/* Base */
.cbk-header{
  position: relative;
  background:#fff;
  border-bottom:1px solid #eee;
  z-index: 1000;
}

.cbk-inner{
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 80px;
}

.cbk-brand{ display:inline-flex; align-items:center; }
.cbk-logo{ display:block; height:200px; width:auto; }

/* Menú desktop */
.cbk-nav{
  display:flex;
  align-items:center;
  gap: 26px;
}

.cbk-link{
  text-decoration:none;
  color:#111;
  font-weight:600;
  font-size:15px;
  letter-spacing:0.2px;
  padding:10px 6px;
  border-bottom:2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.cbk-link:hover{ color:#0b57d0; border-bottom-color:#0b57d0; }

.cbk-actions{
  display:flex;
  align-items:center;
  gap: 10px;
  margin-left: 8px;
}

.cbk-btn{
  text-decoration:none;
  font-weight:700;
  font-size:14px;
  padding:10px 14px;
  border-radius: 999px;
  border:1px solid transparent;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  white-space:nowrap;
}
.cbk-btn:active{ transform: translateY(1px); }

.cbk-btn--ghost{
  color:#111;
  border-color:#d9d9d9;
  background:#fff;
}
.cbk-btn--ghost:hover{
  border-color:#0b57d0;
  color:#0b57d0;
}

.cbk-btn--primary{
  background:#0b57d0;
  color:#fff;
}
.cbk-btn--primary:hover{ background:#094aa8; }

/* Hamburguesa */
.cbk-burger{
  display:none;
  width:44px;
  height:44px;
  border:1px solid #e6e6e6;
  background:#fff;
  border-radius: 12px;
  cursor:pointer;
  padding: 10px;
}
.cbk-burger span{
  display:block;
  height:2px;
  background:#111;
  margin:6px 0;
  border-radius:2px;
  transition: transform .2s ease, opacity .2s ease;
}

/* Backdrop (móvil) */
.cbk-backdrop{
  display:none;
  position:fixed;
  inset:0;
  background: rgba(0,0,0,.25);
}

/* Responsive: tablet/móvil */
@media (max-width: 980px){
  .cbk-logo{ height:56px; }

  .cbk-burger{ display:inline-flex; align-items:center; justify-content:center; }

  /* El nav pasa a panel desplegable */
  .cbk-nav{
    position: fixed;
    top: 76px;
    right: 14px;
    left: 14px;
    display:none;                 /* importante: oculto por defecto */
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 14px;
    background:#fff;
    border:1px solid #ededed;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0,0,0,.12);
  }

  .cbk-link{
    padding:12px 12px;
    border-bottom:1px solid #f1f1f1;
  }
  .cbk-link:last-of-type{ border-bottom:none; }

  .cbk-actions{
    margin-left:0;
    margin-top: 10px;
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  /* Estado abierto */
  .cbk-header.is-open .cbk-nav{ display:flex; }
  .cbk-header.is-open .cbk-backdrop{ display:block; }

  /* Hamburguesa -> X */
  .cbk-header.is-open .cbk-burger span:nth-child(1){
    transform: translateY(8px) rotate(45deg);
  }
  .cbk-header.is-open .cbk-burger span:nth-child(2){
    opacity:0;
  }
  .cbk-header.is-open .cbk-burger span:nth-child(3){
    transform: translateY(-8px) rotate(-45deg);
  }
}