/* Base Styles */
:root {
    --primary-color: #ffffff;
    --secondary-color: #000000;
    --accent-color: #3a86ff;
    --error-color: #ff3b30;
    --text-color: #333333;
    --light-gray: #f5f5f5;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
    background-color: var(--secondary-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    line-height: 1.6;
}

/* Login Container */
.login-container {
    background: var(--primary-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 420px;
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), #6c5ce7);
}

/* Logo */
.logo {
    text-align: center;
    margin-bottom: 30px;
    position: relative;
}

.logo h1 {
    color: var(--secondary-color);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.logo p {
    color: #666;
    font-size: 14px;
    font-weight: 400;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--secondary-color);
    font-weight: 500;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 15px 12px 40px;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
    background-color: #f9f9f9;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(58, 134, 255, 0.2);
}

.input-icon {
    position: absolute;
    left: 12px;
    top: 38px;
    color: #999;
    font-size: 18px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px;
    background: var(--secondary-color);
    color: var(--primary-color);
    border: none;
    border-radius: var(--border-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn:hover {
    background: #333;
    transform: translateY(-2px);
}

.btn i {
    margin-right: 8px;
    font-size: 16px;
}

/* Error Message */
.error-message {
    background: #fff0f0;
    color: var(--error-color);
    padding: 12px 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    font-size: 14px;
    border-left: 4px solid var(--error-color);
    display: flex;
    align-items: center;
}

.error-message i {
    margin-right: 8px;
    font-size: 18px;
}

/* Footer */
.footer-note {
    text-align: center;
    margin-top: 25px;
    color: #999;
    font-size: 12px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

/* Unauthorized Access */
.unauthorized-container {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
    padding: 40px;
}

.unauthorized-icon {
    font-size: 80px;
    color: var(--error-color);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    width: 120px;
    height: 120px;
    border: 4px solid var(--error-color);
    border-radius: 50%;
    line-height: 112px;
}

.unauthorized-icon::before,
.unauthorized-icon::after {
    content: '';
    position: absolute;
    height: 4px;
    width: 60px;
    background-color: var(--error-color);
    top: 58px;
    left: 30px;
    transform: rotate(45deg);
}

.unauthorized-icon::after {
    transform: rotate(-45deg);
}

.unauthorized-container h1 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 28px;
}

.unauthorized-container p {
    color: #ccc;
    margin-bottom: 25px;
    font-size: 16px;
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
    }
    
    .logo h1 {
        font-size: 24px;
    }
    
    .unauthorized-container {
        padding: 20px;
    }
    
    .unauthorized-icon {
        font-size: 60px;
        width: 100px;
        height: 100px;
        line-height: 92px;
    }
    
    .unauthorized-icon::before,
    .unauthorized-icon::after {
        width: 50px;
        top: 48px;
        left: 25px;
    }
}