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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    height: 100vh;
    overflow: hidden;
    position: relative;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    padding: 20px;
}

.login-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    border: 2px solid rgba(200, 200, 200, 0.3);
    animation: slideIn 0.5s ease-out;
}

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

.login-title {
    font-size: 28px;
    font-weight: bold;
    color: #333;
    margin-bottom: 8px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.login-subtitle {
    color: #666;
    font-size: 14px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.form-input {
    padding: 12px 16px;
    border: 2px solid rgba(200, 200, 200, 0.5);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    background: rgba(255, 255, 255, 0.95);
}

.form-input::placeholder {
    color: #999;
}

.login-button {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.login-button:active {
    transform: translateY(0);
}

.login-button:disabled {
    background: rgba(200, 200, 200, 0.5);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.error-message {
    background: rgba(229, 62, 62, 0.1);
    border: 1px solid rgba(229, 62, 62, 0.3);
    color: #dc2626;
    padding: 12px;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
    display: none;
}

.error-message.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

.error-message.warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.4);
    color: #b45309;
}

.loading-spinner {
    display: none;
    text-align: center;
    color: #666;
    font-size: 14px;
}

.loading-spinner.show {
    display: block;
}

.spinner {
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3b82f6;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    margin: 0 auto 8px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.demo-credentials {
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    padding: 12px;
    margin-top: 20px;
    font-size: 12px;
    color: #666;
}

.demo-credentials h4 {
    margin: 0 0 8px 0;
    color: #333;
    font-size: 13px;
}

.demo-credentials p {
    margin: 4px 0;
}