:root {
    --primary-color: #065f46; /* Deep Emerald */
    --secondary-color: #10b981; /* Mint/Emerald light */
    --accent-color: #f59e0b; /* Warm Gold */
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-muted: #64748b;
}

body {
    font-family: 'Noto Sans Bengali', sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    overflow-x: hidden;
}

/* --- Navbar Styles --- */
.navbar-custom {
    background-color: var(--primary-color);
    padding: 15px 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.navbar-custom .navbar-brand {
    font-size: 1.8rem;
    color: #ffffff;
    letter-spacing: 1px;
}
.navbar-custom .nav-link {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    margin: 0 5px;
    font-size: 1.05rem;
    transition: all 0.3s;
}
.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--accent-color);
    transform: translateY(-2px);
}
.navbar-toggler {
    border-color: rgba(255,255,255,0.5);
}

/* --- Slider Styles --- */
.carousel-item {
    height: 85vh;
    background-color: #000;
}
.carousel-item img {
    object-fit: cover;
    opacity: 0.6; /* Dark overlay for text readability */
    height: 100%;
    width: 100%;
}
.carousel-caption {
    bottom: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.hero-title {
    font-size: 3.5rem;
    text-shadow: 2px 4px 8px rgba(0,0,0,0.7);
    animation: fadeInDown 1s ease-in-out;
}
.hero-subtitle {
    font-size: 1.5rem;
    text-shadow: 1px 2px 4px rgba(0,0,0,0.7);
    max-width: 800px;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-in-out 0.3s;
    animation-fill-mode: both;
}
.btn-donate-hero {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    padding: 12px 35px;
    font-size: 1.2rem;
    border-radius: 50px;
    transition: all 0.3s;
    animation: zoomIn 1s ease-in-out 0.6s;
    animation-fill-mode: both;
}
.btn-donate-hero:hover {
    background-color: #d97706;
    color: #fff;
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(245, 158, 11, 0.4);
}

/* --- Sections Global --- */
.section-padding { padding: 90px 0; }
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-align: center;
}
.title-underline {
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
    margin: 0 auto 40px auto;
    border-radius: 2px;
}

/* --- Features Section --- */
.features-section {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
}
.feature-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 40px 30px;
    height: 100%;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    border-bottom: 4px solid transparent;
}
.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.1);
    border-bottom: 4px solid var(--secondary-color);
}
.icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px auto;
    color: var(--primary-color);
    font-size: 2rem;
    transition: all 0.3s ease;
}
.feature-card:hover .icon-wrapper {
    background: var(--primary-color);
    color: #ffffff;
    transform: scale(1.1);
}
.feature-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 15px; }
.stats-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 600;
}

/* --- News Slider --- */
.news-section {
    background-color: #f1f5f9;
}
.news-card {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    background: #fff;
    transition: all 0.3s;
    height: 100%;
}
.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}
.news-img {
    height: 200px;
    width: 100%;
    object-fit: cover;
}
.news-content {
    padding: 20px;
}
.news-date {
    font-size: 0.85rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 5px;
    display: block;
}
.news-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.swiper-pagination-bullet-active {
    background: var(--primary-color);
}

/* --- CTA Section --- */
.cta-section {
    background-color: var(--primary-color);
    color: white;
    padding: 70px 0;
    text-align: center;
}

/* --- Footer --- */
.site-footer {
    background-color: #0f172a;
    color: #cbd5e1;
    padding: 60px 0 20px 0;
}
.footer-heading { color: white; margin-bottom: 20px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #cbd5e1; text-decoration: none; transition: 0.3s; }
.footer-links a:hover { color: var(--accent-color); padding-left: 5px; }

/* Animations */
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes zoomIn { from { opacity: 0; transform: scale(0.8); } to { opacity: 1; transform: scale(1); } }