* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f5f5;
    color: #333;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: 8px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    color: #667eea;
    font-size: 24px;
    margin-bottom: 8px;
}

.logo p {
    color: #666;
    font-size: 14px;
}

/* Navbar */
.navbar {
    background: white;
    padding: 15px 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 20px;
    font-weight: 600;
    color: #667eea;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

#userInfo {
    color: #666;
    font-size: 14px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-header h2 {
    color: #333;
    font-size: 28px;
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-danger {
    background: #dc3545;
    color: white;
    padding: 8px 16px;
    font-size: 13px;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-success {
    background: #28a745;
    color: white;
    padding: 8px 16px;
    font-size: 13px;
}

.btn-success:hover {
    background: #218838;
}

/* Table */
table {
    width: 100%;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

thead {
    background: #f8f9fa;
}

th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: #555;
    border-bottom: 2px solid #dee2e6;
}

td {
    padding: 15px;
    border-bottom: 1px solid #dee2e6;
}

tbody tr:hover {
    background: #f8f9fa;
}

.loading {
    text-align: center;
    color: #999;
    padding: 40px !important;
}

.actions {
    display: flex;
    gap: 10px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 8px;
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: #333;
}

.close {
    font-size: 28px;
    font-weight: 300;
    color: #999;
    cursor: pointer;
}

.close:hover {
    color: #333;
}

.modal-body {
    padding: 30px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

/* File Browser */
.file-browser {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 15px;
    max-height: 300px;
    overflow-y: auto;
    background: #fafafa;
}

.breadcrumb {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ddd;
    color: #667eea;
    font-size: 14px;
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.file-item {
    padding: 10px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-item:hover {
    background: #f0f0f0;
}

.file-item.directory {
    font-weight: 500;
    color: #667eea;
}

.file-item.file {
    color: #333;
}

.file-item input[type="checkbox"] {
    width: auto;
}

.selected-files {
    margin-top: 15px;
    padding: 10px;
    background: #e7f3ff;
    border-radius: 4px;
    min-height: 40px;
}

.selected-files .tag {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 5px 10px;
    border-radius: 3px;
    margin: 5px;
    font-size: 13px;
}

/* Error Message */
.error-message {
    color: #dc3545;
    background: #f8d7da;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    display: none;
}

.error-message.show {
    display: block;
}

/* Success Message */
.success-message {
    color: #155724;
    background: #d4edda;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
}