```css
/* =========================================
   Password Requirements
   ========================================= */

.password-requirements {
    margin-top: 8px;
}

.password-requirements-title {
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 4px;
}

.password-rules {
    list-style: none;
    padding: 0;
    margin: 0;
}

.password-rules li {
    font-size: 14px;
    margin-bottom: 3px;
    color: #6b7280;
    transition: color 0.2s ease;
}

.password-rules li.valid {
    color: #16a34a;
}

.password-rules li.invalid {
    color: #dc2626;
}

.rule-icon {
    display: inline-block;
    width: 20px;
    font-weight: bold;
}


/* =========================================
   Password Match
   ========================================= */

.password-match {
    font-size: 14px;
    margin-top: 4px;
}

.password-match.match {
    color: #16a34a;
}

.password-match.no-match {
    color: #dc2626;
}


/* =========================================
   Dark Mode
   ========================================= */

@media (prefers-color-scheme: dark) {

    .password-requirements-title {
        color: #d1d5db;
    }

    .password-rules li {
        color: #9ca3af;
    }

    .password-rules li.valid {
        color: #4ade80;
    }

    .password-rules li.invalid {
        color: #f87171;
    }
}
```