body {
    font-family: Arial;
    background: #f4f4f4;
    margin: 20px;
}

h2 { margin-bottom: 15px; }

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

th, td {
    border: 1px solid #ccc;
    padding: 8px;
}

th {
    background: #e6e6e6;
}

.btn {
    display: inline-block;
    padding: 8px 12px;
    background: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin: 10px 0;
}

.delete {
    color: red;
    text-decoration: none;
    font-size: 18px;
}

.form {
    background: white;
    width: 500px;
    padding: 20px;
    border-radius: 8px;
}

.form input, .form textarea {
    width: 100%;
    padding: 6px;
    margin-bottom: 12px;
    border: 1px solid #aaa;
    border-radius: 4px;
}
.search-input {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
}

.year-filter {
    margin: 10px 0;
}

.year-btn {
    padding: 6px 12px;
    border: 1px solid #777;
    display: inline-block;
    margin: 5px;
    text-decoration: none;
    color: black;
    border-radius: 5px;
}

.year-btn:hover {
    background: #ddd;
}

.active-year {
    background: #8fc1ff;
}

.year-btn.reset {
    background: #f2a5a5;
}
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(2px);
}

.modal-content {
    background: #fff;
    width: 350px;
    padding: 20px;
    border-radius: 8px;
    margin: 15% auto;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    animation: showModal 0.25s ease;
}

@keyframes showModal {
    from { opacity: 0; transform: scale(0.9); }
    to   { opacity: 1; transform: scale(1); }
}

.modal-buttons {
    margin-top: 15px;
    display: flex;
    justify-content: space-between;
}

.btn.danger {
    background: #d9534f;
    color: #fff;
}
.btn.danger:hover {
    background: #c9302c;
}