/* --- বেসিক সেটআপ --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #ffffff;
    color: #000000;
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* --- হেডার (পিউর ব্ল্যাক ব্লারি ও বড় লোগো) --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 5%; 
    background: rgba(0, 0, 0, 0.9) !important; 
    backdrop-filter: blur(20px) saturate(180%); 
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-container {
    display: flex;
    align-items: center;
}

.nav-logo {
    height: auto;
    width: 220px; 
    max-height: 70px; 
    object-fit: contain;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-links a {
    text-decoration: none;
    color: #e0e0e0;
    font-weight: 500;
    transition: 0.3s;
    font-size: 15px;
}

.nav-links a:hover {
    color: #3b82f6;
}

.menu-icon {
    display: none;
    font-size: 28px;
    color: white;
    cursor: pointer;
}

/* --- টাইটেল এবং টেক্সট কালার --- */
h1, h2, h3, h4, .section-title {
    color: #001f3f; 
    font-weight: 700;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    border-left: 6px solid #001f3f;
    padding-left: 20px;
}

p, span, li, small {
    color: #000000;
}

/* --- কার্ড ডিজাইন --- */
.main-card {
    background: #fdfdfd; 
    border: 1px solid #eeeeee;
    padding: 30px;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.main-card:hover {
    border-color: #3b82f6;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    transform: translateY(-5px);
}

/* --- নতুন প্রফেশনাল মেম্বার কার্ড ডিজাইন (গ্রেডিয়েন্ট ফিনিশ) --- */
.team-section {
    position: relative;
    padding-bottom: 80px;
}

.highlight-shape {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 60%;
    background: #001f3f; /* ডার্ক ব্লু শেপ */
    z-index: 1;
    border-radius: 50px 50px 0 0;
}

.manual-slider-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 40px 0;
}

.slider-track {
    display: flex;
    gap: 30px;
    justify-content: center;
    position: relative;
    z-index: 10;
}

.team-card {
    flex: 0 0 300px;
    background: #ffffff;
    border-radius: 15px;
    overflow: hidden;
    text-align: center;
    border: 1px solid #f0f0f0;
    transition: 0.3s;
    cursor: pointer;
    position: relative;
    padding: 0;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.member-img-container {
    position: relative;
    width: 100%;
    height: 320px; /* ছবির উচ্চতা */
}

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

/* ছবির ওপর গ্রেডিয়েন্ট ফিনিশ */
.member-img-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 70%; 
    background: linear-gradient(to bottom, transparent, #ffffff 95%);
}

.member-info {
    padding: 20px;
    position: relative;
    z-index: 2;
    background: #ffffff; /* টেক্সট অংশ সাদা রাখার জন্য */
}

/* --- প্রফেশনাল পিউর ব্ল্যাক ফুটার --- */
footer {
    background: #000000 !important; 
    padding: 80px 0 30px 0;
    margin-top: 80px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
}

.footer-logo-section img {
    width: 200px; 
    margin-bottom: 20px;
}

.footer-description {
    color: #888888 !important;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-links-col h4 {
    color: #ffffff;
    font-size: 16px;
    margin-bottom: 25px;
    position: relative;
}

.footer-links-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 30px;
    height: 2px;
    background: #3b82f6;
}

.footer-links-col ul li {
    list-style: none;
    margin-bottom: 12px;
}

.footer-links-col ul li a {
    color: #888888 !important;
    text-decoration: none;
    font-size: 14px;
    transition: 0.3s;
}

.footer-links-col ul li a:hover {
    color: #3b82f6 !important;
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 35px;
    height: 35px;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: white !important;
    transition: 0.3s;
}

.social-icons a:hover {
    background: #3b82f6;
}

.footer-bottom {
    text-align: center;
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
    color: #555555 !important;
    font-size: 13px;
}

/* --- বাটন ডিজাইন --- */
.btn {
    background: #001f3f;
    color: #ffffff !important;
    padding: 10px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn:hover {
    background: #3b82f6;
}

/* --- মোবাইল রেসপন্সিভ --- */
@media (max-width: 768px) {
    .menu-icon { display: block; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 75px;
        right: 20px;
        background: #000000;
        width: 220px;
        padding: 25px;
        border-radius: 12px;
    }
    .nav-links.active { display: flex; }
    .nav-logo { width: 180px; }
    .footer-container { grid-template-columns: 1fr; text-align: center; }
    .social-icons { justify-content: center; }
    .footer-links-col h4::after { left: 50%; transform: translateX(-50%); }
    .slider-track { flex-direction: column; align-items: center; }
}