:root {
    --primary-color: #4F46E5; /* Vibrant Indigo */
    --secondary-color: #3730A3; /* Darker Indigo */
    --accent-color: #EC4899;   /* Bright Pink for accents */
    --text-color: #333;
    --light-gray: #f4f7f6;
    --white: #ffffff;
    --font-family: 'Poppins', sans-serif;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--light-gray);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.auth-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 40px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
}

.auth-logo {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.auth-logo .light {
    font-weight: 300;
}

.auth-logo .on-campus {
    color: var(--primary-color);
}

.auth-wrapper h2 {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.auth-wrapper p {
    color: #666;
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #555;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-sizing: border-box;
    font-family: var(--font-family);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.auth-btn {
    width: 100%;
    padding: 14px;
    border: none;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.auth-links {
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.auth-links a:hover {
    color: var(--secondary-color);
}

.help-block, .alert-error {
    color: #D32F2F;
    font-size: 0.85rem;
    margin-top: 5px;
}

.alert-success {
    background-color: #E8F5E9;
    color: #2E7D32;
    padding: 1rem;
    border: 1px solid #C8E6C9;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}