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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

/* Login page */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    margin-bottom: 10px;
    color: #333;
}

.subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.login-form input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

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

.hint {
    margin-top: 30px;
    padding: 15px;
    background: #f5f5f5;
    border-radius: 8px;
    font-size: 12px;
    color: #666;
}

.hint p {
    margin: 5px 0;
}

/* Dashboard */
.container {
    max-width: 1200px;
    margin: 0 auto;
}

.header {
    background: white;
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #333;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info span {
    color: #666;
}

.content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
}

@media (max-width: 768px) {
    .content {
        grid-template-columns: 1fr;
    }
}

/* Upload section */
.upload-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    height: fit-content;
}

.upload-section h2 {
    margin-bottom: 20px;
    color: #333;
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.upload-form input[type="file"] {
    width: 100%;
    padding: 10px;
    border: 2px dashed #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
}

.upload-form input[type="file"]:hover {
    border-color: #667eea;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f5f5f5;
    color: #333;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background: #e0e0e0;
}

/* Status */
.status {
    margin-top: 15px;
    padding: 10px;
    border-radius: 8px;
    font-size: 14px;
}

.status.success {
    background: #d4edda;
    color: #155724;
}

.status.error {
    background: #f8d7da;
    color: #721c24;
}

.processing {
    color: #667eea;
    font-style: italic;
}

/* Files section */
.files-section {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.files-section h2 {
    margin-bottom: 20px;
    color: #333;
}

.files-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.file-card {
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    padding: 20px;
    transition: border-color 0.3s;
}

.file-card:hover {
    border-color: #667eea;
}

.file-info h3 {
    color: #333;
    margin-bottom: 5px;
}

.file-meta {
    color: #999;
    font-size: 12px;
}

.file-preview {
    margin: 15px 0;
    padding: 15px;
    background: #f5f5f5;
    border-radius: 8px;
    font-size: 13px;
    color: #666;
    max-height: 100px;
    overflow-y: auto;
}

.file-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);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 15px;
    width: 90%;
    max-width: 900px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: #333;
    font-size: 18px;
}

.close-btn {
    background: none;
    border: none;
    font-size: 30px;
    color: #999;
    cursor: pointer;
}

.close-btn:hover {
    color: #333;
}

.modal-body {
    padding: 30px;
    flex: 1;
    overflow-y: auto;
}

.modal-body textarea {
    width: 100%;
    min-height: 400px;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: monospace;
    font-size: 13px;
    resize: vertical;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}