/* static/styles.css */

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #333;
    color: #fff;
    padding: 15px 0;
}

header h1 {
    text-align: center;
    margin: 0;
}

nav {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 10px;
}

nav button {
    background-color: #555;
    color: #fff;
    border: none;
    padding: 10px 15px;
    margin: 5px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

nav button.active,
nav button:hover {
    background-color: #ff6600;
}

main {
    padding: 20px;
}

.video-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px; /* 为视频项之间添加间距 */
}

.video-item {
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    width: calc(25% - 20px);
    box-sizing: border-box;
    padding: 10px;
    display: flex;
    flex-direction: column;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.video-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

.video-item p {
    padding: 10px;
    margin: 0;
    color: #333;
    font-size: 14px;
}

.video-item a {
    text-decoration: none;
    color: inherit;
}

.video-item a:hover p {
    background-color: #f0f0f0;
}

.flash-message {
    margin-bottom: 15px;
    padding: 10px;
    border-radius: 4px;
}

.flash-message.error {
    background-color: #f8d7da;
    color: #721c24;
}

.flash-message.success {
    background-color: #d4edda;
    color: #155724;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 12px;
    text-align: center;
}

th {
    background-color: #f2f2f2;
}

.filter-form {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.filter-form input[type="date"],
.filter-form select {
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.filter-form button {
    padding: 6px 12px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.filter-form button:hover {
    background-color: #555;
}

.pagination {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.pagination a, .pagination span {
    padding: 8px 12px;
    text-decoration: none;
    color: #333;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.pagination a:hover {
    background-color: #f0f0f0;
}

.pagination .current-page {
    background-color: #ff6600;
    color: #fff;
    border-color: #ff6600;
}

.login-container, .admin-login-container {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    width: 300px;
    text-align: center;
    margin: 25vh auto;
}

.login-container h2, .admin-login-container h2 {
    margin-bottom: 20px;
    color: #333;
}

.login-container input[type="text"],
.admin-login-container input[type="text"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.login-container button,
.admin-login-container button {
    width: 100%;
    padding: 10px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.login-container button:hover,
.admin-login-container button:hover {
    background-color: #555;
}

.admin-login-container button {
    background-color: #333;
}

.admin-login-container button:hover {
    background-color: #555;
}

form label {
    display: block;
    margin-bottom: 5px;
    color: #333;
}

form input[type="text"] {
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    box-sizing: border-box;
}

form button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
}

form button:hover {
    background-color: #555;
}

table button {
    padding: 5px 10px;
    margin: 2px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

table button:hover {
    opacity: 0.8;
}

table button:nth-child(1) {
    background-color: #ff6600;
    color: #fff;
}

table button:nth-child(2) {
    background-color: #d9534f;
    color: #fff;
}

/* 加载页面样式 */
.loading-container {
    text-align: center;
}

.spinner {
    border: 8px solid #f3f3f3;
    border-top: 8px solid #333;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 1000px) {
    .video-item {
        width: calc(50% - 20px);
    }
}

@media (max-width: 600px) {
    .video-item {
        width: 100%;
    }

    table, th, td {
        font-size: 14px;
    }
}