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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 600px;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

.header h1 {
    color: #2d3748;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: #718096;
    font-size: 1.1rem;
    font-weight: 400;
}

.form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #2d3748;
    font-weight: 600;
    font-size: 1rem;
}

.form-group input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: white;
}

.form-group input::placeholder {
    color: #a0aec0;
}

.password-input {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
}

.toggle-password:hover {
    background-color: rgba(102, 126, 234, 0.1);
}

.eye-icon {
    width: 20px;
    height: 20px;
    fill: #718096;
    transition: fill 0.3s ease;
}

.toggle-password:hover .eye-icon {
    fill: #667eea;
}

.submit-btn {
    width: 100%;
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: none;
}

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

.status-section {
    margin-bottom: 30px;
}

.status-bar {
    background: #f7fafc;
    border-radius: 12px;
    padding: 15px 20px;
    border: 1px solid #e2e8f0;
}

.status-text {
    color: #4a5568;
    font-weight: 500;
    margin-bottom: 10px;
}

.progress-bar {
    height: 4px;
    background: #e2e8f0;
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    animation: progress 2s ease-in-out infinite;
    display: none;
}

@keyframes progress {
    0% { left: -100%; }
    100% { left: 100%; }
}

.result-section {
    background: #f7fafc;
    border-radius: 12px;
    padding: 20px;
    border: 1px solid #e2e8f0;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.result-header h3 {
    color: #2d3748;
    font-size: 1.2rem;
    font-weight: 600;
}

.clear-btn {
    background: #e53e3e;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.clear-btn:hover {
    background: #c53030;
    transform: translateY(-1px);
}

.result-container {
    background: white;
    border-radius: 8px;
    padding: 15px;
    border: 1px solid #e2e8f0;
    max-height: 300px;
    overflow-y: auto;
}

.result-text {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    color: #2d3748;
    white-space: pre-wrap;
    word-wrap: break-word;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .card {
        padding: 30px 20px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .form-group input {
        padding: 12px 16px;
    }
    
    .submit-btn {
        padding: 12px 24px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .card {
        padding: 20px 15px;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .result-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
}

/* 加载状态 */
.loading .spinner {
    display: block;
}

.loading .btn-text {
    display: none;
}

.loading .progress-bar::before {
    display: block;
}

/* 成功状态 */
.success .status-text {
    color: #38a169;
}

/* 错误状态 */
.error .status-text {
    color: #e53e3e;
}