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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #000000;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

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

.login-card {
    background: #1a1a1a;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 8px 25px rgba(255, 0, 0, 0.2);
    border: 1px solid #333;
    text-align: center;
}

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

.logo {
    width: 60px;
    height: 60px;
    background: #ff0000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.5);
}

.logo i {
    color: white;
    font-size: 28px;
}

.login-header h1 {
    color: #ff0000;
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 5px;
    text-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
}

.login-header p {
    color: #ffffff;
    font-size: 1rem;
    opacity: 0.8;
}

.login-form {
    text-align: left;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #ff0000;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #333;
    border-radius: 8px;
    font-size: 16px;
    background: #2a2a2a;
    color: #ffffff;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #ff0000;
    background: #333;
}

.form-group input::placeholder {
    color: #666;
    opacity: 1;
}

.password-input {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    font-size: 16px;
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: #ff0000;
}

.login-btn {
    width: 100%;
    background: #ff0000;
    color: white;
    border: none;
    padding: 15px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.login-btn:hover {
    background: #cc0000;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 0, 0, 0.5);
}

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

.error-message {
    color: #ff4444;
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid #ff4444;
    border-radius: 8px;
    padding: 12px;
    margin-top: 20px;
    font-size: 14px;
    display: none;
}

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

/* Responsive Design */
@media (max-width: 480px) {
    .login-container {
        padding: 15px;
    }
    
    .login-card {
        padding: 30px 20px;
    }
    
    .login-header h1 {
        font-size: 1.8rem;
    }
}