body {
    margin: 0;
    font-family: sans-serif;
    background: #fdfdfd;
    color: #222;
}

header, footer {
    background: #fafafa;
    padding: 0.5rem 1rem;
    position: fixed;
    left: 0;
    right: 0;
    z-index: 10;
}

header {
    top: 0;
    border-bottom: 1px solid #ccc;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

footer {
    bottom: 0;
    border-top: 1px solid #ccc;
    text-align: center;
    font-size: 0.85rem;
}

main {
    padding: 6rem 1rem 4rem 1rem;
    max-width: 700px;
    margin: auto;
    display: block;
}

.logo-box {
    width: 50px;
    height: 50px;
    background: #ccc;
    border-radius: 4px;
}

.title {
    font-size: 1.4rem;
    font-weight: bold;
}

.btn {
    padding: 0.4rem 0.8rem;
    border: 1px solid #444;
    background: #fff;
    cursor: pointer;
}

.btn:hover {
    background: #eee;
}

.filter-box table {
    width: 100%;
    border-spacing: 0.3rem 0.4rem;
}

.filter-box select,
.filter-box input {
    width: 100%;
    padding: 0.3rem;
}

.item {
    background: #fff;
    border: 1px solid #ddd;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
    animation: fadeIn 0.6s ease;
}

.item-title {
    font-weight: bold;
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}

.warning {
    color: red;
    font-weight: bold;
}

.hidden {
    display: none;
}

/* Fade-in animation */
.fade-in {
    opacity: 0;
    animation: fadeInPage 0.7s ease forwards;
}

@keyframes fadeInPage {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}