body{
    margin:0;
    font-family:Arial,sans-serif;
    background:#f4f4f4;
}

/* ================= NAVBAR ================= */
.navbar{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    align-items:center;
    background:#0d6efd;
    padding:15px;
    position:sticky;
    top:0;
    z-index:999;
    box-shadow:0 2px 10px rgba(0,0,0,0.2);
}

.navbar a{
    color:white;
    text-decoration:none;
    margin:8px 12px;
    font-weight:bold;
    padding:6px 10px;
    border-radius:6px;
    transition:0.3s;
}

.navbar a:hover{
    background:white;
    color:#0d6efd;
}

/* ================= HERO ================= */
.hero{
    padding:100px 20px;
    text-align:center;
    background:#222;
    color:white;
}

/* ================= CONTAINER ================= */
.container{
    width:90%;
    margin:auto;
    padding:30px 0;
}

/* ================= CARD ================= */
.card{
    background:white;
    padding:20px;
    margin-bottom:20px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,.1);
}

/* ================= FORM ELEMENTS ================= */
input,
select,
textarea{
    width:100%;
    padding:12px;
    margin-top:10px;
    box-sizing:border-box;
    border:1px solid #ccc;
    border-radius:5px;
}

button{
    padding:12px 20px;
    background:#0d6efd;
    border:none;
    color:white;
    margin-top:10px;
    cursor:pointer;
    border-radius:5px;
    transition:0.3s;
}

button:hover{
    background:#084298;
}

/* ================= FOOTER ================= */
.footer{
    background:#111;
    color:white;
    text-align:center;
    padding:20px;
}

/* ================= DARK MODE ================= */
.dark{
    background:#111;
    color:white;
}

/* ================= WHATSAPP BUTTON ================= */
.whatsapp-btn{
    position:fixed;
    bottom:20px;
    right:20px;
    background:#25D366;
    color:white;
    padding:15px;
    border-radius:50px;
    text-decoration:none;
    font-weight:bold;
}

/* ================= CAROUSEL ================= */
.carousel-inner{
    border-radius:12px;
    overflow:hidden;
}

.carousel-inner img{
    width:100%;
    height:450px;
    object-fit:cover;
    transition:0.5s ease;
}

.carousel-inner .item img:hover{
    transform:scale(1.05);
}

/* ================= TABLE ================= */
table{
    width:100%;
    border-collapse:collapse;
    background:white;
}

table th,
table td{
    padding:10px;
    border:1px solid #ddd;
    text-align:center;
}

table th{
    background:#0d6efd;
    color:white;
}

/* ================= MOBILE ================= */
@media(max-width:768px){
    .navbar{
        flex-direction:column;
    }

    .navbar a{
        width:100%;
        text-align:center;
    }

    .hero{
        padding:60px 10px;
    }

    .carousel-inner img{
        height:250px;
    }
}