:root {
    --primary-color: #0a58a0;
    --secondary-color: #031e37; /* Darker blue/charcoal */
    --text-color: #484848;
    --light-text-color: #ffffff;
    --border-color: #d9d9d9;
    --input-border-color: #ced4da; /* Slightly darker for input fields */
    --background-color: #f0f2f5;
    --card-background-color: #ffffff;
    --muted-text-color: #777777;
    --error-color: #dc3545;
    --font-family-sans-serif: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --border-radius: 8px;
    --default-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --input-focus-border-color: var(--primary-color);
    --input-focus-box-shadow: 0 0 0 0.25rem rgba(10, 88, 160, 0.25); /* Themed primary color */
}

body {
    font-family: var(--font-family-sans-serif);
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding-top: 70px; /* Account for fixed navbar, adjust if navbar height changes */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 70px); /* Full viewport height minus navbar */
    box-sizing: border-box;
}

.login-container {
    background-color: var(--card-background-color);
    padding: 25px 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--default-shadow);
    width: 100%;
    max-width: 400px; /* Max width of the form container */
    margin: 20px;
    box-sizing: border-box;
}

.login-container h1 {
    color: var(--secondary-color); /* Using darker theme color for heading */
    text-align: center;
    margin-bottom: 25px;
    font-size: 1.8em;
}

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

#login-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: bold;
    font-size: 0.9em;
    color: var(--muted-text-color);
}

#login-form input[type="email"],
#login-form input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border-color);
    border-radius: var(--border-radius);
    box-sizing: border-box;
    font-size: 1em;
    color: var(--text-color);
}

#login-form input[type="email"]:focus,
#login-form input[type="password"]:focus {
    border-color: var(--input-focus-border-color);
    outline: none;
    box-shadow: var(--input-focus-box-shadow);
}

.error-message {
    display: block;
    color: var(--error-color);
    font-size: 0.8em;
    margin-top: 4px;
    min-height: 1em; /* Reserve space to prevent layout shifts */
}

.form-options {
    display: flex;
    justify-content: flex-end;
    font-size: 0.85em;
    margin-bottom: 20px;
}

.forgot-password-link {
    color: var(--primary-color);
    text-decoration: none;
}

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

.submit-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: var(--light-text-color);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1.1em;
    transition: background-color 0.3s ease;
}

.submit-btn:hover {
    background-color: var(--secondary-color); /* Darken on hover */
}

.message-area {
    padding: 10px;
    margin-top: 15px;
    border-radius: 5px;
    text-align: center;
}

.signup-link-container {
    text-align: center;
    font-size: 0.9em;
    margin-top: 20px;
}

.signup-link-container a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

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

/* Styles for social login (optional, if you implement Google/Gmail login later) */
.social-login-divider {
    text-align: center;
    margin: 20px 0;
    color: var(--muted-text-color);
}
.social-login-divider span {
    background-color: #fff;
    padding: 0 10px;
    position: relative;
    top: -0.7em;
}
.social-login-divider::before {
    content: "";
    display: block;
    width: 100%;
    height: 1px;
    background-color: var(--border-color);
    position: relative;
    top: 0.5em;
}
.social-login-btn {
    width: 100%;
    padding: 10px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: var(--card-background-color);
    color: var(--text-color);
    cursor: pointer;
    font-size: 1em;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}
.social-login-btn:hover {
    background-color: #e9ecef; /* Slightly darker hover for light buttons */
    border-color: #adb5bd;
}
.google-btn {
    /* Add Google specific styling if needed, e.g., Google icon */
}

/* In login.css */
.logo-image {
    display: block; /* To allow margins to work correctly */
    margin: 0 auto 20px; /* Center the logo and add some bottom margin */
    max-width: 125px; /* Adjust as needed */
    height: auto; /* Maintain aspect ratio */
}