body{ 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
}
.navbar{
    background-color: #fff; border-bottom: 1px solid #f0f0f0; 
}
.navbar-brand img{
            height: 100px; 
}
.nav-link{ 
    color: #333 !important; font-weight: 500; font-size: 15px; padding: 10px 15px !important; 
}
        
        /* ড্রপডাউন স্টাইল */
.dropdown-menu{
    border: none; box-shadow: 0 5px 15px rgba(0,0,0,0.1); border-radius: 10px; 
}
.dropdown-item{ 
    padding: 10px 20px; font-size: 14px; color: #555; 
}
.dropdown-item:hover{ 
    background-color: #f8f9fa; color: #d12c8a; 
}

.btn-login { 
    border: 2px solid #5d5fef; color: #5d5fef; border-radius: 8px; padding: 8px 22px; font-weight: 600; text-decoration: none; transition: 0.3s; 
}
.btn-login:hover{ 
    background-color: #5d5fef; color: #fff; 
}

        /* Hero Section Styles */
.hero-section {
    background-color: #e6f7ff; /* Fallback */
    background-image: linear-gradient(to bottom right, #f2fafc, #d5e9f1); /* Approximate gradient from image */
    position: relative;
    padding-top: 100px;
    padding-bottom: 120px; /* Space for the overlapping stats card */
      
}
.hero-title {
    color: #2b307d; /* Deep blue from image */
    font-size: 52px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero-subtitle {
    color: #d12c8a; /* Magenta/Pink from image */
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 50px;
}
.hero-btns .btn {
    border-radius: 8px;
    padding: 12px 30px;
    font-weight: 600;
    font-size: 16px;
    margin-right: 15px;
}
.btn-courses {
    background-color: #d12c8a;
    color: #fff;
    border: none;
}
.btn-courses:hover { background-color: #b52075; color: #fff; }
        
.btn-start-learning {
    background-color: #fff;
    color: #d12c8a;
    border: 2px solid #eaeaea;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}
.btn-start-learning:hover{ background-color: #fafafa; border-color: #d1d1d1; 
}      
.play-icon {
    color: #d12c8a;
    font-size: 20px;
    margin-right: 10px;
}

.hero-image-container {
    position: relative;
    height: 100%;
}
.hero-image {
    max-width: 100%;
    height: auto;
    position: absolute;
    bottom: -50px; /* Slight overlap on stats card on larger screens */
    right: -20px;
}

        /* Stats Card Styles */
.stats-card-container {
    position: absolute;
    bottom: -80px; /* Overlap hero section */
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1200px;
    z-index: 10;
}
.stats-card {
    background-color: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    padding: 30px 20px;
}
.stat-item { 
    text-align: center; border-right: 1px solid #eaeaea; 
}
.stat-item:last-child { 
    border-right: none; 
}
.stat-number { 
    color: #d12c8a; font-size: 36px; font-weight: 700; 
}
.stat-label { 
    color: #777; font-size: 16px; margin-top: 5px; 
}



/* -------- */
/* কার্ডের সাইজ সমান রাখার জন্য কাস্টম সিএসএস */
        .card-custom {
            height: 100%;
            border-radius: 15px;
            overflow: hidden;
            border: none;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            transition: transform 0.3s;
            cursor: pointer;
        }
        .card-custom:hover {
            transform: translateY(-5px);
        }
        .thumbnail-container {
            position: relative;
            height: 180px; /* থাম্বনেইলের ফিক্সড হাইট */
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .play-button {
            position: absolute;
            width: 50px;
            height: 50px;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #0d6efd;
        }
        .badge-label {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: white;
            padding: 2px 10px;
            border-radius: 5px;
            font-size: 12px;
            font-weight: bold;
        }
        /* ক্যারোসেল কন্ট্রোল আইকন */
        .carousel-control-prev-icon, .carousel-control-next-icon {
            background-color: #000;
            border-radius: 50%;
            padding: 15px;
        }
        
        /* Floating Chat Icon (Static Example) */
.chat-icon {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background-color: #2b307d;
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    z-index: 100;
}

        /* Responsive adjustments */
        @media (max-width: 991px) {
            .hero-title { font-size: 36px; }
            .hero-subtitle { font-size: 24px; }
            .hero-image { position: static; margin-top: 30px; }
            .hero-section { padding-bottom: 180px; } /* More space for card on mobile */
            .stats-card-container { bottom: -100px; }
            .stat-item { border-right: none; border-bottom: 1px solid #eaeaea; padding: 15px 0; }
            .stat-item:last-child { border-bottom: none; }
        }

        /* বাম পাশের মেনু স্টাইল */
.nav-pills .nav-link {
     background-color: white;
    color: #333 !important;
    margin-bottom: 15px;
    text-align: left;
    padding: 15px 20px;
    border-radius: 12px;
    font-weight: 500;
    border: 2px solid transparent;
    transition: 0.3s;
    display: flex;
    align-items: center;
}
        
        /* অ্যাক্টিভ বা সিলেক্টেড মেনু স্টাইল */
.nav-pills .nav-link.active {
    background-color: white !important;
    border: 2px solid #d12c8a !important;
    color: #333 !important;
    position: relative;
}

