* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Arial, sans-serif; background: #1e1e1e; color: #eee; min-height: 100vh; }

/* ---- Login ---- */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { background: #2b2b2b; border: 1px solid #3d3d3d; border-radius: 16px; padding: 40px; width: 360px; text-align: center; }
.login-card h1 { font-size: 22px; color: #fff; }
.login-card .sub { color: #58b38a; font-weight: bold; margin-bottom: 24px; letter-spacing: 1px; }
.login-card input { width: 100%; padding: 12px; border-radius: 8px; border: 1px solid #3d3d3d; background: #1e1e1e; color: #fff; margin-bottom: 14px; font-size: 15px; }
.login-card button { width: 100%; padding: 12px; border: none; border-radius: 8px; background: #58b38a; color: #06251a; font-weight: bold; font-size: 15px; cursor: pointer; }
.erro { color: #ff6b6b; margin-top: 10px; font-size: 14px; min-height: 18px; }

/* ---- App ---- */
.topo { display: flex; justify-content: space-between; align-items: center; padding: 18px 28px; background: #2b2b2b; border-bottom: 1px solid #3d3d3d; }
.topo-titulo { font-size: 18px; font-weight: bold; }
.topo-titulo span { color: #58b38a; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; padding: 24px; max-width: 1400px; margin: 0 auto; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } }
.painel { background: #2b2b2b; border: 1px solid #3d3d3d; border-radius: 14px; padding: 24px; }
.painel h2 { font-size: 16px; margin-bottom: 16px; color: #fff; }
label { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: #999; margin: 14px 0 5px; }
input[type=text], select, textarea { width: 100%; padding: 10px; border-radius: 8px; border: 1px solid #3d3d3d; background: #1e1e1e; color: #fff; font-size: 14px; }
.row { display: flex; gap: 8px; align-items: center; }
.row select { flex: 1; }
.btn-pri { padding: 11px 18px; border: none; border-radius: 8px; background: #58b38a; color: #06251a; font-weight: bold; cursor: pointer; font-size: 14px; }
.btn-sec { padding: 9px 14px; border: 1px solid #3d3d3d; border-radius: 8px; background: #333; color: #eee; cursor: pointer; font-size: 13px; white-space: nowrap; }
.btn-sec.danger { color: #ff6b6b; border-color: #5a2b2b; }
.btn-sec.upload { display: inline-flex; align-items: center; }
.dica { color: #888; font-size: 13px; margin-bottom: 12px; }
.preview-box { overflow: auto; padding: 16px; background: #151515; border-radius: 10px; border: 1px solid #3d3d3d; }
.acoes { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
textarea#saida-html { height: 180px; font-family: monospace; font-size: 12px; resize: vertical; }