/* Reset & Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
    transition: all 0.3s ease;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

.section {
    padding: 60px 0;
}

h1, h2, h3 {
    margin-bottom: 20px;
    color: #222;
}

.btn {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    display: inline-block;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #0056b3;
}

/* Topbar */
.topbar {
    background: linear-gradient(90deg, #0056b3, #007bff);
    color: white;
    padding: 12px 25px;
    text-align: right;
    font-size: 15px;
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    border-radius: 0 0 8px 8px;
    font-weight: 600;
}

.topbar a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: white;
    background-color: #003974;
    padding: 10px 18px;
    border-radius: 6px;
    transition: background-color 0.3s ease, transform 0.15s ease;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    text-shadow: 0 1px 1px rgba(0,0,0,0.2);
}

/* আলাদা করে কল বাটনের জন্য */
.btn-call {
    background-color: #0069d9;
}

.btn-call:hover {
    background-color: #004a8f;
}

/* আলাদা করে হোয়াটসঅ্যাপ বাটনের জন্য */
.btn-whatsapp {
    background-color: #25D366;
    color: white;
    text-shadow: none;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    color: white;
    text-shadow: none;
}

.topbar a i {
    font-size: 18px;
}

.topbar a:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 12px rgba(0, 55, 116, 0.7);
    text-shadow: none;
}

/* Sidebar Styles */
.sidebar-toggle {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: #007bff;
    color: #fff;
    padding: 10px 12px;
    font-size: 22px;
    border-radius: 6px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: 0.3s ease;
    z-index: 1000;
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: #1a1a1a;
    color: #fff;
    overflow-x: hidden;
    overflow-y: auto;
    z-index: 1002;
    transition: width 0.3s ease;
    padding: 0;
}

.sidebar.open {
    width: 260px;
    padding: 30px 20px;
}

.sidebar .close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 20px;
    cursor: pointer;
    color: #ccc;
}

.sidebar h3 {
    text-align: center;
    margin: 40px 0 25px;
    border-bottom: 1px solid #444;
    padding-bottom: 10px;
    font-size: 22px;
}

.sidebar a {
    display: block;
    color: #ccc;
    padding: 10px;
    margin: 5px 0;
    border-radius: 6px;
    transition: 0.3s;
}

.sidebar a:hover {
    background: #007bff;
    color: #fff;
}

.contact-icons {
    margin-top: 25px;
    text-align: center;
}

.contact-icons a {
    font-size: 20px;
    margin: 0 10px;
    color: #ccc;
    transition: 0.3s;
}

.contact-icons a:hover {
    color: #00ffcc;
}

.address {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: #aaa;
}

/* Hide main scroll when sidebar open */
body.sidebar-open {
    overflow: hidden;
}

/* Responsive */
@media (max-width: 768px) {
    .topbar {
        justify-content: center;
        font-size: 14px;
        padding: 10px 15px;
    }

    .topbar a {
        font-size: 14px;
        padding: 8px 14px;
    }

    .topbar a i {
        font-size: 16px;
    }
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    padding: 15px;
    box-shadow: 2px 2px 5px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: transform 0.3s;
}
.whatsapp-float:hover {
    transform: scale(1.1);
}
.whatsapp-float img {
    width: 30px;
    height: 30px;
}