body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4efe9 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
}

.login-container {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.logo {
    color: #2C3E50;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.subtitle {
    color: #7F8C8D;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2C3E50;
    font-weight: 500;
}

input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #DDD;
    border-radius: 5px;
    font-size: 1rem;
    box-sizing: border-box;
}

input:focus {
    border-color: #3498DB;
    outline: none;
}

.password-container {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #7F8C8D;
}

button {
    width: 100%;
    padding: 0.8rem;
    background: #3498DB;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background: #2980B9;
}

.options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1rem 0;
    font-size: 0.9rem;
}

.forgot-password {
    color: #E74C3C;
    text-decoration: none;
}

.forgot-password:hover {
    text-decoration: underline;
}

.signup-link {
    margin-top: 1.5rem;
    color: #7F8C8D;
}

.signup-link a {
    color: #3498DB;
    text-decoration: none;
}

.signup-link a:hover {
    text-decoration: underline;
}

.error-message {
    color: #E74C3C;
    background: #FADBD8;
    padding: 0.8rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.success-message {
    color: #27AE60;
    background: #D5F5E3;
    padding: 0.8rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}