/* Basic Reset & Brand Colors */
:root {
    --bg-color: #F4F2FA;
    --primary: #6529CB;
    --secondary: #502FA5;
    --accent: #39228D;
    --soft-highlight: #B3A3D8;
    --text-color: #131228;
}

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

body {
    background-color: var(--bg-color); 
    color: var(--text-color);
    /* ব্যাকগ্রাউন্ডে একটি সাময়িক প্যাটার্ন বা শেইপ থাকলে গ্লাসমোরফিজম আরও ভালো ফুটে ওঠে */
}

/* Header Wrapper */
.header-wrapper {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

/* Glassmorphism Effect */
.glass-header {
    background: rgba(255, 255, 255, 0.45); /* স্বচ্ছ সাদা */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 50px;
    width: 100%;
    max-width: 1100px;
    padding: 12px 30px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.07);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    z-index: 1001;
}

.logo-img {
    max-height: 45px;
    width: auto;
    object-fit: contain;
}

/* Header Right Side (Desktop) */
.header-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

/* Navigation Menu */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.main-nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: color 0.3s ease;
}

.main-nav ul li a:hover {
    color: var(--primary);
}

/* Social Icons */
.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--soft-highlight);
    color: var(--accent);
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background: var(--primary);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(101, 41, 203, 0.3);
}

/* Book a Call Button */
.btn-book-call {
    background: var(--primary);
    color: #ffffff;
    text-decoration: none;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    display: inline-block;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-book-call:hover {
    background: var(--secondary);
    box-shadow: 0 8px 20px rgba(80, 47, 165, 0.3);
    transform: translateY(-2px);
}

/* Hamburger Menu (Hidden on Desktop) */
.hamburger {
    display: none;
    font-size: 24px;
    color: var(--text-color);
    cursor: pointer;
    z-index: 1001;
}

/* =======================================
   Mobile Responsiveness
======================================== */
@media (max-width: 991px) {
    .hamburger {
        display: block;
    }

    .header-right {
        position: absolute;
        top: 80px;
        right: 5%;
        width: 90%;
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        border: 1px solid rgba(255, 255, 255, 0.6);
        border-radius: 20px;
        flex-direction: column;
        padding: 30px;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
        
        /* Animation properties */
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: all 0.4s ease;
    }

    /* Active Class for Mobile Menu */
    .header-right.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        width: 100%;
        gap: 20px;
    }

    .main-nav ul li {
        width: 100%;
        text-align: center;
    }

    .social-icons {
        margin: 20px 0;
    }

    .btn-book-call {
        width: 100%;
        text-align: center;
    }
}
/* =======================================
   3D Hero Section Styling
======================================== */
.hero-section {
    position: relative;
    width: 100%;
    min-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 100px; /* হেডারের জন্য জায়গা */
}

/* 3D Scene setup */
.scene {
    width: 100%;
    height: 350px;
    perspective: 1200px; /* 3D ডেপথ (Depth) */
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 50px;
    cursor: grab;
}

.scene:active {
    cursor: grabbing;
}

/* Carousel wrapper */
.carousel {
    width: 180px;
    height: 250px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.5s ease-out;
}

/* Individual Image Cell */
.carousel__cell {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(101, 41, 203, 0.15);
    border: 3px solid #ffffff;
    transition: filter 0.3s, transform 0.3s;
    background: #ffffff;
}

.carousel__cell img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Front Image Highlight Effect */
.carousel__cell:hover {
    transform: scale(1.05); /* হোভার করলে সামান্য বড় হবে */
    box-shadow: 0 20px 40px rgba(101, 41, 203, 0.3);
}

/* Text Content Below Carousel */
.hero-content {
    text-align: center;
    z-index: 10;
    margin-top: 20px;
}

.hero-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 8px;
}

.hero-subtitle {
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 15px;
}

.hero-action {
    font-size: 12px;
    color: var(--accent);
    font-weight: 700;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

/* Mobile View Adjustments */
@media (max-width: 768px) {
    .scene { height: 250px; }
    .carousel { width: 130px; height: 180px; }
    .hero-title { font-size: 24px; }
}