*{
  margin:0;
  padding:0;
  box-sizing:border-box;
  font-family: 'Segoe UI', sans-serif;
}

/* BODY */
body{
  background: linear-gradient(135deg,#0f2027,#203a43,#2c5364);
  color:#fff;
  min-height:100vh;
}

/* ☰ MENU */
.menu-btn{
  position:fixed;
  top:15px;
  left:15px;
  font-size:28px;
  cursor:pointer;
  z-index:1001;
}

/* SIDEBAR */
.sidebar{
  position:fixed;
  top:0;
  left:-260px;
  width:250px;
  height:100%;
  background:#000;
  padding:20px;
  transition:0.3s;
  z-index:1000;
}

.sidebar.open{
  left:0;
}

.sidebar h2{
  margin-bottom:20px;
  color:#ffd166;
}

.sidebar a{
  display:block;
  color:#fff;
  text-decoration:none;
  margin:10px 0;
  padding:8px;
  border-radius:6px;
}

.sidebar a:hover,
.sidebar a.active{
  background:#ffd166;
  color:#000;
}

/* CONTENT */
.content{
  max-width:900px;
  margin:80px auto;
  padding:20px;
}

.content h1{
  text-align:center;
  margin-bottom:25px;
  color:#ffd166;
}

/* CARD */
.card{
  background:rgba(0,0,0,0.4);
  padding:25px;
  border-radius:12px;
  box-shadow:0 10px 25px rgba(0,0,0,0.4);
}

.card p{
  margin-bottom:15px;
  line-height:1.6;
}

/* FORM */
form input,
form textarea{
  width:100%;
  padding:12px;
  margin-bottom:12px;
  border:none;
  border-radius:6px;
  outline:none;
}

form textarea{
  min-height:120px;
  resize:none;
}

form button{
  width:100%;
  padding:12px;
  background:#00f5c4;
  border:none;
  border-radius:6px;
  font-size:16px;
  font-weight:bold;
  cursor:pointer;
}

form button:hover{
  background:#00c9a7;
}

/* WHATSAPP */
.whatsapp-btn{
  display:block;
  margin-top:15px;
  text-align:center;
  background:#25D366;
  color:#fff;
  padding:12px;
  border-radius:8px;
  text-decoration:none;
  font-weight:bold;
}

.whatsapp-btn:hover{
  background:#1ebe5d;
}