:root {
    --primary: #2c3e50;
    --primary-light: #3d566e;
    --secondary: #3498db;
    --accent: #e74c3c;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --gray: #95a5a6;
    --light-gray: #f5f5f5;
    --white: #ffffff;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-card {
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    padding: 40px;
    position: relative;
}

.logo-container {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 15px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--light);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

h2 {
    color: var(--dark);
    font-size: 24px;
    font-weight: 600;
}

.error-message {
    background-color: #fdecea;
    color: var(--accent);
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.login-form {
    margin-top: 20px;
}

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

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.input-with-icon input {
    width: 100%;
    padding: 14px 15px 14px 45px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s;
    background-color: var(--light-gray);
}

.input-with-icon input:focus {
    border-color: var(--secondary);
    background-color: var(--white);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
    outline: none;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.remember-me input {
    accent-color: var(--secondary);
}

.forgot-password {
    color: var(--secondary);
    text-decoration: none;
    transition: all 0.3s;
}

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

.login-button {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.login-footer {
    margin-top: 25px;
    text-align: center;
    font-size: 14px;
    color: var(--gray);
}

.login-footer a {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* Responsive design */
@media (max-width: 480px) {
    .login-card {
        padding: 30px 20px;
        border-radius: 10px;
    }
    
    .logo {
        width: 80px;
        height: 80px;
    }
    
    h2 {
        font-size: 20px;
    }
}