        /* সিলেক্টেড মেনুর ডান পাশের ছোট অ্যারো */
.nav-pills .nav-link.active::after {
    content: '';
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 12px solid #d12c8a;
}

.nav-link img { 
    width: 30px; margin-right: 15px; 
}

        /* ডান পাশের বক্স স্টাইল */
.content-box {
    background: linear-gradient(135deg, #ff416c, #ff4b2b);
    border-radius: 25px;
    padding: 40px;
    min-height: 450px;
    display: flex;
    justify-content: center;
    align-items: center;
}
        
.display-image {
    max-width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}




/* ট্যাব স্টাইল */
.nav-tabs { 
    border-bottom: 2px solid #eee; justify-content: start; margin-bottom: 30px; 
}
.nav-link { 
    color: #555 !important; font-weight: 600; border: none !important; padding: 10px 25px; 
}
.nav-link.active { 
    color: #d12c8a !important; border-bottom: 3px solid #d12c8a !important; background: none !important; 
}

        /* ভিডিও কার্ড কন্টেইনার (গ্রেডিয়েন্ট ব্যাকগ্রাউন্ড) */
        
.video-container {
    background: linear-gradient(90deg, #fce4ec, #e3f2fd);
    border-radius: 20px;
    padding: 40px 20px;
    position: relative;
}

        /* কার্ড স্টাইল */
.video-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    border: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: 0.3s;
    height: 100%;
}
.video-card:hover { 
    transform: translateY(-5px); 
}
        
.thumbnail-box { 
    position: relative; 
}
.thumbnail-img { 
    width: 100%; height: 160px; object-fit: cover; 
}
        
        /* প্লে বাটন ওভারলে */
.play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.8);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #5d5fef;
    font-size: 18px;
}

.badge-tag {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(255,255,255,0.9);
    color: #333;
    padding: 2px 8px;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 600;
}

.card-body { 
    padding: 15px; text-align: left; 
}
.subject-info { 
    font-size: 13px; color: #666; margin-bottom: 5px; display: flex; align-items: center; 
}
.subject-dot { 
    height: 10px; width: 10px; border-radius: 50%; display: inline-block; margin-right: 8px; 
}
.video-title { 
    font-size: 14px; font-weight: 600; color: #333; 
}

        /* স্লাইডার এরো */
.arrow-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 5;
    color: #5d5fef;
}
.prev-arrow { 
    left: -20px; 
}
.next-arrow { 
    right: -20px; 
}

        /* কাস্টম মার্জিন এবং প্যাডিং */
.info-section { 
    padding: 80px 0; 
}

        /* ভিডিও থাম্বনেইল স্টাইল */
.video-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.video-wrapper img { 
    width: 100%; display: block; 
}
        
        /* প্লে বাটন ওভারলে */
.play-btn-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.9);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4a4fb1;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

        /* টেক্সট কন্টেন্ট স্টাইল */
.info-title {
    color: #2b307d;
    font-size: 32px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 25px;
}
.info-desc {
    color: #555;
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 35px;
}

        /* ব্লু বাটন স্টাইল */
.btn-about {
    background-color: #4a58f2;
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    transition: 0.3s;
    text-decoration: none;
    display: inline-block;
}
.btn-about:hover {
    background-color: #3b46c9;
    color: white;
}

        /* ফুটারের মেইন ব্যাকগ্রাউন্ড কালার */
.footer-section {
    background-color: #e9f0f6; 
    padding: 60px 0 20px 0;
    margin-top: 50px; /* উপরে মার্জিন */
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #444;
}

.footer-logo { 
    height: 40px; margin-bottom: 20px; 
}
        
.footer-title {
    font-weight: 700;
    color: #2b307d;
    margin-bottom: 25px;
    font-size: 18px;
}

.footer-links { 
    list-style: none; padding: 0; 
}
.footer-links li { 
    margin-bottom: 12px; 
}
.footer-links a {
    text-decoration: none;
    color: #555;
    font-size: 15px;
    transition: 0.3s;
}
.footer-links a:hover { 
    color: #d12c8a; 
}

        /* কন্টাক্ট ইনফো আইকন স্টাইল */
.contact-item { 
    display: flex; align-items: center; margin-bottom: 15px; font-size: 14px; 
}
.icon-box {
    width: 35px;
    height: 35px;
    background-color: #fff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    color: #5d5fef;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

        /* সোশ্যাল আইকন স্টাইল */
.social-icons a {
    width: 40px;
    height: 40px;
    background-color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-right: 10px;
    color: #555;
    text-decoration: none;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    font-size: 18px;
}
.fa-facebook { color: #1877F2; }
.fa-youtube { color: #FF0000; }
.fa-instagram { color: #E4405F; }
.fa-linkedin { color: #0A66C2; }

        /* নিচের ছোট বার (Bottom Bar) */
.footer-bottom {
    border-top: 1px dashed #ccc;
    margin-top: 40px;
    padding-top: 20px;
    font-size: 13px;
    color: #666;
}
.footer-bottom a { 
    color: #666; text-decoration: none; margin-right: 15px; 
}

        /* গুগল প্লে বাটন */
.google-play-btn { height: 45px; margin-top: 10px; }