/* stem.css */
body {
    background-color: #f9f9f9;
    transition: background-color 0.3s, color 0.3s;
}

a,
.card a {
    text-decoration: none;
}

a:hover,
.card a:hover {
    text-decoration: underline;
}

/* Card styling for grid layout */
.card {
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border-radius: 12px;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15) !important;
}

.card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-text {
    flex: 1;
}

.card-img-top {
    height: 200px;
    object-fit: cover;
}

body.dark-mode .card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5) !important;
}

#categoryFilter {
    margin-bottom: 1rem;
}

#searchBtn,
#topBtn {
    z-index: 999;
}

#mainNavbar {
    transition: top 0.3s;
    /* Glass effect with blur and transparency */
    background-color: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Grid Layout for Landing Page */
.feed-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 50px 20px 20px 20px;
}

#feed {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    padding: 0;
}

/* Tablet and larger */
@media (min-width: 768px) {
    .feed-wrapper {
        padding-top: 50px;
    }

    #feed {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 28px;
    }
}

/* Desktop */
@media (min-width: 1200px) {
    #feed {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
        gap: 32px;
    }
}

/* Mobile devices need more padding due to collapsed navbar */
@media (max-width: 767px) {
    .feed-wrapper {
        padding-top: 40px;
        padding-left: 16px;
        padding-right: 16px;
    }

    #feed {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 🌙 Dark Mode */
body.dark-mode {
    background-color: #121212;
    color: #f1f1f1;
}

body.dark-mode .navbar {
    background-color: rgba(33, 33, 33, 0.8) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

body.dark-mode .form-control {
    background-color: #1e1e1e;
    color: #f1f1f1;
    border-color: #333;
}

body.dark-mode .form-control::placeholder {
    color: #bbb;
}

body.dark-mode .card {
    background-color: #1f1f1f;
    color: #f1f1f1;
}

body.dark-mode .card a {
    color: #cce7ff;
}

body.dark-mode .btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

body.dark-mode .btn-secondary {
    background-color: #6c757d;
    border-color: #6c757d;
}