
  font-size:13px;
  color:rgba(255,255,255,.90);
}

/* RIGHT (form) */
.cad-right{
  background: linear-gradient(180deg, #ffffff 0%, #fbfbfc 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:34px;
}

.cad-card{
  width:min(460px, 100%);
  background: var(--card);
  border: 1px solid rgba(17,24,39,.06);
  border-radius: 18px;
  box-shadow: var(--shadow2);
  padding: 26px 24px;
}

.cad-card h2{
  margin:0 0 4px;
  letter-spacing:-.02em;
}

.cad-sub{
  margin:0 0 16px;
  color:var(--muted);
  font-size:14px;
}

/* Alerts */
.cad-alert{
  border-radius:12px;
  padding:10px 12px;
  font-size:14px;
  margin:10px 0 14px;
  border:1px solid transparent;
  line-height:1.35;
}

.cad-alert-danger{
  background:var(--danger-bg);
  color:var(--danger-text);
  border-color: rgba(153,27,27,.18);
}

.cad-alert-ok{
  background:var(--ok-bg);
  color:var(--ok-text);
  border-color: rgba(22,101,52,.18);
}

/* Form */
.cad-form label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin:10px 0 6px;
}

.cad-form input,
.cad-form select{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--text);
  outline:none;
}

.cad-form input::placeholder{
  color:#9ca3af;
}

.cad-form input:focus,
.cad-form select:focus{
  border-color: rgba(17,24,39,.35);
  box-shadow: 0 0 0 3px rgba(17,24,39,.10);
}

.cad-grid{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap:12px;
}

@media (max-width: 920px){
  .cad-grid{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px){
  .cad-grid{ grid-template-columns: 1fr; }
}
.cad-divider{
  height:1px;
  background: var(--border);
  margin:16px 0 8px;
}

.cad-btn{
  width:100%;
  margin-top:14px;
  padding:12px 14px;
  border:none;
  border-radius:12px;
  background: linear-gradient(180deg, var(--btn) 0%, var(--btn2) 100%);
  color:#fff;
  font-weight:700;
  cursor:pointer;
  box-shadow: 0 10px 22px rgba(17,24,39,.12);
}

.cad-btn:hover{ filter:brightness(1.05); }
.cad-btn:active{ transform: translateY(1px); }

.cad-loginlink{
  margin-top:14px;
  font-size:14px;
  color:var(--muted);
  text-align:center;
}

.cad-loginlink a{
  color:#111827;
  font-weight:700;
  text-decoration:none;
}

.cad-loginlink a:hover{ text-decoration:underline; }

.cad-footer{
  position:fixed;
  left:0; right:0; bottom:0;
  padding:10px 14px;
  text-align:center;
  font-size:12px;
  color: rgba(17,24,39,.55);
}

/* Responsivo */
@media (max-width: 920px){
  .cad-wrap{ grid-template-columns: 1fr; }
  .cad-left{ display:none; }
  .cad-right{ padding:22px; }
  .cad-footer{ position:static; padding:18px 14px; }
}

@media (max-width: 520px){
  .cad-bg{ padding:18px; }
  .cad-card{ padding:22px 18px; border-radius:16px; }
  .cad-grid{ grid-template-columns: 1fr; }
}